PRIEST RIVER EXP STN, IDAHO

Monthly Total Growing Degree Days

(107386)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1898 0.00 z 6.00 g 6.00 212.50 352.50 589.00 717.50 633.00 j 441.00 69.00 0.00 z 0.00 z 2387.50
1899 0.00 z 0.00 z 0.50 z 29.00 263.50 373.50 f 916.00 668.00 599.00 163.00 120.50 1.00 2760.00
1900 0.00 0.00 100.00 278.50 463.00 89.50 y 634.00 g 614.50 449.00 156.00 4.00 13.00 2078.00
1901 0.00 1.00 16.50 113.00 457.50 425.50 686.00 823.50 357.00 276.00 17.00 3.50 3176.50
1902 8.50 2.50 2.00 100.50 390.00 424.00 623.00 625.00 360.00 230.50 1.00 0.00 2767.00
1903 0.00 0.00 e 29.50 90.00 250.00 h 531.00 f 629.50 688.00 318.50 0.00 z 30.50 0.00 1786.00
1904 0.00 w 0.00 j 2.00 136.20 e 361.00 487.00 766.50 733.00 0.00 z 0.00 z 0.00 z 0.00 z 2485.70
1905 0.00 11.50 70.00 261.50 456.50 689.00 985.00 829.50 494.00 95.50 1.00 0.00 d 3893.50
1906 0.00 0.00 0.00 z 0.00 z 0.00 z 510.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 510.00
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 0.00
1912 0.00 0.00 6.00 111.50 356.00 616.50 639.50 551.00 255.00 51.50 1.50 0.00 2588.50
1913 0.00 0.00 0.00 104.50 298.00 544.00 619.50 655.00 377.50 84.00 4.50 0.00 2687.00
1914 0.50 0.00 z 16.00 142.00 382.50 472.00 743.50 677.00 331.50 182.50 29.50 0.00 2977.00
1915 0.00 0.00 60.50 250.50 351.50 465.00 657.00 846.50 356.50 161.50 10.00 0.00 3159.00
1916 0.00 0.00 16.50 96.50 197.00 469.14 a 656.50 666.00 398.00 77.00 6.50 0.00 2583.14
1917 0.00 0.00 0.00 21.00 290.00 448.50 741.00 705.00 478.50 184.00 18.50 9.00 2895.50
1918 0.00 0.00 31.50 125.00 222.50 606.00 744.50 557.50 509.50 233.50 0.00 1.50 3031.50
1919 1.50 0.00 9.00 146.11 c 318.00 484.50 750.00 710.50 398.50 104.50 0.00 0.00 2922.61
1920 3.50 0.00 10.50 65.50 210.00 436.00 801.00 710.00 366.50 118.50 9.31 a 0.00 c 2730.81
1921 0.00 2.00 3.50 68.00 353.00 585.00 662.00 702.00 252.50 181.19 b 9.50 5.50 2824.19
1922 0.00 0.00 0.00 52.50 281.50 656.50 738.00 761.50 458.00 215.50 0.50 0.00 b 3164.00
1923 0.50 0.00 18.00 104.00 328.50 536.00 816.50 718.50 482.00 212.50 2.07 a 0.00 3218.57
1924 0.00 5.50 1.00 95.50 463.50 510.00 768.50 653.00 447.00 123.00 4.50 9.50 3081.00
1925 0.00 1.00 21.00 203.00 429.50 592.50 833.50 679.50 453.00 70.50 0.00 0.00 3283.50
1926 0.00 0.00 35.50 300.00 360.00 571.50 841.00 667.00 258.50 194.50 10.50 3.00 3241.50
1927 0.00 0.00 3.50 106.50 261.00 584.50 748.00 719.50 385.00 177.00 10.00 1.00 2996.00
1928 0.00 0.00 a 26.00 91.50 477.50 529.00 798.00 670.00 459.00 128.50 3.00 0.00 3182.50
1929 0.00 0.00 3.00 98.50 365.50 525.00 705.50 776.50 362.50 157.50 0.00 1.00 2995.00
