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Lake Zumbro Current Conditions
              
            

Legend :

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These graphs are updated every hour at the top of the hour.

Lake Levels - Left Side Graphs

    The left side graphs include the last 24 hours of lake levels in the upper left, and the last 31 days in
the lower left. These charts may have one, two, or three horizontal lines on it that depict the 919.7, 920.7,
and 921.0 reference levels.  The lake is "closed" (No Wake conditions) when the water level reaches 921.0,
and remains "closed" until the level recedes to 920.7.   A horizontal blue dashed line represents the normal
summer water level (919.7). These levels are extracted from the
official levels maintained by Rochester Public Utilities.    (www.rpu.org)
Official "Open/Closed" Lake Zumbro status can be found below, or at:  Sheriff's Lake Zumbro Status
The Zumbro river flow rate and water level at 37th St bridge in Rochester is at:  USGS Real-time data South Fork Zumbro River
Beside the south fork, the middle fork, flowing through Oronoco, delivers water to the Lake.
The middle fork is unmonitored by the USGS, however NOAA does offer a web site:   NOAA Real-Time data North Branch Middle Fork Zumbro at Pine Island
The above URL does NOT show flows on the South branch of the middle fork, through Oxbow park to Lake Shady in Oronoco.

All levels charted and printed are in feet above sea level.   The maximum daily 24 hour level is
given at the top of this graph, and the minimum level is shown at the graph's lower left bottom.
The most recent value of lake level is shown under the x axis, following the 'Level Ft_____' legend.
The 2 digits for military hourly times are shown just below the horizontal axis.
A blue dashed vertical line represents midnight, while a red dashed line is associated with noon.
Most recent samples are found at the right side of each graph.

The graph in lower left corner shows the minimum and maximum levels for the last 31 days.
The maximum value in 31 days appears at the upper left, and the minimum value is shown in the
lower left. The most recent values of lake level maximum/minimums are shown under the x axis,
following the 'Min Level_____' and 'Max Level_____' legends.
One or two horizontal lines may appear, corresponding to the 920.7 and 921.0
water levels,  if the graph's range includes those values.    The sample dates are
shown under the horizontal axis.   A blue dotted vertical line represents the 1st of the
month, while a red dotted vertical line indicates the 15th.

Lake Water Temperature - Right Side Graphs

The graphs on the right side chart current water temperature, in degrees Fahrenheit.    3 temperature
sensors are located in shallow water  (approximately 4 feet, 10 feet, and 15 feet).   
An air temperature sensor is also located 5 feet above normal lake level, and data from that sensor
is shown in light blue.
The upper right graph shows the last 24 hours temperatures,
with most recent temperatures to the right side.   Maximum temperature
for the last 24 hours is printed in the upper left corner of the graph,  while the minimum temperature
is found at the lower left corner of this graph. 
The 2 digits for military hourly times are shown just below the horizontal axis.

The graph in the lower right depicts the minimum and maximum water temperatures for the last 31 days.
The sample date is shown below the horizontal axis.   A blue dotted
vertical line represents the 1st of the month, while a red dotted vertical line indicates the 15th.
 

General information

The URL to bookmark for this web page is:  http://status.lakezumbro.org
Go back to my home page:  Ray Romon's home page

The URL for the main Lake Zumbro Improvement Association/ Lake Zumbro Forever, Inc is:   http://lakezumbro.org

Water level absolute numbers, such as 919.7, are elevations above sea level.  Water levels
given as relative numbers in the tables above are relative to the mean managed nominal summertime
level of 919.7 feet above sea level.   The lake is 'closed' when water level reaches
921.0 (+1.0 feet from normal).    It is re-opened when the level recedes to
920.7 (+0.5 feet from normal).    The record water level for Lake Zumbro occurred
on July 22nd, 1951, at 927.4, according to the Rochester Post Bulletin. (10/04/2004)
For reference, the top of the dam is at 920.0.
This web page is updated hourly, between 50 and 59 minutes after the hour.
   If you have interest in being notified by email or SMS to cell
phones or pagers when the lake level changes to/from "flood" stage, let me know at
rfr9@pitel.nospam.net (remove the nospam for the real effective address).
This web site is NOT the official measurement to determine Lake Zumbro closure.
The Rochester Public Utilities provides the official measurements.
 

