HEPPNER, OREGON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(353827)

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
1893 ----- z ----- z ----- z 36.87 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 36.87
1894 26.93 d ----- z ----- z ----- z ----- z ----- z ----- z 54.61 44.27 39.26 36.37 25.52 37.82
1895 22.74 31.41 a ----- z 37.83 g 42.32 c 48.04 c 51.85 d 51.89 d 43.77 d ----- z ----- z 23.93 d 39.49
1896 28.28 b ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 28.28
1897 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 56.17 b 44.46 d 35.37 a 31.80 27.90 39.14
1898 24.71 34.16 c 29.39 34.17 a 38.20 a 46.55 a 50.26 52.50 a 43.50 34.47 a 30.43 18.74 36.42
1899 28.87 23.63 a 31.17 a 35.37 38.47 a 43.53 49.55 b 46.84 46.27 36.87 38.79 a 29.45 b 37.40
1900 30.42 e 27.96 a 36.77 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 31.72
1901 26.42 s 26.19 a 33.06 33.55 a ----- z ----- z ----- z 55.27 p 43.87 42.65 34.07 30.26 34.81
1902 21.19 30.29 32.19 35.73 43.33 a 45.30 50.10 49.68 44.87 40.23 32.86 b 26.90 37.72
1903 30.06 24.64 30.32 33.07 a 40.23 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 31.66
1904 ----- z ----- z ----- z ----- z ----- z 44.77 52.71 51.81 45.73 40.06 32.80 28.77 42.38
1905 ----- z ----- z ----- z ----- z 40.74 47.13 54.88 e 51.90 47.63 35.94 28.77 29.03 42.00
1906 30.42 32.36 28.90 38.27 42.20 a 45.77 58.19 52.94 47.80 41.39 33.63 31.39 40.27
1907 17.10 30.72 c 32.63 a 35.04 b 42.27 a 48.31 a 51.31 b 48.47 a 46.03 42.48 34.04 b 29.13 38.13
1908 27.58 27.48 34.16 36.43 b 39.03 46.72 a 56.67 a 53.34 b 46.05 j 37.19 33.10 25.65 37.94
1909 16.32 31.81 a 31.90 a 32.36 b 40.32 46.52 a 48.35 46.97 46.83 a 39.03 b 33.37 c ----- z 37.62
1910 21.97 b 21.12 d 37.97 a 40.00 c 44.10 a 45.00 51.58 46.10 42.63 38.04 h 33.77 30.53 a 37.71
1911 25.84 23.57 31.61 32.67 39.19 46.73 54.42 48.90 42.40 36.06 30.83 28.39 36.72
1912 27.74 31.66 28.68 36.07 a 41.55 48.90 a 52.81 48.90 41.63 33.48 35.10 a 28.06 37.88
1913 24.55 23.29 29.87 36.37 42.55 48.33 51.61 52.32 43.27 36.65 35.33 24.03 37.35
1914 34.23 29.82 34.55 36.90 41.90 46.10 52.97 51.71 45.10 39.58 32.17 18.43 a 38.62
1915 23.35 31.64 34.19 39.30 42.71 46.57 52.32 55.19 46.10 38.61 32.20 28.90 39.26
1916 11.06 27.52 35.65 36.97 38.00 45.33 47.97 51.23 45.30 34.48 25.83 26.06 35.45
1917 23.68 27.75 27.94 35.33 41.58 43.60 52.87 53.23 47.83 39.65 33.53 37.19 38.68
1918 32.84 29.39 34.52 34.80 37.58 49.73 53.94 50.10 49.73 43.16 31.43 28.26 39.62
1919 26.10 29.96 31.97 36.70 40.19 43.37 53.19 52.13 44.10 36.19 31.00 16.65 36.80
1920 23.03 26.41 33.26 34.93 38.03 46.53 52.97 52.84 45.47 38.03 30.33 30.06 37.66
1921 27.26 31.75 34.32 34.87 42.35 49.03 49.45 50.81 42.17 40.61 31.70 24.13 38.20