1930 0.00 7.00 33.00 253.00 336.00 482.50 767.00 792.50 489.50 102.50 7.00 0.00 3270.00
1931 0.00 0.00 19.00 153.50 432.00 548.00 778.50 716.50 394.50 119.00 23.00 0.00 3184.00
1932 0.00 6.00 5.00 129.50 345.00 580.00 694.50 738.00 432.50 156.00 17.00 6.50 3110.00
1933 0.00 0.00 1.50 115.00 264.50 564.00 756.50 769.50 349.50 205.00 17.00 16.00 3058.50
1934 0.00 0.50 60.00 363.50 482.00 576.00 755.50 739.00 369.00 201.50 52.00 0.00 3599.00
1935 0.00 0.00 0.00 85.00 325.50 516.00 750.50 656.50 522.50 165.50 0.00 0.00 3021.50
1936 0.00 0.00 1.50 227.50 527.50 625.00 793.50 729.00 412.50 208.50 0.00 0.50 3525.50
1937 0.00 0.00 3.50 64.00 387.00 583.00 809.50 601.00 481.00 242.00 12.50 0.00 3183.50
1938 0.00 0.00 0.00 143.00 360.00 614.50 834.50 644.00 651.50 202.00 1.50 0.00 3451.00
1939 0.00 0.00 37.00 205.00 416.00 442.00 771.00 741.00 471.50 156.50 4.50 11.50 3256.00
1940 0.00 0.00 44.50 187.50 472.50 647.00 817.50 750.72 a 625.50 269.50 3.00 0.00 3817.72
1941 0.00 0.00 86.00 260.50 410.00 593.50 873.00 726.50 355.00 154.50 23.50 9.00 3491.50
1942 0.00 0.00 15.00 188.00 331.50 473.50 790.50 765.00 500.00 215.00 0.00 0.00 3278.50
1943 0.00 0.00 5.00 182.50 269.00 447.00 748.50 665.00 502.00 230.50 3.50 4.50 3057.50
1944 0.00 0.00 11.00 172.00 408.50 591.00 751.00 691.00 530.50 303.50 21.50 0.00 3480.00
1945 0.00 0.00 z 11.50 68.00 410.00 515.00 797.50 748.00 391.50 237.50 12.00 0.00 3191.00
1946 0.00 0.00 12.00 166.50 430.00 491.50 737.00 708.00 408.50 69.00 0.00 0.00 3022.50
1947 0.50 4.00 65.00 167.00 462.00 503.00 750.00 662.50 429.00 198.50 2.50 0.00 3244.00
1948 0.00 3.50 4.50 83.00 368.50 677.00 656.50 640.00 439.00 158.50 0.00 0.00 3030.50
1949 0.00 0.00 0.00 171.00 471.50 509.00 731.50 722.50 478.50 66.50 31.50 3.00 3185.00
1950 0.00 0.00 0.00 38.50 280.50 536.50 751.00 746.00 476.50 137.50 6.50 0.00 2973.00
1951 0.00 3.00 4.00 127.00 369.00 487.00 761.50 706.00 421.50 167.92 a 1.00 1.50 3049.42
1952 0.00 0.00 6.00 162.00 395.00 509.48 a 727.47 a 699.00 525.50 248.00 4.00 0.00 3276.45
1953 7.50 0.50 18.50 126.50 337.50 458.50 719.00 729.50 469.50 212.00 24.50 0.00 3103.50
1954 0.00 0.00 0.00 54.00 373.50 442.00 683.00 622.00 437.00 103.50 38.50 0.00 2753.50
1955 0.00 0.00 0.00 15.50 222.50 566.50 705.50 654.00 432.50 184.00 5.00 0.00 2785.50
1956 0.00 0.00 6.00 177.50 452.00 487.00 779.50 700.50 458.00 154.50 1.50 1.00 3217.50
1957 0.00 1.50 0.50 122.50 522.50 588.00 677.50 625.50 523.50 131.50 0.00 0.00 3193.00
1958 0.00 8.00 31.50 99.00 599.00 683.00 825.00 854.50 437.00 186.50 13.00 0.50 3737.00
1959 0.00 0.00 0.00 131.50 261.00 555.50 757.50 604.50 376.00 129.00 9.00 0.00 2824.00
