FLAGSTAFF 4 SW, ARIZONA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 42.6 44.7 49.0 56.4 65.0 75.7 80.3 77.6 72.1 62.2 50.4 43.4 60.0
Highest Mean Max. Temperature (F) 49.5 51.2 59.7 66.5 73.6 80.7 83.8 81.6 77.3 68.5 60.0 51.3 83.8
Year Highest Occurred 1986 1996 1972 1989 1984 1996 2000 1994 1979 1988 1995 1980 2000
Lowest Mean Max. Temperature (F) 34.7 40.5 39.0 47.7 57.8 71.3 75.5 73.9 64.8 54.5 43.1 35.7 34.7
Year Lowest Occurred 1979 1998 1973 1975 1977 1991 1986 1999 1986 1984 2000 1971 1979
Mean Temperature (F) 25.5 28.5 33.5 39.3 46.2 54.6 61.8 60.3 53.9 43.5 32.8 26.5 42.2
Highest Mean Temperature (F) 32.8 36.0 39.2 45.4 51.4 59.9 66.2 64.7 58.3 48.1 40.1 32.9 66.2
Year Highest Occurred 1986 1996 1972 1989 1997 1994 1996 1994 1997 1988 1995 1980 1996
Lowest Mean Temperature (F) 19.4 21.9 27.2 32.5 40.8 51.1 58.3 56.9 49.6 38.1 27.9 20.2 19.4
Year Lowest Occurred 1979 1985 1987 1975 1977 1991 1987 1976 1986 1984 2000 1992 1979
Mean Min. Temperature (F) 8.4 12.2 17.9 22.2 27.3 33.5 43.3 42.9 35.6 24.8 15.1 9.5 24.4
Highest Mean Min. Temperature (F) 16.4 20.8 23.3 28.0 32.3 39.2 49.1 47.8 42.7 30.3 20.1 17.5 49.1
Year Highest Occurred 1998 1996 1995 1990 1992 1994 1996 1994 1997 1972 1995 1996 1996
Lowest Mean Min. Temperature (F) 0.6 2.1 10.8 17.4 23.1 30.0 39.4 37.2 30.6 20.6 10.3 1.6 0.6
Year Lowest Occurred 1989 1985 1987 1975 1975 1975 1987 1976 1988 1999 1984 1976 1989
Mean Precipitation (in.) 2.22 2.40 2.85 1.35 0.68 0.47 2.23 3.10 2.47 1.94 1.97 1.59 23.27
Highest Precipitation (in.) 8.58 7.82 7.57 4.16 3.81 2.24 6.09 6.03 6.92 8.36 6.57 5.35 8.58
Year Highest Occurred 1993 1980 1991 1999 1992 1972 1984 1992 1983 1972 1978 1992 1993
Lowest Precipitation (in.) 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.66 0.02 0.00 0.00 0.01 0.00
Year Lowest Occurred 1972 1972 1972 1991 2000 1998 1993 1976 1992 1995 1999 1999 1972
Heating Degree Days (F) 1225. 1022. 978. 770. 584. 314. 116. 164. 336. 666. 968. 1197. 8340.
Cooling Degree Days (F) 0. 0. 0. 0. 0. 2. 18. 16. 1. 0. 0. 0. 37.

Western Regional Climate Center, wrcc@dri.edu