CHARLESTON, ILLINOIS

Monthly Total Growing Degree Days

(111436)

Base Temperature = 50 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201210
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
1896 0.00 z 6.00 11.37 a 394.00 638.00 676.50 797.50 764.00 447.50 131.50 94.50 5.00 3965.87
1897 15.00 0.00 32.50 123.00 287.00 654.50 848.50 705.00 646.50 387.00 30.00 0.00 3729.00
1898 0.50 9.50 63.50 94.00 434.00 747.50 849.50 795.50 631.00 218.00 32.50 0.00 3875.50
1899 0.00 0.00 10.50 270.50 461.50 752.50 825.00 864.50 517.50 351.50 66.50 5.00 4125.00
1900 2.50 2.00 2.00 215.00 511.00 654.50 0.00 z 913.00 627.00 403.50 57.00 0.00 3387.50
1901 1.00 0.00 31.52 a 0.00 z 382.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 10.50 2.58 a 427.60
1902 0.00 0.00 67.50 126.00 588.50 657.41 a 844.00 688.50 449.00 287.00 157.00 0.00 a 3864.91
1903 0.00 2.00 79.50 158.79 a 562.50 529.00 825.50 718.88 b 498.50 247.00 52.50 0.00 3674.17
1904 0.00 1.50 32.00 80.50 424.00 633.00 751.00 706.50 563.00 209.00 28.50 1.00 3430.00
1905 0.00 0.00 100.00 184.00 481.00 734.48 a 764.00 810.50 589.00 247.00 20.50 0.00 3930.48
1906 24.50 7.50 0.00 a 243.00 472.00 619.00 731.00 821.50 627.00 215.00 19.50 0.00 3780.00
1907 18.00 0.00 184.00 43.00 271.00 547.50 813.00 707.00 471.21 a 165.50 2.50 8.00 3230.71
1908 0.00 0.00 56.00 166.50 476.50 639.00 797.73 a 767.50 625.00 226.50 54.83 a 9.30 a 3818.86
1909 28.00 4.00 5.50 157.50 350.00 696.50 715.50 824.50 447.00 148.50 160.50 12.00 3549.50
1910 0.00 0.00 200.50 190.00 272.50 588.00 778.50 680.97 a 515.00 284.00 10.50 0.00 3519.97
1911 4.00 21.50 33.50 120.50 603.98 a 787.00 828.50 742.50 615.50 207.00 25.00 7.50 3996.48
1912 0.00 0.00 8.50 202.00 484.00 549.83 a 799.00 700.50 538.00 249.07 b 30.52 a 5.17 a 3566.58
1913 4.77 e 3.63 a 40.30 a 154.50 501.17 a 783.62 a 926.00 0.00 z 0.00 z 150.00 f 111.21 a 14.50 2539.69
1914 9.50 0.00 45.50 194.48 a 506.00 865.00 945.50 833.50 509.00 279.00 67.50 3.88 c 4258.86
1915 0.00 12.00 0.00 308.28 a 341.52 a 568.00 525.50 g 543.00 579.00 263.50 c 98.00 0.00 a 2713.29
1916 2.00 1.00 45.50 106.00 486.50 547.50 952.00 869.00 471.00 204.00 76.00 22.00 3782.50
1917 0.00 5.00 58.50 149.50 249.19 e 584.00 787.00 664.50 462.00 112.00 36.00 0.00 3107.69
1918 0.00 7.50 61.45 c 63.46 d 611.70 c 709.00 735.00 909.00 303.00 269.00 33.00 33.14 b 3735.24
1919 0.00 0.00 c 50.50 188.00 336.00 780.50 906.50 741.00 628.50 338.50 18.50 0.00 a 3988.00
1920 0.00 0.00 63.50 72.50 383.50 660.50 778.50 725.50 599.00 361.15 a 32.50 7.00 3683.65
1921 0.50 11.00 156.50 223.39 b 476.00 810.00 951.00 748.00 672.50 213.00 20.50 2.50 4284.89
1922 0.50 12.00 50.00 201.50 513.50 728.50 787.50 786.50 649.50 307.50 68.79 a 0.00 4105.79
1923 0.00 0.00 15.50 137.59 a 355.00 678.50 831.32 a 762.50 516.00 146.50 11.00 15.00 3468.90
1924 0.00 1.00 8.50 211.55 a 217.00 640.00 700.50 773.50 379.50 361.31 b 67.00 1.50 3361.36
