ASTOR EXPERIMENT STN, OREGON

Monthly Extreme 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 34.00 d 43.00 43.00 d 41.00 g 38.00 c 40.00 32.00 28.00 b 28.00
1938 30.00 28.00 28.00 30.00 35.00 39.00 39.00 41.00 44.00 32.00 26.00 a 27.00 d 26.00
1939 32.00 23.00 30.00 31.00 34.00 37.00 o ----- z 40.00 ----- z 31.00 d 33.00 27.00 23.00
1940 28.00 27.00 30.00 34.00 33.00 40.00 47.00 44.00 37.00 35.00 26.00 20.00 20.00
1941 27.00 26.00 23.00 32.00 35.00 39.00 40.00 40.00 37.00 36.00 b 29.00 26.00 23.00
1942 17.00 24.00 27.00 33.00 34.00 38.00 45.00 40.00 37.00 32.00 30.00 30.00 17.00
1943 11.00 25.00 24.00 29.00 33.00 40.00 42.00 44.00 40.00 35.00 29.00 26.00 11.00
1944 25.00 25.00 a 22.00 32.00 32.00 36.00 42.00 41.00 39.00 37.00 28.00 20.00 20.00
1945 24.00 25.00 24.00 26.00 36.00 36.00 39.00 37.00 38.00 30.00 27.00 23.00 23.00
1946 25.00 25.00 27.00 28.00 35.00 40.00 41.00 41.00 41.00 28.00 25.00 21.00 21.00
1947 19.00 23.00 28.00 32.00 34.00 40.00 42.00 39.00 32.00 36.00 27.00 28.00 19.00
1948 ----- z ----- z ----- z ----- z ----- z ----- z 43.00 44.00 35.00 32.00 20.00 22.00 20.00
1949 14.00 20.00 27.00 29.00 32.00 37.00 g 37.00 41.00 35.00 25.00 38.00 23.00 14.00
1950 9.00 14.00 25.00 29.00 33.00 37.00 43.00 42.00 33.00 31.00 27.00 34.00 9.00
1951 14.00 24.00 25.00 27.00 31.00 40.00 41.00 37.00 36.00 29.00 26.00 21.00 14.00
1952 21.00 25.00 26.00 26.00 29.00 37.00 38.00 40.00 35.00 37.00 19.00 28.00 19.00
1953 28.00 26.00 23.00 28.00 32.00 36.00 41.00 44.00 37.00 31.00 30.00 31.00 23.00
1954 19.00 25.00 24.00 29.00 25.00 36.00 38.00 40.00 a 38.00 30.00 31.00 28.00 19.00
1955 26.00 21.00 a 22.00 26.00 31.00 35.00 38.00 38.00 35.00 36.00 10.00 23.00 a 10.00
1956 18.00 15.00 a 23.00 28.00 32.00 40.00 42.00 44.00 37.00 31.00 25.00 23.00 15.00
1957 13.00 23.00 28.00 29.00 37.00 40.00 40.00 41.00 37.00 a 30.00 26.00 28.00 13.00
1958 30.00 27.00 25.00 30.00 28.00 41.00 44.00 45.00 33.00 33.00 22.00 32.00 22.00
1959 14.00 29.00 29.00 30.00 31.00 39.00 41.00 41.00 39.00 30.00 24.00 25.00 14.00
1960 21.00 20.00 19.00 29.00 32.00 38.00 40.00 41.00 36.00 31.00 28.00 27.00 19.00
1961 25.00 30.00 28.00 29.00 33.00 40.00 42.00 44.00 35.00 31.00 a 24.00 21.00 21.00
1962 11.00 16.00 25.00 28.00 32.00 37.00 38.00 42.00 41.00 35.00 29.00 22.00 11.00
1963 13.00 33.00 27.00 29.00 31.00 39.00 39.00 43.00 42.00 32.00 28.00 24.00 13.00
1964 31.00 24.00 26.00 28.00 31.00 37.00 41.00 41.00 36.00 29.00 26.00 10.00 10.00
1965 29.00 29.00 24.00 28.00 29.00 37.00 41.00 40.00 32.00 a 33.00 28.00 23.00 23.00
1966 25.00 26.00 26.00 29.00 31.00 35.00 43.00 41.00 39.00 31.00 29.00 29.00 25.00
1967 31.00 27.00 26.00 28.00 29.00 41.00 41.00 41.00 39.00 34.00 29.00 22.00 22.00
1968 20.00 23.00 27.00 26.00 33.00 38.00 43.00 43.00 37.00 32.00 28.00 16.00 16.00
1969 13.00 27.00 25.00 31.00 31.00 43.00 41.00 39.00 37.00 30.00 26.00 28.00 13.00
1970 24.00 28.00 26.00 27.00 33.00 37.00 40.00 40.00 30.00 27.00 26.00 25.00 24.00
1971 21.00 25.00 20.00 30.00 32.00 a 37.00 38.00 42.00 33.00 a 20.00 27.00 23.00 20.00
1972 10.00 19.00 27.00 28.00 31.00 37.00 42.00 e 40.00 27.00 27.00 30.00 4.00 4.00
1973 16.00 23.00 29.00 29.00 b 32.00 32.00 ----- z ----- z ----- z ----- z ----- z ----- z 16.00
Period of Record Statistics
MEAN 20.97 24.29 25.57 29.06 32.11 38.24 41.00 41.17 36.49 31.64 26.89 24.11 17.47
S.D. 6.97 4.08 2.60 1.97 2.33 2.34 2.20 2.01 3.41 3.76 4.50 5.72 5.48
SKEW -0.10 -0.68 -0.48 0.53 -0.58 -0.16 0.35 -0.02 -0.42 -0.49 -1.23 -1.43 -0.49
MAX 32.00 33.00 30.00 34.00 37.00 43.00 47.00 45.00 44.00 40.00 38.00 34.00 26.00
MIN 9.00 14.00 19.00 26.00 25.00 32.00 37.00 37.00 27.00 20.00 10.00 4.00 4.00
NO YRS 35 35 35 35 36 34 35 35 35 36 36 36 32