PELTON DAM, OREGON

Monthly Average Temperature (Degrees Fahrenheit)

(356532)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1958 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 75.94 g 60.90 o 55.71 e 41.80 e 40.87 46.13
1959 38.34 39.82 45.11 52.73 54.00 65.57 73.27 68.63 61.32 53.52 40.85 35.13 52.36
1960 28.23 39.02 45.39 51.82 54.92 66.93 74.47 68.10 63.65 53.26 41.96 d 34.37 51.84
1961 40.26 45.05 46.13 50.72 56.66 69.72 72.92 74.74 60.03 51.19 38.43 37.11 53.58
1962 32.84 38.95 43.21 54.00 53.98 63.83 70.06 68.05 64.43 51.02 45.05 37.85 51.94
1963 30.29 44.88 44.52 47.37 57.69 62.73 67.98 69.48 67.37 53.82 44.10 34.02 52.02
1964 38.63 38.98 42.00 48.33 55.97 64.28 71.73 68.52 61.53 52.68 39.70 34.22 a 51.38
1965 38.05 42.96 43.95 52.88 56.16 65.08 71.95 69.65 63.33 z 53.58 k 44.92 39.06 o 53.96
1966 36.73 t 39.78 a 45.37 51.85 59.97 63.63 69.76 70.24 65.45 53.82 44.55 39.26 54.88
1967 41.50 43.55 43.50 45.47 58.24 66.47 72.77 75.19 68.15 54.44 44.12 35.87 54.11
1968 37.24 43.34 48.02 49.47 57.52 65.50 73.55 68.40 63.92 51.40 42.73 34.79 52.99
1969 26.21 35.73 44.21 49.67 61.39 67.60 69.90 69.18 63.95 49.23 43.60 35.98 51.39
1970 35.68 41.41 44.85 45.83 58.66 68.30 72.40 71.34 58.85 50.29 41.92 37.08 52.22
1971 38.95 39.43 41.16 48.87 58.95 62.25 73.03 74.98 60.23 50.00 42.37 37.47 52.31
1972 35.24 39.98 47.84 47.40 60.61 67.10 72.50 72.00 59.78 50.90 44.00 29.37 52.23
1973 33.37 40.55 43.89 51.27 60.53 65.98 73.13 69.27 a 63.30 52.95 41.58 41.56 53.12
1974 31.21 42.12 45.37 50.53 55.63 69.52 71.71 b 72.10 65.82 52.85 44.52 38.98 53.36
1975 39.40 36.71 41.63 45.17 56.97 63.15 74.06 67.63 64.80 53.27 42.38 39.98 52.10
1976 38.97 39.31 42.39 48.62 58.90 61.57 72.32 68.94 67.02 53.52 45.03 a 34.69 52.61
1977 31.05 42.12 43.66 54.67 53.97 68.45 70.00 73.48 60.85 52.94 39.80 38.73 52.48
1978 36.13 42.59 48.24 50.03 54.81 65.82 71.03 69.31 60.33 54.15 35.27 32.55 51.69
1979 18.66 38.82 47.27 50.37 59.68 66.25 72.40 70.13 66.13 60.59 o 38.17 g 41.00 53.07
1980 32.55 b 39.60 ----- z 52.50 57.40 61.57 72.24 ----- z 63.62 52.94 44.43 44.53 m 52.98
1981 38.55 40.89 46.37 50.92 57.48 63.42 69.81 73.69 62.90 i 52.08 a 44.10 38.03 52.30
1982 34.61 38.98 44.48 47.70 56.94 67.18 70.68 70.73 61.23 51.29 38.97 35.65 51.54
1983 40.06 43.12 47.68 49.53 59.19 62.88 67.68 72.45 60.00 n 53.84 45.30 27.48 51.75
1984 35.29 42.12 47.66 48.25 57.02 62.67 72.94 72.39 61.93 49.26 41.45 33.19 52.01
1985 32.06 38.27 43.48 53.68 58.55 66.70 77.03 69.94 58.27 52.03 31.52 24.37 50.49
1986 37.33 a 40.89 a 50.18 48.72 59.48 a 70.00 68.08 74.90 58.70 53.77 43.95 35.60 53.47
1987 34.40 41.71 b 47.02 56.42 62.03 69.95 a 69.72 a 71.39 66.28 55.77 43.23 36.12 a 54.50
