COEUR D ALENE, IDAHO

Monthly Total Growing Degree Days

(101956)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1895 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 376.50 305.00 61.50 10.00 753.00
1896 8.50 12.00 71.00 111.50 257.50 624.50 927.50 800.00 534.31 a 298.50 43.50 17.00 3705.81
1897 0.00 0.00 7.50 218.00 626.00 598.50 721.78 a 911.00 498.00 254.50 54.50 7.00 3896.78
1898 0.00 8.30 a 23.50 226.50 544.50 662.50 789.50 1050.50 0.00 z 0.00 z 0.00 z 0.00 z 3305.30
1899 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
1900 4.00 1.50 62.50 279.50 431.50 665.50 835.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2280.00
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 490.00 0.00 z 0.00 z 490.00
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 0.00
1909 4.13 a 8.00 90.00 144.50 428.50 693.33 c 803.13 d 821.50 d 601.15 d 0.00 z 0.00 z 0.00 z 3594.25
1910 0.00 z 0.00 z 0.00 z 0.00 z 370.50 k 646.07 b 927.42 a 781.50 408.00 j 0.00 z 0.00 z 0.00 z 2354.99
1911 1.50 h 0.00 d 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 546.50 701.00 850.00 0.00 z 598.50 235.00 0.00 z 0.00 z 2931.00
1914 16.00 7.50 84.50 274.50 569.00 561.00 968.50 905.00 512.00 314.65 a 0.00 z 0.00 z 4212.65
1915 0.00 1.00 117.00 363.00 441.00 581.00 799.00 998.00 508.00 323.00 26.00 10.00 4167.00
1916 3.50 10.00 68.50 195.00 319.50 570.00 772.50 861.00 540.50 213.00 36.50 0.50 3590.50
1917 0.00 0.00 0.00 86.50 425.50 588.00 927.50 921.00 670.00 330.67 a 92.00 81.00 4122.17
1918 22.00 15.00 114.50 266.00 411.50 835.50 942.50 755.00 705.00 398.00 47.50 34.00 4546.50
1919 27.00 0.00 56.00 278.00 431.50 647.00 962.00 858.50 548.33 c 222.50 18.50 11.50 4060.83
1920 21.24 d 1.74 d 40.00 144.00 345.50 548.00 899.00 803.00 463.00 188.50 37.50 9.00 3500.48
1921 3.00 13.00 46.50 124.00 457.50 682.50 777.00 787.50 335.00 256.50 41.00 28.00 3551.50
1922 0.00 0.00 3.00 110.50 387.00 758.00 875.50 838.00 567.00 283.00 3.00 2.50 3827.50
1923 7.00 0.00 46.50 187.50 402.00 589.00 906.00 806.50 579.00 266.50 33.50 3.50 3827.00
1924 2.00 36.50 14.50 190.00 598.00 584.00 824.50 729.00 534.50 232.50 12.50 37.00 3795.00
1925 4.00 17.00 61.50 296.00 582.50 716.50 966.50 794.50 595.00 186.50 16.00 12.00 4248.00
1926 0.00 16.00 91.00 386.50 473.50 693.50 1023.50 821.00 395.50 280.50 46.50 12.50 4240.00
1927 0.00 3.00 21.50 168.00 328.00 671.50 870.50 883.00 467.00 293.50 26.00 5.50 3737.50
1928 1.00 0.00 67.00 132.00 582.50 647.00 965.65 a 839.00 590.00 242.50 9.00 1.50 4077.15
1929 0.00 0.00 30.50 126.00 433.50 614.00 855.50 990.00 497.50 292.00 6.50 15.00 3860.50
1930 0.00 29.00 61.00 340.50 398.00 560.00 953.52 b 954.50 607.00 182.90 a 39.50 0.00 4125.92
