JOHN DAY DAM, WASHINGTON

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(454035)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197208
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
1958 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 22.00 i 22.00
1959 7.00 c 28.00 28.00 34.00 38.00 46.00 53.00 53.00 43.00 32.00 b 15.00 20.00 7.00
1960 12.00 16.00 12.00 36.00 36.00 46.00 53.00 46.00 42.00 a 34.00 28.00 d 21.00 12.00
1961 21.00 b 32.00 31.00 24.00 39.00 48.00 c 52.00 57.00 39.00 32.00 19.00 14.00 14.00
1962 6.00 a 16.00 b 26.00 36.00 37.00 44.00 41.00 50.00 44.00 b 39.00 25.00 20.00 6.00
1963 2.00 19.00 28.00 31.00 40.00 40.00 48.00 52.00 47.00 36.00 25.00 19.00 a 2.00
1964 27.00 28.00 27.00 35.00 38.00 52.00 55.00 53.00 49.00 38.00 29.00 -2.00 -2.00
1965 28.00 30.00 25.00 37.00 37.00 a 51.00 56.00 a 53.00 41.00 44.00 32.00 24.00 24.00
1966 28.00 29.00 29.00 34.00 43.00 47.00 54.00 56.00 52.00 39.00 37.00 32.00 28.00
1967 31.00 28.00 30.00 35.00 46.00 52.00 60.00 61.00 49.00 40.00 30.00 16.00 16.00
1968 21.00 24.00 35.00 33.00 ----- z 49.00 a 56.00 55.00 50.00 41.00 35.00 1.00 1.00
1969 3.00 22.00 29.00 37.00 a 45.00 50.00 a 39.00 d 52.00 a 50.00 33.00 32.00 ----- z 3.00
1970 23.00 33.00 22.00 ----- z 44.00 51.00 42.00 45.00 d 43.00 34.00 ----- z ----- z 22.00
1971 22.00 26.00 27.00 35.00 43.00 a 45.00 50.00 50.00 44.00 27.00 30.00 23.00 22.00
1972 9.00 12.00 32.00 34.00 38.00 40.00 50.00 51.00 ----- z ----- z ----- z ----- z 9.00
Period of Record Statistics
MEAN 17.14 24.50 27.21 33.92 40.31 47.21 50.64 52.43 45.62 36.08 28.08 17.09 12.90
S.D. 10.23 6.54 5.39 3.40 3.43 4.00 6.20 4.16 4.09 4.63 6.32 9.87 9.83
SKEW -0.21 -0.55 -1.53 -2.03 0.40 -0.55 -0.63 0.09 0.04 -0.17 -0.71 -0.78 0.06
MAX 31.00 33.00 35.00 37.00 46.00 52.00 60.00 61.00 52.00 44.00 37.00 32.00 28.00
MIN 2.00 12.00 12.00 24.00 36.00 40.00 39.00 45.00 39.00 27.00 15.00 -2.00 -2.00
NO YRS 14 14 14 13 13 14 14 14 13 13 12 11 10