BURLINGTON, COLORADO

Monthly Total Growing Degree Days

(051121)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1903 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 17.50 17.50
1904 8.00 84.00 126.50 246.50 514.50 700.18 b 941.00 915.50 733.00 411.50 133.97 a 30.50 4845.14
1905 5.68 a 28.58 d 152.00 220.34 a 461.00 879.00 920.00 1039.00 793.97 a 283.00 123.21 b 0.52 a 4906.31
1906 25.00 34.50 32.00 303.46 d 518.00 735.50 902.74 b 959.40 b 746.00 329.50 81.50 65.50 4733.10
1907 7.23 a 73.50 255.48 b 201.43 b 407.00 800.50 1076.00 1030.50 752.07 a 0.00 z 0.00 z 0.00 z 4603.71
1908 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 423.50 r 1005.50 845.00 321.92 e 121.03 a 0.00 2293.46
1909 2.50 12.50 63.60 b 192.50 498.00 799.50 1038.00 1099.50 0.00 z 413.50 193.50 0.00 4313.10
1910 29.00 24.00 363.14 c 235.00 l 489.00 898.00 1134.50 933.50 777.93 a 543.00 155.00 10.00 5357.07
1911 81.50 33.50 191.50 275.50 631.50 1009.50 1058.00 998.50 865.50 309.50 44.00 5.00 5503.50
1912 4.00 3.00 7.00 231.00 620.00 749.50 1012.50 946.50 549.00 355.50 118.97 a 4.00 4600.97
1913 14.50 17.50 91.50 363.62 a 659.78 a 848.50 1117.00 1163.53 a 638.50 313.00 152.50 0.00 5379.94
1914 2.50 18.00 76.50 311.50 581.50 954.50 1062.50 1043.00 847.50 438.00 197.50 0.00 5533.00
1915 0.00 27.50 12.00 380.50 459.00 458.00 l 906.50 664.50 f 685.50 479.50 193.00 37.50 3181.00
1916 5.00 64.50 256.78 a 259.00 559.00 828.50 1173.00 997.00 692.00 347.00 105.00 36.00 5322.78
1917 4.50 27.50 69.50 183.00 373.00 799.50 1122.50 915.50 760.00 313.50 188.50 61.00 4818.00
1918 26.00 66.50 229.50 126.00 635.50 997.50 1056.87 d 1089.50 590.50 516.50 114.00 34.50 5482.87
1919 0.00 0.00 109.00 289.00 577.00 816.50 1112.50 1117.79 e 876.50 291.50 60.00 28.00 5277.79
1920 30.00 10.50 128.50 140.00 559.50 837.00 1040.00 896.00 750.00 475.00 72.50 27.50 4966.50
1921 27.00 89.50 272.00 341.00 700.27 c 1003.00 750.00 k 799.50 g 0.00 z 562.50 233.50 47.50 3276.27
1922 5.00 31.50 95.00 0.00 z 0.00 z 730.00 h 592.00 m 1090.96 e 424.00 q 310.50 f 92.00 19.63 a 1334.09
1923 40.00 6.00 55.28 a 257.50 486.50 634.50 i 1039.50 946.57 b 705.00 261.50 105.50 17.00 3920.35
1924 6.50 60.00 18.00 273.50 402.00 877.50 1028.00 1076.50 633.00 492.00 128.00 9.50 5004.50
1925 0.00 41.00 189.10 a 387.50 633.00 951.50 1130.50 656.00 k 812.00 275.00 112.00 35.50 4567.10
1926 10.85 a 48.00 101.00 251.50 672.50 832.50 1042.00 1069.50 696.67 c 474.50 83.50 33.00 5315.52
1927 43.50 56.50 63.00 331.00 697.50 760.50 1000.00 876.00 782.00 506.50 141.50 9.30 a 5267.30
1928 50.50 17.00 131.50 214.50 572.50 632.50 987.50 969.00 701.00 400.50 90.50 18.50 4785.50
1929 0.00 0.50 92.00 293.00 500.50 791.50 1111.50 1076.50 612.50 439.00 10.50 83.00 5010.50
1930 3.00 123.50 0.00 z 428.50 517.50 791.79 b 1102.00 1035.83 b 767.00 366.00 105.50 0.00 5240.61
1931 12.00 19.50 88.00 262.50 479.00 962.00 1150.50 986.50 902.50 497.50 161.00 27.00 5548.00
