MALHEUR BRANCH EXP STN, OREGON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(355160)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1942 ----- z ----- z ----- z ----- z ----- z ----- z 60.83 s 55.58 46.00 37.61 28.87 27.29 39.07
1943 20.97 23.00 28.48 40.90 a 40.90 a 48.07 55.45 53.94 48.20 40.61 28.53 24.32 37.78
1944 11.74 28.38 28.48 38.27 44.84 48.53 56.48 55.10 45.23 36.65 29.20 21.39 37.02
1945 22.70 a 30.14 31.55 36.20 45.90 48.27 58.73 a 54.13 43.20 37.42 30.53 23.65 38.54
1946 20.65 25.18 33.65 38.27 44.45 50.57 58.94 55.65 44.38 a 34.19 30.60 28.00 38.71
1947 13.97 27.68 33.00 37.77 48.90 49.17 58.48 55.10 a 45.53 40.94 30.13 25.35 38.84
1948 22.58 26.28 32.77 35.63 44.23 55.70 56.26 54.03 46.03 35.39 29.17 15.13 37.77
1949 -0.06 21.96 33.42 38.17 47.71 51.47 56.42 56.65 47.57 31.13 a 28.37 22.42 36.27
1950 15.29 19.96 29.84 35.23 41.13 49.97 57.45 55.23 47.27 40.06 30.00 30.61 37.67
1951 21.74 26.71 27.71 37.33 45.03 a 48.20 59.16 54.13 a 45.76 a 37.06 26.62 a 23.19 37.72
1952 18.55 19.59 29.19 38.03 44.55 50.70 55.19 56.19 46.30 36.77 21.87 27.26 37.02
1953 33.32 28.50 30.29 35.80 41.00 48.10 57.52 55.61 46.43 36.23 31.83 23.74 39.03
1954 27.71 27.79 27.03 36.10 45.03 47.30 56.23 51.58 43.07 32.71 29.20 19.06 36.90
1955 15.48 15.96 25.94 34.00 41.19 51.30 53.83 a 53.94 44.47 35.74 24.63 25.32 35.15
1956 23.19 17.41 29.42 36.17 46.94 49.77 58.65 54.61 44.73 37.42 25.07 24.06 37.29
1957 10.48 20.96 34.35 39.03 48.52 52.90 56.42 55.03 46.37 37.68 24.70 27.16 37.80
1958 21.39 31.64 29.32 36.47 49.23 53.73 57.29 58.39 46.23 36.61 28.33 28.94 39.80
1959 27.32 28.43 28.90 37.80 41.68 53.20 59.00 55.68 47.07 38.90 21.73 18.03 38.15
1960 16.55 25.90 31.65 37.20 42.00 53.30 62.16 51.81 48.27 35.77 30.17 20.29 37.92
1961 21.16 32.04 32.84 36.50 44.81 56.77 60.61 60.52 42.53 34.90 23.83 21.87 39.03
1962 10.52 23.00 27.45 37.73 44.52 52.40 56.58 53.71 46.30 37.52 31.73 28.29 37.48
1963 17.06 31.96 32.42 36.27 47.48 51.47 56.13 57.39 51.23 41.48 32.20 21.65 39.73
1964 17.94 13.28 28.68 35.07 42.19 51.27 57.58 53.00 44.50 35.45 28.73 24.52 36.02
1965 23.90 27.00 24.52 40.33 43.35 52.27 57.39 54.97 43.27 36.94 32.73 22.42 38.26
1966 26.48 25.82 30.84 36.23 46.77 51.23 58.10 55.19 50.57 33.71 34.37 27.03 39.70
1967 28.29 27.93 31.10 34.90 43.71 52.50 61.13 59.35 51.70 36.29 31.50 19.16 39.80
1968 20.65 30.52 33.58 34.10 44.52 53.80 59.16 54.65 46.67 35.16 32.07 24.84 39.14
1969 23.58 25.82 29.00 38.07 48.90 53.80 57.77 55.65 48.73 34.55 26.43 26.58 39.07
1970 27.71 28.43 31.97 33.07 44.81 55.93 57.81 55.94 42.57 34.52 32.03 23.87 39.05
1971 26.32 27.96 29.26 37.53 46.97 50.77 59.32 59.52 42.50 35.94 28.53 20.87 38.79
1972 18.87 22.90 33.61 35.53 46.32 55.03 57.55 58.52 43.83 39.19 31.10 13.61 38.01
1973 23.19 29.07 33.29 38.70 45.87 52.97 59.87 56.06 47.07 36.35 33.03 29.42 40.41
1974 19.29 28.79 32.58 37.70 43.61 55.87 58.39 55.71 45.13 37.45 30.93 22.55 39.00
1975 16.71 27.00 31.42 34.73 43.23 51.57 62.97 54.32 47.03 39.87 27.00 23.45 38.28
1976 18.55 21.31 26.39 35.67 45.03 48.67 58.32 52.42 48.80 33.87 25.83 15.65 35.88
1977 11.03 21.86 29.32 39.17 42.90 58.00 57.03 57.61 46.57 36.71 27.47 29.58 38.10
1978 28.00 31.07 34.52 38.63 43.35 50.50 57.42 53.48 45.43 33.42 22.33 14.19 37.70
1979 2.84 22.39 31.68 35.70 47.58 52.30 58.81 57.74 47.60 39.16 22.30 23.71 36.82
