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
Jun 1 47° 70° 28° (1951) 87° (1972) 0.08" NA
Jun 2 47° 71° 31° (2000) 94° (1968) 0.09" NA
Jun 3 48° 71° 33° (1951) 92° (1976) 0.09" NA
Jun 4 48° 71° 31° (1998) 96° (1961) 0.09" NA
Jun 5 48° 72° 33° (1958) 102° (1988) 0.09" NA
Jun 6 48° 72° 36° (1960) 101° (1988) 0.09" NA
Jun 7 49° 72° 34° (1992) 102° (1988) 0.1" NA
Jun 8 49° 72° 33° (1950) 95° (1988) 0.1" NA
Jun 9 49° 72° 33° (1950) 99° (1956) 0.1" NA
Jun 10 49° 73° 36° (1958) 101° (1956) 0.1" NA
Jun 11 50° 73° 32° (1958) 93° (1983) 0.1" NA
Jun 12 50° 73° 29° (1969) 94° (1961) 0.1" NA
Jun 13 50° 73° 32° (1969) 100° (1979) 0.1" NA
Jun 14 50° 74° 39° (1989) 98° (1959) 0.1" NA
Jun 15 51° 74° 41° (1994) 95° (1959) 0.1" NA
Jun 16 51° 74° 39° (1949) 95° (1995) 0.1" NA
Jun 17 51° 74° 37° (2000) 99° (1961) 0.11" NA
Jun 18 51° 75° 31° (2004) 93° (1995) 0.11" NA
Jun 19 51° 75° 36° (2004) 93° (1989) 0.11" NA
Jun 20 52° 75° 33° (1969) 93° (1966) 0.11" NA
Jun 21 52° 75° 39° (1958) 103° (1988) 0.11" NA
Jun 22 52° 75° 41° (1996) 91° (1980) 0.11" NA
Jun 23 52° 76° 37° (1967) 98° (1988) 0.11" NA
Jun 24 52° 76° 34° (2004) 97° (1983) 0.1" NA
Jun 25 53° 76° 40° (1956) 96° (1961) 0.1" NA
Jun 26 53° 76° 37° (1952) 97° (1988) 0.1" NA
Jun 27 53° 76° 38° (1993) 100° (1970) 0.1" NA
Jun 28 53° 77° 39° (2007) 100° (1966) 0.1" NA
Jun 29 53° 77° 37° (1959) 98° (1966) 0.1" NA
Jun 30 53° 77° 40° (1960) 95° (2006) 0.1" NA
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