Secchi Readings information

A Secchi disk is a black and white disk aproximately 10 inches in diameter.
It is used to determine the turbidity in lakes and streams.
Basically, the Secchi reading indicates the transparency of water in terms
of feet of water that a contrasting object remains visible.
A Secchi reading of 3 (3 feet) indicates that the Secchi disk remains visible for
depths up to 3 feet. A lower reading indicates dirtier or more turbid water.
For more information about Secchi Disks, and historical readings of Lake Zumbro
water clarity, see    (Minnesota Pollution Control Agency Records)
See the table below for historic and recent Secchi readings.

Notes for ice-out/in at Postier's Point


11/16/02 - First ice seen away from shore.
11/25/02 - Freeze up. Ice shore to shore.
03/25/03 - Open water visible 1/4 mile south.
04/01/03 - Ice-out, and first water skier!
11/08/03 - First ice seen away from shore.
12/01/03 - Freeze-up. Ice shore to shore.
03/24/04 - Open water visible 1/4 mile south.
03/27/04 - Ice-out
11/30/04 - Freeze-up. Ice shore to shore
12/12/04 - Re-opens, 50mph winds, 40 degrees.
12/14/04 - Re-Freeze, 10 degrees.
03/30/05 - Open water, lake at 922 feet, and raining!
11/17/05 - First ice seen away from shore.
11/25/05 - Freeze up shore to shore.
11/30/05 - Freeze up shore to shore, after reopened, 11/27.
03/30/06 - Open water, Lake is 921.2, raining
12/02/06 - Freeze up shore to shore.
03/23/07 - Open water, Lake is 921, 6 bald eagles on ice!
11/30/07 - Freeze up shore to shore, 10 degrees
03/25/08 - Open water visible 1/4 mile south
04/05/08 - Open water, shore to shore, first fishermen
11/21/08 - Freeze up shore to shore, 11 degrees
03/18/09 - Open water 1/4 mile South, first 60 degree day 3 days ago.
03/24/09 - Open water shore to shore, first boats!
12/05/09 - Freeze up shore to shore, 16 degrees
03/15/10 - Open water 1/4 mile South, first 60 degree day, lake at 922.8.
03/18/10 - Open water 100 yard center channel beyond the point, not shore to shore
03/19/10 - Open water shore to shore
11/26/10 - Freeze up
03/23/11 - Open water,shore to shore
12/04/11 - First ice appears, NOT shore to shore
12/07/11 - Freeze up, shore to shore
03/15/12 - Open water,shore to shore
11/28/12 - Freeze up, shore to shore
12/02/12 - Opens up again, temps in the upper 50s
12/11/12 - Freeze up again, snow covered within 24 hours
04/05/13 - Open water 1/4 mile south, latest opening date yet
04/09/13 - Open water 100 yard center channel beyond the point, not shore to shore
04/12/13 - Open water shore to shore, but freezing rain
11/24/13 - Freeze up shore to shore, overnight low 8 degrees
04/06/14 - Open water shore to shore, 7pm, temperature is 57
11/14/14 - Freeze up shore to shore, temperature is 9
03/31/15 - Open water shore to shore, high temp 57
11/29/15 - Froze up shore to shore, snow on the way
12/10/15 - Open again, sustained 40 degrees + last week
12/19/15 - Froze up shore to shore, 7 degrees
03/09/16 - Open water, shore to shore, high temp 72 on 3/8
12/09/16 - Froze up shore to shore, an inch of snow on it already
02/22/17 - Open water, shore to shore, high temp 62, water 2 feet over the dam
12/08/17 - Froze up shore to shore, high temp 21


Earliest Ice up: 11/14/14 Latest Ice up: 12/14/04
Earliest Ice out: 02/22/17 Latest Ice out: 04/12/13

___________________________________________________________________
 
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Sheriff's Lake Zumbro Status:


 
If any violations of the no-wake condiitons are witnessed, please call the Sheriff's department dispatcher
at 328 - 6800 . Please include any additional information about the incident, such as the watercraft
registration number, and/or any identification characteristics about the driver, and watercraft.
 

