date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 50 F

File last updated on Apr 6, 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
1893 0.00 m 0.00 0.00 2.50 192.50 611.50 681.50 548.50 365.56 c 83.50 16.50 0.00 b 2502.06
1894 0.00 0.00 a 9.00 110.69 a 268.50 650.50 750.50 614.00 455.89 b 82.15 a 0.00 c 0.00 2941.23
1895 0.00 0.00 0.00 125.50 282.62 a 480.00 d 630.50 608.50 448.89 c 72.50 7.00 0.00 2655.51
1896 0.00 0.00 0.00 106.03 a 366.50 482.50 588.00 610.50 250.00 32.00 0.00 0.00 2435.53
1897 0.00 0.00 0.00 63.00 263.00 403.50 679.00 472.00 536.00 157.50 5.50 0.00 2579.50
1898 0.00 0.00 4.00 57.00 216.50 0.00 z 638.50 570.00 386.00 50.50 1.00 0.00 1923.50
1899 0.00 0.00 0.00 96.50 276.50 527.50 699.50 623.50 218.50 69.00 0.00 0.00 2511.00
1900 0.00 a 0.00 0.00 134.50 325.50 506.50 419.00 i 0.00 z 156.50 q 0.00 z 0.00 z 0.00 966.50
1901 0.00 r 0.00 0.00 115.50 319.00 531.00 869.00 682.00 273.50 100.50 0.00 0.00 2890.50
1902 0.00 0.00 0.00 a 30.00 260.40 a 376.50 622.50 497.07 b 207.50 47.50 5.00 c 0.00 b 2046.47
1903 0.00 0.00 g 0.00 19.50 267.12 a 392.00 558.00 b 441.75 a 266.50 75.00 1.20 e 0.00 c 2021.07
1904 0.00 m 0.00 t 0.00 e 15.00 a 278.45 c 441.21 a 554.00 549.45 b 300.50 81.78 b 10.50 0.00 h 2230.88
1905 0.00 g 0.00 v 9.50 53.50 165.50 443.00 593.81 b 646.50 429.00 116.50 0.00 0.00 2457.31
1906 0.00 0.00 0.00 113.28 a 279.00 465.50 599.50 645.50 431.50 109.50 3.00 0.00 h 2646.78
1907 0.00 e 0.00 11.88 a 0.00 88.00 457.50 636.00 607.00 307.50 54.50 0.00 0.00 2162.38
1908 0.00 0.00 0.00 134.00 234.00 418.00 670.93 c 574.00 505.86 a 129.50 6.50 0.00 2672.79
1909 0.00 0.00 0.00 9.50 247.00 497.00 628.00 749.00 339.50 132.55 b 27.50 0.00 2630.05
1910 0.00 a 0.00 71.50 190.00 180.00 555.00 696.00 564.50 318.75 b 249.50 0.00 0.00 2825.25
1911 0.00 b 0.00 22.50 76.55 a 414.00 675.00 672.00 504.61 d 325.50 55.50 0.00 0.00 2745.66
1912 0.00 0.00 a 0.00 79.00 278.50 434.00 649.00 529.58 a 313.00 125.07 b 4.00 0.00 2412.15
1913 0.00 b 0.00 0.00 114.00 202.00 605.00 602.50 703.18 a 396.50 90.93 a 6.00 0.00 a 2720.12
1914 0.00 0.00 0.00 83.50 353.50 555.50 778.50 564.50 363.50 251.10 a 22.50 0.00 a 2972.60
1915 0.00 0.00 0.00 243.00 164.50 396.50 543.00 509.50 341.00 129.50 14.50 0.00 2341.50
1916 0.00 a 0.00 0.00 29.00 251.00 388.00 882.00 635.50 330.50 83.00 8.50 0.00 a 2607.50
1917 0.00 0.00 0.00 8.50 198.00 419.00 733.00 550.50 287.50 22.00 2.00 0.00 2220.50
1918 0.00 0.00 14.00 23.00 336.50 526.00 659.00 644.50 202.00 161.50 10.00 0.00 2576.50
1919 0.00 0.00 0.50 27.50 275.50 572.00 740.00 621.50 423.50 64.50 0.00 0.00 a 2725.00
1920 0.00 0.00 49.60 a 1.00 278.50 523.00 641.50 595.50 446.50 234.50 0.00 0.00 2770.10
1921 0.00 0.00 15.00 114.00 346.00 715.50 790.00 642.00 371.00 85.00 0.00 0.00 3078.50
1922 0.00 0.00 0.00 39.44 c 368.50 612.50 621.50 746.00 432.00 138.50 1.50 0.00 d 2959.94