1925 0.00 23.50 73.00 308.00 338.50 780.00 808.00 752.50 745.00 113.00 5.50 0.00 3947.00
1926 0.00 0.00 0.00 n 71.00 496.00 547.00 877.50 837.50 595.00 241.50 11.00 0.00 3676.50
1927 0.00 d 8.30 a 56.50 184.14 a 388.50 541.50 776.50 597.00 674.50 335.50 106.50 2.00 3670.93
1928 1.00 0.00 57.50 105.52 a 413.33 a 497.00 844.50 834.00 407.00 f 282.50 37.00 0.00 3072.35
1929 0.00 0.00 138.98 a 222.50 361.00 624.00 868.55 c 714.60 b 515.69 a 195.50 7.00 8.00 3655.83
1930 1.50 64.00 21.50 251.50 469.00 665.50 942.50 837.00 620.50 252.02 d 87.93 a 0.00 4212.95
1931 0.00 0.00 0.00 212.50 335.00 778.00 942.00 786.50 702.00 346.50 200.50 10.50 4313.50
1932 12.00 27.00 13.50 176.50 455.00 753.00 898.00 810.65 a 556.50 248.00 8.00 22.50 3980.65
1933 7.50 3.00 51.50 143.50 511.00 870.00 926.50 760.50 760.50 215.50 55.50 16.50 4321.50
1934 0.00 0.00 30.50 161.00 566.50 922.50 1007.50 797.00 505.50 321.50 69.00 0.00 4381.00
1935 2.07 a 2.50 112.50 116.50 290.50 568.00 915.50 821.50 526.00 249.50 36.00 0.00 3640.57
1936 0.00 3.50 49.60 a 149.50 529.00 719.50 1074.50 966.50 636.50 236.00 25.50 3.00 4393.10
1937 0.00 0.00 15.00 153.00 441.50 651.00 765.50 832.00 469.50 184.50 32.00 0.00 3544.00
1938 0.00 35.00 107.00 252.50 405.50 638.50 833.50 831.00 603.62 a 319.50 93.50 0.00 4119.62
1939 4.50 1.50 71.00 125.50 522.00 728.00 825.50 720.50 684.00 310.50 14.50 3.50 4011.00
1940 0.00 0.00 54.50 137.00 346.50 714.00 844.50 828.00 484.00 329.50 39.00 0.00 3777.00
1941 0.00 0.00 3.50 247.50 551.00 739.00 840.50 815.00 612.00 333.00 50.50 18.00 4210.00
1942 0.00 0.00 83.00 289.50 418.50 701.50 825.50 731.00 524.50 298.50 80.50 3.50 3956.00
1943 0.00 14.00 51.50 140.00 411.00 787.00 872.00 885.00 455.50 235.00 13.50 0.00 3864.50
1944 14.50 10.50 17.00 139.00 598.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 7.50 m 0.00 b 779.50
1945 0.00 9.00 166.00 158.50 280.00 527.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1140.50
1946 0.00 t 1.00 194.50 225.50 328.50 691.50 812.00 628.50 528.00 342.50 43.00 16.00 3811.00
1947 0.00 0.00 6.00 134.00 330.50 580.50 688.00 999.00 561.00 420.00 15.00 0.00 3734.00
1948 0.00 2.50 71.50 261.50 377.00 685.34 a 797.98 b 776.00 578.50 149.32 a 50.50 15.50 b 3765.64
1949 0.00 0.00 70.50 159.11 b 515.24 b 607.50 f 935.34 b 759.50 e 390.50 322.40 a 65.00 16.57 b 3234.16
1950 47.65 d 0.00 b 27.00 85.34 a 520.11 d 678.46 d 722.41 c 674.54 d 294.50 m 351.50 46.80 e 2.00 3155.81
1951 3.50 10.00 22.00 f 147.12 d 0.00 z 495.50 f 802.68 c 610.50 f 436.15 d 289.69 b 12.32 b 25.50 1726.96
1952 13.00 0.00 22.00 175.50 431.79 c 849.00 882.31 e 738.83 d 161.00 u 118.04 e 53.04 b 13.50 3297.00
1953 3.00 3.00 45.00 111.60 e 430.12 c 827.22 c 547.50 l 788.29 c 595.38 d 336.00 66.00 0.50 3206.12
1954 0.00 14.00 a 7.00 267.32 b 276.23 c 802.00 949.00 797.00 660.00 293.00 40.50 0.00 4106.05
