SANDPOINT EXP STN, IDAHO

Monthly Total Growing Degree Days

(108137)

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
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 270.00 23.50 0.00 293.50
1911 0.00 0.00 62.00 143.00 301.50 564.00 740.00 630.00 385.00 141.00 0.50 0.00 2967.00
1912 0.00 0.00 21.00 182.00 396.50 622.00 666.50 575.50 307.50 126.50 36.50 h 0.00 2897.50
1913 0.00 0.00 10.00 176.00 378.00 627.93 a 739.00 0.00 z 448.45 a 150.50 25.00 0.00 2554.88
1914 5.50 1.00 59.00 240.00 478.43 a 536.00 844.00 762.00 398.00 227.50 53.00 0.00 3604.43
1915 0.00 0.00 107.00 333.00 428.50 534.00 741.00 925.00 466.50 258.00 19.00 0.00 3812.00
1916 0.50 1.50 27.00 152.50 263.00 512.50 692.00 659.50 407.50 112.00 15.00 0.00 2843.00
1917 0.00 0.00 0.00 61.00 340.45 c 474.00 787.50 728.00 540.50 216.50 47.50 19.50 3214.95
1918 5.00 2.50 69.00 202.00 325.50 660.50 815.30 a 625.00 535.00 240.50 12.00 19.00 3511.30
1919 9.50 3.50 31.00 225.00 360.63 a 544.00 780.00 765.70 a 487.76 a 129.00 10.50 6.00 3352.59
1920 3.00 1.50 36.00 112.00 281.50 441.50 838.50 726.50 414.00 160.50 18.50 4.65 a 3038.15
1921 0.00 a 0.50 32.00 109.00 452.00 673.00 744.50 764.00 344.00 206.00 28.50 14.50 3368.00
1922 0.00 0.00 1.50 123.00 348.00 715.00 792.00 822.50 510.00 264.00 3.00 0.00 3579.00
1923 1.50 0.00 20.00 176.00 354.50 586.50 868.50 739.50 515.50 274.50 25.50 2.00 3564.00
1924 0.00 9.00 10.00 140.00 518.00 550.00 772.00 676.00 446.00 195.50 11.50 28.00 3356.00
1925 0.00 4.00 43.00 264.50 502.50 610.50 861.00 732.00 472.50 90.50 2.00 10.50 3593.00
1926 0.00 4.50 76.50 321.00 405.00 613.00 829.00 685.50 333.50 237.00 20.00 8.00 3533.00
1927 0.00 0.00 15.00 153.00 312.00 610.00 784.00 778.50 424.50 221.50 27.00 6.00 3331.50
1928 0.00 0.00 45.50 120.50 515.50 573.00 812.50 682.50 473.50 211.00 11.00 0.00 3445.00
1929 0.00 0.00 14.50 126.50 411.00 544.50 725.00 799.00 377.50 183.50 5.50 6.50 3193.50
1930 0.00 23.00 52.50 297.00 371.00 407.50 g 846.00 805.00 523.00 152.50 25.00 0.00 3095.00
1931 0.00 0.00 39.50 196.50 471.50 584.50 798.00 756.92 a 437.00 168.50 42.50 0.00 3494.92
1932 0.00 7.50 20.00 175.00 389.00 608.50 700.00 760.50 431.50 179.00 38.50 8.50 3318.00
1933 0.00 0.00 2.50 163.00 314.50 586.00 761.00 759.00 364.00 238.04 c 44.48 a 20.00 3252.52
1934 1.00 10.00 79.00 397.50 522.50 599.50 766.00 447.00 l 0.00 z 0.00 z 0.00 z 0.00 z 2375.50
1935 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 38.00 z 195.00 1.00 0.00 196.00
