July 22

Morning surface water temperatures on Lake Monticello are still about 89 degrees and water levels typically fluctuate frequently. The 99 end is clear but there is a slight stain near the dam. 

July 9

Morning surface water temperatures on Lake Monticello are 89 degrees and water levels typically fluctuate frequently. At least the 99 end is clear but we don’t have a report from the lower end. 

July 2

Morning surface water temperatures on Lake Monticello are in the upper 80s and water levels typically fluctuate frequently. 

June 18

Morning surface water temperatures on Lake Monticello are in the low to mid-80s and water levels typically fluctuate frequently. 

June 11

Morning surface water temperatures on Lake Monticello are around 80 degrees on the 99 end and warmer near the reactor.  The lake is clear and water levels typically fluctuate frequently. 

May 29

Morning surface water temperatures on Lake Monticello are around 78 degrees on the 99 end.  Water levels typically fluctuate frequently. 

May 21

Morning surface water temperatures on Lake Monticello are around 80 degrees and water levels typically fluctuate frequently. 

May 15

Morning surface water temperatures on Lake Monticello are in the mid-70s and water levels typically fluctuate frequently. 

May 8

Morning surface water temperatures on Lake Monticello are in the mid-70s or higher, and water levels typically fluctuate frequently. 

May 1

Morning surface water temperatures on Lake Monticello are in the low to mid-70s. Water levels typically fluctuate frequently. 

April 24

Morning surface water temperatures on Lake Monticello are in the low 70s. Water levels typically fluctuate frequently. 

April 10

Morning surface water temperatures on Lake Monticello range from about 65-70 after some cooler temperatures and rain. Water levels typically fluctuate frequently.

April 3

Morning surface water temperatures on Lake Monticello are around 65 at the 99 end and in the upper 60s by the power station. The lake is fairly clear and water levels typically fluctuate frequently. 

March 25

Morning surface water temperatures on Lake Monticello are around 57 at the 99 end and 63 by the dam. Both ends of the lake are stained, with the dam a bit dirtier, and water levels typically fluctuate frequently. 

March 19

Morning surface water temperatures continue to climb on Lake Monticello, with most of the lake 60 degrees or above. Water levels typically fluctuate frequently. 

March 12

Morning surface water temperatures continue to climb on Lake Monticello, with upper 50s to lower 60s now common. Water levels typically fluctuate frequently. 

March 6

Morning surface water temperatures are around 56-57 on the 99 end and 62-64 near the power plant. Water levels typically fluctuate frequently. 

February 26

Morning surface water temperatures are in the mid- to upper 50s on most of Lake Monticello, with the warmest water near the power plant. Water levels typically fluctuate frequently. 

February 19

Morning surface water temperatures are about 52-53 on the 99 end, while they are as warm as 64 close to the power plant. The upper end of the lake is slightly stained while the lower end is heavily stained. Water levels typically fluctuate frequently. 

February 20

Lake Murray water levels are up to 357.90 (full pool is 360.00) and up the lake is muddy but just beginning to clear, with the mud-line around Buffalo Creek. Morning surface water temperatures are around 50 degrees. 

February 12

Morning surface water temperatures are about 54 away from the power station, and water levels typically fluctuate frequently. 

February 5

Morning surface water temperatures are about 52-54 over most of the lake , and water levels typically fluctuate frequently. The water color is about perfect for fishing with roughly three feet of visibility. 

January 28

Morning surface water temperatures are about 48 on the Highway 99 end but warmer towards the power plant, and water levels typically fluctuate frequently. The water has cleaned up some but is still not clear.