1922 19.68 25.14 30.42 34.63 40.16 51.30 53.87 52.77 46.53 39.68 29.00 23.65 37.24
1923 31.10 19.79 31.74 35.90 42.13 47.20 53.94 52.94 46.60 38.74 33.73 28.32 38.51
1924 21.55 34.86 30.71 35.00 43.68 48.00 51.81 51.00 46.50 38.06 32.17 17.81 37.60
1925 32.90 34.68 33.77 39.00 44.61 49.73 54.81 50.26 46.87 38.55 33.10 32.74 40.92
1926 ----- z 35.57 35.06 40.67 41.84 49.53 53.90 52.73 a 42.03 40.74 33.53 26.71 41.12
1927 22.23 33.75 31.19 33.30 40.19 49.50 52.55 52.16 45.53 40.94 37.53 24.26 38.59
1928 23.52 27.10 34.19 35.60 44.42 48.20 54.10 49.55 44.73 39.45 32.90 25.35 38.26
1929 16.16 16.04 34.10 33.63 40.32 47.73 50.90 52.26 45.10 39.39 27.73 32.58 36.33
1930 6.03 33.68 34.77 42.00 a 41.23 45.97 52.29 53.61 46.03 37.39 31.10 26.87 37.58
1931 29.71 29.64 34.06 36.73 44.06 49.10 52.23 50.87 44.03 36.55 28.60 24.10 38.31
1932 26.94 26.69 34.81 36.47 40.26 47.50 48.58 50.87 44.77 39.16 36.43 20.39 37.74
1933 27.19 22.36 32.84 35.00 38.45 47.43 51.87 52.94 42.77 40.87 32.90 35.03 38.30
1934 33.61 33.46 36.42 41.37 44.29 48.53 51.32 53.10 45.33 41.52 39.13 31.10 41.60
1935 27.39 28.75 30.77 34.30 39.90 48.20 52.74 51.26 47.80 37.39 27.17 26.77 37.70
1936 29.87 15.03 32.13 40.30 45.52 50.43 52.48 51.90 44.73 39.03 24.27 32.03 38.14
1937 6.68 27.75 35.23 35.97 41.06 49.03 56.97 50.19 46.87 40.94 35.60 31.32 38.13
1938 28.65 29.43 32.39 36.93 40.97 48.53 55.00 48.90 50.17 38.65 27.67 27.52 38.73
1939 30.06 24.96 34.32 36.03 43.81 45.87 53.29 52.81 47.40 39.19 30.37 32.03 39.18
1940 24.71 33.45 36.03 38.30 43.87 49.87 53.00 51.39 50.43 43.06 27.93 27.48 39.96
1941 27.68 30.75 33.29 39.07 43.74 48.70 56.45 54.39 45.87 38.58 33.87 28.23 40.05
1942 13.94 28.21 31.39 36.47 41.48 44.57 53.45 53.61 44.97 38.94 31.47 30.87 37.45
1943 17.97 28.04 30.48 38.13 38.68 44.23 51.42 47.74 46.23 39.29 32.77 26.00 36.75
1944 24.94 28.38 30.26 37.20 41.00 46.10 51.68 50.39 47.80 39.77 31.63 25.94 37.92
1945 30.26 32.04 32.32 34.73 42.84 44.87 51.39 51.87 43.40 37.97 32.77 26.35 38.40
1946 29.19 30.46 33.16 35.80 42.03 47.17 52.90 51.74 45.20 35.68 29.37 30.55 38.60
1947 23.87 29.43 36.35 38.73 45.94 48.00 51.45 50.13 47.07 42.26 34.73 31.30 a 39.94
1948 25.74 24.55 30.03 34.93 42.26 51.60 49.84 48.52 43.27 34.35 32.95 j 22.58 37.06
1949 8.87 a 24.71 31.60 a 37.90 a 44.32 c 45.03 48.65 48.93 a 44.47 31.26 32.24 a 26.26 35.35
1950 8.35 26.29 34.19 36.50 39.77 a 48.59 a 52.26 52.87 46.47 40.52 33.43 33.30 a 37.71
1951 26.07 c 28.82 29.06 33.36 b 40.94 47.79 a 51.50 a 49.77 43.80 38.06 29.07 a 23.45 36.81
1952 20.20 a 29.93 30.61 36.57 42.42 46.00 51.83 a 50.74 46.90 40.03 22.76 a 26.71 37.06
1953 36.39 28.64 31.67 a 35.93 a 38.35 43.77 48.97 52.55 46.40 38.45 b 34.80 32.00 a 38.99
