HEADWORKS PTLD WTR BUR, OREGON

Monthly Average Temperature (Degrees Fahrenheit)

(353770)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1899 ----- z ----- z ----- z 45.63 d 48.32 55.72 64.68 58.53 59.87 47.77 48.00 39.68 52.02
1900 40.66 39.04 47.47 49.12 54.05 61.72 64.06 58.94 56.17 48.81 43.03 40.78 a 50.32
1901 36.13 38.83 a 41.75 g 45.10 53.23 a 55.78 60.74 64.11 ----- z 54.13 45.17 39.27 49.25
1902 36.18 40.27 43.43 b ----- z ----- z 59.42 62.89 63.05 56.37 52.50 41.67 37.77 a 49.35
1903 39.02 35.05 ----- z ----- z ----- z 60.65 61.74 62.60 54.90 ----- z ----- z 37.74 50.24
1904 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 38.98 38.98
1905 ----- z ----- z ----- z 50.72 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 50.72
1906 ----- z ----- z ----- z ----- z 53.82 57.90 70.76 66.60 60.50 52.52 44.32 41.31 55.96
1907 32.39 42.26 g 41.82 48.90 56.97 59.65 65.26 61.35 59.73 55.05 46.13 40.71 51.63
1908 39.65 39.00 43.13 50.15 49.56 57.75 67.56 63.81 57.70 49.65 46.10 36.90 50.08
1909 31.24 39.23 43.82 46.75 51.37 59.18 60.18 61.19 59.73 51.66 43.00 33.35 48.39
1910 34.60 35.71 49.02 50.70 56.82 57.88 a 65.34 65.81 59.72 54.61 43.87 41.73 51.32
1911 36.98 39.88 47.02 50.58 53.44 56.12 67.76 62.39 49.10 48.00 40.78 37.18 49.10
1912 35.66 40.97 39.13 43.63 53.89 61.47 63.52 58.02 60.03 50.96 d 45.23 39.42 49.33
1913 34.61 37.52 41.66 48.68 b ----- z 60.53 63.89 63.60 58.60 50.53 44.02 37.79 49.22
1914 39.94 40.71 47.79 49.98 55.18 55.48 64.02 65.74 55.98 55.21 44.67 34.31 50.75
1915 37.06 42.09 49.29 51.84 a 53.56 58.66 b 63.61 67.10 59.63 52.45 42.52 39.26 51.42
1916 29.97 39.40 42.56 49.25 49.31 58.22 a 60.82 64.28 a 58.82 49.94 40.78 35.02 48.20
1917 35.57 c 38.48 39.15 44.53 50.47 58.27 66.19 ----- z 59.97 53.79 47.63 44.71 48.98
1918 42.15 38.54 43.40 49.32 52.23 64.33 64.10 63.29 63.08 53.60 44.47 39.08 51.46
1919 39.16 39.27 44.77 49.43 54.55 57.98 66.40 66.15 59.52 47.97 42.30 31.26 49.90
1920 39.02 42.00 44.31 45.22 52.58 59.52 65.35 66.40 57.57 ----- z 43.83 41.81 50.69
1921 38.35 41.64 45.89 50.42 55.26 68.72 62.42 64.79 58.17 54.50 48.15 37.35 a 52.14
1922 33.60 36.36 40.00 45.40 54.89 62.40 67.31 64.71 61.23 52.77 41.07 33.24 49.41
1923 39.05 36.96 42.89 51.97 53.89 59.77 65.56 67.37 62.38 54.11 48.58 39.66 51.85
1924 37.32 45.50 44.26 50.33 58.76 61.52 64.73 63.47 a 60.77 52.27 43.42 33.44 51.31
1925 41.10 43.68 45.21 51.85 58.47 61.70 66.95 64.27 60.43 54.61 43.98 43.69 53.00
1926 40.89 46.16 51.48 57.17 54.35 60.85 66.31 66.13 57.23 55.32 49.72 41.73 53.94
1927 38.89 41.88 43.40 48.33 52.97 61.75 64.27 64.89 55.83 52.19 46.32 35.42 50.51
