PROSSER st,

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(456768)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1925 ----- z ----- z ----- z ----- z ----- z ----- z 99.00 ----- z ----- z ----- z ----- z ----- z 99.00
1926 ----- z 62.00 c 71.00 a 90.00 a 85.00 103.00 d 104.00 e 99.00 86.00 a 73.00 e 63.00 a 56.00 104.00
1927 50.00 h 59.00 a 67.00 86.00 88.00 90.00 103.00 99.00 85.00 e 76.00 e 71.00 h 62.00 g 103.00
1928 ----- z ----- z ----- z 76.00 d 96.00 f 102.00 d ----- z ----- z 79.00 z 78.00 e 59.00 h 56.00 e 102.00
1929 49.00 c 52.00 69.00 c 78.00 a 90.00 a 95.00 b 104.00 d 101.00 d 92.00 e 82.00 c 62.00 e 56.00 a 104.00
1930 55.00 65.00 c 78.00 b 82.00 83.00 c 92.00 g 103.00 c 101.00 f 93.00 b 80.00 a 67.00 d 50.00 103.00
1931 59.00 62.00 67.00 86.00 96.00 101.00 104.00 100.00 96.00 a 85.00 76.00 50.00 104.00
1932 54.00 a 69.00 72.00 82.00 86.00 97.00 97.00 100.00 94.00 90.00 a 71.00 62.00 100.00
1933 62.00 55.00 62.00 85.00 85.00 102.00 101.00 102.00 88.00 83.00 72.00 65.00 102.00
1934 61.00 61.00 77.00 90.00 99.00 100.00 105.00 98.00 97.00 85.00 71.00 59.00 105.00
1935 66.00 55.00 71.00 75.00 84.00 92.00 103.00 94.00 95.00 84.00 56.00 53.00 103.00
1936 54.00 62.00 71.00 87.00 98.00 99.00 103.00 100.00 92.00 c 83.00 a 56.00 62.00 103.00
1937 43.00 55.00 a 75.00 75.00 88.00 100.00 103.00 99.00 94.00 77.00 63.00 63.00 103.00
1938 57.00 50.00 67.00 a 82.00 92.00 94.00 107.00 95.00 96.00 77.00 64.00 59.00 107.00
1939 58.00 57.00 80.00 89.00 95.00 100.00 110.00 a 100.00 91.00 75.00 64.00 62.00 110.00
1940 49.00 58.00 75.00 73.00 94.00 99.00 101.00 96.00 92.00 79.00 55.00 57.00 101.00
1941 53.00 55.00 72.00 80.00 90.00 93.00 107.00 100.00 82.00 71.00 64.00 62.00 107.00
1942 49.00 54.00 74.00 86.00 84.00 97.00 103.00 103.00 94.00 82.00 59.00 54.00 103.00
1943 55.00 59.00 69.00 86.00 84.00 89.00 99.00 95.00 95.00 86.00 63.00 59.00 99.00
1944 52.00 57.00 75.00 80.00 91.00 96.00 102.00 95.00 99.00 80.00 62.00 56.00 102.00
1945 63.00 63.00 70.00 78.00 88.00 97.00 100.00 97.00 92.00 82.00 68.00 56.00 100.00
1946 55.00 59.00 a 75.00 86.00 87.00 96.00 101.00 100.00 88.00 72.00 65.00 60.00 101.00
1947 58.00 68.00 76.00 87.00 98.00 94.00 97.00 95.00 91.00 78.00 63.00 56.00 98.00
1948 54.00 64.00 72.00 78.00 89.00 102.00 95.00 93.00 a 94.00 77.00 57.00 51.00 102.00
1949 50.00 56.00 63.00 82.00 95.00 98.00 99.00 a 100.00 97.00 72.00 63.00 58.00 100.00
1950 46.00 64.00 65.00 a 77.00 88.00 96.00 96.00 f 98.00 97.00 77.00 62.00 63.00 98.00
1951 58.00 64.00 69.00 84.00 e 94.00 90.00 101.00 97.00 92.00 74.00 57.00 a 56.00 101.00
1952 48.00 58.00 72.00 a 87.00 89.00 90.00 101.00 98.00 93.00 84.00 60.00 54.00 h 101.00
1953 61.00 a 65.00 67.00 76.00 84.00 83.00 99.00 97.00 h 90.00 80.00 69.00 56.00 a 99.00
1954 51.00 62.00 61.00 80.00 94.00 i 92.00 94.00 96.00 86.00 71.00 60.00 53.00 96.00