1954 25.84 30.07 26.84 35.33 41.37 a 44.76 a 48.06 47.73 a 43.73 34.35 36.90 24.65 36.64
1955 27.30 a 26.00 a 27.10 33.13 38.81 46.77 50.90 b 48.47 a 44.90 40.06 28.77 25.83 a 36.50
1956 27.29 22.00 32.55 36.48 a 45.74 45.46 b 53.63 a 50.93 a 46.43 37.87 a 29.17 a 29.77 38.11
1957 12.26 27.46 b 34.03 38.76 a 46.26 49.30 49.74 48.52 47.34 a 39.19 30.61 b 32.37 a 37.99
1958 31.03 37.46 30.19 36.90 47.23 52.53 55.39 55.23 46.63 38.35 31.87 30.81 41.14
1959 27.94 30.21 33.61 36.60 39.39 47.87 52.58 49.65 46.63 40.06 26.70 25.45 38.06
1960 18.87 28.62 31.52 37.70 40.45 46.97 54.32 49.55 45.03 39.81 32.50 23.74 37.42
1961 29.77 36.64 35.42 36.73 41.71 51.07 53.29 56.84 42.73 36.68 24.97 28.35 39.52
1962 23.06 27.68 31.30 a 37.37 39.87 43.33 50.42 50.10 45.47 38.23 34.76 a 29.81 37.62
1963 18.35 32.39 31.94 34.93 41.84 47.47 47.84 51.77 50.83 40.68 35.33 25.42 38.23
1964 31.03 28.31 31.19 33.23 38.26 47.37 51.65 48.19 43.60 36.58 30.93 24.97 37.11
1965 30.06 31.57 26.94 37.23 38.65 46.33 52.97 52.81 41.67 40.55 35.27 26.71 38.40
1966 28.81 28.86 32.48 35.50 42.55 46.37 51.00 51.19 48.17 38.32 34.27 31.81 39.11
1967 33.39 30.93 31.90 33.30 40.42 49.67 51.97 56.74 50.47 40.87 31.77 27.39 39.90
1968 27.71 33.59 33.97 32.70 42.74 48.77 54.87 53.45 48.50 37.94 34.00 25.16 39.45
1969 15.84 27.89 33.10 35.97 44.42 52.40 50.84 49.00 b 47.90 a 36.68 33.60 28.74 38.03
1970 26.19 32.14 32.16 32.50 41.06 53.57 54.55 51.71 42.33 36.35 32.13 27.94 38.55
1971 30.87 29.79 30.77 33.97 43.42 46.30 53.81 56.10 42.20 36.42 33.23 28.97 38.82
1972 24.68 27.66 34.94 32.80 42.68 49.20 52.68 54.29 43.43 37.45 33.93 19.84 37.80
1973 24.13 30.14 33.23 35.03 42.61 48.50 52.77 51.74 47.93 39.71 33.20 32.45 39.29
1974 21.13 33.50 34.84 37.23 41.06 49.73 51.68 53.26 45.90 37.23 34.70 30.97 39.27
1975 27.42 26.82 30.48 32.73 41.26 46.90 57.03 50.06 44.63 41.97 31.43 31.65 38.53
1976 30.06 27.62 30.26 35.33 40.65 44.07 52.13 52.71 48.50 36.29 34.07 27.39 38.26
1977 20.42 31.04 32.42 37.03 39.68 51.07 52.00 58.13 46.57 39.03 29.87 30.35 38.97
1978 27.84 33.07 36.00 37.13 41.10 49.13 53.81 53.61 46.63 36.68 24.47 21.23 38.39
1979 8.87 30.00 33.90 37.93 44.13 48.17 54.26 54.65 48.37 42.97 28.27 31.23 38.56
1980 19.39 30.21 32.94 39.11 l 43.29 46.63 52.45 49.03 47.90 38.26 33.53 32.29 38.72
1981 30.06 29.46 33.35 ----- z 45.26 l 47.57 50.29 53.90 46.80 39.19 35.07 30.35 39.61
1982 27.94 28.11 32.48 33.20 41.32 52.27 53.10 53.29 45.60 37.68 28.17 28.68 38.49
1983 31.84 34.46 38.45 35.73 43.58 47.43 51.39 54.58 42.83 39.16 37.63 17.58 39.56
1984 26.58 31.38 36.19 36.53 40.97 46.67 51.10 50.52 43.20 34.58 32.00 22.55 37.69
1985 20.77 24.25 29.90 38.23 42.29 47.60 55.87 48.48 41.57 36.81 20.40 16.00 35.18
1986 28.84 30.71 36.39 35.40 44.00 50.40 48.03 55.71 44.20 38.52 34.20 24.94 39.28
