COTTAGE GROVE DAM, OREGON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(351902)

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
1943 ----- z ----- z ----- z ----- z ----- z ----- z 50.50 y 50.97 49.37 45.87 39.07 33.00 43.65
1944 32.23 34.59 34.19 39.73 43.42 48.83 50.65 50.26 49.17 45.71 36.23 32.58 41.47
1945 34.94 35.29 34.87 37.77 46.74 46.83 50.19 50.68 45.93 41.87 39.03 34.42 41.55
1946 32.23 32.64 35.61 38.90 43.74 49.43 51.97 50.90 48.40 39.35 36.27 35.42 41.24
1947 30.90 34.79 38.42 42.33 46.26 50.34 a 53.48 52.32 49.43 47.77 40.53 34.06 43.39
1948 30.03 31.34 35.58 37.93 45.45 53.07 51.06 52.32 47.37 44.00 a 33.30 28.84 40.86
1949 21.10 a 32.14 38.29 38.07 46.37 a 47.10 50.00 51.52 50.73 38.71 38.07 31.16 40.27
1950 26.03 31.61 34.52 36.30 40.68 48.90 49.55 52.27 a 49.72 a 45.81 41.07 41.68 41.51
1951 33.03 34.21 34.65 40.50 45.03 46.83 50.71 48.81 44.40 39.61 36.13 33.10 40.58
1952 30.71 33.00 34.81 37.63 42.10 46.73 48.52 51.10 48.03 43.61 29.60 34.42 40.02
1953 39.58 34.96 34.45 38.63 41.65 44.47 49.06 52.13 48.90 42.48 42.90 37.19 42.20
1954 35.23 35.64 32.74 39.00 42.97 46.57 47.87 49.00 46.60 40.58 41.20 33.90 40.94
1955 33.23 31.93 33.32 36.43 40.90 48.53 50.03 48.26 46.37 43.84 37.83 36.97 40.64
1956 35.26 31.31 35.23 38.33 45.65 46.80 52.00 50.81 47.23 41.73 a 35.67 34.52 41.21
1957 27.42 35.68 39.81 40.83 46.61 49.80 49.26 49.00 48.03 42.87 32.13 35.94 41.45
1958 34.90 40.07 33.52 39.27 46.87 53.07 54.42 52.77 47.53 41.42 39.50 39.32 43.56
1959 36.87 33.18 35.19 39.20 42.45 49.47 50.94 49.68 47.37 43.35 34.23 33.61 41.30
1960 31.94 33.14 37.61 39.47 42.94 46.77 49.94 48.48 46.07 40.77 35.33 32.84 40.44
1961 33.61 37.71 36.10 37.77 44.55 49.80 50.81 52.71 44.10 39.42 32.37 34.00 41.08
1962 26.32 32.36 34.68 39.87 42.68 46.77 49.35 51.16 48.90 43.35 39.27 33.87 40.71
1963 24.52 38.82 34.84 37.27 43.03 48.40 49.06 50.65 51.23 43.97 38.93 33.29 41.17
1964 33.55 29.66 33.87 36.63 39.45 47.77 50.68 49.90 44.27 42.10 36.07 35.00 39.91
1965 35.42 33.71 31.90 39.80 39.97 45.67 50.32 51.90 42.03 43.19 39.17 31.48 40.38
1966 33.19 31.61 34.81 38.10 40.39 46.67 50.35 48.84 46.80 39.35 38.50 36.03 40.39
1967 35.45 32.75 35.19 35.33 41.13 49.87 51.42 52.52 47.67 42.42 37.83 32.77 41.20
1968 32.77 37.41 36.55 35.73 42.32 48.03 51.52 52.55 48.50 40.97 38.27 33.35 41.50
1969 30.87 30.39 31.84 37.27 45.71 52.63 50.42 48.74 47.63 39.74 37.13 36.10 40.71
1970 36.84 34.39 35.35 34.93 41.84 50.13 50.13 48.48 43.17 38.35 37.07 32.84 40.29
1971 32.19 33.71 32.94 36.70 43.16 46.93 51.00 53.03 43.93 37.45 35.97 32.16 39.93
1972 31.87 35.66 38.35 35.90 42.61 48.10 51.68 52.06 43.43 39.65 37.80 26.23 40.28
1973 31.48 34.29 34.58 37.33 43.55 47.90 49.52 47.39 48.27 40.48 37.43 37.39 40.80
1974 27.81 32.14 35.33 a 37.93 42.10 48.20 51.39 51.71 47.23 36.61 36.77 34.68 40.16
1975 35.29 33.18 33.97 34.57 41.58 47.37 52.48 49.42 47.07 43.55 33.33 35.39 40.60
1976 32.90 31.93 32.42 36.40 42.29 44.93 50.71 52.61 50.00 41.90 40.33 30.45 40.57
1977 28.35 35.00 33.97 37.67 42.45 49.37 49.90 55.00 49.40 44.74 37.17 37.77 41.73
1978 37.55 37.71 39.23 39.57 41.61 50.17 52.94 52.94 48.67 43.06 31.73 30.29 42.12
1979 25.03 36.64 37.94 41.10 44.13 47.63 51.26 52.16 51.55 a 46.48 36.20 35.00 42.09
1980 29.26 35.41 36.48 39.27 43.45 47.40 51.65 48.23 47.07 41.68 39.23 34.74 41.16
