SKAGIT POWER PLANT, WASHINGTON

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(457690)

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 195812
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
1931 55.00 60.00 59.00 85.00 90.00 94.00 100.00 97.00 79.00 74.00 59.00 48.00 100.00
1932 45.00 49.00 61.00 76.00 82.00 99.00 88.00 92.00 90.00 82.00 53.00 51.00 99.00
1933 43.00 40.00 60.00 74.00 72.00 92.00 102.00 105.00 90.00 a 89.00 72.00 49.00 105.00
1934 53.00 a 70.00 78.00 91.00 91.00 100.00 93.00 101.00 95.00 80.00 a 59.00 65.00 101.00
1935 50.00 55.00 55.00 74.00 83.00 88.00 104.00 100.00 92.00 83.00 60.00 55.00 104.00
1936 49.00 42.00 57.00 78.00 96.00 92.00 88.00 96.00 85.00 77.00 56.00 44.00 96.00
1937 40.00 51.00 63.00 67.00 87.00 97.00 104.00 89.00 98.00 74.00 61.00 48.00 104.00
1938 47.00 e 64.00 61.00 79.00 89.00 90.00 107.00 96.00 94.00 78.00 54.00 49.00 107.00
1939 49.00 51.00 73.00 83.00 93.00 94.00 98.00 100.00 c 86.00 70.00 61.00 52.00 100.00
1940 56.00 56.00 73.00 83.00 89.00 95.00 92.00 102.00 97.00 73.00 54.00 56.00 102.00
1941 54.00 71.00 75.00 84.00 89.00 98.00 109.00 96.00 80.00 68.00 60.00 57.00 109.00
1942 57.00 55.00 75.00 83.00 84.00 103.00 106.00 99.00 90.00 75.00 58.00 47.00 106.00
1943 49.00 61.00 58.00 82.00 79.00 89.00 90.00 91.00 91.00 81.00 58.00 50.00 91.00
1944 51.00 53.00 64.00 80.00 91.00 93.00 105.00 101.00 99.00 75.00 56.00 50.00 105.00
1945 51.00 56.00 65.00 72.00 90.00 90.00 95.00 104.00 92.00 79.00 51.00 46.00 104.00
1946 45.00 56.00 65.00 81.00 88.00 88.00 105.00 96.00 90.00 70.00 56.00 43.00 105.00
1947 46.00 61.00 74.00 85.00 a 98.00 84.00 99.00 87.00 90.00 66.00 54.00 48.00 99.00
1948 46.00 48.00 69.00 79.00 91.00 98.00 a 94.00 a 93.00 a 88.00 76.00 53.00 43.00 98.00
1949 42.00 a 55.00 a 59.00 76.00 88.00 92.00 96.00 93.00 90.00 66.00 68.00 49.00 96.00
1950 44.00 48.00 57.00 74.00 82.00 91.00 95.00 95.00 90.00 66.00 56.00 55.00 95.00
1951 44.00 52.00 64.00 81.00 88.00 95.00 a 102.00 93.00 a 90.00 76.00 59.00 53.00 102.00
1952 44.00 54.00 64.00 78.00 a 90.00 86.00 f 98.00 98.00 90.00 82.00 60.00 46.00 e 98.00
1953 53.00 61.00 73.00 b 74.00 87.00 80.00 98.00 97.00 89.00 72.00 60.00 50.00 98.00
1954 44.00 d 55.00 61.00 67.00 83.00 a 83.00 88.00 84.00 a 80.00 72.00 67.00 53.00 88.00
1955 48.00 48.00 61.00 68.00 h ----- z 65.00 w 90.00 93.00 99.00 73.00 56.00 46.00 99.00
1956 45.00 47.00 57.00 79.00 94.00 83.00 100.00 a 93.00 90.00 72.00 a 55.00 52.00 100.00
1957 47.00 53.00 62.00 85.00 89.00 85.00 j 86.00 b 82.00 90.00 79.00 58.00 52.00 90.00
1958 51.00 56.00 65.00 75.00 92.00 98.00 104.00 95.00 92.00 a 73.00 57.00 53.00 104.00
Period of Record Statistics
MEAN 48.14 54.57 64.57 78.70 87.96 92.24 97.71 95.29 90.21 75.04 58.25 50.36 101.25
S.D. 4.47 7.16 6.59 5.59 5.41 5.82 6.62 5.52 5.07 5.61 4.67 4.72 4.30
SKEW 0.30 0.33 0.57 -0.21 -0.86 -0.31 -0.15 -0.50 -0.42 0.31 1.21 0.89 -0.39
MAX 57.00 71.00 78.00 91.00 98.00 103.00 109.00 105.00 99.00 89.00 72.00 65.00 109.00
MIN 40.00 40.00 55.00 67.00 72.00 80.00 86.00 82.00 79.00 66.00 51.00 43.00 91.00
NO YRS 28 28 28 27 27 25 28 28 28 28 28 28 24