date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 40 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201210
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
1953 0.00 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 119.50 k 0.00
1954 163.00 222.00 315.00 611.00 746.50 1053.50 1157.85 a 1177.50 1006.00 785.50 313.00 114.50 7665.35
1955 63.50 120.50 394.50 578.79 a 821.50 932.50 1245.00 1219.91 d 1017.50 750.00 374.50 92.00 7610.20
1956 44.00 220.00 274.35 a 483.00 756.50 1017.50 1181.50 1157.00 955.50 745.07 b 434.46 b 437.00 7705.88
1957 144.00 178.00 302.50 684.00 886.00 1104.50 1182.50 1146.48 a 1077.00 624.28 b 450.00 262.47 a 8041.73
1958 57.35 a 70.50 95.00 483.00 799.00 925.50 1249.00 1159.50 927.00 682.00 481.50 74.50 7003.85
1959 110.50 160.00 267.00 562.00 869.50 1018.00 1161.47 a 1206.42 a 1018.50 809.50 415.50 191.00 7789.38
1960 132.27 a 113.50 110.50 647.00 798.50 1022.00 1133.00 1192.00 1003.00 711.00 429.11 b 63.00 7354.87
1961 59.86 b 175.00 377.68 a 0.00 z 0.00 z 699.00 h 863.00 i 1191.00 560.00 n 0.00 z 438.60 e 111.50 f 2242.15
1962 149.83 d 147.50 185.50 g 494.48 a 640.00 h 762.00 g 1107.45 b 1133.71 c 930.50 764.00 335.50 105.50 5168.48
1963 91.50 41.00 410.50 556.03 a 731.00 1005.50 1161.98 a 1155.50 867.00 707.00 456.00 62.52 a 7245.53
1964 172.50 98.50 366.50 487.50 793.00 1019.00 1108.00 1080.00 959.00 634.00 512.00 285.00 7515.00
1965 152.00 131.50 162.00 410.00 840.00 0.00 z 1112.12 c 1128.50 1017.93 a 694.50 434.00 191.50 6274.06
1966 121.50 95.50 334.50 454.50 724.00 943.00 1190.50 1128.50 974.50 726.00 408.50 154.50 7255.50
1967 192.50 137.00 290.00 566.50 641.00 889.00 1139.00 1096.50 869.50 742.50 297.00 237.50 7098.00
1968 73.00 35.50 350.00 483.50 783.50 1036.50 1180.50 1229.00 961.50 773.50 425.50 149.00 7481.00
1969 71.00 50.00 149.50 546.50 778.00 1041.50 1198.50 1135.50 948.50 749.50 313.00 90.50 7072.00
1970 55.80 a 107.33 a 186.52 a 505.00 868.00 e 1043.00 875.00 h 1154.75 e 850.50 f 777.21 c 417.41 a 202.57 b 5317.60
1971 64.38 e 182.00 a 193.50 g 471.00 e 756.63 d 1057.22 c 755.00 l 917.00 f 1021.11 c 863.35 a 383.04 b 308.00 f 4798.73
1972 265.80 d 139.00 297.00 530.50 722.50 894.00 1196.00 1161.50 988.39 b 697.50 387.32 b 320.16 b 7599.67
1973 173.08 a 87.11 a 338.33 b 568.50 802.38 a 1091.50 1145.45 a 1179.00 1078.39 b 795.84 b 435.58 d 287.50 7982.67
1974 337.79 b 188.09 e 409.72 a 619.00 837.00 d 999.64 b 1182.00 1140.50 989.50 577.12 a 324.00 i 218.07 b 7498.42
1975 219.58 a 102.50 l 324.39 c 381.11 c 768.59 b 482.00 p 840.00 i 1231.70 c 1014.44 c 826.67 a 437.00 f 102.50 m 4766.48
1976 105.00 317.50 455.59 c 589.29 b 753.41 c 676.50 j 1144.62 e 1068.95 c 687.50 h 393.00 k 128.00 i 34.50 p 4434.35
1977 10.50 f 183.04 a 269.00 h 454.50 k 848.07 c 993.89 c 1271.50 1218.19 d 1069.80 e 651.00 a 420.00 f 205.50 6440.98
1978 63.00 22.00 169.50 f 517.50 685.50 978.00 e 1095.13 e 1218.00 989.44 c 540.00 f 494.48 a 202.50 f 6063.06
1979 123.43 d 41.50 284.34 b 496.73 d 784.30 a 964.29 b 1149.50 1170.25 a 1030.50 710.79 c 535.00 230.71 e 7521.33
1980 110.57 a 95.06 b 289.91 d 562.50 849.00 1016.25 b 1223.31 e 955.00 f 1086.21 a 696.50 269.50 h 151.00 g 5929.29
1981 24.80 a 5.50 w 180.50 k 633.62 a 757.00 1166.00 1241.50 1119.50 983.00 727.50 321.50 g 117.91 c 6770.83
1982 90.42 a 115.50 286.00 402.32 b 824.82 c 995.89 b 1176.45 a 1124.55 b 911.50 673.50 468.46 d 201.50 h 7069.42
1983 105.40 a 72.15 b 300.70 a 429.00 772.00 978.00 1216.48 b 1170.00 996.00 731.08 a 347.31 d 240.25 e 7358.38
1984 25.66 b 201.26 d 161.50 406.61 b 821.00 1042.76 a 1113.00 1157.50 930.00 830.28 a 313.97 a 322.40 a 7325.93
