Duncan, Oklahoma
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 28° 52° -4° (1988) 84° (1950) 1.51" 1.6"
February 32° 56° -2° (1985) 90° (1996) 2.12" 0.5"
March 41° 64° 2° (1948) 95° (1974) 2.96" 0.2"
April 49° 73° 26° (1997) 100° (1972) 3.56" 0"
May 59° 80° 34° (1960) 104° (2000) 5.28" 0"
June 67° 88° 47° (1964) 111° (1980) 4.96" 0"
July 71° 93° 55° (1972) 110° (1980) 2.6" 0"
August 71° 94° 55° (1992) 111° (1970) 2.78" 0"
September 63° 85° 38° (1984) 108° (2000) 3.64" 0"
October 51° 75° 19° (1993) 102° (1977) 4.26" 0"
November 40° 63° 14° (1993) 87° (1992) 2.31" 0.2"
December 30° 53° -7° (1989) 88° (1955) 2.12" 0.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 28° 51° 9° (1991) 79° (1952) 0.05" 0.1"
Jan 2 28° 51° 5° (1979) 76° (2006) 0.05" 0"
Jan 3 28° 51° 8° (1959) 77° (1997) 0.06" 0.1"
Jan 4 28° 51° 0° (1959) 81° (1997) 0.05" 0"
Jan 5 28° 51° 4° (1959) 72° (1951) 0.05" 0.1"
Jan 6 28° 51° 8° (2004) 75° (2008) 0.05" 0.1"
Jan 7 28° 51° 4° (1968) 75° (2008) 0.05" 0"
Jan 8 28° 51° -4° (1988) 78° (2006) 0.05" 0.1"
Jan 9 28° 51° -4° (1988) 78° (2006) 0.04" 0"
Jan 10 28° 51° -2° (1977) 74° (2009) 0.05" 0.1"
Jan 11 28° 51° 0° (1962) 75° (1990) 0.04" 0"
Jan 12 28° 51° 2° (1963) 74° (1995) 0.05" 0.1"
Jan 13 28° 51° 3° (1963) 75° (1952) 0.04" 0"
Jan 14 28° 51° 8° (1963) 76° (1953) 0.05" 0.1"
Jan 15 28° 51° 5° (1979) 75° (1952) 0.05" 0"
Jan 16 28° 51° 10° (1982) 75° (1952) 0.04" 0.1"
Jan 17 28° 51° 7° (1978) 73° (1951) 0.05" 0"
Jan 18 28° 52° 8° (1978) 74° (1951) 0.06" 0.1"
Jan 19 28° 52° 5° (1963) 80° (1952) 0.05" 0.1"
Jan 20 28° 52° 5° (1962) 76° (1982) 0.04" 0"
Jan 21 28° 52° 5° (1985) 81° (1986) 0.05" 0.1"
Jan 22 28° 52° 8° (1959) 79° (1967) 0.05" 0"
Jan 23 28° 52° 1° (1966) 76° (1967) 0.04" 0.1"
Jan 24 28° 52° 5° (1963) 73° (1950) 0.05" 0"
Jan 25 29° 52° 14° (1948) 84° (1950) 0.05" 0"
Jan 26 29° 53° 14° (1949) 79° (1952) 0.05" 0.1"
Jan 27 29° 53° 6° (1963) 75° (1969) 0.05" 0"
Jan 28 29° 53° 7° (1948) 75° (1982) 0.05" 0.1"
Jan 29 29° 53° 5° (1966) 75° (2002) 0.05" 0"
Jan 30 29° 53° 1° (1966) 76° (1962) 0.05" 0.1"
Jan 31 29° 53° 3° (1979) 73° (1952) 0.05" 0"
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