STEVENS PASS, WASHINGTON

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(458089)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 199404
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
1950 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 37.00 z 56.00 46.00 a 56.00
1951 41.00 46.00 52.00 63.00 73.00 f 78.00 q 78.00 o 82.00 i 77.00 b 65.00 47.00 c 39.00 82.00
1952 42.00 51.00 57.00 69.00 a 72.00 i 70.00 86.00 a 85.00 c 83.00 b 72.00 b 47.00 b 44.00 86.00
1953 45.00 41.00 a 52.00 b 55.00 f 68.00 h 67.00 i 82.00 b 85.00 b 79.00 a 63.00 c 48.00 b 39.00 b 85.00
1954 42.00 a 45.00 b 47.00 l 47.00 l 69.00 f 66.00 t 73.00 e 78.00 c 75.00 f 58.00 e 53.00 e 41.00 c 78.00
1955 40.00 e 38.00 f 49.00 d 56.00 c 61.00 g 75.00 e 84.00 g 83.00 q 83.00 j 65.00 h 50.00 l ----- z 84.00
1956 32.00 37.00 50.00 65.00 g ----- z ----- z ----- z ----- z 74.00 g 65.00 g 49.00 47.00 74.00
1957 36.00 42.00 a 47.00 68.00 76.00 78.00 73.00 74.00 79.00 70.00 54.00 49.00 79.00
1958 39.00 45.00 43.00 56.00 78.00 82.00 88.00 89.00 a 83.00 70.00 48.00 48.00 89.00
1959 40.00 38.00 46.00 59.00 65.00 77.00 86.00 a 86.00 a 68.00 n 62.00 56.00 42.00 86.00
1960 40.00 36.00 63.00 65.00 63.00 72.00 90.00 80.00 74.00 68.00 44.00 42.00 90.00
1961 40.00 40.00 48.00 48.00 68.00 91.00 87.00 85.00 70.00 66.00 49.00 40.00 91.00
1962 53.00 53.00 56.00 67.00 58.00 74.00 86.00 80.00 77.00 64.00 54.00 43.00 86.00
1963 43.00 50.00 55.00 55.00 74.00 82.00 72.00 86.00 82.00 66.00 43.00 43.00 86.00
1964 39.00 45.00 52.00 51.00 68.00 69.00 82.00 78.00 68.00 67.00 45.00 38.00 a 82.00
1965 41.00 43.00 51.00 60.00 68.00 72.00 88.00 88.00 70.00 65.00 50.00 36.00 88.00
1966 39.00 40.00 58.00 60.00 74.00 72.00 74.00 81.00 79.00 66.00 52.00 40.00 81.00
1967 38.00 39.00 44.00 51.00 64.00 80.00 85.00 88.00 82.00 58.00 50.00 42.00 88.00
1968 49.00 50.00 50.00 62.00 68.00 80.00 88.00 82.00 ----- z ----- z 41.00 o 35.00 d 88.00
1969 43.00 37.00 55.00 55.00 67.00 71.00 79.00 79.00 a 65.00 ----- z 41.00 r 35.00 79.00
1970 37.00 39.00 46.00 42.00 67.00 ----- z ----- z ----- z ----- z ----- z 40.00 l 33.00 67.00
1971 44.00 44.00 38.00 51.00 k ----- z ----- z ----- z ----- z ----- z ----- z 42.00 36.00 51.00
1972 37.00 a 40.00 53.00 52.00 a ----- z ----- z ----- z ----- z ----- z ----- z 40.00 l 40.00 53.00
1973 43.00 45.00 47.00 54.00 a 71.00 83.00 83.00 c 89.00 f 81.00 59.00 c 40.00 c 38.00 a 89.00
