Onawa, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 31° -32° (1912) 69° (1944) 0.63" 7.2"
February 17° 37° -30° (1905) 71° (1987) 0.67" 6.9"
March 27° 50° -23° (1960) 91° (1986) 2.11" 7.6"
April 38° 64° 4° (1975) 97° (1910) 3.1" 1.4"
May 50° 74° 23° (1967) 106° (1934) 4.12" 0"
June 59° 84° 36° (1935) 106° (1946) 4.36" 0"
July 63° 87° 38° (1921) 110° (1936) 3.98" 0"
August 61° 85° 24° (1936) 108° (1936) 3.42" 0"
September 52° 78° 23° (1942) 104° (1939) 2.94" 0"
October 40° 66° -1° (1925) 97° (1938) 2.33" 0.6"
November 26° 47° -15° (1937) 82° (2006) 1.59" 2.8"
December 14° 33° -27° (1989) 70° (1998) 0.83" 7.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 46° 73° 26° (2003) 89° (1951) 0.09" NA
Oct 2 46° 72° 23° (2004) 94° (1953) 0.09" NA
Oct 3 45° 72° 27° (1950) 97° (1938) 0.09" NA
Oct 4 45° 72° 24° (1935) 95° (1938) 0.08" NA
Oct 5 44° 71° 26° (1988) 93° (1963) 0.08" NA
Oct 6 44° 71° 22° (1935) 91° (1963) 0.08" NA
Oct 7 44° 70° 24° (1974) 89° (1938) 0.08" NA
Oct 8 43° 70° 15° (2000) 87° (1938) 0.08" NA
Oct 9 43° 69° 20° (2000) 92° (1928) 0.08" NA
Oct 10 42° 69° 24° (1944) 88° (1930) 0.08" NA
Oct 11 42° 68° 21° (1987) 90° (1956) 0.08" NA
Oct 12 42° 68° 23° (1922) 93° (1975) 0.08" NA
Oct 13 41° 68° 20° (1909) 92° (1975) 0.08" NA
Oct 14 41° 67° 18° (1937) 89° (1958) 0.08" NA
Oct 15 40° 67° 17° (1943) 91° (1958) 0.08" NA
Oct 16 40° 66° 15° (1943) 88° (1938) 0.07" NA
Oct 17 39° 65° 17° (1922) 85° (1947) 0.07" NA
Oct 18 39° 65° 23° (1930) 89° (2003) 0.07" NA
Oct 19 39° 64° 12° (1972) 88° (2003) 0.07" NA
Oct 20 38° 64° 17° (1960) 91° (1947) 0.07" NA
Oct 21 38° 63° 16° (1913) 90° (1947) 0.07" NA
Oct 22 37° 63° 19° (1936) 89° (1899) 0.07" NA
Oct 23 37° 62° 18° (1981) 86° (1899) 0.07" NA
Oct 24 36° 61° 17° (1999) 82° (1952) 0.07" NA
Oct 25 36° 61° 18° (1976) 83° (1927) 0.07" NA
Oct 26 36° 60° 15° (1942) 85° (1955) 0.07" NA
Oct 27 35° 59° 16° (1997) 86° (1966) 0.07" NA
Oct 28 35° 59° -1° (1925) 82° (1944) 0.07" NA
Oct 29 34° 58° 9° (1925) 83° (1937) 0.07" NA
Oct 30 34° 57° 4° (1925) 87° (1950) 0.06" NA
Oct 31 33° 57° 11° (1923) 84° (1944) 0.06" NA
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