WHITMAN MISSION, WASHINGTON

Monthly Average 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 51.94 46.05 39.82 45.94
1963 29.00 40.38 46.65 49.48 57.89 65.80 67.39 71.16 66.88 55.16 44.38 32.65 52.23
1964 39.85 40.34 43.21 49.42 55.95 65.07 70.90 67.20 a 60.35 49.50 40.48 32.39 51.22
1965 36.08 42.32 40.97 53.55 57.10 a 64.43 71.94 71.52 58.83 54.71 44.73 b 35.88 a 52.67
1966 36.95 38.93 44.90 50.92 59.21 63.28 68.68 69.31 65.82 52.55 44.21 a 41.05 52.98
1967 43.67 a 42.59 44.95 46.55 57.06 67.43 73.29 74.68 67.92 53.40 41.18 36.45 54.10
1968 37.71 42.64 47.74 48.93 57.68 65.62 73.55 68.18 62.72 49.60 42.33 32.68 52.45
1969 21.66 35.25 44.39 50.80 60.84 69.17 70.66 68.10 63.75 48.56 42.23 35.87 50.94
1970 33.66 41.32 43.76 46.95 58.74 69.48 74.03 70.48 58.00 48.71 40.98 a 36.16 51.86
1971 41.07 a 40.12 42.16 49.40 59.05 62.08 72.23 73.71 56.72 48.32 42.80 37.08 52.06
1972 32.94 37.00 47.65 47.43 59.40 a 66.33 70.66 71.24 57.62 d 50.05 41.73 27.24 50.77
1973 30.32 37.00 46.90 50.73 59.87 65.40 71.00 70.00 61.98 51.68 41.07 40.55 52.21
1974 28.66 43.05 45.29 c 50.45 56.00 67.17 70.37 70.35 61.63 49.69 44.23 38.97 52.16
1975 34.48 35.36 41.53 46.08 55.94 62.62 73.98 66.87 60.57 52.03 41.52 37.56 50.71
1976 37.81 39.12 42.15 47.75 57.15 60.60 70.11 67.50 64.05 49.37 41.53 33.52 50.89
1977 25.13 40.45 44.76 53.23 54.52 67.82 69.68 74.42 59.42 49.34 40.03 37.11 51.32
1978 32.39 39.38 46.97 a 50.62 56.39 65.22 71.15 68.42 59.62 48.90 33.18 30.90 50.26
1979 15.06 37.12 45.68 51.42 59.08 65.38 71.31 71.30 a 64.14 b 53.02 35.93 38.73 50.68
1980 26.37 35.98 43.43 a 53.48 58.25 a 62.21 a 70.52 65.47 61.73 49.62 b 42.57 37.87 a 50.62
1981 36.61 c 38.98 46.11 50.85 56.87 61.97 68.76 71.76 b 61.15 48.44 42.59 a 36.63 51.73
1982 33.90 38.91 44.11 47.02 56.13 67.43 69.69 68.27 57.25 47.97 35.88 35.00 50.13
1983 38.85 41.54 46.82 48.42 59.27 63.20 67.68 71.24 56.73 49.45 46.40 23.35 51.08
1984 33.74 n 39.76 47.76 49.58 54.69 62.57 70.95 68.97 61.70 j 47.79 41.33 28.87 51.23
1985 27.03 31.89 43.85 54.72 59.94 64.88 75.02 66.52 56.70 ----- z 27.90 20.07 a 48.05
1986 33.77 38.84 48.42 50.40 58.66 69.97 70.34 74.44 59.63 52.35 43.73 32.74 52.77
1987 30.19 39.38 47.52 54.58 61.63 66.83 69.58 68.37 63.80 50.13 42.86 b 34.58 52.45
1988 33.13 39.59 45.03 52.80 57.98 64.68 70.79 67.98 60.98 55.60 45.55 33.31 52.29
1989 38.08 23.36 42.27 53.07 56.37 66.25 69.65 68.61 60.65 50.56 45.15 34.23 50.69
1990 40.26 36.98 44.82 54.70 56.42 64.32 72.74 70.81 66.12 50.23 45.43 25.00 52.32
