Deadwood, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 11° 33° -28° (1963) 65° (1981) 1.3" NA
February 15° 37° -29° (1989) 67° (1996) 1.19" NA
March 21° 44° -18° (1948) 77° (2003) 2.36" NA
April 29° 53° -6° (2002) 91° (1980) 3.62" NA
May 39° 64° 4° (1954) 94° (1948) 4.51" NA
June 48° 74° 23° (1979) 102° (2002) 3.95" NA
July 54° 81° 32° (1950) 103° (1954) 2.69" NA
August 52° 80° 27° (2004) 103° (1949) 2.03" NA
September 42° 70° 17° (1985) 101° (1954) 1.79" NA
October 32° 57° -7° (1991) 86° (1992) 2.18" NA
November 21° 42° -19° (1985) 75° (1999) 1.42" NA
December 13° 35° -30° (1989) 64° (1993) 1.39" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 34° 58° 14° (1989) 80° (1955) 0.14" NA
May 2 34° 59° 18° (1967) 85° (1955) 0.14" NA
May 3 35° 59° 4° (1954) 89° (1986) 0.14" NA
May 4 35° 59° 19° (1967) 89° (1986) 0.14" NA
May 5 35° 60° 16° (1967) 84° (1986) 0.14" NA
May 6 36° 60° 22° (1996) 88° (2000) 0.14" NA
May 7 36° 61° 22° (1959) 81° (1992) 0.14" NA
May 8 36° 61° 22° (1999) 86° (1992) 0.14" NA
May 9 37° 61° 24° (1968) 80° (1962) 0.14" NA
May 10 37° 62° 21° (1979) 83° (1961) 0.14" NA
May 11 37° 62° 21° (1968) 81° (1958) 0.14" NA
May 12 38° 62° 16° (1953) 83° (1960) 0.14" NA
May 13 38° 63° 21° (1953) 88° (2001) 0.14" NA
May 14 38° 63° 21° (1953) 92° (2001) 0.15" NA
May 15 38° 63° 20° (2005) 88° (1978) 0.15" NA
May 16 39° 64° 28° (1983) 90° (1994) 0.15" NA
May 17 39° 64° 28° (1986) 94° (1948) 0.15" NA
May 18 39° 64° 27° (1995) 94° (1948) 0.15" NA
May 19 40° 65° 25° (1990) 90° (1948) 0.15" NA
May 20 40° 65° 21° (1968) 90° (1964) 0.15" NA
May 21 40° 65° 22° (1963) 86° (1954) 0.15" NA
May 22 41° 66° 26° (1963) 88° (1955) 0.15" NA
May 23 41° 66° 21° (2002) 85° (1989) 0.15" NA
May 24 41° 66° 25° (2002) 84° (1958) 0.15" NA
May 25 42° 67° 20° (1992) 80° (1956) 0.15" NA
May 26 42° 67° 27° (1950) 89° (1969) 0.15" NA
May 27 42° 67° 30° (1965) 93° (1969) 0.15" NA
May 28 43° 68° 24° (1996) 89° (1969) 0.15" NA
May 29 43° 68° 26° (1995) 88° (1949) 0.15" NA
May 30 43° 68° 28° (1989) 91° (2003) 0.15" NA
May 31 44° 69° 30° (1974) 86° (1955) 0.14" NA
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