June 2011 Climatic Summary
June temperatures were slightly below normal, averaging 1 to 2 degrees below normal. Deadwood 2NE was the warm spot averaging 0.7 degrees above normal. The cold spot was at Mission 14S where temperatures averaged 4.7 degrees below normal.
Precipitation in June averaged 5 to 15 percent above normal. The wettest areas were across central and south central South Dakota where precipitation averaged 200 to 250 percent of normal. The driest areas were across northeast Wyoming, the Black Hills and southwest South Dakota where precipitation averaged 45 to 65 percent of normal. The wet spot was at Wood where precipitation was 291 percent of normal. Redig 11N was the dry spot with only 45 percent of normal precipitation. The precipitation surplus for the month averaged 0.28 inches.
The only snow in June was a dusting to an inch that fell above 6000 feet in the northern Black Hills.
June storm summary...
June 2…A weak upper level disturbance brought isolated severe thunderstorms to the western South Dakota plains. Golf ball size hail fell in Shannon County, with nickel size hail in Jackson and Ziebach Counties. Winds gusted to 62 mph in Philip.
June 6…A weak upper level disturbance brought severe thunderstorms to the plains of west-central and south central South Dakota. There were numerous reports of winds of 60 mph or greater. The strongest wind gust reported was 70 mph, 14 miles south of Mission in Todd County. Quarter size hail was reported in Enning and 9 miles north of Box Elder in Meade County.
June 8…An isolated severe thunderstorm produced quarter size hail 6 miles south of Rochelle in Weston County in northeast Wyoming.
June 11…A weak upper level disturbance brought isolated severe thunderstorms to western South Dakota. A severe thunderstorm produced quarter size hail 18 miles north of Belle Fourche in Butte County. Another severe thunderstorm produced 60 mph winds 11 miles south of Oelrichs in Fall River County and quarter size hail in Oglala in Shannon County. Minor flooding of County Road 3 was reported in southeast Fall River County. Quarter size hail was also reported 5 miles west of Kadoka in Jackson County.
June 12…A strong upper level disturbance brought large hail and damaging winds to northeast Wyoming, the Black Hills and northwest South Dakota. Winds gusted to 79 mph, 26 miles northwest of Castle Rock in Harding County. Wind gusts of 70 mph were also reported at Devils Tower in Crook County, and 30 miles south of Camp Crook in Butte County. The largest hail reported was the size of half dollars at Devils Tower in Crook County and in downtown Gillette in Campbell County.
June 13…An isolated severe thunderstorm dropped quarter size hail at Nemo in Lawrence County, and 3 miles southeast of Rochford in Pennington County.
June 14…An upper level disturbance brought severe weather to west central and south central South Dakota. A small tornado touched down 15 miles west of Carter in Todd County. The largest hail reported was the size of golf balls at Clearfield in Tripp County. Winds gusted to 60 mph, 10 miles north of New Underwood in Meade County.
June 16…An upper level disturbance brought large hail and damaging winds to south central South Dakota. The largest hail reported was the size of baseballs, 5 miles northeast of St. Francis in Todd County. Winds gusted to 60 mph, 19 miles southeast of St. Francis in Todd County. Heavy rainfall of 2 to 4 inches in Todd County damaged several county roads.
June 18…An isolated severe thunderstorm produced 60 mph winds in Oelrichs in Fall River County. Another isolated severe thunderstorm produced quarter size hail 9 miles northeast of Thunder Butte in Ziebach County.
June 20-21…A deep upper level low pressure system moved through the Central Plains bringing heavy rains to western South Dakota. Rainfall totals of 1 to 2 inches fell over far western South Dakota with 2 to 5 inches falling over central South Dakota. Numerous secondary roads were reported washed out due to flooding across south central South Dakota.
June 24…A strong upper level disturbance brought widespread severe weather to western South Dakota. There were numerous reports of large hail and winds in excess of 60 mph. The largest hail reported was 3 inches in diameter, 9 miles southwest of Spearfish, and 2.5 inches in diameter, 2 miles south of Rapid City. The strongest wind gusts reported were 75 mph, 9 miles northeast of Belvidere in Jackson County and 2 miles west of Rapid City. Flash flooding was also reported in Jackson County where several feet of water were reported on highway 63 north of exit 170 on Interstate 90.
June 25…Severe thunderstorms developed over the Black Hills and from southwest to west central South Dakota producing large hail and damaging winds. The largest hail reported was the size of golf balls in Hill City, and 10 miles east of Sturgis. The strongest winds reported were 62 mph, 3 miles east of Philip.
June 26…An upper level disturbance brought scattered severe thunderstorms to western South Dakota. The largest hail reported was the size of golf balls in Rapid Valley in Pennington County and 11 miles southeast of Oelrichs in Fall River County. The strongest wind gusts reported were 73 mph at Buffalo in Harding County, and a 70 mph gust 4 miles south of Wasta in Pennington County.
June 30…An upper level disturbance brought scattered severe thunderstorms to southwest and south central South Dakota. The largest hail reported was the size of golf balls in Oglala in Shannon County. The strongest wind gusts were 70 mph at Mission in Todd County, and 1 mile south of Oglala in Shannon County. An isolated severe thunderstorm brought 1 inch diameter hail and 60 mph winds to Rockypoint in Crook County.
|LOCAL EXTREMES||Rapid City||Lead||Gillette|
|Max. Temp.||98 degrees||29th||90 degrees||29th||96 degrees||29th|
|Min. Temp.||39 degrees||1st||37 degrees||4th, 18th||32 degrees||4th|
|Precipitation||3.84 inches||2.93 inches||1.29 inches|
|Snowfall||0.0 inches||0.0 inches||0.0 inches|
|Max. Precipitation||0.87 inches||25th||0.60 inches||10th||0.80 inches||10th|
|Max. Snowfall||0.0 inches||0.0 inches||0.0 inches|
|REGIONAL EXTREMES||Western South Dakota||Northeast Wyoming|
|Max. Temp.||103 degrees||Belle Fourche||29th||99 degrees||Colony||29th|
|Min. Temp.||31 degrees||Lodgepole 5SW||1st||32 degrees||Gillette 4SE||4th|
|32 degrees||Wright 12W||4th|
|Precipitation||Western South Dakota||Northeast Wyoming|
|Max. Precipitation||8.71 inches||Mission||3.59 inches||Devils Tower|
|Min. Precipitation||1.30 inches||Edgemont||1.29 inches||Gillette 4SE|
|Max. Snowfall||0.0 inches||0.0 inches|
|Min. Snowfall||0.0 inches||0.0 inches|
|Max. Precipitation||3.51 inches||Kirley 6N||21st||1.56 inches||Devils Tower||10th|
|Max. Snowfall||0.0 inches||0.0 inches|
|MONTHLY RECORDS||WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING|
|LOCATION||DATE||NEW RECORD||OLD RECORD||DATE|
|Wood||June||8.13 inches precipitation||8.02 inches precipitation||1948|