ELK RIVER 1 S, IDAHO

Monthly Total Growing Degree Days

(102892)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201212
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
1952 0.00 0.00 7.50 198.50 443.50 520.86 a 707.32 a 686.00 496.50 313.00 7.50 0.00 3380.68
1953 7.50 3.00 29.50 139.50 254.50 422.78 c 707.00 704.50 473.50 238.50 25.00 0.00 3005.28
1954 1.50 0.00 7.50 61.50 383.00 437.00 735.50 621.50 473.28 a 162.48 b 67.24 a 0.00 2950.50
1955 0.00 0.00 0.00 26.50 221.50 557.00 742.50 694.00 447.00 234.64 b 4.00 0.00 2927.14
1956 0.00 1.00 13.50 195.50 417.97 b 514.50 834.62 e 646.50 498.00 175.50 21.50 5.50 3324.08
1957 0.00 0.00 z 70.50 n 176.50 601.00 565.71 b 704.00 659.30 c 553.97 a 211.66 b 1.73 d 0.00 3473.87
1958 0.00 18.50 24.50 78.00 553.19 b 669.31 a 813.50 821.00 431.00 227.50 9.31 a 0.00 3645.81
1959 9.50 0.00 3.50 93.00 222.50 570.52 a 721.50 617.00 412.00 153.50 13.00 0.00 2816.02
1960 0.00 0.00 47.50 106.50 277.50 490.00 808.07 a 607.71 b 493.97 a 182.38 a 0.50 0.00 3014.12
1961 0.00 0.00 13.00 86.50 308.00 660.00 761.50 877.00 294.50 122.50 0.00 0.00 3123.00
1962 0.00 0.00 2.50 151.00 250.00 483.50 655.50 649.50 512.59 a 180.00 26.00 1.00 g 2910.59
1963 0.00 0.00 45.50 84.83 a 367.00 489.00 678.00 762.50 643.97 a 272.50 12.00 0.00 3355.29
1964 1.50 0.00 9.00 44.50 233.00 478.50 758.50 586.50 316.50 188.00 17.50 0.00 2633.50
1965 0.00 0.00 1.50 135.00 237.50 445.00 674.00 673.00 251.50 233.00 38.50 0.00 2689.00
1966 0.00 0.50 24.50 87.50 348.00 408.00 651.00 666.50 544.50 118.00 17.50 0.00 2866.00
1967 0.00 0.00 2.50 32.00 254.00 554.50 0.00 z 774.50 575.50 120.50 18.50 0.00 2332.00
1968 0.00 8.00 36.34 b 96.92 d 274.50 491.50 748.00 636.50 405.00 79.50 0.00 0.00 2776.27
1969 0.00 0.00 16.50 120.50 384.50 571.50 658.50 686.50 434.00 80.00 12.00 0.00 2964.00
1970 0.00 0.00 2.50 19.00 304.50 601.61 b 749.00 686.00 257.50 98.00 19.50 0.00 2737.61
1971 1.00 3.50 2.50 63.00 358.57 a 404.50 695.50 800.00 237.00 127.00 0.00 0.00 2692.57
1972 0.00 0.00 37.50 33.00 361.84 b 534.00 667.00 767.00 310.50 173.00 10.34 a 0.00 2894.19
1973 0.00 2.00 11.00 112.00 360.00 482.00 713.00 712.00 427.00 136.00 7.50 0.00 2962.50
1974 0.00 0.00 15.50 97.50 248.50 630.00 695.50 650.50 471.50 164.00 26.50 0.00 2999.50
1975 3.00 1.00 9.00 12.50 222.50 487.00 910.50 584.50 451.00 160.50 32.50 5.00 2879.00
1976 0.00 0.00 5.50 114.50 383.50 419.50 687.50 646.00 540.50 168.95 a 50.00 0.00 e 3015.95
1977 0.00 4.50 7.00 245.50 238.00 636.50 674.00 771.00 371.00 132.00 3.00 19.00 g 3082.50
1978 0.00 a 1.00 111.50 136.50 270.00 556.50 723.50 633.50 412.00 173.00 2.50 0.00 3020.00
1979 0.00 0.00 35.00 96.00 333.50 523.00 751.50 767.50 520.50 240.50 5.50 0.00 3273.00
1980 0.00 6.00 4.00 248.00 366.00 467.50 726.00 559.50 440.50 195.50 58.50 0.50 3072.00
1981 0.00 2.07 a 50.00 167.00 315.00 417.00 671.50 799.50 468.50 93.00 34.50 0.00 3018.07
1982 0.00 j 1.00 8.50 66.00 263.00 591.50 694.50 741.00 412.00 135.50 0.50 0.00 2913.50
1983 0.00 2.50 38.50 98.00 j 345.50 519.00 650.00 828.50 324.00 133.00 39.00 0.00 2880.00
1984 0.00 1.50 4.50 79.00 219.50 447.00 699.50 753.00 382.50 142.50 0.00 0.00 2729.00