1928 36.34 40.29 c 46.60 46.68 57.60 57.55 63.52 63.00 b 59.52 54.73 46.67 38.15 50.89
1929 34.15 35.57 44.82 47.27 56.24 60.10 65.98 66.35 a 61.13 55.68 43.65 42.60 51.13
1930 28.53 42.88 48.79 54.00 52.77 59.88 63.87 66.98 61.25 51.84 45.85 39.74 51.37
1931 41.77 42.75 45.69 51.82 59.50 60.55 65.57 a 65.61 58.23 52.98 42.03 37.65 52.01
1932 36.56 37.28 44.35 49.28 54.06 62.67 62.11 64.27 62.10 54.98 46.67 35.81 50.85
1933 36.74 34.57 43.53 49.00 50.39 57.92 64.92 65.60 55.37 54.08 45.45 43.84 50.12
1934 43.73 47.21 52.77 56.48 57.82 59.72 62.61 66.40 59.90 55.45 b 47.33 41.26 54.22
1935 35.40 a 43.23 40.56 48.42 55.02 60.67 64.63 64.37 63.08 51.02 40.23 40.55 50.60
1936 40.44 32.95 42.31 53.02 59.05 a 61.45 64.32 64.90 59.83 56.24 45.22 40.68 51.70
1937 28.08 36.34 44.19 46.25 55.44 61.82 65.95 63.34 60.48 55.85 46.55 41.81 50.51
1938 39.00 40.18 43.13 50.43 56.16 61.07 67.63 62.52 63.50 54.05 41.00 a 39.89 51.55
1939 40.26 37.70 45.06 51.87 56.90 56.78 65.47 65.81 60.58 52.55 46.43 42.73 51.84
1940 38.42 a 43.64 47.79 51.90 59.48 62.82 64.68 66.40 62.20 55.44 42.88 41.18 53.07
1941 41.19 45.66 51.21 52.55 56.06 59.47 69.45 64.47 57.95 52.35 46.32 40.00 53.06
1942 35.58 39.93 44.11 50.83 53.24 57.45 66.90 66.48 62.17 54.35 43.22 39.21 51.12
1943 33.18 41.54 43.53 52.43 52.58 58.12 65.73 a 62.71 63.40 53.23 46.03 39.53 51.00
1944 38.11 40.07 43.63 49.28 55.61 59.12 65.55 64.58 62.52 56.66 43.53 38.92 51.47
1945 40.56 41.25 41.74 46.78 56.19 59.28 66.18 64.73 58.05 52.11 42.53 39.44 50.74
1946 38.84 40.59 43.47 48.93 57.02 57.98 64.81 64.15 57.95 47.53 40.42 39.74 50.12
1947 33.79 43.55 47.69 50.33 58.21 57.62 a 62.73 61.42 60.76 a 51.31 43.77 40.05 50.94
1948 38.50 37.41 41.58 45.65 53.66 62.58 61.65 61.35 57.57 a 49.50 39.80 34.16 48.62
1949 27.80 a 35.25 42.71 b 50.00 56.32 59.03 a 62.42 a 63.13 a 60.93 a 46.17 a 49.05 36.95 a 49.15
1950 26.34 35.64 40.50 45.52 51.02 57.60 64.23 a 66.37 59.65 50.08 42.28 43.63 48.57
1951 36.17 b 39.46 38.45 b 50.83 51.77 a 61.32 64.10 a 62.83 b 60.95 47.55 a 42.52 a 34.53 a 49.21
1952 34.33 a 38.44 b 41.68 50.67 a 55.60 57.97 66.18 65.60 63.24 a 57.85 41.60 38.03 a 50.93
1953 44.02 a 41.88 43.23 a 47.83 52.37 55.48 64.15 63.87 61.45 54.18 46.68 41.23 51.36
1954 36.15 a 41.29 41.63 47.43 55.40 a 55.55 61.03 b 60.72 a 58.85 51.59 c 47.59 a 39.52 a 49.73
1955 36.85 38.82 39.34 43.81 a 51.15 a 58.42 61.07 c 63.33 a 59.28 a 51.74 b 38.55 a 37.30 a 48.31
1956 37.15 a 33.41 40.13 49.93 a 56.58 a 56.81 a 65.42 a 62.82 59.52 48.89 42.83 39.31 49.40
1957 30.65 38.25 43.24 49.57 56.11 59.13 62.60 61.37 a 63.73 51.30 a 43.68 41.27 50.08
