WILLCOX, ARIZONA

Monthly Total Growing Degree Days

(029334)

Base Temperature = 50 F

File last updated on Apr 3, 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
1898 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
1899 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
1900 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
1901 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
1902 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
1903 0.00 z 0.00 z 42.50 r 199.50 0.00 z 462.00 773.45 a 747.50 656.90 a 229.00 58.50 0.00 3126.85
1904 0.00 55.00 97.00 287.50 495.00 687.00 857.50 810.50 600.00 309.50 0.50 1.00 4200.50
1905 0.00 27.50 73.50 179.50 419.00 754.50 866.50 905.00 685.00 312.00 61.00 0.00 4283.50
1906 2.50 18.50 86.00 239.00 459.00 703.50 911.50 744.50 599.50 268.50 121.00 14.00 4167.50
1907 2.50 25.50 255.50 256.00 326.00 615.50 859.00 817.00 653.00 313.00 0.00 z 0.00 4123.00
1908 0.50 8.00 131.50 207.00 359.50 683.00 873.00 828.50 610.00 180.00 0.00 z 8.00 3889.00
1909 0.00 0.00 34.50 173.00 367.00 704.50 927.50 825.00 608.00 304.00 70.50 0.00 z 4014.00
1910 0.00 z 9.50 145.00 245.00 519.50 789.00 854.50 739.00 716.00 351.50 67.50 1.50 4438.00
1911 87.50 0.00 z 0.00 z 175.50 408.00 0.00 z 0.00 z 756.00 575.50 265.00 4.00 0.00 2271.50
1912 0.00 0.00 26.00 64.50 386.00 769.50 787.50 746.50 566.00 268.50 78.00 0.00 3692.50
1913 0.00 0.00 21.00 125.50 453.00 609.50 762.00 772.00 587.00 288.50 82.50 1.00 3702.00
1914 37.50 8.50 110.50 287.00 484.63 a 777.00 836.00 875.50 667.50 403.50 159.50 5.50 4652.63
1915 0.00 2.50 52.50 245.50 368.50 660.00 846.00 857.50 648.50 412.00 118.00 38.50 4249.50
1916 22.00 38.00 167.00 295.50 476.00 699.50 837.00 822.50 701.50 406.00 71.38 a 21.50 4557.88
1917 0.00 2.00 34.00 155.00 257.00 639.50 864.00 739.00 579.00 275.50 36.00 0.00 3581.00
1918 1.00 31.00 104.50 178.00 318.50 754.50 815.50 693.00 576.21 a 321.00 56.50 2.50 3852.21
1919 0.00 0.00 37.00 204.83 a 394.00 642.00 766.50 748.50 521.50 144.00 30.50 1.00 3489.83
1920 5.50 9.50 42.50 55.00 350.50 566.50 537.50 k 694.00 541.00 240.00 13.50 0.00 q 2518.00
1921 7.50 18.50 110.50 181.50 410.00 665.50 806.50 714.55 a 592.00 343.00 45.50 8.86 c 3903.91
1922 10.00 13.48 a 24.00 93.50 k 378.72 a 560.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 426.20
1923 24.50 k 8.00 31.00 192.00 465.50 584.00 812.50 707.00 528.00 187.50 25.50 0.00 3541.00
1924 0.00 a 0.50 10.69 b 124.50 435.50 754.50 846.00 834.50 693.50 272.11 d 33.50 i 2.50 3974.30
1925 1.00 28.00 a 124.50 249.50 498.00 674.00 876.50 730.50 572.50 321.50 29.00 10.00 4115.00
1926 1.50 19.00 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 20.50
1927 0.00 z 0.00 z 41.50 168.00 395.00 567.50 781.00 730.57 a 573.00 243.50 75.00 4.00 3579.07
