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 z 0.00 z 0.00 n 0.00 61.00 i 592.00 602.00 419.50 269.50 30.50 1.50 0.00 c 1915.00
1894 0.00 0.00 0.00 a 70.00 170.00 568.00 658.00 581.50 336.00 25.50 0.00 0.00 2409.00
1895 0.00 0.00 0.00 64.00 243.00 471.50 564.50 456.50 299.50 15.50 3.50 0.00 2118.00
1896 0.00 0.00 0.00 72.50 355.50 473.00 560.00 503.00 179.00 25.00 0.00 0.00 2168.00
1897 0.00 0.00 0.00 32.50 188.00 351.21 a 683.50 0.00 z 443.50 111.50 0.00 0.00 z 1810.21
1898 0.00 0.00 0.00 19.50 170.50 488.00 593.13 a 485.00 292.50 38.00 0.00 0.00 a 2086.63
1899 0.00 0.00 0.00 81.00 167.00 416.00 604.00 543.00 188.50 32.00 0.00 0.00 2031.50
1900 0.00 0.00 0.00 a 114.50 294.00 470.00 557.50 746.00 290.50 185.50 0.00 0.00 2658.00
1901 0.00 0.00 b 0.00 82.50 254.50 461.40 e 730.00 616.00 254.00 102.00 0.00 0.00 2500.40
1902 0.00 0.00 0.50 26.00 290.50 234.00 f 568.91 d 474.50 181.50 17.50 3.00 0.00 1562.41
1903 0.00 0.00 0.00 b 6.50 251.10 a 362.00 486.18 a 416.00 201.00 28.00 3.50 0.00 1754.28
1904 0.00 a 0.00 0.00 7.76 a 171.00 385.56 c 463.00 443.50 209.50 43.00 4.66 a 0.00 v 1727.97
1905 0.00 0.00 1.00 24.50 118.50 387.00 512.00 575.50 366.50 96.50 0.00 0.00 2081.50
1906 0.00 0.00 0.00 88.00 182.00 398.00 550.50 541.50 388.50 83.00 0.00 0.00 2231.50
1907 0.00 0.00 0.00 0.00 65.50 391.00 520.00 524.50 201.50 32.50 0.00 0.00 c 1735.00
1908 0.00 0.00 0.00 a 101.50 185.50 380.00 588.00 486.70 a 470.50 109.00 0.00 0.00 2321.20
1909 0.00 0.00 0.00 0.00 191.00 451.50 588.50 652.50 269.00 90.50 9.50 0.00 2252.50
1910 0.00 0.00 64.50 67.00 78.50 0.00 z 594.50 0.00 z 248.50 168.00 0.00 a 0.00 a 1221.00
1911 0.00 0.00 z 0.00 z 87.00 369.00 607.00 585.50 437.50 223.00 16.07 d 0.00 0.00 b 2325.07
1912 0.00 z 0.00 0.00 41.00 192.00 416.50 693.50 0.00 z 0.00 z 0.00 z 0.50 0.00 1343.50
1913 0.00 z 0.00 0.00 z 105.50 153.50 525.50 531.00 0.00 z 296.50 98.00 0.00 z 0.00 1710.00
1914 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
1915 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
1916 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 45.00 5.50 0.00 a 50.50
1917 0.00 0.00 0.00 5.50 105.92 a 287.07 a 640.50 437.10 a 298.39 b 9.09 b 0.00 a 0.00 1783.56
1918 0.00 0.00 4.00 13.50 234.80 d 257.50 k 366.00 k 0.00 z 126.35 d 0.00 z 0.00 z 0.00 z 378.64
1919 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
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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
1926 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
1927 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
1928 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 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
1936 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
1937 0.00 z 0.00 z 0.00 5.00 275.50 495.00 690.00 727.50 308.00 54.50 s 2.50 0.00 2503.50
1938 0.00 0.00 a 0.00 66.96 b 158.00 518.50 617.00 0.00 z 26.00 y 109.00 12.50 l 0.00 1469.46
1939 0.00 u 0.00 a 0.00 34.00 321.00 452.00 581.50 472.00 291.00 13.50 0.00 0.00 z 2165.00
1940 0.00 a 0.00 0.00 15.50 211.00 355.00 672.50 486.00 358.50 102.50 0.00 d 0.00 2201.00
1941 0.00 b 0.00 i 0.00 91.50 350.50 496.50 700.00 572.00 328.00 69.50 0.00 4.50 2612.50
1942 0.00 0.00 0.00 0.00 z 110.00 n 378.00 545.00 547.50 254.00 136.00 0.00 0.00 1860.50
