Walla Walla, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -1° -27.8° (1957) 21.1° (1968) 2.53" 1.9"
February -26.7° (1950) 23.9° (1995) 1.83" 3.1"
March 13° -15.6° (1993) 26.1° (1964) 2.3" 1"
April 17° -6.7° (1966) 35.6° (1977) 1.92" 0.1"
May 21° -3.3° (1954) 37.8° (1983) 2.13" 0"
June 12° 26° 2.2° (1966) 41.7° (1992) 1.28" 0"
July 16° 32° 4.4° (1971) 45.6° (1975) 0.59" 0"
August 16° 31° 5.6° (1992) 45.6° (1961) 0.57" 0"
September 11° 26° 0° (1985) 40° (1950) 0.75" 0"
October 18° -7.2° (1971) 31.7° (1958) 1.68" 0.1"
November -23.9° (1985) 26.7° (1975) 2.87" 1.2"
December -2° -31.1° (1968) 20° (1980) 2.47" 4.4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 22° 0° (1950) 31° (1974) 0.03" 0"
Oct 2 21° 2° (1950) 29° (1975) 0.04" 0"
Oct 3 21° 1° (1964) 32° (1958) 0.03" 0"
Oct 4 21° 1° (1964) 31° (1958) 0.03" 0"
Oct 5 21° 2° (1974) 29° (1979) 0.04" 0"
Oct 6 20° 0° (1974) 29° (1980) 0.03" 0"
Oct 7 20° 1° (1985) 31° (1980) 0.04" 0"
Oct 8 20° -1° (1985) 28° (1984) 0.03" 0"
Oct 9 19° -2° (1985) 28° (1989) 0.04" 0"
Oct 10 19° 1° (1960) 31° (1984) 0.04" 0"
Oct 11 19° 1° (2008) 27° (1952) 0.04" 0"
Oct 12 19° 1° (1969) 27° (1991) 0.04" 0"
Oct 13 18° -2° (1969) 28° (1976) 0.05" 0"
Oct 14 18° -2° (1969) 29° (1963) 0.05" 0"
Oct 15 18° -2° (1992) 30° (1991) 0.05" 0"
Oct 16 18° -2° (1999) 27° (1974) 0.05" 0"
Oct 17 17° -2° (1971) 27° (1975) 0.06" 0"
Oct 18 17° 0° (1964) 26° (1973) 0.05" 0"
Oct 19 17° -1° (1982) 24° (1981) 0.06" 0"
Oct 20 16° 0° (1957) 24° (1992) 0.06" 0"
Oct 21 16° -2° (1961) 24° (1952) 0.07" 0"
Oct 22 16° -1° (1984) 25° (1982) 0.07" 0"
Oct 23 16° 0° (1984) 24° (1959) 0.07" 0"
Oct 24 15° -3° (1958) 27° (1977) 0.07" 0"
Oct 25 15° -2° (1978) 26° (1955) 0.07" 0"
Oct 26 15° -1° (1963) 29° (1986) 0.07" 0"
Oct 27 14° -4° (1971) 21° (1981) 0.08" 0.1"
Oct 28 14° -7° (1971) 20° (1953) 0.07" 0"
Oct 29 14° -6° (1971) 21° (1975) 0.08" 0"
Oct 30 14° -4° (1991) 22° (1967) 0.09" 0"
Oct 31 13° -6° (2006) 22° (2008) 0.08" 0"
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