Winchester, Idaho
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 35° -26° (1979) 58° (1971) 1.94" 21"
February 22° 40° -28° (1989) 67° (1988) 1.69" 14.2"
March 26° 45° -10° (1976) 70° (2004) 2.46" 17.6"
April 31° 52° 7° (1968) 84° (1987) 2.76" 11.7"
May 37° 60° 19° (1973) 93° (2006) 3.18" 2.6"
June 42° 67° 23° (1994) 90° (1973) 2.18" 0"
July 46° 76° 28° (1994) 96° (2006) 1.45" 0"
August 46° 78° 25° (1980) 98° (1969) 1.24" 0"
September 39° 69° 17° (1985) 95° (1988) 1.44" 0.3"
October 33° 57° -10° (1971) 88° (1987) 1.87" 2.5"
November 26° 41° -21° (1985) 67° (1999) 2.51" 12.7"
December 20° 35° -40° (1968) 60° (1980) 1.99" 18.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 36° 63° 22° (1982) 85° (1992) 0.05" NA
Oct 2 35° 63° 20° (1971) 88° (1987) 0.05" NA
Oct 3 35° 62° 20° (1973) 83° (1970) 0.05" NA
Oct 4 35° 62° 20° (1977) 81° (2003) 0.05" NA
Oct 5 35° 62° 23° (1969) 78° (1971) 0.05" NA
Oct 6 35° 61° 17° (1974) 82° (1980) 0.05" NA
Oct 7 34° 61° 20° (1990) 81° (1980) 0.05" NA
Oct 8 34° 61° 20° (1973) 80° (1984) 0.05" NA
Oct 9 34° 60° 10° (1985) 82° (1996) 0.05" NA
Oct 10 34° 60° 18° (1987) 80° (1988) 0.06" NA
Oct 11 34° 59° 22° (1969) 81° (1991) 0.06" NA
Oct 12 33° 59° 20° (1969) 84° (1991) 0.06" NA
Oct 13 33° 58° 15° (1969) 79° (1988) 0.06" NA
Oct 14 33° 58° 15° (1969) 71° (1978) 0.06" NA
Oct 15 33° 58° 19° (1971) 73° (1991) 0.06" NA
Oct 16 33° 57° 19° (1999) 81° (1991) 0.06" NA
Oct 17 32° 57° 20° (1971) 76° (1974) 0.06" NA
Oct 18 32° 56° 15° (1976) 79° (1974) 0.06" NA
Oct 19 32° 56° 18° (1987) 78° (1974) 0.06" NA
Oct 20 32° 55° 16° (1984) 73° (1989) 0.06" NA
Oct 21 31° 55° 17° (1984) 77° (2003) 0.06" NA
Oct 22 31° 54° 16° (1984) 76° (2003) 0.06" NA
Oct 23 31° 54° 18° (1980) 72° (1965) 0.07" NA
Oct 24 31° 53° 10° (1975) 72° (1965) 0.07" NA
Oct 25 31° 52° 17° (1978) 73° (1986) 0.07" NA
Oct 26 30° 52° 20° (1970) 70° (1983) 0.07" NA
Oct 27 30° 51° 14° (1970) 70° (1987) 0.07" NA
Oct 28 30° 51° -3° (1971) 70° (1987) 0.07" NA
Oct 29 30° 50° -10° (1971) 70° (1983) 0.07" NA
Oct 30 30° 49° 11° (1991) 63° (1988) 0.07" NA
Oct 31 29° 49° 4° (2002) 70° (1988) 0.08" NA
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