1932 2.00 108.00 88.50 374.00 668.50 873.00 1149.14 b 1094.00 732.50 361.50 121.03 a 22.45 b 5594.62
1933 9.00 23.15 b 151.50 275.50 496.00 f 1059.00 925.50 f 966.68 a 837.00 469.00 145.50 102.00 4038.34
1934 31.00 86.50 169.00 406.07 b 841.65 a 990.00 1256.00 1128.50 683.00 555.00 197.00 22.73 a 6366.46
1935 59.50 64.50 201.00 269.50 403.00 829.50 1180.14 b 1110.50 751.50 429.00 50.00 6.20 a 5354.34
1936 17.50 54.50 142.60 a 387.00 710.93 a 993.50 1230.50 1083.34 c 782.50 275.38 a 51.60 e 15.50 5744.86
1937 0.00 25.50 53.50 289.50 637.05 a 854.00 1164.05 a 1193.00 845.00 450.00 92.14 b 8.50 5612.24
1938 20.50 81.50 192.50 363.50 555.00 864.00 1065.00 1138.00 828.33 c 616.00 88.50 28.00 5840.83
1939 16.00 0.00 169.00 353.00 724.00 892.50 1168.50 1039.00 898.00 449.00 110.50 155.00 5974.50
1940 0.50 40.00 138.50 326.00 620.00 920.00 1145.00 989.93 a 809.00 538.50 103.50 69.50 5700.43
1941 10.50 17.00 102.00 271.50 687.00 810.50 1057.62 a 1049.00 729.50 418.50 178.97 a 69.50 5401.58
1942 1.00 2.00 79.00 401.50 573.00 829.00 1100.50 1018.02 c 677.50 444.50 181.67 c 23.50 g 5307.68
1943 51.50 92.00 157.58 a 471.43 b 478.50 857.00 1130.50 1152.00 740.00 404.00 149.00 6.50 5690.01
1944 25.50 13.50 44.50 147.00 675.50 874.50 1042.00 1034.50 756.50 469.00 130.00 4.00 5216.50
1945 16.00 38.50 211.50 226.50 547.50 678.50 1050.00 1038.00 725.50 473.78 a 176.50 15.00 5197.28
1946 14.00 45.50 217.50 514.00 107.00 w 514.50 n 1124.50 1005.00 763.50 344.00 13.50 72.50 4114.00
1947 15.50 26.00 79.50 218.50 526.50 746.00 1092.50 1145.00 878.50 375.00 j 25.00 18.50 4771.50
1948 26.00 31.50 65.44 d 445.00 631.00 841.00 1052.50 1038.50 a 852.93 a 419.07 d 78.00 e 14.31 e 5495.26
1949 0.50 f 24.08 c 90.70 d 350.00 612.77 a 851.50 1093.50 982.18 a 717.12 d 337.38 a 221.00 30.00 5310.23
1950 40.50 78.50 104.50 279.31 a 485.00 904.00 947.50 886.50 652.50 553.50 98.00 43.50 5073.31
1951 21.91 b 56.50 64.07 a 203.50 593.65 a 658.00 998.50 978.50 661.50 341.00 52.50 23.50 4653.13
1952 22.50 26.50 63.00 267.00 541.50 1072.00 1087.50 1074.00 794.00 377.00 92.00 0.50 5417.50
1953 84.50 31.00 171.00 218.50 501.00 1016.00 1085.50 972.00 812.00 475.50 140.00 3.50 5510.50
1954 30.50 146.50 85.00 447.50 526.00 1013.50 1236.50 1088.62 a 903.00 400.13 d 184.00 46.00 6107.25
1955 0.00 17.50 129.50 385.50 667.00 729.11 b 1176.00 1115.00 783.00 501.50 80.00 54.00 5638.11
1956 37.50 13.00 166.50 217.00 703.00 1020.50 997.50 943.50 773.00 509.00 64.14 a 43.92 a 5488.55
1957 0.00 b 53.50 57.50 226.00 459.00 805.00 1115.00 996.00 622.00 318.00 46.50 34.50 4733.00
1958 15.00 65.50 10.00 216.50 667.50 832.00 890.00 1022.50 796.00 417.98 a 0.00 z 43.50 4976.48
1959 20.50 2.50 101.00 333.50 562.50 947.00 1037.50 1091.50 691.50 305.00 89.48 a 30.50 5212.48
1960 7.50 0.00 107.50 351.50 556.50 824.00 1051.00 1088.50 786.00 454.00 134.50 25.50 5386.50
