Newcastle, Wyoming
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 31° -31° (1997) 58° (1986) 0.49" NA
February 35° -42° (1982) 62° (1982) 0.65" NA
March 15° 41° -31° (1996) 68° (1989) 1" NA
April 23° 50° -16° (1997) 78° (1989) 2.19" NA
May 32° 60° 6° (1997) 82° (1992) 3.55" NA
June 40° 70° 21° (1985) 92° (1988) 3.31" NA
July 44° 78° 26° (1987) 92° (1989) 2.73" NA
August 42° 76° 20° (1988) 91° (1995) 2.3" NA
September 32° 66° 5° (1985) 87° (2000) 1.6" NA
October 23° 54° -16° (1991) 82° (1992) 1.66" NA
November 13° 39° -29° (1986) 72° (1999) 0.82" NA
December 33° -45° (1990) 63° (1990) 0.57" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 35° -26° (1985) 57° (1999) 0.02" NA
Dec 2 34° -33° (1985) 60° (1988) 0.02" NA
Dec 3 34° -8° (1984) 55° (1989) 0.02" NA
Dec 4 34° -14° (1992) 63° (1987) 0.02" NA
Dec 5 34° -15° (1992) 54° (1987) 0.02" NA
Dec 6 34° -16° (1983) 52° (1984) 0.02" NA
Dec 7 34° -5° (1983) 52° (1984) 0.02" NA
Dec 8 34° -16° (1995) 54° (1990) 0.02" NA
Dec 9 33° -16° (1995) 59° (1990) 0.02" NA
Dec 10 33° -16° (1985) 63° (1990) 0.02" NA
Dec 11 33° -13° (1985) 57° (1993) 0.02" NA
Dec 12 33° -12° (1985) 50° (1982) 0.02" NA
Dec 13 33° -23° (1985) 49° (1988) 0.02" NA
Dec 14 33° -19° (1989) 62° (1997) 0.02" NA
Dec 15 33° -35° (1989) 54° (1998) 0.02" NA
Dec 16 33° -10° (2000) 48° (2002) 0.02" NA
Dec 17 32° -19° (1983) 49° (1997) 0.02" NA
Dec 18 32° -35° (1983) 54° (1988) 0.02" NA
Dec 19 32° -23° (1983) 44° (1981) 0.02" NA
Dec 20 32° -35° (1983) 47° (1994) 0.02" NA
Dec 21 32° -42° (1983) 56° (1994) 0.02" NA
Dec 22 32° -45° (1990) 50° (1986) 0.02" NA
Dec 23 32° -44° (1983) 55° (1994) 0.02" NA
Dec 24 32° -43° (1983) 49° (1994) 0.02" NA
Dec 25 32° -30° (1983) 53° (1994) 0.02" NA
Dec 26 32° -26° (1996) 51° (1999) 0.02" NA
Dec 27 32° -14° (1983) 47° (1989) 0.01" NA
Dec 28 32° -20° (1981) 48° (1994) 0.01" NA
Dec 29 31° -34° (1990) 50° (1999) 0.01" NA
Dec 30 31° -34° (1990) 47° (1999) 0.01" NA
Dec 31 31° -16° (1987) 49° (1996) 0.01" NA
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