YREKA, CALIFORNIA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 45.1 51.3 56.9 63.5 72.6 81.5 90.5 90.2 82.3 69.9 52.5 44.5 66.7
Highest Mean Max. Temperature (F) 53.7 60.6 63.7 73.5 84.1 87.3 97.3 95.3 89.7 80.1 61.9 49.3 97.3
Year Highest Occurred 1986 1995 1994 1987 1992 1986 1994 1986 1991 1988 1995 1995 1994
Lowest Mean Max. Temperature (F) 37.3 46.0 50.5 54.3 61.2 73.9 83.3 79.3 71.9 60.9 44.3 38.1 37.3
Year Lowest Occurred 1977 1999 1975 1975 1998 1980 1983 1976 1978 1984 1994 1972 1977
Mean Temperature (F) 34.1 38.7 43.1 48.5 56.0 63.8 70.8 70.2 63.0 52.5 40.4 34.0 51.3
Highest Mean Temperature (F) 41.1 44.5 47.9 55.2 63.3 69.4 75.2 74.4 67.9 58.9 47.4 40.5 75.2
Year Highest Occurred 1986 1995 1986 1990 1992 1986 1996 1986 1991 1987 1995 1995 1996
Lowest Mean Temperature (F) 25.8 32.2 38.6 41.1 49.2 58.8 63.8 63.7 56.7 47.5 34.0 27.2 25.8
Year Lowest Occurred 1977 1989 1977 1975 1977 1980 1993 1976 1978 1984 1994 1972 1977
Mean Min. Temperature (F) 23.1 26.0 29.2 33.5 39.4 46.0 51.1 50.1 43.6 35.1 28.3 23.5 35.7
Highest Mean Min. Temperature (F) 29.7 31.7 33.2 38.9 43.2 51.7 55.5 54.0 46.5 40.3 33.7 31.6 55.5
Year Highest Occurred 1995 1996 1993 1992 1997 1977 1996 1977 1998 1979 1999 1995 1996
Lowest Mean Min. Temperature (F) 14.3 17.5 24.3 27.9 36.0 40.6 42.6 45.9 40.7 31.8 21.0 16.2 14.3
Year Lowest Occurred 1977 1989 1985 1975 1977 1993 1993 1993 1988 1994 1993 1972 1977
Mean Precipitation (in.) 3.19 2.27 2.04 1.20 1.15 0.95 0.49 0.54 0.75 1.11 2.80 3.17 19.66
Highest Precipitation (in.) 7.43 5.85 5.79 3.42 4.14 4.35 2.08 3.23 3.19 3.17 8.20 9.67 9.67
Year Highest Occurred 1996 1999 1975 2000 1998 1982 1995 1976 1978 1979 1984 1996 1996
Lowest Precipitation (in.) 0.20 0.02 0.15 0.07 0.03 0.00 0.00 0.00 0.00 0.00 0.36 0.27 0.00
Year Lowest Occurred 1984 1988 1994 1985 1982 1994 1989 1998 1999 1978 2000 1976 1994
Heating Degree Days (F) 959. 739. 681. 496. 293. 114. 25. 22. 129. 393. 737. 962. 5550.
Cooling Degree Days (F) 0. 0. 0. 2. 14. 76. 204. 181. 68. 5. 0. 0. 550.

Western Regional Climate Center, wrcc@dri.edu