WAPATO, WASHINGTON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(458959)

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
1915 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 38.77 29.68 b 24.86 b 31.10
1916 11.55 27.36 a 35.10 38.97 43.06 51.13 54.29 55.90 47.97 36.31 b 25.10 19.23 37.16
1917 18.50 a 26.63 a 28.32 36.37 c 44.90 49.30 57.59 b 56.83 b 50.30 38.19 33.63 32.65 39.43
1918 28.94 25.89 32.10 37.83 42.90 55.77 58.39 53.77 51.53 41.45 30.90 a 28.39 40.65
1919 22.61 27.43 33.19 39.63 44.48 49.03 58.55 56.10 47.03 35.90 30.13 11.87 a 38.00
1920 22.39 26.69 32.00 36.87 43.57 a 51.00 60.71 56.81 47.47 39.77 30.60 27.48 39.61
1921 24.97 29.86 34.61 37.10 46.97 53.17 57.35 57.26 43.77 39.65 28.13 23.77 39.72
1922 8.97 22.18 30.26 37.50 44.61 56.90 61.06 58.03 51.93 ----- z ----- z ----- z 41.27
1923 ----- z ----- z ----- z 39.67 43.83 b 53.10 57.43 a ----- z ----- z ----- z ----- z ----- z 48.51
1924 24.15 k 29.57 a 28.29 34.77 50.65 52.57 57.65 54.86 b 48.33 38.14 c 33.27 17.69 b 40.53
1925 26.71 32.86 33.83 a 42.10 50.58 55.43 64.74 57.16 50.87 38.77 28.13 31.61 42.73
1926 29.58 31.96 a 35.42 42.68 b 42.13 49.90 58.71 50.94 37.91 g 38.16 31.53 20.90 39.26
1927 20.23 28.46 32.06 36.73 43.90 55.20 61.06 57.39 47.63 38.83 a 33.63 18.19 39.44
1928 23.61 25.86 33.57 a 35.96 b ----- z 54.13 62.24 b 56.30 a 49.13 37.90 30.10 23.32 39.29
1929 9.82 c 10.82 33.23 35.57 46.90 52.73 58.16 58.45 46.00 a 38.39 22.37 26.10 36.54
1930 3.90 30.39 34.73 a 42.47 46.20 a 50.33 61.68 59.87 49.33 34.58 29.17 27.45 39.18
1931 27.97 a 27.86 33.16 40.10 50.58 53.55 a 60.39 59.00 a 48.62 a 38.97 a 26.17 19.00 a 40.45
1932 19.03 a 25.72 35.32 42.40 j 48.03 56.30 56.16 57.43 a 48.03 40.10 31.70 19.26 39.74
1933 24.13 19.61 32.42 38.27 44.87 55.37 60.45 58.67 a 46.70 41.48 31.90 33.23 40.59
1934 30.84 31.50 36.35 48.27 51.81 57.33 60.13 a 60.13 47.52 a 44.35 36.13 30.32 44.56
1935 25.87 27.64 31.10 37.10 48.65 53.47 59.71 55.45 51.00 37.26 25.97 27.10 a 40.03
1936 29.13 15.90 31.94 44.33 52.16 57.30 61.16 60.26 49.17 a 39.42 22.73 26.65 40.85
1937 6.87 19.43 36.03 39.33 46.90 56.10 62.81 54.06 51.93 42.90 35.73 30.16 40.19
1938 28.58 29.32 33.13 41.82 b 47.97 57.07 63.58 56.35 53.80 40.39 26.90 26.13 42.09
1939 26.97 25.19 a 35.61 40.97 49.41 b 52.53 59.10 58.06 49.67 39.58 26.13 31.10 41.19
1940 24.38 b 29.79 36.48 41.37 49.86 b 57.53 61.35 58.82 c 53.60 43.39 26.75 b 25.90 42.44
1941 27.55 29.04 35.35 43.00 47.65 53.60 65.81 59.74 47.43 39.90 32.43 29.26 42.56
1942 19.68 28.46 30.74 40.50 47.61 51.83 61.74 61.62 b 50.83 39.74 31.70 24.90 40.78
1943 15.13 29.27 b 29.71 43.40 45.90 52.93 60.35 56.19 51.40 40.77 32.67 26.16 40.32
1944 20.94 28.07 29.58 40.53 48.42 54.20 61.26 56.94 51.97 42.87 31.27 25.48 40.96
1945 29.45 30.61 33.19 37.93 49.74 53.67 59.86 b 61.46 e 46.82 b 40.77 a 29.63 26.23 41.61
1946 25.63 a 29.07 31.77 a 37.17 47.45 b 53.41 c 60.48 58.74 48.47 36.65 25.33 26.35 40.04
1947 18.13 28.68 35.74 41.90 52.27 e 55.33 c 59.93 a 56.45 50.27 42.90 32.48 a 27.39 41.79
