HILLSBORO, OREGON

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(353908)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200305
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
1929 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 64.00 f 58.00 64.00
1930 52.00 a 58.00 83.00 74.00 77.00 90.00 95.00 98.00 b 96.00 73.00 a 70.00 a 54.00 e 98.00
1931 64.00 c 60.00 b 64.00 a 87.00 92.00 94.00 a 105.00 98.00 90.00 78.00 67.00 58.00 105.00
1932 52.00 67.00 66.00 73.00 80.00 95.00 89.00 100.00 91.00 a 88.00 h 61.00 a 56.00 c 100.00
1933 58.00 53.00 k 60.00 80.00 83.00 91.00 96.00 100.00 80.00 81.00 c 58.00 b 64.00 100.00
1934 69.00 j 63.00 77.00 a 88.00 d 89.00 a 91.00 a 90.00 96.00 96.00 81.00 67.00 56.00 96.00
1935 63.00 60.00 60.00 77.00 86.00 95.00 107.00 101.00 94.00 84.00 58.00 54.00 107.00
1936 54.00 61.00 70.00 a 83.00 a 93.00 89.00 98.00 93.00 87.00 87.00 a 63.00 57.00 98.00
1937 43.00 59.00 a 64.00 65.00 85.00 91.00 90.00 90.00 d 97.00 77.00 b 63.00 61.00 97.00
1938 55.00 60.00 65.00 77.00 88.00 91.00 a 105.00 84.00 a 89.00 a 74.00 57.00 c 60.00 105.00
1939 56.00 53.00 74.00 83.00 92.00 88.00 103.00 99.00 89.00 75.00 a 62.00 57.00 103.00
1940 64.00 60.00 70.00 a 79.00 87.00 96.00 a 90.00 97.00 85.00 81.00 60.00 a 61.00 97.00
1941 56.00 59.00 74.00 80.00 86.00 93.00 104.00 94.00 76.00 72.00 65.00 59.00 104.00
1942 53.00 56.00 72.00 78.00 80.00 99.00 101.00 95.00 87.00 76.00 58.00 55.00 101.00
1943 49.00 62.00 62.00 83.00 89.00 91.00 94.00 89.00 93.00 84.00 64.00 56.00 94.00
1944 55.00 58.00 b 69.00 80.00 95.00 89.00 103.00 95.00 102.00 80.00 60.00 57.00 103.00
1945 60.00 59.00 62.00 74.00 85.00 93.00 96.00 99.00 89.00 84.00 62.00 60.00 99.00
1946 56.00 56.00 71.00 79.00 85.00 94.00 103.00 97.00 86.00 77.00 60.00 58.00 103.00
1947 55.00 63.00 78.00 87.00 89.00 86.00 89.00 89.00 92.00 78.00 64.00 55.00 92.00
1948 ----- z ----- z ----- z ----- z ----- z ----- z 95.00 a 88.00 96.00 73.00 61.00 a 49.00 96.00
1949 44.00 63.00 62.00 75.00 92.00 92.00 a 97.00 96.00 g 94.00 69.00 74.00 59.00 97.00
1950 50.00 60.00 60.00 a 77.00 84.00 91.00 94.00 98.00 95.00 75.00 62.00 64.00 98.00
1951 57.00 b 60.00 63.00 83.00 88.00 98.00 95.00 101.00 94.00 81.00 63.00 64.00 101.00
1952 58.00 55.00 65.00 78.00 91.00 82.00 a 101.00 a 104.00 97.00 92.00 63.00 a 59.00 104.00
1953 63.00 60.00 71.00 71.00 86.00 82.00 93.00 101.00 93.00 81.00 63.00 57.00 101.00
1954 55.00 61.00 a 65.00 c 77.00 a 87.00 86.00 a 86.00 88.00 89.00 74.00 a 69.00 53.00 89.00
1955 51.00 55.00 60.00 74.00 78.00 95.00 92.00 95.00 99.00 79.00 66.00 60.00 99.00
1956 56.00 53.00 70.00 88.00 97.00 86.00 108.00 97.00 87.00 80.00 60.00 60.00 108.00
1957 52.00 62.00 63.00 90.00 87.00 86.00 91.00 90.00 96.00 74.00 a 63.00 59.00 96.00
1958 61.00 64.00 65.00 79.00 91.00 99.00 105.00 101.00 100.00 88.00 64.00 63.00 105.00
1959 55.00 60.00 65.00 78.00 83.00 89.00 97.00 91.00 88.00 76.00 78.00 54.00 97.00
1960 56.00 54.00 73.00 76.00 76.00 89.00 102.00 100.00 92.00 81.00 62.00 62.00 102.00
1961 58.00 58.00 67.00 70.00 88.00 100.00 105.00 101.00 87.00 84.00 61.00 59.00 105.00
1962 62.00 60.00 68.00 78.00 72.00 86.00 96.00 90.00 92.00 77.00 70.00 58.00 96.00
1963 54.00 66.00 70.00 71.00 92.00 98.00 85.00 97.00 98.00 82.00 57.00 g 58.00 98.00
1964 57.00 64.00 75.00 70.00 83.00 82.00 93.00 90.00 84.00 82.00 a 62.00 62.00 93.00
1965 58.00 62.00 71.00 79.00 80.00 88.00 102.00 101.00 89.00 82.00 63.00 58.00 102.00
1966 53.00 60.00 73.00 77.00 88.00 91.00 89.00 91.00 90.00 82.00 69.00 57.00 91.00
1967 56.00 60.00 61.00 a 68.00 86.00 92.00 97.00 100.00 94.00 a 73.00 a 63.00 56.00 100.00
