June 2006 Climatic Summary

The first week of June saw above normal temperatures and mainly dry weather. On June 7 severe thunderstorms produced damaging winds and large hail over portions of northeastern Wyoming and in southern South Dakota. From June 8 through June 12 an upper level trough brought cooler weather and scattered showers and thunderstorms. On June 10 an isolated severe thunderstorm produced a brief Tornado in Shannon County and large hail in Bennett County. From June 13 through the end of the month above normal temperatures returned to the region along with occasional outbreaks of severe weather. Large hail was reported in southwestern South Dakota on June 13. A significant severe weather event produced numerous reports of wind damage and large hail on the South Dakota plains on June 14.

From June 19 through June 21 severe thunderstorms produced scattered reports of large hail and damaging winds across northeastern Wyoming and in southwestern and south central South Dakota. From June 23 through the end of the month dry weather and well above normal temperatures returned to the region. Isolated severe weather was reported in northeastern Wyoming on June 23 and June 30.

Temperatures averaged 2 to 4 degrees above normal in June. Every station reported above normal temperatures for the month. Spearfish reported the warmest June on record with an average temperature of 70.0 degrees. Averages ranged from 6.7 degrees above normal at Camp Crook to 0.5 degrees above normal in Winner.

June was a very dry month across western South Dakota and northeastern Wyoming. Precipitation averaged only 30 to 50 percent of normal, with many areas in northeastern Wyoming and the Black Hills receiving only 20 to 30 percent of normal precipitation. Precipitation ranged from 171 percent of normal at Mission 14S to only 5 percent of normal at Gillette, Wyoming.

LOCAL EXTREMES

Temperature Data

Rapid City

 

Lead

 

Gillette

 

 

Temperature

Date

Temperature

Date

Temperature 

Date

Maximum Temperature

97 degrees

14th

92 degrees

5th

97 degrees

13th,  29th

Minimum Temperature

49 degrees

10th,  11th

41 degrees

25th

40 degrees

18th

Precipitation Data

Rapid City

 

Lead

 

Gillette

 

Monthly  Data

Amount

Data

Amount

Date

Amount

Date

Precipitation

0.69 inches

 

0.87 inches

 

0.12 inches

 

Snowfall

0.0 inches

 

0.0 inches

 

0.0 inches

 

 

 

 

 

 

 

 

Daily Data

 

 

 

 

 

 

Maximum Precipitation

0.34 inches

19th

0.58 inches

23rd

0.10 inches

10th

Maximum Snowfall

0.0 inhces

 

0.0 inches

 

0.0 inches

 

REGIONAL EXTREMES

Temperature Data

 

Western South Dakota

 

 

Northeastern Wyoming

 

 

Temperature

Site

Date

Temperature

Site

Date

Maximum Temperature

105 degrees

Midland

30th

101 degrees

Newcastle

15th

Minimum Temperature

32 degrees

Medicine Mtn.

25th

34 degrees

Upton  14ENE

1st,  2nd

Precipitation Data

 

Western South Dakota

 

 

Northeastern Wyoming

 

Monthly Data

Amount

Site

Date

Amount

Site

Date

Maximum Precipitation

5.36 inches

Mission 14S

 

1.78 inches 

Dillinger

 

Minimum Precipitation

0.40 inches

Newell

 

0.12 inches

Gillette 4SE

 

Maximum Snowfall

0.0 inches

 

 

0.0 inches

 

 

Minimum Snowfall

0.0 inches

 

 

0.0 inches

 

 

 

 

 

 

 

 

 

Daily Data

 

 

 

 

 

 

Maximum Precipitation

2.56 inches

Mission 14S

21st

1.41 inches

Dillinger

23rd

Maximum Snowfall

0.0 inches

 

 

0.0 inches

 

 

MONTHLY RECORDS

LOCATION

DATE

NEW RECORD

OLD RECORD

DATE

Spearfish

June

70.0 degree Avg. Temperature

68.8 degrees

1977

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