COEUR D ALENE, IDAHO

Monthly Total Growing Degree Days

(101956)

Base Temperature = 50 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 113.00 81.00 2.00 0.00 196.00
1896 0.00 0.00 0.50 4.00 70.50 331.00 617.50 490.00 242.59 a 63.00 6.00 0.00 1825.09
1897 0.00 0.00 0.00 49.00 329.50 308.00 411.78 a 601.00 203.50 58.50 1.00 0.00 1962.28
1898 0.00 0.00 a 0.00 18.50 250.00 364.00 479.50 742.00 0.00 z 0.00 z 0.00 z 0.00 z 1854.00
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 0.00 0.00 0.00 44.50 136.00 367.00 525.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1073.00
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 183.00 0.00 z 0.00 z 183.00
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 0.00 a 0.00 2.00 5.00 146.50 393.33 c 493.13 d 511.50 d 303.46 d 0.00 z 0.00 z 0.00 z 1854.92
1910 0.00 z 0.00 z 0.00 z 0.00 z 171.50 k 346.07 b 617.42 a 471.50 208.00 j 0.00 z 0.00 z 0.00 z 1434.99
1911 0.00 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 256.50 401.00 540.00 0.00 z 298.50 38.00 0.00 z 0.00 z 1534.00
1914 0.00 0.00 0.00 31.50 267.00 269.00 658.50 595.00 214.50 47.53 a 0.00 z 0.00 z 2083.03
1915 0.00 0.00 1.50 98.00 136.50 281.00 489.00 688.00 215.50 51.00 0.00 0.00 1960.50
1916 0.00 0.00 0.00 25.50 83.50 281.50 462.50 551.00 240.50 28.50 0.00 0.00 1673.00
1917 0.00 0.00 0.00 0.00 141.00 294.50 617.50 611.00 370.00 130.20 a 5.50 3.50 2173.20
1918 3.50 0.00 6.00 55.00 137.50 540.50 632.50 445.00 405.00 145.00 0.00 0.00 2370.00
1919 0.00 0.00 1.50 66.00 169.00 347.00 652.00 548.50 251.11 c 46.00 0.00 0.00 2081.11
1920 0.00 d 0.00 d 0.00 17.50 79.50 248.50 589.00 493.00 175.00 41.00 0.00 0.00 1643.50
1921 0.00 0.00 0.00 4.00 162.00 382.50 467.00 477.50 87.50 31.00 0.00 1.00 1612.50
1922 0.00 0.00 0.00 4.00 118.00 458.00 565.50 528.00 272.00 44.50 0.00 0.00 1990.00
1923 0.00 0.00 0.00 19.50 123.00 297.00 596.00 496.50 281.50 66.50 0.00 0.00 1880.00
1924 0.00 2.50 0.00 24.00 297.00 292.00 514.50 421.50 247.00 33.50 0.00 0.00 1832.00
1925 0.00 0.00 0.00 62.00 275.50 417.50 656.50 484.50 320.00 6.50 0.00 0.00 2222.50
1926 0.00 0.00 4.00 167.50 176.00 396.50 713.50 511.00 148.50 30.00 0.00 0.00 2147.00
1927 0.00 0.00 0.00 44.50 86.50 371.50 560.50 573.00 187.50 71.00 0.00 0.00 1894.50
1928 0.00 0.00 3.50 19.00 299.00 347.00 655.65 a 529.00 297.50 39.00 0.00 0.00 2189.65
1929 0.00 0.00 0.00 22.00 163.00 323.50 545.50 680.00 224.00 61.50 0.00 0.00 2019.50
1930 0.00 0.00 3.00 86.50 133.00 263.50 643.52 b 644.50 316.50 49.60 a 1.00 0.00 2141.12
1931 0.00 0.00 0.00 a 40.50 258.00 379.82 b 626.00 594.50 271.50 34.00 4.50 0.00 2208.82
1932 0.00 0.00 0.00 25.50 136.00 401.00 522.00 543.02 a 259.82 b 65.50 1.50 0.00 1954.34
1933 0.00 0.00 0.00 44.50 81.50 361.00 589.52 a 571.43 a 182.68 b 80.00 0.00 3.00 1913.63
1934 0.00 0.00 3.00 158.50 278.00 384.50 586.50 611.14 c 254.00 86.00 5.00 0.00 2366.64
1935 0.00 0.00 0.50 14.00 151.00 322.50 536.96 c 491.50 379.00 103.00 0.00 0.00 b 1998.46
1936 0.00 0.00 0.00 103.50 308.00 408.50 657.00 616.00 247.50 73.50 0.00 0.00 e 2414.00
1937 0.00 0.00 0.00 11.00 167.50 364.00 645.50 502.72 a 327.50 75.50 0.00 0.00 a 2093.72
1938 0.00 0.00 0.00 28.50 195.00 448.50 721.00 508.50 493.00 78.00 0.00 0.00 a 2472.50