1936 0.00 0.00 6.00 306.00 572.00 632.50 634.00 g 760.53 a 449.50 205.50 3.50 11.00 2946.53
1937 0.00 0.00 7.50 112.50 462.50 610.00 832.00 645.50 523.50 285.50 26.50 0.50 3506.00
1938 0.00 0.00 15.50 203.50 398.50 664.50 862.00 614.00 644.00 255.00 8.50 12.50 3678.00
1939 0.50 0.00 68.50 261.00 463.50 491.00 816.00 800.50 506.50 228.00 29.00 22.00 3686.50
1940 0.00 2.50 88.00 247.50 518.50 690.50 835.00 787.00 666.00 291.00 4.50 0.00 4130.50
1941 0.00 0.50 129.00 302.50 430.50 634.50 905.50 758.50 385.50 199.50 49.00 13.00 3808.00
1942 0.00 0.00 32.50 209.50 362.50 499.00 808.00 802.50 521.50 258.00 4.50 0.50 3498.50
1943 0.00 a 0.00 5.50 213.50 284.50 462.00 766.50 686.00 545.00 237.50 12.50 2.50 3215.50
1944 0.00 0.50 24.00 216.00 451.50 607.00 768.50 706.50 526.50 321.50 26.00 2.00 3650.00
1945 3.00 4.00 23.00 106.50 447.50 567.00 820.00 758.50 405.00 247.00 24.50 0.50 3406.50
1946 0.00 1.00 39.50 186.00 485.00 539.00 775.50 758.00 457.50 115.50 0.00 2.00 3359.00
1947 1.00 18.00 62.00 194.50 529.00 544.00 796.00 695.50 454.00 257.00 9.50 0.00 3560.50
1948 0.00 5.00 12.00 127.00 421.50 696.00 703.50 710.00 476.00 178.00 1.00 0.00 3330.00
1949 0.00 0.00 5.00 224.00 509.00 560.50 790.00 742.50 515.00 127.00 55.00 5.00 3533.00
1950 0.00 2.00 2.00 106.50 322.50 562.00 785.00 774.00 511.50 205.00 25.50 12.50 3308.50
1951 0.50 6.50 13.50 135.50 f 430.50 530.00 799.80 a 727.50 441.00 169.50 11.38 a 3.00 3133.18
1952 0.00 0.00 15.00 244.50 446.50 559.00 759.50 741.00 526.50 235.00 14.50 0.00 3541.50
1953 16.50 3.00 28.00 121.50 352.50 491.00 747.00 742.00 517.00 229.50 45.50 0.00 3293.50
1954 1.00 1.50 11.50 106.00 413.00 474.50 693.00 633.50 443.00 125.50 61.50 f 0.00 2902.50
1955 0.00 0.00 0.00 43.00 269.00 624.50 710.50 665.50 443.50 182.50 14.00 1.00 2953.50
1956 0.00 0.00 2.00 211.50 463.00 525.00 806.50 717.50 471.50 179.50 6.00 6.00 3388.50
1957 0.00 4.50 6.00 168.50 553.50 590.00 716.50 665.00 521.50 152.00 2.00 0.00 3379.50
1958 0.00 18.50 45.50 142.00 595.50 696.50 847.50 882.00 470.00 185.00 37.00 4.50 3924.00
1959 0.00 0.00 11.50 183.50 288.50 584.00 777.00 635.00 410.00 160.50 17.00 1.00 3068.00
1960 0.00 0.00 21.00 151.50 321.00 580.00 865.50 670.50 471.00 185.50 9.00 0.00 3275.00
1961 4.00 4.00 48.50 117.00 379.50 713.50 857.00 875.00 382.50 140.00 1.50 0.50 3523.00
1962 2.50 3.11 a 3.50 210.50 359.00 571.00 720.00 706.50 515.00 199.00 53.50 0.50 3344.11
1963 3.50 15.50 48.00 175.00 425.50 637.00 739.50 799.00 611.00 270.50 22.50 0.00 3747.00
1964 0.00 0.00 5.00 100.50 365.50 601.50 779.00 594.00 366.50 189.00 11.00 0.00 3012.00
