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
1877 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 10.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1878 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
1879 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
1880 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
1881 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
1882 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
1883 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
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 0.00 z 0.00
1885 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
1886 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
1887 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
1888 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
1889 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
1890 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
1891 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
1892 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
1893 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
1894 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
1895 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
1896 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
1897 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
1898 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 x 0.00
1899 0.00 p 0.00 0.00 87.00 199.00 463.00 597.50 31.50 z 5.00 x 102.50 3.50 0.00 1452.50
1900 0.00 0.00 0.00 110.89 b 355.00 550.50 595.50 749.50 305.50 179.00 2.50 0.00 2848.39
1901 0.00 0.00 0.00 99.00 276.00 448.50 880.92 a 657.00 259.00 82.00 6.00 0.00 2708.42
1902 0.00 0.00 3.00 30.50 253.17 a 400.50 662.50 533.00 119.00 39.50 0.00 0.00 2041.17
1903 0.00 0.00 0.00 8.40 e 235.50 333.50 535.00 473.00 213.50 40.50 7.50 0.00 1846.90
1904 0.00 j 0.00 0.00 a 6.50 185.48 a 366.50 531.00 453.00 0.00 z 0.00 z 0.00 z 0.00 z 1542.48
1905 0.00 z 0.00 c 9.00 26.00 o 140.02 a 484.82 b 544.00 634.00 410.19 d 67.17 a 0.00 a 0.00 2289.20
1906 0.00 0.00 0.00 b 105.00 241.50 297.41 a 700.50 629.41 c 353.28 a 59.33 b 3.10 a 0.00 2389.53
1907 0.00 a 0.00 10.50 24.31 a 64.00 446.50 651.00 a 608.00 321.50 49.60 a 0.00 e 0.00 2175.41
1908 0.00 0.00 0.00 a 132.93 a 212.35 a 354.00 575.50 478.50 504.50 0.00 z 2.50 0.00 2260.28
1909 0.00 0.00 0.00 9.00 210.50 431.50 544.50 718.50 289.00 115.22 a 21.50 q 0.00 z 2318.22
1910 0.00 0.00 79.00 160.50 100.50 457.50 636.00 474.50 301.00 229.50 0.00 0.00 2438.50
1911 0.00 0.00 4.50 39.00 361.50 654.00 605.50 462.00 316.50 23.00 0.00 0.00 2466.00
1912 0.00 0.00 0.00 35.50 208.50 360.50 654.50 547.00 294.50 100.00 2.50 0.00 2203.00
1913 0.00 0.00 0.00 89.50 184.00 546.00 618.50 696.50 403.50 157.00 4.00 0.00 2699.00
1914 0.00 0.00 0.00 w 74.50 285.00 525.00 734.50 591.50 360.50 193.00 18.00 0.00 2782.00
1915 0.00 0.00 0.00 213.00 156.00 343.50 488.50 330.50 k 188.50 f 105.00 8.00 0.00 1314.00
1916 0.00 0.00 0.00 16.00 234.50 316.50 833.50 610.00 343.50 82.50 18.00 0.00 2454.50
