FOSTER DAM, OREGON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(353047)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1969 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 37.35 d 38.45 37.90
1970 37.42 36.71 37.65 37.40 43.77 50.67 49.97 47.61 44.70 40.39 38.70 34.42 41.62
1971 33.30 d 35.39 34.48 38.70 44.19 46.80 50.74 52.90 46.30 40.71 37.80 34.23 41.30
1972 32.32 34.86 39.10 37.00 44.10 47.87 50.77 50.74 44.17 39.35 40.50 29.39 40.85
1973 32.23 a 36.68 37.40 a 39.67 43.00 48.73 49.65 45.97 46.57 42.00 38.90 38.61 41.62
1974 28.71 34.25 36.45 38.90 42.23 48.27 51.84 50.52 45.80 37.90 39.63 37.55 41.00
1975 36.65 35.54 35.03 35.30 43.42 46.90 52.23 49.19 44.93 45.87 37.60 36.06 41.56
1976 33.61 32.62 34.00 38.10 42.06 43.70 49.29 51.81 48.53 39.52 38.63 31.71 40.30
1977 27.03 36.11 35.55 38.53 41.84 47.87 48.48 53.65 47.83 42.94 38.60 39.23 41.47
1978 38.52 39.04 39.10 39.77 42.39 50.73 51.45 51.90 49.30 39.55 31.53 30.58 41.99
1979 23.97 36.39 37.97 41.33 43.74 46.93 50.19 50.61 48.83 45.26 35.27 37.48 41.50
1980 29.52 37.00 36.94 41.23 43.13 47.97 50.35 46.97 45.93 40.81 40.10 37.65 41.47
1981 35.97 36.64 38.10 40.93 45.32 48.23 49.84 51.87 47.13 40.71 38.73 38.00 42.62
1982 33.39 33.68 35.16 36.50 40.48 50.40 50.32 50.39 46.73 42.81 35.13 34.32 40.78
1983 37.13 39.25 40.97 39.17 44.42 48.30 52.87 52.45 45.03 41.58 42.23 32.55 43.00
1984 32.42 36.21 40.16 40.27 42.52 46.17 48.87 49.29 45.87 42.74 38.83 31.65 41.25
1985 28.97 30.86 33.03 41.53 43.00 47.17 51.00 47.94 44.27 39.90 31.73 26.74 38.84
1986 36.87 37.46 39.71 38.50 44.61 51.17 48.55 51.45 46.33 42.32 39.73 35.35 42.67
1987 32.68 36.50 38.29 40.40 45.87 47.97 51.55 47.74 45.93 37.42 40.17 35.58 41.67
1988 33.74 33.55 36.68 40.27 43.65 48.67 49.94 47.13 44.03 46.26 41.37 33.61 41.57
1989 35.06 26.89 38.19 42.47 44.39 49.07 50.58 50.55 46.40 41.81 38.27 32.77 41.37
1990 36.06 31.61 37.42 42.00 43.35 50.27 52.74 52.97 49.10 42.13 39.63 26.97 42.02
1991 29.35 38.68 35.48 40.00 42.94 46.13 51.35 51.10 45.40 38.87 40.20 36.45 41.33
1992 35.74 38.21 38.32 43.63 44.52 50.83 51.71 48.26 45.97 43.90 38.30 34.19 42.80
1993 29.68 31.46 39.45 42.13 47.16 49.30 50.87 50.81 44.70 42.97 30.30 33.97 41.07
1994 35.97 33.64 37.32 41.57 45.16 46.67 49.71 49.42 48.00 40.87 34.00 35.87 41.52
1995 36.61 38.46 37.16 39.67 44.35 48.63 53.13 48.84 51.37 42.42 42.63 37.19 43.37
1996 36.68 33.34 37.35 41.67 43.10 46.60 52.35 50.13 45.40 43.10 38.23 37.10 42.09
1997 34.58 34.57 37.87 40.63 46.55 47.93 51.19 52.55 50.70 43.19 41.33 32.39 42.79
1998 39.03 39.61 38.87 39.63 45.48 48.10 54.81 50.10 47.87 42.32 41.87 33.06 43.40
1999 35.23 a 37.11 35.32 37.77 41.26 47.83 49.13 53.35 43.27 38.97 41.87 35.77 41.41
2000 33.74 37.45 34.87 40.53 45.23 48.43 49.23 47.42 47.60 41.90 33.03 35.77 41.27
2001 34.48 32.71 37.10 38.47 42.74 44.97 49.61 50.81 45.90 41.23 39.70 35.45 41.10
2002 35.35 34.61 33.97 38.50 40.97 47.30 50.42 46.13 44.53 37.74 36.43 38.06 40.33
2003 38.58 33.39 40.65 39.73 43.06 47.77 49.90 49.35 46.73 46.52 36.77 36.55 42.42
2004 35.58 36.21 38.19 39.90 45.68 49.17 51.48 53.32 47.43 43.19 35.20 35.06 42.54
2005 34.13 29.79 38.81 39.43 46.29 46.47 50.94 48.16 42.43 44.06 35.60 33.29 40.78
2006 37.13 31.21 34.71 37.50 41.35 49.10 51.52 46.32 43.40 36.97 37.43 31.13 39.81
2007 26.97 33.07 36.16 36.77 39.32 45.37 51.52 47.68 42.50 39.81 32.17 32.90 38.69
2008 27.87 31.41 32.77 34.27 43.06 42.93 47.87 ----- z 42.63 39.26 37.97 31.68 37.43
2009 30.29 31.21 34.10 36.97 ----- z 48.87 51.26 49.23 48.52 e 39.55 37.00 28.68 39.61
2010 39.65 e 37.00 34.90 38.33 42.58 47.10 49.65 e 48.87 48.73 42.84 38.30 36.74 42.06
2011 34.23 32.64 37.90 36.41 a 41.32 47.63 47.45 48.97 48.97 44.45 35.93 28.77 40.39
2012 32.42 33.93 33.45 40.83 40.42 46.17 50.23 48.81 43.23 41.06 41.13 36.74 40.70
2013 31.26 34.14 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 32.70
Period of Record Statistics
MEAN 33.64 34.80 36.89 39.36 43.43 47.84 50.62 49.84 46.26 41.56 37.86 34.31 41.47
S.D. 3.61 2.82 2.11 2.01 1.76 1.78 1.45 2.12 2.19 2.34 3.01 3.16 1.04
SKEW -0.62 -0.42 -0.13 -0.31 -0.06 -0.42 0.28 0.03 0.20 0.12 -0.71 -0.65 -0.49
MAX 39.65 39.61 40.97 43.63 47.16 51.17 54.81 53.65 51.37 46.52 42.63 39.23 43.40
MIN 23.97 26.89 32.77 34.27 39.32 42.93 47.45 45.97 42.43 36.97 30.30 26.74 38.69
NO YRS 44 44 43 43 42 43 43 42 43 43 44 44 41