ASTOR EXPERIMENT STN, OREGON

Monthly Average Minimum Temperature (Degrees Fahrenheit)

(350318)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197306
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
1937 ----- z ----- z ----- z ----- z 43.85 d 49.00 51.22 d 51.29 g 51.11 c 46.81 43.90 39.00 b 46.41
1938 36.52 35.39 36.84 41.30 42.39 49.53 50.61 47.71 51.27 44.81 38.90 a 37.11 d 42.70
1939 39.39 34.64 38.10 39.83 43.48 48.80 o ----- z 50.61 ----- z 44.63 d 38.47 38.35 40.83
1940 33.10 37.03 39.03 41.33 43.74 48.40 56.39 51.16 50.47 47.03 34.57 36.48 43.23
1941 36.68 36.93 37.10 39.47 44.26 47.60 52.94 52.42 47.20 44.93 b 39.67 36.74 42.99
1942 32.19 33.07 33.29 39.70 44.19 47.30 55.00 54.13 48.67 42.90 37.70 37.71 42.15
1943 29.23 34.61 33.94 41.10 40.32 46.57 51.00 49.87 47.90 44.00 37.90 33.16 40.80
1944 33.65 34.61 a 34.03 38.77 42.35 47.30 51.61 51.74 49.40 46.84 37.37 31.61 41.61
1945 35.71 36.29 34.97 38.77 44.77 44.67 47.55 48.23 47.83 43.29 38.00 35.58 41.30
1946 35.48 35.25 35.90 37.97 44.81 46.67 50.97 50.48 49.20 39.45 34.73 36.55 41.46
1947 31.74 37.04 38.97 41.40 45.19 48.53 50.00 50.68 47.33 45.55 39.37 36.81 42.72
1948 ----- z ----- z ----- z ----- z ----- z ----- z 49.55 52.94 46.83 41.42 36.67 32.10 43.25
1949 24.58 33.32 37.61 40.43 45.19 45.39 g 49.45 49.42 49.40 38.23 43.30 35.74 40.61
1950 25.35 34.93 37.13 37.37 41.03 49.13 50.19 52.55 46.83 42.81 39.83 42.97 41.68
1951 34.32 35.11 32.65 36.93 41.77 47.70 50.97 48.77 47.50 43.52 37.67 32.71 40.80
1952 31.45 34.41 34.97 36.23 40.97 46.47 50.48 51.16 47.70 46.03 32.90 35.61 40.70
1953 41.35 36.61 36.94 39.07 43.16 46.53 49.87 53.35 49.63 44.42 43.63 38.55 43.59
1954 33.90 37.29 31.74 37.43 43.00 46.30 49.06 52.07 a 48.90 41.74 43.60 36.61 41.80
1955 34.84 33.59 a 34.00 34.87 40.58 47.63 50.16 48.00 45.53 44.58 36.30 35.17 a 40.44
1956 35.58 31.50 a 35.23 39.00 43.87 47.77 50.90 52.45 48.27 43.45 35.73 35.77 41.63
1957 28.39 35.89 38.10 39.97 45.26 49.33 48.97 48.61 49.62 a 42.52 34.27 37.29 41.52
1958 38.35 40.75 32.84 38.37 45.26 52.53 54.94 51.55 47.77 44.35 38.00 41.84 43.88
1959 37.23 36.29 37.13 40.93 41.48 49.37 50.16 49.71 48.23 44.71 36.30 35.19 42.23
1960 33.26 35.38 37.32 41.03 42.29 47.23 48.29 52.19 46.73 45.03 38.37 34.74 41.82
1961 39.00 40.89 38.42 39.43 44.68 48.07 53.77 52.94 44.87 42.23 a 34.17 35.61 42.84
1962 32.19 36.00 34.00 39.47 42.71 45.60 50.68 50.65 49.30 44.87 40.43 36.35 41.85
1963 29.71 42.25 36.19 39.63 41.00 48.50 52.00 52.87 50.30 46.45 40.43 37.32 43.06
1964 37.74 33.48 35.74 36.97 41.00 47.23 50.74 50.23 46.63 43.19 36.20 33.45 41.05
1965 35.87 37.96 34.58 40.00 42.29 46.07 50.71 52.32 45.21 a 44.48 42.67 33.39 42.13
1966 37.03 35.89 35.13 41.13 40.35 46.50 51.13 48.65 48.60 42.71 39.00 39.68 42.15
1967 39.10 35.25 34.74 33.87 42.68 50.40 48.39 52.32 48.67 45.10 39.43 35.58 42.13
1968 33.39 36.79 39.06 36.17 42.87 46.37 51.81 50.52 48.63 41.74 42.33 33.32 41.92
1969 28.81 32.25 34.71 38.63 43.45 52.87 50.55 48.06 49.80 40.90 37.93 37.71 41.31
1970 35.16 36.46 35.16 35.87 41.23 47.80 48.77 48.10 44.37 41.84 38.87 33.81 40.62
1971 33.94 34.50 32.84 36.87 41.97 a 45.60 49.42 50.65 44.10 a 38.68 38.00 32.90 39.95
1972 31.29 33.59 37.58 35.97 43.35 47.50 51.08 e 49.10 44.47 38.77 38.03 32.58 40.28
1973 32.65 33.68 35.52 38.32 b 41.39 47.07 ----- z ----- z ----- z ----- z ----- z ----- z 38.10
Period of Record Statistics
MEAN 33.95 35.68 35.76 38.67 42.84 47.80 50.84 50.75 47.95 43.44 38.46 35.98 41.82
S.D. 3.86 2.30 1.99 1.99 1.53 1.77 1.91 1.79 1.89 2.30 2.81 2.58 0.97
SKEW -0.47 0.96 -0.04 -0.51 0.05 1.09 1.06 -0.09 -0.40 -0.61 0.27 0.57 0.19
MAX 41.35 42.25 39.06 41.40 45.26 52.87 56.39 54.13 51.27 47.03 43.90 42.97 43.88
MIN 24.58 31.50 31.74 33.87 40.32 44.67 47.55 47.71 44.10 38.23 32.90 31.61 39.95
NO YRS 35 35 35 35 36 34 35 35 35 36 36 36 32