1931 5.50 2.50 53.22 a 190.00 550.00 679.82 b 936.00 904.50 568.00 238.00 45.00 0.00 4172.54
1932 0.00 14.50 21.00 195.00 412.50 700.50 832.00 853.02 a 545.36 b 255.00 66.00 11.00 3905.87
1933 2.00 0.00 1.50 178.00 297.00 660.50 899.52 a 881.43 a 447.86 b 312.00 54.50 40.00 3774.31
1934 11.00 9.00 144.50 425.50 581.00 684.50 896.50 921.14 c 494.00 294.50 103.00 1.50 4566.14
1935 0.50 0.00 16.00 122.50 416.50 622.00 846.96 c 801.50 676.00 304.00 3.50 0.00 b 3809.46
1936 0.00 0.00 28.50 318.00 612.00 708.50 967.00 926.00 533.00 329.00 3.50 12.52 e 4438.02
1937 0.00 0.00 24.50 111.50 458.50 664.00 955.50 812.72 a 617.50 353.00 50.00 5.68 a 4052.90
1938 1.00 0.00 30.00 218.50 470.50 740.50 1031.00 818.50 793.00 332.00 17.50 21.18 a 4473.68
1939 10.00 0.00 87.00 271.00 536.00 541.80 e 888.50 883.50 585.00 259.00 18.00 28.00 4107.80
1940 0.00 2.50 112.50 270.50 543.50 740.50 935.50 864.00 679.00 373.50 5.00 3.50 4530.00
1941 0.00 15.50 148.50 303.00 473.50 606.00 939.30 a 826.00 442.50 223.64 c 59.00 20.00 4056.94
1942 0.00 0.00 36.00 181.50 i 397.83 a 547.00 895.00 894.35 a 630.50 329.50 13.00 0.00 3743.18
1943 0.00 0.00 27.00 254.50 344.50 503.50 851.50 866.00 664.50 357.53 a 47.00 7.75 a 3923.78
1944 0.00 2.00 29.00 224.00 486.50 652.50 883.00 815.50 636.00 344.00 36.50 8.50 4117.50
1945 11.50 8.00 33.50 141.00 497.50 610.50 903.50 884.50 476.00 337.00 37.00 10.00 3950.00
1946 0.00 2.50 59.00 226.00 468.50 546.50 879.00 860.00 549.00 54.00 p 6.00 14.00 3610.50
1947 3.00 17.50 108.50 239.00 569.50 584.00 900.00 813.50 454.50 309.00 20.50 2.00 4021.00
1948 0.00 10.00 17.50 144.00 438.00 747.00 779.50 783.50 533.50 206.00 5.69 a 0.00 3664.69
1949 0.00 0.50 6.00 283.00 556.50 659.00 870.00 886.50 609.31 a 147.50 67.24 a 7.50 4093.05
1950 0.00 3.50 10.50 121.00 395.00 641.00 902.00 926.50 621.50 212.00 40.00 31.50 3904.50
1951 2.00 6.00 19.50 228.00 471.00 572.50 892.00 863.50 580.18 b 227.33 a 24.00 8.00 3894.01
1952 0.00 0.50 25.00 160.00 h 512.00 635.00 892.80 a 908.50 681.43 b 389.50 23.50 0.00 4068.23
1953 50.38 c 9.50 56.66 b 182.78 c 420.50 540.00 870.50 889.50 640.34 a 351.50 61.55 a 5.50 4078.70
1954 1.50 14.00 14.98 a 135.50 467.50 530.00 839.50 748.81 b 550.00 c 76.50 k 113.00 0.00 3414.79
1955 0.00 1.00 3.00 77.00 346.00 656.00 813.00 884.50 619.00 322.50 38.89 c 2.50 3763.39
1956 3.00 2.00 41.00 306.50 552.50 612.50 947.00 873.00 489.00 g 193.50 h 15.50 16.50 3369.50
1957 0.00 7.00 12.00 193.50 581.00 647.00 831.50 764.50 658.00 225.50 8.00 4.28 b 3932.28
1958 1.00 39.50 64.50 194.44 c 701.50 787.00 967.00 1046.50 597.50 326.69 e 52.78 c 14.50 4792.91
