Westby, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -4° 17° -45° (1969) 55° (2002) 0.39" NA
February 25° -42° (1962) 66° (1992) 0.26" NA
March 15° 37° -31° (2002) 77° (1978) 0.56" NA
April 28° 53° -18° (1975) 91° (1980) 0.9" NA
May 41° 66° 13° (2005) 102° (1980) 1.76" NA
June 51° 74° 28° (1951) 103° (1988) 3" NA
July 55° 79° 36° (1987) 107° (1975) 2.48" NA
August 52° 79° 29° (1958) 108° (1983) 1.55" NA
September 40° 67° 15° (1961) 103° (1983) 1.41" NA
October 29° 55° -5° (1991) 92° (1992) 0.71" NA
November 14° 34° -26° (1996) 73° (1999) 0.4" NA
December 22° -42° (1983) 55° (1979) 0.41" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 55° 81° 43° (1971) 101° (1989) 0.06" NA
Aug 2 55° 81° 35° (2002) 99° (1983) 0.06" NA
Aug 3 55° 82° 36° (1978) 105° (1983) 0.06" NA
Aug 4 55° 82° 43° (1978) 103° (1961) 0.06" NA
Aug 5 55° 82° 41° (1977) 100° (1983) 0.05" NA
Aug 6 55° 81° 43° (1989) 108° (1983) 0.05" NA
Aug 7 54° 81° 44° (1964) 107° (1983) 0.05" NA
Aug 8 54° 81° 44° (1994) 107° (1958) 0.05" NA
Aug 9 54° 81° 42° (1966) 99° (1971) 0.05" NA
Aug 10 54° 81° 38° (1977) 98° (1978) 0.05" NA
Aug 11 54° 81° 36° (1964) 105° (1984) 0.05" NA
Aug 12 54° 81° 34° (1964) 103° (1949) 0.05" NA
Aug 13 53° 81° 39° (1977) 102° (1984) 0.05" NA
Aug 14 53° 81° 35° (1979) 100° (1961) 0.05" NA
Aug 15 53° 80° 36° (1975) 100° (1961) 0.05" NA
Aug 16 53° 80° 36° (1975) 100° (1958) 0.05" NA
Aug 17 52° 80° 34° (1950) 105° (1958) 0.05" NA
Aug 18 52° 80° 39° (2002) 96° (1958) 0.05" NA
Aug 19 52° 79° 36° (1956) 97° (1960) 0.05" NA
Aug 20 52° 79° 31° (2004) 98° (1971) 0.05" NA
Aug 21 51° 79° 36° (2004) 100° (1969) 0.04" NA
Aug 22 51° 78° 38° (1966) 103° (1971) 0.04" NA
Aug 23 50° 78° 38° (1950) 104° (1976) 0.04" NA
Aug 24 50° 78° 29° (1958) 100° (1952) 0.04" NA
Aug 25 50° 77° 33° (1964) 103° (1952) 0.05" NA
Aug 26 49° 77° 37° (1980) 96° (1971) 0.05" NA
Aug 27 49° 76° 34° (1982) 102° (1971) 0.05" NA
Aug 28 48° 76° 37° (1988) 100° (1971) 0.05" NA
Aug 29 48° 75° 37° (1988) 97° (1972) 0.05" NA
Aug 30 48° 75° 34° (1992) 98° (1948) 0.05" NA
Aug 31 47° 74° 35° (1994) 100° (1983) 0.05" NA
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