COUNCIL, IDAHO

Monthly Total Growing Degree Days

(102187)

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
1911 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 685.00 569.50 238.00 0.00 z 0.00 g 0.00 1492.50
1912 0.00 0.00 0.00 23.50 223.50 476.50 564.64 c 524.93 a 187.50 34.50 3.50 0.00 g 2038.58
1913 0.00 0.00 0.00 54.00 234.50 405.54 b 557.50 652.07 b 317.31 d 26.50 0.00 a 0.00 b 2247.41
1914 0.00 g 0.00 a 0.00 21.50 o 261.84 c 320.00 656.68 a 653.58 a 226.00 73.50 8.04 b 0.00 f 2199.64
1915 0.00 b 0.00 a 0.00 z 154.00 112.50 291.50 541.00 810.00 269.50 54.00 2.00 0.00 2234.50
1916 0.00 a 0.00 0.00 43.00 80.00 308.00 553.50 568.00 297.50 30.50 1.00 0.00 1881.50
1917 0.00 0.00 0.00 1.00 103.50 294.50 735.00 680.50 381.50 137.50 1.00 0.00 2334.50
1918 0.00 0.00 3.50 38.00 133.50 583.50 646.00 457.00 381.00 96.00 0.00 0.00 2338.50
1919 0.00 0.00 1.50 75.00 233.50 442.00 718.00 689.00 325.00 13.00 0.00 z 0.00 z 2497.00
1920 0.00 0.00 0.00 1.50 116.00 305.50 722.50 638.50 309.00 56.00 0.00 0.00 2149.00
1921 0.00 0.00 0.00 2.00 170.50 442.00 654.50 618.50 126.50 139.00 0.00 0.00 2153.00
1922 0.00 0.00 0.00 1.50 149.00 555.00 707.50 670.00 394.00 113.50 0.00 0.00 2590.50
1923 0.00 0.00 0.00 19.50 157.00 277.50 687.17 a 619.00 418.00 45.50 0.00 0.00 2223.67
1924 0.00 0.00 0.00 53.50 356.50 422.50 705.00 634.00 366.50 53.50 5.50 0.00 2597.00
1925 0.00 0.00 a 0.00 c 57.00 295.50 434.00 792.00 571.00 294.50 17.00 0.00 0.00 2461.00
1926 0.00 0.00 2.50 170.00 176.00 504.50 776.00 655.00 178.50 78.02 a 0.00 0.00 a 2540.52
1927 0.00 0.00 0.00 53.50 103.00 423.50 679.50 569.00 223.00 55.50 2.00 0.00 2109.00
1928 0.00 a 0.00 0.50 38.00 397.00 354.00 752.50 587.00 357.00 38.50 0.00 0.00 2524.50
1929 0.00 0.00 0.00 12.50 185.50 294.50 631.00 688.50 194.50 49.00 0.00 3.00 2058.50
1930 0.00 0.00 0.00 112.50 121.50 327.00 726.50 660.00 316.00 52.00 0.00 0.00 a 2315.50
1931 0.00 0.00 0.00 45.00 279.00 451.50 786.00 709.00 289.00 70.50 3.00 0.00 2633.00
1932 0.00 a 0.00 0.00 35.00 180.00 469.50 645.00 570.50 393.50 87.00 0.00 0.00 2380.50
1933 0.00 0.00 0.00 50.50 109.50 489.00 747.00 629.50 262.00 187.07 b 0.00 0.00 2474.57
1934 0.00 0.00 17.50 181.00 356.00 394.50 710.50 718.00 257.00 127.00 6.50 0.00 2768.00
1935 0.00 0.00 0.00 20.00 149.00 391.50 655.50 609.00 420.00 141.50 0.00 0.00 2386.50
1936 0.00 0.00 0.00 144.00 318.00 442.00 789.50 676.50 292.00 153.50 0.00 0.00 2815.50
1937 0.00 0.00 0.00 21.50 231.00 357.00 739.00 571.00 402.50 108.00 0.00 d 0.00 2430.00
