Grass Rope, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 32° -37° (1988) 70° (1974) 0.39" 4.8"
February 14° 37° -38° (1994) 75° (2000) 0.5" 6.1"
March 23° 48° -28° (1960) 89° (1988) 1.26" 8"
April 34° 62° -5° (1975) 99° (1992) 2.16" 3.9"
May 46° 73° 15° (1981) 102° (1969) 3.16" 0.2"
June 56° 82° 28° (1969) 111° (1988) 3.35" 0"
July 62° 90° 35° (1971) 113° (1966) 2.49" 0"
August 60° 88° 34° (1950) 114° (1965) 1.93" 0"
September 49° 79° 20° (1984) 108° (1983) 1.77" 0.1"
October 36° 64° 5° (1991) 99° (1963) 1.54" 0.8"
November 23° 46° -23° (1959) 89° (1999) 0.72" 6.3"
December 11° 33° -31° (1983) 74° (1998) 0.38" 6.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 40° 69° 18° (1961) 102° (1959) 0.1" 0"
May 2 41° 69° 18° (1967) 97° (1959) 0.1" 0.1"
May 3 41° 69° 17° (1967) 91° (1982) 0.09" 0"
May 4 42° 70° 16° (1967) 96° (2000) 0.1" 0"
May 5 42° 70° 22° (1954) 100° (2004) 0.09" 0"
May 6 42° 70° 21° (1976) 93° (2000) 0.1" 0.1"
May 7 43° 71° 23° (1976) 94° (1963) 0.09" 0"
May 8 43° 71° 18° (1980) 92° (1985) 0.1" 0"
May 9 44° 71° 23° (1966) 91° (1985) 0.1" 0"
May 10 44° 72° 15° (1981) 92° (1961) 0.1" 0"
May 11 44° 72° 25° (1960) 91° (1958) 0.09" 0"
May 12 45° 72° 27° (1981) 92° (2007) 0.1" 0"
May 13 45° 72° 24° (1966) 93° (2007) 0.1" 0"
May 14 45° 73° 25° (1973) 95° (2001) 0.1" 0"
May 15 46° 73° 18° (1959) 92° (1987) 0.1" 0"
May 16 46° 73° 32° (1973) 94° (1987) 0.11" 0"
May 17 46° 73° 28° (1969) 94° (1964) 0.1" 0"
May 18 47° 74° 25° (2002) 96° (1948) 0.1" 0"
May 19 47° 74° 29° (1981) 96° (1948) 0.1" 0"
May 20 47° 74° 28° (2003) 95° (1948) 0.11" 0"
May 21 48° 74° 29° (1963) 96° (1964) 0.1" 0"
May 22 48° 74° 21° (1963) 96° (1954) 0.11" 0"
May 23 48° 75° 29° (1959) 90° (1950) 0.1" 0"
May 24 49° 75° 27° (2002) 95° (1967) 0.11" 0"
May 25 49° 75° 33° (1968) 95° (1985) 0.1" 0"
May 26 49° 75° 27° (1961) 95° (1969) 0.11" 0"
May 27 50° 76° 29° (1992) 102° (1969) 0.1" 0"
May 28 50° 76° 29° (1965) 98° (1969) 0.11" 0"
May 29 50° 76° 34° (1954) 95° (1953) 0.11" 0"
May 30 51° 77° 34° (1975) 97° (1969) 0.11" 0"
May 31 51° 77° 37° (1956) 94° (1984) 0.12" 0"
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