November 2011 Climatic Summary
November temperatures were very warm, averaging 2 to 4 degrees above normal across the area. Well above average temperatures were found across the South Dakota plains, while abundant snow cover during the last half of the month kept temperatures across northeast Wyoming closer to average. The warmest location in November was Winner at 5.2 degrees above average. The coolest location was Wright 12W, which was 0.6 degrees below average.
Precipitation in November averaged around 80 percent of normal across the entire area. The driest areas were across the South Dakota plains, where precipitation averaged 20 to 50 percent of normal. Northwest South Dakota was very dry, averaging only 5 to 20 percent of normal. Lemmon only recorded 0.02 inches of precipitation in November. The wettest/snowiest areas were across northeast Wyoming, and the Black Hills in South Dakota. A significant snow storm dumped copious amounts of snow across northeast Wyoming and parts of South Dakota, with many locations picking up 150 to 300% of normal snowfall for November.
November storm summary...
November 4th/5th and the 15th – Windy conditions were observed across the area with no significant damage reported.
November 18th and 19th – A very strong winter storm crossed the area late on the 18th and through the 19th, dropping significant snow across much of the area. Snowfall amounts ranged from 10 to 20 inches across most parts of northeast Wyoming and the Black Hills, with a narrow strip of 4 to 8 inches of snow falling across eastern Pennington and Haakon counties. Lead received 23.9 inches of snow, while Wright 12W picked up 16 inches.
November 26th – Very windy conditions were observed across the area with no significant damage reported.
November 30th – Upslope enhance snowfall started late in the day and continued into December 1st. Multiple reports of over 6 inches were received.
|LOCAL EXTREMES||Rapid City||Lead||Gillette|
|Max. Temp.||69 degrees||4th||59 degrees||4th||64 degrees||1st|
|Min. Temp.||-7 degrees||19th||-2 degrees||20th & 21st||-1 degree||20th|
|Precipitation||0.71 inches||1.95 inches||0.87 inches|
|Snowfall||14.6 inches||23.9 inches||8.6 inches|
|Max. Precipitation||0.41||19th||0.5 inches||19th||0.27 inches||19th|
|Max. Snowfall||7.7 inches||18th||5.6 inches||19th||4.0 inches||19th|
|REGIONAL EXTREMES||Western South Dakota||Northeast Wyoming|
|Max. Temp.||79 degrees||Wasta||1st||71 degrees||Devils Tower||1st|
|Min. Temp.||-17 degrees||Red Owl||20th||-11 degrees||Dillinger||20th|
|Precipitation||Western South Dakota||Northeast Wyoming|
|Max. Precipitation||1.95 inches||Lead||1.30 inches||Dillinger|
|Min. Precipitation||0.02 inches||Lemmon||0.16 inches||Colony|
|Max. Snowfall||23.9 inches||Lead||16 inches||Wright 12 W|
|Min. Snowfall||1.0 inches||Long Valley||5.5 inches||Sundance|
|Max. Precipitation||0.70 inches||Custer||19th||0.75 inches||Devils Tower||20th|
|Max. Snowfall||13 inches||Custer||19th||9 inches||Devils Tower||20th|