TROUTDALE SUBSTATION, OREGON

Monthly Average Temperature (Degrees Fahrenheit)

(358634)

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
1948 ----- z ----- z ----- z ----- z ----- z ----- z 65.42 64.68 a 60.28 52.71 42.97 37.05 53.85
1949 27.82 39.41 46.20 a 52.33 59.27 60.90 65.37 66.23 63.08 48.76 51.67 40.68 a 51.81
1950 25.68 38.07 44.48 48.79 a 54.47 61.77 66.13 68.48 61.35 52.20 a 46.52 45.24 51.10
1951 39.10 42.21 42.00 54.65 57.29 63.23 67.42 65.66 64.43 53.42 45.45 37.98 52.74
1952 35.29 41.05 a 44.02 51.78 57.00 59.83 67.81 67.90 a 64.91 a 60.89 42.70 41.32 52.88
1953 47.82 a 43.79 45.90 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 49.90 a 43.97 46.27
1954 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1955 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1956 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1957 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1958 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1959 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 65.22 f 59.82 54.31 44.21 a 40.95 49.82
1960 33.52 42.37 b 44.16 51.00 53.73 a 61.68 67.52 64.34 61.08 54.68 46.32 40.20 f 52.76
1961 43.02 a 46.66 47.18 49.85 56.63 a 65.46 c 68.42 70.32 a 59.62 52.74 42.73 40.62 a 53.60
1962 38.56 41.62 44.13 53.18 53.19 61.18 66.12 e 65.95 63.13 54.66 48.83 42.90 52.79
1963 34.69 46.75 46.50 48.82 56.94 60.33 62.38 r 65.89 64.65 55.44 47.82 40.06 51.63
1964 42.08 42.24 45.26 48.33 53.06 59.32 64.88 g 64.22 d 59.78 56.00 43.18 38.47 50.18
1965 40.65 43.68 49.27 52.43 54.48 61.53 a 69.39 c 69.24 61.42 57.50 b 50.30 40.03 54.16
1966 41.73 43.18 46.90 53.67 57.81 62.08 65.56 67.23 63.37 53.21 47.67 44.79 53.93
1967 46.03 44.89 45.34 48.62 57.57 b 66.13 69.34 72.95 67.20 55.95 48.07 41.24 55.28
1968 40.45 48.60 50.24 50.00 57.13 62.87 68.63 66.60 62.66 a 53.91 b 47.50 40.34 f 55.33
1969 31.59 b 40.82 48.52 52.08 60.08 66.75 66.69 65.84 63.47 53.13 a 48.12 42.55 53.30
1970 39.48 47.04 47.26 48.60 56.53 a 65.77 68.34 68.40 60.13 53.10 47.63 40.11 53.53
1971 41.08 44.20 43.47 49.92 57.27 59.18 68.03 70.56 60.63 52.48 45.87 40.44 52.76
1972 38.44 42.45 a 48.82 47.57 59.08 62.78 69.69 69.87 a 59.42 d 52.77 48.03 a 36.48 52.95
1973 38.69 43.95 47.97 52.15 59.53 b 63.17 68.85 65.13 63.50 b 53.88 a 43.97 45.23 53.83
1974 37.15 43.14 46.90 51.40 55.15 a 64.22 67.03 a 68.89 67.21 b 55.65 48.59 a 45.18 54.21
1975 42.16 41.18 45.50 c 47.70 57.73 62.25 68.13 65.05 66.12 54.47 46.32 43.08 53.31
1976 43.19 44.07 a 45.03 51.13 57.66 60.83 67.37 65.23 64.15 54.89 49.40 41.27 53.69
1977 36.95 45.23 46.71 53.67 54.35 64.67 66.40 71.85 60.85 55.32 43.68 43.24 53.58
1978 39.65 46.00 49.40 52.03 ----- z 66.13 68.39 67.45 61.55 57.26 41.02 37.97 53.35
1979 28.69 40.98 49.68 51.95 58.71 64.87 69.50 67.15 65.47 57.39 44.98 43.79 53.60
1980 35.13 a 42.00 46.47 54.18 56.38 g 60.56 f 68.26 d 64.63 e 62.16 e 54.38 f 48.00 f 42.90 g 53.26
1981 44.77 e 43.83 e 49.87 d 51.23 f 57.04 h 62.00 d 66.63 e 70.54 g 63.50 f 53.50 e 49.98 f 43.52 f 53.43
1982 39.03 42.86 46.85 49.68 57.39 64.85 65.81 67.44 62.92 54.92 44.70 40.90 53.11
1983 43.08 a 46.18 50.21 52.12 a 62.31 m 60.90 65.29 67.84 60.91 a 53.29 b 49.78 34.57 a 53.11
