date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197203
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
1867 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
1868 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
1869 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
1870 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
1871 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
1872 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
1873 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
1874 14.50 0.00 48.50 153.00 560.00 817.00 928.00 893.50 601.50 393.00 84.50 7.00 4500.50
1875 2.00 1.00 61.50 259.00 598.00 818.00 798.00 840.00 585.50 434.50 54.00 3.50 4455.00
1876 2.00 2.50 56.50 323.50 476.00 716.50 886.50 831.00 625.00 323.50 45.50 0.00 4288.50
1877 3.00 3.50 217.50 125.50 428.50 742.50 872.50 867.00 636.00 237.00 22.00 0.00 4155.00
1878 0.00 0.00 118.00 252.00 497.00 703.00 986.50 951.00 638.50 469.50 157.00 17.00 4789.50
1879 39.50 124.50 411.50 298.00 668.50 782.00 1026.00 980.50 752.00 345.00 40.50 0.00 5468.00
1880 1.50 0.00 3.50 142.00 480.50 768.00 826.00 772.50 474.50 207.50 10.00 0.00 3686.00
1881 0.00 18.50 60.50 353.00 546.50 887.00 936.50 850.50 610.50 360.00 9.00 t 0.00 z 4623.00
1882 7.00 11.31 b 163.00 254.50 488.50 778.50 934.00 833.50 590.00 331.50 98.00 7.00 4496.81
1883 1.50 42.00 a 161.50 186.72 a 502.50 365.50 o 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 894.22
1884 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 4.50 4.50
1885 0.00 6.50 66.50 213.50 413.50 704.00 911.00 855.00 614.00 324.00 76.00 17.00 4201.00
1886 0.00 6.50 34.50 161.50 638.50 742.00 988.00 836.50 567.00 328.50 19.00 2.00 4324.00
1887 1.00 18.67 a 148.00 219.00 469.00 806.50 894.50 842.00 658.00 358.00 107.00 0.00 4521.67
1888 17.00 15.00 70.00 322.00 425.50 802.50 933.50 802.50 688.50 350.50 43.00 0.00 a 4470.00
1889 0.00 0.00 97.50 347.00 508.50 727.50 907.50 958.00 630.50 383.00 15.50 85.00 4660.00
1890 27.00 47.00 151.00 255.00 594.50 740.50 924.32 a 843.00 629.00 309.50 70.34 a 4.00 4595.16
1891 0.00 0.00 36.00 220.50 399.00 679.00 904.50 878.00 654.50 346.50 101.90 a 3.00 4222.90
1892 17.00 8.50 68.20 a 248.00 462.50 780.50 922.00 871.62 a 749.00 289.00 36.00 13.50 4465.82
1893 5.50 2.50 64.50 243.50 475.50 853.00 885.00 800.50 593.50 301.00 49.50 6.50 4280.50
1894 0.00 0.00 93.00 288.00 584.50 720.00 895.00 760.00 571.50 381.00 120.00 31.50 4444.50
1895 0.50 12.50 80.00 295.00 455.50 681.50 814.50 814.50 708.50 301.00 20.50 0.50 4184.50
1896 3.00 7.50 112.50 270.50 557.50 871.00 831.50 869.50 634.50 270.00 91.00 6.00 4524.50
1897 0.00 9.00 42.50 243.10 a 524.00 727.50 835.50 822.00 657.00 320.50 101.00 2.00 4284.10
1898 0.00 19.50 31.50 292.50 450.00 724.00 875.00 859.50 632.50 306.00 89.00 0.00 4279.50
1899 0.00 a 1.50 97.50 279.50 489.50 722.00 853.00 890.00 696.50 332.00 84.00 1.50 4447.00
1900 3.50 9.50 144.50 146.50 557.50 833.00 916.00 888.50 614.50 346.50 90.00 1.50 4551.50
1901 1.50 23.50 59.00 239.48 a 487.50 770.50 927.00 893.50 636.00 380.00 95.00 20.50 4533.48
1902 7.50 13.00 18.00 360.52 a 529.50 859.00 848.00 879.00 598.50 364.50 101.00 8.00 4586.52
1903 1.00 0.00 80.50 218.00 441.00 635.50 950.50 913.00 584.50 348.50 143.50 3.00 4319.00
1904 2.00 80.00 112.50 280.50 505.30 a 684.00 897.50 831.00 625.50 283.50 50.50 0.00 4352.30
