Rocky Butte, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 17° 29° -22° (1950) 59° (1945) 1.16" NA
February 22° 39° -26° (1950) 63° (1932) 1.24" NA
March 30° 51° -7° (1951) 76° (1994) 1" NA
April 37° 62° 15° (1936) 96° (1934) 1.11" NA
May 44° 71° 19° (1954) 98° (1934) 1.08" NA
June 51° 78° 30° (1973) 102° (1992) 1.22" NA
July 57° 85° 35° (1973) 109° (1939) 0.8" NA
August 56° 85° 34° (1965) 106° (1998) 0.65" NA
September 47° 76° 20° (1945) 101° (1938) 0.54" NA
October 35° 60° 8° (1935) 86° (1943) 0.76" NA
November 28° 41° -3° (1993) 70° (1933) 1.45" NA
December 19° 31° -21° (1948) 67° (1932) 1.82" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 16° 28° -17° (1979) 46° (1963) 0.05" NA
Jan 2 16° 28° -11° (1949) 45° (1936) 0.05" NA
Jan 3 16° 28° -15° (1949) 48° (1939) 0.04" NA
Jan 4 16° 28° -14° (1971) 44° (1954) 0.04" NA
Jan 5 16° 28° -8° (1950) 54° (1934) 0.04" NA
Jan 6 16° 28° -4° (2004) 44° (1956) 0.04" NA
Jan 7 16° 28° -12° (1993) 56° (1945) 0.04" NA
Jan 8 16° 28° -12° (1937) 57° (1945) 0.04" NA
Jan 9 16° 28° -10° (1974) 53° (1953) 0.04" NA
Jan 10 16° 28° -5° (1937) 52° (2006) 0.04" NA
Jan 11 16° 28° -13° (1937) 50° (2006) 0.04" NA
Jan 12 16° 28° -12° (1937) 52° (1953) 0.04" NA
Jan 13 16° 28° -5° (1950) 59° (1945) 0.04" NA
Jan 14 16° 29° -17° (1950) 50° (1945) 0.04" NA
Jan 15 16° 29° -22° (1950) 52° (1961) 0.03" NA
Jan 16 16° 29° -11° (1949) 50° (1961) 0.03" NA
Jan 17 16° 29° -10° (1969) 50° (1944) 0.03" NA
Jan 18 16° 29° -15° (1943) 45° (1944) 0.03" NA
Jan 19 16° 29° -8° (1957) 52° (1944) 0.03" NA
Jan 20 17° 30° -20° (1949) 49° (1967) 0.03" NA
Jan 21 17° 30° -6° (1937) 52° (1934) 0.03" NA
Jan 22 17° 30° -9° (1957) 48° (1934) 0.03" NA
Jan 23 17° 30° -9° (1932) 51° (1934) 0.03" NA
Jan 24 17° 31° -18° (1949) 47° (1947) 0.03" NA
Jan 25 17° 31° -22° (1949) 48° (1942) 0.04" NA
Jan 26 18° 31° -8° (1950) 48° (1942) 0.04" NA
Jan 27 18° 31° -17° (1949) 50° (1974) 0.04" NA
Jan 28 18° 32° -21° (1949) 53° (1974) 0.04" NA
Jan 29 18° 32° -20° (1950) 52° (1974) 0.04" NA
Jan 30 18° 32° -20° (1950) 52° (1953) 0.04" NA
Jan 31 19° 33° -20° (1950) 58° (1953) 0.04" NA
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