1938 0.00 0.00 0.00 51.00 182.50 471.21 a 689.50 588.50 485.00 82.50 0.00 z 0.00 z 2550.21
1939 0.00 z 0.00 z 0.00 z 105.50 283.50 307.50 710.50 710.00 348.00 63.00 0.00 0.00 2528.00
1940 0.00 0.00 2.50 28.50 307.50 549.50 716.50 0.00 z 356.00 87.00 0.00 0.00 a 2047.50
1941 0.00 0.00 a 5.50 59.00 177.22 a 313.45 a 720.50 570.00 168.75 b 42.00 0.50 0.00 2056.92
1942 0.00 0.00 0.00 60.00 0.00 z 0.00 z 800.50 696.95 c 399.50 136.50 0.00 b 0.00 b 2093.45
1943 0.00 0.00 1.50 95.17 a 156.00 298.00 681.47 b 596.00 486.00 147.50 0.00 0.00 2461.64
1944 492.00 0.00 0.00 47.50 265.50 307.76 a 651.00 619.00 394.00 205.00 0.00 0.00 2981.76
1945 0.00 0.00 0.00 46.50 216.50 294.00 693.50 647.00 226.00 179.50 0.00 0.00 2303.00
1946 0.00 0.00 2.50 117.50 229.50 414.50 697.50 663.50 252.93 a 14.98 a 0.00 0.00 2392.91
1947 0.00 0.00 20.00 87.50 349.00 270.50 707.50 575.50 317.00 115.50 0.00 b 0.00 a 2442.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 537.50 325.50 104.00 0.00 0.00 967.00
1949 0.00 0.00 0.00 89.50 348.00 381.00 658.50 713.50 439.50 3.21 b 0.00 0.00 2633.21
1950 0.00 c 0.00 1.50 16.00 146.50 351.50 640.50 648.50 374.00 95.50 0.00 0.00 2274.00
1951 0.00 0.00 0.00 60.50 200.50 304.50 706.50 615.50 340.00 51.67 d 0.00 0.00 2279.17
1952 0.00 0.00 0.00 73.50 l 219.00 394.00 659.00 625.00 445.00 135.50 0.00 0.00 2477.50
1953 0.00 0.00 g 0.00 z 60.50 124.50 298.50 754.00 684.00 467.00 106.50 0.50 0.00 2495.50
1954 0.00 0.00 1.00 40.00 301.00 313.00 715.50 580.00 348.50 51.50 3.00 0.00 2353.50
1955 0.00 0.00 0.00 5.50 137.00 440.50 626.00 791.00 364.50 95.00 1.00 0.00 2460.50
1956 0.00 0.00 5.50 72.50 303.00 390.50 771.00 640.00 371.00 83.50 0.00 0.00 2637.00
1957 0.00 0.00 0.00 32.50 279.50 444.50 684.50 655.50 455.00 68.00 0.00 0.00 2619.50
1958 0.00 0.00 0.00 16.50 403.00 469.14 a 696.00 762.00 294.44 c 85.50 0.00 0.00 2726.58
1959 0.00 0.00 0.00 38.57 b 114.50 492.00 734.00 562.50 240.50 45.50 0.00 0.00 2227.57
1960 0.00 0.00 0.00 48.50 127.50 447.00 796.50 496.00 376.00 0.00 z 0.00 z 0.00 x 2291.50
1961 0.00 0.00 3.00 37.50 262.50 673.00 817.50 844.50 222.00 67.00 0.00 0.00 2927.00
1962 0.00 c 0.00 0.00 e 103.50 124.00 b 453.00 653.00 568.85 a 358.97 a 33.58 a 11.00 0.00 2305.90
1963 0.00 a 0.00 2.50 o 35.50 268.00 351.00 600.76 b 716.50 461.50 170.00 0.00 0.00 2603.26
1964 0.00 0.00 0.00 a 10.00 151.90 a 326.50 685.00 522.50 256.03 a 91.00 0.00 0.00 2042.93
1965 0.00 0.00 d 3.50 p 66.50 171.00 423.00 662.00 572.00 197.00 98.50 3.00 0.00 2193.00