1955 54.00 55.00 66.00 76.00 82.00 95.00 99.00 e 98.00 97.00 75.00 65.00 55.00 99.00
1956 51.00 59.00 65.00 85.00 93.00 93.00 100.00 99.00 92.00 77.00 61.00 58.00 100.00
1957 45.00 63.00 c 63.00 87.00 92.00 96.00 95.00 91.00 a 93.00 78.00 59.00 58.00 96.00
1958 60.00 62.00 a 64.00 74.00 97.00 99.00 101.00 100.00 93.00 86.00 64.00 64.00 101.00
1959 56.00 57.00 65.00 79.00 87.00 94.00 103.00 95.00 88.00 75.00 72.00 63.00 103.00
1960 50.00 59.00 81.00 79.00 87.00 93.00 103.00 99.00 90.00 83.00 65.00 50.00 103.00
1961 60.00 62.00 67.00 74.00 90.00 101.00 102.00 101.00 85.00 79.00 58.00 58.00 102.00
1962 62.00 60.00 63.00 85.00 79.00 94.00 b 100.00 96.00 92.00 74.00 64.00 54.00 100.00
1963 55.00 60.00 70.00 72.00 89.00 98.00 90.00 96.00 93.00 81.00 60.00 52.00 98.00
1964 ----- z 61.00 75.00 72.00 82.00 90.00 102.00 94.00 88.00 74.00 62.00 55.00 102.00
1965 59.00 66.00 69.00 80.00 90.00 94.00 99.00 102.00 87.00 81.00 66.00 51.00 102.00
1966 53.00 59.00 77.00 79.00 94.00 94.00 95.00 97.00 95.00 80.00 64.00 55.00 97.00
1967 61.00 65.00 67.00 69.00 c 90.00 96.00 100.00 a 102.00 98.00 77.00 74.00 58.00 102.00
1968 64.00 64.00 68.00 88.00 85.00 95.00 105.00 98.00 91.00 83.00 59.00 57.00 105.00
1969 47.00 47.00 71.00 77.00 91.00 99.00 96.00 97.00 91.00 71.00 64.00 52.00 99.00
1970 50.00 56.00 67.00 69.00 88.00 101.00 100.00 98.00 87.00 82.00 59.00 58.00 101.00
1971 69.00 66.00 64.00 72.00 86.00 92.00 102.00 105.00 84.00 81.00 60.00 51.00 b 105.00
1972 57.00 67.00 74.00 75.00 92.00 93.00 95.00 103.00 91.00 80.00 56.00 62.00 103.00
1973 58.00 60.00 67.00 78.00 92.00 96.00 99.00 96.00 92.00 74.00 60.00 58.00 b 99.00
1974 60.00 59.00 68.00 73.00 81.00 98.00 98.00 98.00 95.00 78.00 60.00 57.00 98.00
1975 60.00 58.00 a 63.00 75.00 85.00 89.00 104.00 92.00 90.00 77.00 73.00 61.00 104.00
1976 64.00 61.00 68.00 74.00 88.00 93.00 97.00 92.00 96.00 84.00 66.00 58.00 97.00
1977 64.00 68.00 70.00 91.00 79.00 97.00 97.00 101.00 85.00 72.00 65.00 62.00 101.00
1978 49.00 57.00 74.00 75.00 84.00 96.00 99.00 101.00 85.00 79.00 66.00 55.00 101.00
1979 34.00 60.00 73.00 79.00 91.00 95.00 104.00 95.00 90.00 80.00 57.00 57.00 104.00
1980 48.00 58.00 67.00 82.00 86.00 85.00 99.00 94.00 91.00 85.00 64.00 63.00 99.00
1981 53.00 63.00 69.00 86.00 89.00 91.00 97.00 100.00 93.00 79.00 66.00 56.00 100.00
1982 57.00 65.00 70.00 79.00 86.00 95.00 101.00 97.00 89.00 73.00 61.00 61.00 101.00
1983 61.00 60.00 63.00 77.00 100.00 92.00 97.00 98.00 84.00 74.00 67.00 49.00 100.00
1984 57.00 62.00 69.00 ----- z 90.00 90.00 99.00 95.00 92.00 82.00 59.00 54.00 99.00
1985 40.00 60.00 67.00 80.00 92.00 98.00 100.00 94.00 84.00 73.00 65.00 45.00 100.00
1986 59.00 69.00 74.00 84.00 ----- z ----- z ----- z 103.00 94.00 a 83.00 61.00 51.00 103.00
1987 53.00 ----- z 71.00 88.00 97.00 100.00 101.00 101.00 99.00 83.00 66.00 66.00 101.00
