Standing Rock Reservation, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 26° -40° (1966) 67° (1981) 0.32" 4.1"
February 11° 32° -32° (1996) 73° (1982) 0.47" 5.7"
March 21° 42° -30° (1980) 85° (1967) 1.08" 6.9"
April 33° 57° 1° (1997) 97° (1980) 1.64" 4.3"
May 44° 69° 18° (1967) 104° (1969) 3.03" 0.3"
June 54° 79° 30° (1969) 111° (2002) 2.98" 0"
July 59° 87° 35° (1971) 114° (2006) 2.58" 0"
August 57° 86° 35° (1977) 111° (1988) 1.52" 0"
September 46° 75° 13° (1984) 106° (1983) 1.29" 0"
October 33° 61° -5° (1991) 97° (1963) 1.6" 0.7"
November 19° 41° -18° (1985) 83° (1999) 0.58" 4.4"
December 29° -33° (1967) 72° (1965) 0.36" 5.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 52° 81° 32° (1981) 106° (1983) 0.04" NA
Sep 2 52° 81° 32° (1974) 106° (1971) 0.04" NA
Sep 3 51° 81° 29° (1974) 100° (1978) 0.04" NA
Sep 4 51° 80° 35° (1974) 102° (1978) 0.04" NA
Sep 5 50° 80° 31° (1965) 105° (1978) 0.04" NA
Sep 6 50° 79° 37° (1966) 105° (1978) 0.04" NA
Sep 7 49° 79° 39° (1964) 101° (1978) 0.04" NA
Sep 8 49° 78° 36° (1972) 101° (2002) 0.04" NA
Sep 9 48° 78° 29° (1976) 103° (1979) 0.04" NA
Sep 10 48° 78° 36° (1964) 101° (1982) 0.04" NA
Sep 11 47° 77° 30° (1989) 103° (1998) 0.04" NA
Sep 12 47° 77° 28° (1964) 97° (1981) 0.04" NA
Sep 13 47° 76° 30° (1978) 96° (1990) 0.04" NA
Sep 14 46° 76° 26° (1993) 95° (1968) 0.04" NA
Sep 15 46° 75° 31° (1982) 92° (1997) 0.04" NA
Sep 16 45° 75° 31° (1979) 98° (1979) 0.04" NA
Sep 17 45° 75° 25° (1973) 96° (2002) 0.04" NA
Sep 18 45° 74° 25° (1991) 101° (2000) 0.04" NA
Sep 19 44° 74° 27° (1991) 101° (1998) 0.04" NA
Sep 20 44° 73° 28° (1964) 90° (1969) 0.04" NA
Sep 21 43° 73° 25° (1995) 91° (1984) 0.04" NA
Sep 22 43° 72° 22° (1983) 90° (1967) 0.05" NA
Sep 23 42° 72° 25° (1983) 95° (2007) 0.05" NA
Sep 24 42° 72° 17° (1965) 92° (2007) 0.05" NA
Sep 25 42° 71° 30° (1984) 95° (1992) 0.05" NA
Sep 26 41° 71° 20° (1984) 95° (1974) 0.05" NA
Sep 27 41° 70° 21° (1964) 93° (1990) 0.05" NA
Sep 28 41° 70° 21° (1974) 92° (1989) 0.05" NA
Sep 29 40° 69° 13° (1984) 88° (1995) 0.05" NA
Sep 30 40° 69° 16° (1974) 96° (1967) 0.05" NA
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