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
1952 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 352.00 n 717.00 565.00 335.50 20.15 a 12.50 0.00 1650.15
1953 0.00 0.00 9.00 12.50 251.10 a 604.00 643.50 631.50 335.50 181.41 d 22.24 a 0.00 2690.75
1954 0.00 b 0.00 0.00 129.00 168.00 623.00 723.50 570.00 343.97 a 81.50 6.50 0.00 2645.47
1955 0.00 0.00 0.50 118.00 366.00 463.50 846.00 746.50 396.00 128.00 0.00 0.00 3064.50
1956 0.00 0.00 a 0.00 18.50 306.00 0.00 z 559.00 614.00 261.50 211.00 21.00 0.00 1991.00
1957 0.00 0.00 0.00 138.00 244.50 520.50 761.50 598.62 b 281.00 54.00 0.00 0.00 2598.12
1958 0.00 0.00 0.00 l 62.50 289.50 369.00 571.50 620.50 355.50 176.50 0.52 a 0.00 2445.52
1959 0.00 0.00 0.00 55.00 376.50 546.43 b 607.50 706.00 340.00 20.00 0.00 f 0.00 b 2651.43
1960 0.00 b 0.00 0.00 87.12 d 259.50 410.50 597.50 630.85 a 354.00 79.50 2.00 0.00 2420.97
1961 0.00 0.00 0.00 8.28 a 189.00 505.86 a 438.50 g 613.00 309.64 b 130.95 b 4.50 0.00 1761.23
1962 0.00 0.00 a 5.00 76.61 b 404.60 b 449.48 a 522.41 d 556.40 b 212.78 c 141.50 0.00 g 0.50 2369.28
1963 0.00 0.00 b 64.21 c 64.50 154.50 506.00 430.00 i 476.76 b 268.50 221.00 0.00 u 0.00 1755.47
1964 0.00 0.00 0.00 71.25 b 377.50 544.66 a 782.23 a 538.88 a 284.00 62.00 36.00 0.00 2696.52
1965 0.00 0.00 0.00 21.21 a 332.50 441.50 592.10 a 518.14 c 206.00 75.43 a 8.50 0.00 2195.38
1966 0.00 0.00 17.05 a 6.00 146.73 a 468.50 680.00 491.50 248.28 a 84.22 a 0.00 0.00 2142.28
1967 0.00 0.00 14.50 45.00 140.50 472.00 528.60 b 429.00 249.50 89.50 0.00 0.00 c 1968.60
1968 0.00 a 0.00 b 28.00 61.50 106.90 b 452.00 574.00 563.00 261.00 135.37 a 5.19 d 0.00 2186.96
1969 0.00 0.00 0.00 37.50 265.50 268.50 594.50 575.00 262.50 b 85.50 0.00 0.00 2089.00
1970 0.00 0.00 0.00 95.00 291.00 499.00 657.50 590.00 320.00 92.50 0.00 b 0.00 a 2545.00
1971 0.00 0.00 3.00 71.50 110.64 b 633.50 507.50 505.50 376.50 178.00 2.14 b 0.00 b 2388.28
1972 0.00 a 0.00 k 0.00 d 4.50 o 189.00 o 472.76 a 408.50 g 611.00 306.00 68.50 0.00 0.00 1458.26
1973 0.00 0.00 8.00 31.50 165.00 532.50 678.00 605.50 308.00 182.50 0.00 0.00 2511.00
1974 0.00 0.00 0.50 94.00 196.00 408.00 737.00 506.50 199.50 109.50 10.00 0.00 2261.00
1975 0.00 0.00 0.00 19.00 330.00 506.50 679.00 628.00 200.50 149.00 25.00 0.00 2537.00
1976 0.00 a 0.00 15.00 87.00 194.00 521.50 687.50 551.50 283.00 83.50 0.00 0.00 2423.00
1977 0.00 0.00 17.50 214.00 471.50 526.00 734.50 490.32 a 343.50 20.50 13.00 0.00 2830.82
1978 0.00 0.00 7.23 a 19.50 291.50 524.00 630.52 c 564.00 461.50 70.00 11.50 0.00 2579.75
1979 0.00 0.00 0.00 33.00 228.50 499.00 621.00 586.50 372.50 71.50 6.50 0.00 2418.50
1980 0.00 0.00 0.00 104.50 304.50 533.00 720.00 645.00 372.50 47.50 0.50 0.00 2727.50
1981 0.00 2.50 17.00 92.50 193.00 477.00 607.50 562.00 285.00 63.00 7.50 0.00 2307.00
1982 0.00 0.00 1.50 31.50 289.00 286.00 632.50 564.50 304.50 70.50 5.00 0.00 2185.00
1983 0.00 0.00 5.50 22.50 125.00 463.50 741.00 711.00 355.50 77.00 11.50 0.00 2512.50