1928 6.00 15.50 90.50 149.00 426.00 603.50 805.00 692.50 412.50 j 312.50 34.00 6.50 3141.00
1929 3.00 1.00 39.50 103.50 371.50 616.50 801.50 686.13 a 572.00 318.50 0.50 0.50 3514.13
1930 0.00 18.08 d 26.00 219.50 225.00 614.50 724.50 696.00 437.50 152.00 23.50 i 0.00 3113.08
1931 0.00 0.50 56.50 176.00 384.50 601.50 621.50 h 734.50 637.00 293.00 64.82 b 0.00 d 2948.32
1932 0.00 60.00 33.00 167.50 345.50 593.00 837.00 795.00 605.00 256.00 40.00 12.50 3744.50
1933 0.00 3.50 43.50 97.00 269.00 677.50 874.00 819.00 658.00 385.00 56.00 4.50 3887.00
1934 1.50 30.00 127.50 310.56 c 597.86 c 614.00 869.50 730.50 468.00 289.00 110.69 a 14.00 4163.10
1935 8.00 13.50 55.50 197.50 285.00 649.50 829.50 779.13 a 555.00 317.50 21.00 0.50 3711.63
1936 2.50 22.50 72.00 290.50 489.00 749.50 896.00 802.00 565.00 249.50 62.50 5.00 4206.00
1937 0.00 11.50 23.50 168.00 449.50 604.14 a 864.38 a 598.50 h 628.50 366.83 d 36.00 n 14.50 m 3116.35
1938 6.00 0.00 z 68.00 201.00 407.00 732.50 814.00 795.50 606.00 253.50 f 34.82 b 0.00 g 3664.82
1939 0.00 0.00 93.50 241.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 78.00 v 69.00 24.59 b 428.09
1940 2.50 19.50 126.50 235.34 a 537.50 775.50 947.10 b 840.00 698.00 432.50 0.00 z 23.77 a 4638.21
1941 0.00 a 39.93 a 75.43 a 147.50 474.82 a 653.00 871.00 804.00 470.50 g 316.50 76.15 d 0.00 e 3458.33
1942 2.50 26.44 a 32.50 136.00 j 0.00 z 692.50 919.50 802.50 624.60 e 310.52 a 54.50 h 8.50 3419.56
1943 3.00 39.41 a 100.23 a 325.50 501.50 710.40 e 892.50 844.00 646.00 311.00 31.15 d 0.00 d 4404.69
1944 0.00 3.00 30.48 a 135.56 c 457.77 a 673.00 872.65 a 869.00 636.00 404.00 48.00 0.00 h 4129.46
1945 0.00 4.50 4.00 k 183.33 c 443.41 c 600.50 658.00 i 877.82 a 660.50 388.02 a 46.50 5.50 3210.08
1946 0.00 a 3.00 80.50 380.50 437.50 797.50 946.00 862.00 691.50 281.50 16.50 0.00 f 4496.50
1947 0.00 21.84 c 79.71 c 210.58 d 592.21 b 692.22 c 957.38 a 858.00 713.89 c 386.95 c 27.32 b 0.00 4540.10
1948 3.74 b 13.00 23.85 e 251.00 h 540.20 d 780.00 920.00 869.60 b 679.29 b 335.50 10.00 5.00 4180.18
1949 7.00 16.00 94.50 288.00 454.00 719.00 855.50 824.00 722.50 268.00 89.00 12.50 4350.00
1950 10.50 21.50 93.00 309.00 331.00 g 722.50 830.00 820.00 589.00 520.00 104.00 0.50 4020.00
1951 5.50 22.00 78.50 232.50 492.50 631.00 1001.00 868.50 710.00 411.50 50.50 18.00 4521.50
1952 10.50 0.50 27.00 250.50 551.50 754.00 931.50 897.00 714.00 417.00 52.00 0.50 4606.00
1953 5.50 5.60 c 104.00 207.86 b 338.70 d 790.96 d 928.45 a 639.50 h 678.50 304.83 d 96.72 a 1.07 b 3462.20
1954 6.20 a 38.35 e 83.50 282.00 g 322.50 k 719.50 948.50 791.02 a 743.50 444.69 b 61.55 a 20.67 a 3857.47
1955 0.00 5.00 73.50 178.00 448.50 711.00 863.87 a 855.71 b 654.81 d 423.00 61.11 c 6.31 d 4280.81
1956 0.00 b 2.15 b 86.00 202.50 561.00 886.50 926.50 838.03 a 743.79 a 359.00 22.76 a 0.00 4628.23
