WHITMAN MISSION, WASHINGTON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(459200)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 39.42 37.37 32.35 36.38
1963 19.97 32.29 34.35 38.43 42.45 50.27 49.87 52.48 49.33 40.23 35.17 27.52 39.36
1964 30.68 27.76 31.97 36.43 41.10 50.20 52.84 50.27 a 43.20 34.10 33.80 24.29 38.05
1965 29.71 32.75 27.48 40.33 42.13 a 48.30 53.55 55.39 41.87 38.39 35.83 a 27.37 a 39.42
1966 30.03 29.43 32.61 35.53 42.13 48.20 51.32 50.45 48.90 37.58 35.00 a 33.32 39.54
1967 35.30 a 31.79 34.03 35.10 42.45 50.93 54.00 52.74 49.43 38.32 30.53 28.13 40.23
1968 28.19 33.90 34.94 36.13 42.94 50.17 53.97 52.42 46.90 35.65 33.77 24.35 39.44
1969 14.74 28.93 32.13 38.67 45.23 53.47 53.23 49.68 48.47 35.00 31.63 30.16 38.44
1970 27.19 34.04 32.39 34.97 44.06 53.83 56.45 49.94 42.73 34.16 31.45 a 27.42 39.05
1971 32.43 a 29.14 31.10 35.80 44.52 49.13 52.71 53.94 39.70 33.16 32.93 28.23 38.57
1972 24.16 28.72 36.13 34.47 43.84 51.23 53.23 51.68 42.67 c 35.32 33.27 17.97 37.72
1973 20.23 28.11 35.52 36.00 43.77 50.17 51.29 51.94 46.40 38.06 34.40 33.19 39.09
1974 20.58 33.07 33.10 b 39.77 43.52 49.77 53.32 51.71 40.50 31.71 35.63 30.42 38.59
1975 26.61 26.61 30.61 34.07 41.42 47.87 56.65 49.45 39.30 40.26 30.30 30.39 37.79
1976 30.35 29.45 30.35 34.87 40.29 44.17 51.68 52.58 44.73 31.81 32.60 24.52 37.28
1977 20.23 30.39 34.32 36.27 41.06 49.73 52.03 55.84 44.67 33.74 29.33 30.26 38.16
1978 26.26 31.54 34.17 a 39.33 42.81 47.37 53.48 52.74 44.57 29.68 22.30 21.61 37.15
1979 7.74 28.39 32.97 39.93 43.97 47.63 51.77 54.43 a 44.97 37.71 29.50 30.71 37.48
1980 19.39 29.55 33.77 a 39.40 45.57 a 48.66 a 52.26 46.65 45.07 35.19 35.13 29.87 a 38.37
1981 32.24 b 30.18 34.03 38.27 43.32 48.37 51.10 50.17 b 41.60 33.48 31.83 a 29.00 38.63
1982 25.00 29.25 32.06 32.83 40.65 50.90 50.71 48.71 39.80 34.03 27.93 28.48 36.70
1983 30.06 32.82 36.23 33.83 42.94 48.03 50.00 52.23 38.13 34.13 37.60 15.87 37.66
1984 27.29 32.66 37.97 38.30 41.65 47.67 50.19 49.03 42.50 32.74 31.83 20.81 37.72
1985 23.16 20.64 30.29 40.53 44.65 46.63 52.65 47.68 40.77 ----- z 19.60 14.63 a 34.66
1986 26.42 30.25 36.65 37.47 45.55 52.63 54.94 54.45 45.33 36.29 36.13 28.42 40.38
1987 23.42 31.36 36.81 39.83 46.35 49.70 53.71 49.00 43.43 30.10 31.47 26.74 38.49
1988 25.52 27.21 32.13 39.77 44.32 50.57 51.87 47.81 42.73 38.71 36.57 26.65 38.65
1989 30.94 14.75 32.77 39.60 42.71 49.73 51.65 52.29 40.20 35.10 35.57 28.81 37.84
