Allerton, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -12° -1° -31.1° (1974) 18.3° (1952) 0.99" NA
February -8° -29.4° (1979) 21.7° (1972) 1.12" NA
March -3° -26.7° (1962) 29.4° (1991) 2.11" NA
April 16° -13.3° (1975) 32.8° (1989) 3.67" NA
May 10° 22° -1.1° (1976) 34.4° (1956) 4.25" NA
June 16° 27° 4.4° (1969) 38.3° (1988) 4.34" NA
July 18° 29° 7.2° (1971) 39.4° (1956) 4.85" NA
August 17° 28° 3.3° (1986) 40° (1954) 3.72" NA
September 12° 24° -1.1° (1951) 37.2° (1953) 4.1" NA
October 18° -8.9° (1972) 34.4° (1963) 3" NA
November -2° -22.2° (1964) 26.7° (1968) 2.3" NA
December -9° -31.1° (1989) 18.9° (1965) 1.16" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 7.2° 19.4° -1° (1966) 31° (1952) 0.13" NA
May 2 7.2° 19.4° -1° (1970) 32° (1952) 0.13" NA
May 3 7.8° 19.4° -1° (1976) 31° (1952) 0.13" NA
May 4 7.8° 20° -1° (1954) 32° (1952) 0.13" NA
May 5 7.8° 20° 1° (1954) 31° (1966) 0.13" NA
May 6 8.3° 20° 1° (1989) 31° (1966) 0.13" NA
May 7 8.3° 20.6° 1° (1954) 31° (1966) 0.13" NA
May 8 8.3° 20.6° 2° (1976) 31° (1963) 0.13" NA
May 9 8.9° 20.6° 1° (1966) 31° (1963) 0.13" NA
May 10 8.9° 21.1° -1° (1966) 31° (1962) 0.14" NA
May 11 8.9° 21.1° 1° (1952) 32° (1956) 0.14" NA
May 12 9.4° 21.1° 2° (1971) 34° (1956) 0.14" NA
May 13 9.4° 21.7° 1° (1953) 33° (1956) 0.14" NA
May 14 10° 21.7° -1° (1966) 31° (1991) 0.14" NA
May 15 10° 21.7° 1° (1959) 32° (1988) 0.14" NA
May 16 10° 22.2° 3° (1956) 30° (1962) 0.14" NA
May 17 10.6° 22.2° 3° (1973) 31° (1964) 0.14" NA
May 18 10.6° 22.2° 5° (1976) 32° (1951) 0.14" NA
May 19 10.6° 22.2° 4° (1968) 32° (1962) 0.14" NA
May 20 11.1° 22.8° 4° (1954) 31° (1975) 0.14" NA
May 21 11.1° 22.8° 4° (1963) 31° (1964) 0.14" NA
May 22 11.1° 22.8° 1° (1963) 31° (1956) 0.14" NA
May 23 11.7° 23.3° 4° (1963) 31° (1975) 0.14" NA
May 24 11.7° 23.3° 4° (1963) 32° (1967) 0.14" NA
May 25 11.7° 23.3° 6° (1976) 34° (1953) 0.14" NA
May 26 12.2° 23.9° 3° (1961) 32° (1967) 0.14" NA
May 27 12.2° 23.9° 4° (1971) 32° (1967) 0.14" NA
May 28 12.2° 23.9° 4° (1971) 31° (1977) 0.14" NA
May 29 12.8° 24.4° 3° (1984) 33° (1953) 0.14" NA
May 30 12.8° 24.4° 6° (1984) 33° (1953) 0.14" NA
May 31 12.8° 24.4° 4° (1972) 32° (1953) 0.14" NA
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