GREELEY, COLORADO

Monthly Total Growing Degree Days

(053546)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 196702
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
1893 41.16 b 11.08 d 52.91 b 172.20 e 23.00 z 537.00 m 1057.44 d 202.50 w 459.50 h 305.19 b 62.40 e 32.60 b 1734.99
1894 5.50 z 0.00 b 65.50 f 195.00 g 210.50 s 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1895 0.00 z 0.00 z 0.00 z 168.50 r 490.63 e 681.11 c 865.62 e 885.71 c 612.86 b 207.18 a 24.23 d 0.00 c 3767.35
1896 0.00 b 0.00 89.00 277.76 a 573.00 842.07 a 935.54 c 919.00 548.00 169.43 b 26.90 a 2.14 b 4382.83
1897 0.00 a 0.50 50.50 255.00 625.17 a 743.50 878.00 857.15 a 721.61 b 331.00 81.00 7.50 4550.92
1898 0.00 b 12.00 21.00 0.00 z 448.50 805.34 a 939.50 955.00 588.75 b 212.50 24.50 0.00 4007.09
1899 0.00 a 0.00 24.00 262.50 488.50 900.00 b 0.00 z 917.50 0.00 z 241.50 78.00 6.50 2918.50
1900 5.50 2.50 106.50 200.50 607.50 870.50 938.27 a 949.50 625.50 380.00 77.50 18.48 e 4782.25
1901 3.00 11.00 73.00 239.50 585.50 745.00 1087.00 1009.50 648.50 368.00 83.50 5.17 a 4858.67
1902 1.50 22.00 25.50 280.00 573.50 832.50 913.50 999.50 613.50 319.50 72.50 0.00 c 4653.50
1903 8.00 0.00 a 57.57 c 270.50 463.00 673.27 d 983.50 955.50 580.71 b 328.94 d 54.50 11.50 4387.00
1904 0.00 78.50 125.07 b 277.00 527.00 684.00 903.50 931.00 675.50 346.50 76.50 15.00 4639.57
1905 2.00 8.62 b 147.00 216.50 449.50 835.00 909.00 950.50 725.00 227.00 67.50 0.00 4537.62
1906 9.50 19.50 32.00 323.50 536.00 720.00 880.00 907.50 498.50 f 250.50 k 101.50 29.28 d 3558.78
1907 0.00 z 0.00 z 207.50 0.00 z 407.28 b 433.00 l 0.00 z 0.00 z 646.50 365.50 46.50 g 0.00 z 1626.78
1908 0.00 z 11.00 137.00 337.00 469.50 728.00 902.00 879.00 694.50 281.00 62.00 0.00 4501.00
1909 3.50 3.00 40.50 184.50 469.00 815.00 1042.50 1047.00 656.50 362.50 126.00 2.00 4752.00
1910 9.00 16.00 270.50 398.50 488.00 855.54 b 1057.88 c 946.03 b 708.00 393.50 97.50 2.50 5242.95
1911 26.50 16.50 147.50 302.00 577.50 912.00 926.50 902.00 710.00 266.00 28.50 0.50 4815.50
1912 10.00 2.00 7.50 218.00 524.50 697.50 930.50 889.50 427.00 264.00 39.50 0.00 z 4010.00
1913 5.00 3.00 73.00 284.00 589.00 823.50 946.50 1006.00 505.50 g 259.50 98.50 0.00 4088.00
1914 8.50 0.00 76.95 c 258.62 a 566.55 b 838.45 a 0.00 z 0.00 z 684.31 a 403.52 a 110.50 0.00 a 2947.39
1915 2.00 0.00 z 18.94 d 415.86 a 512.02 a 761.90 a 0.00 z 864.79 b 652.00 343.50 128.00 0.00 z 3699.01
1916 0.00 z 21.50 250.00 267.69 d 0.00 z 0.00 z 1003.00 826.67 d 512.00 191.50 0.00 z 0.00 i 3072.36
1917 1.50 23.69 b 61.48 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 126.00 k 98.00 25.00 209.68
