GATEWAY, COLORADO

Monthly Total Growing Degree Days

(053246)

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
1947 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
1948 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
1949 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
1950 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
1951 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
1952 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
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 0.00 z 0.00
1954 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
1955 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
1956 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 442.00 o 394.50 g 29.00 g 11.37 a 11.37
1957 11.50 63.26 a 203.29 e 231.50 h 531.59 d 651.00 g 822.50 h 824.00 g 598.50 f 479.98 a 74.44 c 7.48 b 1371.55
1958 0.00 d 75.50 h 117.11 d 322.24 a 735.22 a 997.80 e 1218.96 c 530.00 q 850.20 e 505.30 a 149.00 2.50 l 4895.83
1959 0.50 48.22 a 189.50 461.38 a 775.53 b 1112.68 b 1246.00 1068.93 d 783.10 a 441.48 b 67.76 a 0.00 6195.09
1960 0.00 c 2.59 a 228.37 a 434.50 658.23 a 966.43 b 823.50 i 1121.88 b 895.38 d 449.50 158.00 5.00 4919.88
1961 5.17 a 59.23 b 166.50 380.00 685.88 c 1070.17 a 1170.77 a 1107.45 b 619.00 419.00 63.00 5.54 c 5751.70
1962 4.50 76.22 a 99.00 512.07 a 684.58 a 925.50 1118.14 b 1109.28 a 832.50 d 538.62 c 173.04 b 9.30 a 6082.76
1963 5.00 67.76 c 163.30 c 351.21 a 786.62 c 890.36 b 1179.07 b 1045.73 a 862.78 c 622.77 c 155.36 b 0.00 b 6129.96
1964 5.50 0.58 d 60.45 a 337.00 498.00 h 888.00 1259.24 b 575.50 m 811.61 b 577.78 b 101.38 a 26.41 d 4067.94
1965 21.70 a 57.68 c 124.53 b 371.00 571.29 c 793.20 e 853.00 f 800.00 g 658.39 b 485.48 c 248.04 b 11.37 a 3342.68
1966 0.00 0.52 a 220.62 a 383.89 c 779.43 c 956.11 c 1185.75 a 1118.14 b 826.67 c 419.03 b 190.18 b 54.50 6134.83
1967 27.00 64.30 a 321.76 b 378.33 c 631.33 e 782.68 b 1153.64 c 1111.02 c 668.50 f 526.45 c 156.21 a 0.00 a 5152.71
1968 5.50 71.94 c 188.07 a 266.00 619.48 a 937.78 c 1103.08 a 905.72 a 708.75 b 487.00 84.00 0.00 a 5377.32
1969 33.00 16.50 110.57 a 438.62 a 775.00 b 793.45 a 1151.81 b 1145.93 b 856.00 258.33 a 81.72 a 31.53 b 5692.47
1970 27.79 b 69.46 b 79.71 c 220.34 a 703.18 a 867.50 1160.29 c 1166.50 736.00 320.16 b 124.29 b 20.50 5495.72
1971 24.00 36.40 c 214.93 a 362.22 c 620.53 b 980.69 a 992.00 f 1168.70 a 498.00 g 406.32 c 49.00 33.30 d 3896.10
1972 37.50 118.07 a 348.75 c 436.55 a 658.75 e 949.29 b 951.00 f 1082.93 a 761.50 440.20 a 38.57 b 0.00 z 4872.11
1973 0.00 9.33 a 60.97 a 223.97 a 0.00 z 750.56 c 1057.74 b 1048.32 a 540.50 i 437.58 e 166.00 6.00 3760.46
1974 0.00 0.00 220.00 256.61 b 759.00 959.00 1062.27 a 963.00 711.72 a 412.09 b 22.00 1.00 5366.68
1975 11.00 9.52 c 137.50 223.45 a 488.85 e 712.50 b 1029.50 909.85 a 684.64 b 407.98 c 108.00 5.50 4728.29
1976 0.00 a 94.50 129.68 a 430.56 c 649.34 c 885.50 1161.98 a 1009.05 a 791.38 a 332.00 87.50 h 0.00 g 5483.99
1977 0.00 19.70 a 67.50 401.79 b 539.50 966.67 c 1012.67 a 1066.92 a 856.07 b 474.09 b 142.00 62.00 a 5608.90
1978 0.50 26.50 284.68 a 402.93 a 562.65 a 916.00 1151.65 a 1074.50 754.66 a 430.90 a 147.41 a 3.00 5755.38
1979 0.00 3.50 107.47 a 369.44 c 0.00 z 884.00 1112.00 1031.78 a 901.61 b 542.50 d 30.00 0.00 a 4982.30
1980 20.50 64.21 a 71.00 327.41 a 496.00 a 878.50 1082.93 a 979.60 a 778.93 b 386.00 161.90 a 51.67 a 5298.65
1981 8.00 48.00 137.50 513.62 a 618.45 a 1039.66 a 1124.50 1043.50 855.54 b 426.50 196.50 9.00 6020.76
1982 9.50 76.50 183.50 338.50 627.50 849.50 1143.00 1085.50 775.00 355.00 72.50 1.50 5517.50
