POTLATCH 3 NNE, IDAHO

Monthly Total Growing Degree Days

(107301)

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
1915 0.00 z 0.00 z 129.50 253.00 322.00 442.00 694.50 880.00 401.00 248.00 22.00 8.50 3400.50
1916 0.50 13.50 64.00 132.00 209.50 464.00 636.00 705.50 444.50 105.00 26.50 0.00 2801.00
1917 0.00 0.00 0.00 58.00 297.50 450.50 767.50 730.50 562.50 260.50 123.00 77.00 3327.00
1918 29.00 7.50 60.00 149.50 258.00 676.50 807.00 654.00 585.00 302.50 21.50 7.00 3557.50
1919 18.50 0.00 28.50 171.50 340.00 449.50 727.50 717.50 439.00 141.00 29.00 12.50 3074.50
1920 23.50 0.00 20.50 77.50 241.50 455.50 794.50 752.00 463.50 184.50 31.00 1.50 3045.50
1921 1.00 18.50 44.00 93.00 358.00 592.00 672.00 724.50 333.50 292.50 54.00 18.50 3201.50
1922 0.00 0.00 7.00 80.50 292.50 657.00 763.00 805.00 550.00 307.50 8.00 4.50 3475.00
1923 14.00 3.00 57.50 140.00 344.50 507.50 808.00 747.00 507.00 229.00 44.00 1.50 3403.00
1924 3.50 24.50 9.50 127.50 530.50 552.50 776.50 692.00 516.00 217.50 21.00 29.50 3500.50
1925 8.00 15.50 47.00 233.50 466.00 634.00 876.50 738.00 473.50 147.00 26.00 9.50 3674.50
1926 0.00 25.00 79.50 346.00 409.00 587.50 831.50 728.00 343.50 234.50 66.00 11.00 3661.50
1927 0.00 a 0.00 14.50 139.00 268.00 591.50 781.00 762.00 418.50 280.50 58.00 4.00 3317.00
1928 3.50 2.50 89.50 114.00 517.50 537.50 854.50 665.50 482.50 240.00 31.00 0.00 3538.00
1929 0.00 0.00 41.00 91.50 379.00 523.00 757.50 831.50 402.00 330.50 22.00 19.50 3397.50
1930 1.00 52.50 64.00 316.50 346.50 519.00 832.00 847.00 540.50 164.50 79.00 0.00 3762.50
1931 13.00 3.00 58.00 182.00 476.00 577.00 816.50 809.00 450.00 237.00 39.50 0.00 3661.00
1932 0.00 11.50 18.00 172.50 357.00 721.00 682.00 814.00 0.00 z 0.00 z 0.00 z 0.00 z 2776.00
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1936 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 271.50 27.00 18.00 316.50
1937 0.00 0.00 75.00 117.00 340.50 494.00 783.00 639.50 565.00 348.50 80.00 12.00 3454.50
1938 3.00 3.50 41.00 195.50 409.50 662.00 872.50 692.50 749.00 345.00 14.00 19.50 4007.00
1939 12.50 0.00 96.50 271.50 461.00 507.50 786.50 745.50 536.00 251.00 107.00 68.50 3843.50
1940 12.50 13.00 145.00 273.50 524.50 669.50 824.00 745.00 639.50 407.00 21.00 52.00 4326.50
1941 1.00 g 26.50 142.00 247.50 387.00 558.50 888.50 773.00 406.00 258.00 103.50 31.50 3822.00
1942 8.50 0.50 76.50 291.50 365.50 490.00 817.00 821.50 560.00 305.50 22.50 5.17 a 3764.17
1943 0.00 10.50 52.00 266.50 281.50 459.50 786.00 698.00 585.00 315.00 48.00 6.00 3508.00
1944 5.50 0.50 37.50 240.00 480.00 514.50 f 413.00 q 702.50 595.50 422.50 36.50 7.50 2528.00
1945 20.50 11.00 37.50 139.00 460.50 538.00 851.50 814.00 466.00 367.00 43.50 24.00 3772.50
1946 1.50 14.50 95.07 a 260.00 c 452.50 543.10 a 811.50 817.50 532.00 155.00 30.00 d 48.50 3761.17
1947 8.50 41.00 143.50 252.00 575.50 575.00 791.10 e 753.00 575.50 342.50 39.83 a 14.00 4111.42
1948 3.50 19.33 b 45.00 181.00 419.50 724.00 726.50 724.50 527.00 255.00 25.00 0.00 3650.33
1949 0.00 4.15 a 0.00 z 168.00 k 519.00 583.97 a 750.50 757.00 565.00 142.00 146.00 0.00 d 3467.61
1950 0.55 c 11.50 24.00 129.23 d 329.00 578.50 773.00 793.50 522.00 280.50 61.50 33.50 3536.78
