PORTLAND WSFO, OREGON

Monthly Average Maximum 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 54.80 47.68 51.24
1942 39.77 49.18 55.65 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 50.37 47.68 48.53
1943 40.03 52.64 53.45 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 53.50 46.32 49.19
1944 45.52 49.03 54.74 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 51.57 44.77 49.13
1945 48.48 50.75 51.97 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 50.33 44.87 49.28
1946 46.68 49.36 54.39 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 51.03 47.19 49.73
1947 43.42 53.82 58.81 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 52.63 48.29 51.39
1948 45.71 47.52 52.39 ----- z ----- z ----- z ----- z ----- z 72.87 61.87 a 49.53 42.81 53.24
1949 34.45 45.21 53.03 63.00 69.81 72.93 77.13 77.39 75.00 57.61 58.40 46.32 60.86
1950 32.77 45.50 51.45 57.87 65.81 71.33 79.00 81.81 74.37 58.68 51.60 51.42 60.13
1951 44.52 49.71 49.29 66.03 66.97 77.07 78.42 77.90 76.07 61.58 51.23 42.61 61.78
1952 40.42 48.38 52.42 64.37 68.52 69.37 80.94 79.65 79.03 71.77 49.47 46.81 62.59
1953 52.03 51.29 53.55 58.83 63.29 66.40 78.00 76.13 74.63 64.39 54.97 49.06 61.88
1954 44.19 49.75 54.06 59.30 67.39 66.17 72.58 71.65 69.90 62.97 55.83 46.03 59.99
1955 44.84 47.29 49.23 55.00 63.03 70.70 72.19 77.23 71.87 60.97 46.90 44.71 58.66
1956 45.19 40.86 51.77 63.63 69.74 67.63 80.13 75.71 72.03 59.03 50.57 46.00 60.19
1957 36.40 a 49.79 52.90 61.43 67.45 71.50 76.58 75.19 79.13 61.32 53.03 49.26 61.17
1958 49.87 54.61 54.77 60.47 73.35 73.60 83.48 83.26 74.03 67.23 51.67 49.10 64.62
1959 45.39 48.57 54.87 62.00 65.23 71.50 80.68 77.06 69.27 63.03 50.53 45.97 61.17
1960 39.39 49.48 53.35 60.13 62.42 74.43 82.84 75.55 73.23 64.16 53.40 44.84 61.10
1961 50.23 53.08 b 54.71 58.60 65.71 77.30 81.19 82.87 71.13 62.61 50.93 46.06 62.87
1962 45.32 50.29 53.52 62.37 61.10 72.67 78.87 76.68 74.80 63.65 53.87 48.52 61.80
1963 41.16 55.29 53.71 55.87 67.39 68.37 72.00 76.55 76.50 63.13 52.70 43.94 60.55
1964 46.68 49.52 51.97 56.03 63.26 68.43 75.87 75.19 70.33 64.48 47.63 42.65 59.34
1965 45.29 50.57 59.58 61.93 64.55 73.93 83.32 80.06 72.93 67.35 55.80 45.35 63.39
1966 45.55 50.25 56.26 61.00 69.61 74.07 77.26 80.35 75.43 63.39 53.47 48.90 62.96
1967 48.94 52.61 51.87 56.23 68.06 77.50 82.65 88.13 80.03 63.87 53.90 45.58 64.11
1968 44.65 57.76 57.03 57.83 65.65 72.70 81.26 75.68 71.37 60.77 53.53 42.16 61.70
1969 36.35 46.93 58.90 59.87 71.48 76.07 78.00 78.39 73.97 62.13 54.23 47.77 62.01
1970 46.10 54.86 57.23 57.37 68.90 77.87 82.48 81.45 72.07 63.68 54.20 45.77 63.50
1971 45.32 50.43 52.03 60.07 67.58 69.80 81.39 83.58 71.73 61.00 51.40 45.32 61.64
1972 44.81 50.52 58.26 57.40 71.35 74.63 83.94 85.03 72.77 64.13 55.00 43.06 63.41
1973 45.00 53.18 55.68 63.37 71.16 74.30 83.45 77.52 75.90 62.74 49.17 49.58 63.42
1974 43.74 48.36 55.26 59.30 64.42 75.60 77.90 80.35 81.93 67.84 54.70 49.65 63.25
1975 46.77 47.68 52.26 56.63 68.35 72.00 80.10 75.32 79.73 59.97 51.97 48.10 61.57
1976 47.90 49.24 53.03 60.07 67.23 70.80 78.52 74.29 74.57 64.77 56.07 45.42 61.83
1977 43.00 52.39 52.87 65.30 62.26 75.43 77.81 84.06 69.67 63.52 49.53 46.94 61.90
1978 44.48 51.39 59.32 58.80 64.45 75.57 80.00 77.77 69.00 66.90 46.87 41.61 61.35
1979 35.39 48.68 60.48 61.77 70.52 76.57 83.35 78.74 77.37 66.68 51.53 49.87 63.41
