CHELAN sta,

Monthly Extreme Minimum 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 49.00 47.00 37.00 34.00 ----- z 14.00 a 14.00
1892 4.00 ----- z 29.00 30.00 38.00 37.00 46.00 50.00 42.00 33.00 ----- z ----- z 4.00
1893 -18.00 -15.00 a 13.00 32.00 39.00 a 41.00 46.00 a 50.00 35.00 25.00 20.00 b 17.00 -18.00
1894 5.00 3.00 23.00 29.00 36.00 41.00 54.00 55.00 36.00 30.00 23.00 4.00 3.00
1895 7.00 9.00 21.00 29.00 34.00 40.00 50.00 48.00 34.00 25.00 20.00 11.00 7.00
1896 8.00 13.00 9.00 28.00 35.00 45.00 52.00 50.00 41.00 33.00 -3.00 20.00 -3.00
1897 3.00 8.00 5.00 33.00 39.00 41.00 47.00 48.00 39.00 31.00 9.00 7.00 3.00
1898 7.00 18.00 21.00 32.00 35.00 44.00 51.00 50.00 36.00 ----- z 23.00 8.00 7.00
1899 -7.00 -3.00 24.00 28.00 35.00 39.00 46.00 44.00 44.00 32.00 34.00 12.00 -7.00
1900 17.00 6.00 29.00 32.00 40.00 47.00 49.00 46.00 38.00 33.00 5.00 20.00 5.00
1901 2.00 a 11.00 24.00 a ----- z 34.00 42.00 50.00 54.00 39.00 35.00 29.00 a 15.00 2.00
1902 3.00 11.00 27.00 31.00 43.00 40.00 47.00 c 50.00 37.00 34.00 20.00 14.00 3.00
1903 8.00 4.00 17.00 30.00 38.00 50.00 49.00 44.00 37.00 26.00 15.00 a 4.00 4.00
1904 9.00 9.00 15.00 32.00 32.00 47.00 55.00 52.00 43.00 30.00 a 29.00 13.00 a 9.00
1905 4.00 b 0.00 30.00 34.00 37.00 46.00 52.00 50.00 39.00 25.00 20.00 16.00 0.00
1906 7.00 21.00 13.00 30.00 39.00 40.00 57.00 52.00 41.00 29.00 25.00 18.00 7.00
1907 -3.00 9.00 20.00 30.00 41.00 43.00 50.00 45.00 42.00 41.00 29.00 15.00 -3.00
1908 11.00 0.00 20.00 24.00 38.00 41.00 50.00 44.00 33.00 32.00 26.00 17.00 0.00
1909 -13.00 15.00 24.00 32.00 35.00 45.00 49.00 45.00 41.00 34.00 19.00 6.00 -13.00
1910 2.00 7.00 26.00 34.00 40.00 d 42.00 47.00 42.00 40.00 27.00 19.00 19.00 2.00
1911 -2.00 7.00 13.00 32.00 39.00 45.00 51.00 53.00 35.00 27.00 6.00 a 12.00 a -2.00
1912 -2.00 17.00 18.00 35.00 38.00 45.00 49.00 47.00 40.00 30.00 25.00 18.00 -2.00
1913 4.00 3.00 16.00 31.00 36.00 45.00 45.00 47.00 42.00 27.00 27.00 21.00 3.00
1914 12.00 3.00 21.00 30.00 38.00 40.00 49.00 50.00 40.00 36.00 22.00 7.00 3.00
1915 5.00 15.00 28.00 35.00 35.00 45.00 a 48.00 55.00 42.00 35.00 15.00 5.00 5.00
1916 -11.00 3.00 19.00 31.00 35.00 41.00 45.00 51.00 39.00 29.00 10.00 -2.00 -11.00
1917 -4.00 2.00 8.00 29.00 34.00 44.00 43.00 50.00 42.00 25.00 26.00 6.00 -4.00
1918 6.00 5.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z 34.00 b 20.00 a 17.00 c 5.00
1919 20.00 s 7.00 14.00 30.00 a 33.00 a 40.00 b 46.00 c 53.00 e 33.00 a 21.00 a 15.00 -12.00 g -12.00
1920 9.00 21.00 ----- z ----- z ----- z 41.00 h 51.00 b 43.00 b 40.00 f 27.00 d 24.00 e 17.00 c 9.00
1921 6.00 a 11.00 24.00 a 28.00 d 36.00 j ----- z ----- z ----- z 37.00 b 25.00 j 10.00 8.00 e 6.00
1922 -3.00 -2.00 6.00 26.00 g 29.00 e 48.00 54.00 d 49.00 b 44.00 e 29.00 h ----- z ----- z -3.00
1923 ----- z -1.00 a 20.00 a 34.00 g 38.00 42.00 55.00 55.00 45.00 30.00 a 27.00 d -5.00 a -5.00
1924 -2.00 22.00 26.00 31.00 40.00 a 46.00 56.00 53.00 44.00 34.00 20.00 -1.00 -2.00
1925 12.00 27.00 30.00 38.00 41.00 39.00 56.00 49.00 39.00 32.00 24.00 27.00 12.00
1926 20.00 25.00 27.00 31.00 37.00 49.00 56.00 52.00 30.00 33.00 27.00 4.00 4.00
