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
Sep 1 14.4° 26.7° 9° (1965) 37° (1953) 0.13" NA
Sep 2 13.9° 26.7° 7° (1952) 36° (1953) 0.13" NA
Sep 3 13.9° 26.7° 4° (1974) 34° (1960) 0.13" NA
Sep 4 13.9° 26.1° 4° (1974) 37° (1954) 0.14" NA
Sep 5 13.9° 26.1° 4° (1962) 35° (1954) 0.14" NA
Sep 6 13.3° 26.1° 6° (1988) 36° (1954) 0.14" NA
Sep 7 13.3° 26.1° 6° (1986) 36° (1990) 0.14" NA
Sep 8 12.8° 25.6° 2° (1986) 34° (1971) 0.14" NA
Sep 9 12.8° 25.6° 2° (1986) 37° (1955) 0.14" NA
Sep 10 12.8° 25.6° 5° (1976) 33° (1978) 0.14" NA
Sep 11 12.2° 25.6° 6° (1967) 33° (1953) 0.14" NA
Sep 12 12.2° 25° 4° (1975) 32° (1952) 0.14" NA
Sep 13 12.2° 25° 3° (1974) 33° (1956) 0.14" NA
Sep 14 11.7° 25° 3° (1974) 33° (1955) 0.14" NA
Sep 15 11.7° 24.4° 3° (1979) 35° (1955) 0.14" NA
Sep 16 11.7° 24.4° 4° (1979) 33° (1955) 0.14" NA
Sep 17 11.1° 24.4° 2° (1981) 36° (1953) 0.14" NA
Sep 18 11.1° 23.9° 2° (1981) 34° (1955) 0.14" NA
Sep 19 10.6° 23.9° 5° (1952) 33° (1972) 0.14" NA
Sep 20 10.6° 23.9° 2° (1962) 33° (1972) 0.14" NA
Sep 21 10.6° 23.3° 3° (1982) 32° (1956) 0.14" NA
Sep 22 10° 23.3° 1° (1974) 29° (1973) 0.14" NA
Sep 23 10° 23.3° 2° (1989) 31° (1988) 0.14" NA
Sep 24 9.4° 22.8° 1° (1965) 30° (1958) 0.14" NA
Sep 25 9.4° 22.8° 2° (1989) 31° (1956) 0.13" NA
Sep 26 9.4° 22.8° 3° (1982) 33° (1956) 0.13" NA
Sep 27 8.9° 22.2° 1° (1985) 32° (1956) 0.13" NA
Sep 28 8.9° 22.2° -1° (1951) 37° (1953) 0.13" NA
Sep 29 8.3° 22.2° 1° (1974) 33° (1953) 0.13" NA
Sep 30 8.3° 21.7° 0° (1972) 32° (1952) 0.12" NA
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