Ontario, Indiana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 16° 30° -22° (1994) 61° (1997) 2" 7.2"
February 18° 34° -22° (1963) 73° (2000) 1.72" 6.3"
March 26° 46° -10° (1967) 79° (1990) 2.29" 2.9"
April 37° 59° 8° (1972) 87° (1990) 3.39" 0.8"
May 48° 69° 21° (1966) 93° (1977) 4.07" 0"
June 58° 80° 32° (1972) 104° (1988) 4.19" 0"
July 61° 83° 40° (2001) 101° (1988) 3.89" 0"
August 60° 81° 36° (1965) 100° (1964) 4.05" 0"
September 52° 74° 28° (1991) 95° (1983) 3.3" 0"
October 41° 62° 17° (1966) 88° (1971) 3.25" 0.4"
November 31° 48° 6° (1976) 76° (2003) 3.16" 1.5"
December 21° 35° -28° (2000) 70° (1982) 2.54" 10.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 43° 65° 25° (1963) 86° (1962) 0.1" 0"
May 2 43° 65° 28° (1966) 83° (1992) 0.11" 0"
May 3 43° 65° 27° (1970) 83° (1965) 0.12" 0"
May 4 44° 66° 24° (1966) 85° (2001) 0.11" 0"
May 5 44° 66° 28° (1979) 83° (1980) 0.12" 0"
May 6 44° 66° 25° (1968) 85° (1980) 0.11" 0"
May 7 45° 67° 25° (1974) 86° (2004) 0.12" 0"
May 8 45° 67° 27° (1976) 83° (1964) 0.11" 0"
May 9 45° 67° 29° (1980) 86° (2000) 0.12" 0"
May 10 46° 68° 21° (1966) 87° (1963) 0.12" 0"
May 11 46° 68° 32° (1966) 86° (1993) 0.13" 0"
May 12 47° 68° 30° (1976) 84° (1982) 0.13" 0"
May 13 47° 69° 28° (1996) 87° (1982) 0.13" 0"
May 14 47° 69° 29° (1973) 87° (1982) 0.14" 0"
May 15 48° 69° 31° (1973) 89° (1982) 0.13" 0"
May 16 48° 69° 29° (1984) 89° (1998) 0.13" 0"
May 17 48° 70° 27° (1973) 89° (1991) 0.13" 0"
May 18 49° 70° 28° (1973) 89° (1962) 0.14" 0"
May 19 49° 70° 31° (2002) 91° (1962) 0.14" 0"
May 20 49° 71° 35° (1976) 93° (1977) 0.14" 0"
May 21 50° 71° 31° (1967) 92° (1977) 0.14" 0"
May 22 50° 71° 33° (1968) 92° (1977) 0.14" 0"
May 23 50° 72° 27° (1963) 89° (1964) 0.14" 0"
May 24 51° 72° 32° (1963) 88° (1964) 0.14" 0"
May 25 51° 72° 31° (1992) 90° (1975) 0.14" 0"
May 26 52° 73° 36° (1983) 91° (1977) 0.15" 0"
May 27 52° 73° 32° (1983) 88° (2010) 0.14" 0"
May 28 52° 73° 34° (1992) 87° (1978) 0.15" 0"
May 29 53° 74° 31° (1966) 91° (1977) 0.15" 0"
May 30 53° 74° 35° (1964) 89° (1980) 0.15" 0"
May 31 53° 74° 33° (1966) 90° (1988) 0.15" 0"
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