1968 59.00 70.00 67.00 80.00 79.00 92.00 94.00 92.00 91.00 74.00 62.00 51.00 94.00
1969 54.00 55.00 73.00 70.00 88.00 96.00 92.00 89.00 92.00 74.00 69.00 55.00 96.00
1970 58.00 65.00 66.00 66.00 87.00 96.00 100.00 97.00 85.00 87.00 69.00 55.00 100.00
1971 57.00 63.00 63.00 75.00 89.00 87.00 102.00 103.00 84.00 84.00 59.00 53.00 103.00
1972 56.00 60.00 74.00 76.00 95.00 86.00 98.00 104.00 93.00 80.00 62.00 59.00 104.00
1973 58.00 63.00 67.00 73.00 92.00 94.00 97.00 94.00 97.00 a 72.00 61.00 56.00 97.00
1974 56.00 55.00 68.00 73.00 79.00 92.00 96.00 98.00 94.00 83.00 65.00 61.00 98.00
1975 60.00 63.00 65.00 71.00 88.00 88.00 97.00 90.00 93.00 84.00 71.00 61.00 97.00
1976 60.00 64.00 65.00 82.00 84.00 90.00 94.00 90.00 88.00 82.00 68.00 56.00 94.00
1977 58.00 68.00 61.00 81.00 76.00 90.00 94.00 106.00 87.00 a 73.00 b 63.00 61.00 106.00
1978 55.00 65.00 74.00 75.00 86.00 a 94.00 a 99.00 103.00 82.00 80.00 62.00 58.00 103.00
1979 55.00 57.00 73.00 80.00 87.00 91.00 101.00 a 87.00 95.00 a 85.00 64.00 59.00 101.00
1980 55.00 59.00 65.00 83.00 79.00 80.00 101.00 94.00 91.00 90.00 70.00 64.00 101.00
1981 61.00 62.00 68.00 83.00 85.00 87.00 98.00 104.00 100.00 77.00 68.00 56.00 104.00
1982 57.00 61.00 69.00 81.00 85.00 98.00 91.00 96.00 91.00 79.00 62.00 a 59.00 98.00
1983 59.00 60.00 66.00 78.00 100.00 89.00 94.00 92.00 82.00 71.00 60.00 54.00 100.00
1984 61.00 63.00 68.00 81.00 87.00 87.00 98.00 96.00 86.00 81.00 60.00 54.00 98.00
1985 54.00 63.00 66.00 80.00 87.00 98.00 101.00 91.00 82.00 78.00 64.00 49.00 101.00
1986 60.00 68.00 70.00 79.00 93.00 92.00 88.00 100.00 93.00 83.00 65.00 54.00 100.00
1987 55.00 59.00 72.00 87.00 95.00 96.00 94.00 100.00 101.00 92.00 67.00 59.00 101.00
1988 56.00 70.00 a 71.00 82.00 89.00 91.00 101.00 100.00 103.00 91.00 64.00 60.00 103.00
1989 59.00 55.00 59.00 81.00 81.00 94.00 87.00 90.00 92.00 78.00 64.00 59.00 94.00
1990 57.00 67.00 72.00 83.00 88.00 95.00 99.00 100.00 93.00 77.00 63.00 52.00 100.00
1991 61.00 67.00 69.00 75.00 76.00 84.00 98.00 93.00 94.00 87.00 62.00 53.00 98.00
1992 59.00 67.00 70.00 80.00 92.00 102.00 102.00 101.00 87.00 80.00 60.00 55.00 102.00
1993 59.00 60.00 65.00 71.00 87.00 89.00 84.00 99.00 93.00 86.00 61.00 63.00 99.00
1994 56.00 53.00 78.00 75.00 87.00 84.00 101.00 92.00 95.00 73.00 53.00 60.00 101.00
1995 62.00 65.00 a 73.00 77.00 88.00 92.00 98.00 91.00 92.00 74.00 67.00 58.00 98.00
1996 56.00 64.00 72.00 81.00 80.00 89.00 101.00 101.00 87.00 84.00 63.00 54.00 101.00
1997 55.00 64.00 73.00 75.00 92.00 83.00 95.00 95.00 91.00 75.00 70.00 55.00 95.00
1998 59.00 63.00 74.00 90.00 90.00 89.00 105.00 100.00 97.00 79.00 64.00 61.00 105.00
1999 55.00 56.00 71.00 83.00 91.00 89.00 92.00 q ----- z ----- z 71.00 s 66.00 61.00 92.00
2000 53.00 58.00 75.00 80.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 80.00
2001 ----- z ----- z ----- z ----- z 92.00 87.00 89.00 94.00 84.00 79.00 59.00 56.00 94.00
2002 56.00 58.00 61.00 77.00 83.00 97.00 c 100.00 k 101.00 p 89.00 o 79.00 67.00 59.00 101.00
2003 62.00 61.00 72.00 68.00 88.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 88.00
Period of Record Statistics
MEAN 56.54 60.87 68.38 78.03 86.60 90.93 96.71 95.94 91.26 79.69 63.79 57.63 99.84
S.D. 3.95 4.06 5.14 5.49 5.45 4.77 5.64 5.03 5.42 5.24 4.16 3.41 3.84
SKEW -0.78 0.08 0.19 -0.07 -0.31 0.01 -0.19 -0.18 -0.23 0.33 0.65 -0.23 -0.21
MAX 64.00 70.00 83.00 90.00 100.00 102.00 108.00 106.00 103.00 92.00 78.00 64.00 108.00
MIN 43.00 53.00 59.00 65.00 72.00 80.00 84.00 84.00 76.00 69.00 53.00 49.00 91.00
NO YRS 71 71 72 72 72 71 70 69 70 70 71 73 58