1961 15.00 66.50 118.50 228.50 507.50 881.50 1067.00 1010.50 536.90 a 367.00 59.50 24.50 4882.90
1962 29.00 117.50 87.50 357.41 a 0.00 z 0.00 z 1056.50 1068.50 713.50 508.50 0.00 z 82.00 4020.41
1963 13.00 87.00 0.00 z 397.50 732.00 991.50 1255.00 1087.50 860.00 700.50 152.50 24.11 d 6300.61
1964 39.50 1.00 77.50 a 310.00 663.50 854.50 1197.00 992.50 770.69 a 456.00 156.50 47.00 5565.69
1965 48.00 53.50 38.00 424.00 692.00 819.50 1091.00 963.50 481.50 535.27 a 187.50 73.50 5407.27
1966 14.50 5.00 236.00 288.00 692.00 870.50 1185.00 940.50 731.38 a 429.50 152.50 45.00 5589.88
1967 72.00 44.00 254.50 335.50 512.50 825.52 a 1034.37 a 949.00 714.50 472.00 127.00 5.50 5346.38
1968 43.00 31.00 200.00 265.00 470.50 965.50 1036.50 954.00 698.50 517.00 90.00 21.00 5292.00
1969 21.50 21.00 65.50 387.00 635.00 762.00 1121.88 b 1048.50 786.00 229.50 115.00 29.50 5222.38
1970 44.00 44.00 47.50 240.00 689.00 862.50 1123.00 1135.50 674.00 284.50 114.50 25.00 5283.50
1971 42.00 35.50 143.12 a 318.50 524.00 960.50 983.50 1036.00 698.00 449.00 98.00 38.50 5326.62
1972 29.97 a 69.00 242.50 0.00 z 605.02 a 923.00 1000.00 941.00 743.50 0.00 z 33.00 18.00 4604.98
1973 37.00 24.00 0.00 z 234.00 551.28 a 882.00 1025.07 a 1112.00 629.00 521.00 120.52 a 42.50 5178.37
1974 22.50 68.50 241.50 362.50 725.50 898.00 1166.50 915.00 644.00 494.50 100.50 0.00 z 5639.00
1975 15.00 16.50 0.00 z 337.00 572.98 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 48.05 a 989.53
1976 42.00 140.00 135.50 348.00 573.50 891.50 0.00 z 1045.73 a 710.36 b 287.27 a 127.00 40.41 c 4341.27
1977 0.00 a 63.00 117.80 a 412.76 a 472.50 k 0.00 z 1140.59 b 1033.50 893.04 b 0.00 z 0.00 z 0.00 z 3660.68
1978 2.30 d 4.50 0.00 z 375.00 c 606.57 a 923.50 1142.72 b 950.00 808.00 399.79 b 102.00 6.50 g 5314.38
1979 0.00 b 39.50 111.08 a 302.78 c 525.00 875.19 d 1097.73 c 949.78 b 645.50 f 452.82 c 28.97 a 71.50 4454.35
1980 6.20 a 62.83 b 48.00 263.50 534.00 987.93 a 1210.00 1109.50 821.00 433.50 168.00 g 93.00 e 5569.46
1981 36.68 a 113.50 97.50 500.50 521.50 931.50 1086.03 a 991.00 830.50 397.00 199.29 b 46.00 5751.00
1982 16.00 101.00 137.50 259.00 553.50 732.50 1073.50 1073.50 741.00 376.00 58.00 32.50 5154.00
1983 4.50 50.50 106.00 197.00 454.50 774.00 1128.50 1186.00 803.00 410.50 155.50 0.00 5270.00
1984 19.00 22.50 25.50 119.50 604.50 854.50 1090.50 1093.50 717.00 305.50 105.50 52.00 5009.50
1985 6.50 25.50 144.00 405.00 660.50 897.00 1082.00 1026.00 676.00 372.00 76.11 c 9.00 5379.61
1986 107.00 110.00 259.00 367.50 615.50 937.00 1137.00 1024.50 740.00 402.00 107.00 2.50 5809.00
1987 57.00 61.00 114.50 380.00 667.50 917.00 1111.50 975.50 733.00 400.50 138.50 62.50 5618.50
1988 20.50 47.64 a 141.00 318.50 640.50 993.50 1097.00 1091.00 713.00 422.50 141.00 47.00 5673.14
1989 48.00 35.00 231.00 427.00 0.00 z 0.00 z 0.00 z 993.07 b 334.50 p 404.50 133.00 33.50 k 2271.57