1951 2.50 13.00 24.69 d 196.50 429.00 533.40 e 831.50 708.00 556.50 232.00 30.50 2.50 3560.09
1952 0.00 2.50 40.00 288.10 a 462.50 570.00 786.00 757.50 589.50 347.00 17.50 5.00 3865.60
1953 70.27 a 10.23 b 32.50 f 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 103.50 v 326.50 86.50 1.50 495.00
1954 3.00 29.00 17.50 105.50 401.00 432.00 727.50 631.00 464.50 201.50 130.50 0.50 3143.50
1955 0.00 0.00 4.00 41.50 237.50 557.50 719.00 717.50 464.00 257.62 b 0.00 n 6.00 3004.62
1956 3.50 0.00 49.50 243.50 464.00 519.00 824.50 735.00 500.89 b 0.00 z 0.00 z 0.00 z 3339.89
1957 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 585.00 h 672.00 566.50 211.50 11.79 b 10.00 1471.79
1958 1.00 88.50 45.50 149.50 621.50 693.50 876.50 844.00 383.00 212.50 65.50 30.50 4011.50
1959 27.00 0.00 43.92 a 231.50 338.50 588.50 837.00 697.00 483.50 256.50 43.00 5.50 3551.92
1960 5.50 12.00 134.50 208.97 a 385.00 616.50 940.00 719.50 541.03 a 280.00 30.00 7.00 3880.00
1961 18.50 37.50 73.00 153.50 435.50 752.50 860.00 948.50 394.50 215.00 24.64 b 1.00 3914.14
1962 0.57 d 18.50 h 41.00 320.50 323.50 557.00 762.00 736.50 577.00 278.50 93.50 27.50 3717.57
1963 3.50 77.00 98.00 160.00 428.00 603.00 743.00 817.88 a 717.50 366.50 64.50 3.50 4082.38
1964 5.50 0.00 43.00 126.00 362.70 a 568.97 a 780.50 0.00 z 440.00 0.00 z 12.00 f 7.50 2334.17
1965 1.50 18.50 27.50 187.00 288.50 482.50 726.00 732.50 304.00 316.50 76.00 11.50 3172.00
1966 2.50 1.00 63.50 129.50 394.50 453.50 661.00 662.50 591.00 185.00 33.50 18.00 3195.50
1967 8.50 15.50 21.50 42.50 310.50 590.00 728.00 808.50 603.00 222.00 49.00 0.00 3399.00
1968 7.00 61.00 88.50 95.00 320.50 494.00 723.00 612.00 458.00 145.00 16.50 4.00 3024.50
1969 0.00 0.00 39.00 165.50 420.50 621.43 b 629.50 618.00 464.00 115.00 45.50 5.00 3123.43
1970 0.00 7.50 14.00 35.00 357.00 633.50 786.00 718.00 305.50 163.50 44.00 3.50 3067.50
1971 9.50 15.50 15.50 110.50 384.50 440.69 a 697.50 826.50 299.50 170.00 21.00 0.00 2990.69
1972 0.00 25.00 104.50 80.00 413.00 543.50 683.50 773.50 343.00 180.50 27.00 16.50 3190.00
1973 10.00 7.50 26.87 a 98.00 367.50 494.50 716.50 670.00 434.00 147.00 19.50 3.00 2994.37
1974 8.00 0.50 28.00 117.50 208.00 577.50 673.73 a 638.50 417.00 151.38 a 26.79 b 9.30 a 2856.20
1975 0.00 a 0.00 7.50 37.50 317.75 a 416.50 775.00 525.97 a 361.00 134.00 68.00 25.50 2668.72
1976 7.50 1.50 17.50 128.00 342.50 373.00 650.50 660.00 521.50 177.50 55.00 6.50 2941.00
1977 0.00 35.00 14.50 190.56 c 267.24 b 607.00 624.00 723.50 354.83 a 107.47 a 12.00 4.50 2940.59
1978 0.00 11.50 146.00 148.50 283.50 526.50 693.00 602.50 399.00 147.50 15.00 b 0.00 2973.00
1979 0.00 a 2.50 79.00 177.00 377.50 542.00 745.03 a 743.50 533.50 246.00 19.00 38.50 3503.53
1980 0.00 40.50 9.82 a 294.44 c 384.18 c 475.00 716.00 544.50 480.00 237.50 78.62 a 48.10 b 3308.66
1981 32.03 a 30.50 49.00 206.50 333.00 446.50 622.00 749.50 441.96 b 121.50 53.04 b 5.37 e 3090.90
1982 0.00 25.76 c 35.00 104.50 302.50 595.86 a 671.50 698.00 433.50 170.00 10.00 0.00 3046.62
1983 7.50 38.00 78.50 115.00 357.00 482.50 628.00 791.50 334.50 176.50 47.50 0.00 3056.50
