November 2009 Climatic Summary

November was a very warm month, with temperatures averaging 7 to 9 degrees above normal. All locations reported above normal temperatures. Spearfish was the warm spot averaging 13.2 degrees above normal. The 47.3 degree average temperature at Spearfish was the warmest November on record, breaking the old record of 46.6 degrees set in 1999. The cold spot was at Pactola Dam where temperatures averaged 5.9 degrees above normal.
November was very dry, with precipitation averaging just 20 to 30 percent of normal. Oelrichs and Oglala 1S were the only locations reporting above normal precipitation. The wettest area was across southwestern South Dakota where precipitation averaged 80 to 100 percent of normal. Elsewhere, precipitation generally averaged less than 20 percent of normal. The wet spot was at Oelrichs where precipitation was 265 percent of normal. The dry spots were Bison, Dupree, Faith and Colony, WY. where no precipitation was reported for the month. These four locations and Lemmon, Maurine 12SW, Spearfish and Redig 11NE all reported the driest November’s on record. The precipitation deficit for the month averaged 0.58 inches.
Snowfall was sparse in November. The Black Hills averaged only 3 to 7 inches. Across northwest South Dakota snowfall averaged 2 inches or less. Elsewhere, most locations on the plains of northeast Wyoming and western South Dakota reported no snow.

November storm summary...

No significant storms occurred in November.

 

LOCAL EXTREMES

Temperature Data

Rapid City

 

Lead

 

Gillette

 

 

Temperature

Date

Temperature

Date

Temperature 

Date

Maximum Temperature

77 degrees

6th

68 degrees

5th

73 degrees

5th

Minimum Temperature

15 degrees

16th

20 degrees

15th

11 degrees

14th

Precipitation Data

Rapid City

 

Lead

 

Gillette

 

Monthly Data

Amount

Data

Amount

Date

Amount

Date

Precipitation

0.17 inches

 

0.41 inches

 

0.05 inches

 

Snowfall

Trace

 

3.5 inches

 

0.5 inches

 

 

 

 

 

 

 

 

Daily Data

 

 

 

 

 

 

Maximum Precipitation

0.09 inches

12th

0.28 inches

25th

0.04 inches

25th

Maximum Snowfall

Trace

Several Days

3.0 inches

25th

0.5 inches

25th

REGIONAL EXTREMES

Temperature Data

 

Western South Dakota

 

 

Northeastern Wyoming

 

 

Temperature

Site

Date

Temperature

Site

Date

Maximum Temperature

81 degrees

Midland

6th

75 degrees

Colony

6th

Minimum Temperature

6 degrees

Ladner 9SW

15th

7 degees

Upton 14ENE

24th, 25th

Precipitation Data

 

Western South Dakota

 

 

Northeastern Wyoming

 

Monthly Data

Amount

Site

Date

Amount

Site

Date

Maximum Precipitation

0.82 inches

Oelrichs

 

0.13 inches

Devils Tower

 

Minimum Precipitation

0.0 inches 

Several Locations

 

0.00 inches

Colony
Weston 1E

 

Maximum Snowfall

3.5 inches

Lead

 

0.9 inches

Wright 12W

 

Minimum Snowfall

0.0 inches 

Several Locations

 

0.0 inches

Several Locations

 

 

 

 

 

 

 

 

Daily Data

 

 

 

 

 

 

Maximum Precipitation

0.60 inches

Oelrichs

1st

0.08 inches

Devils Tower

25th

Maximum Snowfall

3.0 inches

Lead
Bear Ridge

25th

0.7 inches

Upton 14ENE

25th

MONTHLY RECORDS

LOCATION

DATE

NEW RECORD

OLD RECORD

DATE

Bison

November

0.00 inches precipitation

Trace of precipitation

Last 2004

Colony, Wy

November

0.00 inches precipitation

0.00 inches precipitation

1917

Dupree

November

0.00 inches precipitation

0.00 inches precipitation

Last 1949

Faith

November

0.00 inches precipitation

0.00 inches precipitation

1952

Lemmon

November

Trace of precipitation

Trace of precipitation

Last 2006

Maurine 12SW

November

Trace of precipitation

Trace of precipitation

Last 1997

Spearfish

November

0.11 inches precipitation

0.12 inches precipitation

1963

Spearfish

November

47.3 degree average temperature

46.6 degree average temperature

1999

Redig 11NE

November

Trace of precipitation

Trace of precipitation

Last 2004

  

 Return to Climate Summaries

 

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