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
May 1 44° 66° 30° (1950) 88° (1952) 0.13" NA
May 2 44° 66° 29° (1970) 89° (1952) 0.13" NA
May 3 44° 67° 25° (2005) 88° (1949) 0.13" NA
May 4 45° 67° 28° (2005) 89° (1952) 0.13" NA
May 5 45° 67° 33° (1958) 90° (1949) 0.13" NA
May 6 45° 68° 30° (1989) 87° (2000) 0.13" NA
May 7 46° 68° 31° (1954) 89° (2004) 0.14" NA
May 8 46° 68° 34° (1976) 88° (1963) 0.14" NA
May 9 47° 69° 32° (1966) 89° (1963) 0.14" NA
May 10 47° 69° 30° (1966) 89° (1963) 0.14" NA
May 11 47° 69° 34° (1966) 89° (1958) 0.14" NA
May 12 48° 70° 34° (1979) 94° (1956) 0.14" NA
May 13 48° 70° 35° (1997) 90° (1956) 0.14" NA
May 14 48° 71° 35° (1981) 90° (1988) 0.14" NA
May 15 49° 71° 34° (1997) 87° (1977) 0.14" NA
May 16 49° 71° 34° (1997) 87° (1962) 0.14" NA
May 17 50° 72° 37° (1997) 88° (1987) 0.14" NA
May 18 50° 72° 38° (2002) 89° (1975) 0.14" NA
May 19 50° 72° 36° (2002) 90° (1975) 0.14" NA
May 20 51° 73° 37° (2002) 90° (1975) 0.14" NA
May 21 51° 73° 34° (2002) 90° (1975) 0.14" NA
May 22 51° 73° 33° (1963) 90° (1970) 0.14" NA
May 23 52° 74° 34° (1963) 89° (1955) 0.14" NA
May 24 52° 74° 40° (1979) 89° (1978) 0.14" NA
May 25 52° 74° 39° (1992) 93° (1967) 0.14" NA
May 26 53° 75° 34° (1961) 92° (1967) 0.14" NA
May 27 53° 75° 37° (1971) 90° (1980) 0.14" NA
May 28 53° 75° 39° (1992) 90° (1980) 0.14" NA
May 29 54° 76° 38° (1984) 92° (1991) 0.14" NA
May 30 54° 76° 42° (1965) 89° (2006) 0.14" NA
May 31 54° 76° 41° (1965) 91° (1988) 0.14" NA
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