1966 0.00 0.00 22.50 g 42.50 311.50 366.50 695.00 648.00 474.50 34.50 0.50 0.00 2573.00
1967 0.00 0.00 o 0.00 r 0.00 194.50 384.00 800.50 799.00 476.50 27.50 2.50 0.00 m 2684.50
1968 0.00 e 0.00 0.00 c 20.50 177.73 a 432.78 c 815.00 557.50 330.00 44.00 0.00 0.00 2377.51
1969 0.00 0.00 0.00 57.50 313.50 430.00 671.00 703.00 381.00 8.50 1.00 0.00 2565.50
1970 0.00 0.00 0.00 2.00 237.00 523.00 748.50 761.50 226.00 88.50 0.00 0.00 2586.50
1971 0.00 0.00 0.00 24.00 312.50 349.50 746.50 845.00 244.00 108.50 a 0.00 0.00 2630.00
1972 0.00 0.00 18.50 16.50 303.50 516.50 689.50 766.50 228.00 146.50 0.00 0.00 a 2685.50
1973 0.00 b 0.00 c 1.00 43.00 286.00 471.50 797.00 704.50 357.50 86.00 8.50 0.00 a 2755.00
1974 0.00 a 0.00 3.00 59.44 c 175.84 b 615.50 725.40 a 692.00 435.00 b 108.50 0.00 0.00 2814.69
1975 0.00 0.00 0.00 3.00 168.00 370.50 849.50 564.00 484.00 88.00 0.00 0.00 2527.00
1976 0.00 0.00 0.00 34.50 305.50 366.50 742.00 518.50 450.50 75.50 1.00 0.00 2494.00
1977 0.00 0.00 0.00 192.00 106.50 631.00 707.50 718.50 336.21 a 66.00 0.00 0.00 2757.71
1978 0.00 0.00 52.00 44.50 136.00 410.00 707.00 617.50 298.50 128.00 1.00 0.00 2394.50
1979 0.00 0.00 0.00 48.00 250.00 481.50 769.00 701.50 479.00 176.50 0.00 0.00 2905.50
1980 0.00 a 0.00 0.00 109.00 232.50 340.00 698.00 561.50 352.76 a 116.00 3.00 0.00 2412.76
1981 0.00 0.00 0.00 a 90.58 d 182.50 352.50 661.00 798.50 438.00 16.61 c 0.00 b 0.00 2539.68
1982 0.00 0.00 0.00 23.33 c 163.61 d 453.00 597.00 742.00 317.50 42.00 0.00 n 0.00 a 2338.44
1983 0.00 0.00 5.50 15.00 p 94.00 p 410.00 590.50 716.00 316.00 83.18 a 14.00 l 0.00 j 2121.18
1984 0.00 j 0.00 i 0.00 l 13.50 l 157.50 327.00 719.50 725.50 293.00 94.03 a 0.00 m 0.00 2316.53
1985 0.00 0.00 0.00 105.50 280.00 459.50 891.50 562.00 186.00 25.50 0.00 0.00 2510.00
1986 0.00 0.00 17.50 37.50 221.43 c 604.00 565.50 815.00 243.00 47.00 0.00 z 0.00 2550.93
1987 0.00 0.00 9.50 174.50 339.50 504.00 590.50 574.00 427.50 134.00 6.21 a 0.00 2759.71
1988 0.00 0.00 0.00 b 93.10 a 219.07 a 574.50 756.50 676.50 360.50 272.50 8.50 0.00 2961.17
1989 0.00 q 0.00 1.60 b 112.00 50.00 v 0.00 z 0.00 z 0.00 z 207.50 k 30.50 0.00 0.00 l 144.10
1990 0.00 k 0.00 u 2.00 v 96.50 l 92.50 j 218.50 l 484.50 l 543.00 i 348.00 m 47.50 k 0.00 j 0.00 n 0.00
1991 0.00 l 0.00 i 0.50 k 73.00 168.00 i 199.50 k 444.00 j 498.00 j 267.00 j 53.00 m 0.50 o 0.00 l 73.00
1992 0.00 k 0.00 l 7.50 j 58.50 n 210.00 m 350.00 j 408.50 i 445.50 m 226.50 m 16.00 m 0.00 k 0.00 o 0.00
1993 0.00 n 0.00 j 0.00 b 8.79 a 227.00 l 175.00 i 259.50 k 375.00 i 225.50 i 81.00 l 0.00 p 0.00 j 8.79