1917 0.00 c 0.00 a 0.00 11.50 155.50 362.59 a 672.18 a 513.57 a 193.50 l 23.25 a 7.50 0.00 1746.09
1918 0.00 c 0.00 20.67 a 9.81 d 384.73 c 547.50 506.00 i 688.09 c 158.00 116.50 2.00 0.00 g 1927.30
1919 0.00 0.00 a 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
1920 0.00 z 0.00 9.09 b 3.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 195.00 g 0.00 0.00 12.09
1921 0.00 0.00 17.50 122.00 335.50 719.00 810.50 630.50 390.50 109.00 0.00 0.00 3134.50
1922 0.00 a 0.00 0.00 36.00 309.50 592.00 612.00 753.00 494.48 a 187.00 0.00 0.00 2983.98
1923 0.00 a 0.00 a 0.00 63.50 188.50 545.50 811.00 581.50 418.00 83.00 3.00 0.00 2694.00
1924 0.00 0.00 o 0.00 75.00 126.50 456.72 a 615.50 651.00 251.50 189.00 0.00 a 0.00 2365.22
1925 0.00 0.00 b 5.50 162.50 221.00 498.00 680.50 704.39 d 511.00 3.50 0.00 0.00 2786.39
1926 0.00 0.00 4.00 90.52 a 434.00 427.00 725.50 664.50 309.50 92.00 0.00 0.00 2747.02
1927 0.00 0.00 0.00 59.00 169.00 442.00 619.50 552.00 449.00 158.50 0.00 0.00 2449.00
1928 0.00 0.00 29.50 28.00 332.00 352.50 694.50 650.50 298.00 157.00 0.00 0.00 2542.00
1929 0.00 0.00 0.00 55.50 213.00 428.50 713.50 689.50 247.00 117.50 0.00 0.00 2464.50
1930 0.00 1.00 7.00 87.50 245.50 508.00 845.50 753.50 366.50 142.00 7.50 0.00 2964.00
1931 0.00 0.00 0.00 a 136.50 244.00 678.50 804.50 675.00 574.50 168.50 21.50 0.00 3303.00
1932 0.00 0.00 b 0.00 37.50 272.00 576.00 799.50 681.50 348.00 109.50 1.50 0.00 2825.50
1933 0.00 0.00 0.50 78.00 253.50 817.50 828.00 619.00 517.00 104.50 18.50 0.00 3236.50
1934 0.00 0.00 1.00 73.00 617.50 666.00 805.00 603.00 232.50 202.00 6.50 0.00 3206.50
1935 0.00 0.00 15.00 55.34 a 158.00 454.00 945.00 746.00 443.00 107.50 0.00 0.00 2923.84
1936 0.00 0.00 0.00 41.00 430.50 535.50 1036.00 799.50 496.00 75.12 e 0.00 0.00 3413.62
1937 0.00 0.00 a 0.00 b 35.00 342.50 476.00 813.00 857.50 412.00 77.00 7.50 0.00 3020.50
1938 0.00 0.00 10.00 86.00 219.50 539.50 782.00 792.00 471.21 a 242.00 28.00 0.00 3170.21
1939 0.00 a 0.00 48.00 78.00 471.00 601.00 802.00 661.00 502.50 94.50 6.43 b 0.00 3264.43
1940 0.00 a 0.00 0.00 a 24.50 254.50 573.00 828.00 594.00 489.50 192.50 0.50 0.00 2956.50
1941 0.00 0.00 0.00 a 85.50 438.00 538.00 777.07 a 740.00 423.75 b 112.00 3.50 0.00 3117.82
1942 0.00 a 0.00 0.00 141.50 191.50 444.31 a 686.43 c 618.45 a 254.42 d 156.00 0.00 0.00 2492.61
1943 0.00 0.00 22.00 47.00 169.47 a 562.50 736.50 680.50 191.00 124.00 0.00 c 0.00 2532.97
1944 0.00 0.00 0.00 8.00 392.00 532.50 627.50 591.00 302.00 59.50 14.50 0.00 2527.00
1945 0.00 a 0.00 21.50 21.00 128.50 330.50 595.50 619.00 298.50 82.00 0.00 0.00 2096.50
1946 0.00 0.00 34.50 140.69 a 180.50 507.50 676.00 577.50 295.00 63.50 0.00 0.00 2475.19
1947 0.00 0.00 1.00 18.50 142.50 382.50 652.50 828.00 396.50 217.00 0.00 0.00 2638.50
1948 0.00 0.00 0.50 91.50 226.50 429.50 679.50 635.00 473.00 51.00 7.24 a 0.00 2593.74
1949 0.00 0.00 0.00 60.50 314.00 545.50 728.00 696.00 197.00 84.00 6.50 0.00 2631.50
