PORTLAND WB CITY, OREGON

Monthly Average Temperature (Degrees Fahrenheit)

(356749)

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
1973 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 64.63 64.28 54.26 44.02 44.92 54.42
1974 38.03 42.75 47.10 51.33 55.18 64.55 67.45 68.40 69.02 56.55 48.42 44.00 54.40
1975 41.81 41.43 45.27 47.70 58.06 61.35 68.32 64.19 67.18 53.81 46.12 43.68 53.24
1976 43.39 42.62 45.19 51.58 57.90 60.90 67.44 65.69 64.90 56.10 49.40 41.29 53.87
1977 38.55 46.71 45.39 54.92 54.13 65.05 66.16 71.92 61.68 55.76 44.62 ----- z 54.99
1978 42.19 47.29 52.00 51.95 b 56.90 67.28 69.73 68.17 a 61.73 57.69 41.80 37.55 54.52
1979 31.42 42.34 51.45 52.92 59.92 64.90 70.48 ----- z ----- z ----- z 45.27 45.19 d 51.54
1980 36.39 44.47 46.66 54.97 57.69 60.10 68.68 66.06 63.92 56.74 48.35 44.71 54.06
1981 45.53 44.86 49.53 52.83 57.63 61.95 67.65 72.13 64.08 53.56 48.65 42.60 55.08
1982 39.66 43.16 47.06 49.42 57.97 65.00 65.81 68.16 63.02 54.69 43.70 41.21 53.24
1983 44.35 47.11 50.63 52.95 60.77 61.33 65.66 68.31 61.68 54.79 48.07 35.74 54.28
1984 43.40 45.95 50.74 50.07 55.69 60.62 67.81 67.69 62.55 52.08 45.60 37.87 53.34
1985 37.44 ----- z 45.21 53.43 57.39 63.18 71.94 67.29 60.13 53.32 ----- z 35.00 54.43
1986 45.05 44.91 52.47 50.60 57.12 a 66.32 64.31 71.95 60.70 57.53 47.82 41.58 55.03
1987 41.23 46.75 49.47 55.10 60.37 65.98 66.03 70.23 66.05 59.77 49.40 39.48 55.82
1988 39.61 46.00 47.76 52.92 56.15 62.27 68.34 67.89 64.33 59.05 46.82 42.10 54.44
1989 42.44 36.29 46.00 56.70 57.97 64.75 64.77 65.55 65.87 55.19 48.35 40.95 53.74
1990 43.32 41.77 50.35 54.72 ----- z 63.02 70.52 70.13 67.13 53.24 48.07 34.85 54.28
1991 41.06 50.48 46.11 50.82 54.23 59.42 ----- z 68.90 67.73 56.08 47.67 43.16 53.24
1992 45.26 49.55 53.77 55.57 63.97 66.98 70.68 70.61 63.33 57.08 46.98 39.23 56.92
1993 37.15 41.04 49.00 52.00 61.27 61.98 63.16 68.16 65.83 57.84 40.88 41.40 53.31
1994 44.76 41.61 50.85 53.93 59.81 61.55 69.65 68.42 66.77 54.21 41.85 42.98 54.70
1995 44.05 47.64 48.65 51.27 60.35 63.27 69.52 66.15 66.72 54.61 52.25 43.02 55.62
1996 41.03 42.47 48.53 53.62 54.79 62.97 71.23 69.74 61.32 54.15 45.77 42.06 53.97
1997 41.65 44.34 47.52 51.72 62.76 62.60 68.16 71.23 65.67 53.89 50.47 42.00 55.17
1998 43.10 46.95 49.58 53.18 56.03 63.05 70.37 70.27 67.03 54.84 48.43 40.81 55.30
1999 42.82 44.11 45.87 50.69 a 54.43 b 60.62 b 66.58 68.41 b 65.17 55.81 50.73 50.07 a 54.61
2000 40.61 45.02 46.58 54.70 57.21 65.06 d 68.03 b 67.23 63.55 55.23 43.81 a 41.19 54.02
2001 42.45 a 43.18 48.65 49.95 59.76 60.58 65.89 68.82 64.97 54.44 48.86 a 42.53 54.17
2002 41.95 45.54 44.98 52.60 55.56 64.15 69.85 68.92 65.18 54.65 48.93 44.29 54.72
2003 46.66 45.07 49.03 50.55 57.61 66.23 70.98 69.56 66.73 57.29 b 44.98 42.52 55.60
2004 38.52 c 45.90 51.66 56.15 59.29 65.17 70.84 71.10 62.77 56.81 46.35 43.73 55.69
2005 44.32 45.50 51.47 52.55 60.18 61.20 69.40 70.34 63.27 55.77 44.93 40.52 54.95
2006 45.37 43.36 46.42 53.25 ----- z 65.90 70.37 68.76 65.52 ----- z 47.00 ----- z 56.22
2007 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2008 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
2009 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 66.07 54.15 47.77 37.85 51.46
2010 46.68 48.09 49.15 50.97 54.98 59.82 67.21 69.70 f 63.97 55.98 45.28 42.98 53.19
2011 42.19 40.55 46.44 47.63 53.56 61.33 65.73 69.02 a 67.75 b 54.73 45.02 39.62 a 52.80
2012 42.00 a 43.48 44.79 52.98 56.95 60.57 66.63 69.63 65.12 a 55.84 48.48 42.05 54.04
2013 37.89 44.23 56.30 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 41.06
Period of Record Statistics
MEAN 41.71 44.51 48.37 52.45 57.75 63.08 68.15 68.68 64.67 55.49 46.78 41.52 54.51
S.D. 3.23 2.76 2.47 2.17 2.55 2.24 2.22 2.01 2.17 1.68 2.56 3.04 0.93
SKEW -0.90 -0.38 0.28 -0.20 0.42 0.19 -0.24 -0.34 -0.22 0.52 -0.33 -0.14 0.32
MAX 46.68 50.48 53.77 56.70 63.97 67.28 71.94 72.13 69.02 59.77 52.25 50.07 56.92
MIN 31.42 36.29 44.79 47.63 53.56 59.42 63.16 64.19 60.13 52.08 40.88 34.85 52.80
NO YRS 37 36 36 36 34 36 35 35 37 36 37 36 29