Lake Zumbro Conditions Monthly Summaries

Month       Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
           2010  2010  2010  2010  2010  2010  2010  2010  2010  2009  2009  2009  
Max Level  918.7 918.7 922.8 920.9 920.5 921.5 920.5 920.8 926.2 920.9 920.6 918.7  
 MLVL Date 01/16 02/18 03/15 04/01 05/13 06/19 07/01 08/14 09/23 10/25 11/01 12/04  
 MLVL Time 05:30 17:36 18:36 14:39 12:36 18:36 00:36 13:36 23:40 18:30 00:21 22:18 

Yearly Maximum Level:  926.18 on 09/23/10 ( 5.1feet over 'flood' stage)
  
Min Level  918.4 918.4 918.5 919.2 919.3 918.9 919.7 919.8 919.5 919.4 918.3 918.2 
 MLvl Date 01/09 02/11 03/07 04/30 05/01 06/04 07/08 08/03 09/21 10/01 11/14 12/10 
 MLvl Time 15:33 12:24 13:36 09:36 00:36 10:36 19:36 08:36 02:39 07:41 22:36 01:36 
Yearly Minimum Level:  918.15 on 12/10/09
 

Days Closed    0     0    17     1     0     3     0     0     1     0     0     0   
 
Max Temper 32.0  32.0  32.0  87.4  88.0  88.0  88.0  88.0  88.0   0.0   0.0  32.0  
 MTmp Date 01/01 02/01 03/01 04/28 05/04 06/12 07/01 08/07 09/23             12/27 
 MTmp Time 00:47 00:53 00:55 18:56 23:54 10:49 00:52 18:48 23:55             19:57 
Yearly Maximum Temperature:  88 on 05/04/10
 

Min Temper 32.0  32.0  32.0  32.0  80.3  83.7  32.0  82.6  32.0   0.0   0.0  32.0  
 MTmp Date 01/01 02/01 03/01 04/01 05/24 06/10 07/17 08/08 09/22             12/28 
 MTmp Time 00:47 00:53 00:55 00:52 15:56 21:48 22:53 10:52 16:11             00:50 
Yearly Minimum Temperature:  32 on 12/28/09
   
Max Secchi  0.0   0.0   0.0   4.5  10.0  11.0   7.0   7.0   7.0   9.0   6.0   0.0  

 MSec Date                   04-22 05-26 06-03 07-14 08-09 09-22 10-04 11-07       
 MSec Time                   15:08 16:19 16:08 19:03 14:35 14:51 13:39 10:21       
Yearly Maximum Secchi:  11 on 06-03
 
Min Secchi  0.0   0.0   0.0   3.0   4.5   1.0   4.0   4.0   7.0   2.5   6.0   0.0  
 MSec Date                   04-04 05-09 06-20 07-05 08-17 09-22 10-31 11-07       

 MSec Time                   15:15 15:40 15:35 14:57 16:36 14:51 12:57 10:21       
Yearly Minimum Secchi:  1 on 06-20
 Most Recent Secchi:  7 on 09-22
  This table last updated 00:58:02 on 09-24-2010

2009 Lake Zumbro Conditions Monthly Summaries

Month       Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec

           2009  2009  2009  2009  2009  2009  2009  2009  2009  2009  2009  2009  

Max Level  918.8 921.4 920.3 920.2 920.0 920.8 920.0 920.2 920.0 920.9 920.6 918.7  
 MLVL Date 01/27 02/11 03/08 04/28 05/27 06/20 07/25 08/08 09/12 10/25 11/01 12/04  
 MLVL Time 07:24 11:27 05:33 20:21 21:27 04:21 04:30 13:39 18:18 18:30 00:21 22:18 
Yearly Maximum Level:  921.39 on 02/11/09 ( 0.3feet over 'flood' stage)
  
Min Level  918.1 918.1 918.2 918.2 919.5 919.1 919.5 919.3 919.4 919.4 918.3 918.2 


 MLvl Date 01/25 02/27 03/15 04/02 05/19 06/26 07/11 08/14 09/03 10/01 11/14 12/10 
 MLvl Time 08:36 07:15 01:21 11:39 22:40 23:15 04:21 21:18 16:30 07:41 22:36 01:36 
Yearly Minimum Level:  918.09 on 02/27/09
 
Days Closed    0     2     0     0     0     0     0     0     0     0     0     0   
 