1958 42.29 47.14 43.77 49.38 60.90 63.97 69.76 68.39 61.18 56.26 45.70 45.06 54.48
1959 39.95 39.73 44.44 49.15 53.08 60.05 66.42 62.87 57.35 52.98 45.35 41.76 51.09
1960 35.97 41.91 44.29 49.65 52.50 61.07 66.94 62.05 60.48 53.42 44.78 41.56 51.22
1961 44.56 43.77 44.81 47.63 54.61 64.73 67.65 68.66 57.83 51.58 42.05 39.68 52.30
1962 38.10 42.30 41.71 51.32 50.68 59.55 63.81 63.60 61.18 53.55 46.29 a 42.92 51.25
1963 34.65 48.00 44.56 46.68 55.52 58.12 62.11 64.68 65.13 55.39 45.75 42.18 51.90
1964 40.63 41.79 43.05 46.23 52.39 57.63 63.94 62.85 59.15 56.37 42.72 37.23 50.33
1965 40.42 41.48 46.53 50.88 52.15 59.83 66.98 66.35 59.45 57.42 48.47 38.45 a 52.37
1966 39.21 41.32 44.34 50.40 55.63 59.42 63.42 65.87 62.27 53.56 46.65 42.29 52.03
1967 41.06 43.46 42.16 45.87 55.24 62.88 66.26 71.60 65.63 54.52 47.70 37.69 52.84
1968 38.74 47.84 48.08 47.58 55.24 59.85 66.05 63.44 61.07 51.53 45.68 36.31 51.78
1969 32.77 39.23 45.52 48.80 57.89 61.27 62.50 61.58 61.08 52.50 46.73 41.77 50.97
1970 40.45 46.68 45.47 45.17 54.69 62.93 65.19 66.02 58.02 52.08 45.17 38.74 51.72
1971 38.66 41.70 41.10 48.52 56.32 56.50 65.65 66.77 57.90 50.55 43.70 37.58 50.41
1972 36.44 41.57 46.58 44.83 56.63 59.88 65.85 66.81 57.77 51.50 46.07 35.27 50.77
1973 37.90 45.18 44.73 50.03 57.23 59.85 66.68 62.55 62.20 51.71 40.73 43.24 51.84
1974 36.53 40.59 45.06 48.55 52.00 60.63 63.66 65.37 65.35 54.82 45.90 41.74 51.68
1975 39.76 39.73 42.84 45.15 54.60 58.15 64.84 61.19 64.48 51.84 43.65 42.68 50.74
1976 41.24 40.81 42.63 48.72 56.03 57.62 63.74 62.58 a 62.23 54.42 49.32 42.26 51.80
1977 39.29 46.23 43.00 51.97 51.03 62.28 64.02 68.84 58.48 53.82 a 42.88 42.02 51.99
1978 41.09 c 44.20 48.15 48.52 52.89 62.33 65.24 64.61 59.07 56.74 40.67 36.13 51.64
1979 32.23 39.04 47.81 49.20 56.47 60.88 65.65 64.27 64.52 55.73 45.58 44.34 52.14
1980 35.45 43.03 43.92 52.02 54.27 57.22 65.69 62.97 62.17 57.21 47.78 44.27 a 52.17
1981 46.13 a 44.23 47.82 50.82 55.29 59.03 64.32 68.98 62.72 52.55 48.22 41.85 53.50
1982 37.52 41.18 44.16 47.13 54.89 62.55 63.81 65.77 61.65 54.79 43.62 40.79 51.49
1983 44.94 46.36 48.53 50.87 58.52 59.22 62.89 65.32 59.58 53.97 46.53 34.79 52.63
1984 41.85 45.05 48.87 47.47 53.74 58.67 66.53 66.34 61.50 50.97 44.52 37.15 51.89
1985 39.60 38.79 43.03 51.25 55.24 61.90 69.82 65.40 58.08 52.31 36.42 36.67 a 50.71
1986 43.95 42.12 51.27 49.18 55.76 63.83 62.65 69.18 58.48 56.63 46.72 42.03 53.48
1987 40.13 44.95 46.89 54.03 57.95 63.97 64.65 68.37 ----- z 58.95 47.92 37.79 53.24
1988 38.21 44.57 45.10 50.52 54.81 60.33 65.16 66.44 63.32 58.53 44.90 41.45 52.78
