RIVERSIDE, OREGON

Monthly Average Temperature (Degrees Fahrenheit)

(357208)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201210
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
1897 ----- z ----- z ----- z ----- z ----- z 61.35 g 66.84 72.13 58.17 d 44.71 37.42 33.81 52.18
1898 19.81 35.93 36.19 51.14 a 52.40 g 62.03 69.68 73.15 60.97 m 44.60 34.00 t 23.19 46.19
1899 32.66 f 31.21 38.69 43.55 a 49.32 60.56 n 68.37 58.75 a 53.97 37.69 35.02 12.43 a 42.90
1900 ----- z 36.43 f 45.50 48.19 a 55.37 d 66.47 67.58 a 64.33 a 57.41 h 45.75 m 35.31 l 35.66 i 57.91
1901 30.90 j 31.85 a 39.98 45.60 59.31 59.23 b 73.54 d 72.79 55.32 b 53.15 h 38.80 c 30.98 50.74
1902 24.38 c 32.27 o 37.86 q 46.80 b 52.80 i 65.71 m 67.08 68.24 62.25 x 50.16 i 38.50 27.38 n 49.00
1903 29.96 e 19.00 z ----- z ----- z 54.52 j 67.69 n 66.29 q 70.46 q 41.25 z 52.25 s 44.25 p 32.94 f 29.96
1904 35.05 a 41.00 z 40.11 c 51.86 b 56.00 64.57 a 71.27 72.05 60.38 50.07 a 40.00 27.57 b 51.72
1905 28.57 c 25.29 44.58 47.27 51.19 61.28 a 74.31 72.27 61.43 45.79 s 33.17 22.33 b 47.43
1906 24.29 q 30.79 31.98 49.88 a 54.89 m 58.45 a ----- z 70.58 f 58.77 d 42.65 r 30.50 m 34.24 n 45.97
1907 28.21 e 40.00 h 41.42 f 46.44 e 54.17 d 60.09 m 68.11 i ----- z 57.86 i 54.22 h 37.90 31.53 n 41.68
1908 32.27 35.47 39.11 d 51.07 b 50.78 b 60.79 d ----- z ----- z 61.24 a 52.55 37.79 d 20.20 c 44.13
1909 29.50 z ----- z ----- z ----- z 48.45 k 62.82 e 66.57 a 73.64 c ----- z 47.31 e 37.13 k ----- z 62.58
1910 ----- z ----- z ----- z 54.86 h 58.66 65.97 76.16 67.17 e 56.34 b 54.09 d 36.75 b 30.33 b 55.68
1911 24.83 b 20.52 38.50 40.83 46.48 65.17 70.86 c ----- z 52.92 48.48 a 34.95 25.76 42.66
1912 27.35 a 34.76 b 39.45 46.16 b 51.25 a 61.62 77.04 q 65.13 51.85 44.26 35.38 b 25.66 43.90
1913 25.76 30.86 36.81 45.90 59.68 65.57 a 71.06 78.38 w 62.82 45.55 39.52 22.68 46.02
1914 29.53 a 33.54 43.60 48.60 58.82 60.83 72.60 71.71 58.13 51.08 40.33 o ----- z 52.84
1915 20.97 37.21 46.08 54.68 50.50 61.15 74.50 75.98 61.56 d 50.00 36.98 30.48 a 50.01
1916 19.95 b 35.86 43.07 b 50.48 49.29 58.02 69.62 g 65.98 b 59.50 46.68 32.95 a 26.34 44.37
1917 22.53 29.59 31.52 b ----- z 52.35 h 68.57 o 77.02 71.19 d 61.02 49.89 40.87 37.50 m 47.95
1918 ----- z 31.20 a 42.18 40.30 o 54.18 71.52 72.87 a 65.53 62.05 51.00 35.12 23.37 50.90
1919 28.45 33.59 41.35 50.27 54.26 62.57 73.48 71.02 59.55 a 40.42 35.53 o 18.61 48.51
1920 26.67 a 34.66 40.08 43.33 53.34 60.88 72.11 70.23 a 61.57 43.61 35.40 a 31.18 47.75
1921 29.11 29.29 42.61 42.97 56.08 67.58 68.97 68.24 49.05 49.77 38.80 25.15 47.30
1922 7.65 26.05 r 32.50 z 43.44 n 50.34 64.78 72.50 70.47 62.18 50.45 33.12 26.11 48.62