Max Temper  0.0   0.0  32.0  32.0  32.0  32.0  32.0  32.0   0.0   0.0   0.0  32.0  


 MTmp Date             03/27 04/01 05/01 06/01 07/01 08/01                   12/27 
 MTmp Time             10:55 00:56 00:53 00:57 00:54 00:57                   19:57 
Yearly Maximum Temperature:  32 on 03/27/09
 
Min Temper  0.0   0.0  32.0  32.0  32.0  32.0  32.0  32.0   0.0   0.0   0.0  32.0  
 MTmp Date             03/28 04/01 05/01 06/01 07/01 08/01                   12/28 


 MTmp Time             00:56 00:56 00:53 00:57 00:54 00:57                   00:50 
Yearly Minimum Temperature:  32 on 03/28/09
   
Max Secchi  0.0   0.0   0.0   3.0  10.0   7.0   7.5   6.0  11.5   9.0   6.0   0.0  
 MSec Date                   04-18 05-29 06-03 07-20 08-01 09-13 10-04 11-07       
 MSec Time                   18:18 15:56 20:27 15:19 12:37 19:13 13:39 10:21       


Yearly Maximum Secchi:  11.5 on 09-13
 
Min Secchi  0.0   0.0   0.0   2.5   2.5   3.5   3.0   6.0   9.0   2.5   6.0   0.0  
 MSec Date                   04-22 05-11 06-19 07-07 08-01 09-06 10-31 11-07       
 MSec Time                   15:32 16:00 12:00 15:10 12:37 10:05 12:57 10:21       
Yearly Minimum Secchi:  2.5 on 04-22
 Most Recent Secchi:  6 on 11-07
  This table last updated 00:58:01 on 12-31-2009



 

2008 Lake Zumbro Conditions Monthly Summaries

Month       Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
           2008  2008  2008  2008  2008  2008  2008  2008  2008  2008  2008  2008  
Max Level  919.0 918.9 921.3 921.9 920.8 924.1 920.3 920.4 920.2 920.4 918.6 918.7  
 MLVL Date 01/25 02/28 03/15 04/12 05/03 06/13 07/21 08/15 09/27 10/08 11/30 12/19  
 MLVL Time 01:48 02:33 00:42 05:53 19:52 09:52 13:33 06:39 03:33 08:39 19:15 07:24 


Yearly Maximum Level:  924.07 on 06/13/08 ( 3feet over 'flood' stage)
  
Min Level  918.1 918.3 918.5 920.0 919.7 919.7 919.3 919.3 919.7 917.8 917.5 918.2 
 MLvl Date 01/17 02/19 03/03 04/01 05/25 06/30 07/28 08/19 09/02 10/28 11/07 12/17 
 MLvl Time 07:30 23:42 22:39 00:52 13:52 22:12 23:45 22:29 15:26 22:30 18:39 19:24 
Yearly Minimum Level:  917.46 on 11/07/08
 


Days Closed    0     0     3    20     8    10     0     0     0     0     0     0   
 
Max Temper 33.9  45.0  88.6  89.6   0.0  89.7  90.0   0.0   0.0   0.0   0.0   0.0  
 MTmp Date 01/09 02/09 03/27 04/01       06/12 07/07                               
 MTmp Time 12:49 12:09 08:48 20:57       15:57 18:53                               
Yearly Maximum Temperature:  90 on 07/07/08
 


Min Temper 32.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0  
 MTmp Date 01/27                                                                   
 MTmp Time 17:53                                                                   
Yearly Minimum Temperature:  32 on 01/27/08
   
Max Secchi  0.0   0.0   0.0   0.0   3.5   3.5   3.5   9.0   7.0  10.0   0.0   0.0  


 MSec Date                         05-30 06-01 07-19 08-30 09-18 10-03             
 MSec Time                         12:30 12:04 08:58 10:09 13:58 13:48             
Yearly Maximum Secchi:  10 on 10-03
 
Min Secchi  0.0   0.0   0.0   0.0   3.5   0.2   3.0   3.5   5.0   4.0   0.0   0.0  
 MSec Date                         05-30 06-13 07-04 08-05 09-06 10-20             