1990 29.50 14.00 107.47 a 319.50 336.00 h 1011.50 1033.00 1026.00 837.50 379.23 a 146.50 j 31.00 4788.70
1991 7.00 80.50 138.90 e 329.00 693.00 611.00 k 1068.00 990.50 733.50 419.50 53.08 d 12.50 4525.48
1992 5.00 72.50 120.50 l 390.00 624.00 752.00 962.00 871.00 767.50 420.00 33.50 0.00 4897.50
1993 0.00 2.00 131.00 235.00 572.50 810.50 986.50 955.00 588.50 376.50 32.00 43.50 4733.00
1994 21.50 17.50 195.00 292.50 670.00 995.50 1011.50 1077.50 796.50 395.00 73.00 45.00 5590.50
1995 25.00 103.50 197.00 187.00 332.50 770.00 1032.00 1120.50 710.50 346.50 158.50 54.50 5037.50
1996 29.50 115.50 74.00 284.00 669.00 1075.50 710.00 k 954.50 645.00 393.50 58.00 65.50 4364.00
1997 57.00 37.00 182.00 222.00 520.28 a 869.50 1096.00 977.00 771.50 399.50 41.50 0.00 5173.28
1998 12.00 20.50 135.00 240.00 a 722.82 a 788.50 1114.50 1000.00 899.50 410.50 153.62 a 60.00 5556.94
1999 21.50 69.48 a 143.12 a 217.50 538.00 816.21 a 1151.28 b 743.50 i 632.59 a 411.50 280.18 b 33.14 b 4314.48
2000 24.00 106.50 121.86 b 340.50 662.37 a 593.00 j 1150.00 1153.50 763.33 c 417.00 18.10 a 4.00 4761.17
2001 10.50 7.28 c 72.00 i 381.21 a 602.50 970.50 1246.00 1098.29 c 798.00 398.50 219.50 25.00 5757.27
2002 45.00 40.00 73.50 376.00 593.00 1068.50 1202.50 1090.00 743.00 277.50 93.50 29.00 5631.50
2003 38.50 25.00 181.50 408.00 586.00 802.50 1233.00 1164.50 677.50 534.50 78.00 35.00 5764.00
2004 26.00 39.50 168.00 i 328.50 693.00 824.50 999.50 933.50 805.50 405.50 105.00 35.50 5196.00
2005 64.00 57.00 137.50 343.00 639.50 913.50 1192.50 1070.50 878.50 450.00 191.00 48.50 5985.50
2006 76.50 35.50 109.00 f 400.50 716.58 e 227.00 w 763.50 k 1017.00 403.50 i 115.00 l 139.50 28.50 2414.08
2007 0.00 h 0.00 225.78 a 120.50 l 613.00 573.00 k 799.00 g 1098.50 558.50 i 303.50 k 166.50 21.91 b 2125.70
2008 9.54 e 12.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 62.50 z 674.50 403.00 161.00 23.50 1283.54
2009 70.50 82.50 161.00 240.00 575.50 817.00 993.00 953.50 648.50 178.00 156.00 11.00 4886.50
2010 13.50 1.50 104.50 289.00 479.00 912.50 1075.00 1051.50 813.50 476.00 129.00 35.50 5380.50
2011 22.00 48.00 126.00 280.00 472.00 889.00 1170.00 1118.00 683.00 433.50 107.59 a 18.50 5367.59
2012 35.50 14.50 348.50 428.50 685.00 1044.00 1213.00 1033.50 781.50 349.00 213.00 53.50 6199.50
2013 22.50 12.00 94.50 6.00 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 129.00
Period of Record Statistics
MEAN 23.91 44.56 131.13 307.69 585.48 875.62 1088.35 1030.97 745.68 414.11 117.18 32.32 5365.69
S.D. 21.51 34.68 71.61 83.16 92.62 97.02 81.21 73.81 84.93 86.18 54.29 25.98 374.39
SKEW 1.28 0.83 0.75 0.06 -0.19 0.02 -0.13 0.00 -0.36 0.13 0.25 1.40 0.11
MAX 107.00 146.50 363.14 514.00 841.65 1075.50 1256.00 1193.00 903.00 700.50 280.18 155.00 6366.46
MIN 0.00 0.00 7.00 119.50 332.50 632.50 890.00 871.00 481.50 178.00 10.50 0.00 4600.97
NO YRS 107 109 99 103 100 95 98 103 101 101 102 104 70