JOHN MARTIN DAM, COLORADO

Monthly Total Growing Degree Days

(054388)

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
1941 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1089.50 796.00 481.50 168.00 37.00 2572.00
1942 8.50 5.00 78.50 405.50 656.00 863.50 1119.00 1047.00 722.50 417.50 164.00 11.50 5498.50
1943 41.50 72.00 159.50 510.00 540.50 992.00 1206.50 1217.00 778.00 387.00 93.50 0.00 5997.50
1944 18.00 29.50 74.00 202.50 679.50 960.00 1079.50 1120.00 828.00 474.00 174.00 2.00 5641.00
1945 9.50 27.00 232.00 284.00 653.50 800.00 1159.00 1110.00 762.00 483.50 164.50 14.50 5699.50
1946 32.50 91.00 290.00 588.50 572.00 995.50 1181.50 1079.50 823.00 416.50 9.00 64.00 6143.00
1947 11.50 14.00 131.00 321.50 618.50 875.50 1170.00 1203.50 939.00 633.50 30.00 9.30 a 5957.30
1948 25.00 35.00 133.50 557.00 733.00 953.00 1162.50 1127.00 943.97 a 495.48 a 77.50 32.50 6275.45
1949 5.00 36.00 146.00 442.00 759.50 937.50 1186.00 1095.00 847.50 471.20 a 297.00 24.50 6247.20
1950 44.43 a 94.37 a 146.00 371.00 673.00 1040.36 b 1049.00 1013.18 a 768.50 658.23 a 113.00 30.00 6001.08
1951 24.00 65.50 91.50 294.00 706.50 796.50 1221.50 1152.68 a 802.50 d 466.00 78.00 53.00 5751.68
1952 54.50 59.50 114.00 392.50 712.50 1233.50 1255.00 1186.00 879.00 449.50 104.50 6.00 6446.50
1953 102.50 48.50 266.00 302.00 654.00 1141.50 1298.00 1151.50 916.50 552.50 126.50 1.50 6561.00
1954 19.00 160.50 131.00 522.50 655.00 1139.00 1299.50 1163.50 988.00 479.50 151.00 37.00 6745.50
1955 3.00 20.50 195.00 454.00 756.50 935.00 1292.00 1156.50 865.00 515.50 64.50 43.00 6300.50
1956 31.50 29.52 a 243.00 365.00 839.50 1151.00 1155.50 1086.50 895.00 543.00 56.50 11.00 6407.02
1957 2.00 114.50 157.00 323.50 626.72 a 934.50 1218.00 1157.00 764.50 501.00 101.50 85.00 5985.22
1958 14.50 79.50 36.00 334.00 852.00 1061.38 a 1121.50 1175.50 924.50 511.50 161.50 17.50 6289.38
1959 3.50 19.50 168.50 416.50 790.50 1068.50 1135.50 1164.50 793.00 408.00 117.50 21.50 6107.00
1960 4.50 0.00 169.50 543.00 707.50 1000.00 1120.50 1180.00 860.50 503.50 156.50 16.00 6261.50
1961 0.50 86.50 166.50 372.00 740.50 962.50 1110.50 1107.50 721.00 468.50 83.00 25.50 5844.50
1962 9.50 149.00 131.00 504.00 872.00 937.50 1148.50 1158.50 825.00 565.50 153.50 49.00 6503.00
1963 3.50 112.50 252.00 516.00 842.00 1095.50 1295.50 1152.00 970.00 733.00 157.00 6.00 7135.00
1964 41.50 5.00 107.50 394.00 788.50 988.00 1293.50 1132.00 843.00 485.50 153.00 52.00 6283.50
1965 64.00 59.00 63.00 535.00 778.00 933.50 1202.50 1045.00 724.00 561.00 239.50 52.50 6257.00
1966 4.50 1.00 270.50 405.50 779.50 1045.00 1317.00 1067.00 845.50 499.50 155.50 29.00 6419.50