1923 0.00 0.00 0.00 53.00 295.53 a 629.00 816.00 576.00 393.50 97.00 0.00 0.00 b 2860.03
1924 0.00 0.00 0.00 52.00 93.00 420.00 608.00 569.50 287.00 211.50 1.00 0.00 2242.00
1925 0.00 0.00 9.00 110.50 226.50 523.00 647.00 705.00 489.00 2.50 0.00 0.00 2712.50
1926 0.00 0.00 0.00 90.50 409.00 456.00 734.50 574.00 254.00 98.00 0.00 0.00 2616.00
1927 0.00 0.00 9.00 66.00 149.50 475.00 572.50 570.00 487.50 156.50 0.00 0.00 2486.00
1928 0.00 a 0.00 a 0.00 z 43.00 353.40 a 381.00 726.50 0.00 z 0.00 z 136.50 0.00 0.00 1640.40
1929 0.00 0.00 0.00 48.50 241.50 503.50 721.50 675.05 b 229.00 81.00 0.00 0.00 2500.05
1930 0.00 0.00 1.50 76.50 238.50 479.00 725.50 695.50 278.50 137.50 3.50 0.00 2636.00
1931 0.00 0.00 0.00 126.72 a 247.48 a 712.00 795.67 a 619.50 546.00 148.50 24.50 0.00 a 3220.37
1932 0.00 0.00 0.00 55.50 302.00 598.00 700.00 633.43 a 298.00 73.50 0.00 0.00 2660.43
1933 0.00 0.00 0.00 53.00 261.00 785.00 811.50 585.00 497.00 82.50 3.00 0.00 3078.00
1934 0.00 0.00 0.00 87.00 581.00 664.00 788.50 612.50 222.50 188.50 9.00 0.00 3153.00
1935 0.00 0.00 3.50 40.50 163.50 420.50 876.00 692.50 377.07 a 82.50 0.00 0.00 2656.07
1936 0.00 0.00 0.00 35.00 424.50 479.50 919.67 a 689.50 429.50 79.50 0.00 0.00 3057.17
1937 0.00 0.00 0.00 25.00 316.00 462.50 766.50 834.50 376.00 74.50 1.00 0.00 2856.00
1938 0.00 0.00 8.00 100.50 180.00 513.50 681.50 743.50 412.00 243.00 22.00 0.00 2904.00
1939 0.00 0.00 41.50 90.50 447.43 a 559.50 741.50 648.00 469.00 99.50 0.00 1.50 3098.43
1940 0.00 0.00 0.00 11.50 239.73 a 505.50 743.50 543.00 439.50 162.50 1.00 0.00 2646.23
1941 0.00 0.00 0.00 110.00 400.00 495.50 695.50 633.00 367.50 84.00 2.00 2.50 2790.00
1942 0.00 0.00 0.00 159.50 199.50 436.50 624.00 591.00 273.50 143.50 4.00 0.00 2431.50
1943 0.00 0.00 18.00 49.50 191.00 561.00 739.50 677.50 261.00 157.50 0.00 z 0.00 2655.00
1944 0.00 0.00 0.00 11.50 381.50 562.50 649.50 617.00 315.50 100.50 22.50 0.00 2660.50
1945 0.00 a 0.00 26.50 42.50 135.50 353.00 612.50 599.50 293.50 91.00 0.00 0.00 2154.00
1946 0.00 0.00 31.00 134.00 198.00 512.50 687.50 557.00 282.00 76.50 0.00 0.00 2478.50
1947 0.00 0.00 3.50 33.00 148.50 393.50 668.50 790.00 380.50 249.50 0.00 0.00 b 2667.00
1948 0.00 0.00 1.50 99.50 255.00 463.00 732.50 649.45 a 473.79 a 75.00 2.50 0.00 2752.24
1949 0.00 0.00 0.00 74.50 355.00 575.50 726.00 747.00 238.00 118.50 1.50 0.00 2836.00
1950 0.00 0.00 0.00 7.76 a 201.50 540.50 576.00 497.00 344.50 125.00 11.50 0.00 2303.76
1951 0.00 0.00 0.00 50.50 337.38 a 376.50 615.00 532.50 203.50 114.00 0.00 a 0.00 2229.38
1952 0.00 0.00 b 0.00 152.00 264.00 546.00 692.00 581.00 374.50 45.00 6.00 0.00 2660.50
1953 0.00 0.00 0.00 21.50 264.50 535.50 651.00 659.00 325.50 235.00 20.00 0.00 2712.00
1954 0.00 0.00 0.00 48.50 194.78 a 533.00 693.50 576.50 292.00 59.00 4.00 0.00 2401.28
