FEBRUARY 2006 CLIMATIC SUMMARY

 
The first nine days of February saw a continuation of January's mild temperatures and dry weather as temperatures averaged six to ten degrees above normal. On February 10, colder air moved into northeastern Wyoming and western South Dakota followed by frigid Arctic air February 15 through February 18. Low temperatures fell to 20 to 30 below zero on February 17 and 18 and high temperatures remained below zero over most of the area on February 17. Rochford recorded the coldest temperature of the season when the mercury fell to 39 degrees below zero on the morning of February 18. During this time, two snowstorms dropped one to two feet of snow in the northern Black Hills and Bear Lodge Mountains. Temperatures began to moderate on February 20 with highs reaching the 60s and even a few 70s by the last two days of the month.
 
Temperatures averaged slightly below normal in February. Averages ranged from 2.1 degrees above normal at Redig to 5.4 degrees below normal at Pactola Dam.
 
Precipitation averaged 15 to 25 percent below normal in February with near normal snowfall. The Bear Lodge Mountains and northern Black Hills saw above normal precipitation and snowfall, while the plains of western South Dakota and northeastern Wyoming saw below normal to near normal precipitation.  Precipitation ranged from 279 percent of normal at Ladner 9 SW to 7.5 percent of normal at Colony.
LOCAL EXTREMES

Temperature Data

Rapid City

 

Lead

 

Gillette

 

 

Temperature

Date

Temperature

Date

Temperature 

Date

Maximum Temperature

68 degrees

28th

57 degrees

28th

64 degrees

27th

Minimum Temperature

-16 degrees

17th, 18th

-22 degrees

18th

-22 degrees

18th

Precipitation Data

Rapid City

 

Lead

 

Gillette

 

Monthly  Data

Amount

Data

Amount

Date

Amount

Date

Precipitation

0.21 inches

 

3.03 inches

 

0.14 inches

 

Snowfall

5.8 inches

 

45.4 inches

 

4.0 inches

 

 

 

 

 

 

 

 

Daily Data

 

 

 

 

 

 

Maximum Precipitation

0.16 inches

15th

14.3 inches

10th

.04 inches

14th

Maximum Snowfall

3.6 inches

15th

0.63 inches

10th

1.0 inches

5th, 14th, 15th

REGIONAL EXTREMES

Temperature Data

 

Western South Dakota

 

 

Northeastern Wyoming

 

 

Temperature

Site

Date

Temperature

Site

Date

Maximum Temperature

78 degrees

Winner

28th

68 degrees

Weston

27th

Minimum Temperature

-39 degrees

Rochford

18th

-34 degrees

Dillinger

18th

Precipitation Data

 

Western South Dakota

 

 

Northeastern Wyoming

 

Monthly Data

Amount

Site

Date

Amount

Site

Date

Maximum Precipitation

3.03 inches

Lead

 

1.14 inches

Upton 14 ENE

 

Minimum Precipitation

0.03 inches

Harding 3 SE

 

0.03 inches

Colony

 

Maximum Snowfall

45.4 inches

Lead

 

27.5 inches

Sundance

 

Minimum Snowfall

0.5 inches

Plainview

 

2.0 inches

Colony, Moorcroft

 

 

 

 

 

 

 

 

Daily Data

 

 

 

 

 

 

Maximum Precipitation

0.70 inches

Ardmore 2N

15th

0.34 inches

Newcastle

16th

Maximum Snowfall

14.3 inches

Lead

10th

10.0 inches

Sundance

10th

MONTHLY RECORDS

LOCATION

DATE

NEW RECORD

OLD RECORD

DATE

Winner

4/28/2006

78 degrees

77 degrees

02/24/1946

Return to Climate Summaries 

 


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