1959 0.50 0.00 34.00 231.00 329.12 a 675.00 970.00 818.50 535.00 233.03 b 31.00 7.00 3864.15
1960 0.00 d 3.00 96.00 174.50 384.50 669.00 1045.00 789.50 618.00 264.00 h 26.00 i 0.00 b 3779.50
1961 14.50 9.00 65.50 163.93 b 473.50 824.00 993.00 1068.50 506.00 185.50 i 12.78 c 2.00 4132.71
1962 1.07 b 7.50 5.00 264.00 380.00 646.00 851.50 829.50 656.79 b 209.50 i 49.62 d 14.00 3704.97
1963 5.50 13.50 60.40 b 169.00 471.50 684.00 836.00 930.52 a 786.00 402.47 b 49.00 0.00 4407.88
1964 0.50 1.50 27.50 128.50 421.00 649.00 910.00 724.50 501.00 297.50 28.50 3.50 3693.00
1965 0.00 10.50 21.00 216.00 401.50 622.50 914.50 878.00 429.00 404.00 71.00 7.00 3975.00
1966 1.50 0.00 57.50 181.00 523.00 573.50 898.00 880.50 751.50 314.50 27.00 11.50 4219.50
1967 8.00 12.50 25.50 111.50 444.50 717.50 944.00 1042.00 826.50 328.00 50.00 0.00 4510.00
1968 3.00 42.50 87.50 120.00 401.00 646.50 948.50 807.50 617.00 231.00 17.50 1.50 3923.50
1969 0.00 0.00 35.50 244.00 563.00 730.00 842.00 869.00 652.00 197.50 65.89 b 0.50 4199.39
1970 0.00 1.50 41.50 85.50 502.50 787.50 1004.00 944.50 460.50 241.50 64.50 2.00 4135.50
1971 29.50 21.50 21.50 188.50 506.50 575.50 881.50 1034.00 481.00 255.00 22.50 1.00 4018.00
1972 4.00 25.00 125.50 113.50 524.00 662.50 832.00 987.00 487.50 303.00 53.00 32.19 e 4149.19
1973 3.00 12.00 55.50 212.50 515.00 691.50 960.50 943.50 643.50 303.50 19.00 2.50 4362.00
1974 17.00 0.50 52.00 204.00 331.00 743.50 876.50 878.50 649.00 347.50 45.50 7.50 4152.50
1975 0.00 1.50 9.00 105.50 394.00 569.50 1012.15 a 769.50 613.50 279.00 86.50 22.50 3862.65
1976 0.50 1.50 21.50 181.50 499.50 562.00 870.50 805.00 691.50 304.00 67.50 1.00 4006.00
1977 0.00 16.00 25.00 341.50 408.50 777.00 863.00 964.00 515.50 271.50 43.00 17.50 4242.50
1978 0.00 6.00 143.50 224.00 390.00 704.00 856.50 797.00 554.00 299.50 35.00 0.00 4009.50
1979 0.00 1.50 75.00 193.00 465.50 669.50 932.50 960.00 699.50 368.00 16.00 24.50 4405.00
1980 0.00 23.00 23.00 342.50 515.00 583.00 844.00 763.00 625.50 328.00 80.00 c 39.50 4166.50
1981 6.00 42.00 126.50 226.00 423.50 520.50 809.00 992.00 641.00 223.00 64.50 8.00 4082.00
1982 0.00 19.50 55.00 118.50 417.50 756.50 833.50 909.50 593.50 244.50 27.00 4.00 3979.00
1983 16.00 55.50 131.50 209.00 514.50 644.00 742.50 950.00 506.50 319.50 69.50 0.00 4158.50
1984 10.00 2.50 69.00 178.00 352.00 595.00 917.50 970.50 509.00 223.00 31.00 0.00 3857.50
1985 0.00 2.00 26.00 275.00 549.50 682.00 1101.00 792.50 432.00 250.00 36.50 0.00 4146.50
1986 0.00 31.00 162.00 208.50 511.00 835.50 800.00 1107.22 a 0.00 z 0.00 z 0.00 z 0.00 z 3655.22
1987 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