1967 60.50 76.50 355.00 596.00 672.50 952.50 1175.50 1070.00 827.50 609.50 165.00 22.50 6583.00
1968 28.42 a 51.00 207.00 341.50 544.50 1021.50 1127.00 1035.50 772.50 495.50 99.00 9.50 5732.92
1969 31.50 31.50 64.00 493.00 748.00 845.00 1206.00 1168.00 834.00 284.50 135.00 15.50 5856.00
1970 24.50 55.50 53.50 311.00 762.50 919.00 1172.50 1180.50 734.50 301.50 89.50 35.00 5639.50
1971 26.50 49.00 171.00 386.00 604.50 1051.00 1087.00 1064.50 672.00 442.00 103.50 30.50 5687.50
1972 11.50 73.50 277.00 436.00 683.50 1026.50 1123.00 1077.50 784.50 446.50 28.00 0.00 5967.50
1973 7.00 18.00 130.09 c 250.00 599.50 0.00 z 0.00 z 0.00 z 682.50 486.50 139.29 b 33.14 b 2346.01
1974 2.50 42.54 b 285.50 503.50 871.00 1039.00 1300.50 1059.50 755.00 590.50 167.78 c 9.00 j 6617.32
1975 10.00 h 34.50 i 144.50 g 388.00 717.50 960.00 1178.50 1179.50 826.55 a 546.63 a 112.00 k 49.60 a 5846.29
1976 34.21 b 173.00 226.50 506.00 682.00 987.50 1212.00 1120.50 847.00 392.50 104.00 f 4.59 d 6185.80
1977 0.00 b 71.12 c 181.02 c 494.50 806.00 1057.50 1278.00 1154.50 968.00 542.50 143.00 0.00 z 6696.14
1978 3.50 k 10.50 j 179.00 k 541.15 d 676.00 1022.00 1288.64 b 1098.50 624.00 i 275.00 n 76.50 l 18.00 o 4626.29
1979 0.00 j 51.00 j 151.50 m 503.08 d 657.72 a 995.00 1237.50 1120.50 938.50 638.37 d 26.00 k 28.50 m 6090.66
1980 0.00 z 46.50 j 88.00 m 249.00 h 650.50 1104.00 1337.00 1263.00 907.80 e 302.50 k 81.00 n 78.00 n 5262.30
1981 15.50 k 104.00 j 130.00 l 657.00 728.00 1143.00 1232.50 1098.00 897.00 e 330.50 k 146.50 k 22.00 m 5755.50
1982 32.00 k 38.50 k 200.50 418.50 440.50 k 850.96 d 783.50 j 111.50 z 260.00 u 250.00 k 44.00 j 18.00 j 1469.96
1983 3.00 j 22.00 i 53.00 z 79.50 z 473.00 f 625.50 g 794.00 k 932.50 h 592.00 i 246.50 m 127.00 j 0.50 j 0.00
1984 0.00 j 20.50 i 50.00 i 237.78 c 723.85 a 988.97 a 1194.02 a 1138.45 b 585.00 i 230.50 j 75.50 l 14.00 o 4283.06
1985 0.00 i 19.50 n 154.50 j 393.00 g 571.50 g 664.50 h 823.50 i 865.50 g 557.50 k 233.50 k 53.00 m 0.00 k 0.00
1986 60.50 j 96.50 i 194.00 j 519.64 b 489.00 k 696.50 i 768.00 k 727.00 j 776.00 345.00 j 69.50 o 0.00 j 1295.64
1987 40.50 k 53.00 i 72.50 l 254.00 k 442.50 m 576.50 m 751.50 l 734.00 j 496.50 k 304.00 j 112.00 k 29.50 j 0.00
1988 0.00 o 30.50 i 147.50 198.00 m 423.00 m 683.50 k 766.00 k 1178.00 535.50 i 274.50 l 130.50 j 8.50 k 1325.50
1989 4.00 l 3.00 j 296.00 432.50 719.00 849.50 1164.50 1063.50 714.50 447.00 143.00 12.50 5842.00
1990 14.00 20.00 144.50 400.50 547.50 1030.00 1081.50 1032.00 883.00 386.00 174.50 16.00 5729.50
1991 0.00 35.00 155.00 341.50 710.00 1021.50 1100.00 0.00 z 530.00 j 374.50 i 29.00 l 0.00 l 3363.00
1992 7.00 52.50 221.00 440.50 721.50 847.22 c 781.00 i 555.50 j 578.50 i 292.00 j 29.50 k 0.00 l 2289.72