1988 53.00 69.00 68.00 81.00 92.00 95.00 101.00 96.00 98.00 84.00 65.00 57.00 101.00
1989 64.00 51.00 63.00 a ----- z 84.00 92.00 95.00 98.00 ----- z 78.00 73.00 56.00 98.00
1990 56.00 63.00 a 73.00 79.00 83.00 93.00 104.00 101.00 94.00 ----- z 68.00 59.00 104.00
1991 60.00 ----- z 68.00 79.00 78.00 85.00 ----- z 98.00 ----- z 85.00 64.00 58.00 a 98.00
1992 ----- z ----- z ----- z 83.00 93.00 105.00 101.00 103.00 87.00 82.00 58.00 52.00 105.00
1993 49.00 50.00 ----- z 71.00 99.00 92.00 90.00 96.00 95.00 85.00 63.00 59.00 99.00
1994 58.00 58.00 a 76.00 ----- z 90.00 92.00 105.00 99.00 ----- z ----- z ----- z ----- z 105.00
1995 ----- z ----- z ----- z ----- z 91.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 91.00
1996 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 96.00 85.00 63.00 53.00 96.00
1997 58.00 61.00 78.00 74.00 92.00 95.00 100.00 102.00 93.00 77.00 65.00 58.00 102.00
1998 60.00 58.00 ----- z 85.00 90.00 94.00 108.00 106.00 ----- z 83.00 64.00 62.00 108.00
1999 60.00 62.00 74.00 82.00 96.00 100.00 105.00 100.00 92.00 80.00 76.00 64.00 105.00
2000 55.00 60.00 65.00 81.00 88.00 100.00 100.00 105.00 92.00 76.00 63.00 50.00 105.00
2001 56.00 56.00 72.00 85.00 100.00 99.00 105.00 103.00 94.00 85.00 67.00 57.00 105.00
2002 64.00 66.00 66.00 74.00 82.00 100.00 111.00 101.00 95.00 77.00 64.00 59.00 111.00
2003 66.00 61.00 77.00 73.00 91.00 97.00 104.00 102.00 99.00 85.00 64.00 49.00 104.00
2004 58.00 56.00 73.00 82.00 85.00 101.00 103.00 103.00 95.00 82.00 63.00 63.00 103.00
2005 53.00 59.00 74.00 82.00 96.00 96.00 102.00 101.00 91.00 75.00 61.00 51.00 102.00
2006 57.00 56.00 65.00 83.00 98.00 103.00 108.00 100.00 97.00 85.00 71.00 56.00 108.00
2007 59.00 64.00 76.00 78.00 91.00 99.00 106.00 101.00 92.00 77.00 72.00 62.00 106.00
2008 53.00 63.00 63.00 81.00 98.00 104.00 102.00 ----- z 90.00 81.00 67.00 ----- z 104.00
2009 ----- z ----- z ----- z ----- z 94.00 92.00 ----- z 106.00 94.00 71.00 66.00 49.00 106.00
2010 ----- z 59.00 70.00 78.00 ----- z 90.00 101.00 100.00 87.00 84.00 67.00 55.00 101.00
2011 64.00 b 63.00 68.00 72.00 79.00 93.00 96.00 a 97.00 a 98.00 a 75.00 63.00 60.00 a 98.00
2012 58.00 d ----- z 71.00 a ----- z ----- z ----- z 104.00 103.00 a 89.00 82.00 68.00 a 58.00 104.00
2013 54.00 56.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 56.00
Period of Record Statistics
MEAN 55.76 60.11 69.89 79.99 89.48 95.56 100.93 98.75 91.89 79.29 64.04 56.84 102.07
S.D. 6.20 4.55 4.66 5.38 5.37 4.44 3.94 3.31 4.05 4.45 4.70 4.44 3.06
SKEW -0.68 -0.29 0.20 0.02 0.00 -0.27 -0.20 -0.05 -0.37 -0.13 0.46 -0.20 0.62
MAX 69.00 69.00 81.00 91.00 100.00 105.00 111.00 106.00 99.00 90.00 76.00 66.00 111.00
MIN 34.00 47.00 61.00 69.00 78.00 83.00 90.00 91.00 82.00 71.00 55.00 45.00 96.00
NO YRS 79 80 80 80 81 82 81 81 81 84 83 82 59