LEWISTON WATER PLANT, IDAHO

Monthly Extreme Maximum 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 58.00 68.00 83.00 91.00 95.00 105.00 106.00 92.00 80.00 65.00 a 52.00 106.00
1895 52.00 64.00 71.00 90.00 92.00 103.00 a 105.00 106.00 94.00 85.00 a 64.00 60.00 106.00
1896 62.00 70.00 76.00 78.00 a 93.00 a 103.00 a 105.00 e 98.00 e ----- z ----- z 67.00 g 59.00 105.00
1897 57.00 67.00 63.00 90.00 100.00 e 94.00 b 106.00 111.00 a ----- z ----- z 61.00 a 55.00 111.00
1898 45.00 62.00 58.00 i 82.00 a 86.00 92.00 100.00 106.00 88.00 ----- z 60.00 54.00 106.00
1899 60.00 56.00 61.00 80.00 74.00 88.00 ----- z 104.00 91.00 74.00 68.00 58.00 104.00
1900 59.00 59.00 68.00 80.00 84.00 a ----- z ----- z ----- z ----- z ----- z ----- z ----- z 84.00
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 60.00 62.00 78.00 93.00 104.00 101.00 114.00 103.00 98.00 92.00 74.00 62.00 114.00
1935 59.00 59.00 72.00 75.00 90.00 98.00 116.00 109.00 101.00 88.00 56.00 55.00 116.00
1936 53.00 57.00 71.00 90.00 103.00 109.00 112.00 107.00 93.00 84.00 58.00 57.00 112.00
1937 43.00 56.00 68.00 81.00 93.00 103.00 110.00 106.00 101.00 79.00 65.00 59.00 110.00
1938 58.00 57.00 66.00 84.00 96.00 98.00 113.00 105.00 105.00 88.00 66.00 58.00 113.00
1939 54.00 60.00 74.00 98.00 100.00 108.00 117.00 107.00 102.00 80.00 62.00 65.00 117.00
1940 54.00 60.00 73.00 80.00 98.00 107.00 111.00 111.00 100.00 76.00 59.00 56.00 111.00
1941 55.00 64.00 73.00 82.00 a 94.00 98.00 112.00 104.00 86.00 71.00 65.00 57.00 112.00
1942 49.00 55.00 77.00 88.00 95.00 96.00 106.00 108.00 101.00 87.00 63.00 56.00 108.00
1943 58.00 59.00 69.00 86.00 86.00 95.00 105.00 100.00 97.00 a 94.00 66.00 59.00 105.00
1944 56.00 60.00 73.00 85.00 95.00 101.00 107.00 101.00 108.00 85.00 64.00 58.00 108.00
1945 65.00 60.00 69.00 83.00 91.00 98.00 105.00 104.00 100.00 82.00 65.00 57.00 105.00
1946 53.00 59.00 72.00 99.00 90.00 99.00 110.00 108.00 92.00 73.00 59.00 62.00 110.00
1947 55.00 67.00 77.00 87.00 a 97.00 96.00 105.00 101.00 98.00 86.00 ----- z 54.00 105.00
1948 ----- z ----- z ----- z ----- z ----- z ----- z 96.00 96.00 99.00 81.00 58.00 50.00 b 99.00
1949 44.00 58.00 64.00 85.00 93.00 97.00 107.00 103.00 98.00 73.00 66.00 55.00 107.00
1950 55.00 57.00 67.00 74.00 88.00 97.00 101.00 103.00 104.00 83.00 75.00 55.00 104.00
1951 55.00 55.00 68.00 80.00 94.00 95.00 106.00 102.00 95.00 a 82.00 56.00 51.00 106.00
1952 49.00 i 61.00 74.00 87.00 90.00 95.00 104.00 102.00 96.00 85.00 63.00 54.00 104.00
1953 65.00 62.00 77.00 85.00 89.00 85.00 104.00 105.00 101.00 80.00 65.00 55.00 105.00
1954 55.00 62.00 68.00 80.00 97.00 93.00 102.00 101.00 93.00 79.00 65.00 53.00 102.00
1955 47.00 58.00 67.00 77.00 86.00 99.00 106.00 100.00 99.00 74.00 64.00 55.00 106.00
Period of Record Statistics
MEAN 54.92 60.14 70.52 84.36 92.46 97.89 107.04 104.18 97.38 81.64 63.54 56.46 108.85
S.D. 5.79 3.71 4.52 6.12 6.24 5.51 4.91 3.65 5.22 6.00 4.61 3.38 4.18
SKEW -0.39 0.89 -0.12 0.64 -0.60 0.01 0.15 -0.10 -0.24 0.05 0.56 0.43 0.38
MAX 65.00 70.00 78.00 99.00 104.00 109.00 117.00 111.00 108.00 94.00 75.00 65.00 117.00
MIN 43.00 55.00 61.00 74.00 74.00 85.00 96.00 96.00 86.00 71.00 56.00 50.00 102.00
NO YRS 26 28 27 28 28 27 27 28 26 25 26 28 20