RICHLAND, OREGON

Monthly Average Maximum Temperature (Degrees Fahrenheit)

(357160)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201110
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
1893 43.35 44.85 b 52.48 ----- z 75.77 a 83.93 93.81 98.58 76.50 66.57 q 53.63 46.94 66.98
1894 41.39 42.86 52.87 68.27 78.26 81.83 94.32 91.71 ----- z ----- z ----- z ----- z 68.94
1895 ----- z ----- z ----- z 66.47 73.48 82.27 88.32 90.93 a 72.50 70.48 57.00 38.16 71.07
1896 41.03 46.66 51.94 57.90 63.16 84.30 96.42 89.68 78.07 71.17 a 50.13 ----- z 66.40
1897 ----- z ----- z 44.28 b ----- z ----- z 82.07 b 85.84 92.35 75.73 66.10 b 47.70 38.39 66.56
1898 31.94 46.11 49.42 69.70 70.81 e 81.83 91.29 91.90 69.22 g ----- z ----- z ----- z 66.62
1899 40.58 38.43 51.58 63.37 68.45 80.70 91.74 79.81 81.87 59.35 54.53 35.16 62.13
1900 43.13 45.43 61.81 66.13 73.90 86.67 91.19 81.52 75.23 60.72 f 49.63 43.39 65.28
1901 42.29 44.00 52.30 a 57.00 69.77 74.00 89.87 92.00 71.47 72.74 57.00 y ----- z 66.54
1902 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1903 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1904 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1905 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 56.67 m 50.10 a 37.77 e 43.94
1906 35.04 d 40.61 47.74 66.63 69.68 75.39 g 95.35 90.17 a 82.83 ----- z 48.29 b 41.77 61.81
1907 38.81 e 56.62 d 54.43 a 64.03 73.52 74.87 87.24 b 86.35 80.77 76.23 53.40 41.61 65.66
1908 42.42 g 46.47 l 53.26 68.86 i 64.23 79.04 e 93.23 86.22 h 79.00 h 62.48 53.38 i 36.77 64.83
1909 42.84 47.12 b 54.42 g 62.50 71.04 h 81.36 e 86.88 w 88.69 b 78.13 67.68 50.67 31.37 a 61.15
1910 34.16 37.04 60.00 68.87 74.90 81.30 91.13 86.16 75.73 67.81 47.97 a 39.68 63.73
1911 39.23 a 39.59 a 59.29 62.20 65.77 79.90 90.17 h 87.15 k 73.86 i 63.74 46.43 38.50 a 54.96
1912 34.29 44.39 a 51.77 61.27 70.66 b 80.71 b 84.26 82.55 73.50 61.17 a 52.44 e 40.32 61.44
1913 35.43 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z 77.20 o 60.90 50.10 39.84 46.57
1914 ----- z 41.65 b 59.97 b 65.27 d 77.67 d 77.28 a ----- z 91.10 a ----- z ----- z ----- z 33.20 f 68.82
1915 37.83 a 50.54 62.74 70.96 c 70.10 81.57 88.23 97.23 78.75 b 71.74 46.57 39.45 66.31
1916 31.06 45.90 56.16 66.37 67.81 79.43 88.13 90.03 80.40 65.84 49.50 35.12 g 65.51
1917 30.45 39.07 43.29 60.83 71.77 79.90 97.10 93.26 84.83 69.39 56.57 48.97 64.62
1918 42.32 46.46 59.06 66.90 73.87 91.73 91.81 87.10 83.07 a 67.29 49.13 38.94 66.47
1919 37.60 f 43.89 56.03 66.80 74.71 85.20 93.77 93.78 d 79.13 62.23 48.73 31.68 66.91
1920 36.90 48.00 52.03 59.57 b 70.10 78.60 93.57 a 90.58 80.43 62.81 49.23 43.13 63.75
1921 ----- z ----- z 55.27 a 58.33 70.23 80.87 89.90 89.50 a 71.30 68.90 52.10 40.32 67.67
1922 27.52 37.21 47.35 ----- z ----- z 88.60 e 94.00 91.33 a 85.40 70.74 48.97 38.68 62.98
1923 ----- z ----- z ----- z ----- z 78.59 d ----- z ----- z ----- z ----- z ----- z ----- z ----- z 78.59
1924 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1925 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1926 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1927 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1928 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1929 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1930 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1931 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1932 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1933 