Roy, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 32° -41° (1997) 69° (1992) 0.5" 9"
February 13° 38° -39° (1996) 72° (1992) 0.31" 6.1"
March 22° 46° -33° (1989) 81° (2004) 0.81" 8"
April 31° 58° -5° (1986) 90° (1980) 1.14" 6.6"
May 40° 67° 10° (1954) 96° (1980) 2.73" 1.2"
June 48° 77° 29° (1969) 103° (1984) 2.3" 0.1"
July 53° 85° 36° (1972) 105° (2003) 1.97" 0"
August 52° 85° 30° (1992) 107° (1983) 1.53" 0"
September 42° 73° 16° (1985) 103° (1983) 1.22" 0.2"
October 32° 61° -11° (1991) 92° (1992) 0.73" 2.3"
November 20° 44° -29° (1959) 78° (1999) 0.44" 5.3"
December 10° 34° -41° (1989) 69° (1956) 0.5" 8.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Nov 1 26° 52° -6° (1984) 72° (1981) 0.02" NA
Nov 2 25° 51° -8° (1951) 72° (1965) 0.02" NA
Nov 3 25° 50° -10° (1991) 72° (1949) 0.02" NA
Nov 4 24° 50° 0° (1959) 78° (1975) 0.02" NA
Nov 5 24° 49° -9° (1959) 77° (1980) 0.02" NA
Nov 6 23° 48° -2° (1991) 77° (1997) 0.02" NA
Nov 7 23° 48° -1° (1966) 77° (1999) 0.02" NA
Nov 8 22° 47° -2° (1966) 75° (1999) 0.02" NA
Nov 9 22° 47° -14° (1966) 73° (1961) 0.02" NA
Nov 10 22° 46° -18° (1986) 71° (1956) 0.02" NA
Nov 11 21° 45° -15° (1966) 68° (1973) 0.02" NA
Nov 12 21° 45° -15° (1986) 78° (1999) 0.02" NA
Nov 13 20° 44° -29° (1959) 75° (1990) 0.02" NA
Nov 14 20° 44° -22° (1959) 75° (1999) 0.01" NA
Nov 15 20° 43° -18° (1959) 69° (1979) 0.01" NA
Nov 16 19° 43° -25° (1959) 73° (2001) 0.01" NA
Nov 17 19° 42° -21° (1955) 66° (1976) 0.01" NA
Nov 18 18° 42° -6° (1955) 66° (1949) 0.01" NA
Nov 19 18° 42° -16° (1950) 67° (1989) 0.01" NA
Nov 20 18° 41° -15° (1978) 69° (1968) 0.01" NA
Nov 21 17° 41° -22° (1977) 65° (1968) 0.01" NA
Nov 22 17° 40° -17° (1985) 70° (1954) 0.01" NA
Nov 23 17° 40° -27° (1985) 65° (1984) 0.01" NA
Nov 24 16° 40° -21° (1993) 64° (1957) 0.01" NA
Nov 25 16° 39° -15° (1993) 67° (1949) 0.01" NA
Nov 26 16° 39° -18° (1985) 70° (1998) 0.01" NA
Nov 27 15° 39° -18° (1985) 67° (1949) 0.01" NA
Nov 28 15° 38° -25° (1985) 65° (2002) 0.01" NA
Nov 29 15° 38° -21° (1985) 63° (1969) 0.01" NA
Nov 30 14° 38° -22° (1975) 63° (1969) 0.02" NA
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