1918 18.00 29.50 220.00 166.55 a 589.00 958.50 958.50 965.50 557.50 409.50 64.00 7.00 4943.55
1919 0.00 0.00 84.50 275.50 548.00 846.00 1128.92 a 1006.50 742.24 a 167.40 a 17.68 b 0.00 b 4816.74
1920 4.00 1.04 a 41.85 a 81.72 a 539.50 0.00 z 980.50 862.00 637.00 304.50 21.00 2.00 3475.11
1921 6.00 19.00 121.00 187.50 512.50 809.50 989.00 930.50 632.50 342.50 50.50 27.00 4627.50
1922 1.00 4.50 52.50 155.50 505.00 854.00 945.00 1025.00 672.50 309.50 8.50 1.00 4534.00
1923 20.50 3.50 17.00 199.50 492.50 758.00 1013.00 880.00 584.00 208.50 28.00 10.91 d 4215.41
1924 2.00 29.50 6.00 205.50 373.50 781.00 943.00 930.50 568.00 436.50 107.00 3.50 4386.00
1925 0.00 4.00 141.50 328.00 602.00 806.50 1024.50 890.00 703.00 160.00 18.00 3.00 4680.50
1926 0.00 5.00 61.00 248.50 567.50 785.50 947.00 964.50 616.50 369.00 58.00 13.00 4635.50
1927 1.00 14.00 49.00 261.50 572.50 742.50 951.00 809.00 642.50 348.00 0.00 z 0.00 4391.00
1928 22.00 3.00 98.50 184.50 542.50 622.00 965.00 902.00 604.00 283.50 32.50 0.00 4259.50
1929 0.00 0.00 53.50 200.50 479.00 803.00 1045.50 1026.50 536.00 349.00 0.00 0.00 4493.00
1930 0.00 25.50 31.00 408.00 445.50 826.50 1033.50 950.50 644.50 271.50 40.50 0.00 4677.00
1931 3.00 1.00 50.50 243.00 456.00 923.50 1071.50 958.00 744.00 354.50 78.50 2.00 4885.50
1932 0.00 44.50 32.50 292.50 577.00 763.50 1072.00 964.50 654.50 220.50 37.50 0.50 4659.50
1933 0.00 1.50 76.98 a 190.50 440.00 937.50 1094.00 919.00 747.00 366.50 68.00 24.50 4865.48
1934 5.00 19.00 116.50 301.00 761.50 889.50 1135.50 1027.00 516.50 411.00 98.00 0.00 5280.50
1935 2.50 21.00 81.00 182.50 307.50 767.68 b 1066.50 983.50 620.50 287.50 3.50 0.00 4323.68
1936 1.00 16.65 b 43.00 341.50 618.00 902.50 1136.00 994.00 682.50 264.50 39.00 0.00 5038.65
1937 0.00 5.50 40.00 228.00 595.50 756.50 1053.00 1093.00 751.50 348.50 35.50 0.50 4907.50
1938 0.00 a 25.41 a 127.50 310.50 483.00 828.00 1042.50 1047.00 721.00 415.50 29.00 2.00 5031.41
1939 0.00 0.00 118.50 294.00 651.50 822.00 1130.00 952.00 731.00 314.00 28.00 49.00 5090.00
1940 0.00 33.50 142.00 222.50 578.00 875.50 1048.00 937.50 720.50 374.67 b 25.34 a 0.00 4957.52
1941 0.00 10.00 41.50 210.00 605.50 759.50 983.50 929.00 557.50 257.50 29.00 0.00 4383.00
1942 0.00 0.00 12.50 281.00 464.00 770.50 1022.00 936.00 601.00 319.00 60.00 9.00 4475.00
1943 26.50 23.00 88.00 388.50 408.50 759.50 1088.00 1062.00 637.50 294.50 28.50 0.00 a 4804.50
1944 1.00 5.50 10.50 129.50 571.00 797.00 986.50 1016.00 637.50 327.00 66.00 0.00 4547.50
1945 3.00 10.50 86.50 174.50 513.50 681.00 1036.50 967.00 533.50 348.00 63.00 0.00 4417.00
