HART MOUNTAIN REFUGE, OREGON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(353692)

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
1939 ----- z ----- z ----- z ----- z 36.29 36.70 46.65 46.65 39.13 33.03 25.60 25.90 36.24
1940 24.32 26.76 28.32 30.17 35.97 43.57 44.81 45.71 39.50 35.61 22.00 22.19 33.24
1941 21.81 25.21 26.19 28.87 36.57 a 38.33 46.48 44.42 34.83 30.97 29.07 20.94 31.97
1942 15.06 16.71 22.03 30.40 32.94 36.63 44.68 44.39 38.50 33.39 26.30 24.48 30.46
1943 15.81 25.32 24.16 32.33 31.97 34.53 44.81 40.42 41.57 33.16 25.53 17.32 30.58
1944 15.10 18.90 21.29 26.83 31.77 36.70 43.42 40.77 38.00 35.39 16.88 d 15.86 q 29.55
1945 19.87 21.79 22.35 28.87 35.35 36.40 44.68 44.42 34.70 31.35 24.50 18.35 30.22
1946 16.77 17.82 25.90 28.97 34.87 38.00 44.48 43.97 35.53 o 26.52 22.10 22.42 29.26
1947 14.35 24.93 26.06 28.08 f 38.39 37.17 41.45 42.35 38.40 34.35 24.07 19.23 30.98
1948 20.10 15.17 19.45 25.37 32.23 40.03 39.73 a 39.97 35.13 28.59 b 22.70 11.65 27.51
1949 -1.13 16.25 23.64 t 31.67 o 36.19 36.53 43.26 42.39 40.00 28.16 31.07 18.77 29.15
1950 13.20 a 21.21 21.45 25.90 29.63 a 40.97 44.30 a 44.87 a 38.43 38.68 31.57 28.80 a 31.58
1951 17.93 a 21.52 a 18.81 29.27 33.39 37.14 a 44.06 43.58 39.17 a 30.83 a 24.21 a 13.94 29.49
1952 16.29 19.69 19.84 29.97 35.52 38.43 46.71 42.77 a 41.24 a 35.87 19.23 20.45 30.50
1953 29.19 22.18 24.84 26.47 30.16 34.83 42.65 43.03 a 41.80 32.03 31.00 24.65 31.90
1954 19.62 o 25.75 20.00 a 29.03 33.70 a 35.00 a 43.32 38.81 34.23 28.39 27.59 a 16.17 a 30.18
1955 11.53 a 15.96 20.10 22.13 29.68 39.90 40.21 c 41.97 35.70 31.29 22.72 a 20.52 27.64
1956 20.32 15.68 a 25.28 b 28.77 35.90 36.77 44.26 40.94 36.53 27.80 a 23.13 18.40 a 29.48
1957 9.58 24.74 a 26.16 28.28 a 35.45 39.46 d 42.71 38.68 39.53 30.84 18.93 22.84 29.77
1958 22.58 29.14 19.68 27.77 37.81 40.73 44.39 48.29 37.10 33.77 25.57 27.16 32.83
1959 21.97 20.04 23.37 a 27.40 28.87 40.07 45.39 41.06 37.23 29.45 22.77 18.45 29.67
1960 15.16 16.03 23.72 b 28.00 29.19 39.10 46.97 40.97 b 37.28 a 30.32 22.93 c 21.06 29.23
1961 21.29 24.27 b 23.52 b 24.41 c 31.14 b 45.10 45.74 49.97 a 34.13 31.06 18.97 16.04 e 30.47
1962 11.52 22.39 e 15.77 30.47 31.97 38.27 43.29 42.55 39.63 32.23 25.90 24.21 b 29.85
1963 12.90 a 28.48 c 21.29 c 22.56 c 37.28 b 39.45 a 39.90 a 40.37 a 43.41 a 33.71 c 26.38 a 21.13 a 30.57
1964 12.30 h 16.24 18.33 d 22.18 b 28.73 a 39.10 45.61 41.67 a 34.07 a 32.07 d 21.21 a 20.83 b 29.09
