SUNNYSIDE, WASHINGTON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(458207)

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
1894 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 42.85 q 34.61 ----- z 22.71 28.66
1895 18.32 26.96 28.52 35.50 44.13 51.80 57.00 53.61 44.40 34.71 27.20 25.65 37.32
1896 24.58 31.21 28.84 34.97 42.16 49.23 60.03 54.74 46.47 37.45 20.83 30.65 38.43
1897 25.16 26.32 27.42 38.30 46.68 52.73 52.10 55.58 43.87 33.77 31.07 26.52 38.29
1898 20.52 31.89 28.35 36.53 43.77 51.63 54.81 57.39 46.70 35.74 29.90 19.48 38.06
1899 18.97 19.68 29.68 36.47 41.61 48.93 57.19 50.71 48.03 37.81 38.13 28.26 37.96
1900 26.90 25.39 35.45 38.73 45.81 53.80 55.29 51.94 47.60 38.29 28.90 33.13 40.10
1901 23.32 25.68 29.77 32.87 44.06 46.87 52.32 56.13 a 45.13 41.42 30.97 26.71 37.94
1902 22.52 27.79 32.06 36.50 46.65 48.47 52.32 52.26 44.67 38.58 31.93 26.10 38.32
1903 27.97 20.57 31.32 35.33 42.16 54.27 51.65 53.58 45.37 38.16 32.97 26.45 38.32
1904 26.13 25.66 32.87 39.67 41.90 48.86 a 56.16 52.71 45.83 38.06 34.37 26.71 39.08
1905 26.84 23.68 35.42 36.17 45.61 51.03 55.77 51.58 47.93 34.29 25.53 27.45 38.44
1906 27.87 32.25 29.29 39.43 44.61 46.73 60.55 53.81 45.47 39.48 31.43 29.42 40.03
1907 13.45 ----- z ----- z 33.00 v ----- z ----- z ----- z ----- z 42.90 37.13 30.90 ----- z 31.10
1908 ----- z ----- z ----- z ----- z 42.50 o 46.93 54.52 48.73 a 41.63 36.87 30.60 24.90 40.60
1909 13.23 29.25 28.84 32.00 39.74 49.37 50.29 44.84 45.47 36.68 33.30 20.45 35.29
1910 21.84 23.64 35.16 39.40 45.42 46.63 49.84 44.00 43.67 39.10 31.03 29.77 37.46
1911 23.42 25.04 29.48 32.23 41.23 48.23 52.35 48.87 43.93 33.87 25.87 22.48 35.58
1912 19.00 29.90 28.26 37.07 42.97 50.30 52.55 50.06 40.37 32.94 31.90 25.42 36.73
1913 18.42 20.50 28.39 36.40 42.16 50.23 51.71 50.81 41.47 35.23 32.50 26.65 36.20
1914 29.71 28.57 32.16 37.57 44.48 45.37 53.10 49.26 39.87 37.81 31.17 16.03 37.09
1915 18.42 29.81 a 34.97 38.60 44.90 47.87 52.68 53.68 41.37 36.29 28.17 24.77 37.63
1916 10.55 27.76 33.71 36.23 40.77 47.33 50.90 49.10 42.60 32.52 25.17 20.13 34.73
1917 18.71 27.50 26.39 36.53 42.19 46.03 51.42 50.77 45.33 34.45 31.60 32.87 36.98
1918 28.81 24.68 30.45 32.27 40.29 51.97 54.29 50.23 47.83 39.48 28.97 29.06 38.19
1919 22.32 27.71 30.84 36.17 41.42 44.43 50.35 50.16 42.13 33.52 29.13 12.32 35.04
1920 22.48 25.69 30.71 33.40 38.52 46.37 52.77 51.16 44.33 38.61 28.23 27.29 36.63
1921 26.03 29.71 32.16 35.03 42.35 50.00 48.58 50.03 40.13 35.58 26.80 22.39 36.57
1922 10.06 22.82 27.74 32.20 40.48 50.13 52.29 52.74 43.20 37.58 30.53 16.97 34.73
1923 27.45 19.50 26.90 36.07 43.26 50.07 54.52 52.87 45.43 37.32 29.60 24.10 37.26