1984 1.50 2.00 41.00 103.50 271.00 460.00 717.00 733.50 379.00 159.50 17.00 0.00 2885.00
1985 0.00 0.00 10.50 211.50 407.00 502.50 814.00 616.00 322.50 139.50 17.00 0.00 a 3040.50
1986 8.50 42.50 129.00 117.50 387.50 618.00 581.50 820.00 362.50 230.00 10.50 0.00 3307.50
1987 1.50 16.50 74.50 318.50 436.50 585.00 707.00 643.00 516.00 206.00 63.50 18.50 3586.50
1988 3.50 34.50 30.00 230.00 348.50 533.00 664.50 675.00 459.00 378.00 40.50 3.50 3400.00
1989 0.50 0.00 35.00 211.50 309.50 561.00 711.50 652.00 472.50 193.50 72.50 6.50 3226.00
1990 5.50 6.50 59.00 225.50 325.00 510.50 757.50 744.50 618.50 186.50 60.50 5.00 3504.50
1991 2.00 47.00 24.50 142.50 273.00 421.50 689.50 761.50 471.00 211.50 27.00 3.50 3074.50
1992 14.00 40.50 135.00 230.50 433.50 630.00 700.00 712.00 435.00 259.00 11.50 0.00 3601.00
1993 0.00 0.00 54.50 139.50 526.50 505.00 537.50 609.00 398.50 237.50 8.00 5.50 3021.50
1994 16.00 8.00 89.50 241.50 415.50 485.50 790.50 760.50 540.00 165.50 1.00 7.00 3520.50
1995 7.00 67.00 55.50 130.50 385.00 495.50 690.50 608.50 532.50 154.00 97.50 9.50 3233.00
1996 5.50 19.50 52.00 173.50 244.50 488.50 742.00 700.00 383.00 201.50 26.50 0.00 3036.50
1997 1.00 11.00 66.50 125.00 445.50 522.50 681.00 800.00 561.00 171.50 39.00 0.00 3424.00
1998 6.00 28.50 68.00 158.00 398.50 510.00 900.50 792.00 642.50 174.00 31.00 4.81 b 3713.81
1999 1.03 a 7.50 60.00 110.50 256.00 443.00 636.00 789.90 e 424.66 a 215.97 a 130.00 2.00 k 3074.56
2000 0.00 6.00 19.63 a 231.00 306.50 493.00 654.50 694.00 433.50 180.00 0.00 0.00 3018.13
2001 0.00 0.00 54.50 136.50 402.50 435.50 665.50 777.00 555.00 a 159.50 101.50 0.00 3287.50
2002 7.50 1.00 10.00 82.00 303.50 497.00 806.00 630.50 472.24 a 0.00 z 0.00 z 0.00 z 2809.74
2003 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2004 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2005 0.00 z 0.00 z 68.00 175.50 404.50 494.00 805.50 817.50 457.00 234.50 13.50 18.48 e 3488.48
2006 7.00 4.00 33.50 159.00 430.50 587.00 890.00 795.00 542.50 188.50 74.50 1.00 3712.50
2007 0.50 7.00 73.50 g 71.50 h 374.00 558.60 e 951.00 749.00 482.50 214.50 54.50 5.00 3396.60
2008 0.50 3.50 5.50 84.00 362.00 463.50 403.50 o 655.00 g 551.00 253.50 77.00 7.50 1808.00
2009 2.00 16.00 20.00 112.50 392.50 468.50 f 623.50 h 693.50 f 396.00 o 86.44 e 54.00 e 1.00 684.44
2010 27.50 9.00 51.50 l 125.50 l 155.50 h 311.50 i 499.50 l 235.50 w 0.00 z 0.00 z 0.00 z 0.00 z 36.50
2011 0.00 z 7.50 g 7.00 t 14.00 t 247.47 b 317.50 l 346.00 p 811.54 c 612.69 d 0.00 z 14.50 h 4.00 g 1671.69
2012 8.50 2.00 32.50 226.00 321.00 466.00 825.00 836.00 351.00 l 233.00 86.50 16.50 3053.00
2013 0.00 1.50 63.11 c 10.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 64.61
Period of Record Statistics
MEAN 6.30 15.01 53.04 168.67 372.41 539.24 754.06 732.08 484.11 226.67 45.77 11.09 3392.75
S.D. 10.11 18.56 36.96 72.87 82.87 76.90 82.46 75.87 93.21 73.81 32.31 15.13 356.49
SKEW 3.51 1.77 0.94 0.37 0.39 0.50 -0.01 -0.17 0.14 0.52 1.05 2.28 0.31
MAX 70.27 88.50 146.00 346.00 621.50 752.50 951.00 948.50 749.00 422.50 146.00 77.00 4326.50
MIN 0.00 0.00 0.00 35.00 208.00 373.00 537.50 525.97 299.50 86.44 0.00 0.00 2668.72
NO YRS 88 88 87 86 89 86 85 87 87 87 86 87 72