1988 33.74 b 42.34 a 45.52 54.40 58.74 65.67 a 72.53 70.98 63.57 60.98 44.08 36.35 54.08
1989 40.50 30.38 44.87 55.22 57.98 67.30 70.77 69.31 64.00 53.39 45.55 35.85 52.93
1990 41.29 40.14 47.84 57.47 57.63 67.03 75.56 73.74 69.53 53.69 45.97 29.40 54.94
1991 35.32 47.23 45.44 50.93 56.74 63.08 74.79 75.47 67.90 54.89 45.03 38.89 54.64
1992 41.39 46.00 50.10 54.93 65.03 ----- z 73.55 73.81 65.57 55.61 43.17 33.05 54.75
1993 27.89 32.18 45.31 50.57 63.35 64.68 65.66 69.76 65.30 56.44 34.67 37.42 51.10
1994 40.68 38.41 47.79 55.32 62.03 66.75 75.52 71.92 68.20 53.53 41.28 38.23 54.97
1995 37.08 45.50 45.44 50.35 59.61 64.70 72.39 68.94 66.55 52.31 47.43 37.05 53.94
1996 37.73 37.62 46.40 53.05 55.92 65.45 74.10 72.31 61.73 53.16 41.93 36.88 a 53.02
1997 34.37 39.21 47.61 50.63 62.76 61.70 70.24 74.39 66.00 52.77 44.90 35.69 53.36
1998 38.63 43.73 47.52 51.77 57.32 66.43 77.26 75.37 ----- z 53.29 46.25 38.32 54.17
1999 40.74 42.80 44.84 50.18 56.39 65.25 73.08 75.37 64.53 54.87 47.95 39.84 54.65
2000 35.45 j 41.69 45.40 55.78 60.00 68.60 73.42 73.00 66.43 54.71 38.28 35.77 55.74
2001 36.48 39.50 47.68 49.71 a 63.89 64.90 72.26 75.47 68.90 54.52 45.07 a 37.16 54.63
2002 38.85 42.66 43.21 52.27 56.63 66.02 74.37 69.65 64.27 49.29 41.22 38.42 53.07
2003 41.95 39.05 47.89 48.42 58.65 68.38 76.45 73.40 66.67 58.13 39.50 37.23 54.64
2004 29.98 40.16 49.27 52.72 57.56 66.65 74.32 73.27 63.05 54.27 42.45 39.06 53.56
2005 35.56 38.29 47.92 50.60 59.35 60.57 72.81 72.40 61.68 52.74 39.45 27.45 51.57
2006 39.92 35.46 41.47 50.10 57.85 65.70 75.00 70.15 63.17 50.68 42.48 34.60 52.21
2007 31.82 38.41 47.45 48.47 58.66 64.83 75.90 69.74 62.35 50.05 a 40.04 b 37.23 52.08
2008 ----- z 41.61 f 41.71 44.97 57.56 62.97 a 73.06 71.58 63.43 ----- z 44.85 30.63 54.53
2009 34.95 36.75 41.00 48.45 58.19 66.08 75.10 72.65 66.57 48.56 42.32 29.98 51.72
2010 39.50 40.39 44.68 47.53 53.89 61.47 71.89 70.27 63.48 53.02 41.35 35.28 a 51.90
2011 37.24 37.26 a 43.73 45.85 52.94 61.62 a 68.00 72.58 67.10 53.00 41.68 33.81 51.23
2012 37.79 37.98 43.03 51.13 56.97 62.38 73.06 73.34 65.73 52.61 44.18 36.71 52.91
2013 31.08 38.68 45.05 55.50 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 23.00 z 38.27
Period of Record Statistics
MEAN 35.76 40.23 45.42 50.66 58.13 65.33 72.41 71.58 64.05 53.05 42.46 35.69 52.79
S.D. 4.57 3.14 2.30 2.96 2.59 2.43 2.44 2.32 2.81 2.25 3.08 3.59 1.18
SKEW -1.23 -0.45 -0.02 0.16 0.45 -0.01 -0.44 0.16 -0.17 0.65 -1.20 -1.06 0.30
MAX 41.95 47.23 50.18 57.47 65.03 70.00 77.26 75.47 69.53 60.98 47.95 41.56 54.97
MIN 18.66 30.38 41.00 44.97 52.94 60.57 65.66 67.63 58.27 48.56 31.52 24.37 50.49
NO YRS 52 54 54 54 54 53 54 53 50 52 54 53 44