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
Jul 1 63° 88° 52° (1976) 98° (1949) 0.14" NA
Jul 2 63° 89° 54° (1976) 100° (1954) 0.14" NA
Jul 3 63° 89° 52° (1959) 103° (1980) 0.14" NA
Jul 4 63° 89° 50° (1968) 101° (1954) 0.13" NA
Jul 5 63° 89° 51° (1972) 102° (1954) 0.13" NA
Jul 6 63° 89° 49° (1972) 105° (1954) 0.13" NA
Jul 7 63° 90° 50° (1972) 102° (1954) 0.13" NA
Jul 8 63° 90° 51° (1983) 102° (1954) 0.13" NA
Jul 9 63° 90° 51° (1983) 101° (1980) 0.13" NA
Jul 10 64° 90° 48° (1963) 102° (1966) 0.12" NA
Jul 11 64° 90° 49° (1963) 102° (1966) 0.12" NA
Jul 12 64° 90° 54° (1959) 105° (1966) 0.12" NA
Jul 13 64° 90° 52° (1964) 111° (1954) 0.12" NA
Jul 14 64° 90° 50° (1967) 113° (1954) 0.12" NA
Jul 15 64° 90° 50° (1967) 116° (1954) 0.12" NA
Jul 16 64° 91° 50° (1990) 112° (1954) 0.12" NA
Jul 17 64° 91° 50° (1976) 106° (1980) 0.11" NA
Jul 18 64° 91° 52° (1985) 109° (1954) 0.11" NA
Jul 19 64° 91° 58° (1967) 112° (1954) 0.11" NA
Jul 20 64° 91° 54° (1984) 108° (1954) 0.11" NA
Jul 21 64° 91° 53° (1970) 108° (1954) 0.11" NA
Jul 22 64° 91° 49° (1970) 104° (1974) 0.11" NA
Jul 23 64° 91° 49° (1970) 108° (1954) 0.11" NA
Jul 24 64° 91° 55° (2000) 100° (1963) 0.1" NA
Jul 25 64° 91° 55° (2000) 101° (1965) 0.1" NA
Jul 26 64° 91° 55° (1996) 105° (1986) 0.1" NA
Jul 27 64° 91° 50° (1962) 104° (1986) 0.1" NA
Jul 28 64° 91° 50° (1962) 105° (1986) 0.1" NA
Jul 29 64° 91° 54° (1965) 104° (1986) 0.1" NA
Jul 30 64° 91° 53° (1984) 108° (1986) 0.1" NA
Jul 31 64° 91° 50° (1971) 109° (1986) 0.1" NA
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