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
Sep 1 57° 80° 40° (1949) 98° (1953) 0.14" NA
Sep 2 56° 80° 43° (1967) 97° (1953) 0.14" NA
Sep 3 56° 79° 40° (1974) 97° (2000) 0.14" NA
Sep 4 56° 79° 40° (1974) 94° (1954) 0.14" NA
Sep 5 55° 79° 41° (1962) 96° (1990) 0.14" NA
Sep 6 55° 78° 42° (1962) 95° (1985) 0.14" NA
Sep 7 54° 78° 41° (1956) 95° (1960) 0.13" NA
Sep 8 54° 78° 43° (1949) 96° (1971) 0.13" NA
Sep 9 54° 77° 44° (1949) 99° (1955) 0.13" NA
Sep 10 53° 77° 40° (1976) 96° (1983) 0.13" NA
Sep 11 53° 77° 40° (1955) 92° (1953) 0.13" NA
Sep 12 53° 76° 39° (1955) 96° (2000) 0.13" NA
Sep 13 52° 76° 39° (1953) 91° (1956) 0.13" NA
Sep 14 52° 76° 38° (1996) 91° (1955) 0.13" NA
Sep 15 52° 76° 34° (2007) 95° (1955) 0.13" NA
Sep 16 51° 75° 35° (2007) 92° (1955) 0.13" NA
Sep 17 51° 75° 39° (1980) 93° (1955) 0.12" NA
Sep 18 51° 75° 38° (1981) 93° (1948) 0.12" NA
Sep 19 50° 74° 33° (1991) 96° (1948) 0.12" NA
Sep 20 50° 74° 33° (1991) 89° (1970) 0.12" NA
Sep 21 50° 74° 33° (1991) 87° (1986) 0.12" NA
Sep 22 49° 73° 31° (1995) 88° (1988) 0.12" NA
Sep 23 49° 73° 31° (1995) 82° (1956) 0.12" NA
Sep 24 48° 73° 32° (1995) 90° (1984) 0.11" NA
Sep 25 48° 72° 34° (1989) 90° (1956) 0.11" NA
Sep 26 48° 72° 30° (1984) 89° (1953) 0.11" NA
Sep 27 47° 71° 34° (1985) 89° (1971) 0.11" NA
Sep 28 47° 71° 28° (1964) 98° (1953) 0.11" NA
Sep 29 47° 71° 31° (1949) 93° (1953) 0.11" NA
Sep 30 46° 70° 33° (2003) 90° (1952) 0.1" NA
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