LEWISTON WATER PLANT, IDAHO

Monthly Extreme Minimum Temperature (Degrees Fahrenheit)

(105236)

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195512
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
1894 ----- z 5.00 21.00 27.00 30.00 38.00 44.00 47.00 35.00 28.00 20.00 a 10.00 5.00
1895 2.00 15.00 14.00 25.00 30.00 40.00 a 41.00 43.00 29.00 21.00 20.00 n 17.00 u 2.00
1896 12.00 25.00 13.00 27.00 34.00 a 39.00 c 51.00 d 53.00 f ----- z ----- z 0.00 e 20.00 0.00
1897 0.00 24.00 15.00 32.00 37.00 e 38.00 b 44.00 45.00 ----- z ----- z 18.00 a ----- z 0.00
1898 13.00 22.00 16.00 i 33.00 36.00 41.00 55.00 46.00 41.00 ----- z 26.00 5.00 5.00
1899 7.00 1.00 28.00 29.00 36.00 45.00 ----- z 52.00 40.00 36.00 32.00 17.00 1.00
1900 22.00 3.00 28.00 29.00 29.00 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z 3.00
1901 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1902 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1903 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1904 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1905 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1906 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1907 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1908 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1909 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1910 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1911 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1912 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1913 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1914 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1915 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1916 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1917 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1918 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1919 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1920 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1921 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1922 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1923 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1924 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1925 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1926 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1927 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1928 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1929 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1930 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1931 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1932 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1933 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1934 29.00 28.00 30.00 32.00 39.00 43.00 50.00 48.00 30.00 33.00 32.00 27.00 27.00
1935 -4.00 20.00 23.00 24.00 35.00 43.00 47.00 46.00 37.00 16.00 9.00 19.00 -4.00
1936 5.00 -12.00 24.00 22.00 40.00 48.00 54.00 49.00 36.00 27.00 13.00 14.00 -12.00
1937 -18.00 1.00 27.00 34.00 36.00 43.00 53.00 43.00 39.00 37.00 29.00 20.00 -18.00
1938 16.00 18.00 27.00 27.00 34.00 42.00 52.00 50.00 47.00 33.00 18.00 17.00 16.00
1939 24.00 5.00 23.00 30.00 39.00 42.00 52.00 50.00 40.00 33.00 24.00 23.00 5.00
1940 18.00 26.00 29.00 34.00 41.00 49.00 56.00 52.00 50.00 38.00 18.00 10.00 10.00
1941 18.00 23.00 24.00 33.00 40.00 48.00 57.00 42.00 37.00 32.00 23.00 16.00 16.00
1942 -2.00 20.00 25.00 34.00 35.00 43.00 54.00 44.00 40.00 28.00 27.00 23.00 -2.00
1943 0.00 7.00 18.00 35.00 34.00 41.00 50.00 48.00 37.00 a 25.00 26.00 20.00 0.00
1944 14.00 21.00 20.00 33.00 36.00 44.00 b 48.00 48.00 40.00 34.00 22.00 14.00 14.00
1945 25.00 25.00 10.00 25.00 40.00 39.00 47.00 41.00 34.00 26.00 21.00 11.00 10.00
1946 19.00 24.00 25.00 27.00 32.00 43.00 49.00 45.00 33.00 23.00 21.00 17.00 17.00
1947 -2.00 19.00 21.00 30.00 40.00 a 42.00 51.00 47.00 38.00 31.00 ----- z 25.00 -2.00
1948 ----- z ----- z ----- z ----- z ----- z ----- z 47.00 48.00 34.00 25.00 20.00 6.00 d 6.00
1949 -9.00 9.00 24.00 29.00 33.00 41.00 47.00 46.00 35.00 22.00 28.00 10.00 -9.00
1950 -21.00 -13.00 18.00 29.00 34.00 41.00 a 49.00 50.00 a 32.00 28.00 b 26.00 28.00 -21.00
1951 4.00 12.00 22.00 23.00 33.00 35.00 48.00 45.00 39.00 a 23.00 21.00 14.00 4.00
1952 3.00 i 20.00 23.00 b 26.00 39.00 a 40.00 45.00 44.00 39.00 31.00 9.00 15.00 3.00
1953 30.00 23.00 24.00 25.00 35.00 40.00 49.00 49.00 40.00 29.00 24.00 23.00 23.00
1954 -7.00 23.00 18.00 30.00 26.00 39.00 48.00 47.00 33.00 27.00 24.00 11.00 -7.00
1955 21.00 17.00 7.00 26.00 35.00 44.00 44.00 47.00 38.00 34.00 -2.00 8.00 -2.00
Period of Record Statistics
MEAN 8.31 14.68 21.52 28.93 35.29 41.89 49.33 46.74 37.42 28.80 20.35 16.27 3.53
S.D. 13.94 11.20 5.83 3.71 3.74 3.20 3.99 2.86 4.63 5.45 8.57 6.35 13.59
SKEW -0.33 -1.04 -0.79 -0.03 -0.47 0.40 0.03 -0.05 0.64 -0.30 -1.14 0.07 -0.09
MAX 30.00 28.00 30.00 35.00 41.00 49.00 57.00 52.00 50.00 38.00 32.00 28.00 27.00
MIN -21.00 -13.00 7.00 22.00 26.00 35.00 41.00 41.00 29.00 16.00 -2.00 5.00 -21.00
NO YRS 26 28 27 28 28 27 27 27 26 25 26 26 19