DALLESPORT FCWOS AP, WASHINGTON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(451968)

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 55.97 57.32 48.70 38.52 34.07 26.03 43.43
1949 12.48 27.93 36.45 41.60 50.00 51.63 57.16 57.65 51.03 38.10 37.70 32.03 41.15
1950 11.32 23.75 35.16 38.67 44.90 53.63 58.81 58.90 50.53 43.06 35.93 35.90 40.88
1951 28.68 29.82 32.68 39.53 46.45 53.13 57.87 55.71 49.77 40.94 32.67 26.39 41.14
1952 21.42 29.41 34.74 38.52 a 46.65 52.23 57.26 57.06 50.23 42.74 27.50 31.65 40.78
1953 37.19 35.04 37.03 40.70 43.97 50.47 56.90 57.63 a 51.00 41.97 35.77 34.00 43.47
1954 24.90 33.86 31.42 39.93 46.81 50.70 54.81 55.77 50.63 38.77 39.87 28.52 41.33
1955 30.42 29.68 30.97 37.13 45.10 53.53 55.87 55.94 50.23 42.13 30.47 27.90 40.78
1956 27.90 24.00 35.84 42.17 49.68 50.93 58.74 57.23 51.70 41.39 33.23 31.94 42.06
1957 14.13 28.82 36.52 44.33 52.32 56.23 57.48 56.13 53.43 42.71 31.43 32.68 42.19
1958 32.87 38.29 33.10 40.33 52.03 58.97 62.68 62.65 52.93 41.03 35.57 33.94 45.36
1959 30.39 33.68 36.42 41.40 43.77 53.53 57.97 56.52 50.87 43.06 29.33 29.48 42.20
1960 19.65 29.52 33.00 39.83 44.06 52.43 60.00 55.68 48.70 41.55 32.23 25.81 40.20
1961 28.94 34.36 35.48 40.17 a 45.81 55.03 a 57.90 61.39 47.67 37.81 30.27 29.90 42.06
1962 24.71 31.00 32.06 41.67 46.52 52.43 57.58 57.87 50.77 43.16 38.13 33.68 42.47
1963 22.58 34.68 35.13 40.40 47.39 55.83 56.71 58.68 55.80 44.06 36.90 29.00 43.10
1964 31.45 30.10 33.29 38.80 44.06 52.73 57.61 55.97 48.67 40.13 34.97 25.29 41.09
1965 31.48 34.71 31.48 42.07 46.03 53.33 58.45 59.03 48.50 43.26 38.77 28.55 42.97
1966 30.58 33.11 34.06 41.00 45.81 52.30 58.68 59.13 53.57 42.10 38.00 34.06 43.53
1967 35.87 34.61 34.77 38.37 49.26 58.30 63.00 64.16 57.10 44.68 36.23 33.58 45.83
1968 31.26 36.52 41.45 44.20 52.84 54.50 59.97 57.94 52.50 40.00 36.57 27.90 44.64
1969 17.39 29.36 33.58 39.63 49.06 58.40 58.61 57.39 53.17 39.35 35.83 33.32 42.09
1970 27.61 33.75 35.13 38.70 46.97 57.13 60.29 58.45 48.60 39.94 35.10 29.06 42.56
1971 33.13 32.46 33.10 39.00 49.35 52.30 60.03 61.77 47.87 41.39 33.53 28.00 42.66
1972 26.97 29.97 36.42 35.93 47.13 53.83 57.61 58.48 47.10 37.68 38.00 19.65 40.73
1973 25.94 31.54 35.74 40.43 46.84 53.63 61.03 57.19 51.40 44.19 33.87 33.97 42.98
1974 24.39 33.46 36.10 42.33 46.19 55.50 58.03 59.90 50.80 40.26 39.00 34.26 43.35
1975 31.13 30.14 34.32 38.30 46.77 53.80 62.52 57.19 50.30 45.77 34.20 34.35 43.23
1976 32.42 30.76 32.45 39.60 46.23 51.13 58.39 57.65 53.87 40.32 36.57 27.94 42.28
1977 25.00 33.71 36.13 42.40 45.71 58.50 60.65 63.97 50.77 42.10 32.27 33.39 43.72
1978 31.16 35.36 37.52 41.60 46.87 55.83 60.42 60.32 52.30 42.06 28.97 26.65 43.25
1979 12.13 30.07 37.29 43.30 50.03 55.53 60.32 60.55 53.87 46.48 34.83 34.35 43.23
1980 21.10 32.14 36.81 42.43 49.35 52.33 60.26 57.06 51.60 41.61 37.90 33.39 43.00
1981 37.10 31.79 36.52 39.90 48.74 52.93 57.35 58.93 c 50.03 39.03 33.53 31.48 43.11
1982 30.03 a 29.96 35.06 36.80 47.39 57.13 60.48 60.90 53.43 42.87 32.43 31.45 43.16