1943 0.00 0.00 l 0.00 z 0.00 z 192.72 a 592.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 a 0.00 784.72
1944 0.00 0.00 0.00 15.00 312.00 500.50 585.00 565.50 240.50 37.00 1.00 0.00 a 2256.50
1945 0.00 z 0.00 15.00 r 5.50 87.00 315.00 595.50 615.50 236.50 55.00 0.00 z 0.00 z 1910.00
1946 0.00 z 0.00 22.00 70.50 149.00 433.50 604.00 508.00 258.00 39.00 0.00 0.00 a 2084.00
1947 0.00 0.00 q 0.00 11.00 29.50 393.50 562.50 g 801.50 346.00 178.00 0.00 0.00 f 1759.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 621.50 580.00 394.50 34.88 c 0.00 j 0.00 b 1630.88
1949 0.00 0.00 0.00 c 0.00 h 0.00 z 0.00 z 113.00 y 601.50 156.00 74.00 0.00 0.00 831.50
1950 0.00 0.00 a 0.00 0.00 141.50 449.50 492.00 398.50 282.00 62.50 2.50 0.00 1828.50
1951 0.00 0.00 0.00 29.00 271.00 312.50 562.00 423.50 155.50 75.50 0.00 b 0.00 1829.00
1952 0.00 0.00 0.00 a 119.00 196.50 458.00 590.00 467.50 308.50 11.00 0.00 0.00 2150.50
1953 0.00 0.00 0.00 4.50 199.00 444.50 574.50 624.50 276.00 194.50 6.50 0.00 2324.00
1954 0.00 0.00 0.00 19.50 113.50 470.50 625.00 505.00 225.50 38.50 2.00 0.00 a 1999.50
1955 0.00 0.00 0.00 95.50 345.50 454.50 749.50 663.50 274.00 91.00 0.00 0.00 2673.50
1956 0.00 0.00 0.00 a 0.00 198.00 554.50 498.00 525.00 185.00 166.00 8.50 0.00 a 2135.00
1957 0.00 a 0.00 0.00 89.48 a 150.72 b 380.50 714.15 d 525.00 214.50 39.30 c 0.00 b 0.00 e 2113.66
1958 0.00 0.00 b 0.00 b 25.00 f 134.50 h 251.50 494.97 a 515.00 296.00 80.60 a 0.00 a 0.00 1638.07
1959 0.00 a 0.00 0.00 11.50 g 254.20 a 539.48 a 644.28 a 652.50 306.00 12.18 c 0.00 0.00 2408.64
1960 0.00 0.00 b 0.00 41.00 228.00 391.50 658.50 631.00 331.00 82.50 0.00 0.00 2363.50
1961 0.00 a 0.00 6.50 5.50 146.00 518.00 588.00 654.50 306.00 103.33 a 0.00 0.00 2327.83
1962 0.00 0.00 0.00 46.03 a 245.50 437.00 541.50 585.90 a 205.50 117.50 0.00 1.50 2180.43
1963 0.00 0.00 10.69 b 59.50 199.00 567.00 686.50 568.00 352.00 250.00 0.00 0.00 2692.69
1964 0.00 0.00 0.00 46.50 297.50 478.50 697.00 480.00 253.00 74.00 12.00 0.00 2338.50
1965 0.00 0.00 b 0.00 23.00 235.00 460.50 581.50 537.50 85.34 a 87.50 10.00 0.00 2020.34
1966 0.00 0.00 0.00 2.00 162.50 490.00 732.50 474.00 251.50 56.00 0.00 0.00 b 2168.50
1967 0.00 0.00 11.00 20.00 126.50 409.00 561.50 473.00 264.50 63.00 0.00 0.00 1928.50
1968 0.00 0.00 13.50 61.50 98.50 428.50 578.50 561.50 274.00 95.00 0.00 b 0.00 g 2111.00
1969 0.00 0.00 0.00 36.00 269.50 290.00 574.50 667.50 290.00 52.00 2.00 0.00 2181.50
1970 0.00 0.00 0.00 41.50 199.00 539.50 710.50 578.00 319.00 76.50 0.00 0.00 2464.00
1971 0.00 0.00 0.00 54.00 143.00 544.50 485.00 509.50 306.00 100.00 0.00 0.00 2142.00
1972 0.00 0.00 k 0.00 15.00 319.00 451.00 566.00 598.50 228.50 58.00 0.00 0.00 2236.00
1973 0.00 0.00 0.00 40.00 177.00 484.50 607.50 624.50 239.50 160.00 0.00 0.00 2333.00
1974 0.00 0.00 0.00 70.50 146.50 442.50 737.00 463.00 200.50 79.00 0.50 0.00 2139.50
1975 0.00 0.00 0.00 0.00 287.00 468.00 743.00 561.00 185.00 122.00 23.50 0.00 2389.50
1976 0.00 0.00 0.00 70.00 211.00 560.50 660.00 641.00 315.50 71.00 0.00 0.00 2529.00
1977 0.00 a 0.00 6.00 149.50 470.50 495.50 690.50 407.50 259.00 40.50 2.50 0.00 2521.50
1978 0.00 0.00 0.00 16.00 290.50 450.52 a 612.50 598.50 0.00 z 55.00 12.50 0.00 2035.52
1979 0.00 0.00 0.00 18.50 125.00 417.50 612.50 475.00 347.00 28.50 0.00 0.00 2024.00
