Gretna, Missouri
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 21° 44° -15° (1984) 80° (1950) 2.3" 3.2"
February 25° 50° -19° (1951) 87° (1962) 2.44" 3.4"
March 33° 59° 0° (2002) 90° (1967) 3.94" 2.4"
April 41° 69° 19° (1957) 96° (1955) 3.99" 0.1"
May 50° 77° 29° (1963) 99° (2000) 4.29" 0"
June 59° 85° 40° (1984) 105° (1954) 4.59" 0"
July 64° 90° 48° (1963) 116° (1954) 3.61" 0"
August 62° 89° 40° (1986) 108° (1964) 3.09" 0"
September 55° 82° 30° (1963) 106° (1954) 4.19" 0"
October 43° 72° 22° (1981) 96° (1953) 2.98" 0"
November 34° 58° 6° (1986) 90° (1955) 4.63" 0.7"
December 25° 47° -12° (1989) 81° (1951) 3.14" 1.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 37° 65° 20° (1987) 89° (1974) 0.14" NA
Apr 2 37° 65° 25° (1972) 87° (1978) 0.14" NA
Apr 3 38° 66° 21° (1962) 85° (1981) 0.14" NA
Apr 4 38° 66° 21° (1987) 86° (1985) 0.14" NA
Apr 5 38° 66° 21° (1987) 87° (1954) 0.14" NA
Apr 6 38° 67° 24° (1966) 88° (1967) 0.14" NA
Apr 7 39° 67° 25° (1971) 92° (1954) 0.14" NA
Apr 8 39° 67° 20° (2007) 87° (1977) 0.14" NA
Apr 9 39° 68° 20° (2007) 88° (2001) 0.14" NA
Apr 10 40° 68° 23° (1982) 91° (2001) 0.13" NA
Apr 11 40° 68° 21° (1989) 91° (2001) 0.13" NA
Apr 12 40° 68° 21° (1989) 88° (1972) 0.13" NA
Apr 13 40° 69° 19° (1957) 92° (1972) 0.13" NA
Apr 14 41° 69° 25° (1950) 91° (1972) 0.13" NA
Apr 15 41° 69° 25° (1983) 91° (2006) 0.13" NA
Apr 16 41° 70° 26° (1951) 87° (1955) 0.13" NA
Apr 17 41° 70° 28° (1951) 92° (2006) 0.13" NA
Apr 18 42° 70° 28° (1982) 91° (2006) 0.13" NA
Apr 19 42° 71° 29° (1983) 95° (2006) 0.13" NA
Apr 20 42° 71° 30° (1988) 92° (1987) 0.13" NA
Apr 21 43° 71° 28° (1982) 94° (1987) 0.13" NA
Apr 22 43° 71° 26° (1982) 95° (1963) 0.13" NA
Apr 23 43° 72° 29° (1993) 96° (1955) 0.13" NA
Apr 24 44° 72° 30° (1963) 92° (1989) 0.13" NA
Apr 25 44° 72° 31° (1977) 93° (1989) 0.13" NA
Apr 26 44° 72° 32° (1983) 89° (1954) 0.13" NA
Apr 27 44° 73° 34° (1976) 93° (1989) 0.13" NA
Apr 28 45° 73° 30° (1979) 91° (1989) 0.13" NA
Apr 29 45° 73° 33° (1992) 87° (1951) 0.13" NA
Apr 30 45° 73° 33° (1996) 91° (1970) 0.13" NA
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