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1934 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1935 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1936 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1937 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1938 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1939 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1940 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1941 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1942 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1943 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1944 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 48.47 39.90 44.18
1945 40.10 47.54 53.16 61.74 g 72.68 77.47 93.23 91.77 77.93 a 72.87 49.77 40.32 65.17
1946 42.23 43.54 b 58.90 70.90 76.48 80.10 90.74 92.06 78.10 61.79 b 48.53 44.71 65.67
1947 36.97 52.18 62.45 67.97 82.48 76.37 93.16 89.77 84.10 71.65 46.93 42.06 67.17
1948 ----- z ----- z ----- z ----- z ----- z ----- z 88.06 88.06 82.90 75.86 j 52.77 35.23 69.40
1949 22.97 ----- z 58.32 74.67 79.65 83.53 94.90 a 93.77 87.37 66.83 a 57.87 45.13 a 69.55
1950 ----- z 45.57 48.60 a 67.17 76.00 81.73 d 94.97 94.48 84.33 75.58 56.67 48.81 70.36
1951 ----- z ----- z 49.45 73.10 78.61 83.77 97.68 91.29 85.97 69.71 48.47 37.58 71.56
1952 36.16 39.59 42.42 71.63 80.94 n 83.30 95.94 94.83 a 87.20 80.68 57.07 49.87 67.15
1953 50.85 k 50.57 55.06 ----- z 76.35 h 82.97 99.29 95.87 91.63 72.19 63.09 g 41.68 73.66
1954 39.68 53.14 41.33 v 55.87 75.87 ----- z 97.35 89.68 ----- z 69.05 k 53.04 c 43.13 63.47
1955 36.71 42.39 48.90 58.66 a 73.23 91.47 97.52 100.55 92.00 81.03 44.68 b ----- z 69.74
1956 45.35 40.90 59.13 69.96 g 77.26 ----- z 97.68 94.39 88.46 b 67.35 45.36 e 40.39 65.63
1957 29.26 43.18 58.00 ----- z 79.84 88.77 97.81 97.65 93.53 60.83 a 42.37 k ----- z 72.10
1958 ----- z 56.75 55.48 67.57 87.61 87.23 98.84 100.35 83.57 ----- z 49.29 i ----- z 79.68
1959 45.74 47.93 56.45 71.77 73.71 92.17 f 96.35 95.88 e 83.23 67.13 52.17 45.52 66.90
1960 35.24 j 45.28 67.61 70.60 80.08 e 89.77 101.00 93.97 84.57 79.87 65.83 43.27 a 74.71
1961 41.71 59.14 58.26 70.27 79.55 95.43 b 97.66 b 97.68 77.87 66.81 52.82 m 39.23 71.24
1962 34.39 40.39 57.13 75.80 74.94 85.20 92.26 89.55 86.23 68.94 57.52 i 45.10 68.17
1963 34.71 57.93 64.94 ----- z 81.19 80.70 91.29 92.61 86.97 76.65 66.62 f 36.56 d 70.35
1964 39.61 42.03 56.45 70.80 78.33 a 81.70 93.06 90.03 80.80 76.48 54.20 42.26 67.15
1965 43.61 51.00 50.19 76.10 76.97 84.00 92.71 89.03 78.13 74.94 60.63 43.81 68.43
1966 45.35 47.57 63.45 72.07 81.61 84.30 92.55 94.55 90.70 75.58 g 63.27 44.10 70.87
1967 43.94 51.79 57.84 59.00 k 76.94 88.62 f 96.71 97.65 88.77 66.77 53.23 38.45 67.21
1968 41.68 53.66 60.87 61.30 76.84 86.44 e 95.00 f 84.61 81.17 66.58 49.50 41.00 63.97
1969 40.10 43.71 57.00 70.83 78.55 82.27 91.45 95.37 d 81.92 d 61.32 56.57 45.29 67.03
1970 43.45 52.61 55.03 59.17 76.29 87.70 92.19 96.19 77.69 a 68.55 53.60 38.55 66.75
1971 41.39 49.04 50.16 64.37 77.52 79.84 e 93.00 97.00 79.03 66.48 49.13 37.74 65.39
1972 40.16 44.31 59.90 64.47 79.68 85.73 91.23 93.74 76.53 67.48 49.20 30.96 g 68.40
1973 41.32 50.29 58.87 67.79 a 77.84 84.07 93.03 89.26 78.47 66.61 49.53 47.06 67.01
1974 36.81 48.00 53.52 62.57 71.13 90.70 92.03 90.87 85.27 67.58 52.53 39.74 65.90
1975 36.45 43.39 52.48 56.20 72.84 79.53 93.48 86.94 85.80 62.87 a 50.73 37.68 63.20
1976 38.61 44.72 51.90 65.47 75.68 79.07 93.26 86.29 83.90 73.03 59.53 43.65 66.26
