Rocky Boy, Montana
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 32° -51° (1969) 76° (1946) 0.48" NA
February 14° 36° -52° (1936) 76° (1992) 0.3" NA
March 23° 47° -44° (1951) 81° (2004) 0.62" NA
April 33° 59° -15° (1936) 101° (1941) 1.12" NA
May 42° 68° 9° (1954) 106° (1941) 2.37" NA
June 49° 76° 20° (1923) 106° (1936) 2.7" NA
July 55° 85° 34° (1944) 109° (1936) 1.52" NA
August 53° 85° 25° (1992) 111° (1961) 1.14" NA
September 44° 73° 12° (1926) 106° (1941) 1.35" NA
October 33° 59° -19° (1991) 92° (1942) 0.81" NA
November 21° 43° -33° (1985) 78° (1999) 0.51" NA
December 11° 33° -50° (1983) 75° (1930) 0.5" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 31° -48° (1928) 60° (1964) 0.01" NA
Jan 2 31° -41° (1969) 55° (1927) 0.02" NA
Jan 3 31° -43° (1950) 55° (1963) 0.01" NA
Jan 4 31° -40° (1950) 54° (2008) 0.02" NA
Jan 5 31° -34° (1982) 54° (1981) 0.02" NA
Jan 6 31° -40° (1982) 60° (1948) 0.01" NA
Jan 7 31° -36° (1937) 63° (2002) 0.02" NA
Jan 8 10° 31° -33° (1937) 59° (1958) 0.02" NA
Jan 9 10° 31° -34° (1949) 54° (1933) 0.01" NA
Jan 10 10° 31° -39° (1949) 55° (1941) 0.02" NA
Jan 11 10° 32° -41° (1997) 58° (1987) 0.01" NA
Jan 12 10° 32° -39° (1997) 60° (2002) 0.02" NA
Jan 13 10° 32° -35° (1997) 76° (1946) 0.02" NA
Jan 14 10° 32° -42° (1979) 59° (2006) 0.01" NA
Jan 15 10° 32° -44° (1950) 57° (1973) 0.02" NA
Jan 16 10° 32° -40° (1950) 56° (1944) 0.01" NA
Jan 17 11° 32° -40° (1950) 57° (1958) 0.02" NA
Jan 18 11° 32° -42° (1950) 53° (1944) 0.02" NA
Jan 19 11° 32° -35° (1950) 60° (1944) 0.01" NA
Jan 20 11° 32° -43° (1954) 60° (1987) 0.02" NA
Jan 21 11° 32° -40° (1949) 54° (1981) 0.01" NA
Jan 22 11° 32° -36° (1949) 61° (1981) 0.02" NA
Jan 23 11° 32° -36° (1952) 59° (1981) 0.01" NA
Jan 24 11° 32° -42° (1969) 65° (1968) 0.02" NA
Jan 25 11° 33° -51° (1969) 61° (2006) 0.01" NA
Jan 26 12° 33° -42° (1969) 55° (1934) 0.02" NA
Jan 27 12° 33° -34° (1972) 58° (1976) 0.01" NA
Jan 28 12° 33° -46° (1929) 63° (1931) 0.02" NA
Jan 29 12° 33° -42° (1950) 62° (1992) 0.01" NA
Jan 30 12° 33° -42° (1950) 58° (1962) 0.02" NA
Jan 31 12° 33° -43° (1929) 60° (1962) 0.01" NA
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