Duncan, Oklahoma
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 27° 50° -4° (1988) 84° (1950) 1.4" NA
February 32° 56° -2° (1985) 90° (1996) 1.86" NA
March 40° 64° 2° (1948) 95° (1974) 2.79" NA
April 49° 73° 26° (1997) 100° (1972) 3.39" NA
May 58° 80° 34° (1960) 104° (2000) 5.27" NA
June 67° 88° 47° (1964) 111° (1980) 4.52" NA
July 71° 94° 55° (1972) 110° (1980) 2.52" NA
August 70° 93° 55° (1992) 111° (1970) 2.5" NA
September 62° 85° 38° (1984) 108° (2000) 3.99" NA
October 51° 75° 19° (1993) 102° (1977) 3.87" NA
November 39° 62° 14° (1993) 87° (1992) 2.34" NA
December 30° 52° -7° (1989) 88° (1955) 1.96" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 70° 92° 60° (1951) 105° (1980) 0.11" NA
Jul 2 70° 92° 61° (1976) 107° (1980) 0.11" NA
Jul 3 70° 92° 66° (1968) 110° (1980) 0.11" NA
Jul 4 70° 92° 63° (1968) 109° (1980) 0.1" NA
Jul 5 70° 93° 61° (1972) 103° (1971) 0.1" NA
Jul 6 70° 93° 55° (1972) 105° (1996) 0.1" NA
Jul 7 70° 93° 62° (1972) 107° (1970) 0.09" NA
Jul 8 71° 93° 55° (1952) 107° (1996) 0.09" NA
Jul 9 71° 93° 59° (1952) 107° (1964) 0.09" NA
Jul 10 71° 93° 64° (1952) 106° (1954) 0.09" NA
Jul 11 71° 94° 60° (1961) 105° (1954) 0.09" NA
Jul 12 71° 94° 60° (1953) 107° (1954) 0.08" NA
Jul 13 71° 94° 61° (1953) 107° (1954) 0.08" NA
Jul 14 71° 94° 62° (1967) 105° (1980) 0.08" NA
Jul 15 71° 94° 60° (1967) 107° (1966) 0.08" NA
Jul 16 71° 94° 60° (1967) 104° (1954) 0.08" NA
Jul 17 71° 94° 58° (1967) 108° (1954) 0.07" NA
Jul 18 71° 94° 65° (1967) 108° (1954) 0.07" NA
Jul 19 71° 94° 61° (1953) 105° (1966) 0.07" NA
Jul 20 71° 94° 59° (1953) 104° (1980) 0.07" NA
Jul 21 71° 95° 57° (1970) 106° (1963) 0.07" NA
Jul 22 71° 95° 60° (1970) 107° (1974) 0.07" NA
Jul 23 71° 95° 57° (1970) 108° (1974) 0.07" NA
Jul 24 71° 95° 63° (1970) 107° (1964) 0.07" NA
Jul 25 72° 95° 63° (2004) 109° (1954) 0.07" NA
Jul 26 72° 95° 63° (2004) 106° (1977) 0.07" NA
Jul 27 72° 95° 62° (1994) 107° (1964) 0.07" NA
Jul 28 72° 95° 59° (1994) 106° (1964) 0.07" NA
Jul 29 71° 95° 61° (2005) 104° (1966) 0.07" NA
Jul 30 71° 95° 59° (1971) 105° (1970) 0.07" NA
Jul 31 71° 95° 56° (1971) 105° (1966) 0.06" NA
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