1985 0.00 0.00 4.50 174.50 389.50 484.00 845.00 598.00 285.00 82.00 5.00 0.00 2867.50
1986 0.00 0.00 33.50 115.00 372.50 686.50 564.50 824.50 325.50 181.50 1.50 0.00 3105.00
1987 0.00 0.00 9.50 271.55 a 441.50 602.50 714.00 607.00 513.00 184.50 34.00 0.50 3378.05
1988 0.00 2.50 16.00 205.00 356.00 628.50 677.35 a 684.50 421.00 320.00 32.50 0.00 3343.35
1989 0.00 0.00 10.00 137.00 262.50 541.00 732.00 630.50 434.00 146.50 31.00 0.00 2924.50
1990 0.50 0.00 30.50 203.00 277.00 502.00 767.00 752.50 630.00 95.00 3.00 0.00 3260.50
1991 0.00 0.00 3.10 a 95.17 a 269.50 420.50 721.50 782.50 472.00 169.50 0.00 j 0.00 b 2933.77
1992 0.00 5.00 116.00 121.00 m 296.00 i 645.50 670.00 682.00 361.50 204.00 3.00 0.00 2687.00
1993 0.00 0.00 11.00 66.50 271.00 k 491.50 505.50 627.00 411.50 197.50 0.00 0.00 2310.50
1994 0.00 0.00 29.50 158.00 407.50 491.50 807.00 787.50 530.50 140.00 0.00 0.00 a 3351.50
1995 0.00 3.00 5.00 81.50 333.50 473.50 703.50 592.00 371.50 i 65.00 17.50 0.00 2274.50
1996 0.00 0.00 11.50 102.00 123.50 n 259.00 m 779.00 702.50 207.00 o 79.00 k 0.00 0.00 a 1595.00
1997 0.00 0.00 8.50 44.00 89.00 t 506.00 684.00 799.00 285.50 j 75.50 l 20.00 0.00 2061.50
1998 0.00 2.50 27.50 48.50 j 378.00 483.00 901.00 783.00 298.00 o 78.50 m 2.50 0.00 2577.50
1999 0.00 0.00 a 20.87 e 15.50 l 27.50 w 427.24 a 627.75 e 803.79 c 211.50 o 54.50 p 13.50 o 0.00 c 1879.64
2000 0.00 c 0.00 13.00 51.00 o 188.00 n 442.20 e 676.83 d 733.27 e 202.50 j 36.00 q 1.00 o 0.00 l 1865.30
2001 0.00 0.00 a 1.79 e 65.77 d 248.50 k 294.50 j 725.92 a 761.80 d 366.50 i 90.00 f 10.00 o 0.00 t 1555.27
2002 0.00 o 0.00 r 0.00 x 5.00 p 96.00 t 290.50 o 822.00 609.00 437.00 43.50 o 11.00 0.00 1879.00
2003 0.00 0.00 a 17.00 g 117.50 231.39 c 378.00 k 450.00 n 509.50 k 476.00 236.50 0.00 0.00 1061.39
2004 0.00 0.00 35.00 169.20 e 327.00 516.50 f 799.50 771.00 397.50 171.50 1.50 0.00 2672.20
2005 0.00 0.00 25.50 118.50 338.00 425.50 573.00 i 703.00 0.00 z 0.00 z 0.00 z 0.00 1610.50
2006 0.00 1.00 l 7.00 n 0.00 z 361.00 581.00 854.00 708.00 452.50 129.50 28.50 0.00 3114.50
2007 0.00 0.00 29.00 125.00 330.50 523.00 921.50 712.50 447.50 121.00 8.00 0.00 3218.00
2008 0.00 0.00 0.00 27.50 280.00 437.00 729.00 719.50 427.00 132.00 13.00 0.00 e 2765.00
2009 0.00 0.00 2.00 67.50 329.50 555.50 772.00 767.50 582.50 0.00 z 0.00 z 0.00 3076.50
2010 0.00 0.00 22.00 153.00 233.00 482.00 708.50 74.50 z 474.50 210.50 20.50 g 0.00 2283.50
2011 0.00 0.00 b 1.50 15.50 233.50 440.00 700.50 814.00 584.50 212.50 0.00 0.00 3002.00
2012 0.00 v 0.00 6.00 152.00 299.50 541.50 859.00 792.64 b 531.00 170.50 42.00 w 0.00 3352.14
Period of Record Statistics
MEAN 0.42 1.19 19.30 112.38 322.11 515.30 729.92 708.78 442.97 167.98 14.97 0.20 3026.47
S.D. 1.63 2.87 22.69 61.63 80.77 73.55 77.88 76.96 93.73 56.34 16.14 0.98 239.13
SKEW 4.60 4.25 2.62 0.52 1.11 0.51 0.27 0.00 -0.22 0.54 1.27 5.00 0.50
MAX 9.50 18.50 116.00 271.55 601.00 686.50 921.50 877.00 643.97 320.00 67.24 5.50 3645.81
MIN 0.00 0.00 0.00 12.50 219.50 404.50 505.50 559.50 237.00 65.00 0.00 0.00 2633.50
NO YRS 58 58 57 54 53 56 58 59 53 52 53 57 37