November 2007 Climatic Summary


Dry weather and mild temperatures were the rule for November 1 through November 4. A cold front brought cooler weather and a few sprinkles for November 5 and 6.  Dry and mild conditions returned for November 7 through 10.  A weak upper level disturbance moved across the region on November 11 and 12 bringing near seasonal temperatures and a few light rain showers.  November 13 through 19 saw more mild temperatures and mainly dry weather. An upper level disturbance brought some light showers to the Black Hills and northwest South Dakota on November 17. A stronger storm system brought colder temperatures and some rain and snow for November 20 through 22. Rainfall was generally less than 0.25 inches...though little or no precipitation fell across southwest and south central South Dakota. Snowfall of 3 to 5 inches occurred in the Bear Lodge mountains and northern Black Hills with 2 to 4 inches over the plains of northeast Wyoming and across portions of northwest South Dakota. Dry and mild conditions returned for November 23 through 26. A stronger cold front brought dry and cold conditions for November 27 through the end of the month, though some light snow was reported across the Bear Lodge mountains and northern Black Hills on November 28 and 29.
November was another warm month with temperatures averaging 3 to 5 degrees above normal. For the third straight month, all reporting sites reported above normal temperatures. Temperatures ranged from 6.1 degrees above normal in Winner to 1.8 degrees above normal at Pactola Dam.
November was one of the driest on record with only 15 to 30 percent of normal precipitation falling.  No location reported above normal precipitation. The wettest locations were in northeastern Wyoming, the northern Black Hills and far northwest South Dakota where 40 to 60 percent of normal precipitation fell.  The wet spot was in Upton, in northeast Wyoming where 69 percent of normal precipitation fell. The driest areas were across south central and southwestern South Dakota where little or no precipitation fell. Several locations reported the driest Novembers on record, with 10 locations reporting no rainfall for the month. These included: Cedar Butte 1NE, Elm Springs, Interior, Long Valley, Ludlow 3SSE, Martin, Mission 14S, Oglala 1S, Wind Cave and Winner. Wood also had the driest November on record with only 0.02 inches of precipitation falling. Rainfall deficits for the month averaged 0.57 inches.
Snowfall was again sparse in the month of November. Northeastern Wyoming, the northern Black Hills and portions of northwest South Dakota reported 3 to 6 inches of snow for the month. The rest of the plains of western South Dakota, and the southern and central Black Hills received 2 inches or less of snowfall.

LOCAL EXTREMES

Temperature Data Rapid City   Lead   Gillette  
  Temperature Date Temperature Date Temperature  Date
Maximum Temperature 75 degrees 4th 64 degrees 10th 67 degrees 4th,  10th
Minimum Temperature 8 degrees 30th  4 degrees 22nd 1 degree 22nd,  23rd
             
Precipitation Data Rapid City   Lead   Gillette  
Monthly  Data Amount Data Amount Date Amount Date
Precipitation 0.03 inches   0.44 inches   0.08 inches  
Snowfall Trace   5.8 inches   0.1 inches  
             
Daily Data            
Maximum Precipitation 0.02 inches 17th  0.20 inches 20th 0.03 inches 12th, 13th
Maximum Snowfall Trace 11th,  20th 4.5 inches 20th 0.1 inches 20th

REGIONAL EXTREMES

Temperature Data   Western South Dakota     Northeastern Wyoming  
  Temperature Site Date Temperature Site Date
Maximum Temperature 75 degrees Oral 5th 72 degrees Colony 9th
Minimum Temperature -11 degrees Medicine Mtn. 22nd -8 degrees Upton 14ENE 23rd
             
Precipitation Data   Western South Dakota     Northeastern Wyoming  
Monthly Data Amount Site Date Amount Site Date
Maximum Precipitation 0.57 inches Deadwood 2NE   0.50 inches Sundance  
Minimum Precipitation 0.00 inches Several Locations   0.06 inches Wright 12W  
Maximum Snowfall 6.7 inches Deadwood 2NE   6.5 inches Upton 14ENE       Sundance      
Minimum Snowfall 0.0 inches Several Locations   0.1 inches Gillette 4SE  
             
Daily Data            
Maximum Precipitation 0.35 inches Ladner 9SW 20th 0.40 inches Upton 20th
Maximum Snowfall 5.0 inches Camp Crook 20th 5.6 inches Sundance 20th

MONTHLY RECORDS

LOCATION DATE NEW RECORD OLD RECORD DATE
Interior November 0.00 inches rainfall Trace 1969
Interior November 0.0 inches snowfall 0.0 inches Many years
Long Valley November 0.00 inches rainfall Trace Many years
Long Valley November 0.0 inches snowfall 0.0 inches Many years
Mission 14S November 0.00 inches rainfall Trace 1958, 1962
Mission 14S November 0.0 inches snowfall 0.0 inches 1960, 1967
Rapid City Airport November Trace snowfall Trace 1949, 1987
Winner November 0.00 inches rainfall 0.02 inches 1962
Winner November 0.0 inches snowfall 0.0 inches Many years
Wood November 0.01 inches rainfall 0.04 inches 2002
Wood November 0.0 inches snowfall 0.0 inches Many years


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