RIVERSIDE, OREGON

Monthly Extreme Maximum 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 94.00 g 101.00 104.00 92.00 c 79.00 72.00 53.00 104.00
1898 42.00 63.00 68.00 89.00 a 86.00 g 99.00 106.00 106.00 99.00 76.00 50.00 t 50.00 106.00
1899 53.00 e 63.00 61.00 81.00 81.00 95.00 n 106.00 97.00 94.00 79.00 62.00 54.00 a 106.00
1900 53.00 b 56.00 f 71.00 80.00 87.00 c 100.00 104.00 96.00 a 85.00 h 77.00 m 67.00 l 58.00 i 104.00
1901 52.00 i 61.00 65.00 77.00 95.00 94.00 a 108.00 d 105.00 98.00 a 81.00 h 64.00 b 52.00 108.00
1902 49.00 c 63.00 k 56.00 i 73.00 b 78.00 h 98.00 m 105.00 100.00 97.00 x 87.00 h 70.00 52.00 n 105.00
1903 60.00 d 48.00 z ----- z ----- z 95.00 j 93.00 n 97.00 q 100.00 k 50.00 z 86.00 r 58.00 o 53.00 b 100.00
1904 59.00 56.00 b 60.00 a 83.00 b 98.00 104.00 103.00 104.00 99.00 86.00 70.00 55.00 104.00
1905 50.00 c 54.00 70.00 81.00 90.00 93.00 a 111.00 108.00 95.00 81.00 s 82.00 49.00 b 111.00
1906 50.00 q 51.00 65.00 89.00 a 93.00 h 95.00 a ----- z 107.00 e 96.00 b 82.00 r 68.00 i 55.00 e 107.00
1907 56.00 a 60.00 e 70.00 c 80.00 b 95.00 c 96.00 k 107.00 g ----- z 98.00 e 82.00 d 65.00 58.00 g 107.00
1908 56.00 71.00 72.00 92.00 b 86.00 b 100.00 c ----- z ----- z 99.00 a 82.00 81.00 d 35.00 100.00
1909 37.00 z ----- z ----- z ----- z 82.00 j 95.00 c 99.00 102.00 ----- z 75.00 c 65.00 j ----- z 102.00
1910 ----- z ----- z ----- z 90.00 f 102.00 102.00 105.00 101.00 d 85.00 a 93.00 70.00 a 43.00 b 105.00
1911 56.00 a 45.00 68.00 80.00 75.00 98.00 103.00 c ----- z 91.00 85.00 a 65.00 45.00 103.00
1912 48.00 62.00 a 70.00 85.00 b 78.00 98.00 105.00 q 100.00 86.00 80.00 58.00 a 50.00 105.00
1913 50.00 61.00 70.00 80.00 97.00 100.00 a 101.00 101.00 u 99.00 80.00 60.00 48.00 101.00
1914 47.00 60.00 76.00 78.00 88.00 100.00 104.00 103.00 92.00 88.00 70.00 o ----- z 104.00
1915 55.00 53.00 76.00 83.00 80.00 99.00 102.00 100.00 97.00 d 81.00 72.00 55.00 a 102.00
1916 48.00 53.00 76.00 a 84.00 80.00 98.00 100.00 g 100.00 b 96.00 75.00 69.00 52.00 100.00
1917 50.00 52.00 61.00 b ----- z 84.00 h 98.00 o 101.00 101.00 d 95.00 90.00 70.00 68.00 101.00
1918 65.00 51.00 75.00 68.00 o 88.00 100.00 102.00 a 98.00 93.00 82.00 70.00 52.00 102.00
1919 62.00 53.00 71.00 80.00 95.00 99.00 106.00 101.00 94.00 78.00 68.00 o 48.00 106.00
1920 60.00 60.00 62.00 73.00 86.00 95.00 101.00 108.00 98.00 85.00 57.00 61.00 108.00
1921 62.00 52.00 68.00 77.00 85.00 98.00 100.00 99.00 90.00 87.00 74.00 60.00 100.00
1922 37.00 45.00 r 45.00 z 75.00 n 88.00 98.00 102.00 98.00 98.00 82.00 55.00 48.00 102.00
1923 60.00 58.00 74.00 79.00 88.00 94.00 104.00 101.00 g 100.00 79.00 60.00 42.00 f 104.00
1924 45.00 58.00 58.00 75.00 87.00 88.00 a 99.00 100.00 a 90.00 75.00 65.00 g 48.00 i 100.00
1925 50.00 53.00 70.00 80.00 85.00 98.00 106.00 95.00 a 85.00 b 70.00 ----- z ----- z 106.00
1926 ----- z ----- z ----- z 81.00 b 80.00 d 98.00 100.00 b 98.00 83.00 81.00 a 70.00 a 53.00 a 100.00
1927 50.00 55.00 e 68.00 87.00 a 91.00 a 92.00 101.00 98.00 a 90.00 85.00 b 70.00 a 62.00 c 101.00
1928 50.00 47.00 75.00 80.00 b 94.00 94.00 a 108.00 103.00 i 97.00 81.00 t 60.00 b 45.00 108.00