1980 21.35 30.59 30.61 39.70 45.81 49.33 57.03 52.13 45.83 33.23 25.63 23.97 37.93
1981 28.74 25.46 30.19 38.33 45.23 50.03 55.29 56.97 45.90 33.58 32.47 24.68 38.91
1982 11.03 16.82 30.84 33.17 43.45 53.40 56.87 57.00 45.67 35.81 25.50 21.42 35.91
1983 22.03 31.32 35.26 35.20 44.55 51.23 55.00 57.97 43.90 36.48 33.87 17.39 38.68
1984 15.06 18.62 31.81 36.40 42.23 49.93 57.94 57.06 43.33 32.16 30.37 10.74 35.47
1985 5.26 13.82 27.94 39.10 46.29 51.90 60.48 50.45 39.70 31.39 17.33 2.52 32.18
1986 11.90 28.14 35.77 36.70 44.58 55.30 55.23 59.00 45.23 35.13 28.63 19.52 37.93
1987 14.68 28.11 32.97 39.93 49.90 54.13 55.52 53.39 46.53 34.58 29.97 23.81 38.63
1988 13.26 24.14 30.06 37.73 44.23 56.03 58.68 54.26 43.00 39.94 31.03 17.00 37.45
1989 6.19 4.86 30.45 38.40 43.48 53.70 58.35 54.06 44.47 34.68 23.93 17.61 34.18
1990 23.68 20.36 30.74 41.33 43.65 52.23 59.45 56.10 52.27 34.00 27.03 8.29 37.43
1991 14.68 28.32 30.71 36.47 43.23 49.70 58.94 56.87 46.40 36.06 29.97 21.90 37.77
1992 24.00 30.10 34.84 39.80 49.03 55.53 55.55 55.16 42.87 36.35 28.50 17.32 39.09
1993 14.87 15.93 30.19 37.17 48.29 48.83 50.42 50.48 44.43 37.65 18.57 25.06 35.16
1994 27.16 22.61 30.71 39.00 48.42 51.47 60.00 58.00 49.00 35.71 21.97 ----- z 40.37
1995 25.23 30.54 32.35 36.47 46.26 ----- z 57.35 50.68 47.20 31.48 30.73 24.42 37.52
1996 23.87 23.83 31.52 35.20 43.16 49.33 57.03 51.48 43.10 34.26 27.77 23.06 36.97
1997 21.94 25.04 28.97 33.93 45.16 51.40 55.32 53.42 47.33 32.52 27.00 23.06 37.09
1998 26.74 30.14 32.45 37.67 45.84 ----- z 61.32 57.06 52.47 35.68 33.40 20.58 39.40
1999 27.55 25.86 30.32 34.53 42.10 51.00 55.42 56.48 44.17 34.81 31.07 24.94 38.19
2000 24.97 31.31 31.39 39.43 46.58 51.90 59.19 56.26 45.00 38.48 25.13 25.19 39.57
2001 20.87 23.75 33.19 35.10 45.90 51.63 59.03 57.61 ----- z ----- z 31.03 24.65 38.28
2002 25.13 ----- z 29.26 37.83 44.16 54.27 61.06 53.68 46.77 34.71 ----- z 28.68 41.55
2003 30.45 27.07 33.52 36.97 46.55 54.67 63.42 59.13 48.67 40.10 25.00 29.77 41.28
2004 19.45 22.45 34.58 39.93 45.52 53.20 59.81 57.48 47.10 39.58 29.73 27.00 39.65
2005 24.26 24.04 31.77 37.37 46.74 50.40 58.32 57.19 44.43 38.48 27.70 16.10 38.07
2006 28.10 22.50 31.84 38.33 47.29 56.33 63.94 55.35 46.33 35.74 30.57 21.23 39.80
2007 18.06 28.14 33.06 37.10 46.84 53.73 64.55 55.58 46.97 35.61 27.43 24.19 39.27
2008 16.45 26.79 29.65 31.40 46.71 52.53 59.29 56.19 45.77 37.48 31.47 19.65 37.78
2009 22.55 25.93 29.97 36.50 45.97 55.00 59.65 56.97 49.83 35.77 27.50 18.23 38.65
2010 26.77 30.54 30.77 34.77 41.55 51.93 57.06 54.10 44.93 40.13 26.97 20.03 38.30
2011 18.94 24.43 31.68 33.13 41.29 49.40 55.29 55.29 48.04 g 37.65 27.43 b 17.50 a 35.64
2012 24.59 d 25.28 32.77 a 39.18 b 44.30 a 48.97 61.00 56.71 44.09 g 33.23 30.00 23.94 o 39.60
2013 3.87 a 24.65 b 26.83 b 35.50 z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 18.45
Period of Record Statistics
MEAN 19.85 25.07 30.96 36.96 45.05 52.00 58.12 55.46 46.07 36.20 28.26 22.14 37.95
S.D. 6.96 5.11 2.33 2.02 2.25 2.48 2.42 2.21 2.45 2.41 3.56 5.17 1.54
SKEW -0.74 -1.27 -0.31 -0.24 0.06 0.25 0.15 -0.20 0.45 0.11 -0.82 -1.14 -1.05
MAX 33.32 32.04 35.77 41.33 49.90 58.00 64.55 60.52 52.47 41.48 34.37 30.61 41.28
MIN -0.06 4.86 24.52 31.40 40.90 47.30 50.42 50.45 39.70 31.13 17.33 2.52 32.18
NO YRS 71 70 71 70 70 68 70 71 68 70 70 69 63