1990 33.52 28.04 31.48 40.00 43.13 50.37 52.97 53.42 46.30 36.16 35.03 15.52 38.83
1991 23.71 32.79 32.26 38.90 44.00 47.37 52.71 52.84 41.43 32.19 34.07 31.94 38.68
1992 31.48 32.97 32.90 39.70 43.26 51.97 53.58 51.19 43.03 35.94 34.13 25.32 39.62
1993 15.00 21.61 31.29 39.20 47.58 50.60 52.81 49.65 40.77 36.06 20.87 30.32 36.31
1994 31.61 27.96 31.06 42.57 45.87 48.43 54.58 52.35 44.13 34.55 32.53 29.58 39.60
1995 28.29 32.32 31.29 36.00 43.55 48.63 55.42 47.90 46.00 35.84 36.70 28.81 39.23
1996 25.23 21.76 32.58 39.47 43.00 47.40 52.87 49.03 43.93 36.35 30.45 j 25.32 37.90
1997 24.80 p 31.54 37.45 36.70 44.97 49.60 52.29 54.10 47.10 35.87 33.47 29.39 41.13
1998 26.74 31.71 32.39 35.27 ----- z 50.43 ----- z ----- z 49.63 ----- z ----- z 26.42 36.09
1999 32.50 a 33.25 32.74 32.77 40.13 49.00 50.68 53.34 b 38.57 32.45 34.59 a 33.33 a 38.61
2000 29.83 b 30.90 32.16 38.70 45.16 48.40 53.42 50.77 a 44.13 35.35 25.45 a 26.97 a 38.44
2001 29.13 a 27.96 32.23 36.73 42.61 47.73 53.07 a 51.37 a 44.77 34.57 a 32.97 a 29.77 a 38.58
2002 29.74 26.89 32.35 38.00 42.00 51.40 55.77 49.26 41.57 29.87 28.97 32.97 38.23
2003 34.94 28.46 38.35 38.67 44.55 50.93 54.71 53.16 46.03 38.52 26.00 28.74 40.26
2004 23.13 29.79 34.45 36.30 45.32 50.60 55.55 57.48 45.27 38.13 28.97 29.29 39.52
2005 26.32 21.07 34.10 38.13 47.77 49.33 53.52 51.90 41.33 37.77 31.00 22.81 37.92
2006 34.03 24.11 33.45 37.53 43.52 51.80 56.58 49.90 42.87 34.42 33.03 24.81 38.84
2007 22.84 29.82 33.45 36.60 43.06 50.80 56.87 50.61 42.37 34.87 27.77 29.55 38.22
2008 22.77 30.41 31.00 33.03 45.39 48.13 52.55 50.74 39.90 31.77 31.90 17.71 36.28
2009 26.45 27.57 29.87 34.27 42.65 51.37 53.39 54.10 43.43 33.94 30.17 19.13 37.19
2010 31.23 30.68 29.90 35.33 40.77 50.50 51.81 51.00 46.60 38.84 27.37 27.06 38.42
2011 28.43 a 24.79 32.83 a 33.53 40.68 48.50 49.61 52.13 43.30 38.84 26.75 b 22.80 a 36.85
2012 23.25 c 29.24 31.81 36.83 41.74 48.70 54.60 a 49.06 40.59 a 35.06 35.00 b 25.61 37.63
2013 21.77 a 28.40 h 32.28 f 33.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 21.77
Period of Record Statistics
MEAN 26.40 29.01 33.05 37.20 43.39 49.55 53.06 51.45 43.62 35.34 31.74 26.76 38.42
S.D. 5.53 3.87 2.21 2.35 1.80 1.80 1.81 2.29 2.93 2.66 4.12 4.71 0.99
SKEW -0.92 -1.49 0.40 -0.10 0.29 -0.10 0.26 0.22 0.26 -0.15 -1.08 -0.97 -0.15
MAX 35.30 34.04 38.35 42.57 47.77 53.83 56.87 57.48 49.63 40.26 37.60 33.33 40.38
MIN 7.74 14.75 27.48 32.77 40.13 44.17 49.61 46.65 38.13 29.68 19.60 14.63 36.28
NO YRS 50 50 50 50 49 50 49 49 50 49 49 51 46