MT SPOKANE SUMMIT, s

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(455674)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197212
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
1953 ----- z ----- z ----- z ----- z ----- z ----- z 33.00 36.00 28.00 26.00 15.00 13.00 13.00
1954 -10.00 10.00 r -1.00 14.00 i 24.00 s 25.00 31.00 34.00 23.00 21.00 13.00 6.00 -10.00
1955 1.00 a 0.00 c -20.00 a 13.00 21.00 31.00 26.00 38.00 26.00 a 15.00 b -17.00 n -5.00 g -20.00
1956 10.00 f -17.00 k 4.00 a 17.00 a 22.00 26.00 36.00 c 32.00 a 26.00 d 18.00 d 8.00 -10.00 h -17.00
1957 -18.00 b -9.00 b 5.00 b 19.00 31.00 g 29.00 33.00 37.00 d 22.00 a 9.00 12.00 b 15.00 -18.00
1958 12.00 c 16.00 9.00 a 19.00 b 26.00 31.00 e 39.00 c 38.00 22.00 b 23.00 b -3.00 i 7.00 d -3.00
1959 -16.00 e 7.00 b 10.00 16.00 a 21.00 29.00 32.00 g 34.00 25.00 c 25.00 -10.00 a 9.00 a -16.00
1960 1.00 -9.00 -16.00 12.00 21.00 21.00 b 44.00 28.00 20.00 a 21.00 13.00 a 7.00 -16.00
1961 8.00 14.00 a 7.00 16.00 23.00 29.00 a 34.00 40.00 b 25.00 19.00 9.00 -15.00 -15.00
1962 -15.00 -10.00 3.00 17.00 n 23.00 b 25.00 a 32.00 a 35.00 19.00 a 27.00 13.00 a 3.00 a -15.00
1963 -23.00 5.00 a 8.00 15.00 17.00 30.00 e 30.00 32.00 26.00 20.00 10.00 a -10.00 -23.00
1964 4.00 10.00 -11.00 a 11.00 23.00 e 33.00 39.00 28.00 h 28.00 i 20.00 i 7.00 m -19.00 i -19.00
1965 10.00 b 8.00 -4.00 12.00 15.00 27.00 40.00 ----- z ----- z 20.00 j 14.00 ----- z -4.00
1966 ----- z 11.00 3.00 10.00 20.00 27.00 b 25.00 b 32.00 b 36.00 e 8.00 8.00 10.00 3.00
1967 5.00 g 10.00 11.00 j 15.00 b 20.00 32.00 d 36.00 i 35.00 d 34.00 d 20.00 a 5.00 a -2.00 -2.00
1968 -12.00 a 7.00 12.00 12.00 15.00 27.00 36.00 33.00 25.00 20.00 9.00 -28.00 h -28.00
1969 -5.00 a 8.00 7.00 17.00 22.00 28.00 34.00 30.00 20.00 13.00 12.00 8.00 a -5.00
1970 -1.00 6.00 6.00 12.00 20.00 28.00 36.00 40.00 18.00 15.00 -6.00 0.00 -6.00
1971 -1.00 0.00 0.00 16.00 18.00 28.00 30.00 36.00 24.00 4.00 8.00 2.00 -1.00
1972 -20.00 -5.00 10.00 12.00 24.00 25.00 34.00 a 40.00 20.00 14.00 12.00 -18.00 -20.00
Period of Record Statistics
MEAN -5.31 4.06 1.78 14.35 20.65 27.95 34.00 35.00 24.39 17.67 8.53 2.33 -10.50
S.D. 11.19 8.17 9.14 2.80 3.02 2.88 4.79 3.48 4.79 6.34 6.79 9.85 7.50
SKEW -0.03 -0.53 -1.19 0.19 -0.45 -0.38 0.05 -0.17 1.00 -0.53 -1.78 -0.86 0.00
MAX 12.00 16.00 12.00 19.00 26.00 33.00 44.00 40.00 36.00 27.00 15.00 15.00 -1.00
MIN -23.00 -10.00 -20.00 10.00 15.00 21.00 25.00 28.00 18.00 4.00 -10.00 -18.00 -20.00
NO YRS 16 17 18 17 17 19 18 18 18 18 17 15 6