Niwot, Colorado
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 42° -34° (1963) 75° (1982) 0.42" NA
February 17° 47° -36° (1951) 77° (1986) 0.37" NA
March 24° 54° -18° (1960) 85° (1997) 1.21" NA
April 32° 62° -7° (1975) 88° (1989) 2.01" NA
May 42° 72° 18° (1989) 100° (2003) 2.41" NA
June 51° 83° 29° (1998) 106° (1994) 1.64" NA
July 55° 89° 40° (1994) 106° (1973) 1.11" NA
August 53° 87° 37° (1992) 104° (2002) 1.39" NA
September 44° 78° 18° (1985) 100° (1995) 1.38" NA
October 32° 67° 0° (1969) 90° (1996) 0.81" NA
November 22° 51° -22° (1950) 80° (1999) 0.83" NA
December 14° 44° -31° (1990) 73° (1998) 0.57" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 37° 67° 18° (1989) 92° (1992) 0.08" NA
May 2 37° 67° 24° (1954) 89° (1992) 0.08" NA
May 3 38° 67° 24° (1988) 86° (1981) 0.08" NA
May 4 38° 68° 27° (2001) 88° (1949) 0.08" NA
May 5 38° 68° 31° (1950) 94° (2000) 0.08" NA
May 6 39° 68° 24° (1999) 94° (2000) 0.08" NA
May 7 39° 69° 24° (1978) 89° (2004) 0.08" NA
May 8 39° 69° 24° (1978) 88° (1963) 0.08" NA
May 9 40° 69° 24° (2002) 86° (1956) 0.08" NA
May 10 40° 70° 27° (2002) 90° (1962) 0.08" NA
May 11 41° 70° 29° (1953) 90° (1962) 0.08" NA
May 12 41° 70° 25° (1999) 91° (1962) 0.08" NA
May 13 41° 71° 27° (1953) 92° (1962) 0.08" NA
May 14 42° 71° 28° (1953) 91° (1988) 0.08" NA
May 15 42° 71° 30° (1970) 92° (1996) 0.08" NA
May 16 42° 72° 32° (1957) 92° (1996) 0.08" NA
May 17 43° 72° 29° (1999) 96° (1996) 0.08" NA
May 18 43° 72° 31° (1957) 90° (1964) 0.08" NA
May 19 43° 73° 33° (1971) 94° (1996) 0.08" NA
May 20 44° 73° 33° (1960) 89° (1991) 0.08" NA
May 21 44° 74° 25° (2001) 94° (1954) 0.08" NA
May 22 44° 74° 29° (2001) 91° (1964) 0.08" NA
May 23 44° 74° 32° (2002) 92° (1964) 0.08" NA
May 24 45° 75° 28° (2002) 94° (2000) 0.08" NA
May 25 45° 75° 33° (2001) 91° (1967) 0.07" NA
May 26 45° 76° 32° (1950) 90° (1969) 0.07" NA
May 27 46° 76° 32° (1950) 92° (1969) 0.07" NA
May 28 46° 76° 34° (1950) 94° (1969) 0.07" NA
May 29 46° 77° 34° (1950) 94° (2000) 0.07" NA
May 30 46° 77° 32° (1964) 100° (2003) 0.07" NA
May 31 47° 78° 36° (1983) 96° (1994) 0.07" NA
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