Ontario, Oregon
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 18° 34° -25° (1962) 64° (1953) 1.29" NA
February 24° 43° -24° (1989) 66° (1963) 0.87" NA
March 31° 55° 10° (2002) 85° (1966) 0.86" NA
April 37° 65° 17° (1956) 94° (1977) 0.68" NA
May 45° 74° 25° (1975) 103° (1986) 0.93" NA
June 51° 84° 31° (1976) 108° (1970) 0.62" NA
July 57° 93° 34° (1986) 114° (2002) 0.3" NA
August 54° 91° 33° (1960) 113° (1961) 0.28" NA
September 45° 81° 24° (1985) 104° (1967) 0.47" NA
October 34° 66° 13° (2002) 94° (1997) 0.55" NA
November 27° 47° -6° (1993) 78° (2006) 1.19" NA
December 20° 36° -23° (1972) 66° (1955) 1.41" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 34° 61° 21° (1971) 84° (1966) 0.03" NA
Apr 2 34° 61° 20° (1953) 82° (1990) 0.02" NA
Apr 3 34° 61° 21° (1963) 80° (1990) 0.02" NA
Apr 4 34° 61° 20° (1970) 81° (1960) 0.02" NA
Apr 5 34° 62° 19° (1997) 82° (1959) 0.02" NA
Apr 6 35° 62° 17° (1956) 84° (1960) 0.02" NA
Apr 7 35° 62° 21° (1997) 84° (1977) 0.02" NA
Apr 8 35° 63° 19° (1973) 82° (1966) 0.02" NA
Apr 9 35° 63° 20° (1999) 82° (1996) 0.02" NA
Apr 10 35° 63° 19° (1999) 82° (1968) 0.02" NA
Apr 11 35° 63° 22° (1954) 80° (1949) 0.02" NA
Apr 12 36° 64° 22° (1970) 80° (1988) 0.02" NA
Apr 13 36° 64° 22° (1968) 83° (1988) 0.02" NA
Apr 14 36° 64° 22° (1995) 87° (1962) 0.02" NA
Apr 15 36° 65° 22° (2005) 84° (1985) 0.02" NA
Apr 16 37° 65° 20° (1982) 87° (1994) 0.02" NA
Apr 17 37° 65° 19° (1964) 87° (1994) 0.02" NA
Apr 18 37° 65° 27° (1964) 88° (1962) 0.02" NA
Apr 19 37° 66° 24° (1966) 88° (1962) 0.02" NA
Apr 20 37° 66° 21° (1961) 87° (1956) 0.02" NA
Apr 21 38° 66° 22° (1982) 88° (1956) 0.02" NA
Apr 22 38° 67° 24° (1951) 88° (1977) 0.02" NA
Apr 23 38° 67° 23° (1960) 91° (1977) 0.02" NA
Apr 24 38° 67° 22° (1950) 94° (1977) 0.03" NA
Apr 25 39° 68° 24° (2002) 93° (1977) 0.03" NA
Apr 26 39° 68° 27° (1969) 88° (1987) 0.03" NA
Apr 27 39° 68° 27° (1970) 93° (1987) 0.03" NA
Apr 28 40° 69° 26° (1966) 91° (1987) 0.03" NA
Apr 29 40° 69° 25° (1962) 90° (1968) 0.03" NA
Apr 30 40° 69° 24° (1950) 88° (1968) 0.03" NA
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