Deep River, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 28° -24° (1979) 70° (1989) 1.08" NA
February 15° 35° -27° (1996) 72° (1976) 1.01" NA
March 26° 47° -20° (1962) 86° (1986) 2.34" NA
April 38° 60° 7° (1982) 93° (1965) 3.61" NA
May 49° 71° 25° (2005) 94° (1956) 4.28" NA
June 58° 81° 41° (1993) 105° (1988) 4.18" NA
July 63° 85° 45° (1972) 107° (1988) 4.11" NA
August 61° 83° 40° (1950) 107° (1988) 4.31" NA
September 51° 75° 28° (1964) 99° (1955) 3.74" NA
October 40° 63° 14° (1972) 93° (1953) 2.76" NA
November 28° 47° -5° (1976) 79° (1999) 2.59" NA
December 16° 33° -23° (1989) 71° (1998) 1.33" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 21° 39° 0° (1976) 65° (1951) 0.07" NA
Dec 2 21° 38° 1° (1976) 69° (1951) 0.06" NA
Dec 3 20° 38° -6° (1985) 66° (1961) 0.06" NA
Dec 4 20° 37° -3° (1991) 64° (1956) 0.06" NA
Dec 5 20° 37° -3° (1991) 71° (1998) 0.06" NA
Dec 6 19° 36° -11° (1972) 67° (2001) 0.06" NA
Dec 7 19° 36° -13° (1976) 59° (1953) 0.05" NA
Dec 8 19° 36° -7° (1958) 58° (1970) 0.05" NA
Dec 9 18° 35° -13° (1958) 59° (1991) 0.05" NA
Dec 10 18° 35° -6° (1948) 60° (1979) 0.05" NA
Dec 11 18° 34° -16° (1972) 68° (1949) 0.05" NA
Dec 12 17° 34° -10° (1989) 59° (1968) 0.04" NA
Dec 13 17° 34° -11° (1958) 61° (1975) 0.04" NA
Dec 14 16° 33° -12° (1985) 60° (1975) 0.04" NA
Dec 15 16° 33° -17° (1989) 59° (2006) 0.04" NA
Dec 16 16° 33° -14° (1951) 58° (1984) 0.04" NA
Dec 17 16° 32° -9° (1950) 61° (2006) 0.04" NA
Dec 18 15° 32° -18° (1985) 58° (1962) 0.04" NA
Dec 19 15° 32° -19° (1983) 63° (2002) 0.04" NA
Dec 20 15° 32° -14° (1963) 51° (1967) 0.04" NA
Dec 21 14° 31° -20° (1989) 56° (1967) 0.04" NA
Dec 22 14° 31° -20° (1989) 58° (1957) 0.04" NA
Dec 23 14° 31° -22° (1989) 60° (1965) 0.03" NA
Dec 24 13° 30° -23° (1989) 56° (1982) 0.03" NA
Dec 25 13° 30° -19° (1983) 55° (1960) 0.03" NA
Dec 26 13° 30° -15° (2000) 54° (1955) 0.03" NA
Dec 27 12° 30° -14° (1950) 54° (1958) 0.03" NA
Dec 28 12° 30° -12° (1961) 69° (1984) 0.03" NA
Dec 29 12° 29° -6° (1963) 63° (1984) 0.03" NA
Dec 30 12° 29° -8° (1976) 62° (1965) 0.03" NA
Dec 31 11° 29° -14° (1968) 64° (1965) 0.03" NA
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