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
Mar 1 30° -30° (1951) 64° (1992) 0.01" NA
Mar 2 10° 30° -28° (1972) 58° (1992) 0.01" NA
Mar 3 10° 31° -23° (1962) 55° (2000) 0.01" NA
Mar 4 10° 31° -27° (1960) 60° (1992) 0.01" NA
Mar 5 11° 31° -27° (1976) 61° (2000) 0.01" NA
Mar 6 11° 32° -23° (1951) 66° (2000) 0.01" NA
Mar 7 11° 32° -20° (1951) 60° (1977) 0.02" NA
Mar 8 12° 33° -27° (2003) 56° (1977) 0.02" NA
Mar 9 12° 33° -31° (2002) 56° (1977) 0.02" NA
Mar 10 13° 34° -29° (2002) 57° (1990) 0.02" NA
Mar 11 13° 34° -23° (1951) 63° (1990) 0.02" NA
Mar 12 13° 34° -30° (1951) 56° (1964) 0.02" NA
Mar 13 14° 35° -15° (1967) 71° (2007) 0.02" NA
Mar 14 14° 35° -17° (1967) 59° (1966) 0.02" NA
Mar 15 15° 36° -20° (1967) 55° (1966) 0.02" NA
Mar 16 15° 36° -19° (1997) 68° (1981) 0.02" NA
Mar 17 15° 37° -14° (1965) 63° (1985) 0.02" NA
Mar 18 16° 37° -13° (1965) 60° (1985) 0.02" NA
Mar 19 16° 38° -8° (1965) 57° (1972) 0.02" NA
Mar 20 17° 38° -14° (1965) 64° (1991) 0.02" NA
Mar 21 17° 39° -12° (1965) 69° (2007) 0.02" NA
Mar 22 17° 39° -17° (1965) 63° (1963) 0.02" NA
Mar 23 18° 40° -18° (1965) 72° (1968) 0.02" NA
Mar 24 18° 40° -16° (1965) 74° (1993) 0.02" NA
Mar 25 19° 41° -18° (1964) 74° (2007) 0.02" NA
Mar 26 19° 42° -9° (1964) 75° (2007) 0.02" NA
Mar 27 20° 42° -9° (1970) 64° (1963) 0.02" NA
Mar 28 20° 43° -8° (1964) 67° (1963) 0.02" NA
Mar 29 21° 43° -22° (1964) 70° (1978) 0.02" NA
Mar 30 21° 44° -10° (1969) 77° (1978) 0.02" NA
Mar 31 21° 45° -2° (1996) 67° (1976) 0.02" NA
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