1950 0.00 0.00 a 0.00 10.50 165.50 461.38 a 534.00 466.00 313.00 121.00 10.71 b 0.00 a 2082.09
1951 0.00 0.00 0.00 41.00 251.50 338.00 550.50 526.48 a 172.76 a 103.50 0.00 0.00 1983.74
1952 0.00 0.00 0.00 101.50 202.50 518.28 a 642.50 554.90 a 338.00 31.00 1.50 0.00 2390.18
1953 0.00 0.00 0.00 17.00 210.50 528.00 631.37 a 640.50 281.00 191.50 9.50 0.00 2509.37
1954 0.00 0.00 0.00 73.50 142.08 a 515.00 734.50 581.50 297.00 39.50 2.00 0.00 2385.08
1955 0.00 0.00 0.00 92.00 338.50 419.50 824.50 779.50 340.00 116.77 a 0.00 0.00 2910.77
1956 0.00 a 0.00 a 0.00 2.50 284.17 a 669.83 a 586.00 592.00 274.50 179.00 0.00 0.00 2587.99
1957 0.00 0.00 0.00 80.00 153.00 419.50 795.15 a 578.15 a 206.00 82.00 2.00 0.00 2315.80
1958 0.00 0.00 0.00 33.00 290.00 320.00 562.00 672.50 347.50 142.00 0.00 0.00 2367.00
1959 0.00 0.00 0.00 22.00 237.00 587.50 631.00 718.00 307.50 16.00 0.00 0.00 2519.00
1960 0.00 0.00 0.00 53.00 186.00 404.50 650.50 610.50 325.00 91.50 0.00 0.00 2321.00
1961 0.00 0.00 2.50 16.50 138.00 476.50 584.50 649.50 277.50 96.50 0.00 0.00 2241.50
1962 0.00 0.00 0.00 64.50 307.50 454.50 558.00 602.50 212.50 137.00 0.50 0.00 2337.00
1963 0.00 0.00 29.00 76.00 221.50 593.50 699.50 604.50 361.50 273.00 0.00 0.00 2858.50
1964 0.00 0.00 0.00 60.50 309.00 519.00 774.50 491.50 254.00 67.00 16.50 0.00 2492.00
1965 0.00 0.00 0.00 24.00 268.00 462.50 614.00 561.00 104.00 92.50 4.00 0.00 2130.00
1966 0.00 0.00 2.50 14.50 187.00 484.50 788.50 519.50 289.00 56.00 0.00 a 0.00 2341.50
1967 0.00 0.00 24.50 35.00 148.50 421.50 559.00 505.50 282.00 90.00 0.00 0.00 2066.00
1968 0.00 0.00 26.00 55.00 122.00 494.00 596.50 615.00 277.00 105.00 0.50 0.00 2291.00
1969 0.00 0.00 0.00 46.50 317.00 333.50 664.00 651.50 359.50 61.50 1.00 0.00 2434.50
1970 0.00 0.00 0.00 81.50 328.00 565.00 696.50 660.50 365.00 103.00 0.00 0.00 2799.50
1971 0.00 0.00 5.00 113.00 209.00 643.00 552.50 668.00 356.50 148.00 0.00 0.00 2695.00
1972 0.00 0.00 0.00 28.50 347.00 513.50 618.00 616.00 304.00 83.50 0.00 0.00 2510.50
1973 0.00 a 0.00 4.50 44.00 227.50 559.00 653.00 737.50 289.50 203.00 0.00 z 0.00 2718.00
1974 0.00 0.00 1.00 75.00 149.00 441.00 802.00 478.50 194.48 a 59.00 1.00 0.00 a 2200.98
1975 0.00 e 0.00 0.00 b 6.00 302.25 a 444.00 745.50 613.00 181.00 105.50 18.10 a 0.00 b 2415.35
1976 0.00 a 0.00 7.20 c 85.34 a 215.50 516.00 737.00 696.00 319.50 24.44 e 0.00 0.00 d 2600.98
1977 0.00 b 0.00 8.02 b 196.61 b 513.50 577.00 774.00 472.50 318.50 24.80 a 8.65 d 0.00 b 2893.58
1978 0.00 e 0.00 20.84 b 13.00 263.00 504.81 d 630.00 617.86 b 461.50 56.00 g 19.82 b 0.00 d 2530.84
1979 0.00 c 0.00 b 0.00 a 49.50 205.50 505.00 654.50 521.50 356.50 37.50 0.00 0.00 c 2330.00
1980 0.00 d 0.00 0.00 104.00 304.83 a 552.22 c 682.00 b 603.50 352.00 84.98 b 1.00 0.00 c 2684.54
1981 0.00 a 0.00 10.50 156.00 247.00 511.50 676.50 547.50 0.00 z 40.50 0.00 z 0.00 c 2189.50
1982 0.00 a 0.00 0.00 70.00 251.00 301.00 629.00 541.50 233.00 30.00 0.00 0.00 a 2055.50
1983 0.00 c 0.00 2.50 8.50 116.50 408.00 752.50 764.50 308.50 39.50 5.00 0.00 2405.50
