CHELAN sta,

Monthly Extreme Maximum Temperature (Degrees Fahrenheit)

(454430)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195804
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
1891 ----- z ----- z ----- z ----- z ----- z ----- z 100.00 96.00 87.00 71.00 ----- z 47.00 100.00
1892 39.00 ----- z 63.00 65.00 86.00 98.00 97.00 98.00 86.00 77.00 ----- z ----- z 98.00
1893 50.00 43.00 53.00 68.00 76.00 a 86.00 93.00 a 95.00 88.00 66.00 57.00 48.00 95.00
1894 50.00 52.00 58.00 72.00 88.00 86.00 96.00 97.00 89.00 68.00 59.00 47.00 97.00
1895 45.00 59.00 59.00 76.00 83.00 95.00 96.00 95.00 86.00 72.00 58.00 53.00 96.00
1896 50.00 54.00 68.00 70.00 79.00 97.00 93.00 94.00 88.00 70.00 63.00 50.00 97.00
1897 45.00 44.00 55.00 78.00 91.00 87.00 95.00 99.00 82.00 76.00 59.00 50.00 99.00
1898 40.00 55.00 58.00 72.00 82.00 87.00 97.00 103.00 83.00 ----- z 60.00 45.00 103.00
1899 48.00 57.00 60.00 70.00 81.00 86.00 99.00 89.00 85.00 71.00 55.00 b 52.00 99.00
1900 50.00 54.00 62.00 80.00 84.00 93.00 99.00 89.00 85.00 68.00 58.00 57.00 99.00
1901 48.00 60.00 59.00 ----- z 83.00 86.00 92.00 95.00 77.00 74.00 58.00 48.00 95.00
1902 52.00 48.00 59.00 69.00 87.00 88.00 93.00 b 98.00 90.00 75.00 54.00 46.00 98.00
1903 49.00 46.00 k 56.00 68.00 85.00 96.00 95.00 96.00 80.00 70.00 c 56.00 46.00 96.00
1904 48.00 47.00 54.00 80.00 80.00 95.00 98.00 102.00 93.00 81.00 60.00 48.00 a 102.00
1905 47.00 52.00 a 65.00 a 82.00 82.00 87.00 100.00 100.00 88.00 66.00 59.00 46.00 100.00
1906 43.00 52.00 63.00 82.00 87.00 93.00 104.00 100.00 90.00 78.00 64.00 49.00 104.00
1907 41.00 48.00 59.00 73.00 87.00 92.00 100.00 95.00 o 92.00 79.00 60.00 48.00 a 100.00
1908 46.00 47.00 65.00 75.00 79.00 95.00 100.00 98.00 91.00 75.00 64.00 46.00 100.00
1909 46.00 b 46.00 64.00 a 69.00 85.00 88.00 94.00 100.00 95.00 75.00 58.00 39.00 100.00
1910 45.00 50.00 64.00 86.00 92.00 b 90.00 99.00 95.00 86.00 73.00 62.00 45.00 99.00
1911 51.00 42.00 74.00 79.00 91.00 90.00 103.00 94.00 90.00 a 76.00 61.00 a 42.00 a 103.00
1912 45.00 50.00 70.00 69.00 88.00 96.00 99.00 94.00 88.00 74.00 58.00 54.00 99.00
1913 50.00 46.00 57.00 77.00 88.00 92.00 102.00 102.00 86.00 75.00 54.00 43.00 102.00
1914 48.00 53.00 64.00 78.00 93.00 94.00 102.00 102.00 90.00 69.00 59.00 39.00 102.00
1915 38.00 49.00 68.00 84.00 87.00 97.00 100.00 101.00 88.00 75.00 58.00 45.00 101.00
1916 48.00 46.00 58.00 78.00 80.00 94.00 94.00 98.00 94.00 75.00 63.00 47.00 98.00
1917 47.00 47.00 53.00 69.00 85.00 93.00 105.00 103.00 91.00 83.00 59.00 60.00 105.00
1918 51.00 54.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 76.00 b 57.00 55.00 c 76.00
1919 47.00 s 50.00 71.00 82.00 a 79.00 a 88.00 a 96.00 c 99.00 e 86.00 a 80.00 a 59.00 44.00 j 99.00
1920 59.00 52.00 ----- z ----- z ----- z 84.00 g 100.00 d 100.00 b 88.00 c 67.00 c 52.00 e 45.00 c 100.00
1921 51.00 a 46.00 66.00 a 72.00 d 85.00 k ----- z ----- z ----- z 76.00 a 73.00 k 61.00 43.00 f 85.00
1922 35.00 41.00 53.00 72.00 g 87.00 e 95.00 98.00 d 97.00 b 91.00 e 74.00 i ----- z ----- z 98.00
1923 ----- z 45.00 a 63.00 78.00 g 82.00 92.00 101.00 96.00 90.00 79.00 a 58.00 45.00 101.00
1924 41.00 52.00 60.00 76.00 92.00 98.00 102.00 97.00 93.00 75.00 57.00 65.00 102.00
1925 50.00 53.00 64.00 75.00 86.00 102.00 102.00 101.00 91.00 71.00 55.00 46.00 102.00
