Dubuque, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 11° 28° -31° (1951) 61° (1981) 1.14" 10.1"
February 15° 33° -32° (1996) 65° (2000) 1.26" 7.6"
March 26° 45° -32° (1962) 87° (1986) 2.04" 3.8"
April 39° 60° 11° (1982) 93° (1980) 3.42" 1.2"
May 50° 71° 29° (2005) 95° (1991) 4.37" 0"
June 61° 81° 42° (1969) 101° (1988) 4.95" 0"
July 65° 85° 46° (1981) 108° (1995) 4.78" 0"
August 63° 82° 43° (1994) 104° (1988) 4.03" 0"
September 54° 74° 29° (1989) 97° (2000) 3.51" 0"
October 42° 62° 19° (1981) 92° (1997) 2.75" 0"
November 30° 46° -8° (1977) 75° (2000) 2.38" 1.3"
December 17° 32° -30° (1950) 66° (2001) 1.67" 9.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 60° 80° 42° (1949) 97° (1984) 0.13" 0"
Sep 2 60° 79° 47° (2003) 97° (2000) 0.12" 0"
Sep 3 60° 79° 47° (1952) 95° (2000) 0.13" 0"
Sep 4 59° 79° 45° (1974) 94° (1990) 0.11" 0"
Sep 5 59° 78° 45° (1962) 93° (1990) 0.13" 0"
Sep 6 59° 78° 44° (1950) 96° (1990) 0.11" 0"
Sep 7 58° 78° 45° (1956) 97° (1985) 0.12" 0"
Sep 8 58° 77° 43° (1949) 95° (1978) 0.12" 0"
Sep 9 57° 77° 46° (1981) 97° (1955) 0.12" 0"
Sep 10 57° 77° 42° (1967) 92° (1978) 0.11" 0"
Sep 11 57° 76° 44° (1955) 94° (2005) 0.12" 0"
Sep 12 56° 76° 41° (1955) 92° (2005) 0.12" 0"
Sep 13 56° 76° 40° (1963) 90° (1998) 0.12" 0"
Sep 14 55° 75° 38° (1949) 90° (1998) 0.11" 0"
Sep 15 55° 75° 40° (1989) 91° (1994) 0.12" 0"
Sep 16 54° 74° 40° (2007) 90° (1994) 0.12" 0"
Sep 17 54° 74° 45° (1951) 93° (1988) 0.11" 0"
Sep 18 53° 74° 41° (1973) 91° (1955) 0.12" 0"
Sep 19 53° 73° 41° (1991) 91° (1948) 0.12" 0"
Sep 20 52° 73° 31° (1956) 86° (1984) 0.12" 0"
Sep 21 52° 72° 39° (1983) 84° (1984) 0.12" 0"
Sep 22 51° 72° 33° (1995) 89° (2007) 0.12" 0"
Sep 23 51° 72° 35° (1983) 83° (2004) 0.12" 0"
Sep 24 50° 71° 29° (1989) 90° (1984) 0.12" 0"
Sep 25 50° 71° 30° (1989) 88° (1986) 0.11" 0"
Sep 26 50° 70° 34° (1984) 88° (1986) 0.12" 0"
Sep 27 49° 70° 35° (1985) 89° (1998) 0.11" 0"
Sep 28 49° 69° 34° (1964) 90° (1952) 0.11" 0"
Sep 29 48° 69° 32° (1949) 93° (1953) 0.1" 0"
Sep 30 48° 69° 35° (1972) 86° (1971) 0.1" 0"
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