Very Dry and Warm November

November 2011 across central and northeast South Dakota along with west central Minnesota was much drier than normal along with warmer than normal temperatures.  The monthly average temperatures were anywhere from 1 to 4 degrees above normal across the region.  In November, snow cover and the James Valley’s affect on temperatures showed up at Kennebec, Pierre, and Aberdeen.  Both Pierre and Kennebec received snowfall on the 19th with Pierre receiving nearly 10 inches.  This snow cover helped bring some cold temperatures to both locations.  The low temperature departures from normal at Pierre were from minus 10 to around 15 degrees from the 19th through the 22nd.   The daytime highs were also affected by the snow cover at Pierre with highs ranging from 24 to 33 degrees from the 19th through the 22nd.  Despite having no snow cover for November, Aberdeen still had slightly below normal low temperatures for the month.  The drainage effect of the colder air at night in the James Valley contributed to Aberdeen receiving some decent low temperatures for the month.   The lack of cloud cover for November also played a big role across the region for both high and low temperatures.   Normally, the area would be experiencing quite a bit of low stratus clouds throughout the month. The lack of cloud cover affected both high and low temperatures across the region.  During the day, the abundant sunshine combined with the lack of snow cover in some locations, allowed the temperatures to warm up nicely, while the lack of clouds allowed the temperatures to cool off quickly at night. 

NOVEMBER 2011

       

Temperature Data

Aberdeen

Sisseton

Wheaton

Watertown

Warmest Temperature / Date

59 / 5th, 11th

59 / 12th, 24th

62 / 13th

58 / 12th, 24th

Coldest Temperature / Date

-2 / 20th

-3 / 20th

2 / 20th, 21st

-10 / 20th

Average High / Departure from Normal

44.3 / +4.7

44.6 / +4.4

44.3 / +5.7

43.3 / +4.3

Average Low / Departure from Normal

18.7 / -0.2

23.3 / +1.8

22.2 / +1.8

21.6 / +1.0

Monthly Average / Departure from Normal

31.5 / +2.2

33.9 / +3.1

33.2 / +3.7

32.5 / +2.7

Precipitation Data

       

Monthly Precipitation / Departure from Normal

0.03 / -0.70

0.18 / -0.40

0.13 / -1.00

0.33 / -0.43

Monthly Snowfall / Departure from Normal

0.1 / -6.9

0.7 / -6.6

0.6 / -4.0

4.0 / -0.9

Most Precipitation in 24 hours / Date

0.01 / 19th

0.10 / 19th

0.08 / 20th

0.25 / 19th

Most Snow in 24 hours / Date

0.1 / 19th

0.7 / 19th

0.6 / 20th

4.0 / 19th

         

Temperature Data

Pierre

Kennebec

Mobridge

Timber Lake

Warmest Temperature / Date

64 / 11th

68 / 1st, 24th

62 / 11th

61 / 1st, 23rd

Coldest Temperature / Date

4 / 20th

-4 / 20th

4 / 20th

0 / 20th

Average High / Departure from Normal

46.5 / +2.4

50.4 / +4.9

45.7 / +2.9

45.3 / +3.4

Average Low / Departure from Normal

22.0 / -1.3

21.5 / -.1.1

21.2 / +0.1

21.7 / +0.5

Monthly Average / Departure from Normal

34.3 / +0.6

36.0 /  +2.0

33.4 / +1.5

33.5 / +1.9

Precipitation Data

       

Monthly Precipitation / Departure from Normal

0.61 / -0.09

0.40 / -0.32

0.03 / -0.45

Trace / -0.61

Monthly Snowfall / Departure from Normal

9.5 / +4.1

2.0 / -4.3

0.4 / -4.3

0.4 / -5.4

Most Precipitation in 24 hours / Date

0.57 / 19th

0.10 / 19th

0.02 / 19th

Trace

Most Snowfall in 24 hours / Date

9.5 / 19th

2.0 / 19th

0.4 / 19th

0.4 / 19th



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