HILLSBORO, OREGON

Monthly Average 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 52.21 f 49.45 49.45
1930 32.67 a 51.11 59.55 64.77 63.84 73.47 80.35 84.28 b 73.93 63.53 a 52.45 a 45.88 e 62.15
1931 49.93 c 52.31 b 56.07 a 66.37 76.65 74.79 a 86.19 84.68 70.70 63.55 49.27 43.00 64.46
1932 42.52 46.69 53.16 61.70 67.77 79.83 78.68 82.42 79.93 a 66.17 h 53.07 a 41.93 c 62.52
1933 43.06 45.24 k 53.19 65.07 62.97 73.83 83.55 83.29 68.10 66.07 c 51.11 b 50.00 63.66
1934 53.05 j 55.86 64.97 a 73.31 d 73.20 a 77.41 a 79.87 83.13 74.53 65.61 53.87 47.45 68.11
1935 43.97 51.79 50.13 62.60 72.52 78.93 82.61 84.13 78.53 58.74 47.83 45.39 63.10
1936 47.39 40.24 53.40 a 66.34 a 73.19 74.80 80.65 82.58 75.27 68.93 a 52.03 45.42 63.35
1937 34.32 47.41 a 56.32 57.87 71.29 76.20 81.71 78.15 d 74.20 66.38 b 53.80 48.81 62.20
1938 45.29 48.82 53.58 63.20 71.00 78.83 a 86.90 78.10 a 77.59 a 63.81 48.63 c 47.61 63.61
1939 47.10 45.50 57.52 66.43 72.03 72.87 83.00 82.26 76.17 62.23 a 52.73 48.68 63.88
1940 46.81 52.10 58.63 a 64.37 74.48 80.72 a 79.81 82.81 74.47 64.68 50.83 a 47.00 64.73
1941 48.48 54.57 63.58 65.93 67.77 74.03 85.94 78.13 68.60 63.39 52.27 46.87 64.13
1942 40.23 48.86 54.84 61.97 65.71 71.33 81.52 80.42 75.93 64.58 49.53 47.29 61.85
1943 39.55 53.32 54.71 65.60 67.19 72.17 81.35 77.39 83.00 63.74 54.20 46.35 63.21
1944 46.13 49.85 b 55.94 61.53 70.74 73.63 82.84 80.77 79.43 69.13 52.53 45.45 64.00
1945 48.19 51.25 52.94 59.57 70.39 75.40 83.77 81.81 73.20 65.52 52.13 46.71 63.41
1946 45.32 49.11 56.13 62.90 73.32 71.83 80.81 82.74 75.30 61.48 52.03 47.71 63.22
1947 41.94 54.61 61.94 67.47 74.39 71.93 77.23 77.48 78.33 63.71 53.97 47.45 64.20
1948 ----- z ----- z ----- z ----- z ----- z ----- z 79.87 a 76.00 75.67 62.97 49.62 a 41.35 64.25
1949 36.16 46.57 54.61 65.93 73.45 77.41 a 81.97 80.29 g 81.37 59.48 57.83 46.84 61.97
1950 35.29 47.29 51.67 a 59.57 69.45 75.77 82.97 85.90 79.77 58.94 52.07 52.13 62.57
1951 44.90 b 50.43 50.39 69.43 71.00 80.67 84.26 83.26 80.13 63.06 51.93 43.32 64.40
1952 41.90 47.52 52.94 67.13 71.35 72.07 a 87.17 a 84.16 83.47 74.87 49.83 a 47.52 64.99
1953 52.90 52.68 54.45 59.47 65.45 67.63 80.94 79.52 77.87 67.00 55.10 48.42 63.45
1954 43.94 52.11 a 56.14 c 60.93 a 71.71 69.21 a 77.00 75.06 73.50 64.73 a 55.43 46.61 62.20
1955 44.06 47.75 49.81 55.13 64.68 73.13 75.29 81.10 76.03 62.74 47.53 45.13 60.20
1956 46.26 41.55 51.06 65.23 72.52 68.60 83.65 79.32 74.17 59.26 50.97 45.16 61.48
1957 36.32 50.18 54.03 63.77 70.13 73.27 78.10 77.42 81.90 62.80 a 53.13 48.81 62.49
1958 49.45 55.32 55.29 61.27 75.58 77.30 88.39 86.42 75.03 69.35 51.73 49.77 66.24
1959 46.39 48.29 54.32 61.83 65.45 71.20 82.06 78.84 70.30 64.29 53.00 44.87 61.74
1960 38.03 48.14 52.61 59.30 61.87 76.63 86.68 79.32 77.37 66.58 52.93 46.52 62.17
1961 50.58 51.79 54.03 58.43 66.39 81.30 85.68 88.71 74.17 64.35 50.33 46.42 64.35
1962 45.39 49.75 52.58 62.67 60.71 73.77 81.55 78.39 74.57 62.97 53.50 47.87 61.98
1963 40.13 56.00 54.13 55.57 68.32 71.47 73.68 78.87 79.67 62.45 52.48 g 48.90 62.65
1964 47.13 52.41 53.32 58.47 64.35 69.73 77.06 75.13 71.97 66.77 a 49.00 45.00 60.86
1965 46.00 50.25 59.71 61.77 64.94 72.33 82.32 79.32 73.93 67.74 54.83 43.77 63.08
1966 45.29 50.21 53.94 62.83 69.84 72.13 76.84 79.90 74.93 62.87 55.73 48.77 62.77
1967 48.32 52.86 51.90 a 56.37 68.29 77.33 83.71 91.61 82.21 a 64.33 a 55.87 46.77 64.96
1968 45.94 57.55 57.29 59.67 66.84 72.93 81.55 76.06 73.47 60.87 52.40 43.16 62.31