1994 0.00 n 0.00 j 3.50 j 67.50 l 218.00 k 468.00 503.50 m 811.17 a 294.00 k 35.50 m 0.00 j 0.00 o 1279.17
1995 0.00 k 0.00 m 0.00 j 19.50 l 138.00 k 374.48 a 396.00 m 560.50 271.50 k 10.50 j 0.00 m 0.00 n 934.98
1996 0.00 n 0.00 l 0.00 m 41.90 a 77.50 i 270.50 k 474.50 l 0.00 z 0.00 z 0.00 z 0.00 z 0.00 l 41.90
1997 0.00 t 0.00 r 0.00 z 0.00 z 163.50 n 304.50 j 399.00 l 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1998 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 285.50 p 31.50 o 0.00 q 0.00 z 0.00
1999 0.00 s 0.00 q 0.00 z 3.50 u 89.00 s 135.00 s 292.00 s 565.50 h 118.50 s 57.00 s 4.00 v 0.00 x 0.00
2000 0.00 p 0.00 m 0.00 i 77.50 j 162.50 k 315.50 k 462.50 m 603.00 h 245.00 k 36.50 l 0.00 l 0.00 k 0.00
2001 0.00 k 0.00 j 0.00 i 38.00 j 142.00 k 215.50 n 416.50 m 613.50 h 170.50 q 60.50 m 0.00 o 0.00 n 0.00
2002 0.00 m 0.00 n 0.00 k 22.50 k 98.50 m 255.00 p 632.00 j 427.00 i 228.00 m 53.50 i 0.00 o 0.00 m 0.00
2003 0.00 o 0.00 k 12.00 m 26.50 i 131.00 l 268.00 n 585.50 k 501.50 l 161.00 p 141.50 l 0.00 m 0.00 n 0.00
2004 0.00 q 0.00 m 12.50 n 42.50 p 77.50 q 265.00 m 337.50 q 324.50 p 196.00 l 100.00 p 0.00 k 0.00 l 0.00
2005 0.00 o 0.00 t 1.50 m 30.00 m 88.50 m 199.50 m 384.50 o 405.50 n 99.50 r 8.50 w 0.00 o 0.00 n 0.00
2006 0.00 r 0.00 m 0.00 o 22.00 n 199.00 o 204.50 q 418.50 q 303.00 s 150.50 q 45.50 o 6.50 q 0.00 y 0.00
2007 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 687.50 371.00 34.50 0.00 0.00 g 1093.00
2008 0.00 f 0.00 0.00 14.00 219.50 399.00 769.50 691.00 320.00 76.50 3.00 0.00 2492.50
2009 0.00 0.00 0.00 47.50 249.50 393.00 591.50 f 671.50 151.50 u 27.00 g 0.00 0.00 1361.50
2010 0.00 0.00 0.00 52.50 89.50 356.50 652.50 604.00 352.00 161.50 4.00 0.00 2272.50
2011 0.00 0.00 0.00 4.00 128.50 295.00 643.00 738.50 476.50 73.88 a 0.00 0.00 c 2359.38
2012 0.00 b 0.00 7.00 105.50 186.50 393.00 836.50 779.28 b 426.67 c 64.14 b 5.50 0.00 2804.08
2013 0.00 0.00 6.20 a 4.00 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 6.20
Period of Record Statistics
MEAN 6.31 0.00 2.50 55.79 215.56 410.83 702.81 653.08 336.96 84.82 1.25 0.04 2477.51
S.D. 55.71 0.00 7.22 44.89 80.13 90.42 71.18 85.40 88.97 50.92 2.42 0.34 245.79
SKEW 8.66 0.00 4.89 1.17 0.35 0.66 -0.03 0.25 -0.16 0.90 2.23 8.54 0.00
MAX 492.00 0.00 52.00 192.00 403.00 673.00 891.50 845.00 486.00 272.50 11.00 3.00 2981.76
MIN 0.00 0.00 0.00 0.00 80.00 270.50 541.00 457.00 126.50 3.21 0.00 0.00 1881.50
NO YRS 78 79 76 81 79 82 81 85 83 82 77 76 60