Walla Walla, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -2° -27.8° (1957) 21.1° (1968) 2.25" 5.8"
February -26.7° (1950) 23.9° (1995) 1.97" 3.9"
March 13° -15.6° (1993) 26.1° (1964) 2.2" 1.1"
April 18° -6.7° (1966) 35.6° (1977) 1.83" 0"
May 22° -3.3° (1954) 37.8° (1983) 1.95" 0"
June 12° 27° 2.2° (1966) 41.7° (1992) 1.15" 0"
July 16° 32° 4.4° (1971) 45.6° (1975) 0.73" 0"
August 16° 32° 5.6° (1992) 45.6° (1961) 0.84" 0"
September 12° 26° 0° (1985) 40° (1950) 0.83" 0"
October 19° -7.2° (1971) 31.7° (1958) 1.77" 0.3"
November 10° -23.9° (1985) 26.7° (1975) 2.85" 2.4"
December -2° -31.1° (1968) 20° (1980) 2.51" 6.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 8.9° 22.8° 0° (1950) 31° (1974) 0.04" NA
Oct 2 8.9° 22.8° 2° (1950) 29° (1975) 0.04" NA
Oct 3 8.3° 22.2° 1° (1964) 32° (1958) 0.04" NA
Oct 4 8.3° 22.2° 1° (1964) 31° (1958) 0.04" NA
Oct 5 8.3° 21.7° 2° (1974) 29° (1979) 0.04" NA
Oct 6 7.8° 21.7° 0° (1974) 29° (1980) 0.04" NA
Oct 7 7.8° 21.1° 1° (1985) 31° (1980) 0.04" NA
Oct 8 7.8° 21.1° -1° (1985) 28° (1984) 0.04" NA
Oct 9 7.2° 20.6° -2° (1985) 28° (1989) 0.05" NA
Oct 10 7.2° 20.6° 1° (1960) 31° (1984) 0.05" NA
Oct 11 7.2° 20° 2° (1987) 27° (1952) 0.05" NA
Oct 12 7.2° 20° 1° (1969) 27° (1991) 0.05" NA
Oct 13 6.7° 20° -2° (1969) 28° (1976) 0.05" NA
Oct 14 6.7° 19.4° -2° (1969) 29° (1963) 0.05" NA
Oct 15 6.7° 19.4° -2° (1992) 30° (1991) 0.05" NA
Oct 16 6.7° 18.9° -2° (1999) 27° (1974) 0.06" NA
Oct 17 6.1° 18.9° -2° (1971) 27° (1975) 0.06" NA
Oct 18 6.1° 18.3° 0° (1964) 26° (1973) 0.06" NA
Oct 19 6.1° 17.8° -1° (1982) 24° (1981) 0.06" NA
Oct 20 5.6° 17.8° 0° (1957) 24° (1992) 0.06" NA
Oct 21 5.6° 17.2° -2° (1961) 24° (1952) 0.06" NA
Oct 22 5.6° 17.2° -1° (1984) 25° (1982) 0.07" NA
Oct 23 5.6° 16.7° 0° (1984) 24° (1959) 0.07" NA
Oct 24 16.7° -3° (1958) 27° (1977) 0.07" NA
Oct 25 16.1° -2° (1978) 26° (1955) 0.07" NA
Oct 26 16.1° -1° (1963) 29° (1986) 0.07" NA
Oct 27 15.6° -4° (1971) 21° (1981) 0.07" NA
Oct 28 4.4° 15.6° -7° (1971) 20° (1953) 0.08" NA
Oct 29 4.4° 15° -6° (1971) 21° (1975) 0.08" NA
Oct 30 4.4° 14.4° -4° (1991) 22° (1967) 0.08" NA
Oct 31 4.4° 14.4° -4° (1951) 22° (1967) 0.08" NA
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