COUNCIL, IDAHO

Monthly Total Growing Degree Days

(102187)

Base Temperature = 50 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
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 n 53.08 d 1.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 53.08
Period of Record Statistics
MEAN 0.00 0.00 3.32 53.41 224.50 432.58 709.84 666.86 352.96 83.74 1.37 0.00 2557.36
S.D. 0.00 0.00 9.46 42.67 77.29 91.60 74.65 98.40 87.62 51.66 2.75 0.00 224.17
SKEW 0.00 0.00 4.15 1.36 0.26 0.80 0.20 0.10 -0.17 1.20 2.28 0.00 -0.15
MAX 0.00 0.00 52.00 192.00 403.00 673.00 891.50 845.00 484.00 272.50 11.00 0.00 2961.17
MIN 0.00 0.00 0.00 0.00 106.50 298.50 565.50 496.00 186.00 3.21 0.00 0.00 2042.93
NO YRS 39 38 36 42 39 42 40 43 41 41 37 38 29