GRAYS RIVER HATCHERY, WASHINGTON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(453333)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1962 ----- z ----- z 36.13 p 40.77 41.77 44.97 49.06 51.74 49.90 44.90 41.53 37.16 44.65
1963 29.39 40.61 36.16 40.33 42.65 48.07 49.84 52.10 50.80 46.45 40.43 37.71 42.88
1964 36.26 32.97 35.90 36.63 40.32 46.57 51.29 49.16 46.80 41.71 35.27 32.29 40.43
1965 33.35 35.93 a 32.42 39.10 41.19 45.37 51.07 a 51.90 44.83 44.19 41.73 34.39 41.29
1966 34.26 33.29 34.90 39.43 40.06 45.47 50.00 47.29 47.43 39.97 a 38.64 b 38.97 40.81
1967 37.58 33.68 34.00 33.97 41.48 48.87 48.23 48.81 46.59 a 42.58 36.70 32.26 40.39
1968 32.71 35.24 37.00 35.07 42.45 44.10 49.84 48.71 45.33 39.42 37.80 31.90 39.96
1969 25.74 29.04 30.16 35.60 41.42 51.13 44.84 45.71 48.67 38.10 36.87 37.77 38.75
1970 35.97 34.36 34.00 38.00 42.87 47.73 50.32 48.84 43.03 39.00 37.70 32.39 40.35
1971 33.52 32.93 33.03 36.17 43.42 46.07 50.10 49.97 42.73 38.61 38.07 31.06 39.64
1972 29.58 33.62 37.26 34.55 a 44.13 a 46.00 47.10 47.61 43.07 36.58 36.97 30.00 38.87
1973 31.16 31.68 34.10 36.33 40.29 46.37 48.19 45.48 44.47 40.68 34.73 38.06 39.30
1974 28.48 34.36 34.81 38.47 39.39 43.83 47.13 a 49.97 44.83 36.74 37.77 36.23 39.33
1975 33.03 31.71 30.31 b 32.13 40.87 44.83 a 48.58 48.19 42.40 40.65 34.37 32.16 38.27
1976 32.10 29.48 31.26 34.37 38.90 42.80 46.42 48.39 45.37 37.65 33.57 32.32 37.72
1977 27.03 33.50 32.35 36.37 38.74 46.43 46.74 51.65 43.79 a 37.61 34.60 35.42 38.69
1978 35.52 37.50 35.45 38.37 40.03 48.40 50.94 49.87 46.63 39.06 30.23 28.19 40.02
1979 23.13 a 32.30 a 36.00 39.10 42.87 44.70 50.16 50.16 48.87 43.97 b 34.67 39.35 40.44
1980 28.48 36.31 37.48 38.27 42.97 47.07 50.50 a 49.74 47.63 40.13 39.60 37.81 41.33
1981 35.71 35.32 35.55 39.57 43.63 a 47.80 50.97 51.03 45.93 38.84 36.77 35.45 41.38
1982 31.39 33.54 34.19 34.33 40.10 47.57 50.16 49.68 46.90 41.48 34.20 33.61 39.76
1983 37.58 38.68 39.06 36.20 45.00 48.00 51.42 49.97 43.57 35.13 38.43 28.77 40.98
1984 33.77 34.45 38.13 34.93 39.71 44.67 44.94 44.03 42.87 38.32 35.83 29.29 38.41
1985 28.35 30.29 31.71 39.03 41.45 44.73 49.71 46.68 43.27 39.26 28.30 27.48 37.52
1986 36.65 35.07 37.35 35.67 41.23 47.40 49.23 51.19 44.47 40.81 38.03 34.97 41.00
1987 33.29 36.25 37.52 38.73 44.00 44.73 49.74 48.61 46.03 38.32 39.83 31.55 40.72
1988 33.16 34.21 33.81 37.43 42.26 44.53 48.19 47.39 43.70 44.94 37.47 31.74 39.90
1989 33.42 25.18 36.32 38.27 41.94 48.53 48.26 49.39 43.60 40.94 38.57 35.29 39.97
