APRIL 2005 CLIMATIC SUMMARY

The month of April was another mild month as high pressure dominated the weather most of the month. Two significant storms brought much needed precipitation to the region. A storm on the 11th brought 3 to 5 inches of snow to central and south central South Dakota. On the 21st, a powerful storm dropped 8 to 15 inches of snow over the Black Hills and northeastern Wyoming, with 1 to 3 inches of rain falling on the plains of western South Dakota.

Temperatures averaged 1 to 3 degrees above normal, with only 3 locations reporting below normal temperatures. Lemmon and Spearfish were the hot spots averaging 4.1 degrees above normal, while Milesville 5NE was the cool spot averaging 3.2 degrees below normal.

Overall, precipitation averaged 10 to 20 percent above normal. South central South Dakota was very wet with rainfall 150 to 250 percent of normal, while in the Black Hills, Bear Lodge Mountains and northwestern South Dakota, rainfall was 30 to 50 percent below normal. Snowfall averaged 40 to 60 percent below normal, with only 4 locations reporting above normal snowfall. Redig 11NE was the dry spot receiving only 42 percent of normal precipitation, while Mission 14S was the wet spot receiving 266 percent of normal precipitation.

LOCAL EXTREMES

Temperature Data

Rapid City

 

Lead

 

Gillette

 

 

Temperature

Date

Temperature

Date

Temperature 

Date

Maximum Temperature

86 degrees

17th

76 degrees

8th

79 degrees

17th 

Minimum Temperature

23 degrees

28th 

16 degrees

29th 

20 degrees

29th  

Precipitation Data

Rapid City

 

Lead

 

Gillette

 

Monthly  Data

Amount

Data

Amount

Date

Amount

Date

Precipitation

1.72 inches

 

3.55 inches

 

2.54 inches

 

Snowfall

Trace

 

10.9 inches

 

17.0 inches

 

 

 

 

 

 

 

 

Daily Data

 

 

 

 

 

 

Maximum Precipitation

1.03 inches

21st  

1.26 inches

21st 

1.40 inches

21st  

Maximum Snowfall

Trace

21st, 27th and 30th  

8.8 inches

21st 

14.0 inches

21st 

REGIONAL EXTREMES

Temperature Data

 

Western South Dakota

 

 

Northeastern Wyoming

 

 

Temperature

Site

Date

Temperature

Site

Date

Maximum Temperature

89 degrees

Opal

17th

85 degrees

Colony

8th

Hereford 12SW

18th

17th

Minimum Temperature

1 degree

Medicine Mtn

29th 

10 degrees

Upton 14ENE

30th

Rochford

29th 

Precipitation Data

 

Western South Dakota

 

 

Northeastern Wyoming

 

Monthly Data

Amount

Site

Date

Amount

Site

Date

Maximum Precipitation

5.45 inches

Mission

 

3.46 inches

Echeta

 

Minimum Precipitation

0.36 inches

Ludlow

 

0.60 inches

Recluse 11NNW

 

Maximum Snowfall

10.9 inches

Lead

 

17.0 inches

Gillette

 

Minimum Snowfall

0.0 inches

Several Locations

 

0.0 inches

Several Locations

 

 

 

 

 

 

 

 

Daily Data

 

 

 

 

 

 

Maximum Precipitation

3.14 inches

Martin

21st 

1.75 inches

Dillinger 

21st 

Maximum Snowfall

8.8 inches

Lead

21st 

15.0 inches

Echeta

21st 

MONTHLY RECORDS

LOCATION

DATE

NEW RECORD

OLD RECORD

DATE

Long Valley

04/21/2005

2.75 inches rainfall

2.00 inches

04/12/1970


Return to Climate Summaries


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.