1974 42.00 37.00 a 46.00 55.00 60.00 71.00 c 84.00 85.00 d 75.00 b 67.00 45.00 42.00 85.00
1975 46.00 38.00 44.00 52.00 65.00 71.00 b 85.00 77.00 e 75.00 67.00 b 52.00 44.00 85.00
1976 47.00 47.00 43.00 b 54.00 d 64.00 a 73.00 a 79.00 a 74.00 79.00 65.00 47.00 a 48.00 a 79.00
1977 46.00 a 47.00 45.00 71.00 a 61.00 80.00 80.00 b 89.00 b 71.00 b 58.00 g 45.00 b 43.00 a 89.00
1978 36.00 a 45.00 55.00 56.00 i 67.00 g 81.00 d 84.00 d 86.00 i 67.00 d 63.00 a 49.00 b 36.00 c 86.00
1979 37.00 35.00 a 54.00 61.00 a 70.00 h 75.00 c 86.00 a 78.00 d 75.00 e 71.00 f 43.00 h 46.00 a 86.00
1980 43.00 40.00 40.00 65.00 64.00 68.00 d 81.00 b 75.00 k 74.00 i 70.00 b 47.00 i 54.00 f 81.00
1981 40.00 43.00 53.00 60.00 a 71.00 k 73.00 80.00 d 88.00 f 81.00 b 65.00 c 53.00 e 35.00 88.00
1982 40.00 41.00 47.00 60.00 66.00 80.00 86.00 80.00 p 78.00 63.00 j 37.00 n 42.00 j 86.00
1983 49.00 39.00 44.00 58.00 82.00 a 73.00 78.00 n 81.00 67.00 i 60.00 45.00 k 35.00 82.00
1984 53.00 48.00 51.00 54.00 70.00 70.00 a 83.00 82.00 70.00 64.00 a 35.00 34.00 83.00
1985 42.00 44.00 48.00 61.00 70.00 82.00 85.00 p 80.00 63.00 61.00 43.00 42.00 85.00
1986 ----- z 48.00 59.00 58.00 i 83.00 85.00 72.00 j 84.00 u 73.00 67.00 54.00 36.00 85.00
1987 35.00 41.00 52.00 70.00 74.00 83.00 82.00 a 82.00 82.00 k 70.00 50.00 40.00 83.00
1988 36.00 50.00 50.00 56.00 68.00 71.00 81.00 i 81.00 j 90.00 n 71.00 54.00 44.00 90.00
1989 40.00 33.00 40.00 57.00 60.00 74.00 82.00 78.00 73.00 61.00 44.00 q 42.00 82.00
1990 36.00 43.00 49.00 61.00 63.00 73.00 82.00 q 83.00 72.00 a 59.00 45.00 o 36.00 83.00
1991 38.00 45.00 48.00 54.00 53.00 65.00 83.00 i 79.00 70.00 l 70.00 44.00 j 37.00 83.00
1992 38.00 40.00 53.00 58.00 76.00 83.00 k 82.00 83.00 n 68.00 66.00 38.00 m 37.00 a 83.00
1993 38.00 38.00 45.00 46.00 75.00 69.00 65.00 r 79.00 72.00 k 69.00 a 42.00 l 38.00 i 79.00
1994 41.00 38.00 54.00 58.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 58.00
Period of Record Statistics
MEAN 41.07 42.47 49.58 58.00 68.22 75.57 82.53 81.76 74.79 65.27 48.47 40.33 85.73
S.D. 4.54 4.74 5.42 6.52 6.83 5.81 4.73 4.21 5.65 3.95 5.01 4.29 3.95
SKEW 0.80 0.26 0.08 -0.03 0.20 0.54 -0.80 0.10 -0.29 -0.27 -0.57 0.23 -0.34
MAX 53.00 53.00 63.00 71.00 83.00 91.00 90.00 89.00 83.00 72.00 56.00 49.00 91.00
MIN 32.00 33.00 38.00 42.00 53.00 65.00 72.00 74.00 63.00 58.00 35.00 33.00 79.00
NO YRS 43 43 43 38 32 35 30 29 29 33 30 40 11