1990 35.19 29.54 35.58 40.67 41.81 48.33 50.45 50.90 49.87 39.61 38.50 27.32 40.65
1991 31.68 38.25 33.81 37.97 44.03 46.07 47.90 50.65 46.37 36.87 39.03 37.19 40.82
1992 35.94 37.03 36.74 40.30 42.03 48.93 52.26 49.48 43.50 42.03 35.97 32.94 41.43
1993 27.94 28.93 34.84 40.20 44.67 s 48.50 x 52.00 50.32 45.03 42.42 29.87 33.13 38.47
1994 36.90 32.04 36.10 40.37 42.71 45.80 49.55 48.23 47.80 37.29 32.33 34.87 40.33
1995 37.55 36.18 34.65 37.30 44.68 47.17 51.77 47.90 51.10 41.29 41.23 36.52 42.28
1996 35.16 32.14 35.90 41.00 41.10 44.47 49.94 48.65 44.03 40.19 36.10 34.94 40.30
1997 35.23 34.07 35.84 38.10 44.00 46.60 48.52 51.94 47.53 42.16 39.10 33.48 41.38
1998 36.61 38.14 37.39 36.00 44.84 48.80 54.61 49.16 44.63 40.42 40.13 32.61 41.95
1999 34.60 a 35.59 a 33.32 33.40 40.29 46.90 48.83 a 51.16 42.14 a 39.19 41.37 c 35.97 a 40.23
2000 31.81 34.72 34.55 39.00 42.84 45.28 a 50.29 46.83 a 44.76 a 39.83 b 33.20 34.23 a 39.78
2001 33.84 29.89 35.41 b 36.43 40.90 a 42.73 47.10 51.00 d ----- z ----- z 38.80 33.60 a 38.97
2002 35.35 32.68 33.55 38.27 39.65 47.60 49.94 47.97 44.37 37.29 38.07 36.68 40.12
2003 38.77 32.86 38.84 37.97 39.45 47.07 47.48 46.77 46.80 45.10 32.53 35.10 40.73
2004 33.90 35.07 36.45 36.47 44.42 48.07 52.52 53.74 45.90 42.68 34.63 34.52 41.53
2005 34.52 29.21 36.32 39.27 46.68 47.13 48.68 49.84 40.80 42.03 33.63 34.29 40.20
2006 38.23 29.68 34.13 37.47 42.58 46.83 49.52 47.19 44.83 38.68 37.27 33.94 40.03
2007 29.00 35.82 37.94 37.00 39.65 45.23 51.97 49.65 45.70 38.00 32.43 33.71 39.67
2008 29.32 33.38 32.94 33.70 44.23 45.30 46.74 51.06 44.07 38.42 39.00 29.14 i 39.83
2009 27.47 n 30.29 31.16 34.93 ----- z 47.40 51.45 48.83 h 47.65 g 34.44 m 34.70 28.77 r 38.32
2010 33.78 h ----- z ----- z 39.10 i 40.12 f 44.27 s ----- z ----- z ----- z ----- z 32.24 m ----- z 9999.00
2011 32.68 30.46 36.71 33.95 h 40.12 o 53.80 y 46.14 q 49.47 l 46.17 42.42 e 28.40 27.35 34.89
2012 27.55 30.55 33.42 29.07 29.81 33.42 f ----- z ----- z 37.00 z 31.19 17.23 0.00 a 24.85
2013 0.00 0.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 0.00
Period of Record Statistics
MEAN 32.29 32.76 35.02 37.18 41.72 46.43 49.47 49.27 45.51 40.07 36.04 33.04 40.22
S.D. 5.90 5.60 2.15 2.48 2.57 1.75 1.98 1.95 2.33 2.85 4.25 5.74 1.15
SKEW -3.47 -4.03 -0.34 -0.77 -1.94 0.06 -0.16 -0.32 0.54 -0.19 -1.90 -4.04 -0.26
MAX 38.77 40.61 39.06 41.00 46.68 51.13 54.61 53.74 51.10 46.45 41.73 39.35 42.88
MIN 0.00 0.00 30.16 29.07 29.81 42.73 44.84 44.03 40.80 31.19 17.23 0.00 37.52
NO YRS 49 50 49 49 47 47 48 47 47 48 50 48 43