Ottumwa, South Dakota
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 31° -37° (1949) 74° (1987) 0.31" NA
February 13° 38° -45° (1994) 76° (1982) 0.45" NA
March 22° 47° -28° (1960) 86° (1993) 1.27" NA
April 33° 60° 4° (2007) 99° (1980) 1.86" NA
May 45° 72° 17° (2005) 105° (1969) 2.77" NA
June 55° 81° 26° (2000) 112° (2002) 3.17" NA
July 60° 88° 34° (1971) 117° (2006) 2.36" NA
August 58° 88° 31° (2000) 114° (1980) 1.71" NA
September 46° 78° 16° (1951) 108° (2001) 1.26" NA
October 34° 64° -6° (1991) 99° (1963) 1.27" NA
November 20° 46° -28° (1959) 86° (1999) 0.54" NA
December 10° 35° -36° (1967) 74° (1998) 0.28" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 58° 85° 39° (1959) 107° (1974) 0.09" NA
Jul 2 58° 86° 38° (1968) 106° (1949) 0.09" NA
Jul 3 58° 86° 41° (1992) 108° (1949) 0.09" NA
Jul 4 59° 86° 42° (1972) 108° (2002) 0.09" NA
Jul 5 59° 86° 39° (1972) 107° (1974) 0.09" NA
Jul 6 59° 87° 45° (1953) 112° (1973) 0.09" NA
Jul 7 59° 87° 49° (1953) 111° (2007) 0.09" NA
Jul 8 59° 87° 41° (1952) 108° (1976) 0.08" NA
Jul 9 59° 87° 45° (1981) 109° (1976) 0.08" NA
Jul 10 59° 87° 44° (1999) 110° (1966) 0.08" NA
Jul 11 60° 88° 47° (1975) 109° (1974) 0.08" NA
Jul 12 60° 88° 43° (1959) 107° (1974) 0.08" NA
Jul 13 60° 88° 39° (1950) 107° (1974) 0.08" NA
Jul 14 60° 88° 45° (1952) 105° (2006) 0.08" NA
Jul 15 60° 88° 45° (1985) 117° (2006) 0.08" NA
Jul 16 60° 88° 42° (1976) 112° (2002) 0.07" NA
Jul 17 60° 89° 48° (1950) 113° (2002) 0.07" NA
Jul 18 60° 89° 45° (2000) 109° (1977) 0.07" NA
Jul 19 60° 89° 47° (1956) 111° (1983) 0.07" NA
Jul 20 60° 89° 47° (1956) 109° (1983) 0.07" NA
Jul 21 60° 89° 45° (1988) 109° (2007) 0.07" NA
Jul 22 60° 89° 42° (2000) 112° (1964) 0.07" NA
Jul 23 60° 89° 40° (1954) 109° (1964) 0.07" NA
Jul 24 60° 89° 47° (1950) 110° (1952) 0.07" NA
Jul 25 61° 89° 45° (1996) 109° (1963) 0.07" NA
Jul 26 61° 89° 40° (1971) 109° (2003) 0.07" NA
Jul 27 61° 89° 44° (1971) 105° (1980) 0.07" NA
Jul 28 61° 90° 42° (1971) 111° (2006) 0.07" NA
Jul 29 61° 90° 44° (1971) 112° (2006) 0.06" NA
Jul 30 61° 90° 34° (1971) 109° (2006) 0.06" NA
Jul 31 61° 90° 40° (1971) 110° (1955) 0.06" NA
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