Castlewood, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -1° 20° -37° (1988) 66° (1981) 0.7" 5.8"
February 28° -44° (1994) 67° (1958) 0.55" 4.9"
March 19° 39° -29° (1948) 81° (1967) 1.33" 6.3"
April 31° 55° -4° (1975) 97° (1980) 1.99" 1"
May 44° 68° 12° (1967) 98° (1967) 2.95" 0"
June 54° 77° 30° (1964) 104° (1988) 4.15" 0"
July 58° 83° 34° (1971) 107° (1966) 3.41" 0"
August 56° 81° 31° (1987) 104° (1988) 2.87" 0"
September 45° 72° 17° (2003) 101° (1976) 2.31" 0"
October 32° 59° 8° (1991) 90° (1992) 1.94" 0.5"
November 19° 39° -23° (1964) 79° (1999) 0.96" 3.5"
December 25° -36° (1967) 59° (1962) 0.49" 4.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Feb 1 23° -31° (1996) 49° (1987) 0.02" NA
Feb 2 23° -34° (1996) 52° (1991) 0.02" NA
Feb 3 24° -31° (1996) 59° (1991) 0.02" NA
Feb 4 24° -28° (1996) 52° (2005) 0.02" NA
Feb 5 24° -31° (1982) 61° (2005) 0.02" NA
Feb 6 25° -23° (1982) 55° (1991) 0.02" NA
Feb 7 25° -25° (1971) 54° (1987) 0.02" NA
Feb 8 25° -31° (1948) 61° (1987) 0.02" NA
Feb 9 26° -44° (1994) 62° (1991) 0.02" NA
Feb 10 26° -41° (1994) 51° (1951) 0.01" NA
Feb 11 26° -36° (1988) 52° (1977) 0.02" NA
Feb 12 27° -33° (1988) 55° (1987) 0.02" NA
Feb 13 27° -20° (1997) 55° (2005) 0.02" NA
Feb 14 27° -22° (2007) 54° (1954) 0.02" NA
Feb 15 28° -30° (2007) 61° (1999) 0.02" NA
Feb 16 28° -31° (1967) 58° (1981) 0.02" NA
Feb 17 28° -27° (1956) 55° (1954) 0.02" NA
Feb 18 29° -22° (1993) 58° (1981) 0.02" NA
Feb 19 29° -30° (1959) 57° (1981) 0.02" NA
Feb 20 29° -19° (1959) 58° (1981) 0.02" NA
Feb 21 29° -19° (2001) 57° (1977) 0.02" NA
Feb 22 30° -25° (1957) 60° (2000) 0.02" NA
Feb 23 10° 30° -26° (1993) 67° (1958) 0.02" NA
Feb 24 10° 30° -26° (1993) 61° (1976) 0.02" NA
Feb 25 11° 31° -20° (1993) 63° (1958) 0.02" NA
Feb 26 11° 31° -16° (1993) 58° (2000) 0.02" NA
Feb 27 12° 31° -25° (1962) 58° (1983) 0.02" NA
Feb 28 12° 32° -40° (1962) 56° (1985) 0.02" NA
Feb 29 12° 32° -15° (1960) 59° (2000) 0.02" NA
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