1984 0.00 0.00 0.00 13.00 145.00 440.50 575.50 613.50 183.50 0.00 z 0.00 0.00 1971.00
1985 0.00 0.00 0.00 154.00 347.00 378.00 587.50 432.50 255.00 15.50 0.00 0.00 2169.50
1986 0.00 0.00 18.00 40.50 247.50 538.00 669.00 424.00 217.00 38.50 0.00 0.00 2192.50
1987 0.00 0.00 5.50 117.00 353.50 531.50 679.50 431.50 213.00 25.50 8.00 0.00 2365.00
1988 0.00 0.00 3.00 47.00 434.50 722.50 751.50 693.00 318.50 25.50 0.00 0.00 2995.50
1989 0.00 0.00 a 9.50 99.00 280.00 450.50 738.50 576.50 281.00 114.00 0.00 0.00 2549.00
1990 0.00 0.00 6.50 122.00 190.00 546.00 594.00 595.50 415.50 52.50 19.50 0.00 2541.50
1991 0.00 0.00 1.50 93.50 370.50 630.00 599.00 587.00 308.00 67.50 0.00 0.00 2657.00
1992 0.00 0.00 0.00 33.50 317.50 436.50 396.00 424.50 251.00 100.50 0.00 0.00 1959.50
1993 0.00 0.00 0.00 16.55 a 186.50 371.00 575.50 583.00 158.00 58.00 0.00 0.00 1948.55
1994 0.00 0.00 3.00 54.50 368.50 538.00 544.00 515.00 360.50 76.00 2.00 0.00 2461.50
1995 0.00 0.00 1.00 0.50 140.00 543.50 661.00 702.00 273.50 56.00 0.00 0.00 2377.50
1996 0.00 0.00 0.00 23.00 167.50 531.00 557.00 583.00 257.50 93.50 0.00 0.00 2212.50
1997 0.00 0.00 0.00 24.00 124.00 584.00 670.50 554.50 369.00 162.50 0.00 0.00 2488.50
1998 0.00 0.00 8.50 56.50 412.50 406.50 667.00 632.50 471.50 80.50 0.00 0.00 2735.50
1999 0.00 a 0.00 a 9.50 38.00 275.50 502.50 746.50 596.00 292.00 50.52 d 23.00 0.00 a 2533.52
2000 0.00 c 0.00 31.00 53.00 301.50 453.50 667.00 650.00 343.50 121.00 14.50 0.00 b 2635.00
2001 0.00 b 0.00 b 0.00 92.00 279.00 515.50 735.00 656.50 322.00 59.50 41.50 0.00 b 2701.00
2002 0.00 0.00 0.00 83.50 166.50 579.50 796.50 582.50 384.00 33.50 0.00 0.00 2626.00
2003 0.00 0.00 6.50 104.50 182.50 454.00 656.50 667.00 290.50 142.00 0.00 0.00 2503.50
2004 0.00 0.00 9.50 67.50 208.00 380.50 582.50 412.50 430.50 80.00 3.00 0.00 2174.00
2005 0.00 a 0.00 5.00 107.00 232.00 588.00 684.00 568.00 463.00 113.50 8.00 0.00 a 2768.50
2006 0.00 0.00 0.00 90.50 271.00 512.00 771.00 613.00 206.00 101.50 11.00 0.00 z 2576.00
2007 0.00 0.00 10.50 85.50 364.50 553.50 725.50 613.00 380.00 114.00 0.00 0.00 2846.50
2008 0.00 0.00 0.00 25.50 151.50 438.50 661.50 577.00 305.00 54.50 21.50 0.00 2235.00
2009 0.00 0.00 0.50 38.00 233.00 429.50 473.50 480.00 371.50 0.00 0.00 0.00 a 2026.00
2010 0.00 0.00 10.00 97.50 240.50 471.00 673.50 708.00 252.50 102.50 8.50 0.00 a 2564.00
2011 0.00 0.00 0.00 11.00 199.36 b 461.50 770.00 582.50 236.00 174.50 0.00 a 0.00 a 2434.86
2012 0.00 a 0.00 76.47 a 90.58 d 318.50 577.24 a 842.50 599.00 324.50 36.00 0.00 0.00 2864.78
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 6.25 63.68 251.16 489.96 679.51 611.58 323.35 97.69 4.40 0.00 2548.29
S.D. 0.00 0.09 13.05 44.84 95.17 96.56 103.62 92.85 94.52 56.47 7.38 0.00 336.07
SKEW 0.00 10.54 3.52 0.81 0.90 0.37 0.36 0.05 0.27 0.70 2.26 0.00 0.34
MAX 0.00 1.00 79.00 213.00 617.50 817.50 1036.00 857.50 574.50 273.00 41.50 0.00 3413.62
MIN 0.00 0.00 0.00 0.50 64.00 297.41 396.00 412.50 104.00 0.00 0.00 0.00 1846.90
NO YRS 111 114 114 112 112 112 111 110 107 108 109 109 97