1983 3.50 40.50 140.00 247.00 512.00 813.00 1104.00 1109.00 868.50 480.50 154.50 0.00 5472.50
1984 0.00 3.00 96.00 249.50 741.00 839.50 1167.50 1148.50 860.00 347.50 121.00 7.00 5580.50
1985 0.00 16.50 203.50 479.00 794.00 1026.00 1198.00 1173.50 745.00 490.50 124.00 8.50 6258.50
1986 29.50 162.00 325.50 272.00 j 672.50 1069.50 1084.45 c 762.00 k 741.00 397.50 114.50 14.50 4610.95
1987 5.00 25.50 83.00 498.00 701.50 1008.00 1117.50 648.50 k 829.50 342.50 k 123.50 7.00 4398.50
1988 0.00 25.50 171.00 421.50 693.00 1078.50 801.00 j 478.00 r 441.50 m 429.00 k 184.00 0.00 2573.50
1989 0.00 62.00 369.00 580.00 787.00 499.00 m 711.50 m 653.00 l 276.50 u 0.00 z 156.50 3.00 1957.50
1990 12.50 66.00 331.50 548.00 672.91 b 1086.00 423.00 t 431.50 t 0.00 z 186.00 q 127.00 1.50 2845.41
1991 0.00 29.50 149.00 350.50 718.50 967.00 664.50 n 624.50 n 302.00 s 92.00 v 113.50 0.00 2328.00
1992 0.00 45.50 279.00 640.50 801.50 941.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2708.00
1993 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 823.39 b 168.50 l 31.50 4.00 858.89
1994 4.50 46.00 279.50 434.50 773.50 1096.03 a 832.00 j 746.00 l 504.50 l 201.00 m 124.50 24.00 2782.53
1995 35.50 147.50 267.50 371.00 562.50 825.50 717.50 l 430.00 s 161.00 v 169.50 r 188.50 72.00 2470.00
1996 10.00 100.50 221.50 405.50 793.50 1005.50 692.00 m 1149.00 437.50 k 52.00 s 114.50 40.00 3840.00
1997 16.00 16.00 289.00 287.00 704.50 984.00 1136.50 779.00 i 839.00 310.00 i 72.00 j 0.00 4272.00
1998 16.50 38.00 176.00 301.50 689.00 877.50 1211.00 1161.50 962.00 507.50 159.00 22.00 6121.50
1999 45.50 70.50 362.00 335.50 640.50 927.00 1159.92 a 999.00 731.50 484.50 218.50 16.50 5990.92
2000 50.50 91.50 175.00 555.50 817.00 975.00 c 1191.00 1144.50 834.00 479.50 16.50 2.50 6332.50
2001 1.50 48.50 228.00 477.50 792.50 1029.50 1183.50 1095.00 887.00 518.50 215.00 10.50 6487.00
2002 6.50 10.50 206.00 575.50 730.00 1055.00 1261.00 1082.50 802.50 389.00 52.00 6.50 6177.00
2003 18.50 44.00 213.00 436.00 729.50 947.00 1288.00 1170.00 788.50 621.00 121.50 19.00 6396.00
2004 0.00 44.50 358.00 465.50 756.50 959.50 1156.50 1061.00 784.00 464.50 85.00 5.50 6140.50
2005 52.50 41.50 158.00 430.50 707.00 863.50 1183.50 1038.50 806.00 494.00 160.50 11.00 5946.50
2006 15.50 38.50 186.50 485.00 768.50 1026.00 1188.00 1059.00 663.00 393.00 137.50 2.50 5963.00
2007 0.50 82.50 301.50 447.50 708.00 983.50 1247.50 1137.00 816.00 424.50 193.50 7.00 6349.00
2008 0.00 14.00 147.50 334.50 610.00 928.00 1232.50 1104.50 793.00 475.00 144.00 12.00 5795.00
2009 6.50 57.50 246.50 395.50 789.50 875.50 1196.50 1076.00 848.00 365.50 174.50 0.00 6031.50
2010 0.50 0.50 149.00 422.50 639.00 1002.50 1208.00 1068.50 866.50 516.50 124.50 46.00 6044.00
2011 1.55 a 26.96 a 226.00 360.00 a 567.00 952.50 1123.00 1168.70 a 826.00 426.00 85.00 0.50 5763.21
2012 5.68 a 14.50 297.00 501.00 765.18 a 1069.00 1201.00 1165.00 816.50 499.50 178.50 38.00 6550.87
2013 1.50 1.50 225.50 21.50 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 228.50
Period of Record Statistics
MEAN 10.68 45.74 198.16 399.61 684.52 942.73 1160.09 1084.75 800.96 452.37 126.48 13.90 5895.64
S.D. 13.93 36.30 84.31 97.29 89.13 93.56 62.45 68.05 70.38 74.52 54.13 17.56 399.10
SKEW 1.48 1.00 0.30 0.13 -0.50 -0.30 -0.26 -0.83 -0.49 -0.03 -0.19 1.66 -0.70
MAX 52.50 162.00 369.00 640.50 817.00 1112.68 1288.00 1173.50 962.00 622.77 248.04 72.00 6550.87
MIN 0.00 0.00 60.45 220.34 488.85 712.50 1012.67 905.72 619.00 258.33 16.50 0.00 4728.29
NO YRS 56 55 56 53 52 53 42 41 44 45 53 53 33