1955 6.20 a 1.50 36.00 271.00 458.00 518.00 922.00 845.00 596.54 d 218.07 b 32.50 0.00 3904.81
1956 0.00 2.50 21.50 123.50 460.50 695.00 747.00 744.50 485.00 356.00 77.07 a 14.00 3726.57
1957 0.00 13.50 18.08 a 245.00 395.77 a 671.00 812.00 750.00 451.00 124.00 9.00 1.03 a 3490.38
1958 0.00 b 8.00 0.00 a 124.50 387.00 519.50 722.50 731.00 503.50 212.19 b 84.00 0.00 3292.19
1959 0.00 0.00 40.00 164.48 a 518.00 727.20 e 639.50 f 838.50 550.86 a 200.00 13.50 6.00 3058.54
1960 5.17 a 0.00 30.48 a 255.00 b 372.00 651.50 771.50 832.50 694.00 282.00 45.00 1.50 3940.65
1961 0.00 13.48 a 41.50 108.00 297.50 634.50 810.00 743.00 644.50 271.00 43.93 b 5.00 3612.41
1962 0.00 4.00 24.50 169.00 672.50 710.50 776.50 775.00 490.00 361.00 6.50 2.00 3991.50
1963 0.00 0.00 84.00 262.00 405.00 742.00 786.50 701.00 566.00 503.00 59.00 0.00 4108.50
1964 5.50 0.00 19.50 225.50 569.00 769.00 836.50 781.50 569.50 192.50 154.50 0.00 4123.00
1965 16.00 1.50 3.50 225.00 618.50 672.50 770.00 739.00 572.00 222.50 91.50 21.50 3953.50
1966 0.00 7.50 63.50 140.00 345.50 701.00 960.50 737.00 483.00 162.00 72.50 15.50 3688.00
1967 23.50 0.52 a 101.50 261.50 319.50 721.00 744.00 633.50 470.00 205.00 10.50 0.00 3490.52
1968 0.50 5.50 103.00 187.00 345.00 746.00 821.00 810.00 561.00 235.50 28.50 0.00 3843.00
1969 0.00 0.00 22.00 185.50 480.00 639.50 872.50 745.50 498.50 252.13 a 1.50 0.00 3697.13
1970 0.00 0.00 7.00 237.50 547.50 651.00 820.00 776.00 264.50 s 184.34 c 4.50 26.00 3253.84
1971 0.00 1.00 9.30 a 167.00 376.17 e 800.50 708.50 710.50 597.50 380.02 b 95.50 9.00 h 3845.99
1972 0.00 10.00 42.50 191.00 511.50 610.00 776.50 757.00 582.50 148.50 10.00 0.00 3639.50
1973 1.50 1.00 104.50 166.00 284.00 g 703.00 839.00 794.00 622.50 389.00 49.82 b 4.50 f 3670.32
1974 1.55 a 2.00 129.50 248.50 425.00 563.50 855.50 709.50 333.62 a 209.50 46.00 0.00 3524.17
1975 2.00 0.00 a 29.00 155.00 507.00 710.50 739.00 787.00 408.50 280.03 a 132.41 a 14.50 3764.95
1976 0.00 b 46.50 98.50 229.50 319.00 636.00 808.00 669.00 464.50 137.00 3.00 0.00 3411.00
1977 0.00 a 0.00 96.62 a 306.50 624.00 624.00 882.50 739.00 587.50 130.50 104.00 1.00 4095.62
1978 0.00 0.00 14.00 174.00 371.50 691.50 796.50 719.50 633.00 163.50 84.50 0.00 3648.00
1979 0.00 0.00 67.50 128.00 381.30 a 682.00 738.00 732.00 536.00 243.35 a 35.00 6.50 3549.65
1980 0.00 0.00 0.50 127.00 447.50 650.50 936.00 872.50 578.79 a 193.00 23.79 a 20.50 3850.09
1981 0.00 9.00 52.50 289.50 287.50 729.50 800.00 697.50 461.00 205.00 68.00 0.00 e 3599.50
1982 0.00 0.00 30.00 110.50 582.50 511.00 802.00 674.50 481.00 259.50 92.00 68.00 3611.00
1983 0.00 18.00 65.50 91.50 310.00 671.50 896.50 913.00 578.00 248.00 66.00 0.00 3858.00
1984 0.00 8.50 0.00 103.50 351.00 789.00 756.00 796.00 465.00 346.50 29.00 31.00 3675.50
1985 0.00 7.50 56.00 327.00 492.50 605.50 784.00 669.00 539.00 295.00 63.00 0.00 3838.50
1986 2.00 3.50 105.50 276.00 497.00 738.00 878.50 641.50 632.50 225.00 27.50 0.00 4027.00
