Seneca, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 24° -32° (1970) 62° (2002) 0.77" 9.6"
February 29° -28° (1996) 66° (1981) 0.65" 5.7"
March 21° 41° -20° (1962) 83° (1986) 1.91" 5.1"
April 33° 58° 0° (1975) 93° (2007) 3.16" 1.8"
May 46° 70° 10° (1967) 95° (2006) 3.86" 0.2"
June 57° 80° 35° (1969) 105° (1985) 4.59" 0"
July 61° 83° 37° (1971) 104° (1955) 4.43" 0"
August 58° 80° 38° (2004) 101° (1988) 3.87" 0"
September 48° 73° 22° (1967) 98° (1984) 3.24" 0"
October 35° 60° 12° (1972) 94° (1963) 2.37" 0.4"
November 22° 43° -14° (1977) 81° (2006) 1.66" 4.7"
December 27° -28° (1983) 69° (1998) 0.86" 9.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 14° 33° -4° (1988) 61° (1962) 0.04" 0.3"
Dec 2 14° 33° -10° (1976) 69° (1998) 0.03" 0.3"
Dec 3 13° 32° -16° (1985) 63° (1998) 0.04" 0.3"
Dec 4 13° 32° -9° (1991) 62° (1998) 0.03" 0.3"
Dec 5 12° 31° -11° (2005) 61° (2001) 0.04" 0.3"
Dec 6 12° 31° -16° (1972) 61° (2001) 0.03" 0.3"
Dec 7 11° 30° -21° (1972) 47° (1965) 0.03" 0.3"
Dec 8 11° 30° -17° (1976) 45° (1990) 0.03" 0.3"
Dec 9 11° 29° -20° (1958) 53° (1990) 0.03" 0.3"
Dec 10 10° 29° -17° (1958) 59° (1979) 0.04" 0.3"
Dec 11 10° 28° -12° (1955) 56° (1965) 0.03" 0.3"
Dec 12 10° 28° -19° (1958) 53° (1965) 0.03" 0.3"
Dec 13 28° -21° (1985) 58° (1968) 0.03" 0.3"
Dec 14 27° -19° (1985) 52° (1998) 0.02" 0.4"
Dec 15 27° -18° (1961) 58° (2002) 0.03" 0.3"
Dec 16 27° -15° (1963) 55° (1962) 0.02" 0.3"
Dec 17 26° -14° (1964) 50° (1962) 0.03" 0.3"
Dec 18 26° -22° (1983) 53° (1962) 0.02" 0.3"
Dec 19 26° -28° (1983) 51° (1979) 0.03" 0.3"
Dec 20 25° -25° (1983) 49° (1979) 0.02" 0.3"
Dec 21 25° -23° (1989) 55° (1967) 0.03" 0.3"
Dec 22 25° -22° (1983) 47° (1979) 0.03" 0.4"
Dec 23 25° -26° (1990) 44° (1957) 0.02" 0.3"
Dec 24 25° -28° (1983) 42° (1955) 0.03" 0.3"
Dec 25 24° -22° (1983) 45° (1963) 0.02" 0.4"
Dec 26 24° -21° (1990) 46° (1956) 0.03" 0.3"
Dec 27 24° -14° (1996) 51° (1959) 0.02" 0.3"
Dec 28 24° -21° (1993) 49° (1958) 0.02" 0.4"
Dec 29 24° -13° (2009) 55° (2002) 0.02" 0.3"
Dec 30 24° -20° (1973) 55° (1965) 0.02" 0.3"
Dec 31 24° -20° (1968) 56° (2004) 0.02" 0.3"
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