1924 17.23 31.34 28.87 33.07 44.00 48.87 51.10 49.23 43.27 37.19 30.07 15.77 a 35.83
1925 25.68 31.79 30.65 38.40 45.61 47.53 52.74 49.55 46.50 35.13 a 27.97 30.58 38.51
1926 28.87 31.22 a 31.74 38.87 42.10 50.00 52.77 49.67 a 39.97 36.90 30.37 21.48 37.83
1927 20.94 30.32 30.39 33.69 a 41.19 51.17 51.45 52.10 a 45.37 37.35 33.53 18.39 37.16
1928 23.87 25.93 32.65 33.68 b 43.90 a 49.50 54.30 a 49.03 41.76 a 37.35 30.27 24.16 37.20
1929 14.03 11.07 30.47 a 33.77 41.55 b 49.45 a 50.48 49.84 41.93 a 34.87 20.67 26.71 33.74
1930 3.97 30.22 a 32.74 37.04 b 43.40 a 46.17 a 52.55 51.03 a 45.41 a 33.25 c 28.23 27.74 35.98
1931 28.37 a 26.78 a 32.35 36.93 45.61 50.23 53.39 49.10 45.37 35.65 26.43 18.48 37.39
1932 19.77 24.48 34.03 39.07 43.19 49.90 50.45 51.00 41.90 37.26 30.17 18.26 36.62
1933 21.77 16.61 30.39 36.33 43.06 49.63 52.81 51.48 43.33 38.13 31.13 32.94 37.30
1934 28.32 28.43 33.77 43.03 46.32 50.90 52.03 52.94 43.97 42.13 35.43 30.10 40.61
1935 26.58 27.32 29.65 35.07 42.81 49.63 53.68 48.65 45.93 34.84 24.83 26.52 37.12
1936 28.13 12.76 29.00 39.73 46.97 52.57 52.32 50.06 43.10 35.35 21.30 26.00 36.44
1937 5.52 17.25 32.23 36.47 43.32 51.70 55.23 48.26 45.93 38.84 33.50 28.58 36.40
1938 27.39 27.75 30.23 37.73 42.45 51.80 56.42 49.26 49.63 39.16 25.00 24.48 38.44
1939 27.13 24.18 33.26 38.07 45.23 48.67 53.45 51.81 45.93 36.94 25.17 29.52 38.28
1940 23.61 28.76 34.10 39.37 44.68 50.27 54.13 51.13 49.50 41.19 26.50 25.48 39.06
1941 26.26 27.46 32.35 39.17 44.55 49.90 56.77 52.68 43.40 36.48 30.33 27.13 38.87
1942 19.10 27.04 27.55 37.37 44.68 48.13 55.23 54.39 44.43 36.94 30.83 25.26 37.58
1943 13.97 26.61 28.03 36.57 42.23 48.10 53.61 51.00 46.00 38.48 31.97 25.26 36.82
1944 20.90 25.79 26.13 37.47 44.71 51.57 54.97 51.13 47.23 39.26 29.63 24.77 37.80
1945 28.06 29.25 30.39 35.90 a 46.32 48.77 52.52 52.19 43.83 37.32 29.83 25.65 38.34
1946 24.61 26.68 31.87 37.47 45.84 50.23 54.19 52.55 45.63 35.03 25.80 27.00 38.08
1947 17.81 26.75 32.94 40.03 48.65 51.27 54.97 50.71 48.03 42.19 31.57 27.32 39.35
1948 23.13 23.41 28.74 35.93 46.06 55.63 51.87 52.77 45.00 34.45 29.37 19.97 37.20
1949 5.16 21.71 32.58 37.87 48.03 49.27 51.68 52.00 49.17 33.68 35.57 27.03 36.98
1950 6.19 22.11 31.97 35.80 42.26 53.60 55.42 54.48 46.80 41.67 a 33.60 32.26 38.01
1951 26.03 27.25 28.55 37.07 47.52 52.53 54.52 52.00 48.60 38.61 29.77 22.74 38.77
1952 20.23 28.48 32.48 38.69 d 46.77 52.27 55.42 51.03 46.47 40.16 25.27 29.48 38.90
1953 35.39 30.75 32.87 37.70 43.77 48.03 53.90 54.90 46.47 39.65 34.20 29.81 40.62
1954 23.39 31.82 28.94 37.07 45.74 49.20 52.23 50.23 44.20 33.03 34.66 a 24.42 37.91
1955 25.74 26.14 27.71 34.30 43.23 51.80 52.45 46.61 41.63 39.00 25.17 23.42 36.43