1948 ----- z ----- z ----- z ----- z ----- z 59.66 a 58.00 a 55.60 a 47.90 a 36.80 f 30.13 21.00 45.38
1949 6.42 23.11 35.03 41.40 52.43 a 53.28 a 59.52 58.83 a 51.57 b 34.43 a 34.68 b 26.90 39.80
1950 6.97 23.39 31.20 k 37.22 g 45.26 55.47 60.35 60.47 a 51.57 41.13 33.87 32.45 41.09
1951 25.90 28.89 29.90 39.27 47.52 55.07 60.00 58.42 50.10 40.16 29.93 21.84 40.58
1952 17.39 28.45 31.12 e 41.79 b 48.87 54.27 60.06 56.66 b 49.00 41.10 25.07 30.03 40.32
1953 35.10 30.43 32.73 a 38.37 45.17 a 48.93 57.30 a 56.16 48.57 39.26 34.36 e 29.90 41.36
1954 22.90 30.50 30.48 37.50 48.13 49.31 a 55.74 53.74 45.77 33.16 34.70 25.23 i 40.18
1955 25.21 g 24.55 h 28.38 b 34.70 c 44.22 d 53.46 f 55.84 56.00 47.30 37.00 24.27 21.58 38.81
1956 23.27 a 17.69 33.39 42.53 51.77 51.07 61.48 58.90 48.73 39.58 29.10 27.16 40.39
1957 10.16 25.86 34.32 41.73 52.97 55.13 55.48 54.58 50.80 41.55 b 28.70 29.45 40.06
1958 29.42 36.86 32.29 39.07 53.87 59.57 63.26 60.65 47.77 38.03 31.47 29.74 43.50
1959 26.55 29.14 32.77 41.27 43.90 53.20 59.32 54.42 49.03 39.74 26.40 26.42 40.18
1960 15.65 28.31 32.58 40.17 44.77 54.93 64.04 c 54.00 49.37 41.07 a 31.03 24.23 40.01
1961 28.74 35.14 36.42 41.00 47.35 57.70 62.55 63.35 47.73 37.90 25.60 27.03 42.54
1962 23.61 29.71 30.71 42.43 45.52 52.70 58.13 54.03 48.90 37.68 33.53 30.52 40.62
1963 18.06 28.89 34.00 38.77 48.13 54.40 57.68 i 58.77 55.10 42.19 34.23 25.90 39.86
1964 28.16 26.21 29.77 36.37 45.35 53.83 57.74 54.39 47.67 38.19 32.00 20.71 39.20
1965 24.10 30.50 30.65 42.63 45.94 54.57 59.65 59.74 48.10 40.29 36.73 24.84 41.48
1966 26.00 29.07 33.58 41.10 48.39 52.43 58.19 59.29 52.37 38.87 34.37 29.77 41.95
1967 31.35 30.68 31.84 35.00 47.03 55.30 60.42 61.32 52.10 41.26 30.77 24.58 41.80
1968 25.03 31.59 35.06 36.80 46.23 54.90 62.23 56.39 50.53 37.19 32.93 23.55 41.04
1969 15.03 24.43 32.97 39.30 49.71 58.13 57.45 53.29 50.27 36.52 30.03 29.90 39.75
1970 24.19 31.79 31.94 35.67 44.48 57.20 60.55 57.74 44.47 35.39 30.43 24.19 39.84
1971 27.52 28.93 30.03 37.73 49.26 50.50 60.42 63.06 44.73 37.97 30.97 24.65 40.48
1972 21.97 25.45 34.97 35.77 51.52 54.80 59.61 59.97 44.83 35.81 33.63 19.65 39.83
1973 21.90 29.61 34.68 41.00 48.74 54.53 62.42 58.71 51.10 40.29 31.27 30.94 42.10
1974 20.19 29.93 33.74 40.20 44.58 56.63 56.97 58.94 47.97 36.03 34.57 29.55 40.77
1975 25.90 26.71 31.35 37.03 45.27 a 51.43 63.16 55.81 49.00 39.97 29.57 28.71 40.33
1976 26.94 27.34 30.06 38.03 45.94 49.33 58.13 55.68 51.83 37.03 29.43 22.35 39.34
1977 20.10 29.50 32.90 43.73 43.16 58.27 57.77 64.13 48.80 38.68 30.03 27.81 41.24
1978 27.10 31.86 36.58 40.23 44.32 54.97 60.16 56.16 48.80 36.10 24.10 19.52 39.99
1979 9.16 25.43 34.71 38.57 49.42 54.73 61.48 59.61 52.20 41.87 29.27 28.71 40.43
1980 15.48 27.37 b 32.27 e 42.17 47.65 51.56 c 57.81 53.10 48.63 38.00 32.57 25.42 l 40.60
1981 34.17 b 31.64 35.58 38.85 d 46.42 50.27 55.35 58.42 46.40 34.87 29.43 20.52 40.16
1982 17.16 26.39 30.68 33.60 44.81 55.17 56.48 55.16 46.40 33.06 24.03 20.55 36.96
1983 27.65 30.79 36.74 36.63 47.13 48.97 54.19 56.71 42.23 34.29 33.47 14.00 38.57