1960 0.00 0.00 39.00 115.50 290.00 546.00 848.00 599.00 451.00 183.50 1.00 0.00 3073.00
1961 0.00 1.50 29.00 111.21 a 378.00 693.00 827.50 891.00 343.00 125.50 0.00 0.00 3399.71
1962 0.00 0.00 2.50 185.50 312.50 527.50 690.50 665.00 474.00 151.00 23.50 0.00 3032.00
1963 0.00 3.00 26.00 133.00 360.50 583.50 699.00 770.50 617.50 253.50 5.50 0.00 3452.00
1964 0.00 0.00 8.50 64.50 326.50 567.50 757.00 581.00 337.50 179.00 6.00 0.00 2827.50
1965 0.00 0.00 3.50 155.00 300.00 533.00 774.00 745.50 280.00 204.50 32.00 0.00 3027.50
1966 0.00 0.00 31.00 121.00 437.50 463.50 725.50 712.50 602.00 161.00 1.00 0.00 3255.00
1967 0.00 0.50 0.50 22.50 337.50 620.50 768.50 848.50 623.50 154.00 10.00 0.00 3386.00
1968 0.00 0.00 16.00 97.50 338.00 513.00 772.50 642.00 430.50 60.00 2.00 0.00 2871.50
1969 0.00 0.00 14.50 109.00 448.50 634.00 664.50 666.50 488.50 92.00 11.50 0.00 3129.00
1970 0.00 0.00 1.50 15.50 393.00 673.50 838.00 770.00 363.50 120.00 4.00 0.00 3179.00
1971 0.00 0.00 1.50 98.00 436.50 521.50 769.00 849.00 334.50 154.50 0.00 0.00 3164.50
1972 0.00 6.50 32.50 49.00 471.00 597.50 712.50 846.50 368.00 186.00 0.00 0.50 3270.00
1973 0.00 0.00 11.50 123.00 423.00 578.50 810.50 772.00 511.00 164.50 0.00 0.00 3394.00
1974 3.50 0.00 4.00 163.50 284.00 694.00 777.00 760.50 526.50 167.50 13.00 0.00 3393.50
1975 0.00 0.00 0.00 53.50 379.50 545.00 942.50 701.50 527.50 197.00 42.00 3.00 3391.50
1976 0.00 0.00 1.50 101.00 401.50 467.50 745.50 699.50 550.00 159.00 15.00 0.00 a 3140.50
1977 0.00 0.00 3.50 209.50 267.00 615.50 695.00 783.50 400.50 141.00 5.50 1.00 3122.00
1978 0.00 0.00 66.00 169.50 329.00 632.00 808.50 698.50 461.00 189.00 5.00 0.00 3358.50
1979 0.00 0.00 5.00 104.50 428.00 633.00 836.00 853.50 587.50 244.00 0.00 0.50 3692.00
1980 0.00 a 0.00 1.50 263.50 462.00 518.50 752.00 605.50 470.00 187.50 40.50 10.00 3311.00
1981 0.00 9.50 26.00 148.50 360.50 433.50 708.50 809.00 477.50 111.50 14.00 0.00 3098.50
1982 0.00 3.50 8.50 73.00 379.00 690.00 690.00 736.00 487.00 137.00 2.00 0.00 3206.00
1983 2.50 0.00 24.00 139.00 435.00 578.50 686.50 820.50 358.00 159.00 30.00 0.00 3233.00
1984 0.00 0.00 5.50 81.50 235.50 453.50 719.50 711.00 318.00 103.00 0.00 0.00 2627.50
1985 0.00 0.00 0.00 132.00 468.50 583.50 933.00 684.00 341.50 114.00 8.00 0.00 3264.50
1986 0.00 4.00 36.00 115.50 425.00 712.50 659.00 875.00 348.50 184.00 2.00 0.00 3361.50
1987 0.00 0.00 23.50 278.00 458.00 665.00 761.00 686.00 554.50 153.50 41.00 0.00 3620.50
1988 0.00 0.00 7.50 230.00 388.50 577.00 709.50 727.50 430.50 255.50 15.00 0.00 3341.00
1989 0.00 0.00 1.00 188.50 338.00 610.50 754.50 659.00 450.50 134.00 36.50 0.00 3172.50
