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
Jul 1 53° 77° 40° (1954) 93° (1948) 0.1" NA
Jul 2 54° 77° 39° (1968) 94° (1949) 0.1" NA
Jul 3 54° 78° 36° (1987) 92° (1990) 0.1" NA
Jul 4 54° 78° 43° (1972) 100° (1989) 0.09" NA
Jul 5 54° 78° 40° (1958) 103° (1948) 0.09" NA
Jul 6 54° 78° 42° (1958) 100° (1981) 0.09" NA
Jul 7 54° 78° 36° (1958) 96° (1961) 0.09" NA
Jul 8 54° 78° 36° (1987) 103° (1989) 0.09" NA
Jul 9 54° 79° 43° (1996) 99° (1970) 0.09" NA
Jul 10 54° 79° 40° (1951) 103° (1980) 0.09" NA
Jul 11 54° 79° 40° (1951) 102° (1980) 0.09" NA
Jul 12 55° 79° 42° (1987) 98° (1958) 0.08" NA
Jul 13 55° 79° 40° (1967) 99° (1983) 0.08" NA
Jul 14 55° 79° 41° (1958) 105° (1983) 0.08" NA
Jul 15 55° 80° 46° (1993) 103° (1983) 0.08" NA
Jul 16 55° 80° 43° (1976) 102° (1949) 0.08" NA
Jul 17 55° 80° 46° (2000) 98° (1974) 0.08" NA
Jul 18 55° 80° 43° (1982) 100° (1974) 0.08" NA
Jul 19 55° 80° 42° (1949) 104° (1960) 0.08" NA
Jul 20 55° 80° 43° (1972) 101° (1955) 0.08" NA
Jul 21 55° 80° 42° (1980) 102° (1964) 0.07" NA
Jul 22 55° 80° 46° (1949) 104° (1963) 0.07" NA
Jul 23 55° 80° 44° (1998) 100° (1960) 0.07" NA
Jul 24 55° 81° 44° (2001) 100° (1976) 0.07" NA
Jul 25 55° 81° 44° (1962) 106° (2007) 0.07" NA
Jul 26 55° 81° 38° (1967) 94° (1988) 0.07" NA
Jul 27 55° 81° 43° (1958) 101° (1951) 0.07" NA
Jul 28 55° 81° 41° (1952) 105° (1951) 0.07" NA
Jul 29 55° 81° 43° (1958) 107° (1975) 0.06" NA
Jul 30 55° 81° 40° (1958) 101° (2007) 0.06" NA
Jul 31 55° 81° 44° (1995) 101° (1989) 0.06" NA
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