1939 0.00 0.00 3.50 66.50 233.50 244.20 e 578.50 573.50 287.00 47.00 0.00 0.00 2033.70
1940 0.00 0.00 0.00 33.00 236.50 440.50 625.50 554.00 379.00 99.50 0.00 0.00 2368.00
1941 0.00 0.00 7.50 66.50 174.00 306.00 629.30 a 516.00 152.00 8.86 c 2.00 0.00 1862.16
1942 0.00 0.00 0.00 31.00 i 128.65 a 247.00 585.00 584.35 a 334.00 92.50 0.00 0.00 1971.50
1943 0.00 0.00 0.00 50.00 99.00 206.00 541.50 556.00 364.50 137.43 a 0.00 0.00 a 1954.43
1944 0.00 0.00 0.00 35.50 199.50 352.50 573.00 505.50 338.50 58.00 0.00 0.00 2062.50
1945 0.00 0.00 0.00 17.50 196.00 312.50 593.50 574.50 209.00 111.50 2.50 0.00 2017.00
1946 0.00 0.00 0.50 35.00 164.50 246.50 569.00 550.00 257.00 0.50 p 0.00 0.00 1822.50
1947 0.00 0.00 0.00 52.00 259.50 284.00 590.00 503.50 183.50 62.00 0.00 0.00 1934.50
1948 0.00 0.00 0.00 23.50 163.50 447.00 469.50 473.50 244.00 29.50 0.00 a 0.00 1850.50
1949 0.00 0.00 0.00 52.50 278.00 359.00 560.00 576.50 310.34 a 12.50 2.07 a 0.00 2150.91
1950 0.00 0.00 0.00 0.50 130.50 347.50 592.00 616.50 342.00 38.00 0.00 0.00 2067.00
1951 0.00 0.00 0.00 18.00 187.50 273.50 582.00 553.50 284.46 b 66.13 a 0.00 0.00 1965.10
1952 0.00 0.00 0.00 29.00 h 214.50 335.50 582.80 a 598.50 381.43 b 112.50 0.00 0.00 2225.23
1953 0.00 c 0.00 0.00 b 37.78 c 146.50 240.00 560.50 579.50 340.34 a 82.50 1.03 a 0.00 1988.16
1954 0.00 0.00 0.00 a 11.50 186.00 232.50 529.50 438.81 b 267.78 c 3.00 k 2.00 0.00 1668.09
1955 0.00 0.00 0.00 0.00 78.00 356.00 503.00 574.50 321.00 79.50 1.11 c 0.00 1913.11
1956 0.00 0.00 0.00 78.00 277.00 312.50 637.00 563.00 259.00 g 48.50 h 0.00 0.00 1867.50
1957 0.00 0.00 0.00 31.00 279.50 347.00 521.50 454.50 364.00 50.50 0.00 0.00 b 2048.00
1958 0.00 0.00 0.00 9.44 c 391.50 487.00 657.00 736.50 306.00 100.75 e 0.00 c 0.00 2688.19
1959 0.00 0.00 0.00 19.00 74.40 a 375.00 660.00 508.50 238.00 26.72 b 0.00 0.00 1901.62
1960 0.00 d 0.00 5.50 30.00 107.50 369.00 735.00 479.50 318.00 65.50 h 0.00 i 0.00 b 2044.50
1961 0.00 0.00 1.50 19.82 b 191.00 524.00 683.00 758.50 219.50 52.00 i 0.00 c 0.00 2397.32
1962 0.00 b 0.00 0.00 62.50 95.00 347.50 541.50 519.50 358.93 b 36.50 i 0.00 d 0.00 1924.93
1963 0.00 0.00 0.00 b 33.50 198.50 384.00 526.00 620.52 a 486.00 159.81 b 0.00 0.00 2408.33
1964 0.00 0.00 3.00 2.00 153.50 349.00 600.00 414.50 202.50 47.00 0.00 0.00 1771.50
1965 0.00 0.00 0.00 30.00 132.00 322.50 604.50 568.00 150.00 116.00 1.00 0.00 1924.00
1966 0.00 0.00 3.00 14.50 230.50 280.50 588.00 570.50 451.50 87.50 0.00 0.00 2226.00
1967 0.00 0.00 0.00 1.50 165.50 417.50 634.00 732.00 526.50 62.50 0.00 0.00 2539.50
1968 0.00 0.00 0.00 23.00 110.50 347.50 638.50 497.50 322.50 27.00 0.00 0.00 1966.50
1969 0.00 0.00 0.00 37.50 272.50 430.00 532.00 559.00 352.00 23.50 0.00 b 0.00 2206.50
1970 0.00 0.00 0.00 2.00 210.00 487.50 694.00 634.50 188.50 56.50 0.00 0.00 2273.00
1971 3.50 0.00 0.00 10.00 219.50 275.50 571.50 724.00 190.50 80.00 0.00 0.00 2074.50
1972 0.00 0.00 10.00 13.00 233.00 362.50 522.00 677.00 207.50 61.50 0.00 0.00 e 2086.50
1973 0.00 0.00 0.00 29.00 220.50 391.50 650.50 633.50 343.50 54.50 0.00 0.00 2323.00
1974 0.00 0.00 0.00 25.00 84.50 443.50 566.50 568.50 349.00 75.50 0.00 0.00 2112.50