1980 0.00 0.00 0.00 100.00 165.50 v 440.50 609.00 483.50 232.00 43.92 a 1.00 0.00 1909.92
1981 0.00 0.00 4.50 34.00 181.00 416.00 570.50 540.00 231.50 26.00 3.50 0.00 2007.00
1982 0.00 0.00 0.00 53.50 301.50 306.00 646.00 559.50 236.00 41.00 0.00 0.00 2143.50
1983 0.00 0.00 0.00 15.50 121.00 473.00 728.00 702.00 307.50 27.50 0.00 0.00 2374.50
1984 0.00 0.00 0.00 12.50 189.50 459.50 622.00 673.00 181.00 146.00 0.00 0.00 2283.50
1985 0.00 0.00 0.00 112.50 341.00 368.50 609.00 432.50 270.00 19.00 0.00 0.00 2152.50
1986 0.00 0.00 7.50 35.50 249.00 527.00 672.50 478.50 230.00 48.50 0.00 0.00 2248.50
1987 0.00 0.00 8.50 165.00 388.00 606.00 753.50 563.50 327.50 37.00 3.50 0.00 2852.50
1988 0.00 0.00 0.00 55.50 474.00 702.50 812.50 688.00 317.00 50.50 0.00 0.00 3100.00
1989 0.00 0.00 0.00 57.00 281.50 468.50 760.50 621.00 326.00 116.50 0.00 0.00 2631.00
1990 0.00 0.00 1.50 119.50 194.00 527.50 591.00 607.50 371.00 52.50 13.50 0.00 2478.00
1991 0.00 0.00 0.00 94.50 412.50 588.50 637.50 650.50 282.50 49.00 0.00 0.00 2715.00
1992 0.00 0.00 0.00 41.50 327.00 397.50 427.50 461.00 270.00 98.50 0.00 0.00 2023.00
1993 0.00 0.00 0.00 23.00 203.50 374.00 567.00 575.00 156.00 58.50 0.00 0.00 1957.00
1994 0.00 0.00 0.00 45.50 325.00 526.00 582.50 505.50 363.50 90.00 3.50 0.00 2441.50
1995 0.00 0.00 0.00 1.00 160.50 594.50 636.50 660.00 287.50 69.50 0.00 0.00 2409.50
1996 0.00 0.00 0.00 8.00 185.00 519.00 560.50 616.00 290.50 89.00 0.00 0.00 2268.00
1997 0.00 0.00 0.00 18.50 123.00 572.50 617.50 533.50 377.50 164.00 0.00 a 0.00 2406.50
1998 0.00 0.00 8.00 62.50 409.50 401.00 644.50 655.50 449.00 74.00 0.00 0.00 2704.00
1999 0.00 0.00 5.50 28.00 273.00 505.00 731.50 589.00 270.00 51.00 25.50 0.00 2478.50
2000 0.00 0.00 15.50 45.00 284.50 399.00 631.00 601.50 294.00 123.00 13.00 0.00 2406.50
2001 0.00 0.00 0.00 80.00 269.00 511.50 711.00 683.00 286.00 43.00 30.50 0.00 2614.00
2002 0.00 0.00 0.00 67.00 163.00 591.00 733.50 581.50 405.00 36.00 0.00 0.00 2577.00
2003 0.00 0.00 1.50 80.50 182.00 440.50 659.00 695.00 327.00 146.50 0.00 0.00 2532.00
2004 0.00 0.00 0.00 47.00 163.50 369.00 567.00 403.00 453.50 70.50 0.00 0.00 2073.50
2005 0.00 0.00 2.00 120.00 198.00 571.55 a 686.50 594.74 d 398.40 e 0.00 z 0.00 z 0.00 z 2571.19
2006 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
2007 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 70.00 0.00 0.00 70.00
2008 0.00 0.00 0.00 6.50 72.50 321.00 496.50 470.50 218.00 23.50 16.00 0.00 1624.50
2009 0.00 0.00 0.00 27.00 124.00 310.50 389.00 403.00 356.50 0.00 0.00 0.00 1610.00
2010 0.00 0.00 7.00 34.00 210.50 365.50 569.50 580.50 120.50 88.00 0.50 0.00 1976.00
2011 0.00 0.00 0.00 6.00 117.00 332.50 654.00 504.00 214.00 133.00 0.00 0.00 1960.50
2012 0.00 0.00 53.50 25.50 207.00 432.50 705.00 455.00 234.00 37.00 0.00 0.00 2149.50
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 0.00 2.77 46.37 218.62 455.10 615.45 553.03 277.67 73.56 2.45 0.07 2251.20
S.D. 0.00 0.00 9.29 38.17 90.34 86.50 79.82 88.41 75.27 48.31 5.65 0.50 291.87
SKEW 0.00 0.00 5.19 0.81 0.60 0.08 -0.08 0.27 0.17 1.05 3.07 8.27 0.17
MAX 0.00 0.00 64.50 165.00 474.00 702.50 812.50 801.50 470.50 250.00 30.50 4.50 3100.00
MIN 0.00 0.00 0.00 0.00 29.50 251.50 389.00 398.50 85.34 0.00 0.00 0.00 1610.00
NO YRS 90 90 92 91 91 92 93 90 93 94 93 91 70