1929 43.00 47.00 70.00 75.00 93.00 b 96.00 a 104.00 105.00 f 95.00 85.00 68.00 65.00 105.00
1930 50.00 67.00 72.00 82.00 90.00 95.00 105.00 98.00 93.00 75.00 63.00 45.00 105.00
1931 45.00 55.00 69.00 73.00 i 94.00 d 95.00 110.00 102.00 99.00 85.00 73.00 45.00 110.00
1932 55.00 55.00 70.00 80.00 90.00 100.00 99.00 100.00 96.00 90.00 64.00 57.00 100.00
1933 55.00 46.00 61.00 80.00 85.00 98.00 ----- z 106.00 91.00 90.00 60.00 62.00 106.00
1934 59.00 ----- z ----- z 89.00 91.00 95.00 110.00 101.00 99.00 87.00 70.00 50.00 110.00
1935 47.00 50.00 73.00 72.00 88.00 95.00 a 103.00 106.00 95.00 85.00 52.00 45.00 a 106.00
1936 57.00 54.00 70.00 90.00 90.00 104.00 109.00 101.00 94.00 88.00 78.00 60.00 109.00
1937 49.00 a 52.00 65.00 80.00 91.00 e ----- z 105.00 101.00 100.00 e ----- z 60.00 g 59.00 105.00
1938 55.00 55.00 60.00 83.00 e 90.00 95.00 e 102.00 96.00 j 97.00 76.00 57.00 60.00 a 102.00
1939 50.00 52.00 a 75.00 h 90.00 90.00 f 99.00 106.00 102.00 93.00 75.00 a 63.00 64.00 106.00
1940 45.00 60.00 l 71.00 80.00 90.00 106.00 102.00 104.00 a 85.00 80.00 60.00 50.00 106.00
1941 45.00 d 50.00 h 68.00 71.00 88.00 88.00 100.00 100.00 q 72.00 75.00 k 62.00 51.00 k 100.00
1942 47.00 45.00 70.00 80.00 85.00 92.00 b 104.00 a 103.00 94.00 d 86.00 60.00 g 51.00 104.00
1943 52.00 40.00 y 72.00 j ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 72.00
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 80.00 f 68.00 d 51.00 b 80.00
1967 56.00 a 62.00 67.00 61.00 a 92.00 98.00 b 108.00 b 104.00 a 99.00 78.00 d 67.00 a 61.00 108.00
1968 49.00 67.00 72.00 86.00 a 85.00 a 103.00 105.00 96.00 a 92.00 81.00 58.00 a 61.00 105.00
1969 56.00 49.00 a 73.00 80.00 88.00 96.00 99.00 104.00 97.00 75.00 68.00 57.00 104.00
1970 55.00 63.00 a 63.00 74.00 b 90.00 99.00 98.00 96.00 85.00 85.00 64.00 e 49.00 99.00
1971 64.00 66.00 68.00 78.00 83.00 93.00 98.00 99.00 90.00 a 83.00 65.00 51.00 a 99.00
1972 52.00 63.00 76.00 76.00 a 91.00 94.00 96.00 100.00 c 88.00 78.00 59.00 a 65.00 100.00
1973 54.00 57.00 65.00 78.00 89.00 94.00 98.00 94.00 d 92.00 81.00 64.00 53.00 98.00
1974 60.00 a 56.00 65.00 a 78.00 83.00 b 100.00 a 96.00 96.00 89.00 82.00 64.00 54.00 100.00
1975 59.00 53.00 59.00 65.00 85.00 87.00 100.00 94.00 92.00 86.00 a 69.00 62.00 100.00
1976 56.00 56.00 66.00 73.00 94.00 a 97.00 96.00 b 91.00 95.00 80.00 67.00 55.00 b 97.00
1977 45.00 63.00 70.00 a 90.00 95.00 98.00 a 101.00 b 105.00 g 94.00 80.00 64.00 b 59.00 105.00
1978 48.00 55.00 78.00 75.00 82.00 91.00 102.00 100.00 94.00 82.00 70.00 60.00 102.00
1979 53.00 54.00 66.00 74.00 90.00 98.00 105.00 99.00 96.00 90.00 58.00 d 57.00 b 105.00
1980 54.00 60.00 63.00 80.00 89.00 90.00 103.00 95.00 95.00 89.00 66.00 58.00 103.00
1981 51.00 57.00 b 66.00 87.00 85.00 97.00 104.00 100.00 97.00 74.00 65.00 58.00 104.00
1982 45.00 64.00 61.00 77.00 88.00 93.00 100.00 99.00 92.00 76.00 58.00 53.00 100.00
1983 55.00 59.00 67.00 67.00 95.00 88.00 104.00 104.00 90.00 78.00 66.00 50.00 104.00
1984 50.00 53.00 67.00 82.00 95.00 100.00 99.00 102.00 92.00 84.00 ----- z 44.00 102.00
