ILLAHE, OREGON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(354133)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200706
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
1938 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 44.58 36.93 37.97 39.83
1939 36.81 34.61 38.48 40.47 44.68 47.90 52.19 52.26 48.10 44.29 40.37 41.06 43.43
1940 38.48 41.76 39.03 43.40 46.55 49.30 51.35 50.04 h 51.27 ----- z 40.47 36.71 43.83
1941 39.00 40.07 39.29 41.37 45.48 ----- z 55.26 l 51.32 46.50 43.94 41.23 36.74 42.49
1942 34.52 34.07 32.77 39.97 42.10 44.63 50.90 51.10 47.40 44.48 41.60 39.81 41.95
1943 33.23 37.00 38.74 42.07 42.23 47.60 51.06 49.61 50.10 45.90 41.07 35.48 42.84
1944 35.16 35.62 34.61 39.43 42.71 48.13 51.03 50.03 48.47 45.87 39.57 37.87 42.38
1945 37.65 ----- z 36.68 40.18 b 47.26 47.13 53.23 51.68 48.50 43.19 41.83 40.13 44.31
1946 35.20 a 36.18 38.71 40.00 44.77 48.00 52.26 52.10 46.70 42.55 36.70 38.10 42.61
1947 31.90 a 40.07 40.71 42.07 45.97 50.33 52.39 51.48 49.83 49.94 41.37 38.32 44.53
1948 ----- z ----- z ----- z ----- z ----- z ----- z 50.77 51.94 48.50 45.65 38.77 33.68 44.88
1949 25.68 35.19 a 39.58 40.53 46.19 48.00 a 50.87 50.10 50.13 40.68 42.53 36.74 42.19
1950 32.03 36.54 37.77 39.13 42.16 49.70 52.58 52.32 49.07 48.39 42.80 45.00 b 43.96
1951 36.68 38.53 i 33.33 a 40.50 45.26 48.83 51.67 a 51.74 49.13 45.55 40.77 35.26 43.52
1952 33.68 35.83 35.29 39.37 43.94 48.13 52.60 a 51.65 49.43 45.87 32.23 38.13 42.18
1953 42.42 36.25 35.48 39.77 43.16 47.07 50.77 52.58 51.23 43.00 y 43.25 f 37.74 d 43.65
1954 35.52 38.39 e 35.75 c 39.48 e 43.43 h 46.44 c 49.00 49.42 s 48.19 n 43.42 44.00 35.77 40.86
1955 33.94 33.36 34.55 36.30 42.39 47.53 49.00 49.16 49.00 i ----- z ----- z ----- z 40.78
1956 ----- z 35.00 q 36.12 w ----- z 40.89 m 48.12 v 53.03 50.77 47.30 43.42 37.10 35.10 44.45
1957 30.39 38.50 40.52 39.73 45.87 48.07 50.06 48.29 48.17 41.23 a 36.63 38.39 42.15
1958 36.00 z ----- z ----- z 41.04 b 45.81 51.73 54.00 53.58 49.70 44.32 45.00 42.84 47.56
1959 40.39 35.79 38.00 41.00 42.58 48.37 52.52 51.03 50.40 45.97 38.03 35.16 43.27
1960 35.58 36.93 40.81 41.67 44.10 48.93 52.87 51.55 47.83 44.71 40.60 37.13 43.56
1961 38.10 40.29 39.65 39.47 44.29 49.77 50.81 52.84 45.37 43.23 36.50 36.68 43.08
1962 30.71 36.57 36.23 40.23 40.55 43.87 49.29 51.29 49.43 45.42 43.08 e 36.74 41.95
1963 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1964 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1965 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1966 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1967 ----- z ----- z ----- z ----- z ----- z 50.55 h 49.52 51.35 48.50 44.74 40.83 33.58 44.75
1968 33.90 40.10 39.94 36.60 41.58 48.60 51.26 52.16 47.77 44.16 41.70 35.74 42.79
1969 35.19 33.50 33.48 39.50 49.60 u 52.67 51.58 49.23 50.60 42.61 39.63 39.00 42.45
1970 40.35 40.07 39.29 36.27 43.13 50.20 50.65 48.74 44.67 40.61 43.07 35.16 42.68
1971 34.13 37.11 36.68 38.20 42.77 46.57 50.97 52.65 46.47 41.77 37.93 33.87 41.59
1972 32.90 37.72 41.68 37.77 43.65 48.60 50.65 51.52 44.33 41.58 41.47 32.26 42.01
1973 35.97 39.71 37.06 38.20 42.10 45.47 44.65 41.97 48.67 43.90 41.83 40.94 41.71
1974 33.00 36.04 38.61 40.13 43.35 49.37 51.74 53.23 47.77 39.81 41.63 39.10 42.81