1956 24.65 17.76 32.68 37.93 49.26 49.33 56.10 53.35 46.03 38.71 29.37 25.90 38.42
1957 9.81 24.11 32.87 39.00 50.39 52.10 52.48 50.65 48.03 39.45 28.43 29.48 38.07
1958 28.32 34.89 31.45 37.97 51.52 56.83 59.29 54.58 47.13 36.13 30.23 29.45 41.48
1959 24.84 27.93 31.65 37.67 42.16 51.30 54.65 50.10 47.83 38.10 25.20 25.19 38.05
1960 15.68 26.66 31.35 39.17 43.61 50.53 56.03 51.65 45.40 39.26 30.37 22.94 37.72
1961 27.32 33.75 34.71 38.90 45.58 54.20 56.68 57.42 44.07 34.97 a 24.36 b 26.48 39.87
1962 22.32 28.46 29.00 40.30 43.61 48.70 52.77 52.42 46.10 38.52 33.43 30.77 38.87
1963 17.35 28.82 32.65 38.03 44.10 51.27 51.81 53.13 50.30 39.61 34.30 26.19 38.96
1964 27.87 25.52 29.48 35.21 b 42.68 51.37 54.26 51.03 43.67 35.35 31.50 20.32 37.36
1965 24.29 29.96 29.16 40.10 43.68 52.03 55.16 55.39 44.13 38.06 36.20 24.21 b 39.36
1966 27.10 27.14 31.68 38.50 45.42 51.40 54.58 53.97 49.47 37.71 33.40 30.97 40.11
1967 30.45 28.64 32.26 35.47 45.74 54.87 55.74 55.39 50.63 38.90 30.53 25.32 40.33
1968 25.23 30.93 35.06 36.27 45.84 53.67 56.97 54.03 48.17 35.23 33.10 22.52 39.75
1969 15.23 23.89 31.94 38.53 47.74 57.70 53.42 50.00 48.30 34.52 29.87 29.19 38.36
1970 23.35 31.18 31.90 35.27 43.45 54.70 56.81 52.23 42.67 34.10 29.87 23.55 38.26
1971 27.65 27.64 29.48 36.57 46.39 49.37 55.35 56.81 43.47 35.52 30.07 25.29 38.63
1972 22.23 26.45 33.45 35.50 47.77 53.60 55.71 55.52 43.33 35.19 32.50 19.71 38.41
1973 21.90 29.79 32.23 37.87 44.74 51.20 54.87 50.71 47.27 38.16 32.40 30.10 39.27
1974 19.39 30.11 32.68 39.47 42.97 52.27 53.58 53.61 45.40 34.90 33.07 28.84 38.86
1975 26.35 26.57 31.35 34.57 43.84 50.47 59.13 52.97 44.50 39.00 29.57 28.68 38.92
1976 27.32 27.86 31.32 38.57 44.61 47.60 54.52 53.71 49.13 35.35 30.10 22.13 38.52
1977 20.61 29.86 33.03 40.40 42.48 54.17 54.19 58.29 46.73 35.77 28.13 28.48 39.35
1978 27.58 32.18 36.29 39.93 43.55 52.57 56.58 54.97 47.77 34.06 25.43 21.10 39.33
1979 8.61 25.71 32.94 38.77 46.32 51.37 55.94 55.42 48.40 41.48 28.30 28.68 38.49
1980 16.58 28.24 32.74 41.30 46.52 51.10 55.16 51.45 48.27 36.74 33.30 30.61 39.33
1981 32.81 29.11 35.87 39.20 45.16 49.70 52.97 55.61 46.87 35.94 31.17 24.03 a 39.87
1982 20.52 28.57 32.39 34.43 43.74 54.57 55.03 54.32 48.20 36.84 27.77 23.94 38.36
1983 29.71 32.86 38.42 37.83 47.48 50.23 54.55 56.45 44.57 35.87 36.73 17.52 40.19
1984 25.13 30.55 36.52 37.53 43.26 51.17 55.71 54.61 45.67 34.65 32.07 18.16 38.75
1985 23.90 21.04 31.32 39.83 47.39 52.57 58.87 52.19 45.60 37.26 20.03 18.03 37.34
1986 27.03 31.00 37.03 36.90 47.45 56.83 52.84 56.10 45.27 36.32 32.23 26.03 a 40.42
1987 24.10 28.43 34.48 41.40 47.19 51.97 55.94 54.19 48.13 36.48 32.57 25.29 40.01
