DUNCAN, ARIZONA

Monthly Total Growing Degree Days

(022754)

Base Temperature = 50 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1901 0.00 z 0.00 z 0.00 z 0.00 z 150.50 t 641.50 937.00 877.00 647.50 331.50 62.00 1.00 3497.50
1902 0.00 d 5.00 24.00 237.00 464.00 722.50 770.87 a 845.50 602.50 324.50 62.50 0.00 4058.37
1903 0.00 1.50 69.00 220.00 377.50 625.50 905.50 872.00 605.50 205.00 23.00 0.00 z 3904.50
1904 0.00 41.50 128.00 0.00 z 441.50 673.27 d 0.00 z 881.95 a 577.50 b 317.50 7.00 0.00 3068.22
1905 0.00 c 34.50 83.50 176.00 364.00 737.50 840.50 882.00 652.50 347.50 45.50 0.00 4163.50
1906 0.00 e 10.00 93.00 226.50 408.00 709.00 886.08 a 766.50 595.00 288.50 0.00 z 0.00 z 3982.58
1907 0.00 z 0.00 z 179.00 263.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 442.00
1908 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
1909 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
1910 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
1911 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
1912 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
1913 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
1914 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
1915 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
1916 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
1917 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
1918 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
1919 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
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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
1926 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
1927 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
1928 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 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
1936 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
1937 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
1938 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
1939 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
1940 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
1941 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
1942 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
1943 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
1944 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
1945 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
1946 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
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 330.58 d 548.00 763.00 923.50 870.00 656.00 314.00 9.00 7.50 4421.58
1949 8.30 c 10.50 68.50 229.50 403.00 641.50 820.00 723.50 637.50 0.00 z 46.00 12.50 3600.80
1950 1.50 8.50 69.50 290.00 401.50 688.00 843.00 777.00 556.50 459.50 54.50 0.00 4149.50
1951 2.14 b 13.50 63.50 195.00 508.50 602.50 986.00 883.50 703.00 389.00 30.00 13.00 4389.64
1952 4.50 0.50 22.00 228.50 521.00 745.50 900.00 896.50 650.50 327.00 29.50 0.00 4325.50