1990 0.00 0.50 23.50 227.00 350.00 527.50 816.50 770.00 603.50 80.00 28.00 0.00 3426.50
1991 0.00 0.00 9.00 154.00 408.00 555.00 757.50 794.00 502.00 171.00 3.50 0.00 3354.00
1992 0.00 0.00 90.00 224.00 491.00 693.00 714.00 713.50 345.50 192.00 3.50 0.00 3466.50
1993 0.00 0.00 8.50 102.00 550.00 538.00 558.50 624.50 412.50 192.00 3.50 0.00 2989.50
1994 0.00 0.00 32.50 223.00 442.00 542.00 855.50 781.50 531.50 103.00 0.00 0.00 3511.00
1995 0.00 1.50 12.50 101.00 445.50 541.50 753.50 613.50 497.50 92.00 19.00 4.00 3081.50
1996 0.00 0.00 2.00 134.50 255.50 540.00 783.00 712.50 350.00 125.00 0.00 0.00 2902.50
1997 0.00 0.00 3.50 53.00 419.50 542.00 719.00 773.00 511.00 131.00 7.50 0.00 3159.50
1998 0.00 0.00 32.00 169.50 455.00 535.00 909.50 793.50 584.00 113.50 15.50 0.00 3607.50
1999 0.00 0.00 11.50 96.50 304.50 492.50 661.50 809.00 357.00 96.50 40.00 0.00 2869.00
2000 0.00 0.00 5.00 189.00 329.50 520.50 736.50 707.50 378.50 106.50 0.00 0.00 2973.00
2001 0.00 0.00 7.00 103.50 409.50 476.50 745.00 795.00 534.50 64.00 29.50 0.00 3164.50
2002 0.00 1.00 1.50 142.00 322.00 615.00 825.50 659.00 431.50 88.50 7.00 1.00 3094.00
2003 1.00 0.00 34.00 156.50 354.00 614.50 828.50 814.00 486.00 224.50 5.00 0.00 3518.00
2004 0.00 0.00 44.00 208.00 370.50 579.50 797.00 780.00 398.50 171.00 5.00 0.00 3353.50
2005 0.00 0.00 21.50 160.50 444.50 541.50 761.50 713.00 383.50 163.50 0.00 0.00 3189.50
2006 0.00 0.00 7.50 156.50 421.00 613.50 872.50 734.00 466.50 116.50 34.50 0.00 3422.50
2007 0.00 0.00 38.50 138.00 419.50 553.50 931.50 717.50 411.00 112.00 17.00 0.50 3339.00
2008 0.00 0.00 0.00 28.50 406.00 507.50 758.50 725.50 402.00 115.00 20.00 0.00 2963.00
2009 0.00 0.00 0.50 95.00 384.50 578.50 816.00 777.00 536.00 61.50 1.50 0.00 3250.50
2010 0.00 0.00 17.50 165.00 287.50 514.50 709.50 672.00 416.50 159.50 14.00 0.00 2956.00
2011 0.00 0.00 4.00 20.00 305.00 480.50 671.50 711.00 528.50 159.50 0.00 0.00 2880.00
2012 0.00 0.00 8.50 213.00 362.00 540.50 887.00 776.00 487.50 152.50 51.00 2.50 3480.50
2013 0.00 0.00 17.05 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 17.05
Period of Record Statistics
MEAN 0.27 0.84 16.80 137.19 376.29 552.83 759.65 719.36 443.58 156.81 12.15 1.16 3179.87
S.D. 1.20 2.10 20.65 67.93 77.54 69.72 74.41 71.63 85.10 53.81 16.62 2.95 261.40
SKEW 5.44 3.04 1.90 0.55 0.00 0.27 0.38 0.09 0.14 0.19 3.13 3.10 0.09
MAX 8.50 11.50 100.00 363.50 599.00 712.50 985.00 891.00 651.50 303.50 120.50 16.00 3893.50
MIN 0.00 0.00 0.00 15.50 197.00 424.00 558.50 551.00 252.50 51.50 0.00 0.00 2583.14
NO YRS 108 106 109 109 108 107 108 108 108 107 107 108 102