1987 0.00 0.00 54.50 193.50 618.50 763.00 827.00 812.50 567.50 103.00 96.00 0.00 4035.50
1988 2.00 0.00 59.50 137.50 496.50 724.00 881.50 890.50 613.00 113.00 30.50 6.50 3954.50
1989 6.00 0.00 78.00 180.50 319.50 650.50 784.00 725.50 429.50 300.50 45.50 0.00 3519.50
1990 15.50 10.00 116.50 175.00 328.50 671.50 756.00 677.50 557.00 185.00 104.00 1.00 3597.50
1991 0.00 2.00 64.50 256.50 611.50 744.00 822.50 786.00 554.50 293.00 46.00 17.00 4197.50
1992 0.00 5.00 89.50 206.50 411.50 607.50 775.00 616.50 479.00 203.00 46.00 3.00 3442.50
1993 0.00 0.00 20.00 123.50 459.50 688.50 880.50 814.00 403.00 168.00 16.50 0.00 3573.50
1994 0.00 a 13.50 31.52 a 208.00 346.50 764.50 771.50 678.00 502.50 258.50 83.00 5.50 3663.02
1995 17.00 6.00 88.00 168.50 381.00 697.00 870.50 927.50 469.50 269.50 14.50 1.50 3910.50
1996 4.00 29.50 8.50 125.00 460.00 701.50 755.50 767.50 459.00 236.00 17.50 3.50 3567.50
1997 21.00 4.00 39.00 89.00 272.00 643.50 815.50 691.00 542.00 259.50 15.00 0.00 3391.50
1998 19.50 7.50 110.00 166.50 565.00 694.00 803.50 812.50 692.50 255.00 47.50 47.50 4221.00
1999 7.75 a 8.50 13.00 205.50 473.00 689.00 931.50 707.50 511.50 232.00 120.50 10.33 a 3910.08
2000 6.00 49.50 73.00 150.00 493.50 655.50 730.00 785.33 a 500.50 309.50 47.00 0.00 3799.83
2001 0.00 a 0.50 0.00 354.50 494.50 625.00 825.00 781.00 484.50 229.00 87.00 22.50 3903.50
2002 4.50 0.00 23.00 249.00 359.50 762.00 920.00 825.50 644.00 178.50 27.50 4.00 3997.50
2003 0.00 0.00 85.50 245.00 395.00 584.00 807.50 786.00 463.00 231.00 105.50 0.00 3702.50
2004 7.00 1.50 74.00 226.50 576.50 652.50 732.00 637.00 561.00 225.00 63.00 10.00 3766.00
2005 11.00 0.00 26.00 211.00 402.50 748.00 851.00 847.00 663.00 234.50 95.50 0.00 4089.50
2006 9.50 1.50 59.00 288.50 410.50 666.00 870.00 788.50 447.50 173.00 61.50 3.50 3779.00
2007 0.00 0.00 226.00 207.50 599.50 729.50 726.50 935.00 629.00 388.00 33.50 0.00 z 4474.50
2008 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 11.50 11.50
2009 0.00 13.50 54.50 r 200.00 446.50 744.44 c 694.29 b 710.50 516.00 94.50 60.00 0.00 3479.74
2010 0.00 0.00 37.50 342.00 526.50 805.50 897.50 895.50 608.00 292.00 62.00 5.50 4472.00
2011 0.00 14.00 a 78.02 a 273.00 e 451.10 b 761.38 a 978.88 e 845.00 492.00 258.33 a 76.03 a 0.00 a 4227.75
2012 2.50 0.00 355.93 d 242.50 673.98 b 722.07 a 1067.00 802.38 a 503.79 a 130.00 j 0.00 z 0.00 z 4370.15
Period of Record Statistics
MEAN 3.67 5.78 57.16 187.74 440.89 684.53 830.19 770.23 545.61 250.69 52.41 6.42 3820.74
S.D. 7.37 10.32 54.18 68.22 103.43 84.77 77.95 79.56 86.06 78.56 38.28 10.52 281.00
SKEW 3.01 3.19 2.23 0.41 0.14 -0.02 0.64 0.12 -0.05 0.29 1.11 2.84 0.08
MAX 47.65 64.00 355.93 394.00 673.98 922.50 1074.50 999.00 760.50 503.00 200.50 68.00 4472.00
MIN 0.00 0.00 0.00 43.00 217.00 497.00 688.00 543.00 303.00 94.50 1.50 0.00 3107.69
NO YRS 114 116 113 115 114 112 109 111 108 111 113 112 94