1905 0.00 2.50 68.50 160.00 435.00 772.50 804.50 858.18 a 630.50 255.00 42.00 0.00 4028.68
1906 0.50 5.00 71.50 220.00 453.00 745.50 771.00 792.50 604.00 282.50 102.32 b 17.50 4065.32
1907 0.00 a 30.00 159.50 250.86 a 294.50 618.50 866.45 a 821.50 604.66 a 337.00 48.50 0.00 4031.47
1908 0.00 15.50 132.00 202.00 348.50 692.00 803.50 805.00 640.00 255.50 49.00 3.50 3946.50
1909 13.00 0.50 26.00 171.00 370.00 772.00 923.00 832.50 573.50 316.00 114.50 0.00 4112.00
1910 8.50 6.00 203.00 250.50 501.00 769.50 934.50 862.50 694.50 327.00 93.50 11.00 4661.50
1911 38.00 5.50 94.50 217.50 512.00 748.00 761.50 841.00 684.00 239.00 14.00 0.00 4155.00
1912 1.50 3.50 28.50 109.00 478.50 671.50 872.50 843.50 542.00 285.00 45.50 0.00 3881.00
1913 0.00 0.00 49.50 244.50 577.00 683.50 920.50 885.00 518.00 254.00 105.00 0.00 4237.00
1914 17.00 5.00 86.00 263.00 504.00 808.50 836.00 832.00 690.00 291.50 111.00 0.00 4444.00
1915 0.00 3.50 46.50 232.50 390.00 721.50 855.00 787.50 587.50 370.50 125.50 13.00 4133.00
1916 0.50 21.50 174.50 215.50 487.00 785.50 892.50 829.00 625.00 329.00 88.50 17.00 4465.50
1917 0.00 12.50 58.00 219.50 295.50 782.50 977.00 859.00 676.00 383.00 168.50 25.00 4456.50
1918 11.50 36.50 136.00 172.00 486.50 849.31 a 908.00 863.00 611.50 389.50 63.00 5.00 4531.81
1919 0.00 0.00 62.00 a 264.50 495.50 714.31 a 863.50 901.00 643.00 226.00 65.50 12.00 4247.31
1920 24.00 17.09 a 45.50 128.00 504.00 708.50 890.00 776.50 612.93 a 295.00 49.50 1.00 4052.02
1921 11.00 47.00 143.12 a 157.50 499.62 a 686.50 840.00 806.50 705.00 406.50 123.50 51.50 4477.73
1922 1.00 30.00 67.50 165.00 494.00 790.00 933.00 952.00 715.00 373.50 34.00 0.50 4555.50
1923 9.00 2.50 13.00 176.50 492.00 757.00 920.00 799.50 556.50 208.50 29.50 0.50 3964.50
1924 0.00 18.00 22.00 193.00 498.00 859.00 861.50 868.50 615.00 349.50 95.00 0.00 4379.50
1925 0.00 6.50 157.58 a 320.00 595.50 775.50 922.50 797.73 a 640.50 297.50 27.50 2.00 4542.82
1926 0.00 21.00 50.63 a 198.50 434.00 763.50 842.68 a 895.00 696.50 405.00 59.50 21.00 4387.32
1927 23.50 28.50 82.00 293.00 575.50 726.00 940.50 828.00 619.50 351.00 123.50 0.00 4591.00
1928 6.00 8.80 a 121.00 209.00 500.50 747.41 a 922.50 785.50 645.00 396.50 47.50 2.00 4391.72
1929 0.00 0.00 59.50 219.00 441.00 784.50 894.00 830.28 a 617.50 342.00 14.00 16.50 4218.28
1930 0.00 53.50 39.00 372.00 382.50 813.00 879.00 854.50 611.00 325.50 62.50 0.00 4392.50
1931 0.00 2.50 48.50 235.50 465.00 822.50 935.50 838.00 698.50 397.50 103.50 0.50 4547.50
1932 0.00 a 38.00 46.50 258.00 486.00 702.00 917.00 873.50 620.50 250.00 69.00 0.00 4260.50
1933 0.00 5.50 114.00 141.50 418.50 784.00 947.00 862.50 765.00 424.50 87.00 29.50 4579.00
1934 2.50 51.00 160.00 337.00 651.50 803.50 993.00 936.50 609.50 444.00 134.50 3.00 5126.00
1935 22.00 23.00 97.00 213.50 355.00 784.00 948.50 863.00 645.00 379.00 46.50 0.00 4376.50
1936 0.00 9.00 89.50 315.00 590.50 857.50 933.00 923.50 603.00 314.50 56.50 6.00 4698.00
1937 0.00 5.19 a 40.50 252.00 580.50 741.21 a 924.50 969.00 716.00 393.00 101.00 5.50 4728.39
1938 3.00 33.50 101.00 299.50 485.00 793.00 896.50 938.50 651.50 413.00 22.00 6.50 4643.00
1939 0.00 0.00 120.50 289.66 a 561.00 825.00 911.50 860.50 706.00 317.00 67.50 72.50 4731.16
1940 2.00 29.00 132.00 237.00 558.50 770.50 948.00 841.00 707.50 423.00 75.00 9.00 4732.50
1941 1.50 16.00 52.00 133.00 527.00 650.50 895.00 874.50 666.00 336.50 94.50 12.50 4259.00