1965 0.00 1.50 10.50 205.50 355.00 567.00 788.50 775.50 340.00 254.50 42.50 0.00 3340.50
1966 0.00 0.00 35.00 166.00 451.50 492.00 750.00 728.00 626.50 189.50 4.00 1.00 3443.50
1967 0.50 10.50 11.00 72.50 378.50 643.50 791.50 878.00 663.50 229.00 35.50 0.00 3714.00
1968 3.00 17.00 57.50 130.00 364.50 560.50 790.50 682.50 464.50 100.50 5.00 0.00 3175.50
1969 0.00 0.00 23.00 187.00 488.50 660.00 696.00 689.50 529.50 121.00 30.50 0.00 3425.00
1970 0.00 0.00 20.00 65.50 403.50 671.50 833.00 739.50 358.50 132.00 31.00 0.00 3254.50
1971 12.50 2.50 18.50 130.50 439.50 512.00 737.00 831.00 348.50 164.50 6.00 0.00 3202.50
1972 1.00 16.00 85.00 87.00 437.00 566.50 708.00 794.50 361.50 144.50 12.50 7.50 3221.00
1973 1.00 4.50 28.50 145.50 418.50 590.00 784.00 763.00 486.50 174.00 9.00 0.00 3404.50
1974 12.50 0.00 28.50 185.00 303.00 709.50 756.50 743.50 504.50 167.00 13.00 3.00 3426.00
1975 0.00 0.50 7.50 96.00 374.50 526.00 861.00 645.50 449.00 165.00 44.00 8.00 3177.00
1976 0.00 0.00 7.50 163.00 442.50 467.50 725.50 676.50 505.50 158.50 25.00 0.00 3171.50
1977 0.00 8.00 25.00 266.50 333.00 665.50 719.00 800.50 391.00 143.50 11.50 3.50 3367.00
1978 0.00 0.00 91.00 197.50 337.00 628.50 779.50 690.50 460.00 178.50 16.50 0.00 3379.00
1979 0.00 0.50 40.50 139.00 428.00 0.00 z 0.00 z 852.50 542.50 226.50 3.50 7.00 2240.00
1980 0.00 4.50 4.00 291.00 493.50 541.00 789.50 639.00 494.50 185.00 55.50 25.50 3523.00
1981 0.00 9.50 54.50 188.00 403.00 442.00 709.00 817.00 472.00 95.00 8.00 0.50 3198.50
1982 0.00 2.50 23.00 88.00 385.00 692.50 711.00 767.00 502.00 125.50 5.50 0.00 3302.00
1983 4.50 5.50 39.00 150.50 468.50 573.00 673.00 0.00 z 390.00 180.00 39.50 0.00 2523.50
1984 6.00 0.00 44.50 171.50 295.00 526.00 799.50 765.50 395.00 132.78 a 4.50 0.00 3140.28
1985 0.00 0.00 a 8.50 196.07 b 442.50 612.50 928.50 661.16 b 355.71 b 122.97 a 7.76 a 0.00 3335.67
1986 0.00 18.00 82.50 158.00 467.50 714.00 658.00 872.65 a 417.50 212.00 18.50 0.00 3618.65
1987 0.00 0.00 51.00 322.50 497.00 692.50 793.00 723.00 537.50 178.50 62.00 7.50 3864.50
1988 0.00 5.00 19.00 292.00 425.50 590.00 727.00 744.50 460.50 317.00 46.50 3.50 3630.50
1989 2.50 0.00 19.00 232.50 360.00 672.00 798.50 701.50 459.00 158.00 51.00 3.00 3457.00
1990 1.00 3.50 44.00 244.50 380.50 543.00 838.50 789.50 615.50 154.50 50.50 0.00 3665.00
1991 0.50 4.00 15.00 178.50 377.00 501.50 795.00 809.00 544.00 209.50 15.00 3.00 3452.00
1992 0.50 5.00 84.00 235.00 488.00 716.50 735.50 738.50 388.50 216.50 13.50 0.00 3621.50