1975 36.58 35.57 37.94 35.83 43.10 47.20 51.48 50.35 48.13 46.13 38.97 39.16 42.54
1976 35.81 35.28 36.06 38.70 42.29 46.23 51.45 54.06 50.10 41.35 43.13 31.26 42.14
1977 30.74 38.46 36.06 39.03 42.65 50.77 49.97 53.74 51.07 45.87 40.83 40.87 43.34
1978 42.23 41.43 42.61 40.57 44.06 50.03 52.58 53.10 50.40 44.42 34.73 31.32 43.96
1979 33.20 a 37.93 41.13 42.07 45.32 46.90 51.68 51.23 51.70 48.23 40.67 37.30 a 43.95
1980 34.32 41.00 38.39 41.33 43.55 48.27 53.61 49.52 48.57 44.42 43.33 38.65 43.75
1981 40.07 a 39.36 39.39 41.77 45.71 49.73 51.39 52.42 48.67 43.84 42.93 41.61 44.74
1982 32.23 35.71 37.32 35.57 42.35 51.00 51.55 51.74 49.80 45.77 38.40 36.71 42.35
1983 37.16 40.86 42.35 39.37 45.97 48.63 52.19 53.77 49.33 46.32 43.00 38.52 44.79
1984 36.35 37.66 ----- z 37.93 43.52 47.27 52.00 49.61 46.50 43.58 39.97 35.00 42.67
1985 32.87 33.32 34.26 41.97 43.35 49.13 52.65 50.61 48.30 39.65 32.80 31.90 40.90
1986 40.81 42.18 41.90 39.83 43.26 48.47 49.35 52.52 47.90 45.32 40.00 37.00 44.04
1987 34.45 37.57 38.74 39.37 45.19 46.77 50.94 50.71 46.50 42.65 41.37 32.45 42.23
1988 37.06 35.62 33.48 36.37 42.03 47.00 51.35 50.10 46.17 45.84 41.23 33.35 41.63
1989 33.94 30.21 38.61 42.93 44.61 49.20 49.87 49.32 44.37 40.90 37.07 32.55 41.13
1990 38.32 32.25 39.26 37.73 41.71 47.86 a 52.45 54.58 48.53 42.58 ----- z ----- z 43.53
1991 ----- z 40.07 36.26 37.77 43.55 45.70 54.19 51.90 49.23 44.35 42.37 ----- z 44.54
1992 37.29 42.55 40.23 44.37 45.32 51.23 51.90 52.10 ----- z 47.00 ----- z 35.29 44.73
1993 ----- z ----- z ----- z ----- z 41.61 ----- z 56.42 54.06 58.10 48.65 37.60 31.81 46.89
1994 33.03 39.61 41.42 46.70 49.65 47.90 54.42 ----- z ----- z ----- z ----- z ----- z 44.67
1995 45.87 39.82 40.45 49.30 ----- z 53.20 60.65 56.87 51.80 44.81 43.13 37.74 47.60
1996 37.39 36.59 41.23 41.77 43.23 54.30 66.13 61.87 ----- z 47.65 42.13 40.94 46.66
1997 36.39 35.14 41.74 45.30 51.06 53.40 56.32 57.61 52.20 44.87 42.53 36.26 46.07
1998 41.81 39.32 39.97 39.77 44.81 50.10 54.81 54.26 49.67 41.55 41.93 32.65 44.22
1999 36.39 38.29 36.30 d 39.00 43.16 48.00 49.16 54.26 47.53 44.57 a 38.17 38.10 42.74
2000 37.93 b 40.55 38.39 40.50 44.58 50.27 50.48 51.19 49.37 44.26 37.00 36.61 43.43
2001 35.65 35.79 39.00 37.83 44.65 46.90 52.23 e 51.03 47.20 41.55 40.57 38.00 42.53
2002 36.32 36.82 35.74 42.33 40.77 a 48.00 53.45 51.77 48.30 39.52 40.41 a 37.77 42.60
2003 41.45 37.68 39.87 38.77 41.45 48.77 51.48 50.55 47.33 ----- z 38.63 ----- z 43.60
2004 42.65 39.18 a 40.77 40.39 b 44.19 48.20 51.10 53.26 48.07 43.87 39.00 37.55 44.02
2005 35.87 37.04 40.10 40.53 48.55 50.67 56.29 54.74 46.13 46.39 ----- z 37.66 b 44.91
2006 38.23 33.54 36.71 ----- z ----- z 49.63 ----- z 49.97 48.10 41.03 40.43 36.13 41.53
2007 31.77 35.57 38.07 a 39.87 ----- z 44.83 ----- z ----- z ----- z ----- z ----- z ----- z 38.02
Period of Record Statistics
MEAN 36.04 37.40 38.25 40.14 44.03 48.61 52.08 51.84 48.65 44.15 40.16 36.84 42.95
S.D. 3.60 2.65 2.49 2.49 2.06 2.08 2.86 2.57 2.18 2.30 2.64 2.92 1.09
SKEW 0.15 -0.19 -0.36 1.00 1.08 0.40 2.19 0.29 1.15 0.03 -0.88 0.12 0.55
MAX 45.87 42.55 42.61 49.30 51.06 54.30 66.13 61.87 58.10 49.94 45.00 45.00 46.07
MIN 25.68 30.21 32.77 35.57 40.55 43.87 44.65 41.97 44.33 39.52 32.23 31.26 40.90
NO YRS 59 58 59 60 57 60 62 61 59 60 59 60 41