1980 40.81 49.45 53.52 64.53 66.13 68.47 80.00 77.58 75.13 66.84 54.83 50.16 62.29
1981 51.16 51.82 58.39 61.40 66.16 70.47 78.23 85.45 76.53 62.35 56.43 47.87 63.86
1982 44.06 50.25 57.90 58.63 68.81 76.67 77.97 79.58 73.20 63.77 51.33 47.23 62.45
1983 50.39 53.29 57.74 62.97 70.42 70.87 75.23 78.81 71.93 63.65 53.90 40.19 62.45
1984 48.58 52.66 59.10 57.93 64.81 71.20 80.90 81.06 73.77 59.77 52.47 42.77 62.09
1985 43.16 48.61 54.81 63.27 68.19 75.43 87.48 81.00 70.57 61.65 42.87 39.23 61.35
1986 49.26 50.86 60.48 59.53 67.29 77.40 75.42 86.19 70.67 67.13 53.73 46.35 63.69
1987 45.68 52.68 56.68 64.73 71.13 79.33 77.35 84.10 78.50 71.87 55.60 44.16 65.15
1988 44.35 53.62 56.68 60.63 65.84 73.03 80.90 80.90 76.93 66.81 52.73 47.55 63.33
1989 47.84 43.50 52.65 66.77 67.65 74.90 75.00 75.48 79.70 63.58 55.00 45.94 62.33
1990 48.97 48.71 58.84 64.40 65.65 73.10 83.77 82.10 78.03 62.45 54.43 39.97 63.37
1991 46.61 57.71 54.58 59.50 62.32 68.33 82.42 81.58 81.40 66.84 53.23 47.81 63.53
1992 50.48 56.21 63.74 64.30 76.61 79.47 81.68 82.94 73.50 64.52 52.03 44.03 65.79
1993 42.19 47.25 56.71 59.90 71.26 71.63 72.77 79.65 80.07 67.74 49.20 48.00 62.20
1994 50.10 47.61 60.94 63.70 71.29 73.70 84.61 82.10 79.40 64.42 48.30 47.55 64.48
1995 48.16 54.93 57.55 60.60 71.61 74.07 81.61 78.94 77.57 63.32 57.10 47.42 64.41
1996 45.06 49.24 55.87 61.70 62.68 74.30 84.74 82.19 71.23 61.81 51.17 46.74 62.23
1997 45.68 50.93 54.42 59.40 72.65 71.63 79.32 82.68 75.73 60.74 55.87 46.10 62.93
1998 47.77 51.79 56.19 62.10 62.68 72.33 80.74 82.68 79.07 62.13 53.43 45.52 63.04
1999 47.90 49.25 52.71 60.33 63.90 69.30 78.19 78.48 78.17 65.48 56.00 49.06 62.40
2000 45.13 50.24 53.90 64.13 65.97 76.97 a 78.39 78.65 73.90 63.23 49.50 45.52 62.13
2001 46.81 50.32 56.65 57.93 70.00 b 70.53 77.03 80.13 76.27 62.29 53.70 46.90 62.38
2002 45.61 52.46 52.13 60.93 64.58 74.97 81.71 81.35 76.53 63.74 55.17 48.48 63.14
2003 50.71 51.61 55.80 a 58.20 66.52 77.33 84.68 81.71 78.37 66.00 51.53 47.16 64.13
2004 42.61 51.72 60.42 67.33 68.45 75.77 83.42 82.26 71.23 64.03 51.97 48.19 63.95
2005 47.87 53.75 60.10 60.30 68.45 70.27 81.48 83.29 73.47 62.68 51.03 44.23 63.08
2006 50.13 49.29 53.68 62.87 70.19 76.23 82.48 81.23 77.67 63.48 52.47 45.26 63.75
2007 44.39 50.43 57.71 60.37 69.55 72.13 81.55 78.58 72.80 61.03 52.00 45.48 62.17
2008 43.94 52.41 52.94 56.67 67.48 71.77 80.77 80.00 77.33 62.23 55.10 42.77 61.95
2009 46.19 50.25 52.52 62.33 71.48 74.83 86.55 80.55 77.20 62.32 54.07 41.65 63.33
2010 49.65 54.14 56.84 59.13 63.23 68.77 79.03 79.52 73.00 63.45 50.33 46.65 61.98
2011 47.32 46.50 52.45 56.00 62.55 70.10 76.87 80.48 79.03 61.84 51.33 45.32 60.82
2012 47.32 49.03 52.10 61.50 67.94 69.70 78.19 83.26 78.67 64.19 53.73 46.61 62.69
2013 42.61 50.50 57.23 64.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 50.11
Period of Record Statistics
MEAN 45.20 50.54 55.28 60.72 67.34 72.99 79.87 79.92 75.07 63.61 52.49 46.05 62.45
S.D. 3.99 2.98 2.99 2.86 3.26 3.21 3.38 3.21 3.30 2.68 2.68 2.52 1.36
SKEW -0.98 -0.18 0.43 0.16 0.22 -0.06 -0.28 -0.02 0.08 0.73 -0.68 -0.54 -0.25
MAX 52.03 57.76 63.74 67.33 76.61 79.47 87.48 88.13 81.93 71.87 58.40 51.42 65.79
MIN 32.77 40.86 49.23 55.00 61.10 66.17 72.00 71.65 69.00 57.61 42.87 39.23 58.66
NO YRS 72 72 72 64 64 64 64 64 65 65 72 72 64