Porthill, Idaho
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 18° 33° -31° (1950) 54° (2003) 2.13" NA
February 22° 39° -29° (1950) 57° (1988) 1.69" NA
March 27° 49° -17° (1955) 77° (2004) 1.52" NA
April 34° 59° 15° (1975) 84° (1977) 1.43" NA
May 41° 68° 17° (1954) 95° (2001) 1.92" NA
June 47° 75° 28° (1998) 97° (1992) 1.85" NA
July 51° 82° 35° (1962) 103° (2006) 1.34" NA
August 49° 82° 32° (1962) 101° (1998) 1.21" NA
September 40° 71° 24° (1984) 97° (1998) 1.24" NA
October 32° 57° 11° (1991) 81° (2006) 1.41" NA
November 26° 42° -18° (1959) 67° (1978) 2.76" NA
December 19° 34° -37° (1968) 59° (1980) 2.41" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 17° 32° -19° (1979) 50° (1997) 0.07" NA
Jan 2 17° 32° -14° (1978) 46° (1963) 0.07" NA
Jan 3 17° 32° -16° (1952) 49° (1989) 0.07" NA
Jan 4 17° 32° -14° (1959) 52° (1984) 0.07" NA
Jan 5 17° 32° -10° (1950) 47° (1954) 0.07" NA
Jan 6 17° 32° -10° (1979) 48° (1954) 0.07" NA
Jan 7 17° 32° -10° (1979) 50° (1983) 0.07" NA
Jan 8 17° 33° -10° (1979) 49° (2002) 0.07" NA
Jan 9 17° 33° -17° (1949) 53° (1953) 0.07" NA
Jan 10 17° 33° -10° (1949) 49° (1953) 0.07" NA
Jan 11 17° 33° -17° (1963) 50° (1953) 0.07" NA
Jan 12 17° 33° -13° (1993) 53° (1953) 0.07" NA
Jan 13 18° 33° -8° (1972) 48° (1983) 0.07" NA
Jan 14 18° 33° -11° (1950) 47° (1953) 0.07" NA
Jan 15 18° 33° -27° (1950) 52° (1994) 0.07" NA
Jan 16 18° 33° -17° (1950) 50° (1961) 0.07" NA
Jan 17 18° 33° -19° (1950) 49° (1974) 0.07" NA
Jan 18 18° 33° -19° (1950) 49° (1989) 0.07" NA
Jan 19 18° 33° -25° (1962) 50° (1971) 0.07" NA
Jan 20 18° 33° -27° (1954) 50° (2005) 0.07" NA
Jan 21 18° 34° -20° (1954) 47° (1972) 0.07" NA
Jan 22 18° 34° -15° (1957) 45° (1950) 0.07" NA
Jan 23 18° 34° -17° (1969) 46° (1968) 0.07" NA
Jan 24 18° 34° -28° (1957) 52° (1953) 0.07" NA
Jan 25 18° 34° -27° (1957) 48° (1984) 0.07" NA
Jan 26 19° 34° -21° (1957) 45° (1984) 0.07" NA
Jan 27 19° 35° -21° (1980) 54° (2003) 0.07" NA
Jan 28 19° 35° -24° (1996) 50° (1962) 0.06" NA
Jan 29 19° 35° -23° (1950) 49° (1971) 0.06" NA
Jan 30 19° 35° -31° (1950) 53° (1989) 0.06" NA
Jan 31 19° 35° -20° (1950) 53° (1989) 0.06" NA
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