PORTLAND WSFO, OREGON

Monthly Average Temperature (Degrees Fahrenheit)

(356751)

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
1941 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 48.03 42.87 45.45
1942 35.32 42.73 46.35 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 44.87 43.00 42.46
1943 33.24 43.48 45.45 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 46.08 39.97 41.65
1944 39.16 42.21 45.35 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 45.25 39.34 42.26
1945 42.40 44.36 45.16 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 45.20 39.81 43.39
1946 40.90 42.68 46.55 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 43.15 41.85 43.03
1947 37.19 45.21 49.26 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 47.03 42.90 44.32
1948 39.52 40.79 44.74 ----- z ----- z ----- z ----- z ----- z 61.82 53.22 a 43.73 38.05 45.98
1949 27.74 39.09 45.65 52.40 59.15 61.73 65.87 66.47 63.13 48.53 49.85 41.40 51.75
1950 26.98 38.79 45.05 48.55 54.50 61.77 66.85 68.77 61.78 52.37 46.42 46.39 51.52
1951 39.77 42.88 41.87 53.45 56.71 64.47 67.05 65.66 63.13 53.66 45.73 37.52 52.66
1952 35.63 41.67 45.34 52.38 57.48 60.25 67.95 67.85 64.80 58.65 40.65 41.61 52.86
1953 47.31 43.80 45.84 49.88 54.40 58.60 66.21 65.55 62.47 54.29 48.60 43.69 53.39
1954 39.00 42.50 43.82 49.53 56.71 57.92 63.03 63.32 60.17 53.05 49.65 40.89 51.63
1955 39.73 40.41 41.50 46.47 52.90 60.70 63.44 65.45 60.37 53.56 41.38 39.23 50.43
1956 39.92 35.84 44.16 52.65 59.05 59.03 68.00 65.40 60.82 51.71 42.60 40.65 51.65
1957 31.17 a 41.48 46.13 51.83 58.84 62.03 65.53 64.50 65.27 52.82 43.97 43.89 52.29
1958 43.58 48.59 45.45 50.83 61.76 65.22 70.56 70.29 62.30 55.18 45.43 43.56 55.23
1959 40.34 42.66 46.76 52.25 55.73 62.75 68.63 65.44 60.28 54.21 42.78 39.56 52.62
1960 35.34 42.26 44.95 50.63 53.94 63.03 69.05 65.40 61.50 54.48 46.47 38.66 52.14
1961 43.60 47.42 b 47.65 50.03 56.53 65.32 69.32 70.29 59.50 53.29 42.92 40.87 53.89
1962 38.60 42.93 45.24 52.55 53.87 61.60 66.35 65.92 63.28 55.15 47.53 42.56 52.97
1963 34.92 47.75 45.21 48.55 56.55 59.93 63.03 66.15 65.10 54.19 46.02 37.95 52.11
1964 40.89 40.05 43.84 46.73 52.56 58.70 64.48 63.69 58.43 53.21 41.03 37.02 50.05
1965 40.18 43.39 47.55 51.78 54.26 61.82 69.66 68.53 60.43 57.40 49.67 39.44 53.68
1966 40.27 42.71 47.16 50.58 56.97 62.35 66.37 67.50 64.43 53.65 47.08 44.21 53.61
1967 43.58 43.64 43.94 46.90 57.02 65.88 69.27 72.90 66.40 54.81 46.15 40.34 54.24
1968 39.32 48.12 48.15 48.02 56.32 62.18 68.60 65.76 61.48 52.03 46.53 37.29 52.82
1969 31.87 39.66 46.52 50.03 59.42 66.50 66.60 66.03 63.40 53.24 47.20 42.85 52.78
1970 40.56 45.98 46.92 48.32 57.00 65.87 69.15 68.16 60.70 52.97 47.12 39.92 53.55
1971 40.39 42.79 43.69 49.58 56.73 60.20 69.16 71.60 60.82 52.35 45.45 40.34 52.76
1972 39.15 43.78 49.73 48.02 60.11 63.98 70.85 71.71 61.12 53.00 48.22 37.39 53.92
1973 38.94 44.88 47.85 52.22 59.37 63.90 70.24 65.92 64.40 54.29 44.13 44.66 54.23
1974 37.97 42.96 47.16 51.30 55.69 64.33 67.03 68.87 67.30 55.15 48.10 44.11 54.17
1975 41.44 41.18 44.94 47.33 57.45 61.85 69.00 65.31 65.68 53.47 45.92 42.66 53.02
1976 42.23 42.10 44.35 50.22 56.58 60.35 67.15 65.50 64.18 54.61 46.92 39.47 52.80
1977 35.66 44.59 45.47 52.85 53.76 63.92 66.29 71.66 60.72 53.77 43.25 42.02 52.83
1978 40.05 44.68 49.13 50.43 54.63 65.10 68.35 67.53 60.90 54.69 39.05 35.24 52.48