1983 34.35 37.11 41.81 41.30 50.03 53.20 57.77 60.19 49.17 43.87 41.27 22.39 44.37
1984 30.48 34.03 39.55 41.63 45.23 53.20 59.29 59.58 51.13 43.26 37.30 28.81 43.62
1985 30.10 28.86 34.68 42.20 49.68 55.37 66.32 57.71 48.10 41.55 24.87 21.26 41.72
1986 29.84 33.00 40.06 39.60 49.77 57.53 57.45 61.26 50.53 42.39 38.20 31.19 44.24
1987 27.94 34.68 37.90 43.37 50.48 55.50 59.97 57.71 52.33 40.71 35.73 31.26 43.96
1988 29.06 31.55 35.61 43.53 47.23 54.17 59.00 56.90 50.83 47.00 38.67 32.39 43.83
1989 33.29 21.82 36.19 44.10 48.39 56.00 58.97 59.52 49.60 42.74 39.43 32.23 43.52
1990 34.52 30.50 35.90 44.73 47.32 54.63 61.23 61.68 55.00 43.06 38.33 21.65 44.05
1991 26.74 34.86 34.87 41.37 47.94 52.13 59.03 61.68 51.40 41.65 37.77 34.61 43.67
1992 34.35 38.07 38.23 44.07 49.16 57.57 61.68 59.35 52.67 44.84 38.37 26.81 45.43
1993 21.90 25.57 34.55 41.77 50.94 54.83 57.03 56.90 49.97 44.03 25.73 33.00 41.35
1994 33.52 28.68 35.23 44.97 50.48 53.60 62.68 61.26 54.27 42.90 34.80 32.48 44.57
1995 31.19 35.89 36.16 41.20 50.65 55.33 62.29 57.06 54.07 42.10 39.30 33.42 44.89
1996 30.68 26.69 37.39 43.57 46.65 53.90 60.65 58.58 49.77 43.97 34.17 29.52 42.96
1997 29.68 34.04 37.39 43.30 51.45 55.73 60.81 62.23 54.40 43.39 38.10 34.19 45.39
1998 31.10 37.43 38.68 42.70 51.84 56.13 64.06 60.97 54.80 39.55 39.90 30.23 45.62
1999 35.23 35.14 36.45 40.50 46.42 55.67 58.71 63.61 49.23 40.06 39.23 35.58 44.65
2000 30.52 33.34 35.87 42.53 49.03 54.37 59.42 ----- z ----- z 43.06 31.43 31.74 41.13
2001 32.00 31.29 36.87 39.73 47.97 53.50 60.48 61.19 53.63 42.61 36.20 32.97 44.04
2002 32.97 30.71 33.84 40.80 47.61 56.20 61.16 58.23 50.60 38.23 32.30 35.32 43.16
2003 37.52 32.14 39.90 41.13 47.65 55.67 61.68 60.32 53.53 45.55 31.73 32.48 44.94
2004 26.87 32.41 37.40 z 42.20 49.97 55.10 62.39 62.68 52.50 45.52 36.20 32.77 45.33
2005 31.10 26.11 36.06 41.93 49.94 52.70 60.10 58.52 50.33 44.03 34.23 26.58 42.64
2006 33.97 27.79 35.03 39.93 47.61 55.57 61.10 56.84 50.07 40.16 34.97 30.19 42.77
2007 27.58 33.46 37.94 40.80 46.90 53.97 63.23 58.13 51.43 39.97 32.27 30.90 43.05
2008 26.42 33.72 33.42 35.93 50.10 52.17 59.42 58.68 48.63 40.90 37.63 24.39 41.78
2009 30.74 30.29 34.06 39.63 46.90 57.07 61.55 60.71 51.80 42.03 33.60 24.26 42.72
2010 34.55 35.50 35.68 41.40 46.90 53.93 59.32 59.35 54.03 43.87 35.17 32.74 44.37
2011 32.42 29.36 35.29 39.40 45.94 53.57 57.26 60.81 52.97 46.29 34.20 28.35 42.99
2012 28.26 32.76 35.06 41.80 47.39 53.47 60.61 60.03 51.93 43.52 40.13 33.03 44.00
2013 29.42 32.82 36.42 49.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 32.89
Period of Record Statistics
MEAN 28.65 31.80 35.68 40.97 47.93 54.40 59.57 59.06 51.38 42.11 35.12 30.40 43.08
S.D. 5.92 3.43 2.23 2.05 2.18 2.01 2.17 2.16 2.15 2.19 3.50 3.78 1.35
SKEW -1.25 -0.57 0.38 -0.29 0.22 0.27 0.45 0.45 0.27 -0.01 -0.75 -0.89 -0.05
MAX 37.52 38.29 41.81 44.97 52.84 58.97 66.32 64.16 57.10 47.00 41.27 35.90 45.83
MIN 11.32 21.82 30.97 35.93 43.77 50.47 54.81 55.68 47.10 37.68 24.87 19.65 40.20
NO YRS 65 65 64 64 64 64 65 64 64 65 65 65 62