Jefferson Proving Ground, Indiana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 23° 39° -17° (1994) 75° (1950) 3.13" NA
February 26° 44° -12° (1951) 76° (2000) 2.96" NA
March 34° 55° -2° (1980) 84° (1981) 4.26" NA
April 43° 65° 10° (2007) 93° (1957) 4.28" NA
May 53° 75° 27° (1963) 97° (1953) 4.96" NA
June 62° 83° 37° (1966) 103° (1988) 4.36" NA
July 66° 87° 48° (1972) 108° (1954) 4.39" NA
August 65° 85° 43° (1986) 104° (1988) 4.1" NA
September 57° 79° 33° (1995) 108° (1953) 2.92" NA
October 45° 67° 23° (1981) 96° (1953) 3.2" NA
November 36° 55° 0° (1950) 88° (1950) 3.84" NA
December 27° 44° -18° (1989) 77° (1982) 3.69" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 38° 61° 25° (1954) 85° (1963) 0.14" NA
Apr 2 39° 61° 20° (1961) 84° (1963) 0.14" NA
Apr 3 39° 61° 24° (1972) 82° (1963) 0.14" NA
Apr 4 39° 62° 26° (1975) 82° (1956) 0.14" NA
Apr 5 40° 62° 23° (2007) 87° (1988) 0.14" NA
Apr 6 40° 62° 20° (2007) 84° (1955) 0.14" NA
Apr 7 40° 62° 16° (2007) 85° (2001) 0.14" NA
Apr 8 40° 63° 10° (2007) 85° (1954) 0.14" NA
Apr 9 41° 63° 18° (2007) 85° (1967) 0.14" NA
Apr 10 41° 63° 18° (2007) 85° (1953) 0.14" NA
Apr 11 41° 64° 27° (1960) 84° (2001) 0.14" NA
Apr 12 42° 64° 28° (1973) 84° (1977) 0.14" NA
Apr 13 42° 64° 21° (1950) 85° (1955) 0.14" NA
Apr 14 42° 65° 22° (1962) 85° (1977) 0.14" NA
Apr 15 42° 65° 29° (1962) 84° (1976) 0.14" NA
Apr 16 43° 65° 26° (2007) 85° (1977) 0.14" NA
Apr 17 43° 66° 21° (1997) 87° (1976) 0.14" NA
Apr 18 43° 66° 23° (1997) 89° (1977) 0.14" NA
Apr 19 44° 66° 28° (1956) 87° (1955) 0.14" NA
Apr 20 44° 67° 30° (1953) 90° (1976) 0.14" NA
Apr 21 44° 67° 29° (1956) 89° (1976) 0.14" NA
Apr 22 45° 67° 31° (1982) 93° (1957) 0.14" NA
Apr 23 45° 68° 29° (1986) 89° (1976) 0.15" NA
Apr 24 45° 68° 32° (1986) 87° (1948) 0.15" NA
Apr 25 46° 68° 32° (1967) 90° (1948) 0.15" NA
Apr 26 46° 69° 33° (1972) 90° (1954) 0.15" NA
Apr 27 46° 69° 32° (1976) 91° (1994) 0.15" NA
Apr 28 47° 69° 31° (1976) 87° (1957) 0.15" NA
Apr 29 47° 69° 32° (1988) 87° (1951) 0.15" NA
Apr 30 47° 70° 33° (1958) 87° (1962) 0.15" NA
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