1985 47.00 55.00 63.00 85.00 86.00 101.00 106.00 95.00 84.00 77.00 a 67.00 45.00 106.00
1986 50.00 68.00 75.00 85.00 97.00 103.00 98.00 100.00 93.00 78.00 65.00 45.00 103.00
1987 45.00 55.00 70.00 90.00 90.00 99.00 102.00 98.00 100.00 87.00 64.00 57.00 a 102.00
1988 52.00 63.00 76.00 83.00 93.00 101.00 103.00 99.00 98.00 87.00 74.00 54.00 103.00
1989 53.00 50.00 68.00 82.00 85.00 95.00 103.00 96.00 89.00 83.00 71.00 52.00 103.00
1990 53.00 62.00 77.00 85.00 91.00 101.00 105.00 108.00 98.00 85.00 67.00 54.00 108.00
1991 56.00 64.00 68.00 72.00 81.00 93.00 102.00 100.00 j ----- z ----- z ----- z ----- z 102.00
1992 ----- z ----- z ----- z ----- z 92.00 100.00 102.00 100.00 94.00 88.00 57.00 51.00 102.00
1993 46.00 45.00 67.00 69.00 92.00 93.00 93.00 95.00 96.00 85.00 65.00 58.00 96.00
1994 57.00 57.00 76.00 85.00 89.00 96.00 101.00 98.00 91.00 80.00 63.00 53.00 101.00
1995 60.00 71.00 68.00 74.00 84.00 93.00 99.00 97.00 96.00 78.00 69.00 60.00 99.00
1996 54.00 66.00 67.00 82.00 84.00 95.00 101.00 103.00 94.00 93.00 63.00 56.00 103.00
1997 61.00 61.00 77.00 79.00 89.00 90.00 96.00 98.00 92.00 85.00 69.00 54.00 98.00
1998 55.00 54.00 69.00 83.00 83.00 91.00 104.00 ----- z ----- z ----- z ----- z ----- z 104.00
1999 58.00 58.00 71.00 79.00 92.00 96.00 100.00 98.00 90.00 ----- z 75.00 50.00 100.00
2000 50.00 55.00 71.00 80.00 88.00 95.00 103.00 100.00 96.00 81.00 52.00 l 45.00 103.00
2001 40.00 j 51.00 j 74.00 82.00 95.00 100.00 106.00 101.00 92.00 89.00 66.00 50.00 106.00
2002 49.00 51.00 75.00 75.00 90.00 a 98.00 d 108.00 a 100.00 e 93.00 81.00 c 62.00 k 60.00 108.00
2003 61.00 59.00 77.00 75.00 98.00 e 97.00 108.00 e 100.00 e 96.00 87.00 o 67.00 l 57.00 108.00
2004 48.00 53.00 78.00 i 81.00 86.00 c 98.00 100.00 102.00 90.00 d 85.00 h 62.00 i 60.00 f 102.00
2005 53.00 66.00 e 78.00 j 80.00 86.00 94.00 104.00 103.00 94.00 e 86.00 j 71.00 h 48.00 104.00
2006 52.00 i ----- z 65.00 e 82.00 95.00 100.00 105.00 98.00 97.00 g 82.00 p 63.00 q 48.00 l 105.00
2007 53.00 58.00 e 78.00 g 85.00 g 90.00 d 96.00 106.00 100.00 96.00 g 71.00 s 67.00 i 59.00 k 106.00
2008 48.00 l 58.00 h 63.00 f 83.00 95.00 101.00 102.00 99.00 92.00 ----- z 65.00 g 53.00 j 102.00
2009 55.00 h 53.00 m 70.00 h 88.00 f 95.00 g 94.00 103.00 104.00 96.00 e 73.00 m 68.00 g 47.00 i 104.00
2010 48.00 i 52.00 e 69.00 e 82.00 m 75.00 h 99.00 102.00 100.00 95.00 g 75.00 z 70.00 s 49.00 102.00
2011 52.00 g 60.00 e 69.00 f 67.00 w 82.00 q 80.00 n 101.00 g 99.00 g 94.00 n 73.00 w 57.00 k 56.00 n 101.00
2012 53.00 h 60.00 j 69.00 k 88.00 n 88.00 e 96.00 e 102.00 e 101.00 f 93.00 z 73.00 y ----- z ----- z 102.00
Period of Record Statistics
MEAN 52.53 56.93 68.99 79.88 88.91 96.64 102.65 100.23 93.40 82.23 65.84 53.53 102.25
S.D. 5.58 6.13 4.93 5.89 5.05 3.87 3.51 3.52 4.74 5.01 5.93 6.20 3.24
SKEW -0.03 0.16 -0.18 -0.47 -0.14 -0.27 -0.04 0.15 -1.42 0.03 0.27 -0.11 0.18
MAX 65.00 71.00 78.00 92.00 102.00 106.00 111.00 108.00 100.00 93.00 82.00 68.00 109.00
MIN 37.00 45.00 58.00 61.00 75.00 87.00 93.00 91.00 72.00 70.00 52.00 35.00 96.00
NO YRS 79 75 75 78 81 84 84 77 81 70 67 75 32