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
Dec 1 6.7° -19° (1985) 16° (1958) 0.09" NA
Dec 2 6.7° -14° (1985) 18° (1958) 0.09" NA
Dec 3 -0.6° 6.1° -9° (1985) 17° (1975) 0.09" NA
Dec 4 -0.6° 6.1° -16° (1972) 18° (1975) 0.09" NA
Dec 5 -0.6° 6.1° -15° (1972) 16° (1954) 0.09" NA
Dec 6 -0.6° 5.6° -14° (1956) 17° (1987) 0.09" NA
Dec 7 -0.6° 5.6° -19° (1972) 15° (1962) 0.09" NA
Dec 8 -1.1° 5.6° -22° (1972) 19° (1975) 0.09" NA
Dec 9 -1.1° 5.6° -23° (1972) 17° (1987) 0.08" NA
Dec 10 -1.1° 5.6° -23° (1972) 18° (1993) 0.08" NA
Dec 11 -1.1° -20° (1972) 17° (1955) 0.08" NA
Dec 12 -1.1° -18° (1972) 15° (1988) 0.08" NA
Dec 13 -1.7° -19° (1972) 17° (1969) 0.08" NA
Dec 14 -1.7° -18° (1972) 16° (1969) 0.08" NA
Dec 15 -1.7° -18° (1972) 17° (1959) 0.08" NA
Dec 16 -1.7° 4.4° -21° (1964) 17° (1973) 0.08" NA
Dec 17 -1.7° 4.4° -22° (1964) 17° (1994) 0.08" NA
Dec 18 -1.7° 4.4° -18° (1964) 16° (1994) 0.08" NA
Dec 19 -1.7° 4.4° -17° (1984) 15° (1994) 0.08" NA
Dec 20 -2.2° 4.4° -24° (1990) 18° (1994) 0.08" NA
Dec 21 -2.2° 4.4° -26° (1990) 17° (1955) 0.08" NA
Dec 22 -2.2° 4.4° -23° (1983) 16° (1950) 0.08" NA
Dec 23 -2.2° 4.4° -26° (1983) 18° (1950) 0.08" NA
Dec 24 -2.2° 4.4° -25° (1983) 15° (1950) 0.08" NA
Dec 25 -2.2° 3.9° -15° (1990) 18° (1980) 0.08" NA
Dec 26 -2.2° 3.9° -11° (1983) 20° (1980) 0.08" NA
Dec 27 -2.2° 3.9° -11° (1983) 19° (1980) 0.07" NA
Dec 28 -2.2° 3.9° -22° (1990) 16° (1965) 0.07" NA
Dec 29 -2.2° 3.9° -27° (1968) 18° (1975) 0.07" NA
Dec 30 -2.2° 3.9° -31° (1968) 14° (1952) 0.07" NA
Dec 31 -2.2° 3.9° -23° (1968) 16° (1958) 0.07" NA
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