 MSec Time                         12:30 13:02 08:24 15:45 12:53 14:12             
Yearly Minimum Secchi:  0.2 on 06-13
 Most Recent Secchi:  4 on 10-20
  This table last updated 00:58:02 on 12-31-2008

 

2007 Lake Zumbro Conditions Monthly Summaries


Month       Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
           2007  2007  2007  2007  2007  2007  2007  2007  2007  2007  2007  2007  
Max Level  920.3 919.0 924.0 922.0 920.4 920.3 920.0 924.8 921.8 923.2 920.3 918.7  
 MLVL Date 01/03 02/03 03/14 04/01 05/25 06/24 07/14 08/20 09/30 10/02 11/01 12/19  
 MLVL Time 08:39 23:21 14:27 17:40 20:31 00:30 04:27 00:40 23:42 09:41 00:18 13:39 

Yearly Maximum Level:  924.75 on 08/20/07 ( 3.7feet over 'flood' stage)
  

Min Level  918.2 917.9 918.4 919.6 919.4 919.3 919.4 919.2 919.6 920.3 918.0 918.2 
 MLvl Date 01/31 02/26 03/03 04/29 05/18 06/13 07/26 08/14 09/06 10/31 11/20 12/24 
 MLvl Time 23:21 02:21 18:42 16:33 12:40 00:21 18:39 00:42 13:39 15:42 22:30 01:39 
Yearly Minimum Level:  917.94 on 02/26/07
 

Days Closed    0     0    19     7     0     0     0    12    10    27     0     0   
 

Max Temper 37.1  34.9  55.7  61.3  69.4  77.9  80.3  80.7  72.5  66.1  50.0  34.1  
 MTmp Date 01/02 02/22 03/27 04/29 05/11 06/16 07/08 08/02 09/07 10/08 11/01 12/02 
 MTmp Time 14:51 13:57 21:57 18:50 16:50 19:56 18:52 15:47 17:56 00:55 01:52 13:55 
Yearly Maximum Temperature:  80.7 on 08/02/07
 

Min Temper 33.2  32.6  32.8  37.5  48.9  53.7  59.1  60.9  57.6  46.5  32.9  32.7  

 MTmp Date 01/19 02/14 03/04 04/06 05/29 06/04 07/14 08/19 09/30 10/28 11/29 12/11 
 MTmp Time 23:50 07:55 16:50 22:55 10:56 13:49 09:57 09:57 13:54 03:51 06:51 01:54 
Yearly Minimum Temperature:  32.6 on 02/14/07
   
Max Secchi  0.0   0.0   0.0   0.0   6.0   3.5   5.0   4.0   4.0   2.5   3.0   0.0  

 MSec Date                         05-24 06-14 07-21 08-01 09-16 10-24 11-02       

 MSec Time                         10:29 12:52 09:51 13:08 15:10 15:51 12:46       
Yearly Maximum Secchi:  6 on 05-24
 
Min Secchi  0.0   0.0   0.0   0.0   6.0   2.5   2.5   0.4   1.5   0.5   3.0   0.0  
 MSec Date                         05-24 06-20 07-01 08-20 09-01 10-01 11-02       

 MSec Time                         10:29 14:19 13:23 16:28 17:25 18:14 12:46       

Yearly Minimum Secchi:  0.4 on 08-20
 Most Recent Secchi:  3 on 11-02
  This table last updated 00:58:01 on 12-31-2007

 

2006 Lake Zumbro Conditions Monthly Summaries

Month       Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
           2006  2006  2006  2006  2006  2006  2006  2006  2006  2006  2006  2006  
Max Level  918.7 918.7 921.7 921.9 920.6 920.8 920.1 921.7 920.5 920.4 919.5 919.4  
 MLVL Date 01/09 02/03 03/31 04/01 05/03 06/11 07/20 08/25 09/06 10/30 11/30 12/01  
 MLVL Time 00:42 00:33 23:32 12:15 05:45 16:39 08:27 17:37 11:36 11:36 17:31 00:24 

Yearly Maximum Level:  921.9  on 04/01/06 ( .9 feet over 'flood' stage)
  