1965 21.21 b 22.58 d 19.41 b 27.37 c 28.23 a 39.20 42.00 43.16 31.40 33.97 a 27.57 16.10 29.35
1966 18.03 15.79 21.94 26.80 32.52 38.13 42.42 44.55 40.07 27.21 b 28.20 22.58 29.85
1967 21.26 23.36 20.94 22.27 33.23 39.43 47.55 47.00 42.00 30.20 a 26.70 16.23 30.85
1968 18.16 25.90 24.10 23.83 31.87 39.57 47.55 43.35 38.40 32.23 25.73 18.42 30.76
1969 17.74 18.29 18.87 26.47 35.61 41.43 43.16 42.03 40.37 27.45 23.64 b 22.81 d 29.82
1970 21.72 b 24.32 21.97 20.90 32.42 42.87 44.84 44.65 33.67 28.94 29.33 15.81 30.12
1971 23.39 20.64 20.77 26.13 33.39 37.50 45.55 48.83 a 34.00 29.48 b 23.00 d 15.03 29.81
1972 14.87 a 22.83 27.97 24.30 32.71 39.10 a 44.58 45.35 34.60 29.10 23.40 13.00 e 29.32
1973 16.29 23.30 a 20.90 22.60 35.23 38.90 a 44.65 43.74 37.68 e 28.11 d 26.46 d ----- z 30.71
1974 13.54 e 16.50 21.52 b 24.93 28.42 40.75 b 42.00 41.35 37.52 a 28.06 24.60 e 17.71 g 29.02
1975 18.44 d 19.47 i 17.00 d 21.28 a 30.42 37.03 47.23 39.90 a 38.29 b 31.00 d 21.73 d 23.23 29.59
1976 20.45 17.22 b 17.23 23.03 a 32.94 35.03 a 44.03 40.94 39.32 b 29.37 a 25.68 b 19.16 28.70
1977 13.58 22.75 19.87 26.45 a 30.03 42.63 42.55 46.87 37.83 32.10 25.83 22.12 g 30.95
1978 24.04 c 24.17 e 29.86 b 26.80 28.87 33.76 a 42.53 a 41.80 a 35.82 b 29.58 e 18.91 g 9.42 e 29.70
1979 9.07 c 19.96 22.17 y 23.67 c 30.60 a 37.43 43.03 43.54 c 38.93 32.86 c 17.67 c 19.47 a 28.75
1980 12.72 b 25.55 19.87 28.07 33.68 35.27 44.77 a 40.68 39.17 32.70 a 25.77 21.68 c 29.99
1981 22.35 17.52 a 22.65 27.67 33.10 37.37 41.29 42.55 b 36.57 28.33 a 25.83 a 23.43 c 29.89
1982 18.53 a 19.61 21.94 23.13 30.32 39.43 42.16 43.26 36.03 30.58 20.30 16.71 28.50
1983 23.97 a 25.18 27.61 26.17 34.45 37.20 37.77 45.74 34.07 31.94 27.17 18.35 30.80
1984 20.42 18.14 25.39 25.67 33.10 35.90 46.65 44.45 37.10 28.58 26.33 15.58 29.77
1985 15.10 16.82 20.45 31.10 32.58 39.47 49.81 40.65 33.10 30.35 18.17 17.13 28.73
1986 29.06 26.50 30.03 27.20 34.00 43.57 40.13 47.68 33.83 31.55 26.97 ----- z 33.68
1987 15.84 22.71 25.06 31.90 35.29 43.14 b 41.97 42.55 38.28 a 33.06 24.66 a 18.03 31.04
1988 18.03 a 23.03 21.48 30.33 32.77 38.62 a 44.13 42.10 36.73 33.90 23.27 17.10 30.13
1989 14.29 11.18 25.00 30.77 31.61 39.80 44.32 41.16 36.07 28.42 22.19 c 19.55 28.70
1990 21.35 16.64 22.26 31.20 29.65 37.80 44.84 44.45 37.83 30.81 23.00 8.06 28.99
1991 17.42 26.61 20.58 25.13 31.23 36.77 43.71 43.74 39.43 29.68 26.20 o 22.10 30.58
1992 24.23 25.66 26.61 30.80 35.42 41.27 42.00 46.16 37.20 34.29 21.90 13.16 31.56