1969 38.74 47.54 59.58 60.93 72.39 76.80 78.52 78.19 73.47 62.06 53.53 47.00 62.40
1970 46.00 56.04 57.23 57.50 69.48 79.30 83.32 82.32 71.20 64.71 52.93 44.48 63.71
1971 44.68 50.11 51.35 60.17 69.19 68.87 82.90 84.39 72.47 60.71 51.30 44.10 61.69
1972 43.55 49.83 56.74 57.23 72.48 74.83 84.10 84.48 71.80 64.10 53.63 42.13 62.91
1973 43.65 53.50 54.10 62.60 70.39 72.97 82.77 77.06 75.55 a 62.35 49.07 49.03 62.75
1974 43.61 47.61 55.06 59.33 64.26 76.13 78.42 81.61 82.20 68.16 54.40 48.94 63.31
1975 47.06 47.50 53.16 57.00 68.45 71.33 79.84 74.90 80.37 59.61 51.20 48.45 61.57
1976 47.84 49.41 52.19 59.77 67.74 70.40 78.29 75.29 75.90 65.68 56.77 44.84 62.01
1977 46.13 54.68 52.61 65.80 62.65 76.03 77.10 84.00 70.97 a 64.10 b 50.13 48.16 62.70
1978 46.06 53.00 60.45 59.70 65.70 a 77.10 a 81.45 78.90 70.07 68.13 48.00 41.81 62.53
1979 38.00 47.86 59.71 60.93 70.16 76.00 81.73 a 77.97 76.76 a 66.42 52.53 50.68 63.23
1980 43.45 50.00 53.71 63.53 66.45 67.53 79.84 78.03 75.23 67.26 54.10 49.65 62.40
1981 51.77 51.14 58.90 60.57 66.19 70.33 78.61 85.58 76.83 63.74 56.40 48.58 64.06
1982 43.00 49.39 55.23 57.87 68.03 75.73 77.90 79.03 73.17 64.00 50.86 a 46.90 61.76
1983 48.45 52.54 57.16 62.53 71.35 70.30 74.94 78.77 72.97 63.97 54.00 39.55 62.21
1984 48.65 52.59 58.42 57.87 64.16 70.83 80.97 80.90 73.60 59.65 51.87 42.55 61.84
1985 44.10 48.07 54.39 63.33 68.68 74.20 86.45 79.26 70.53 62.45 43.33 42.55 61.45
1986 50.06 50.14 61.13 60.20 66.45 77.03 75.03 86.71 71.33 67.48 53.30 46.26 63.76
1987 46.84 52.61 56.35 65.70 71.00 77.77 77.00 83.00 79.17 73.03 55.20 43.00 65.06
1988 44.26 52.71 a 56.81 61.60 65.26 72.73 82.00 79.87 77.20 68.26 52.07 46.55 63.28
1989 46.71 42.54 51.84 66.80 68.26 75.90 74.84 76.23 79.93 63.32 53.67 45.23 62.10
1990 48.35 47.36 59.00 64.67 65.52 72.10 83.55 81.32 77.77 61.26 52.30 39.16 62.70
1991 46.23 57.07 53.48 59.13 62.39 68.10 80.74 81.97 80.30 67.81 52.63 46.48 63.03
1992 48.74 56.62 63.68 64.10 75.45 78.73 80.94 83.94 74.23 65.77 51.27 44.03 65.63
1993 41.71 48.18 57.29 59.97 70.97 70.57 71.74 79.58 80.10 67.90 47.50 46.55 61.84
1994 48.81 48.04 60.68 62.87 69.81 72.30 83.71 80.74 79.93 63.06 46.43 47.16 63.63
1995 48.87 55.19 a 56.94 60.00 71.32 73.33 81.52 78.19 77.27 62.19 56.90 47.16 64.07
1996 45.97 49.21 57.32 61.53 63.29 73.50 85.52 83.45 72.03 62.10 50.60 46.13 62.55
1997 45.84 50.68 54.84 60.43 73.74 72.77 80.58 84.00 76.53 61.65 60.13 47.13 64.03
1998 48.58 52.86 58.29 64.93 65.13 75.73 83.45 84.58 81.73 64.00 54.87 46.39 65.05
1999 47.45 50.82 54.68 62.57 65.58 70.43 78.86 q ----- z ----- z 60.42 s 55.87 53.10 57.56
2000 46.39 51.10 56.84 68.93 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 55.82
2001 ----- z ----- z ----- z ----- z 70.03 69.67 76.45 77.74 73.20 58.90 51.37 45.87 65.40
2002 44.00 49.96 50.23 62.00 65.10 75.96 c 86.30 k 84.20 p 76.33 o 64.26 55.17 49.10 57.31
2003 51.03 52.54 55.29 58.23 67.97 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 57.01
Period of Record Statistics
MEAN 44.96 50.57 55.63 62.11 68.69 73.96 81.02 80.88 75.89 64.31 52.37 46.36 63.06
S.D. 4.16 3.42 3.33 3.49 3.69 3.34 3.49 3.45 3.69 3.13 2.81 2.67 1.20
SKEW -0.91 -0.39 0.62 0.46 -0.01 0.18 -0.29 0.45 0.11 0.69 -0.29 -0.35 0.22
MAX 52.90 57.55 64.97 73.31 76.65 81.30 88.39 91.61 83.47 74.87 60.13 53.10 66.24
MIN 32.67 40.24 49.81 55.13 60.71 67.53 71.74 74.90 68.10 58.74 43.33 39.16 60.20
NO YRS 71 71 72 72 72 71 70 69 70 70 71 73 63