Climate Extremes
for Aberdeen and South Dakota

Aberdeen period of record (Temperatures & Snowfall): 1893-Present
Aberdeen period of record (Precipitation): 1932-Present

  Aberdeen Record South Dakota Record
     
Record High Temperature 115  -  July 6 & July 9, 1936 120 at following locations (date)
Gann Valley (July 5, 1936)
Fort Pierre 17WSW &
Usta 8 WNW (July 15, 2006)
     
Record Low Temperature -46  -  January 12, 1912 and
February 8th, 1895
 -58 (McIntosh)  -  February 17, 1936
     
Warmest Year (avg temp)
49.8  -  1931 50.2 (State Avg)  -  1931 
     
Coldest Year (avg temp)
38.6  -  1950 41.8 (State Avg)  -  1917
     
Warmest Month (avg temp)
84.8  -  July 1936 87.4 (Gann Valley)  -  July 1936
     
Coldest Month (avg temp)
-7.3  -  February 1936 -11.0 (Pollock)  -  February 1936
     
Warmest Summer (avg temp) 77.2 - 1936 77.6 (State Avg)  -  1936
     
Coolest Summer (avg temp)
62.8  -  1915 N/A
     
Warmest Winter (avg temp)
27.6  -  1930-31 N/A
     
Coldest Winter (avg temp)
2.2  -  1935-36 8.6 (State Avg)  -  1935-36
     
Wettest Year 28.50  -  1998 48.42 (Deadwood)  -  1946
     
Driest Year 7.88  -  1976 2.89 (Ludlow)  -  1936
     
Wettest Month 12.23  -  May 2007
18.61 (Deadwood)  -  May 1946
     
Driest Month Trace - November 1999 (last observed) 0.02 (State Avg)  -  October 1952 
     
Wettest 24-hour Period 7.75  -  May 5-6, 2007
8.74 (Groton)  -  May 5-6, 2007
[Unofficial - 14.0 (Nemo) - June 9, 1972]
     
Greatest Seasonal Snowfall 109.8  -  1936-37 364.7 (Lead)  -  1993-94
     
Greatest Monthly Snowfall 38.5 - February 1915
94.0 (Dumont 2 ENE)  -  March 1950
     
Greatest 24-hour Snowfall N/A 52.0 (Lead)  -  March 14, 1973
     
Greatest Storm Snowfall 25.3  -  November 22-26, 1993 112.4 (Lead)  -  Feb 25 - Mar 1, 1998
     