1923 31.00 28.00 38.85 46.32 54.50 57.65 70.45 68.46 g 61.15 46.08 37.75 22.48 f 47.18
1924 23.39 38.84 35.23 45.97 56.63 59.21 a 68.23 65.79 b 56.77 46.31 37.72 g 16.45 i 49.64
1925 30.27 a 37.55 39.32 49.78 55.52 63.45 71.94 60.82 a 55.39 b 45.13 ----- z ----- z 50.92
1926 ----- z ----- z ----- z 49.59 c 52.54 d 64.79 a 73.86 b 69.31 51.37 47.72 a 40.67 c 29.16 l 56.23
1927 29.78 b 35.28 e 40.00 44.07 a 50.87 a 64.40 a 70.16 67.90 a 57.40 48.21 b 44.21 f 25.84 c 48.54
1928 28.31 29.50 43.19 46.92 d 60.56 60.71 a 73.79 c 65.86 x 58.91 h 57.70 u 36.11 b 18.12 a 44.13
1929 22.44 22.16 41.82 42.33 53.93 b 62.44 c 73.24 73.72 f 54.87 50.77 31.72 32.81 44.41
1930 12.81 39.29 43.06 53.95 52.56 61.83 74.79 70.97 59.80 45.85 31.45 21.63 47.33
1931 26.97 33.12 42.32 43.43 i 59.85 d 64.62 74.71 70.77 58.08 46.35 32.67 20.79 48.21
1932 24.11 24.36 40.06 47.83 54.89 63.24 a 68.29 65.98 59.88 48.05 38.32 21.82 46.40
1933 26.15 19.11 38.29 45.02 49.06 66.75 ----- z 68.68 58.88 52.44 37.77 39.47 45.60
1934 37.21 ----- z ----- z 54.13 60.66 62.67 73.00 73.06 57.37 50.97 42.78 28.35 54.02
1935 26.37 a 30.23 36.82 45.40 55.47 66.09 a 70.65 70.00 59.93 44.06 29.93 23.60 a 46.55
1936 27.05 28.29 36.05 51.10 60.45 66.25 75.24 71.15 57.88 50.40 31.29 a 28.02 48.60
1937 9.21 b 29.11 41.78 k 47.86 i 56.02 e ----- z ----- z 71.48 a 59.08 j ----- z 41.28 g 36.60 40.48
1938 33.68 35.62 38.93 b 49.19 f 53.74 64.10 e 71.11 64.90 j 64.73 49.34 31.07 31.30 a 47.36
1939 30.84 30.41 a 39.30 h 51.25 53.94 f 57.28 72.55 70.48 60.77 45.62 a ----- z 33.42 50.29
1940 28.89 37.56 l 43.48 47.50 56.44 68.58 71.44 72.52 a 57.13 48.73 31.84 a 27.97 50.41
1941 29.15 d 33.90 h 40.76 42.85 57.29 57.70 ----- z ----- z 49.45 45.62 k 34.88 28.40 k 44.58
1942 20.44 27.77 35.32 48.07 49.50 ----- z 71.03 a 68.71 57.65 d 49.68 38.24 g 33.69 46.19
1943 25.94 24.00 y 39.90 j ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 25.94
1944 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1945 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1946 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1947 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1948 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1949 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1950 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1951 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1952 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1953 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1954 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1955 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1956 