1979 30.69 42.84 50.73 53.02 60.08 65.02 70.47 68.63 66.28 58.08 45.03 44.37 54.60
1980 35.08 42.47 46.24 53.83 57.34 60.65 68.85 66.35 63.75 56.03 48.52 44.00 53.59
1981 43.84 43.95 48.81 52.47 57.47 61.73 67.47 72.11 64.87 53.29 48.80 42.65 54.79
1982 39.61 43.50 48.47 48.98 57.56 65.92 67.42 68.56 63.17 54.85 44.35 41.71 53.68
1983 44.34 47.23 50.71 52.70 60.40 62.75 66.50 69.08 61.53 54.24 49.30 36.34 54.59
1984 42.18 45.88 51.08 50.37 56.40 62.13 69.05 69.39 63.67 52.82 46.67 38.29 53.99
1985 36.05 41.04 45.76 53.85 58.24 64.35 74.11 69.23 60.77 52.74 37.22 33.03 52.20
1986 42.47 43.61 51.24 50.20 57.60 66.30 65.27 72.29 61.50 56.97 47.68 40.52 54.64
1987 39.60 45.18 48.71 54.17 60.37 66.48 67.15 70.52 65.47 58.21 48.77 39.02 55.30
1988 39.00 44.69 47.19 52.15 56.37 62.40 68.40 67.94 63.98 58.32 47.45 41.97 54.16
1989 42.24 36.00 45.56 55.98 57.95 64.23 65.45 66.03 65.25 54.84 48.55 40.27 53.53
1990 43.32 41.88 49.35 54.52 56.74 63.55 71.15 70.84 67.02 53.82 48.37 34.66 54.60
1991 38.89 48.80 46.18 50.75 54.69 59.87 69.84 70.03 67.35 55.35 47.53 42.69 54.33
1992 44.50 48.09 52.27 55.40 63.10 67.35 70.18 69.79 62.23 55.87 46.25 39.31 56.19
1993 36.48 40.02 47.90 52.55 61.08 62.50 64.31 68.48 65.62 57.37 41.48 41.35 53.26
1994 44.44 40.84 50.21 54.18 60.66 62.92 71.05 70.16 67.58 54.13 42.67 42.27 55.09
1995 43.32 46.45 48.29 51.25 60.73 63.72 70.56 67.27 67.08 54.53 51.67 42.42 55.61
1996 40.63 41.60 47.63 53.47 55.23 63.62 72.02 70.32 61.80 53.94 45.42 41.63 53.94
1997 40.98 42.89 46.68 51.02 62.18 62.67 68.87 71.52 65.88 53.69 49.78 41.08 54.77
1998 42.95 46.07 48.73 52.75 56.23 63.35 70.95 70.98 66.90 54.32 48.93 40.50 55.22
1999 42.82 43.68 45.79 50.65 54.90 61.17 67.13 69.00 64.57 55.11 50.12 43.87 54.07
2000 39.82 43.67 45.60 54.02 57.52 65.62 a 67.81 67.76 63.90 55.25 a 42.77 40.34 53.67
2001 41.13 41.95 48.02 49.62 58.43 b 61.03 66.50 69.21 64.84 a 53.53 47.97 41.94 53.68
2002 41.16 44.38 44.85 52.25 55.68 64.63 69.81 69.27 64.68 54.13 47.57 43.39 54.32
2003 44.74 44.29 49.07 a 50.80 57.29 66.07 71.58 70.05 66.72 58.19 45.23 42.48 55.54
2004 38.45 45.24 51.23 56.32 60.10 65.47 71.52 71.47 62.77 56.27 45.82 43.23 55.66
2005 41.74 43.50 49.97 52.27 60.13 61.97 70.27 70.71 62.47 56.27 44.05 39.76 54.43
2006 45.48 42.00 46.08 53.10 59.76 66.30 70.97 69.19 65.10 54.02 47.37 39.98 54.95
2007 38.10 44.21 50.11 51.67 58.58 62.85 70.71 68.27 62.42 53.11 44.82 40.92 53.81
2008 38.79 44.88 45.44 48.50 58.87 61.82 68.79 69.60 65.23 53.55 49.22 37.45 53.51
2009 40.05 41.34 45.29 52.28 60.11 65.72 73.56 69.90 66.13 54.66 47.72 35.63 54.37
2010 45.05 46.57 48.24 50.95 55.03 60.43 67.48 68.15 64.43 55.08 44.95 42.56 54.08
2011 41.69 40.32 46.10 47.92 54.08 61.67 66.66 69.85 67.40 55.50 44.92 39.08 52.93
2012 40.82 43.38 45.03 53.00 57.98 61.22 68.00 71.10 66.05 56.11 48.98 42.90 54.55
2013 37.95 44.70 49.03 57.50 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 43.89
Period of Record Statistics
MEAN 39.61 43.29 46.88 51.30 57.42 62.95 68.33 68.44 63.61 54.48 46.04 40.76 53.62
S.D. 3.94 2.58 2.27 2.26 2.39 2.25 2.38 2.33 2.32 1.79 2.76 2.60 1.25
SKEW -1.03 -0.24 0.24 -0.14 0.14 -0.07 -0.06 -0.22 -0.09 0.16 -0.70 -0.59 -0.43
MAX 47.31 48.80 52.27 56.32 63.10 67.35 74.11 72.90 67.58 58.65 51.67 46.39 56.19
MIN 26.98 35.84 41.50 46.47 52.56 57.92 63.03 63.32 58.43 48.53 37.22 33.03 50.05
NO YRS 72 72 72 64 64 64 64 64 65 65 72 72 64