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
Dec 1 22° 36° -8° (1985) 51° (1972) 0.09" NA
Dec 2 22° 36° 7° (2006) 49° (1975) 0.09" NA
Dec 3 22° 36° -3° (1984) 52° (1958) 0.09" NA
Dec 4 22° 36° -5° (1984) 50° (1975) 0.09" NA
Dec 5 21° 35° -4° (1984) 50° (2007) 0.09" NA
Dec 6 21° 35° -5° (1956) 48° (1979) 0.09" NA
Dec 7 21° 35° -3° (1956) 48° (1970) 0.08" NA
Dec 8 21° 35° -9° (1972) 51° (1979) 0.08" NA
Dec 9 20° 35° -7° (1972) 54° (1975) 0.08" NA
Dec 10 20° 34° -7° (1961) 52° (1956) 0.08" NA
Dec 11 20° 34° -8° (1961) 50° (2004) 0.08" NA
Dec 12 20° 34° -3° (1961) 49° (2004) 0.08" NA
Dec 13 20° 34° 1° (1970) 52° (1995) 0.08" NA
Dec 14 19° 34° 0° (1955) 53° (2002) 0.08" NA
Dec 15 19° 34° -9° (1955) 53° (2002) 0.08" NA
Dec 16 19° 34° -8° (1964) 49° (1982) 0.08" NA
Dec 17 19° 33° -20° (1964) 49° (1999) 0.08" NA
Dec 18 19° 33° -11° (1964) 50° (1998) 0.08" NA
Dec 19 18° 33° -7° (1983) 48° (1972) 0.07" NA
Dec 20 18° 33° -15° (1983) 49° (1995) 0.07" NA
Dec 21 18° 33° -17° (1983) 48° (1962) 0.07" NA
Dec 22 18° 33° -20° (1983) 52° (1955) 0.07" NA
Dec 23 18° 33° -18° (1983) 50° (1955) 0.07" NA
Dec 24 18° 33° -18° (1983) 49° (1950) 0.07" NA
Dec 25 18° 33° -13° (1948) 49° (1950) 0.07" NA
Dec 26 18° 33° -19° (1951) 55° (1980) 0.07" NA
Dec 27 18° 33° -14° (1948) 59° (1980) 0.07" NA
Dec 28 18° 32° -8° (1978) 51° (1980) 0.07" NA
Dec 29 17° 32° -20° (1968) 51° (1949) 0.07" NA
Dec 30 17° 32° -37° (1968) 50° (1949) 0.07" NA
Dec 31 17° 32° -34° (1968) 51° (1963) 0.07" NA
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