1942 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
1943 15.50 e 43.17 d 87.26 d 418.27 d 426.50 g 747.12 d 971.13 e 963.38 e 664.80 e 328.48 e 69.60 e 0.00 z 4308.71
1944 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
1945 0.00 12.00 41.00 185.00 541.00 693.00 913.00 926.00 666.00 354.50 71.50 0.50 4403.50
1946 0.00 23.00 106.50 446.50 490.00 901.50 967.00 870.50 719.00 301.00 24.00 29.50 4878.50
1947 0.00 10.00 84.00 195.00 571.50 705.00 c 1004.00 915.00 756.50 455.00 23.79 a 2.67 b 4722.47
1948 4.28 b 15.54 a 36.50 f 337.50 560.07 a 741.96 b 526.50 n 0.00 z 724.29 b 234.00 h 36.50 8.00 2428.13
1949 1.50 8.30 a 42.00 p 292.76 a 550.00 538.50 j 917.50 873.17 a 428.00 l 303.50 119.50 9.30 a 3075.52
1950 16.00 21.00 58.00 299.50 366.00 g 656.50 i 850.00 825.38 c 571.03 a 572.00 137.00 31.00 3380.91
1951 8.00 41.50 73.50 243.50 588.00 758.50 1080.72 b 876.50 725.00 374.50 22.50 6.50 4798.72
1952 5.00 3.00 33.00 230.00 511.00 888.50 921.50 949.00 713.50 462.00 70.00 0.00 4786.50
1953 22.98 b 13.50 27.00 m 230.17 a 395.77 a 852.00 983.50 893.83 a 747.86 b 373.50 116.00 4.50 4633.61
1954 10.33 a 50.00 57.19 b 81.00 w 420.00 i 849.00 1025.21 c 904.50 786.50 484.50 138.50 27.50 4333.24
1955 1.50 7.00 91.00 241.00 481.00 705.00 908.00 850.50 722.50 422.50 72.00 32.00 4534.00
1956 11.50 9.00 113.50 206.50 634.00 924.50 927.00 826.50 790.50 446.50 47.50 0.50 4937.50
1957 5.00 68.00 57.50 187.00 371.00 757.50 971.50 830.50 650.00 317.50 21.50 7.50 4244.50
1958 0.50 44.50 21.50 187.00 619.00 884.50 977.00 927.00 670.00 357.00 105.00 41.00 4834.00
1959 2.50 0.00 47.50 261.00 502.50 838.00 946.50 872.50 678.00 325.50 55.00 2.00 4531.00
1960 1.00 0.00 124.00 292.50 476.00 821.00 913.95 c 903.00 709.00 299.00 72.50 6.00 4617.95
1961 0.00 7.00 73.50 205.00 550.00 831.00 898.00 803.00 510.52 a 297.50 19.00 5.50 4200.02
1962 0.00 31.00 38.50 313.00 562.00 762.00 875.50 923.50 641.00 370.50 96.50 2.00 4615.50
1963 2.00 41.50 91.50 262.50 586.50 757.50 981.50 818.00 696.50 486.00 79.00 0.00 4802.50
1964 0.00 0.00 24.50 178.00 505.00 736.50 941.00 848.50 644.00 420.50 61.50 2.50 4362.00
1965 5.50 3.00 33.50 252.00 445.00 669.00 910.00 814.00 590.50 383.00 121.00 12.50 4239.00
1966 0.00 a 0.00 130.41 b 238.45 a 564.00 714.50 984.50 803.50 298.50 p 362.50 105.00 8.27 a 3911.13
1967 5.50 13.00 177.50 302.14 b 485.00 711.00 920.70 a 747.00 579.31 a 390.50 112.00 0.00 4443.65
1968 0.00 a 19.00 68.50 144.00 446.00 804.50 852.50 741.00 579.00 388.00 58.50 0.00 4101.00
1969 4.00 1.00 55.00 293.00 549.00 717.50 978.50 932.50 646.00 280.00 46.03 a 15.50 4518.03
1970 9.50 17.50 28.50 156.00 565.00 697.50 926.00 884.50 602.50 202.02 a 50.50 11.00 4150.52
1971 26.00 23.00 151.00 194.50 475.85 a 783.00 906.00 777.21 c 599.00 0.00 z 62.78 c 6.41 b 4004.76
1972 5.68 a 49.50 169.00 k 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 55.18
Period of Record Statistics
MEAN 5.39 17.21 86.69 240.62 499.58 765.29 910.15 858.22 645.51 346.36 73.00 9.25 4433.40
S.D. 8.43 20.36 57.86 65.80 74.22 63.74 56.37 52.03 61.10 66.93 37.13 14.59 280.70
SKEW 2.08 2.24 2.20 0.43 -0.31 0.23 -0.07 0.20 0.08 0.33 0.26 2.93 0.42
MAX 39.50 124.50 411.50 446.50 668.50 924.50 1080.72 980.50 790.50 572.00 168.50 85.00 5468.00
MIN 0.00 0.00 3.50 109.00 294.50 618.50 761.50 741.00 474.50 202.02 10.00 0.00 3686.00
NO YRS 96 96 92 94 92 92 93 93 92 92 93 93 85