LEWISTON WTP, IDAHO

Monthly Total Growing Degree Days

(105236)

Base Temperature = 50 F

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.
Months with 5 missing days or less use mean for missing day(s)
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 0.00 z 0.00 5.50 117.50 340.50 446.00 752.50 766.00 322.00 84.00 13.45 a 0.00 2847.45
1895 0.00 0.50 10.00 173.50 285.50 524.48 a 726.50 705.00 263.00 155.00 a 0.50 n 0.00 u 2843.48
1896 0.00 5.00 39.00 72.41 a 205.24 b 526.67 c 847.73 e 572.50 g 0.00 z 0.00 z 15.50 h 0.00 1696.05
1897 0.00 0.00 0.50 164.00 576.48 e 490.18 b 599.50 882.98 a 0.00 z 0.00 z 2.07 a 0.00 z 2715.71
1898 0.00 2.00 0.00 i 143.79 a 264.50 490.00 887.00 855.00 542.00 0.00 z 0.00 0.00 3184.29
1899 0.00 0.00 1.50 79.00 270.00 481.50 0.00 z 788.50 412.50 159.00 23.00 0.00 2215.00
1900 0.00 0.00 24.00 105.00 302.77 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 431.77
1901 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1902 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1903 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1904 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1905 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1906 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1907 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1908 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1909 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1910 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1911 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1912 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1913 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1914 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1915 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1916 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1917 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1918 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1919 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1920 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1921 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1922 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1923 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1924 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1925 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1926 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1927 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1928 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1929 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1930 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1931 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1932 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1933 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1934 6.00 1.00 85.50 275.00 478.50 577.50 825.50 772.50 360.00 144.00 20.00 0.00 3545.50
1935 0.00 0.00 6.00 59.00 302.00 568.50 819.00 738.00 543.50 164.00 0.00 0.00 3200.00
1936 0.00 0.00 1.50 249.50 496.00 649.50 892.00 789.00 395.00 143.50 0.00 0.00 3616.00
1937 0.00 0.00 8.50 52.50 360.50 542.50 915.00 712.50 528.00 159.50 7.00 0.00 3286.00
1938 0.00 0.00 9.00 91.00 304.50 622.00 931.50 763.00 684.00 201.00 6.50 0.00 3612.50
1939 0.00 0.00 42.50 185.50 425.50 506.50 905.50 869.50 526.00 131.50 0.00 2.50 3595.00
1940 0.00 0.50 52.00 158.00 443.50 713.50 882.00 825.00 556.00 199.00 0.00 0.00 3829.50
1941 0.00 2.00 59.00 168.10 a 375.00 519.50 927.00 752.00 312.50 59.50 3.00 2.00 3179.60
1942 0.00 0.00 12.00 165.50 255.00 398.00 852.50 845.50 465.00 157.00 6.00 0.00 3156.50
1943 0.00 0.00 19.00 142.00 216.00 392.00 793.00 700.50 528.62 a 218.50 5.50 0.00 3015.12
1944 0.00 0.00 14.00 154.50 391.00 504.64 b 793.00 694.00 568.00 225.00 8.50 3.00 3355.64
1945 0.00 2.50 4.50 75.50 355.00 461.00 833.00 762.00 318.00 165.50 3.50 0.00 2980.50
1946 0.00 0.00 11.50 149.50 360.00 471.50 781.00 782.50 390.50 49.00 0.00 3.50 2999.00
1947 0.00 2.50 61.00 156.72 a 487.22 a 485.50 773.50 689.50 458.00 171.50 0.00 z 0.00 3285.44
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 639.50 632.50 413.00 125.00 0.00 0.00 f 1810.00
1949 0.00 0.00 9.50 192.50 418.00 541.00 737.50 762.00 466.00 50.00 11.50 0.00 3188.00
1950 0.00 0.00 6.50 57.50 270.50 480.00 a 747.50 766.22 a 463.50 163.55 b 17.50 0.50 2973.27
1951 0.00 0.00 4.00 113.00 333.00 453.00 792.50 699.00 468.62 a 140.00 0.00 0.00 3003.12
1952 0.00 i 2.00 22.98 b 216.00 379.75 a 503.00 770.00 750.00 516.50 194.00 0.00 0.00 3354.23
1953 9.00 3.50 33.00 129.50 239.00 384.50 762.00 751.00 538.50 173.00 8.00 0.00 3031.00
1954 0.00 1.00 6.50 84.00 351.50 417.50 762.50 628.50 449.50 115.00 7.00 0.00 2823.00
1955 0.00 1.00 2.00 45.50 226.00 567.50 734.50 766.50 460.00 152.00 6.50 0.00 2961.50
Period of Record Statistics
MEAN 0.58 0.84 20.41 134.84 346.87 508.05 803.06 757.36 459.55 147.96 5.96 0.46 3228.99
S.D. 2.08 1.30 22.24 59.21 93.69 76.56 82.50 63.88 96.20 47.49 6.68 1.05 286.11
SKEW 3.40 1.64 1.41 0.41 0.53 0.67 -0.41 0.02 -0.08 -0.67 1.12 2.01 0.62
MAX 9.00 5.00 85.50 275.00 576.48 713.50 931.50 882.98 684.00 225.00 23.00 3.50 3829.50
MIN 0.00 0.00 0.50 45.50 205.24 384.50 599.50 628.50 263.00 49.00 0.00 0.00 2823.00
NO YRS 26 28 27 28 28 27 27 27 26 25 25 25 19