1955 0.00 0.00 3.50 142.00 419.50 479.00 792.00 731.00 326.00 135.50 0.00 0.00 3028.50
1956 0.00 0.00 0.00 8.00 273.00 651.00 561.50 581.00 240.50 192.50 6.00 0.00 2513.50
1957 0.00 0.00 0.00 101.00 185.50 447.00 784.50 558.50 237.00 100.00 3.00 0.00 2416.50
1958 0.00 0.00 0.00 53.50 312.00 318.50 555.00 629.50 354.00 138.00 0.00 0.00 2360.50
1959 0.00 0.00 0.00 43.50 294.50 612.00 677.50 716.50 335.50 26.50 0.00 0.00 2706.00
1960 0.00 0.00 0.00 69.50 247.00 437.00 671.50 511.00 f 356.00 116.50 0.00 0.00 1897.50
1961 0.00 a 0.00 5.00 17.00 183.00 557.50 606.00 689.00 308.79 a 110.50 0.00 0.00 a 2476.79
1962 0.00 a 0.00 0.00 73.00 318.00 494.50 577.00 619.00 231.00 116.00 k 0.00 1.50 2314.00
1963 0.00 0.00 30.00 92.00 254.00 585.00 a 673.00 623.50 381.50 280.00 0.00 0.00 2919.00
1964 0.00 0.00 0.00 65.50 324.50 557.00 754.00 505.00 251.00 89.00 16.00 0.00 2562.00
1965 0.00 0.00 0.00 40.00 323.50 544.50 689.00 0.00 z 120.50 127.62 a 5.50 0.00 1850.62
1966 0.00 0.00 9.82 a 15.00 213.50 522.50 823.00 528.00 299.00 82.00 0.00 0.00 2492.82
1967 0.00 0.00 26.50 53.00 203.50 490.50 608.12 a 521.00 308.00 105.50 0.00 0.00 2316.12
1968 0.00 0.00 44.50 85.50 151.00 561.50 0.00 z 643.50 330.50 97.00 1.00 0.00 1914.50
1969 0.00 0.00 a 0.00 47.00 319.50 306.00 646.00 712.50 343.00 66.00 3.50 0.00 2443.50
1970 0.00 0.00 0.00 83.00 321.00 614.00 699.00 608.50 362.50 111.00 0.00 0.00 2799.00
1971 0.00 0.00 3.00 88.00 216.50 610.50 485.00 552.50 313.50 132.50 0.00 0.00 2401.50
1972 0.00 0.00 0.00 19.14 a 336.50 500.00 612.50 609.50 262.50 57.50 0.00 0.00 z 2397.64
1973 0.00 0.00 4.00 48.50 233.50 561.00 647.00 692.00 303.00 211.00 2.50 0.00 2702.50
1974 0.00 0.00 0.00 66.00 187.50 515.00 793.50 490.00 261.50 135.50 0.00 0.00 2449.00
1975 0.00 0.00 0.00 4.00 361.00 530.00 808.00 684.50 253.50 158.50 23.50 0.00 2823.00
1976 0.00 0.00 8.00 116.50 287.00 670.50 804.50 768.00 354.00 88.50 0.00 0.00 3097.00
1977 0.00 0.00 10.16 b 201.50 516.00 561.50 749.00 486.00 341.50 44.50 6.67 c 0.00 c 2916.82
1978 0.00 0.00 c 0.00 28.50 389.50 550.00 686.50 729.00 509.50 118.00 15.00 0.00 3026.00
1979 0.00 0.00 0.00 i 43.00 210.50 f 575.50 768.00 585.56 d 344.00 g 45.93 d 0.50 0.00 b 2018.48
1980 0.00 0.00 0.00 d 184.00 431.00 611.50 808.00 699.00 384.50 118.50 0.50 0.00 3237.00
1981 0.00 1.50 6.00 125.00 281.50 538.50 745.50 656.00 362.00 60.50 16.00 0.00 2792.50
1982 0.00 0.00 0.00 88.00 370.50 422.50 776.50 683.00 321.00 75.00 0.00 0.00 a 2736.50
1983 0.00 0.00 0.00 22.00 127.50 476.50 809.00 779.50 344.00 49.00 5.17 a 0.00 2612.67
1984 0.00 0.00 0.00 13.00 186.50 542.00 668.50 697.50 221.50 145.50 0.00 0.00 2474.50
1985 0.00 0.00 b 1.50 187.50 462.50 490.00 713.50 527.00 302.07 a 42.00 0.00 0.00 2726.07
1986 0.00 0.00 33.00 55.00 344.00 654.50 765.00 576.00 335.50 91.50 0.00 0.00 2854.50