1987 23.23 30.46 36.39 38.90 46.39 50.30 52.48 51.29 48.40 38.00 32.70 25.84 39.53
1988 25.94 28.59 32.32 40.27 42.06 49.17 53.00 50.55 46.20 44.45 36.30 27.35 39.68
1989 30.10 17.32 33.55 39.83 42.97 49.37 50.42 52.71 45.83 38.68 34.73 25.77 38.44
1990 31.26 27.79 33.52 39.87 42.52 49.63 55.52 55.16 49.83 37.26 35.60 15.65 39.47
1991 23.52 36.00 31.52 37.97 41.65 46.37 53.16 55.48 47.60 38.35 33.00 30.19 39.57
1992 30.77 34.79 36.19 40.90 45.45 53.00 53.35 53.00 43.70 38.65 32.43 24.84 40.59
1993 17.81 21.32 32.45 37.80 47.52 48.23 49.13 50.16 45.33 40.65 24.03 28.55 36.91
1994 32.42 25.04 34.39 40.87 46.03 48.57 56.26 52.52 50.37 38.13 32.33 27.26 40.35
1995 27.58 32.79 33.42 37.43 45.00 48.13 55.58 49.77 49.73 37.81 37.97 28.39 40.30
1996 29.10 22.97 33.45 39.13 41.03 47.77 55.84 54.00 45.90 39.00 32.07 28.55 39.07
1997 24.97 30.14 34.52 36.23 45.74 48.27 53.35 55.29 50.13 38.74 33.27 27.42 39.84
1998 29.45 32.79 34.84 37.43 43.48 48.30 58.48 54.23 ----- z 37.74 37.50 26.77 40.09
1999 32.81 32.86 33.23 33.60 40.52 48.70 51.68 56.19 45.30 37.55 37.47 31.35 40.10
2000 28.48 30.76 33.16 39.10 44.00 48.57 53.03 52.35 46.97 39.16 27.87 25.52 39.08
2001 27.65 28.00 33.65 36.00 43.45 47.10 53.63 a 55.71 49.23 38.39 33.63 29.84 39.69
2002 29.97 28.89 30.45 37.00 43.39 51.37 56.65 53.94 47.23 34.29 31.77 32.10 39.75
2003 33.16 28.96 38.45 37.07 44.45 50.43 55.55 54.71 48.93 42.00 30.00 28.74 41.04
2004 23.52 30.90 37.32 39.17 44.26 51.73 56.48 58.32 47.00 41.84 32.50 31.39 41.20
2005 27.00 27.14 35.06 38.57 47.16 ----- z 48.23 54.87 46.43 42.42 31.53 23.94 38.40
2006 34.74 26.11 33.32 38.47 44.16 50.60 57.16 52.65 ----- z 38.61 33.83 25.48 39.56
2007 22.61 31.82 34.97 36.63 42.94 48.40 57.16 52.10 46.33 38.68 29.97 29.42 39.25
2008 22.61 ----- z 31.52 32.41 m 44.61 46.90 54.71 ----- z 47.13 38.48 36.30 21.10 38.15
2009 26.68 27.18 30.13 35.80 43.74 51.30 57.29 55.71 49.37 36.03 32.83 20.61 38.89
2010 32.29 32.54 32.97 36.47 41.45 48.67 53.81 52.58 49.53 40.97 30.90 26.90 39.92
2011 29.29 26.93 33.90 34.17 a 40.48 47.32 b 51.45 54.19 50.90 41.45 32.10 23.71 38.83
2012 27.71 27.93 32.94 38.53 42.42 47.13 54.55 54.40 a 48.60 40.19 34.77 30.48 39.97
2013 24.45 29.32 32.43 c ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 28.73
Period of Record Statistics
MEAN 25.41 28.92 32.87 36.47 42.15 47.92 52.76 52.10 46.03 38.67 32.18 27.21 38.54
S.D. 6.18 4.05 2.35 2.19 2.25 2.19 2.38 2.49 2.29 2.26 3.37 4.09 1.30
SKEW -1.15 -0.81 -0.12 0.19 0.14 0.14 0.09 0.02 0.11 -0.22 -0.79 -0.67 -0.10
MAX 36.39 37.46 38.45 42.00 47.52 53.57 58.48 58.32 50.90 44.45 39.13 37.19 41.60
MIN 6.03 15.03 26.84 32.36 37.58 43.33 47.84 46.10 41.57 31.26 20.40 15.65 35.18
NO YRS 115 114 114 110 112 112 113 114 113 114 114 115 99