1927 -2.00 18.00 26.00 27.00 37.00 55.00 55.00 52.00 40.00 31.00 26.00 -2.00 -2.00
1928 4.00 18.00 24.00 30.00 34.00 47.00 51.00 52.00 44.00 33.00 29.00 14.00 4.00
1929 0.00 0.00 30.00 27.00 40.00 44.00 54.00 50.00 43.00 32.00 17.00 18.00 0.00
1930 -4.00 16.00 23.00 38.00 38.00 47.00 53.00 55.00 42.00 31.00 21.00 18.00 -4.00
1931 21.00 19.00 a 27.00 32.00 40.00 a 47.00 56.00 55.00 41.00 b 37.00 a 15.00 9.00 9.00
1932 7.00 1.00 24.00 37.00 d 41.00 45.00 a 51.00 c 49.00 40.00 30.00 30.00 7.00 b 1.00
1933 13.00 -5.00 27.00 30.00 35.00 41.00 53.00 51.00 37.00 32.00 26.00 18.00 -5.00
1934 20.00 b 25.00 b 30.00 36.00 40.00 a 45.00 a 49.00 c 49.00 a 36.00 a 36.00 27.00 b 13.00 13.00
1935 -5.00 a 18.00 21.00 23.00 38.00 46.00 d 48.00 47.00 b 40.00 10.00 10.00 a 20.00 k -5.00
1936 9.00 -9.00 a 21.00 24.00 41.00 b 47.00 a 35.00 32.00 37.00 a 17.00 18.00 14.00 -9.00
1937 -2.00 2.00 24.00 31.00 38.00 43.00 53.00 47.00 40.00 39.00 27.00 16.00 -2.00
1938 15.00 14.00 26.00 32.00 39.00 43.00 50.00 48.00 46.00 33.00 19.00 15.00 14.00
1939 18.00 2.00 19.00 31.00 40.00 44.00 51.00 52.00 a 44.00 30.00 29.00 23.00 2.00
1940 17.00 d 22.00 28.00 b 34.00 39.00 a 49.00 53.00 a 54.00 47.00 33.00 c 19.00 14.00 14.00
1941 18.00 24.00 28.00 a 36.00 40.00 42.00 52.00 49.00 41.00 35.00 27.00 12.00 12.00
1942 9.00 a 21.00 28.00 36.00 36.00 47.00 50.00 49.00 42.00 a 32.00 25.00 18.00 a 9.00
1943 -3.00 b 14.00 19.00 33.00 38.00 44.00 49.00 51.00 46.00 30.00 d 30.00 17.00 -3.00
1944 14.00 20.00 24.00 33.00 39.00 50.00 52.00 51.00 41.00 36.00 27.00 11.00 11.00
1945 15.00 20.00 17.00 28.00 32.00 46.00 a 51.00 a 48.00 a 36.00 a 30.00 a 14.00 15.00 14.00
1946 10.00 11.00 a 20.00 b 28.00 c 34.00 41.00 49.00 49.00 39.00 26.00 14.00 11.00 10.00
1947 0.00 7.00 25.00 29.00 41.00 47.00 48.00 49.00 43.00 34.00 26.00 19.00 d 0.00
1948 ----- z ----- z ----- z ----- z ----- z 50.00 43.00 48.00 35.00 27.00 23.00 0.00 0.00
1949 -7.00 -2.00 22.00 a 30.00 34.00 42.00 47.00 46.00 40.00 26.00 31.00 4.00 -7.00
1950 -14.00 -11.00 18.00 29.00 35.00 44.00 50.00 51.00 36.00 32.00 21.00 14.00 -14.00
1951 -3.00 1.00 12.00 25.00 36.00 42.00 48.00 46.00 39.00 27.00 23.00 3.00 -3.00
1952 -2.00 14.00 21.00 26.00 31.00 41.00 47.00 45.00 44.00 33.00 17.00 18.00 -2.00
1953 19.00 25.00 27.00 27.00 36.00 44.00 51.00 49.00 39.00 33.00 26.00 25.00 19.00
1954 -1.00 18.00 20.00 29.00 28.00 41.00 49.00 47.00 39.00 30.00 28.00 18.00 -1.00
1955 12.00 14.00 4.00 29.00 35.00 46.00 49.00 51.00 40.00 28.00 3.00 5.00 3.00
1956 -1.00 -5.00 16.00 29.00 37.00 42.00 53.00 48.00 41.00 31.00 16.00 0.00 -5.00
1957 -8.00 3.00 25.00 34.00 44.00 46.00 51.00 50.00 39.00 32.00 24.00 20.00 -8.00
1958 19.00 30.00 23.00 34.00 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 19.00
Period of Record Statistics
MEAN 4.59 9.78 21.23 30.79 37.05 44.10 50.02 49.12 39.74 30.55 21.06 12.24 0.80
S.D. 9.14 10.07 6.42 3.32 3.18 3.33 3.74 3.79 3.44 4.86 7.47 7.13 7.58
SKEW -0.13 -0.15 -0.85 0.03 -0.48 0.51 -0.85 -1.38 -0.29 -1.41 -0.97 -0.46 -0.03
MAX 21.00 30.00 30.00 38.00 44.00 55.00 57.00 55.00 47.00 41.00 34.00 27.00 19.00
MIN -18.00 -15.00 4.00 23.00 28.00 37.00 35.00 32.00 30.00 10.00 -3.00 -5.00 -18.00
NO YRS 64 65 64 61 62 63 65 65 65 64 64 63 50