1993 14.52 15.18 30.06 27.90 35.39 36.60 35.84 38.29 36.50 32.94 12.77 18.45 27.87
1994 23.52 18.50 24.90 30.43 36.16 37.70 46.42 42.61 39.63 28.97 16.97 20.06 30.49
1995 23.35 26.79 22.29 n 27.80 34.45 37.15 j 42.81 39.97 37.93 28.58 27.60 20.32 30.96
1996 22.55 20.90 25.03 27.97 31.55 37.40 45.61 42.83 a 34.50 30.77 26.63 23.13 30.74
1997 19.94 19.39 25.37 a 26.10 36.35 38.13 41.74 40.95 j 37.33 28.60 a 27.14 a 16.86 j 30.01
1998 23.39 22.29 k 22.86 i 28.21 k 32.75 k 38.68 k 50.12 n 44.67 j 45.64 p 28.75 k 25.50 r 16.29 n 23.39
1999 20.40 p 16.79 n 21.42 l 24.13 o 32.10 k 36.16 k 40.27 i 42.10 j 34.71 b 28.25 k 32.21 k 19.65 k 34.71
2000 20.18 n 24.00 m 21.41 n 32.46 q 34.00 w 42.87 g 42.75 g 46.08 r 38.67 o 31.00 w 13.45 s 18.27 t 9999.00
2001 17.80 a 16.44 a 25.36 c 23.96 e 35.06 37.92 f 43.92 g 46.42 39.52 g 29.92 r 23.22 l 22.90 u 27.51
2002 14.06 o 18.94 k 21.59 n 25.78 l 31.29 c 40.90 47.65 40.26 37.37 26.35 22.32 k 21.23 35.01
2003 28.52 17.71 26.11 d 27.29 f 33.39 40.08 e 49.94 45.52 40.07 34.81 20.37 23.05 i 33.65
2004 21.39 20.41 29.45 28.32 e 33.16 39.37 46.23 e 46.00 i 35.00 j 30.73 i ----- z 23.18 t 31.19
2005 22.10 j 16.00 n 24.12 o 27.70 j 33.96 h 38.27 h 45.84 l 41.95 l 32.95 k 29.56 m 20.75 r 10.77 r 9999.00
2006 21.41 n 19.83 p 22.58 l 25.45 j 31.27 i 43.05 j 50.38 r 39.35 k 37.30 j ----- z 22.11 k 16.50 s 9999.00
2007 12.10 j 22.29 g 24.58 l 24.20 j 33.11 l 40.89 l 51.80 k 44.52 h ----- z 28.43 h 18.61 g 14.35 n 9999.00
2008 13.28 f 17.55 19.78 h 23.07 34.10 36.30 g 45.19 j 44.41 i 37.17 32.92 r 27.43 g 13.67 m 27.97
2009 16.70 k 19.79 17.59 i 24.21 f 33.60 f 40.89 c 45.15 e 43.19 39.93 28.69 e 19.45 h 11.53 l 36.27
2010 23.56 m 19.26 i 19.42 g 24.00 f 29.69 e 36.83 g 42.10 42.87 35.76 e 30.11 l 19.50 l 22.75 k 37.61
2011 14.39 m 11.81 g 24.70 d 24.63 30.71 37.60 42.84 45.16 38.37 30.26 21.77 13.19 30.92
2012 16.77 16.72 22.35 29.17 32.71 37.23 47.48 46.13 40.63 28.32 25.27 17.16 30.00
2013 13.45 17.25 23.90 35.00 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z -7.00 z 18.20
Period of Record Statistics
MEAN 18.32 20.81 23.06 26.88 32.96 38.64 44.01 43.24 37.49 30.95 24.09 19.14 30.06
S.D. 5.20 4.03 3.36 2.91 2.53 2.36 2.56 2.53 2.46 2.56 3.69 4.15 1.22
SKEW -0.62 0.07 0.20 -0.20 -0.01 0.44 -0.38 0.38 -0.08 0.49 -0.51 -0.28 0.27
MAX 29.19 29.14 30.06 32.33 38.39 45.10 49.94 49.97 43.41 38.68 31.57 28.80 33.24
MIN -1.13 11.18 15.77 20.90 28.23 33.76 35.84 38.29 31.40 26.35 12.77 8.06 27.51
NO YRS 62 64 61 61 67 64 66 65 66 64 60 56 43