Min Level  918.3 917.8 918.4 919.8 919.3 919.3 919.0 919.2 919.4 918.9 918.4 917.9 
 MLvl Date 01/18 02/09 03/22 04/29 05/28 06/22 07/17 08/04 09/01 10/03 11/15 12/07 
 MLvl Time 00:21 05:30 01:36 14:35 20:50 06:21 22:24 23:18 17:18 15:33 21:15 19:18 
Yearly Minimum Level:  917.81  on 02/09/06
 

Days Closed    0     0     2    11     0     0     0     3     0     0     0     0   
 
Max Temper 35.8  36.2  40.3  59.0  72.5  78.6  84.6  84.6  73.2  61.3  47.0  42.1  
 MTmp Date 01/03 02/04 03/31 04/24 05/29 06/03 07/18 08/07 09/01 10/06 11/09 12/31 
 MTmp Time 23:56 10:56 20:56 16:56 12:56 17:56 15:56 08:56 18:56 16:56 03:56 21:56 
Yearly Maximum Temperature:  84.6  on 07/18/06
 

Min Temper 33.5  34.1  34.3  39.0  50.7  64.9  75.5  65.7  55.3  45.6  40.3  36.8  
 MTmp Date 01/04 02/09 03/08 04/02 05/01 06/16 07/01 08/26 09/30 10/30 11/30 12/11 
 MTmp Time 10:58 17:56 07:56 11:56 11:56 07:56 07:56 07:56 03:56 05:56 23:56 12:56 
Yearly Minimum Temperature:  33.5  on 01/04/06
   
Max Secchi  0.0   0.0   0.0   0.0   4.0   9.0  10.0   6.0  10.0   8.0   0.0   0.0  

 MSec Date                         05-31 06-06 07-28 08-12 09-13 10-27             
 MSec Time                         15:14 13:36 08:14 12:45 13:17 12:08             
Yearly Maximum Secchi:  10  on 07-28
 
Min Secchi  0.0   0.0   0.0   0.0   4.0   3.0   3.0   0.7   2.5   4.0   0.0   0.0  
 MSec Date                         05-31 06-18 07-03 08-26 09-05 10-06             

 MSec Time                         15:14 11:07 11:48 20:18 13:23 13:30             
Yearly Minimum Secchi:  .7  on 08-26
 Most Recent Secchi:  8  on 10-27
  This table last updated 00:56:02 on 01-06-2007

 

2005 Lake Zumbro Conditions Monthly Summaries

Month       Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec

           2005  2005  2005  2005  2005  2005  2005  2005  2005  2005  2005  2005  
Max Level  918.8 921.4 922.7 921.6 920.9 920.6 920.3 920.1 920.7 920.5 919.9 918.8  
 MLVL Date 01/08 02/14 03/28 04/01 05/20 06/08 07/26 08/18 09/26 10/05 11/01 12/04  
 MLVL Time 00:21 22:21 21:33 00:42 01:33 15:35 07:42 13:48 22:24 23:45 00:42 17:48 

Yearly Maximum Level:  922.69  on 03/28/05 ( 1.6 feet over 'flood' stage)
  
Min Level  918.2 918.1 918.0 919.6 919.5 919.3 919.5 919.3 919.5 919.4 918.1 918.1 

 MLvl Date 01/19 02/27 03/19 04/27 05/06 06/21 07/13 08/19 09/06 10/27 11/09 12/20 
 MLvl Time 00:46 14:41 23:21 16:46 00:30 02:44 15:30 22:33 23:27 23:36 05:48 23:35 
Yearly Minimum Level:  918  on 03/19/05
 

Days Closed    0     3     6     3     0     0     0     0     0     0     0     0   
 
Max Temper 34.9  36.1  45.6  58.2  68.6  80.7  83.4  81.8  76.3  63.9  50.4  37.1  

 MTmp Date 01/17 02/19 03/31 04/21 05/30 06/23 07/23 08/05 09/01 10/04 11/01 12/01 
 MTmp Time 21:56 14:56 23:56 20:56 22:56 21:56 02:56 21:56 15:56 20:56 00:56 03:56 
Yearly Maximum Temperature:  83.4  on 07/23/05
 

Min Temper 31.9  32.9  33.7  44.6  46.3  67.5  74.0  72.4  62.0  49.3  37.1  33.5  
 MTmp Date 01/09 02/01 03/24 04/01 05/03 06/01 07/04 08/26 09/30 10/30 11/30 12/30 

