Arco, Idaho
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 29° -35° (1985) 52° (1962) 0.82" NA
February 10° 36° -31° (1996) 59° (1991) 1.05" NA
March 21° 46° -19° (1960) 71° (1966) 0.86" NA
April 29° 58° 5° (1978) 86° (1987) 0.75" NA
May 37° 67° 11° (1972) 94° (2003) 1.32" NA
June 43° 77° 21° (1954) 97° (1988) 0.9" NA
July 48° 85° 29° (1986) 102° (1960) 0.83" NA
August 47° 83° 25° (1992) 100° (1961) 0.78" NA
September 38° 74° 15° (1985) 96° (1950) 0.7" NA
October 29° 61° 4° (2002) 83° (1988) 0.63" NA
November 18° 42° -21° (1977) 69° (1953) 0.8" NA
December 30° -45° (1983) 59° (1976) 0.81" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 11° 34° -12° (1967) 58° (1950) 0.03" NA
Dec 2 10° 34° -4° (1967) 52° (1950) 0.03" NA
Dec 3 10° 33° -3° (1983) 57° (1950) 0.03" NA
Dec 4 33° -22° (1992) 52° (2007) 0.03" NA
Dec 5 33° -31° (1972) 52° (2007) 0.03" NA
Dec 6 32° -20° (1972) 57° (2007) 0.03" NA
Dec 7 32° -10° (1948) 45° (1981) 0.03" NA
Dec 8 32° -19° (1951) 47° (1949) 0.03" NA
Dec 9 32° -36° (1972) 47° (1996) 0.03" NA
Dec 10 31° -37° (1972) 47° (1996) 0.03" NA
Dec 11 31° -37° (1972) 49° (1990) 0.03" NA
Dec 12 31° -18° (1961) 46° (1995) 0.03" NA
Dec 13 31° -24° (1972) 52° (1996) 0.03" NA
Dec 14 30° -18° (1972) 52° (1996) 0.03" NA
Dec 15 30° -11° (1971) 45° (1962) 0.03" NA
Dec 16 30° -15° (1971) 52° (1996) 0.03" NA
Dec 17 30° -22° (1964) 59° (1976) 0.03" NA
Dec 18 30° -18° (1964) 47° (1979) 0.03" NA
Dec 19 29° -24° (1992) 46° (1979) 0.03" NA
Dec 20 29° -16° (1998) 47° (1958) 0.02" NA
Dec 21 29° -33° (1983) 44° (1958) 0.02" NA
Dec 22 29° -40° (1990) 49° (1996) 0.02" NA
Dec 23 29° -45° (1983) 45° (1964) 0.02" NA
Dec 24 29° -30° (1990) 47° (1964) 0.02" NA
Dec 25 29° -22° (1990) 42° (1955) 0.02" NA
Dec 26 29° -14° (1952) 47° (1999) 0.02" NA
Dec 27 29° -17° (1965) 42° (1976) 0.02" NA
Dec 28 28° -18° (1983) 47° (1996) 0.02" NA
Dec 29 28° -24° (1988) 49° (1996) 0.02" NA
Dec 30 28° -34° (1990) 49° (1996) 0.02" NA
Dec 31 28° -19° (1982) 52° (1996) 0.02" NA
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