1975 0.00 0.00 0.00 2.00 115.50 269.50 702.15 a 459.50 313.50 73.00 18.00 0.00 1953.15
1976 0.00 0.00 0.00 20.50 194.50 266.00 560.50 495.00 391.50 83.00 1.00 0.00 2012.00
1977 0.00 0.00 0.00 126.00 124.00 477.00 553.00 654.00 229.00 33.00 0.00 0.00 2196.00
1978 0.00 0.00 17.50 46.50 103.50 404.00 546.50 487.00 258.50 62.50 4.00 0.00 1930.00
1979 0.00 0.00 0.50 32.00 167.50 369.50 622.50 650.00 399.50 129.00 0.00 0.00 2370.50
1980 0.00 0.00 0.00 135.00 205.50 285.00 534.00 453.00 326.00 95.50 8.33 c 1.00 2043.33
1981 0.00 0.00 4.50 60.50 145.50 224.50 499.00 682.00 346.00 19.50 1.50 0.00 1983.00
1982 0.00 0.00 0.00 11.00 133.50 459.00 523.50 599.50 296.00 33.50 0.00 0.00 2056.00
1983 0.00 0.00 0.00 36.00 221.00 344.00 432.50 640.00 227.00 53.50 1.00 0.00 1955.00
1984 0.00 0.00 0.00 32.00 88.00 296.00 607.50 660.50 242.00 79.50 0.00 0.00 2005.50
1985 0.00 0.00 0.00 62.50 260.50 382.00 791.00 482.50 152.00 42.00 1.00 0.00 2173.50
1986 0.00 0.00 9.00 31.50 244.50 535.50 490.00 797.22 a 0.00 z 0.00 z 0.00 z 0.00 z 2107.72
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 3.10 a 0.00 3.10
1996 0.00 0.00 0.00 z 39.00 94.00 360.50 641.50 564.50 224.00 82.00 0.00 0.00 a 2005.50
1997 0.00 0.00 1.00 12.50 233.50 349.50 573.00 643.50 363.00 37.72 a 0.00 0.00 2213.72
1998 0.00 0.00 0.00 z 53.00 o 201.50 335.00 750.00 652.50 481.00 43.00 0.00 0.00 2463.00
1999 0.00 0.00 1.00 24.00 119.35 a 291.50 500.00 619.50 277.00 34.00 15.00 0.00 1881.35
2000 0.00 0.00 0.00 47.50 162.50 329.50 553.50 600.50 230.50 27.00 0.00 0.00 b 1951.00
2001 0.00 0.00 0.00 41.50 199.50 264.00 556.00 642.50 420.00 34.50 0.00 d 0.00 2158.00
2002 0.00 0.00 0.00 10.00 125.50 378.00 652.50 522.00 318.50 36.00 0.50 0.00 2043.00
2003 0.00 0.00 9.00 32.50 162.50 425.00 711.50 663.50 354.00 153.00 3.00 0.00 2514.00
2004 0.00 0.00 z 8.00 0.00 z 147.00 377.00 657.00 613.50 255.00 77.00 0.00 1.50 2136.00
2005 0.00 0.00 3.00 64.50 203.50 0.00 z 600.00 606.00 250.50 50.00 0.00 z 0.00 1777.50
2006 0.00 0.00 z 0.00 z 0.00 z 209.50 415.00 733.50 555.50 321.50 66.50 15.50 0.00 2317.00
2007 0.00 z 0.00 2.00 27.50 203.00 338.50 755.50 566.50 313.00 31.00 0.00 0.00 2237.00
2008 0.00 0.00 0.00 e 13.00 182.00 280.00 491.00 f 551.50 280.00 67.50 0.50 0.00 1374.50
2009 0.00 0.00 0.00 e 31.15 d 104.50 g 379.04 d 611.00 476.00 f 404.50 5.50 0.00 0.00 k 1431.19
2010 0.00 d 0.00 d 0.00 39.50 112.50 268.50 544.50 572.50 276.00 89.50 2.50 0.00 1905.50
2011 0.00 0.00 0.00 0.00 96.00 255.50 480.50 636.00 416.25 b 63.50 0.00 0.00 1947.75
2012 0.00 0.00 0.00 57.50 155.00 267.50 633.50 623.00 384.44 c 83.18 a 6.00 0.00 2210.13
2013 0.00 0.00 1.55 a 5.50 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 1.55
Period of Record Statistics
MEAN 0.07 0.03 1.26 36.66 178.35 348.97 589.91 572.06 291.94 64.69 1.32 0.11 2071.06
S.D. 0.51 0.26 2.82 32.83 67.14 72.19 74.95 79.76 86.30 35.44 3.22 0.52 207.55
SKEW 6.67 9.59 3.20 1.88 0.53 0.42 0.24 0.40 0.26 0.95 3.59 5.34 0.54
MAX 3.50 2.50 17.50 167.50 391.50 540.50 791.00 797.22 526.50 183.00 18.00 3.50 2688.19
MIN 0.00 0.00 0.00 0.00 70.50 206.00 411.78 414.50 87.50 5.50 0.00 0.00 1612.50
NO YRS 95 95 93 90 95 96 96 94 93 88 90 92 74