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
Oct 1 39° 74° 22° (1950) 91° (1992) 0.02" NA
Oct 2 39° 74° 26° (1954) 94° (1997) 0.01" NA
Oct 3 38° 73° 26° (1953) 93° (1963) 0.01" NA
Oct 4 38° 73° 22° (1973) 86° (1960) 0.01" NA
Oct 5 37° 72° 26° (1969) 86° (1958) 0.01" NA
Oct 6 37° 72° 20° (1974) 85° (1979) 0.01" NA
Oct 7 37° 72° 21° (1974) 90° (1971) 0.01" NA
Oct 8 36° 71° 21° (1974) 86° (1979) 0.01" NA
Oct 9 36° 71° 20° (1985) 89° (1988) 0.01" NA
Oct 10 36° 70° 18° (1985) 89° (1988) 0.01" NA
Oct 11 36° 69° 24° (1966) 84° (1971) 0.01" NA
Oct 12 35° 69° 23° (2002) 84° (1958) 0.02" NA
Oct 13 35° 68° 19° (1969) 82° (1950) 0.02" NA
Oct 14 35° 68° 17° (1969) 85° (1958) 0.02" NA
Oct 15 34° 67° 18° (1969) 84° (1958) 0.02" NA
Oct 16 34° 67° 19° (1970) 83° (1991) 0.02" NA
Oct 17 34° 66° 18° (1970) 80° (1973) 0.02" NA
Oct 18 33° 66° 20° (1948) 80° (1958) 0.02" NA
Oct 19 33° 65° 18° (1976) 82° (2003) 0.02" NA
Oct 20 33° 64° 17° (1976) 76° (2003) 0.02" NA
Oct 21 33° 64° 15° (1996) 79° (2003) 0.02" NA
Oct 22 32° 63° 17° (1996) 79° (2003) 0.02" NA
Oct 23 32° 62° 18° (1984) 77° (2003) 0.02" NA
Oct 24 32° 62° 22° (1949) 76° (1959) 0.02" NA
Oct 25 32° 61° 21° (1955) 80° (1977) 0.02" NA
Oct 26 31° 60° 17° (1978) 77° (1988) 0.02" NA
Oct 27 31° 60° 19° (1954) 74° (1958) 0.02" NA
Oct 28 31° 59° 20° (1954) 73° (1962) 0.02" NA
Oct 29 31° 58° 20° (1971) 77° (2003) 0.03" NA
Oct 30 30° 58° 19° (1960) 75° (1990) 0.03" NA
Oct 31 30° 57° 13° (2002) 72° (1966) 0.03" NA
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