ENTIAT FISH HATCHERY, WASHINGTON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 33.9 41.6 53.2 63.1 71.1 77.9 85.9 86.3 78.0 63.1 44.9 34.8 61.2
Highest Mean Max. Temperature (F) 42.3 49.2 60.8 69.0 77.1 85.3 95.3 92.5 85.3 69.0 51.7 40.5 95.3
Year Highest Occurred 1990 1991 1992 1977 1993 1992 1985 1971 1998 1987 1990 1979 1985
Lowest Mean Max. Temperature (F) 23.7 34.1 46.3 58.2 65.6 72.9 77.3 79.8 71.1 58.9 33.2 26.5 23.7
Year Lowest Occurred 1979 1989 1971 1972 1996 1981 1993 1995 1985 1985 1985 1983 1979
Mean Temperature (F) 26.1 32.5 41.5 49.0 56.2 62.4 68.8 68.8 61.2 49.2 36.3 27.4 48.3
Highest Mean Temperature (F) 34.4 39.2 47.7 53.3 61.6 69.2 74.7 73.0 67.4 53.7 41.8 34.6 74.7
Year Highest Occurred 1990 1991 1992 1990 1993 1992 1998 1986 1998 1988 1999 1999 1998
Lowest Mean Temperature (F) 13.0 24.2 35.7 44.5 52.2 58.3 63.2 63.8 56.4 45.7 24.1 17.0 13.0
Year Lowest Occurred 1979 1989 1971 1972 1974 1981 1993 1995 1985 1984 1985 1983 1979
Mean Min. Temperature (F) 18.2 23.3 29.8 34.9 41.2 46.8 51.7 51.3 44.4 35.3 27.7 19.9 35.4
Highest Mean Min. Temperature (F) 26.8 31.8 34.6 39.8 46.0 53.1 58.0 55.5 49.4 39.0 34.7 28.7 58.0
Year Highest Occurred 1981 1992 1992 1994 1993 1992 1998 1997 1998 1988 1999 1999 1998
Lowest Mean Min. Temperature (F) 2.2 14.0 25.0 29.8 37.8 42.5 48.6 47.7 40.9 31.9 15.0 7.5 2.2
Year Lowest Occurred 1979 1985 1971 1982 1974 1976 1986 1995 1984 1972 1985 1983 1979
Mean Precipitation (in.) 1.97 1.44 1.12 0.73 0.70 0.83 0.22 0.39 0.33 0.91 2.06 2.29 12.99
Highest Precipitation (in.) 4.07 3.97 2.74 1.48 2.42 2.35 1.59 1.33 0.72 2.34 5.71 5.38 5.71
Year Highest Occurred 1995 1998 1995 1994 1998 1991 1992 1976 1991 1997 1983 1996 1983
Lowest Precipitation (in.) 0.26 0.21 0.37 0.01 0.00 0.08 0.00 0.00 0.00 0.05 0.11 0.29 0.00
Year Lowest Occurred 1985 1988 1993 1999 1992 1989 1984 2000 1990 1987 1993 1989 1992
Heating Degree Days (F) 1208. 912. 729. 479. 281. 130. 41. 35. 168. 490. 861. 1168. 6502.
Cooling Degree Days (F) 0. 0. 0. 0. 7. 51. 158. 153. 54. 0. 0. 0. 423.

Western Regional Climate Center, wrcc@dri.edu