1984 21.65 27.79 33.65 34.80 40.48 48.90 55.26 51.68 45.37 33.71 30.37 12.68 36.36
1985 22.48 19.36 30.90 39.27 47.19 53.13 62.52 53.87 44.87 36.26 18.53 15.13 36.96
1986 24.00 29.39 36.65 36.63 47.81 57.07 54.48 59.52 46.07 37.65 31.77 26.03 40.59
1987 23.90 28.93 35.13 42.90 49.61 54.63 58.29 55.81 48.83 35.29 31.13 23.00 40.62
1988 22.35 26.79 32.42 41.13 44.74 53.60 58.55 55.32 46.73 42.58 33.33 22.00 39.96
1989 ----- z 16.79 31.39 42.23 46.90 55.20 57.55 55.65 47.97 37.29 34.20 26.16 41.03
1990 29.39 25.79 32.97 43.07 44.13 54.50 61.74 59.84 52.57 35.45 32.13 15.16 40.56
1991 17.90 30.43 30.55 39.63 45.65 51.07 59.06 60.23 49.77 36.52 32.20 26.61 39.97
1992 29.32 31.72 37.03 40.90 48.84 58.93 58.39 57.13 46.37 39.13 31.60 18.23 41.47
1993 16.68 22.96 30.90 38.33 49.55 52.07 53.00 54.87 47.00 38.48 20.40 27.42 37.64
1994 28.35 25.25 33.87 42.87 48.97 51.73 62.06 57.68 51.10 37.39 27.63 26.00 41.08
1995 24.61 30.32 32.68 38.30 47.84 52.23 58.29 52.81 51.37 36.74 31.97 26.74 40.32
1996 21.13 20.93 33.03 39.87 42.74 51.13 59.06 54.90 44.90 37.10 26.20 18.97 37.50
1997 21.45 28.64 34.13 37.53 48.35 51.63 57.16 59.58 50.80 37.65 32.37 24.00 40.27
1998 24.19 31.04 35.13 39.13 ----- z 54.37 63.74 58.65 52.17 35.00 33.90 22.26 40.87
1999 26.72 b 30.36 33.42 36.97 42.71 51.57 54.77 59.84 ----- z 35.71 35.53 28.84 39.68
2000 24.97 29.32 a 32.19 41.07 46.52 52.93 57.71 56.00 47.77 36.73 a 24.87 24.42 39.54
2001 27.42 26.32 32.74 38.07 46.23 51.40 60.03 59.00 50.23 37.58 31.73 28.16 40.74
2002 27.58 26.04 29.58 38.00 44.74 54.63 60.00 54.81 47.23 34.26 27.37 30.19 39.54
2003 31.71 27.57 36.45 39.80 46.03 55.57 60.74 57.06 50.23 41.39 24.97 26.58 41.51
2004 22.71 27.59 35.81 39.73 46.48 54.53 60.32 60.29 49.00 38.97 27.13 25.94 40.71
2005 24.48 23.39 35.06 39.73 50.32 51.13 59.39 ----- z 47.43 39.35 29.33 19.42 38.10
2006 29.87 24.04 ----- z 39.93 45.81 54.33 61.39 55.03 46.77 35.94 29.20 20.48 40.25
2007 19.74 27.96 33.07 a 37.60 46.23 52.80 62.52 55.45 46.50 35.90 27.43 25.19 39.20
2008 19.29 29.76 ----- z 33.43 49.13 50.90 58.84 ----- z ----- z ----- z ----- z 15.55 36.70
2009 24.13 ----- z ----- z ----- z 45.55 ----- z ----- z ----- z 49.53 35.65 28.43 15.65 33.16
2010 29.74 31.93 33.10 39.10 44.19 51.67 58.68 55.58 50.13 40.10 27.47 27.19 40.74
2011 25.23 22.61 32.55 33.90 42.65 50.93 56.84 59.13 50.90 39.10 24.73 19.90 38.21
2012 23.33 z 26.41 31.97 40.03 44.71 50.00 60.03 58.23 49.33 z 37.42 ----- z 27.90 41.86
2013 22.84 25.86 32.52 42.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 27.07
Period of Record Statistics
MEAN 22.77 27.43 33.02 39.30 46.95 53.64 59.43 57.30 48.89 38.36 29.94 24.71 40.27
S.D. 6.46 4.09 2.15 2.70 2.74 2.57 2.52 2.58 2.42 2.47 3.65 4.77 1.51
SKEW -0.93 -1.28 -0.11 0.15 0.29 0.12 -0.11 0.14 -0.07 0.07 -0.62 -0.63 -0.35
MAX 35.10 36.86 37.03 48.27 53.87 59.66 65.81 64.13 55.10 44.35 36.73 33.23 44.56
MIN 3.90 10.82 28.29 33.43 40.48 48.90 53.00 50.94 42.23 33.06 18.53 11.87 36.36
NO YRS 92 94 92 93 94 95 95 93 92 94 94 94 77