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
May 1 45° 66° 30° (1950) 88° (1992) 0.13" 0"
May 2 45° 66° 33° (1966) 87° (1992) 0.13" 0"
May 3 46° 67° 29° (2005) 84° (1949) 0.14" 0"
May 4 46° 67° 30° (1954) 88° (1952) 0.14" 0"
May 5 46° 67° 33° (1954) 90° (1980) 0.14" 0"
May 6 47° 68° 30° (1989) 85° (2000) 0.13" 0"
May 7 47° 68° 32° (1954) 84° (2002) 0.14" 0"
May 8 47° 68° 34° (1954) 87° (1963) 0.13" 0"
May 9 48° 69° 30° (1966) 85° (1979) 0.14" 0"
May 10 48° 69° 33° (1966) 88° (1987) 0.14" 0"
May 11 48° 69° 33° (1966) 90° (2007) 0.14" 0"
May 12 49° 70° 36° (1967) 87° (1991) 0.14" 0"
May 13 49° 70° 35° (1953) 86° (1991) 0.14" 0"
May 14 49° 70° 30° (1980) 85° (1991) 0.15" 0"
May 15 50° 71° 37° (1997) 93° (2007) 0.14" 0"
May 16 50° 71° 37° (1997) 92° (2001) 0.14" 0"
May 17 50° 71° 36° (2007) 90° (1987) 0.14" 0"
May 18 51° 72° 36° (1990) 90° (1998) 0.14" 0"
May 19 51° 72° 39° (1968) 92° (1998) 0.14" 0"
May 20 51° 72° 37° (2002) 89° (1975) 0.14" 0"
May 21 52° 73° 39° (2002) 89° (1972) 0.14" 0"
May 22 52° 73° 35° (1967) 89° (1970) 0.15" 0"
May 23 52° 73° 36° (1963) 86° (1972) 0.15" 0"
May 24 53° 74° 41° (2002) 90° (2007) 0.14" 0"
May 25 53° 74° 41° (1988) 95° (2010) 0.14" 0"
May 26 54° 74° 38° (1961) 92° (1985) 0.15" 0"
May 27 54° 75° 41° (1971) 88° (1978) 0.14" 0"
May 28 54° 75° 40° (1965) 95° (1991) 0.15" 0"
May 29 55° 75° 37° (1965) 95° (1991) 0.14" 0"
May 30 55° 76° 43° (1965) 91° (1953) 0.15" 0"
May 31 55° 76° 45° (1972) 91° (1988) 0.15" 0"
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