1991 30.58 44.11 43.13 51.72 56.06 60.77 70.61 72.23 62.22 49.95 40.72 37.53 51.64
1992 38.87 42.02 47.15 53.73 60.84 69.28 69.82 70.63 59.37 51.29 40.83 33.21 53.09
1993 22.90 28.68 41.15 51.27 61.53 63.60 66.37 67.08 61.02 52.42 33.88 36.34 48.85
1994 39.84 36.27 46.19 55.40 60.27 64.58 74.18 70.81 63.87 49.74 40.83 36.66 53.22
1995 33.29 42.66 44.34 49.37 58.27 62.83 71.73 66.21 64.27 48.87 45.07 34.68 51.80
1996 33.60 31.78 43.66 52.65 55.31 63.30 72.65 69.19 60.32 50.68 39.35 j 32.82 a 51.45
1997 31.10 p 40.05 47.74 49.63 60.06 63.70 69.66 72.56 63.45 50.61 41.40 35.98 54.08
1998 36.19 b 41.84 44.89 49.42 ----- z 65.18 ----- z ----- z 66.92 ----- z ----- z 35.80 a 48.60
1999 40.60 a 42.77 44.94 47.98 54.95 64.15 69.13 70.91 b 59.23 48.84 45.26 a 39.62 a 52.36
2000 36.02 b 39.34 44.10 53.35 58.55 64.13 70.90 69.57 a 60.05 49.11 33.88 a 31.72 a 50.89
2001 33.33 a 36.52 45.02 49.25 59.02 62.33 70.23 a 71.10 a 64.03 49.68 a 41.66 a 37.00 a 51.60
2002 37.32 38.34 41.84 51.30 56.27 66.50 73.92 67.50 60.38 46.82 39.05 39.00 51.52
2003 40.40 38.84 49.34 50.78 57.76 67.15 73.98 71.85 63.90 54.50 37.22 34.94 53.39
2004 27.79 38.29 48.76 51.52 57.97 66.05 73.63 73.76 61.48 52.52 39.92 36.87 52.38
2005 33.19 35.82 47.82 51.47 60.82 63.72 72.53 71.73 60.12 52.18 39.20 29.27 51.49
2006 42.79 35.29 44.73 50.78 58.77 66.32 75.52 69.63 61.63 49.95 42.20 31.02 52.39
2007 30.87 37.98 46.24 50.33 58.92 65.93 75.13 69.15 60.70 49.11 38.97 36.34 51.64
2008 31.58 39.79 42.98 47.18 59.03 63.48 71.21 69.74 59.60 48.35 41.73 26.45 50.10
2009 33.68 35.39 41.02 48.87 58.10 66.47 73.11 71.74 63.28 47.00 41.97 26.27 50.57
2010 38.06 40.25 44.65 49.45 54.29 63.43 70.32 69.21 61.93 51.97 36.98 33.52 51.17
2011 36.88 a 35.48 45.07 a 45.75 53.45 61.92 67.05 71.34 63.25 51.50 39.36 b 31.23 a 50.19
2012 34.68 c 37.31 43.73 51.42 56.66 62.17 72.13 a 70.53 61.17 a 50.18 43.02 b 31.82 51.23
2013 27.38 a 39.83 h 45.54 f 53.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 27.38
Period of Record Statistics
MEAN 33.77 38.33 44.97 50.52 57.86 64.88 71.23 70.07 61.57 50.49 41.04 34.01 51.62
S.D. 5.75 3.78 2.15 2.39 1.98 2.26 2.15 2.23 2.73 2.07 3.70 4.48 1.04
SKEW -0.85 -1.56 0.01 0.03 -0.15 0.30 -0.01 0.14 0.25 0.65 -1.27 -1.00 -0.03
MAX 43.67 44.11 49.34 55.40 61.63 69.97 75.52 74.68 67.92 55.60 46.40 41.05 54.10
MIN 15.06 23.36 40.97 45.75 53.45 60.60 66.37 65.47 56.70 46.82 27.90 20.07 48.85
NO YRS 49 50 50 50 49 50 49 49 49 49 49 51 45