ELLENSBURG, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 33.7 41.3 52.3 60.4 68.3 75.0 82.7 82.9 74.5 61.5 44.1 33.7 59.2
Highest Mean Max. Temperature (F) 44.9 50.3 59.0 65.8 73.5 82.1 92.4 88.8 82.7 69.0 50.2 41.0 92.4
Year Highest Occurred 1994 1991 1992 1977 1992 1992 1985 1981 1998 1988 1990 1991 1985
Lowest Mean Max. Temperature (F) 20.9 31.8 46.2 55.6 62.4 69.8 74.4 76.5 67.8 57.3 30.9 21.3 20.9
Year Lowest Occurred 1979 1989 1971 1975 1996 1991 1993 1976 1985 1995 1985 1985 1979
Mean Temperature (F) 26.2 32.3 40.5 47.4 55.1 61.6 67.8 67.6 58.9 47.4 35.6 26.8 47.3
Highest Mean Temperature (F) 36.1 38.6 45.4 51.4 59.4 67.4 73.6 71.4 65.3 52.7 41.1 34.2 73.6
Year Highest Occurred 1994 1991 1992 1977 1993 1992 1998 1977 1998 1988 1999 1999 1998
Lowest Mean Temperature (F) 12.3 22.2 35.6 43.5 50.6 57.4 62.5 63.6 54.3 44.1 21.4 14.8 12.3
Year Lowest Occurred 1979 1989 1971 1975 1984 1976 1993 1995 1972 1984 1985 1983 1979
Mean Min. Temperature (F) 18.6 23.2 28.7 34.3 41.9 48.2 52.8 52.2 43.3 33.3 27.0 19.8 35.3
Highest Mean Min. Temperature (F) 31.1 30.7 32.9 39.1 45.5 52.6 58.6 55.4 47.8 37.5 33.7 27.4 58.6
Year Highest Occurred 1981 1992 1983 1994 1993 1992 1998 1977 1998 1979 1999 1999 1998
Lowest Mean Min. Temperature (F) 3.7 12.6 25.0 28.8 38.8 44.3 47.7 49.3 38.8 29.8 11.9 4.8 3.7
Year Lowest Occurred 1979 1989 1971 1982 1984 1976 1972 1995 1972 1983 1985 1983 1979
Mean Precipitation (in.) 1.23 0.92 0.77 0.56 0.56 0.63 0.37 0.36 0.46 0.57 1.20 1.47 9.10
Highest Precipitation (in.) 2.94 2.09 3.40 1.21 1.60 1.69 1.11 2.11 1.81 1.94 2.60 4.22 4.22
Year Highest Occurred 1995 1996 1971 1994 1998 1984 1991 1990 1986 1997 1973 1996 1996
Lowest Precipitation (in.) 0.12 0.00 0.07 0.03 0.00 0.02 0.00 0.00 0.00 0.00 0.01 0.07 0.00
Year Lowest Occurred 1985 1988 1981 1981 1992 1989 2000 2000 1999 1972 1976 1976 1988
Heating Degree Days (F) 1204. 917. 759. 529. 311. 142. 48. 44. 215. 546. 884. 1186. 6785.
Cooling Degree Days (F) 0. 0. 0. 0. 4. 40. 133. 122. 31. 0. 0. 0. 330.

Western Regional Climate Center, wrcc@dri.edu