1926 40.00 60.00 70.00 83.00 84.00 101.00 106.00 97.00 87.00 71.00 58.00 58.00 106.00
1927 47.00 49.00 59.00 76.00 78.00 89.00 102.00 95.00 80.00 68.00 56.00 53.00 102.00
1928 56.00 49.00 63.00 73.00 91.00 99.00 105.00 97.00 94.00 76.00 59.00 47.00 105.00
1929 35.00 45.00 63.00 76.00 91.00 92.00 99.00 100.00 95.00 76.00 59.00 50.00 a 100.00
1930 44.00 57.00 70.00 75.00 83.00 85.00 102.00 102.00 91.00 74.00 56.00 40.00 102.00
1931 45.00 51.00 59.00 81.00 87.00 97.00 102.00 98.00 88.00 75.00 c 59.00 42.00 102.00
1932 51.00 59.00 a 65.00 76.00 80.00 95.00 94.00 d 98.00 a 88.00 85.00 60.00 61.00 b 98.00
1933 51.00 b 53.00 c 57.00 b 77.00 80.00 92.00 99.00 100.00 a 86.00 74.00 63.00 58.00 100.00
1934 52.00 d 55.00 66.00 85.00 a 89.00 a 94.00 b 106.00 d 100.00 b 89.00 e 75.00 e 58.00 48.00 106.00
1935 50.00 a 48.00 65.00 70.00 83.00 88.00 b 98.00 94.00 95.00 77.00 a 58.00 b 40.00 i 98.00
1936 50.00 53.00 62.00 a 78.00 90.00 96.00 100.00 95.00 88.00 a 75.00 52.00 56.00 100.00
1937 26.00 42.00 60.00 71.00 85.00 91.00 97.00 97.00 88.00 70.00 60.00 c 52.00 97.00
1938 43.00 42.00 62.00 77.00 86.00 95.00 101.00 94.00 95.00 73.00 55.00 49.00 101.00
1939 48.00 49.00 70.00 85.00 87.00 96.00 106.00 97.00 88.00 74.00 57.00 52.00 106.00
1940 47.00 50.00 68.00 75.00 89.00 b 96.00 98.00 a 97.00 88.00 71.00 a 52.00 50.00 98.00
1941 38.00 a 48.00 68.00 a 78.00 86.00 90.00 101.00 91.00 75.00 70.00 64.00 56.00 a 101.00
1942 46.00 48.00 65.00 74.00 79.00 94.00 100.00 97.00 90.00 73.00 55.00 46.00 100.00
1943 54.00 50.00 64.00 78.00 80.00 89.00 97.00 91.00 b 89.00 77.00 c 56.00 56.00 a 97.00
1944 52.00 51.00 68.00 78.00 85.00 92.00 100.00 88.00 92.00 a 74.00 55.00 45.00 100.00
1945 51.00 53.00 a 63.00 a 72.00 a 91.00 93.00 100.00 95.00 88.00 76.00 60.00 47.00 100.00
1946 38.00 d 45.00 c 60.00 g 66.00 e 85.00 92.00 96.00 94.00 81.00 72.00 49.00 56.00 96.00
1947 46.00 54.00 68.00 82.00 95.00 90.00 95.00 89.00 83.00 74.00 53.00 41.00 j 95.00
1948 ----- z ----- z ----- z ----- z ----- z 91.00 90.00 89.00 a 87.00 65.00 52.00 44.00 91.00
1949 36.00 49.00 55.00 a 77.00 90.00 95.00 99.00 96.00 95.00 75.00 62.00 56.00 99.00
1950 49.00 53.00 56.00 72.00 83.00 91.00 98.00 97.00 92.00 68.00 53.00 47.00 98.00
1951 55.00 54.00 57.00 76.00 88.00 91.00 97.00 97.00 85.00 73.00 49.00 50.00 97.00
1952 45.00 47.00 67.00 80.00 89.00 91.00 102.00 100.00 88.00 79.00 56.00 46.00 102.00
1953 58.00 61.00 63.00 69.00 84.00 81.00 97.00 95.00 89.00 71.00 65.00 52.00 97.00
1954 48.00 54.00 66.00 a 64.00 84.00 86.00 93.00 97.00 85.00 70.00 59.00 47.00 97.00
1955 47.00 50.00 54.00 71.00 78.00 95.00 96.00 94.00 95.00 68.00 61.00 46.00 96.00
1956 48.00 46.00 58.00 71.00 89.00 88.00 99.00 98.00 85.00 74.00 52.00 59.00 99.00
1957 35.00 57.00 62.00 80.00 91.00 90.00 94.00 92.00 89.00 73.00 57.00 48.00 94.00
1958 44.00 54.00 55.00 72.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 72.00
Period of Record Statistics
MEAN 46.42 50.47 62.11 75.28 85.40 92.08 98.66 96.62 88.05 73.53 57.73 49.39 99.96
S.D. 5.97 4.76 5.14 5.26 4.37 4.21 3.63 3.60 4.48 4.06 3.60 5.57 2.78
SKEW -0.77 0.15 0.03 0.00 -0.07 -0.08 -0.02 -0.47 -0.74 0.21 -0.28 0.57 0.23
MAX 59.00 61.00 74.00 86.00 95.00 102.00 106.00 103.00 95.00 85.00 65.00 65.00 106.00
MIN 26.00 41.00 53.00 64.00 76.00 81.00 90.00 88.00 75.00 65.00 49.00 39.00 94.00
NO YRS 64 64 63 61 62 63 65 64 66 64 64 61 47