1953 0.00 1.00 105.50 226.00 339.50 798.50 946.50 847.00 607.50 293.50 54.50 0.00 4219.50
1954 3.50 27.50 95.00 375.00 553.50 730.00 924.50 804.50 706.00 410.50 41.00 17.50 4688.50
1955 0.00 12.44 a 100.50 208.00 498.50 688.50 845.50 820.00 615.00 375.00 57.00 3.50 4223.94
1956 1.00 8.50 85.50 224.00 533.50 864.50 851.00 760.50 638.00 333.00 5.89 b 1.03 a 4306.43
1957 39.00 118.50 86.50 214.00 418.50 779.00 942.00 793.00 553.50 287.00 22.50 1.50 4255.00
1958 0.00 41.50 34.00 243.50 591.00 819.00 879.50 883.00 648.00 339.00 50.00 0.00 4528.50
1959 3.50 12.00 39.00 325.00 467.00 827.00 914.50 817.50 603.00 314.50 30.50 6.50 4360.00
1960 0.00 3.00 130.50 253.00 445.00 769.50 857.00 859.50 669.50 300.50 84.50 0.00 4372.00
1961 1.00 7.00 87.50 218.00 483.50 783.50 898.00 807.50 582.00 249.00 6.00 5.00 4128.00
1962 1.00 43.75 d 35.00 336.50 436.00 650.50 851.50 853.50 678.00 331.50 70.50 4.00 4291.75
1963 0.00 35.50 89.50 224.50 561.50 650.50 948.00 808.50 680.00 370.00 66.00 0.00 4434.00
1964 0.00 0.00 46.00 199.50 527.50 707.50 956.50 884.50 609.00 334.50 25.00 6.50 4296.50
1965 5.50 9.50 63.50 256.00 427.50 612.50 926.50 871.00 613.50 302.00 101.50 3.00 4192.00
1966 0.00 a 0.00 105.00 265.50 532.50 692.00 954.00 848.88 a 616.50 253.00 67.50 20.50 4355.38
1967 0.50 19.50 156.00 224.00 460.50 722.00 938.00 826.00 615.00 312.58 a 45.52 a 4.00 4323.60
1968 4.13 a 43.50 87.50 188.50 477.50 750.00 847.50 733.15 a 559.50 312.50 31.00 0.00 4034.78
1969 20.00 5.00 64.50 293.00 528.50 721.00 937.50 940.00 662.00 305.00 51.00 7.75 a 4535.25
1970 2.00 11.50 45.00 138.50 495.00 757.50 923.50 868.50 593.50 169.00 20.00 2.00 4026.00
1971 0.50 s 14.50 114.00 224.50 427.50 432.00 j 997.37 e 821.00 641.00 183.00 f 55.00 2.00 3296.87
1972 4.28 b 11.00 219.50 236.00 457.50 675.00 899.55 c 830.80 a 631.00 382.00 5.00 3.00 4354.63
1973 1.00 3.00 15.50 132.00 485.50 665.00 702.50 g 833.00 0.00 z 284.17 d 58.00 0.00 2477.17
1974 0.50 0.00 123.50 204.00 596.23 a 866.38 a 904.00 803.00 643.50 375.50 24.50 1.00 4542.11
1975 3.50 1.50 64.00 106.00 383.00 660.50 901.00 682.00 g 585.00 258.50 29.00 0.00 2992.00
1976 0.00 15.50 32.50 196.00 437.50 659.50 836.00 838.00 375.50 j 234.00 22.50 0.00 3271.50
1977 0.00 2.00 13.00 242.00 413.50 748.50 943.36 b 905.50 636.00 383.50 53.50 4.13 a 4345.00
1978 9.00 14.50 137.50 35.50 y 347.50 i 766.50 951.50 833.50 641.50 377.50 77.50 2.50 3811.50
1979 0.00 5.50 25.00 185.50 394.00 670.50 926.00 787.00 682.00 352.00 23.00 0.00 4050.50
1980 7.50 21.00 31.00 219.00 385.00 797.00 1031.50 668.00 h 692.00 264.00 61.50 7.00 3516.50
1981 5.50 36.00 54.50 344.00 530.00 859.50 995.00 878.50 688.50 333.50 36.50 0.00 4761.50
1982 0.50 25.00 71.50 232.00 457.00 662.00 943.50 917.00 685.50 232.50 32.00 0.00 4258.50
1983 5.00 1.50 57.50 103.50 403.00 651.50 915.00 904.00 772.00 388.50 93.50 0.00 4295.00
1984 0.00 0.00 58.00 140.00 580.50 756.50 917.50 839.50 649.50 245.50 29.00 15.00 4231.00
1985 0.00 14.50 90.50 265.50 519.00 762.50 922.50 855.00 561.50 300.50 47.50 2.50 4341.50