1988 25.23 28.66 33.74 41.97 46.52 52.93 56.42 55.26 46.57 44.29 36.03 26.32 41.16
1989 29.45 19.29 34.35 42.90 46.35 55.73 54.81 55.42 47.13 38.35 34.50 27.84 40.51
1990 31.52 26.86 33.81 42.63 45.87 54.20 59.94 57.61 51.07 36.06 33.20 17.35 40.84
1991 19.19 33.05 i ----- z ----- z 45.68 50.83 57.97 58.68 48.23 37.39 33.70 28.97 42.29
1992 30.68 34.41 36.90 42.07 48.32 56.77 58.19 55.74 45.97 39.58 32.23 21.77 41.89
1993 18.65 23.50 31.35 38.83 50.71 52.30 53.42 53.58 45.90 38.97 23.13 29.42 38.31
1994 29.87 26.93 34.35 43.03 49.45 51.97 58.61 55.39 49.87 37.97 28.33 27.77 41.13
1995 25.81 31.61 32.29 38.60 48.13 53.47 57.87 52.10 50.37 37.06 33.17 27.81 40.69
1996 23.23 22.83 33.55 39.80 42.10 49.67 57.52 52.84 43.57 36.81 28.40 ----- z 39.12
1997 ----- z ----- z 36.29 38.13 49.42 51.83 56.48 58.74 50.57 39.26 33.53 26.23 44.05
1998 27.10 32.71 35.97 39.33 48.32 54.33 62.74 56.58 51.83 36.77 ----- z ----- z 44.57
1999 ----- z ----- z ----- z ----- z ----- z 52.47 56.13 55.55 ----- z 36.43 a 38.07 29.61 44.71
2000 26.68 29.24 33.90 41.53 47.87 53.67 57.42 54.58 48.77 38.97 27.50 27.81 40.66
2001 29.13 27.79 34.19 38.30 47.13 53.03 58.39 58.39 50.30 39.16 34.10 29.90 41.65
2002 30.19 28.11 31.65 39.23 46.39 54.50 59.58 54.48 48.03 34.71 28.60 30.97 40.54
2003 32.61 28.71 38.00 40.93 46.65 53.70 57.29 56.26 49.50 43.03 ----- z 27.71 43.13
2004 23.58 28.17 36.10 38.50 47.55 52.67 59.32 58.94 48.37 39.55 28.10 27.32 40.68
2005 24.65 23.61 34.87 39.57 50.16 50.13 56.52 54.65 45.83 39.77 ----- z 19.42 39.92
2006 29.61 ----- z ----- z ----- z 45.90 53.80 60.29 ----- z ----- z 36.74 30.77 23.39 40.07
2007 21.52 29.32 34.32 37.63 45.58 51.83 59.74 53.23 46.47 36.61 28.20 25.61 39.17
2008 21.00 29.48 30.45 32.28 a 47.83 a 48.93 a 56.32 54.19 45.23 35.42 32.27 17.68 37.59
2009 24.84 25.93 29.52 36.07 45.16 54.90 ----- z 56.94 47.37 34.06 28.37 15.32 36.22
2010 28.81 31.29 29.29 36.07 40.32 49.47 52.45 50.87 47.67 37.65 27.80 27.84 38.29
2011 26.00 23.36 31.42 32.13 39.48 46.97 49.61 50.65 45.50 38.81 24.83 20.65 35.78
2012 20.81 25.41 30.23 36.13 40.52 47.27 54.19 50.87 42.83 36.10 33.80 27.77 37.16
2013 22.68 24.25 29.52 34.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 22.00 z 25.48
Period of Record Statistics
MEAN 23.00 26.94 31.84 37.47 44.80 50.96 54.70 52.74 45.83 37.16 30.10 25.30 38.31
S.D. 6.13 4.15 2.63 2.51 2.62 2.65 2.70 2.87 2.62 2.28 3.59 4.30 1.62
SKEW -1.04 -1.12 0.14 -0.13 0.11 0.11 0.37 -0.11 -0.08 0.39 -0.44 -0.65 -0.14
MAX 35.39 34.89 38.42 43.03 51.52 57.70 62.74 58.94 51.83 44.29 38.13 33.13 41.89
MIN 3.97 11.07 26.13 32.00 38.52 44.43 48.58 44.00 39.87 32.52 20.03 12.32 33.74
NO YRS 116 113 114 113 115 117 116 116 116 119 115 116 107