1993 0.00 o 0.00 k 162.48 b 346.03 a 380.00 m 954.00 1116.00 1033.00 616.00 411.78 a 26.38 a 11.37 a 4677.05
1994 8.50 i 16.50 202.00 255.00 l 511.00 j 1054.50 697.00 k 1130.50 538.00 i 275.00 m 80.00 m 23.00 j 2403.50
1995 21.50 m 80.00 j 244.38 a 169.50 l 340.00 j 878.50 1060.50 1191.50 479.50 k 214.50 n 82.50 k 24.50 o 3374.88
1996 12.00 n 58.50 j 62.00 l 399.64 b 531.50 j 676.00 j 749.50 i 722.50 i 460.50 k 285.00 j 78.50 l 61.00 460.64
1997 42.50 65.50 249.50 274.00 684.00 1002.00 1233.00 1092.00 872.50 458.00 76.50 0.00 6049.50
1998 11.50 45.00 156.50 305.00 809.50 932.00 1197.00 1054.00 961.55 a 500.00 155.50 55.50 6183.05
1999 26.50 106.00 178.50 331.50 635.00 918.50 1204.00 1117.00 731.00 424.00 235.50 23.50 5931.00
2000 15.00 83.50 165.50 449.46 b 785.69 b 1015.96 d 1212.50 1257.00 881.00 578.87 e 33.21 b 0.00 a 6477.69
2001 3.50 13.50 125.03 a 430.50 652.55 a 973.93 b 1313.22 b 1168.91 b 822.00 e 421.00 186.00 26.00 6136.15
2002 29.00 33.50 107.50 467.00 743.50 1176.50 1288.00 1172.50 840.00 374.00 125.00 24.50 6381.00
2003 37.50 42.50 231.50 479.00 744.00 908.50 1320.50 1225.50 769.00 591.38 e 100.00 g 40.00 6389.38
2004 28.50 57.50 334.50 415.00 836.50 942.00 1078.00 988.50 894.00 507.00 108.00 35.50 6225.00
2005 57.00 45.50 168.00 390.50 696.00 1021.11 c 1261.00 1150.50 966.00 507.00 191.00 44.00 6497.61
2006 75.50 47.48 e 206.00 521.50 796.00 1117.00 1226.50 1121.00 678.50 398.00 171.50 29.00 6387.98
2007 0.00 a 0.00 310.00 325.00 713.50 905.56 c 1187.76 d 1270.50 934.50 507.50 182.50 30.50 6367.31
2008 14.00 32.00 164.50 340.00 712.00 1022.50 1262.00 1105.00 819.00 451.00 179.00 23.00 6124.00
2009 61.50 65.50 224.50 354.50 696.00 967.50 1190.00 1081.00 748.50 250.50 168.50 5.00 5813.00
2010 7.50 0.00 137.00 412.00 667.50 1124.00 1201.50 1171.50 963.00 546.50 116.50 33.00 6380.00
2011 11.88 a 48.00 188.00 452.50 669.00 1082.50 1314.00 1274.00 810.00 482.50 141.00 0.52 a 6473.90
2012 8.78 a 35.00 383.00 526.00 788.50 1172.50 1345.00 1182.81 b 873.00 417.00 209.50 55.00 6996.09
2013 10.00 21.50 165.50 14.00 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 197.00
Period of Record Statistics
MEAN 23.02 52.18 183.14 418.32 712.16 995.64 1201.70 1130.57 830.43 484.16 132.89 26.49 6178.25
S.D. 21.98 39.04 75.15 95.56 79.03 95.50 77.23 63.79 86.43 88.42 57.33 19.56 353.16
SKEW 1.38 1.13 0.45 0.07 -0.04 0.15 -0.01 0.15 -0.15 0.04 0.02 0.61 0.33
MAX 102.50 173.00 383.00 657.00 872.00 1233.50 1345.00 1274.00 988.00 733.00 297.00 85.00 7135.00
MIN 0.00 0.00 36.00 202.50 540.50 796.50 1049.00 988.50 616.00 250.50 9.00 0.00 5498.50
NO YRS 55 56 61 64 61 64 61 63 60 57 53 55 47