1988 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
1989 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
1990 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
1991 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
1992 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
1993 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
1994 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
1995 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 109.14 a 14.50 123.64
1996 6.50 17.50 0.00 z 207.50 350.00 660.00 951.50 874.50 509.50 237.00 22.00 0.52 a 3836.52
1997 7.00 0.50 54.00 152.50 524.00 649.50 883.00 953.50 663.00 245.93 a 40.50 0.00 4173.43
1998 4.50 16.50 0.00 z 175.00 o 480.00 635.00 1060.00 962.50 781.00 258.00 66.00 8.50 4272.00
1999 2.00 1.00 71.50 157.00 357.02 a 588.00 810.00 929.50 568.50 269.50 97.50 5.50 3857.02
2000 0.00 0.50 34.50 264.50 434.00 626.50 863.50 910.50 506.00 249.00 3.50 0.00 b 3892.50
2001 0.00 0.00 56.00 151.00 480.50 558.00 866.00 952.50 720.00 243.00 98.08 d 1.50 4126.58
2002 8.50 6.00 13.50 177.00 366.00 671.00 962.50 832.00 618.50 219.50 69.00 21.00 3964.50
2003 20.00 8.50 91.00 203.00 419.00 725.00 1021.50 973.50 652.50 416.00 23.00 0.00 4553.00
2004 5.00 0.00 z 150.50 0.00 z 446.50 677.00 967.00 923.50 554.00 293.00 27.00 16.00 4059.50
2005 7.00 10.00 96.00 241.00 510.50 0.00 z 910.00 916.00 550.50 302.50 0.00 z 3.50 3547.00
2006 5.50 0.00 z 0.00 z 0.00 z 486.00 715.00 1043.50 865.50 607.50 294.00 67.50 2.00 4086.50
2007 0.00 z 8.50 98.00 188.50 476.50 637.50 1065.50 876.50 607.50 243.50 58.00 11.50 4271.50
2008 0.00 0.50 7.75 e 83.50 452.00 569.00 741.00 f 861.50 578.50 239.50 66.50 4.50 2863.25
2009 5.00 2.50 14.31 e 173.65 d 311.50 g 679.04 d 921.00 726.00 f 701.00 164.50 27.50 0.00 k 2688.50
2010 3.44 d 8.75 d 71.50 185.00 354.00 566.00 854.50 882.50 576.00 311.50 76.00 8.00 3897.19
2011 23.50 4.00 24.00 58.50 360.00 551.50 790.50 946.00 716.25 b 301.50 21.50 6.00 3803.25
2012 8.00 2.00 42.00 235.00 421.00 552.50 943.50 933.00 684.44 c 300.18 a 86.00 18.00 4225.63
2013 0.00 0.00 67.17 a 25.50 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 67.17
Period of Record Statistics
MEAN 4.76 8.38 53.54 201.00 457.96 647.02 899.91 882.01 582.60 284.15 42.31 9.82 4053.00
S.D. 8.09 11.05 39.89 73.94 82.43 73.29 74.95 79.78 94.69 61.09 26.82 12.48 258.09
SKEW 2.87 1.98 0.87 0.56 0.18 0.40 0.24 0.39 0.07 0.45 0.60 2.65 0.42
MAX 50.38 55.50 162.00 425.50 701.50 835.50 1101.00 1107.22 826.50 490.00 113.00 81.00 4792.91
MIN 0.00 0.00 0.00 58.50 257.50 503.50 721.78 724.50 335.00 147.50 3.00 0.00 3500.48
NO YRS 95 95 93 90 95 96 96 94 93 88 90 92 74