SKAMANIA FISH HATCHERY, WASHINGTON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(457696)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1965 ----- z 33.48 c 31.97 36.93 38.55 42.20 46.65 48.29 38.50 39.90 38.20 29.26 38.54
1966 32.00 31.96 31.68 36.07 36.32 41.60 45.48 43.45 42.70 34.87 35.30 33.87 37.11
1967 34.94 30.39 31.23 31.67 37.23 45.27 43.61 45.26 41.20 37.77 33.43 29.48 36.79
1968 28.65 37.17 35.94 33.37 40.97 44.77 47.23 47.23 44.67 37.45 36.17 29.26 38.57
1969 18.74 l 31.25 31.26 36.33 40.29 50.73 45.71 43.19 44.50 38.42 36.43 35.29 39.40
1970 31.52 36.04 32.16 34.17 37.87 46.37 46.77 44.03 41.63 38.06 36.70 30.94 38.02
1971 30.97 33.68 30.45 33.50 39.71 43.23 47.23 47.77 41.03 35.00 34.17 31.29 37.34
1972 28.65 32.55 36.68 34.10 40.35 44.57 48.00 46.29 40.87 35.48 37.20 27.23 37.66
1973 28.23 32.39 33.94 35.17 40.71 45.20 46.32 43.06 43.67 37.65 34.20 35.26 37.98
1974 27.61 33.04 33.29 36.80 39.45 42.90 46.13 47.13 43.37 34.74 35.70 35.19 37.95
1975 30.97 30.11 31.74 30.67 38.32 43.50 48.87 44.35 42.87 41.45 33.17 33.19 37.43
1976 31.90 30.28 29.65 34.17 37.77 40.57 44.16 46.52 43.23 35.00 35.70 28.61 36.46
1977 23.74 31.68 31.10 32.60 37.35 43.37 44.32 48.61 42.80 36.77 31.77 33.42 36.46
1978 31.23 33.07 32.87 34.87 37.55 44.93 46.55 46.58 44.33 37.39 29.33 28.55 37.27
1979 21.39 30.79 35.35 38.70 40.42 45.18 h 47.10 46.48 44.37 40.45 31.10 32.68 37.17
1980 23.23 a 30.14 32.16 34.93 a 38.71 42.97 45.77 45.03 43.47 37.61 36.20 32.74 36.91
1981 35.74 31.11 34.00 36.73 41.00 a 42.67 45.61 45.26 43.03 38.23 37.00 34.71 38.76
1982 30.48 31.18 32.48 32.47 39.23 47.97 47.48 46.90 44.07 39.39 33.40 32.90 38.16
1983 35.23 37.36 38.42 34.30 41.19 45.57 48.00 47.61 41.40 36.68 39.60 27.23 39.38
1984 32.23 34.41 37.32 36.93 40.16 43.37 45.10 45.42 44.40 39.19 36.73 30.06 38.78
1985 26.71 26.75 29.87 37.50 39.19 42.97 46.90 43.48 41.87 37.48 27.87 23.32 35.33
1986 33.10 33.04 36.61 34.23 40.48 46.13 46.03 47.52 43.77 38.48 36.77 30.03 38.85
1987 29.48 34.61 35.65 35.50 41.23 42.93 46.16 43.32 40.63 37.23 39.40 29.39 37.96
1988 30.03 31.31 32.97 38.30 40.06 42.30 43.26 41.23 37.27 40.10 38.63 33.00 37.37
1989 33.97 24.14 34.52 38.83 39.97 43.23 43.68 45.65 37.43 33.42 32.50 26.35 36.14
1990 29.94 27.39 31.45 34.73 36.97 43.07 43.42 43.10 36.70 27.42 31.17 26.35 34.31
1991 28.45 37.14 32.03 37.17 40.58 42.50 46.45 46.00 39.30 32.81 33.03 30.90 37.20
1992 31.19 34.31 35.58 40.07 40.58 47.73 50.87 47.03 41.47 40.29 35.20 29.00 39.44
1993 25.39 26.86 33.71 38.53 43.52 45.90 49.13 49.16 41.70 40.26 26.40 31.32 37.66
1994 33.03 27.86 34.00 37.29 m 41.00 43.63 48.23 46.71 43.50 35.65 29.37 30.71 37.61
1995 32.52 32.07 31.71 34.57 40.32 44.87 49.94 ----- z 47.87 39.32 41.87 34.13 39.02
1996 33.94 30.86 34.74 38.97 41.61 42.93 48.58 45.42 40.17 37.10 31.67 28.03 37.83
1997 25.06 27.96 29.55 30.43 39.10 42.43 43.26 43.23 40.67 33.26 37.67 32.23 35.40
1998 33.48 36.41 a 36.42 37.13 44.19 47.77 52.90 48.71 44.40 38.77 38.77 30.77 40.81
1999 32.42 34.89 35.10 35.20 40.10 46.87 46.81 49.94 41.83 39.13 38.57 34.32 39.60
2000 31.45 33.21 32.26 36.60 42.94 46.10 48.29 46.65 46.23 40.97 30.53 31.61 38.90
2001 29.97 31.39 36.77 37.37 41.61 46.00 51.16 51.27 a 45.97 39.74 39.00 33.29 40.30
2002 33.39 32.29 33.35 37.57 41.13 48.23 52.39 48.90 43.93 41.32 38.30 36.81 40.63
2003 38.06 35.11 38.61 39.53 43.74 49.10 50.06 49.68 47.33 45.13 34.43 34.58 42.11
2004 30.10 35.62 36.55 38.57 44.97 48.73 52.52 54.58 46.70 43.06 34.80 35.10 41.77
2005 33.16 31.43 36.74 39.67 47.68 48.33 51.90 49.84 41.23 43.71 35.80 31.03 40.88
2006 37.55 30.93 35.74 37.50 ----- z 49.43 50.61 47.13 44.40 36.45 36.37 30.35 39.68
2007 27.55 33.25 35.19 36.97 40.00 46.30 51.52 47.45 42.13 37.32 30.90 30.03 38.22
2008 27.74 29.97 30.10 32.37 41.13 44.20 46.35 48.13 41.17 34.65 35.43 23.23 36.20
2009 26.94 26.14 29.94 31.50 37.23 45.33 47.16 ----- z 43.30 ----- z 30.80 ----- z 35.37
2010 36.77 34.57 35.19 37.73 40.58 47.33 50.65 51.55 50.03 43.58 37.30 36.13 41.79
2011 34.35 31.64 36.52 37.10 42.13 47.00 b 48.55 50.42 48.80 44.97 a 35.21 a 31.13 40.65
2012 32.40 a 36.34 33.61 38.63 41.39 46.17 51.80 a 51.97 46.38 a 43.81 42.00 36.10 a 41.72
2013 31.16 35.61 36.68 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 34.48
Period of Record Statistics
MEAN 30.81 32.15 33.77 35.89 40.35 45.09 47.60 46.88 42.96 38.23 35.03 31.29 38.34
S.D. 3.66 3.04 2.47 2.49 2.20 2.36 2.66 2.75 2.82 3.42 3.48 3.20 1.90
SKEW -0.39 -0.41 0.03 -0.41 0.79 0.36 0.30 0.38 0.10 -0.29 -0.34 -0.47 0.27
MAX 38.06 37.36 38.61 40.07 47.68 50.73 52.90 54.58 50.03 45.13 42.00 36.81 42.11
MIN 21.39 24.14 29.55 30.43 36.32 40.57 43.26 41.23 36.70 27.42 26.40 23.23 34.31
NO YRS 47 49 49 47 47 47 48 46 48 47 48 47 41