1985 62.50 113.00 275.26 b 581.50 836.45 c 1002.69 d 1136.09 d 1137.00 1000.86 a 841.65 a 654.50 146.45 b 7787.95
1986 107.50 121.50 283.50 486.00 784.00 1075.00 1268.50 1144.00 969.00 828.00 481.50 196.50 7745.00
1987 106.00 16.59 a 240.50 431.00 853.00 1087.00 1268.50 1230.00 1037.00 553.50 465.00 209.50 7497.59
1988 74.92 a 165.00 327.00 528.50 559.00 i 1022.50 1222.00 1225.00 959.50 407.50 k 301.50 i 132.50 j 5524.42
1989 135.50 l 173.00 f 312.77 c 325.50 l 490.50 k 1177.00 790.50 k 1178.50 697.50 j 458.50 m 350.50 j 28.00 n 2668.27
1990 184.50 j 235.50 i 126.00 q 570.00 831.50 707.50 i 832.00 j 1186.50 553.50 l 403.50 o 261.50 l 181.00 p 2588.00
1991 112.00 k 196.50 i 270.50 k 579.11 b 960.50 701.50 j 1297.00 839.00 i 697.00 j 441.00 i 253.50 l 164.50 j 2836.61
1992 91.50 l 127.00 k 293.00 557.59 a 0.00 z 963.62 a 1297.50 1159.00 730.50 i 440.50 j 311.50 l 166.00 i 4270.71
1993 138.00 l 80.00 213.26 b 502.24 a 531.00 m 1094.00 748.00 m 689.00 m 759.50 i 298.50 r 316.50 j 109.00 n 1889.50
1994 61.00 l 164.37 a 365.00 454.00 j 496.00 k 1112.00 827.00 k 1132.50 687.50 i 386.00 k 403.50 j 179.00 m 2773.87
1995 67.50 l 75.00 i 247.00 k 357.50 k 615.00 i 1027.00 834.00 k 1195.00 680.00 j 564.50 j 183.50 r 63.00 u 2222.00
1996 56.00 n 100.50 l 172.00 l 568.97 a 514.00 j 703.00 j 753.00 k 781.00 i 677.50 j 542.50 j 188.00 m 145.50 o 568.97
1997 144.00 j 164.50 k 256.00 j 471.21 a 459.00 l 584.50 l 826.50 j 783.50 j 605.00 k 433.50 l 179.50 m 54.00 v 471.21
1998 175.50 n 161.00 m 228.00 l 650.89 b 487.50 m 691.00 j 892.50 i 612.50 o 733.00 i 418.50 n 251.00 n 199.50 o 650.89
1999 184.50 n 94.50 m 195.50 j 329.50 n 454.50 l 762.50 h 752.50 l 776.00 k 649.50 j 270.50 s 254.50 l 133.00 k 0.00
2000 90.00 l 139.50 j 293.00 h 311.00 k 595.00 j 752.50 i 767.00 j 888.00 h 612.50 k 494.00 l 178.00 m 50.50 t 0.00
2001 75.50 j 144.00 j 148.50 k 381.00 i 534.50 j 762.50 i 788.00 k 945.00 g 600.50 k 519.50 j 332.50 j 246.00 p 0.00
2002 204.50 n 145.00 k 142.50 q 468.00 j 529.00 l 753.50 k 941.50 i 784.00 l 572.50 n 525.00 k 159.50 r 29.50 p 0.00
2003 39.50 m 44.00 k 248.00 j 359.00 i 557.50 j 728.00 j 811.00 k 772.00 k 617.50 l 0.00 z 339.50 o 80.00 o 0.00
2004 56.50 m 48.50 k 214.50 j 252.00 n 700.00 k 605.50 n 776.50 l 834.00 i 734.50 i 418.00 m 294.00 l 171.00 n 0.00
2005 179.50 k 77.50 k 141.00 h 318.00 n 469.00 j 803.00 h 821.50 l 858.50 j 802.00 i 501.50 l 316.50 n 62.00 k 0.00
2006 165.50 n 50.50 s 89.00 s 205.00 s 55.00 z 474.50 q 434.50 s 810.00 l 578.50 l 432.50 n 309.00 l 199.50 l 0.00
2007 75.00 m 51.00 k 337.50 j 383.50 k 422.50 o 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2008 0.00 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
2009 0.00 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
2010 0.00 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
2011 27.50 162.00 277.00 675.50 882.50 1127.00 1271.00 1222.95 a 1043.50 778.21 b 499.50 322.00 8288.66
2012 207.70 a 191.00 494.85 d 556.50 908.50 1030.00 1322.50 1230.00 1041.72 a 601.00 h 0.00 z 0.00 z 6982.78
Period of Record Statistics
MEAN 115.25 128.68 294.88 531.42 802.07 1025.57 1192.75 1167.30 990.38 733.06 427.63 197.50 7542.98
S.D. 69.06 64.58 89.85 75.66 64.15 67.08 61.83 42.50 54.53 74.67 77.57 92.55 324.72
SKEW 1.19 0.41 -0.25 0.00 -0.04 0.14 0.33 -0.20 -0.33 -0.45 0.49 0.48 0.35
MAX 337.79 317.50 494.85 684.00 960.50 1177.00 1322.50 1231.70 1086.21 863.35 654.50 437.00 8288.66
MIN 24.80 16.59 95.00 381.11 641.00 889.00 1095.13 1068.95 867.00 553.50 297.00 62.52 7003.85
NO YRS 36 37 36 42 36 37 35 40 34 32 29 28 22