1984 0.00 0.00 0.00 27.50 150.00 526.00 0.00 z 655.00 319.50 135.00 0.00 a 0.00 1813.00
1985 0.00 0.00 2.00 171.00 205.50 l 422.50 601.00 424.00 280.00 12.50 0.00 0.00 b 1913.00
1986 0.00 0.00 16.53 a 72.50 207.00 457.00 0.00 z 363.00 265.50 35.50 0.00 0.00 1417.03
1987 0.00 0.00 3.50 86.00 274.50 483.50 650.00 442.00 213.50 0.00 z 0.00 z 0.00 2153.00
1988 0.00 0.00 a 0.00 0.00 z 357.00 632.50 725.00 0.00 z 357.50 55.50 0.00 z 0.00 z 2127.50
1989 0.00 0.00 25.00 56.00 237.50 452.00 716.50 607.00 300.50 172.50 0.00 0.00 2567.00
1990 0.00 0.00 20.50 121.50 164.50 521.00 620.00 604.50 407.00 65.50 33.00 0.00 2557.50
1991 0.00 0.00 19.00 109.50 372.50 636.50 634.50 605.50 305.50 69.00 0.00 0.00 2752.00
1992 0.00 0.00 0.00 0.00 z 263.00 409.50 0.00 z 432.50 277.50 102.50 0.00 0.00 1485.00
1993 0.00 0.00 0.00 25.00 205.00 416.00 599.00 593.50 162.50 60.50 0.00 0.00 2061.50
1994 0.00 0.00 1.00 77.50 251.50 545.00 545.00 478.00 404.00 104.50 4.00 0.00 2410.50
1995 0.00 0.00 12.00 5.00 160.00 559.50 651.00 752.50 259.00 86.00 0.00 0.00 2485.00
1996 0.00 0.00 0.00 29.00 147.50 491.00 554.50 522.50 279.50 95.00 0.00 0.00 2119.00
1997 0.00 0.00 10.50 34.50 97.00 526.50 608.50 512.00 328.00 156.00 1.50 0.00 2274.50
1998 0.00 0.00 33.50 57.00 390.00 431.50 640.50 609.50 431.50 80.50 2.00 1.00 2677.00
1999 0.00 0.00 7.00 28.45 a 282.00 501.00 747.50 543.50 267.50 64.50 23.50 0.00 2464.95
2000 0.00 0.50 27.00 51.00 308.50 461.00 610.00 604.50 328.50 142.00 18.00 0.00 2551.00
2001 0.00 0.00 0.00 109.50 271.00 477.00 685.50 684.00 292.50 59.50 60.00 7.50 2646.50
2002 0.00 0.00 0.00 113.00 208.50 579.00 751.50 598.00 393.50 61.50 0.00 0.00 2705.00
2003 0.00 i 0.00 24.00 85.00 176.00 443.50 637.50 663.50 337.00 107.00 0.00 0.00 2473.50
2004 0.00 0.00 19.50 76.50 221.00 409.50 566.50 412.00 409.00 61.00 5.00 0.00 2180.00
2005 0.00 0.00 14.00 102.50 192.00 621.00 685.00 560.50 431.00 145.00 0.00 0.00 2751.00
2006 0.00 0.00 0.00 94.50 260.00 485.50 736.00 614.00 226.00 74.50 13.50 0.00 2504.00
2007 0.00 0.00 31.00 79.50 344.50 534.00 628.00 608.50 376.00 191.00 0.00 0.00 2792.50
2008 0.00 0.00 0.00 45.50 141.50 471.50 665.50 552.50 385.00 75.50 44.00 0.00 2381.00
2009 0.00 0.00 1.00 49.50 239.50 458.50 484.00 507.50 369.00 15.00 4.50 0.00 2128.50
2010 0.00 0.00 13.50 114.50 276.50 537.50 729.50 744.50 289.50 121.50 2.50 0.00 a 2829.50
2011 0.00 0.00 0.00 32.00 244.00 517.50 798.50 619.00 287.50 148.00 3.00 0.00 2649.50
2012 0.00 0.00 154.50 58.45 a 379.00 576.50 833.00 553.00 279.00 78.00 14.00 0.00 a 2925.45
2013 0.00 0.00 0.00 a 0.00 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 0.05 10.81 67.37 248.09 493.40 655.23 573.87 312.39 97.26 7.86 0.15 2485.60
S.D. 0.00 0.33 22.36 42.78 86.26 73.88 81.79 82.32 64.27 50.38 12.32 0.98 252.22
SKEW 0.00 7.16 4.77 0.87 0.32 -0.43 0.18 -0.15 0.04 0.57 2.26 7.32 -0.08
MAX 0.00 2.50 154.50 214.00 471.50 636.50 846.00 752.50 461.50 221.00 60.00 7.50 3064.50
MIN 0.00 0.00 0.00 5.00 97.00 268.50 484.00 363.00 162.50 12.50 0.00 0.00 1968.60
NO YRS 60 60 60 57 58 59 55 60 61 60 56 60 46