1984 41.48 44.40 50.90 50.42 56.15 60.55 a 67.89 68.37 62.12 52.23 a 46.65 37.82 53.25
1985 35.17 a 39.68 44.94 52.13 57.58 63.22 72.19 67.05 59.35 52.61 37.66 a 31.78 b 51.11
1986 40.74 45.58 o 51.60 k 50.70 54.53 m 66.86 a 65.03 m 72.71 j 60.68 55.59 i 46.97 39.02 50.83
1987 38.76 45.14 48.15 a 55.22 60.40 66.10 66.69 69.03 64.59 a 57.71 49.12 38.65 54.96
1988 38.45 44.02 47.62 a 52.13 56.71 62.08 67.84 66.21 62.38 58.03 48.15 42.47 53.84
1989 42.65 34.41 45.32 55.55 58.24 65.45 63.40 ----- z 62.15 52.79 49.73 d 40.98 51.88
1990 45.16 42.71 50.39 54.75 b 56.71 64.10 70.82 71.18 66.88 53.44 48.92 35.05 55.01
1991 39.87 a ----- z 46.35 51.97 54.60 59.37 69.45 70.13 66.77 56.06 47.38 42.02 54.91
1992 44.00 48.57 52.23 55.58 62.81 67.33 70.16 70.95 j 61.85 55.11 45.83 37.37 54.62
1993 34.87 39.88 47.66 52.58 62.00 62.80 64.68 68.90 65.50 58.06 40.22 40.29 53.12
1994 44.53 40.38 50.95 54.47 61.40 62.42 71.31 69.56 67.60 53.95 42.22 41.35 55.01
1995 41.24 47.94 a 49.21 51.75 61.50 64.18 70.63 67.16 ----- z 55.32 50.38 43.85 n 55.93
1996 40.79 l 40.84 j 48.78 k 52.88 i 53.72 o 62.68 k 70.53 p 68.29 l 60.12 q 55.05 k 43.87 k 39.79 n 9999.00
1997 39.68 l 43.70 m 45.07 q 50.61 k 62.55 j 64.03 m 66.96 q 71.56 n 65.27 o 52.53 k 47.00 m 41.53 k 9999.00
1998 41.19 o 44.87 i 48.50 l 52.45 i 55.69 m 62.11 k 72.08 l 72.00 q 65.68 s 56.19 m 49.50 m 41.75 q 9999.00
1999 43.21 n 43.71 p 45.50 q 49.50 p 55.56 v 60.97 m 67.83 m 71.21 s 63.00 z 54.48 50.02 44.95 49.82
2000 40.16 43.57 45.94 53.80 58.02 64.03 67.23 67.15 63.15 54.77 42.33 39.98 a 53.34
2001 40.65 41.59 47.92 50.10 58.32 61.23 66.44 68.23 63.80 52.94 47.88 42.26 53.45
2002 41.47 45.16 45.44 52.55 55.56 63.82 e 68.02 68.05 63.72 53.97 43.85 43.03 53.72
2003 44.60 43.30 48.55 50.97 56.77 65.28 70.69 69.26 64.62 e 58.29 44.05 40.03 54.70
2004 35.74 42.14 50.55 55.00 59.15 64.53 70.56 66.75 s 59.88 m 54.73 45.25 ----- z 53.07
2005 ----- z 41.30 48.50 50.93 58.31 59.50 67.50 67.66 59.28 54.18 42.68 36.65 53.32
2006 42.97 39.80 44.44 51.10 ----- z 62.27 67.55 64.52 61.33 49.77 41.83 ----- z 52.56
2007 ----- z 39.82 45.27 c 47.20 53.13 58.00 65.74 66.74 61.05 51.84 44.72 39.76 52.12
2008 37.21 43.60 44.02 47.18 56.50 59.28 66.56 67.84 62.48 52.50 48.50 36.87 51.88
2009 38.48 41.02 43.63 49.92 57.52 63.43 70.19 67.77 64.90 52.58 46.40 35.65 52.62
2010 43.55 44.93 48.03 49.85 53.24 58.73 65.26 66.16 62.42 55.05 46.37 g 40.66 53.44
2011 41.16 39.75 45.42 46.08 k 52.63 59.88 64.21 67.52 64.93 54.45 44.00 38.55 52.05
2012 39.48 42.00 43.95 a 52.66 a 55.56 59.50 65.76 68.90 63.23 54.58 47.50 a 41.81 52.91
2013 36.29 42.46 48.17 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 42.31
Period of Record Statistics
MEAN 39.32 42.94 47.00 51.49 57.13 62.67 67.69 67.60 62.89 54.41 46.11 40.34 53.38
S.D. 4.49 2.71 2.33 2.24 2.44 2.42 1.96 2.01 2.26 2.13 2.98 2.99 1.00
SKEW -0.93 -0.22 0.15 -0.06 0.16 0.05 0.14 0.42 0.30 0.37 -0.47 -0.47 -0.36
MAX 47.82 48.60 52.23 55.58 62.81 67.33 72.19 72.95 67.60 60.89 51.67 45.24 55.28
MIN 25.68 34.41 42.00 47.18 52.63 58.00 63.40 64.22 59.28 48.76 37.66 31.78 51.10
NO YRS 53 53 54 51 47 52 51 49 52 54 54 50 34