Boise, Idaho
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 24° 37° -17° (1950) 63° (1953) 1.39" 4.9"
February 29° 45° -15° (1989) 71° (1992) 1.14" 3.3"
March 34° 54° 6° (1971) 81° (1978) 1.41" 1.5"
April 39° 62° 19° (1968) 92° (1987) 1.27" 0.3"
May 47° 71° 22° (1982) 99° (2003) 1.27" 0.1"
June 54° 80° 31° (1995) 109° (1940) 0.74" 0"
July 60° 89° 35° (1986) 111° (1960) 0.39" 0"
August 60° 88° 34° (1992) 110° (1961) 0.3" 0"
September 51° 77° 23° (1970) 102° (1945) 0.76" 0"
October 41° 64° 11° (1971) 94° (1997) 0.76" 0.1"
November 32° 48° -3° (1985) 78° (1999) 1.38" 2.9"
December 24° 37° -25° (1990) 65° (1964) 1.38" 6.4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 22° 35° -13° (1942) 60° (1997) 0.04" NA
Jan 2 22° 35° -5° (1975) 51° (1946) 0.04" NA
Jan 3 22° 35° -5° (1991) 51° (2003) 0.04" NA
Jan 4 22° 35° -9° (1991) 57° (1956) 0.04" NA
Jan 5 23° 35° -12° (1991) 52° (1954) 0.05" NA
Jan 6 23° 35° -10° (1982) 55° (1948) 0.05" NA
Jan 7 23° 35° -10° (1979) 58° (1948) 0.05" NA
Jan 8 23° 35° -14° (1977) 55° (1953) 0.05" NA
Jan 9 23° 36° -13° (1977) 63° (1953) 0.05" NA
Jan 10 23° 36° -8° (1977) 57° (1995) 0.05" NA
Jan 11 23° 36° -6° (1949) 58° (1959) 0.05" NA
Jan 12 23° 36° -7° (1963) 59° (1953) 0.05" NA
Jan 13 23° 36° -1° (1949) 55° (1969) 0.05" NA
Jan 14 23° 36° -2° (1947) 56° (1978) 0.05" NA
Jan 15 23° 36° -10° (1947) 56° (1974) 0.05" NA
Jan 16 23° 36° 0° (1987) 57° (2000) 0.05" NA
Jan 17 23° 36° -7° (1984) 56° (1951) 0.05" NA
Jan 18 24° 37° -13° (1984) 57° (1998) 0.05" NA
Jan 19 24° 37° -10° (1984) 54° (1971) 0.05" NA
Jan 20 24° 37° -8° (1984) 57° (1953) 0.04" NA
Jan 21 24° 37° -12° (1962) 53° (1943) 0.04" NA
Jan 22 24° 37° -11° (1962) 53° (1954) 0.04" NA
Jan 23 24° 38° -12° (1962) 57° (1953) 0.04" NA
Jan 24 24° 38° -6° (1949) 57° (1959) 0.04" NA
Jan 25 25° 38° -5° (1949) 59° (1953) 0.04" NA
Jan 26 25° 38° -8° (1979) 55° (1971) 0.04" NA
Jan 27 25° 39° -9° (1957) 52° (2003) 0.04" NA
Jan 28 25° 39° -6° (1957) 56° (1998) 0.04" NA
Jan 29 25° 39° -9° (1957) 56° (1967) 0.04" NA
Jan 30 26° 40° -13° (1979) 56° (1992) 0.04" NA
Jan 31 26° 40° -17° (1950) 61° (1992) 0.04" NA
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