1986 10.00 50.00 139.00 296.50 509.00 795.00 886.50 945.50 612.50 289.50 54.50 3.00 4591.00
1987 3.00 3.50 28.50 258.00 454.00 752.50 850.50 830.00 595.50 457.50 72.00 0.00 4305.00
1988 0.00 38.50 61.50 217.00 498.00 804.00 954.00 879.00 584.50 464.00 95.50 1.00 4597.00
1989 2.00 35.50 157.50 386.00 564.00 788.00 1011.00 935.00 678.00 334.50 25.50 0.00 4917.00
1990 7.00 z 23.00 l 151.00 375.50 526.00 933.00 910.00 785.00 731.50 316.00 83.00 2.50 4813.50
1991 3.00 28.50 50.50 204.50 452.00 663.00 883.00 855.00 617.50 389.50 46.50 6.00 4199.00
1992 0.00 6.50 79.50 301.50 494.50 666.00 864.50 840.00 649.50 371.00 16.50 6.00 4295.50
1993 17.50 12.00 106.00 235.00 559.00 752.00 944.00 887.50 622.50 327.50 13.50 2.00 4478.50
1994 4.00 23.50 136.00 271.00 524.00 934.50 975.00 982.50 727.50 334.00 68.50 7.50 4988.00
1995 0.00 40.50 95.50 155.50 434.00 710.00 890.50 954.50 705.00 372.00 119.00 1.00 4477.50
1996 4.00 92.50 68.50 300.00 628.50 877.00 1024.50 904.50 618.50 374.00 63.50 8.00 4963.50
1997 8.50 7.00 137.00 246.50 635.50 739.00 945.50 920.00 806.00 321.50 58.00 0.50 4825.00
1998 0.50 4.00 74.50 160.00 479.00 723.50 984.50 922.50 763.50 387.50 46.50 11.00 4557.00
1999 12.50 27.00 142.00 248.50 553.50 786.00 928.00 632.50 i 764.00 370.00 128.50 4.00 3964.00
2000 29.50 41.43 a 115.50 400.00 716.50 896.50 1049.00 948.00 778.00 368.50 19.50 0.00 5362.43
2001 0.00 9.50 98.50 306.00 647.50 855.50 982.00 920.50 720.00 454.50 170.50 1.50 5166.00
2002 2.50 25.00 104.50 430.00 564.00 923.50 998.00 925.50 736.00 350.50 55.50 4.00 5119.00
2003 9.00 18.00 90.50 254.50 615.00 834.00 1093.50 1016.00 792.50 534.50 94.50 7.00 5359.00
2004 1.50 19.50 250.00 269.50 603.00 802.00 950.50 871.50 644.00 348.50 50.00 9.50 4819.50
2005 15.00 36.00 67.00 274.50 606.00 0.00 z 1011.00 922.00 754.00 424.00 0.00 z 0.00 4109.50
2006 4.50 20.00 113.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.50 138.00
2007 8.50 17.00 189.50 327.00 631.00 860.00 997.50 947.00 0.00 z 426.50 148.50 16.00 4568.50
2008 8.50 26.00 0.00 z 249.00 522.50 860.50 943.50 916.50 667.00 362.00 71.50 0.00 4627.00
2009 14.50 47.00 148.00 0.00 z 660.00 778.50 1078.50 985.00 715.00 0.00 z 0.00 z 0.00 z 4426.50
2010 0.00 3.50 51.50 288.50 470.50 825.50 997.00 954.50 782.00 425.50 53.00 3.50 4855.00
2011 1.00 24.50 145.50 387.93 a 479.00 848.50 1059.50 1045.39 d 764.50 395.00 41.00 0.00 z 5191.82
2012 0.00 12.00 136.50 362.50 621.50 934.66 a 999.50 992.50 721.50 371.50 116.00 2.50 5270.66
2013 18.00 1.50 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 19.50
Period of Record Statistics
MEAN 4.59 19.72 91.31 251.40 501.92 756.12 933.07 872.14 659.60 341.45 53.10 3.75 4489.86
S.D. 7.19 20.72 48.68 70.15 81.35 85.13 64.02 65.85 64.06 65.18 33.81 4.77 351.59
SKEW 2.62 2.29 0.77 0.35 0.31 0.30 0.17 0.17 0.49 0.11 1.15 1.64 0.99
MAX 39.00 118.50 250.00 430.00 716.50 934.66 1093.50 1045.39 806.00 534.50 170.50 20.50 5362.43
MIN 0.00 0.00 13.00 103.50 339.50 602.50 770.87 723.50 553.50 169.00 5.00 0.00 4026.00
NO YRS 68 69 69 67 68 68 68 67 67 67 67 67 51