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1957 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1958 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1959 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1960 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1961 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1962 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1963 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1964 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1965 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1966 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 48.14 f 42.40 e 30.93 c 36.66
1967 37.33 b 39.09 40.53 41.78 a 55.68 64.02 c 74.69 b 74.85 a 66.60 49.85 e 40.12 a 27.45 51.00
1968 29.84 40.48 43.98 44.91 a 56.25 a 65.82 74.18 67.42 a 60.90 47.68 38.79 a 31.81 50.17
1969 29.23 28.80 a 38.02 49.12 59.74 64.03 71.85 71.24 63.08 44.85 37.85 33.18 49.25
1970 33.97 39.07 a 40.05 41.88 b 55.69 65.75 71.77 70.39 55.70 45.82 39.90 e 28.68 49.06
1971 34.26 36.36 37.11 46.35 55.48 60.60 70.32 73.92 55.93 b 47.05 37.07 30.12 a 48.71
1972 29.29 34.52 44.40 45.98 a 57.27 65.68 70.66 70.82 c 56.13 49.35 38.64 a 23.40 48.85
1973 27.92 36.88 40.76 45.78 57.00 64.30 72.08 69.77 e 59.92 49.05 38.80 35.61 49.82
1974 28.43 a 36.48 40.68 a 45.98 52.96 c 68.17 a 69.89 68.24 60.85 48.68 38.62 31.87 49.24
1975 28.74 34.82 37.90 40.92 53.06 61.10 73.13 65.24 60.65 50.62 a 36.13 32.74 47.92
1976 32.27 32.71 36.29 45.37 56.87 a 60.17 70.88 b 64.27 61.85 47.82 39.93 27.31 b 47.98
1977 19.68 35.46 38.48 b 51.50 50.98 69.67 a 70.71 b 72.11 h 60.02 49.87 37.93 b 36.26 47.32
1978 32.35 37.09 45.74 46.53 51.74 62.07 69.97 67.32 57.95 49.60 33.97 24.50 48.24
1979 14.08 34.73 41.06 46.87 55.66 64.23 72.52 69.45 64.25 52.10 36.06 d 32.75 c 48.65
1980 28.73 37.52 39.82 49.48 54.87 59.97 71.18 66.79 61.42 48.53 38.12 30.90 48.94
1981 32.89 34.25 b 41.60 49.15 53.52 62.17 68.95 72.34 60.65 46.35 40.13 34.00 49.67
1982 24.34 31.66 39.94 43.30 53.13 62.80 68.98 69.60 57.22 47.98 32.68 27.90 46.63
1983 34.58 38.84 42.60 43.60 54.24 60.32 68.00 71.58 58.32 49.65 39.90 25.39 48.92
1984 22.21 30.88 41.84 44.97 55.16 59.32 72.16 72.16 58.40 45.95 ----- z 24.85 47.99
1985 24.10 27.95 36.81 50.92 56.63 65.77 76.92 67.03 53.67 46.27 a 29.17 10.31 45.46
1986 28.31 38.93 46.21 47.38 56.35 69.65 67.61 72.50 55.50 48.97 39.03 26.37 49.73
1987 21.27 36.25 42.31 53.18 58.63 66.90 67.71 67.05 62.03 51.52 37.97 a 29.75 a 49.55
1988 24.23 a 36.29 42.40 49.72 57.02 67.62 72.47 68.16 59.08 55.89 39.05 26.13 49.84
1989 25.98 24.70 42.60 51.23 54.37 65.13 73.03 66.81 59.82 48.27 37.30 28.02 48.11