1977 32.94 n ----- z ----- z 75.07 73.23 89.17 91.00 91.10 77.34 a 68.10 49.50 44.94 73.27
1978 45.32 48.68 63.10 65.50 69.55 82.60 90.68 87.77 76.93 73.32 45.77 35.68 65.41
1979 26.84 43.50 60.00 64.70 76.23 85.00 94.68 90.52 87.60 72.26 48.75 b 45.06 66.26
1980 41.10 49.62 55.87 69.57 73.06 78.77 91.48 ----- z ----- z ----- z ----- z ----- z 65.64
1981 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1982 ----- z ----- z 58.84 63.60 76.55 85.50 92.26 92.52 82.77 72.52 ----- z 42.23 74.09
1983 42.45 b 48.29 57.81 60.27 72.81 81.50 64.42 90.06 80.77 71.16 51.53 36.03 63.09
1984 32.87 38.31 50.87 71.10 ----- z ----- z 93.42 95.26 80.96 b 61.93 d 48.07 ----- z 63.64
1985 ----- z 37.21 46.48 79.03 80.32 ----- z 97.81 80.19 79.00 a ----- z ----- z ----- z 71.44
1986 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 94.87 72.23 68.77 49.97 39.87 a 65.14
1987 35.68 49.89 56.19 73.17 78.00 85.30 c 88.71 89.70 a 86.33 73.77 53.43 41.42 67.63
1988 35.23 47.33 b 57.39 65.87 74.65 83.27 92.45 91.42 80.27 77.29 48.70 35.06 65.74
1989 30.58 28.29 52.97 66.30 69.29 82.93 93.39 85.39 79.43 63.84 50.90 41.52 62.07
1990 43.55 43.79 56.84 69.43 68.13 79.70 93.77 88.97 87.83 61.77 52.63 29.97 64.70
1991 33.29 50.46 52.87 60.77 67.97 75.67 92.52 94.03 84.37 67.61 45.10 40.35 63.75
1992 41.06 52.17 64.06 66.93 81.29 85.10 84.81 90.71 77.63 69.26 44.60 35.29 66.08
1993 31.19 35.29 49.19 59.63 77.68 74.90 77.68 86.50 k ----- z 63.47 l 44.00 41.06 54.51
1994 40.71 42.29 60.45 66.43 74.10 80.57 92.90 93.19 85.10 65.10 40.87 38.97 65.06
1995 41.35 52.50 54.35 61.33 71.19 77.07 88.16 86.16 83.33 61.65 51.77 42.55 64.28
1996 39.55 44.76 57.26 63.00 68.45 82.83 94.10 91.71 77.70 65.23 51.63 43.10 64.94
1997 38.74 46.00 57.87 ----- z ----- z 82.33 87.10 ----- z ----- z 65.26 52.93 ----- z 61.46
1998 ----- z 48.11 55.13 61.10 71.10 77.43 96.16 ----- z ----- z ----- z ----- z ----- z 68.17
1999 43.90 42.50 54.61 61.17 69.29 ----- z 89.90 90.10 80.30 ----- z 55.90 ----- z 65.30
2000 39.58 47.62 54.65 73.17 l 74.00 z 86.10 93.32 94.35 81.03 67.16 44.37 39.77 64.80
2001 33.13 ----- z 59.10 63.90 77.23 86.87 90.19 94.35 ----- z 60.10 46.50 ----- z 67.93
2002 35.84 42.39 ----- z ----- z 75.35 84.37 ----- z ----- z ----- z 65.42 50.63 43.19 56.74
2003 44.39 45.96 54.52 60.13 ----- z 89.37 99.26 92.94 80.13 75.06 46.83 42.39 66.45
2004 33.68 41.90 h 60.23 66.10 70.52 81.90 93.16 88.61 76.17 65.26 48.10 41.29 65.91
2005 38.19 47.71 57.13 60.63 69.45 76.03 91.42 91.65 77.37 63.81 45.53 34.74 62.81
2006 40.97 43.57 49.23 61.10 73.29 82.57 97.97 88.84 79.07 65.06 51.03 37.68 64.20
2007 36.74 46.96 58.71 63.67 75.03 83.00 97.13 89.06 78.37 61.81 48.87 38.97 64.86
2008 34.13 43.00 49.84 56.97 70.87 78.73 90.32 88.68 78.57 65.52 51.43 37.42 62.12
2009 33.87 42.79 50.52 61.00 71.61 77.20 91.35 87.94 83.93 56.39 48.73 34.58 61.66
2010 41.06 44.57 54.94 58.53 63.03 75.00 88.74 86.71 78.93 66.81 47.77 37.97 62.01
2011 35.16 41.75 49.68 54.73 64.16 74.63 87.97 91.74 85.60 63.81 ----- z ----- z 64.92
Period of Record Statistics
MEAN 38.11 45.69 55.21 65.36 74.07 82.43 92.34 91.20 81.38 67.95 50.74 40.39 64.88
S.D. 4.86 5.34 5.00 5.38 4.75 4.36 4.89 4.11 4.81 5.27 4.37 3.97 1.87
SKEW -0.68 -0.05 -0.19 0.23 -0.11 0.36 -2.42 -0.30 0.22 0.43 0.90 -0.05 -0.28
MAX 45.74 59.14 67.61 79.03 87.61 95.43 101.00 100.55 93.53 81.03 65.83 49.87 68.43
MIN 22.97 28.29 42.42 54.73 63.03 74.00 64.42 79.81 71.30 56.39 40.87 29.97 61.44
NO YRS 75 79 84 76 81 81 85 84 79 77 78 76 37