Waterloo, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 27° -34° (2009) 65° (2002) 0.8" 8.2"
February 15° 32° -31° (1996) 71° (1921) 1.04" 7.2"
March 26° 46° -34° (1962) 87° (1986) 2.06" 4.3"
April 37° 61° -4° (1982) 100° (1980) 3.7" 2"
May 49° 72° 22° (2005) 108° (1934) 4.53" 0"
June 59° 81° 33° (1897) 107° (1934) 4.98" 0"
July 63° 85° 42° (1984) 112° (1936) 4.91" 0"
August 60° 82° 33° (1950) 110° (1936) 4.27" 0"
September 51° 75° 19° (1899) 102° (1939) 2.63" 0"
October 39° 62° 0° (1925) 95° (1997) 2.48" 0.2"
November 27° 46° -17° (1977) 83° (1933) 2.01" 3.3"
December 14° 31° -29° (2000) 67° (2001) 1.2" 9.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 44° 69° 23° (2003) 91° (1897) 0.09" 0"
Oct 2 43° 68° 19° (2003) 93° (1953) 0.09" 0"
Oct 3 43° 68° 26° (1987) 95° (1997) 0.1" 0"
Oct 4 42° 67° 22° (1935) 89° (1938) 0.09" 0"
Oct 5 42° 67° 24° (1988) 93° (1963) 0.08" 0"
Oct 6 42° 66° 18° (1935) 95° (1963) 0.09" 0"
Oct 7 41° 66° 24° (1988) 87° (1997) 0.08" 0"
Oct 8 41° 66° 21° (1976) 90° (1916) 0.08" 0"
Oct 9 41° 65° 19° (2000) 88° (2010) 0.08" 0"
Oct 10 40° 65° 18° (1964) 89° (1928) 0.08" 0.1"
Oct 11 40° 64° 16° (1987) 90° (1920) 0.08" 0"
Oct 12 40° 64° 22° (1988) 95° (1930) 0.07" 0"
Oct 13 40° 63° 15° (1917) 90° (1975) 0.08" 0"
Oct 14 39° 63° 20° (1937) 90° (1897) 0.08" 0"
Oct 15 39° 62° 21° (1937) 85° (1963) 0.07" 0"
Oct 16 39° 62° 22° (1952) 86° (1938) 0.08" 0"
Oct 17 38° 62° 21° (1943) 86° (1910) 0.08" 0"
Oct 18 38° 61° 18° (1952) 87° (1950) 0.08" 0"
Oct 19 38° 61° 14° (1972) 84° (1910) 0.08" 0"
Oct 20 38° 60° 17° (1952) 87° (2003) 0.08" 0"
Oct 21 37° 60° 13° (1930) 86° (1947) 0.09" 0"
Oct 22 37° 59° 14° (1976) 87° (1899) 0.08" 0"
Oct 23 37° 59° 17° (1936) 86° (1899) 0.08" 0"
Oct 24 36° 58° 19° (2006) 81° (1899) 0.08" 0"
Oct 25 36° 58° 19° (1987) 86° (1927) 0.07" 0"
Oct 26 36° 57° 16° (1942) 86° (1927) 0.08" 0"
Oct 27 35° 57° 15° (1997) 85° (1927) 0.07" 0.1"
Oct 28 35° 56° 6° (1925) 78° (1927) 0.07" 0"
Oct 29 35° 56° 6° (1925) 85° (1937) 0.08" 0"
Oct 30 34° 55° 0° (1925) 82° (1924) 0.07" 0"
Oct 31 34° 55° 15° (1917) 83° (1950) 0.07" 0"
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