1981 35.71 34.64 36.13 39.30 44.16 48.60 50.90 52.71 47.67 40.97 37.73 36.61 42.09
1982 31.90 31.71 35.03 34.43 40.81 48.80 49.84 51.10 47.40 42.26 33.90 33.35 40.04
1983 32.71 37.11 39.55 36.50 43.16 46.80 51.29 52.39 45.70 42.52 39.70 31.68 41.59
1984 32.65 34.38 38.03 37.17 41.48 45.37 48.52 49.55 44.50 40.97 35.37 31.16 39.93
1985 29.81 30.71 32.23 41.00 41.13 46.00 51.23 48.16 44.67 38.71 30.20 25.74 38.30
1986 34.00 36.64 38.68 36.23 42.06 50.10 48.32 52.06 45.93 42.42 39.43 32.29 41.52
1987 30.58 33.46 35.94 38.00 45.26 47.23 50.39 48.35 45.87 40.10 38.87 33.19 40.60
1988 31.45 32.00 33.35 39.60 41.00 45.63 49.26 46.16 42.87 43.74 36.10 29.61 39.23
1989 30.87 22.32 33.03 38.87 40.81 45.13 47.13 47.39 42.90 38.03 33.80 29.61 37.49
1990 33.90 30.86 36.71 41.63 42.35 48.83 53.06 53.87 50.77 40.10 36.53 24.77 41.12
1991 28.74 38.25 33.71 38.03 41.90 45.33 51.23 51.10 46.60 40.55 39.23 33.48 40.68
1992 35.10 37.14 38.06 42.33 44.13 50.07 52.23 49.65 46.77 42.90 37.43 32.52 42.36
1993 28.74 30.43 39.68 40.07 45.29 47.30 49.03 50.87 45.77 42.55 28.80 32.13 40.05
1994 32.58 31.39 35.52 39.97 44.10 46.50 51.16 49.84 47.73 38.84 32.70 34.61 40.41
1995 35.03 38.11 34.84 37.70 43.58 47.30 52.90 48.10 50.20 41.00 42.87 35.81 42.29
1996 34.13 33.66 35.52 40.20 41.65 46.43 52.77 50.52 45.43 42.45 37.53 34.40 a 41.22
1997 32.52 33.54 36.23 38.37 45.81 47.23 51.32 52.52 50.13 42.58 38.03 30.94 41.60
1998 37.90 35.79 36.45 38.00 44.00 48.23 53.52 50.84 48.37 41.39 38.60 31.19 42.02
1999 34.86 c 34.04 33.71 c 36.03 a 40.10 45.86 a 49.68 53.61 c 44.07 a 38.33 a 39.10 a 33.80 a 40.27
2000 32.60 a 37.00 32.90 a 39.17 44.00 47.73 50.71 48.83 b 47.33 c 41.45 b 32.64 b 32.21 b 40.55
2001 31.97 31.83 d 35.46 c 36.42 d 42.29 c 45.53 49.48 51.06 46.19 d 40.00 c 38.50 d 33.59 i 40.80
2002 33.48 32.71 32.68 38.13 40.61 47.27 d 50.58 48.29 46.13 39.29 34.63 34.94 39.90
2003 37.32 31.93 38.90 38.03 41.62 g 46.67 51.42 51.39 48.08 f 45.64 c 34.72 e 35.13 h 41.78
2004 35.28 f 35.03 37.11 d 37.77 d 45.26 49.20 51.87 54.00 48.20 43.62 g 34.83 f 35.83 g 44.81
2005 32.00 f 30.33 d 35.24 f 37.78 g 46.44 f 46.27 51.16 49.65 h 43.91 h 42.54 g 36.23 h 32.39 m 42.59
2006 35.00 f 29.47 i 33.55 i 36.25 n 42.96 h 48.21 k 50.83 h 46.65 k 45.31 q 38.54 c 40.33 u ----- z 38.54
2007 30.82 n 34.07 37.94 37.77 41.93 d 46.48 a 54.42 50.81 46.36 b 41.39 35.27 35.14 b 41.96
2008 29.61 m 34.38 h ----- z ----- z 45.07 b 45.57 ----- z 52.39 46.28 e 41.36 c 40.63 31.07 a 43.19
2009 31.58 33.79 34.03 37.19 i 43.13 50.73 53.42 52.45 49.57 41.94 35.67 28.10 41.31
2010 38.94 37.54 35.52 37.07 41.77 48.10 50.84 51.42 50.83 43.35 38.40 36.60 k 43.07
2011 36.15 e 32.52 a 38.10 38.10 a 40.71 47.47 50.19 51.84 49.30 44.32 37.37 30.52 41.38
2012 33.13 33.07 33.77 40.41 a 41.32 46.71 b 51.45 51.32 46.23 42.90 b 40.60 35.39 41.36
2013 30.58 35.14 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 32.86
Period of Record Statistics
MEAN 32.44 33.84 35.48 38.24 42.98 47.82 50.83 50.82 47.18 41.74 36.91 33.28 40.92
S.D. 3.50 2.75 2.07 1.78 1.88 1.86 1.49 1.85 2.22 2.30 2.99 3.00 1.01
SKEW -0.67 -0.72 0.35 0.12 0.35 0.80 0.23 -0.27 -0.20 0.18 -0.57 -0.36 -0.38
MAX 39.58 40.07 39.81 42.33 46.87 53.07 54.42 55.00 51.55 47.77 42.90 41.68 43.56
MIN 21.10 22.32 31.84 34.43 39.45 44.47 47.13 46.16 42.03 36.61 28.80 24.77 37.49
NO YRS 65 68 66 65 66 68 67 68 67 68 67 64 60