1946 0.00 2.50 166.50 436.50 418.00 829.00 1066.50 955.00 657.00 271.00 2.50 21.50 4826.00
1947 1.50 10.50 70.00 205.50 479.50 707.00 1027.50 1055.00 781.00 458.50 26.00 7.50 4829.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 974.50 783.00 291.50 32.00 0.00 2081.00
1949 0.00 16.00 61.00 319.50 542.00 764.48 a 1018.00 982.00 608.50 277.00 180.00 5.50 4773.98
1950 17.50 52.00 71.00 266.50 405.50 800.00 926.50 915.65 d 635.17 a 434.00 69.50 14.50 4607.82
1951 3.10 a 34.50 41.50 168.00 529.50 669.83 a 1009.50 905.50 600.00 b 245.42 a 26.50 11.88 a 4245.23
1952 3.62 a 2.50 25.00 274.50 510.00 952.00 991.48 a 957.50 656.00 243.87 a 23.50 0.00 a 4639.97
1953 31.50 15.00 89.00 152.50 397.00 844.50 1016.50 967.00 739.14 a 384.00 91.50 1.00 4728.64
1954 5.00 65.50 42.50 370.50 533.50 824.50 1140.28 a 939.00 735.00 303.50 36.50 0.50 4996.28
1955 0.00 0.00 62.00 293.00 402.00 i 700.50 1113.00 1028.00 680.00 346.50 34.50 19.50 4277.00
1956 3.00 0.00 104.00 203.00 627.50 979.50 1017.32 a 894.00 661.00 368.00 44.00 7.50 4908.82
1957 0.50 34.50 56.46 c 146.50 439.17 a 763.50 1047.59 b 672.00 j 568.00 281.50 34.00 2.00 3373.72
1958 0.00 a 37.50 22.50 157.50 666.50 850.00 936.00 1006.50 717.50 329.50 61.00 7.00 4791.50
1959 0.50 0.00 40.00 245.50 532.00 917.00 992.00 1001.00 573.00 200.50 35.00 0.00 4536.50
1960 0.00 4.00 123.50 301.00 534.00 830.00 995.50 950.50 689.50 325.00 42.00 0.00 4795.00
1961 0.00 26.00 68.50 203.00 519.50 812.50 975.50 960.00 462.50 272.50 16.00 2.50 4318.50
1962 0.00 44.00 46.00 342.00 611.00 768.00 792.50 f 926.50 648.50 405.30 d 82.20 e 4.50 g 3873.50
1963 0.00 b 44.50 103.50 295.50 655.00 862.00 1119.62 a 936.20 a 752.59 a 522.83 e 70.80 e 0.00 i 5362.53
1964 3.00 l 1.07 b 25.00 236.00 625.00 783.00 1141.00 916.00 647.68 b 276.00 h 44.00 j 26.50 h 4374.75
1965 8.50 f 11.00 14.00 316.03 a 544.50 766.50 1023.00 a 918.00 421.00 304.50 i 92.00 k 10.50 h 4014.03
1966 0.00 d 0.00 135.50 228.62 a 597.50 800.50 1149.00 936.00 721.00 251.00 g 42.50 i 0.00 i 4568.12
1967 14.93 d 11.00 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 25.93
Period of Record Statistics
MEAN 4.99 14.51 77.57 254.33 528.49 803.21 1010.54 950.74 643.59 314.56 54.64 6.47 4690.72
S.D. 8.57 16.54 56.47 73.45 79.33 75.93 73.75 56.77 79.67 74.25 34.65 9.99 253.33
SKEW 2.33 1.60 1.32 0.32 -0.05 0.08 0.10 0.09 -0.63 0.06 0.94 2.06 0.11
MAX 41.16 78.50 270.50 436.50 761.50 979.50 1149.00 1093.00 783.00 522.83 180.00 49.00 5280.50
MIN 0.00 0.00 6.00 81.72 307.50 622.00 865.62 809.00 421.00 160.00 0.00 0.00 4215.41
NO YRS 67 71 71 68 68 67 66 68 68 68 67 64 50