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
Mar 1 28° 49° 11° (1960) 70° (1994) 0.03" NA
Mar 2 28° 50° 10° (2002) 70° (1986) 0.03" NA
Mar 3 28° 50° 10° (1989) 70° (1986) 0.03" NA
Mar 4 28° 51° 12° (1989) 68° (1987) 0.03" NA
Mar 5 29° 51° 14° (1954) 67° (1987) 0.03" NA
Mar 6 29° 52° 16° (1971) 64° (1965) 0.03" NA
Mar 7 29° 52° 16° (1985) 66° (2005) 0.03" NA
Mar 8 29° 53° 21° (1963) 70° (2005) 0.03" NA
Mar 9 30° 53° 19° (1974) 71° (2005) 0.03" NA
Mar 10 30° 53° 17° (1951) 74° (1972) 0.03" NA
Mar 11 30° 54° 16° (1951) 72° (2005) 0.03" NA
Mar 12 30° 54° 14° (1956) 73° (2005) 0.03" NA
Mar 13 30° 55° 19° (1962) 72° (2003) 0.03" NA
Mar 14 31° 55° 18° (1977) 74° (2003) 0.03" NA
Mar 15 31° 55° 16° (1959) 74° (1994) 0.03" NA
Mar 16 31° 56° 16° (1977) 74° (1972) 0.03" NA
Mar 17 31° 56° 21° (1980) 77° (1972) 0.03" NA
Mar 18 31° 57° 13° (1965) 75° (2004) 0.03" NA
Mar 19 32° 57° 12° (1965) 78° (2004) 0.03" NA
Mar 20 32° 57° 13° (1965) 78° (1997) 0.03" NA
Mar 21 32° 58° 17° (1965) 73° (1960) 0.03" NA
Mar 22 32° 58° 18° (1966) 75° (1960) 0.03" NA
Mar 23 32° 58° 16° (1966) 78° (1960) 0.03" NA
Mar 24 32° 59° 16° (1965) 78° (1956) 0.03" NA
Mar 25 33° 59° 18° (1965) 80° (1960) 0.02" NA
Mar 26 33° 59° 23° (1977) 79° (1988) 0.02" NA
Mar 27 33° 59° 20° (1972) 79° (1966) 0.02" NA
Mar 28 33° 60° 19° (1956) 83° (1966) 0.02" NA
Mar 29 33° 60° 18° (1987) 82° (1966) 0.02" NA
Mar 30 33° 60° 22° (1967) 85° (1966) 0.02" NA
Mar 31 34° 60° 19° (1954) 81° (2004) 0.02" NA
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