1987 0.00 0.00 7.50 201.50 469.00 678.50 812.50 605.50 383.00 47.00 11.00 0.00 3215.50
1988 0.00 0.00 0.00 69.00 484.00 739.00 841.00 772.42 a 413.00 64.50 0.00 a 0.00 3382.92
1989 0.00 0.00 0.00 85.00 324.50 537.50 790.00 647.00 344.50 143.50 0.00 0.00 2872.00
1990 0.00 0.00 7.50 148.50 235.00 559.50 628.50 613.50 0.00 z 95.00 25.00 0.00 2312.50
1991 0.00 0.00 0.00 101.00 417.50 666.00 669.50 656.00 332.00 99.50 0.00 0.00 2941.50
1992 0.00 0.00 0.00 61.00 356.00 443.50 454.00 471.50 311.50 121.00 0.00 0.00 2218.50
1993 0.00 0.00 0.00 22.50 240.00 429.50 587.50 603.00 202.50 83.00 0.00 0.00 2168.00
1994 0.00 0.00 0.00 39.00 365.00 548.50 554.50 494.50 366.00 93.00 6.50 0.00 2467.00
1995 0.00 0.00 6.00 0.50 154.50 588.50 660.50 691.00 277.50 58.50 0.00 0.00 2437.00
1996 0.00 0.00 0.00 13.50 186.50 550.50 577.00 587.00 287.50 93.00 0.00 0.00 2295.00
1997 0.00 0.00 0.00 22.50 149.50 610.00 631.50 563.50 400.50 178.00 0.00 0.00 2555.50
1998 0.00 0.00 6.00 52.50 419.00 417.00 662.50 659.00 457.50 76.50 0.00 0.00 2750.00
1999 0.00 0.00 3.00 38.28 a 285.00 521.00 734.50 593.50 277.00 58.50 9.00 0.00 2519.78
2000 0.00 a 0.00 21.18 a 52.50 266.50 441.00 653.00 616.50 337.00 103.50 16.00 0.00 2507.18
2001 0.00 0.00 0.00 72.00 265.00 517.50 704.00 646.50 269.00 54.00 34.00 0.00 2562.00
2002 0.00 0.00 a 0.00 44.50 155.50 605.00 775.00 a 568.50 365.00 33.00 0.00 0.00 2546.50
2003 0.00 0.00 0.00 56.50 151.50 451.50 630.00 656.50 307.00 125.00 0.00 0.00 2378.00
2004 0.00 b 0.00 0.00 49.00 159.00 375.00 575.50 392.50 438.00 79.50 0.00 0.00 2068.50
2005 0.00 0.00 0.00 87.50 163.50 565.00 659.50 555.00 390.50 94.00 0.50 0.00 z 2515.50
2006 0.00 z 0.00 0.00 0.00 z 293.00 516.00 0.00 z 582.50 215.50 80.50 7.00 0.00 1694.50
2007 0.00 0.00 12.83 b 93.00 377.50 579.00 659.50 540.50 373.00 115.50 0.00 0.00 2750.83
2008 0.00 0.00 a 0.00 18.00 164.50 445.00 649.00 585.50 313.50 39.00 19.00 0.00 2233.50
2009 0.00 a 0.00 a 0.00 34.00 221.50 432.00 489.50 501.50 416.00 1.00 1.50 0.00 2097.00
2010 0.00 0.00 9.00 104.00 282.50 473.50 654.50 701.50 245.50 119.00 5.50 0.00 2595.00
2011 0.00 0.00 0.00 11.00 209.00 494.00 807.50 616.00 305.00 171.50 0.00 0.00 2614.00
2012 0.00 0.00 82.50 63.50 361.50 590.00 836.50 561.00 288.50 41.00 0.00 0.00 2824.50
2013 0.00 0.00 0.00 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
Period of Record Statistics
MEAN 0.00 0.01 5.89 68.84 276.49 519.93 688.89 614.55 337.54 106.21 4.50 0.05 2642.89
S.D. 0.00 0.14 13.46 49.58 94.35 89.79 90.12 80.08 81.29 54.78 7.36 0.30 283.48
SKEW 0.00 10.72 3.42 0.99 0.51 0.24 0.08 0.12 0.29 0.96 1.91 6.62 0.16
MAX 0.00 1.50 82.50 243.00 581.00 785.00 919.67 834.50 546.00 280.00 34.00 2.50 3382.92
MIN 0.00 0.00 0.00 0.00 88.00 306.00 454.00 392.50 120.50 1.00 0.00 0.00 2046.47
NO YRS 116 118 119 119 119 119 117 116 116 118 118 116 101