1993 0.00 0.00 21.00 157.50 571.00 559.00 589.50 698.50 455.00 228.00 10.00 0.00 3289.50
1994 1.00 0.00 51.50 252.50 455.00 527.00 871.50 843.00 562.50 158.50 1.00 1.50 3725.00
1995 0.00 40.50 26.00 145.00 481.00 575.00 790.00 657.50 556.00 141.50 67.50 11.50 3491.50
1996 2.50 2.50 19.00 156.50 277.50 575.50 827.50 741.50 419.00 186.50 7.50 0.00 3215.50
1997 3.50 0.00 20.50 106.50 443.50 578.00 787.00 841.50 558.50 188.00 23.50 0.00 3550.50
1998 0.50 1.00 56.00 196.00 480.50 a 613.50 961.50 823.00 651.50 178.50 40.50 0.00 4002.50
1999 2.00 0.00 55.00 124.50 302.50 532.50 689.50 850.00 422.00 157.50 59.50 0.00 3195.00
2000 0.00 0.00 17.00 196.50 377.50 570.00 776.55 a 776.00 435.50 182.00 0.50 0.00 a 3331.55
2001 0.00 a 0.00 39.50 128.00 415.50 513.00 770.00 827.00 615.00 144.00 50.17 a 0.00 3502.17
2002 1.50 0.50 21.00 174.50 354.00 633.50 859.00 738.00 501.50 115.00 35.00 9.00 3442.50
2003 5.00 8.00 52.50 204.00 395.00 672.50 906.00 873.50 553.50 307.00 13.50 0.00 3990.50
2004 0.00 1.50 89.50 226.50 440.50 630.50 876.50 648.00 g 317.00 i 168.00 j 14.00 h 0.00 h 2265.00
2005 3.50 j 0.00 h 55.50 220.50 286.50 k 416.50 h 450.50 n 541.50 i 324.00 h 163.00 j 7.50 h 0.00 l 276.00
2006 1.00 i 0.50 25.00 204.00 448.00 691.00 932.00 784.50 529.00 173.50 f 41.00 0.00 3655.00
2007 0.00 1.50 78.00 184.50 418.50 610.00 998.00 785.00 511.00 163.50 26.00 0.00 f 3776.00
2008 0.00 0.00 0.00 59.00 438.50 523.50 834.00 748.50 0.00 z 163.00 30.50 2.00 j 2797.00
2009 0.50 0.00 4.50 0.00 z 407.50 607.00 859.00 631.00 h 0.00 z 59.00 i 14.00 0.00 z 1892.50
2010 0.00 y 0.00 i 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 91.00 z 173.50 r 102.00 t 26.50 w 0.00 z 0.00
2011 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 564.50 f 649.50 g 578.89 c 166.00 0.00 3.00 747.89
2012 3.50 0.00 b 28.00 222.00 338.00 498.50 881.43 a 808.58 a 535.56 c 193.75 a 57.22 c 0.00 a 3566.54
2013 0.00 b 0.00 a 22.00 20.50 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 22.00
Period of Record Statistics
MEAN 1.27 3.36 33.11 180.65 410.65 586.40 788.23 745.45 475.45 189.39 22.46 3.66 3432.20
S.D. 2.82 6.21 27.12 67.07 73.97 68.12 68.95 71.58 79.26 51.36 17.87 6.14 242.31
SKEW 3.33 3.18 1.08 0.52 0.10 0.08 0.23 0.00 0.25 0.44 0.66 2.09 0.33
MAX 16.50 40.50 129.00 397.50 595.50 716.50 998.00 925.00 666.00 321.50 67.50 28.00 4130.50
MIN 0.00 0.00 0.00 43.00 263.00 441.50 589.50 575.50 307.50 90.50 0.00 0.00 2843.00
NO YRS 98 99 100 97 98 96 96 93 95 97 97 96 84