Earliest Measurable Snowfall
0.2 - September 21, 1995 N/A
     
Latest Measurable Snowfall
2.0  -  May 12, 1943 N/A
     

Aberdeen Monthly Temperature Extremes and Means

   Record High
 Record Low
Warmest Avg Temperature
Coldest Avg Temperature
         
 January 60 - 1981, 44, 21  -46  -  1912 27.1  -  2006 -3.2  -  1937
         
 February  70  -  1958  -46  -  1895 34.1  -  1954 -7.3  -  1936
         
 March 86  -  1946 -32  -  1995 43.9  -  1910 15.1  -  1897
         
 April  98  -  1992 -2  -  1975 53.4  -  1915 36.0  -  1950
         
 May 110  -  1934 13  -  2005 69.0  -  1934 51.0  -  1954, 1924
         
 June 112  -  1931 28  -  1901 79.0  -  1933 59.4  -  1951
         
 July 115  -  1936 35  -  1915 84.8  -  1936 64.2  -  1992
         
 August 112  -  1965 30  -  1893 78.2  -  1937 63.4  -  2004
         
 September 107  -  1931 11  -  1939 68.3  -  1931 49.7  -  1965
         
 October 96  -  1963 -6  -  1919 56.0  -  1947 35.5  -  1925
         
 November 79  -  1904 -27  -  1964 40.7  -  1923 9.7  -  1896
         
 December 69  -  1939 -39  -  1967 27.4  -  1959 -0.5  -  1983
         

Aberdeen Precipitation and Snowfall Extremes

  Wettest Driest Snowiest
       
 January 2.23  -  1937 0.01  -  1961, 1940
26.2  -  1937
       
 February 2.06  -  1952  Trace  -  1932 38.5  -  1915
       
 March 3.45  -  1977  0.04  -  1971 28.0  -  1893
       
 April 7.88  -  1986  0.12  -  1981 24.4  - 1970
       
 May 12.23  -  2007 0.28  -  1948 2.0  -  1943
       
 June 8.88  -  1939  0.37  -  1974 0
       
 July 7.71  -  1972 0.30  -  1975 0
       
 August 6.62  -  1942 0.06  -  1947 0
       
 September 5.32  -  1996 0.05  -  1979 0.6  -  1903
       
 October 7.29  -  1998  Trace  -  1964, 1952 16.0  -  1906
       
 November 2.87  -  2000 Trace  -  1999, 1980 32.8  -  1896
       
 December 1.86  -  1935 Trace  -  1986, 1943
24.1  -  1927

 

Other Interesting Weather Information for Aberdeen
  • The warmest and coldest months on record were recorded during the same year. February 1936 is the coldest month on record with an average temperature of -7.3 degrees while July 1936 is the warmest month on record with an average temperature of 84.8 degrees. The total difference between the two months is 92.1 degrees.
  • During February 1936 the temperature stayed at or below zero for 18 straight days. The following is a list of highs and lows during that period:
 Date High Low   Date High Low   Date High Low
Feb 3 7 -12   Feb 9 0 -22   Feb 15 -18 -32
Feb 4 -10 -19   Feb 10 -4 -21   Feb 16 -10 -40
Feb 5 -13 -32   Feb 11 -14 -23   Feb 17 -7 -26
Feb 6 -13 -26   Feb 12 -12 -21   Feb 18 -1 -14
Feb 7 -12 -21   Feb 13 -4 -17   Feb 19 -4 -27
Feb 8 -7 -21   Feb 14 -13 -30   Feb 20 5 -16
  • From July 4 to July 19, 1936 the temperature reached 100 degrees or higher. This 16-day stretch is the longest streak of consecutive 100 degree temperatures on record. During this period the temperature reached 110 degrees or higher 5 times with a maximum of 115 degrees. The average high temperature for the month was a sizzling 102.7 degrees. The following is a list of highs and lows during that period:
 Date High Low   Date High Low   Date High Low
Jul 4 104 66   Jul 12 107 78   Jul 20 91 65
Jul 5 108 64   Jul 13 106 73   Jul 21 101 60
Jul 6 115 72   Jul 14 102 66   Jul 22 106 65
Jul 7 106 76   Jul 15 107 68   Jul 23 100 61
Jul 8 106 77   Jul 16 112 67   Jul 24 101 67
Jul 9 115 73   Jul 17 111 77   Jul 25 104 64
Jul 10 114 76   Jul 18 106 67   Jul 26 103 72
Jul 11 108 83   Jul 19 103 70        
  • The maximum snow depth ever measured was 30 inches on January 10-13 & 16-18, 1997
  • The latest first measurable snowfall of the season was 1.2 inches on January 9, 1963
  • The strongest wind gust occurred during a severe thunderstorm on July 1, 1973. The wind was recorded at 58 MPH with a gust to 86 MPH
  • The earliest 100 degree reading was 102 on May 1, 1959. The latest 100 degree reading was 103 on September 22, 1936 and 101 on September 22, 1922.
  • The earliest below zero reading in the fall was -3 on October 26, 1919. The latest below zero reading in the spring was -2 on April 3, 1975
  • The most consecutive days with measurable precipitation was 10 days, which ran from  July 30 - August 8, 1956 and April 29 - May 8, 1950
  • The longest period without measurable precipitation is 55 days, which ran from September 21 to Novemeber 17, 1952 (note: there is a reported 88-day stretch in 1900-1901, but with rainfall records before 1932 disregarded this is the longest)
  • The highest calendar day precipitation was 7.62 inches on May 5, 2007.

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