Plymouth, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 29° 40° -22° (1957) 67° (1990) 1.01" NA
February 31° 46° -7° (1996) 70° (1982) 0.77" NA
March 35° 56° 12° (1993) 79° (1960) 0.75" NA
April 41° 63° 29° (1997) 90° (1977) 0.62" NA
May 48° 71° 34° (2002) 104° (1983) 0.65" NA
June 54° 78° 35° (1974) 106° (1961) 0.43" NA
July 60° 86° 43° (1963) 110° (1960) 0.25" NA
August 60° 86° 43° (1964) 111° (1961) 0.37" NA
September 52° 76° 34° (1983) 103° (1955) 0.39" NA
October 43° 64° 20° (2002) 87° (1988) 0.59" NA
November 36° 49° -2° (1955) 75° (1999) 1.18" NA
December 30° 41° -9° (1983) 68° (2007) 1.12" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Feb 1 29° 42° -7° (1979) 66° (1971) 0.03" NA
Feb 2 29° 42° -5° (1996) 57° (1971) 0.03" NA
Feb 3 29° 42° -7° (1996) 58° (1968) 0.03" NA
Feb 4 30° 43° -6° (1996) 58° (2006) 0.03" NA
Feb 5 30° 43° -6° (1989) 60° (1967) 0.03" NA
Feb 6 30° 43° -3° (1989) 65° (1965) 0.03" NA
Feb 7 30° 44° 2° (1989) 60° (1999) 0.03" NA
Feb 8 30° 44° 4° (1989) 60° (1999) 0.03" NA
Feb 9 30° 44° 4° (1989) 65° (1996) 0.03" NA
Feb 10 30° 44° 7° (1989) 56° (1958) 0.03" NA
Feb 11 30° 45° 14° (1982) 65° (1977) 0.03" NA
Feb 12 30° 45° 20° (1981) 63° (1988) 0.03" NA
Feb 13 30° 45° 20° (1995) 66° (1977) 0.03" NA
Feb 14 31° 46° 12° (1995) 63° (1971) 0.03" NA
Feb 15 31° 46° 12° (1956) 59° (1961) 0.03" NA
Feb 16 31° 46° 10° (1956) 70° (1982) 0.03" NA
Feb 17 31° 47° 12° (1956) 65° (1977) 0.03" NA
Feb 18 31° 47° 15° (2006) 67° (1965) 0.03" NA
Feb 19 31° 47° 14° (2006) 61° (1977) 0.03" NA
Feb 20 31° 47° 13° (2006) 66° (1982) 0.03" NA
Feb 21 32° 48° 15° (1957) 66° (1995) 0.03" NA
Feb 22 32° 48° 17° (1993) 66° (1988) 0.02" NA
Feb 23 32° 49° 17° (1993) 66° (1958) 0.02" NA
Feb 24 32° 49° 20° (1962) 67° (1961) 0.02" NA
Feb 25 32° 49° 10° (1993) 69° (1995) 0.02" NA
Feb 26 32° 50° 8° (1993) 64° (1957) 0.02" NA
Feb 27 33° 50° 12° (1993) 63° (1957) 0.02" NA
Feb 28 33° 50° 12° (1960) 70° (1972) 0.02" NA
Feb 29 33° 50° 14° (1960) 67° (1972) 0.02" NA
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