 MTmp Time 16:56 19:56 21:56 10:56 04:56 12:21 08:56 12:56 12:56 18:56 22:56 10:25 
Yearly Minimum Temperature:  31.9  on 01/09/05
   
Max Secchi  0.0   0.0   0.0   0.0   4.5   5.5   8.0   7.0  10.0   7.0   0.0   0.0  

 MSec Date                         05-31 06-06 07-12 08-02 09-06 10-12             
 MSec Time                         12:00 12:00 13:00 10:55 13:46 14:38             

Yearly Maximum Secchi:  10  on 09-06
 
Min Secchi  0.0   0.0   0.0   0.0   2.5   2.5   4.5   5.5   4.0   2.5   0.0   0.0  
 MSec Date                         05-21 06-10 07-05 08-05 09-14 10-07             

 MSec Time                         12:00 12:00 13:43 09:05 10:57 10:16             
Yearly Minimum Secchi:  2.5  on 05-21
 Most Recent Secchi:  4  on 10-26
  This table last updated 00:56:01 on 12-31-2005


 

2004 Lake Zumbro Conditions Monthly Summaries

Month       Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec
           2004  2004  2004  2004  2004  2004  2004  2004  2004  2004  2004  2004  
Max Level  918.8 919.0 921.0 920.0 921.2 924.1 921.0 920.0 925.4 920.3 918.8 918.7  
 MLVL Date 01/21 02/09 03/02 04/19 05/24 06/10 07/12 08/31 09/16 10/01 11/21 12/16  
 MLVL Time 12:47 15:42 17:39 11:43 17:40 21:40 23:45 06:21 09:44 21:30 17:21 22:42 

Yearly Maximum Level:  925.36  on 09/16/04 ( 4.3 feet over 'flood' stage)
  
Min Level  918.2 918.2 918.4 918.3 919.6 919.7 919.6 919.5 919.5 918.7 918.3 918.2 
 MLvl Date 01/22 02/04 03/24 04/03 05/10 06/28 07/27 08/21 09/13 10/31 11/14 12/20 
 MLvl Time 22:45 20:46 22:27 09:46 06:39 15:30 17:44 16:24 22:46 23:39 05:21 23:44 
Yearly Minimum Level:  918.16  on 12/20/04
 

Days Closed    0     0     0     0     3    13     2     0     7     0     0     0   
 
Max Temper 37.8  35.2  50.4  58.8  65.0  74.5  80.5  80.1  76.5  61.7  53.0  38.2  
 MTmp Date 01/01 02/01 03/29 04/23 05/22 06/09 07/22 08/03 09/04 10/01 11/01 12/12 
 MTmp Time 10:56 00:56 17:56 20:56 21:56 01:56 17:56 12:56 11:56 00:56 00:56 15:56 
Yearly Maximum Temperature:  80.5  on 07/22/04
 

Min Temper 35.1  34.6  34.6  47.5  54.0  60.0  69.6  67.7  59.3  45.5  37.0  33.6  
 MTmp Date 01/29 02/09 03/01 04/02 05/02 06/05 07/01 08/22 09/27 10/19 11/30 12/28 
 MTmp Time 14:56 12:56 00:56 06:56 11:56 00:56 00:56 11:56 14:56 08:56 04:56 07:56 
Yearly Minimum Temperature:  33.6  on 12/28/04
   
Max Secchi  0.0   0.0   0.0   0.0  10.0   3.0   5.5   7.0   9.0  10.0   0.0   0.0  

 MSec Date                         05-18 06-07 07-30 08-05 09-09 10-20             
 MSec Time                         13:26 07:37 10:26 12:37 12:47 12:13             
Yearly Maximum Secchi:  10  on 05-18
 
Min Secchi  0.0   0.0   0.0   0.0   1.5   0.3   1.0   2.5   0.2   2.0   0.0   0.0  
 MSec Date                         05-24 06-11 07-13 08-10 09-16 10-31             

 MSec Time                         18:42 12:23 10:56 18:14 15:07 12:13             
Yearly Minimum Secchi:  .2  on 09-16
 Most Recent Secchi:  2  on 10-31
  This table last updated 00:56:01 on 12-31-2004