1989 39.84 34.95 44.02 53.98 56.24 62.98 63.90 64.19 64.27 53.53 47.58 41.06 52.21
1990 41.74 39.52 47.45 53.90 54.39 61.15 68.85 68.74 65.38 52.18 46.45 33.50 52.77
1991 39.50 48.80 44.47 48.50 51.77 57.70 68.55 67.98 65.93 55.85 46.70 43.24 53.25
1992 43.90 48.83 52.18 53.72 62.34 64.98 68.58 68.82 62.27 55.52 46.15 38.21 55.46
1993 36.40 40.86 47.23 50.68 59.97 60.28 61.58 66.77 64.72 58.05 41.65 41.05 52.44
1994 43.58 40.64 49.06 52.07 58.84 59.65 68.69 67.69 65.90 53.95 40.50 39.94 53.38
1995 42.81 45.52 47.23 49.85 58.13 60.92 68.18 65.08 64.55 53.65 50.07 42.77 54.06
1996 40.23 42.29 46.55 52.25 53.69 61.55 70.44 69.50 60.48 54.35 44.72 40.39 53.04
1997 40.48 43.21 45.23 50.03 60.35 ----- z 66.42 68.85 64.20 52.32 49.65 40.68 52.86
1998 42.23 45.07 46.90 51.23 53.87 61.50 68.58 68.69 64.27 53.84 46.47 38.11 53.40
1999 41.71 41.70 43.74 49.03 52.55 58.85 65.23 67.42 63.88 55.06 48.60 42.97 52.56
2000 39.24 43.90 44.77 52.78 54.15 61.65 65.15 64.60 61.43 53.73 42.58 41.44 52.12
2001 42.00 41.88 46.08 47.40 57.53 58.47 62.94 65.87 62.27 52.21 47.23 40.73 52.05
2002 39.48 43.16 42.50 49.38 53.18 61.33 66.68 65.66 62.05 52.73 47.63 42.74 52.21
2003 45.74 43.75 46.35 47.92 54.98 63.33 67.60 67.52 63.60 55.61 43.00 41.02 53.37
2004 38.23 43.67 49.73 53.75 56.16 61.73 68.15 66.76 60.00 52.98 45.15 42.32 53.22
2005 41.35 44.23 48.95 50.02 57.66 58.33 66.27 66.84 59.18 54.40 44.17 39.16 52.55
2006 42.95 40.50 43.87 50.38 57.10 62.50 67.35 65.32 62.22 51.95 44.52 40.98 52.47
2007 37.90 43.20 47.87 49.80 54.54 f 59.22 g 66.80 h 64.65 58.93 49.98 41.77 36.36 m 49.26
2008 36.05 41.95 41.82 45.07 54.08 56.95 65.15 a 65.76 60.98 51.19 47.55 35.76 50.19
2009 38.05 40.80 40.40 47.18 54.90 60.20 68.48 65.26 62.32 50.90 44.15 36.10 50.73
2010 43.81 45.07 45.66 47.53 50.29 56.12 63.08 63.98 60.42 53.44 42.80 40.24 51.04
2011 39.68 38.18 41.66 43.87 49.87 56.75 61.44 64.39 63.52 52.90 43.00 b 38.03 49.44
2012 39.98 41.36 40.84 48.70 53.71 56.40 63.13 66.24 62.26 a 52.98 46.55 38.98 50.93
2013 36.66 40.88 45.57 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 41.03
Period of Record Statistics
MEAN 38.30 41.30 44.76 49.37 54.88 59.89 65.12 64.96 60.66 53.16 44.74 39.54 51.45
S.D. 3.86 3.37 2.98 2.67 2.69 2.40 2.26 2.41 2.74 2.49 2.62 2.87 1.44
SKEW -0.69 -0.08 0.38 0.09 0.07 0.44 0.18 -0.20 -0.60 -0.28 -0.32 -0.51 0.00
MAX 46.13 48.83 52.77 57.17 62.34 68.72 70.76 71.60 65.93 58.95 50.07 45.06 55.46
MIN 26.34 32.95 38.45 43.63 48.32 55.48 60.18 58.02 49.10 46.17 36.42 31.26 48.20
NO YRS 111 110 109 110 108 110 111 111 110 110 111 112 100