1990 33.61 32.98 43.39 54.45 55.13 66.43 75.71 71.73 67.27 48.85 38.08 18.66 50.52
1991 25.45 39.55 41.61 47.77 54.69 61.35 73.97 73.68 k ----- z ----- z ----- z ----- z 49.20
1992 ----- z ----- z ----- z ----- z 59.29 65.48 66.94 67.45 b 59.33 50.48 34.00 25.35 53.54
1993 20.39 24.95 38.97 45.60 58.23 58.45 60.10 62.11 57.70 49.74 29.67 30.82 44.73
1994 34.08 30.73 43.68 48.80 57.31 62.90 71.76 69.45 60.33 46.53 30.87 26.58 48.58
1995 34.03 40.23 39.73 44.85 53.39 59.72 68.66 64.68 60.40 45.68 42.05 31.26 48.72
1996 31.42 33.10 41.81 47.63 52.02 60.95 70.52 67.69 56.30 47.61 38.22 35.16 48.54
1997 31.31 32.36 41.94 44.42 57.16 60.43 66.13 67.18 59.53 45.95 38.78 29.60 47.90
1998 36.06 35.71 40.71 45.60 52.58 58.80 72.13 ----- z ----- z ----- z ----- z ----- z 48.80
1999 32.38 c 32.61 i 39.45 a 42.55 a 50.42 a 60.84 b 67.53 b 66.69 55.46 b ----- z 40.07 29.46 c 48.49
2000 31.94 g 37.17 e 40.41 c 51.30 c 55.71 b 63.83 a 68.90 a 67.58 a 57.12 e 47.05 a 28.81 l 28.46 h 54.34
2001 22.67 j 26.91 l 43.11 d 45.46 d 56.50 b 62.07 b 68.06 70.44 61.58 d 49.88 c 37.83 a 29.50 g 54.99
2002 31.16 32.00 38.87 47.95 54.55 a 65.56 d 73.47 a 63.73 e 58.42 44.59 c 37.68 k 34.42 49.52
2003 37.06 32.93 43.92 45.45 54.98 e 63.90 73.46 e 69.48 e 60.28 55.53 o 33.78 l 34.94 51.64
2004 26.94 31.91 45.30 i 48.78 54.25 c 63.62 70.65 67.92 56.92 d 47.46 h 35.60 j 34.38 f 52.62
2005 31.26 34.41 e 42.64 j 47.00 55.45 58.52 70.55 68.84 56.08 e 49.71 j 36.07 h 24.26 49.60
2006 34.64 i ----- z 37.27 e 47.85 55.81 64.65 74.50 66.10 57.87 g 44.93 q 38.08 q 24.32 l 57.70
2007 26.85 d 36.57 e 45.59 h 47.17 g 56.61 d 65.05 76.19 68.24 58.65 g ----- z 35.00 k 29.40 k 54.92
2008 21.95 l 34.48 h 39.08 f 42.08 54.79 61.03 70.10 67.84 57.53 ----- z 38.32 h 26.74 j 58.90
2009 31.91 h 30.23 m 40.70 h 46.06 f 57.52 g 62.70 70.45 67.82 62.08 e 45.08 m 34.54 g 26.84 i 65.76
2010 34.57 i 36.35 e 40.19 e 43.47 m 48.96 h 61.83 68.68 66.08 59.80 g 50.30 z 32.70 t 28.03 50.19
2011 29.43 h 33.20 e 40.32 f 44.50 w 47.57 q 56.41 n 68.30 h 70.85 g 62.84 n 45.19 w 33.47 k 28.29 n 33.20
2012 32.22 h 34.53 j 41.10 k 48.28 n 53.44 e 60.90 e 72.90 f 69.14 f 62.12 z 38.00 y ----- z ----- z 57.17
Period of Record Statistics
MEAN 27.48 33.03 40.43 47.24 54.87 63.10 71.23 68.89 58.74 48.06 36.70 27.80 48.49
S.D. 5.95 4.69 3.00 3.33 2.99 3.07 2.90 3.20 3.40 2.96 3.32 5.52 1.40
SKEW -1.03 -0.81 -0.49 0.24 -0.25 0.25 -0.58 -0.48 -0.40 -0.49 -0.54 -0.65 -0.74
MAX 37.33 40.48 46.21 54.68 60.66 71.52 77.02 75.98 67.27 55.89 42.78 39.47 51.00
MIN 7.65 19.11 31.52 40.83 46.48 57.28 60.10 58.75 49.05 37.69 29.17 10.31 44.73
NO YRS 75 72 73 76 81 83 81 76 77 69 65 69 34