Royal City, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 24° 40° -28° (1957) 69° (1971) 0.99" NA
February 28° 47° -24° (1996) 71° (1971) 0.79" NA
March 32° 58° 3° (1993) 82° (1960) 0.72" NA
April 38° 67° 21° (1997) 96° (1977) 0.45" NA
May 46° 76° 24° (1954) 105° (1986) 0.56" NA
June 53° 83° 34° (1966) 109° (1961) 0.48" NA
July 58° 91° 41° (1981) 113° (1998) 0.37" NA
August 56° 91° 39° (1980) 115° (1961) 0.33" NA
September 47° 81° 26° (2000) 103° (1998) 0.4" NA
October 36° 67° 9° (2002) 89° (1958) 0.52" NA
November 30° 49° -19° (1985) 75° (1975) 1.15" NA
December 24° 39° -19° (1990) 70° (1980) 1.28" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 42° 72° 24° (1954) 92° (1998) 0.01" NA
May 2 42° 72° 28° (2006) 86° (1976) 0.01" NA
May 3 42° 72° 30° (1988) 90° (1966) 0.01" NA
May 4 43° 73° 30° (1959) 94° (1966) 0.01" NA
May 5 43° 73° 30° (1996) 99° (1966) 0.01" NA
May 6 43° 73° 30° (1959) 92° (1990) 0.01" NA
May 7 43° 73° 32° (1984) 96° (1992) 0.02" NA
May 8 44° 74° 28° (2002) 96° (1987) 0.02" NA
May 9 44° 74° 30° (2006) 96° (1987) 0.02" NA
May 10 44° 74° 31° (2006) 94° (1987) 0.02" NA
May 11 44° 75° 30° (1999) 94° (1993) 0.02" NA
May 12 45° 75° 32° (1985) 98° (1993) 0.02" NA
May 13 45° 75° 31° (2006) 95° (1993) 0.02" NA
May 14 45° 75° 32° (1955) 91° (1972) 0.02" NA
May 15 45° 76° 35° (1998) 98° (1973) 0.02" NA
May 16 46° 76° 30° (1974) 98° (1973) 0.02" NA
May 17 46° 76° 37° (1966) 99° (2006) 0.02" NA
May 18 46° 76° 34° (1965) 99° (2006) 0.02" NA
May 19 46° 77° 30° (2003) 98° (1954) 0.02" NA
May 20 47° 77° 37° (1982) 94° (1958) 0.02" NA
May 21 47° 77° 35° (1953) 97° (1958) 0.02" NA
May 22 47° 77° 32° (1960) 100° (1958) 0.02" NA
May 23 47° 78° 34° (1964) 100° (2001) 0.02" NA
May 24 48° 78° 37° (1978) 97° (1999) 0.02" NA
May 25 48° 78° 37° (1984) 99° (1958) 0.02" NA
May 26 48° 78° 36° (1984) 103° (1958) 0.02" NA
May 27 48° 79° 39° (1999) 97° (1958) 0.02" NA
May 28 49° 79° 35° (1955) 97° (2005) 0.02" NA
May 29 49° 79° 36° (1951) 98° (1983) 0.02" NA
May 30 49° 79° 39° (1976) 101° (1983) 0.02" NA
May 31 49° 80° 40° (1976) 105° (1986) 0.02" NA
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