1957 32.50 116.08 d 89.42 e 213.62 a 392.67 d 750.50 892.50 800.50 587.00 289.00 26.79 b 8.55 b 4199.13
1958 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
1959 4.28 b 8.17 d 58.38 a 332.68 b 447.00 829.00 905.00 767.00 582.50 305.00 29.00 9.00 4277.00
1960 1.00 1.00 126.50 237.50 461.00 766.00 549.50 l 864.50 678.00 262.50 54.50 2.00 3454.50
1961 0.00 6.00 46.50 204.00 423.67 a 765.50 899.00 792.00 540.50 250.50 13.00 6.50 3947.17
1962 0.00 37.50 23.00 302.00 398.00 597.93 a 814.00 815.50 653.50 323.50 57.50 1.50 4023.93
1963 1.00 30.50 80.50 155.50 493.00 598.50 922.00 783.00 679.50 363.50 56.50 0.00 4163.50
1964 0.00 0.00 31.50 144.00 428.50 655.50 888.50 798.00 581.00 348.00 19.50 3.50 3898.00
1965 11.50 11.50 49.00 206.50 339.50 543.00 888.00 826.00 557.50 309.00 111.00 4.00 3856.50
1966 0.00 0.00 76.00 210.00 a 462.93 a 670.50 925.00 770.50 586.50 230.50 62.50 20.00 4014.43
1967 2.00 14.50 126.00 157.50 390.00 642.50 866.50 769.00 586.00 290.00 40.00 0.50 3884.50
1968 0.00 37.50 58.50 137.00 365.00 677.00 799.00 691.50 566.50 297.50 37.00 0.00 3666.50
1969 13.00 1.50 33.00 185.50 444.00 636.50 906.00 901.00 659.50 271.00 42.93 a 6.50 4100.43
1970 0.00 18.50 23.50 77.00 460.50 745.00 917.50 794.50 557.50 148.00 17.00 7.15 e 3766.15
1971 4.50 10.00 72.73 e 36.00 h 262.00 676.00 661.50 j 534.50 k 475.50 f 284.50 57.50 7.00 1374.23
1972 1.00 28.50 229.00 251.50 462.50 746.00 961.00 858.50 655.50 382.00 14.50 0.50 j 4590.00
1973 1.00 16.50 13.00 149.00 480.00 711.00 891.25 c 872.50 681.50 352.50 105.00 3.00 4276.25
1974 6.00 1.56 a 152.23 c 264.00 551.50 880.50 866.50 813.00 620.50 354.50 48.50 3.00 4561.79
1975 6.50 4.50 61.50 129.50 406.50 688.50 881.00 898.00 605.00 305.00 62.00 0.00 4048.00
1976 2.00 37.00 99.00 264.00 501.00 735.50 850.00 835.50 604.00 253.50 47.00 0.00 4228.50
1977 2.50 28.50 36.50 282.50 458.00 767.50 913.00 893.50 711.00 429.00 87.00 17.50 4626.50
1978 18.00 16.00 177.00 254.00 476.50 782.50 949.63 a 825.00 637.50 423.50 105.00 3.00 4667.63
1979 2.00 24.50 62.00 269.00 478.50 729.50 929.50 787.00 704.50 416.00 32.00 6.50 4441.00
1980 22.00 50.50 60.00 259.00 449.00 805.00 1005.50 841.50 664.00 299.00 96.00 19.50 4571.00
1981 2.00 55.00 81.50 384.00 517.00 841.50 931.00 842.50 672.00 342.50 91.50 23.50 4784.00
1982 10.00 48.50 119.00 298.00 470.50 668.50 888.50 879.50 685.50 272.00 42.00 3.50 4385.50
1983 8.50 14.50 77.00 169.50 471.50 659.50 890.50 865.50 766.00 380.50 123.00 2.50 4428.50
1984 7.00 3.00 109.50 227.50 665.00 766.50 873.50 829.50 660.50 282.50 70.00 23.50 4518.00
1985 0.50 31.00 142.50 332.00 554.50 789.00 921.50 858.50 577.00 349.00 78.00 3.00 4636.50
1986 8.00 79.50 184.00 339.50 539.00 789.50 835.50 886.00 586.00 292.00 68.00 8.50 4615.50
1987 8.00 13.00 51.00 311.00 471.00 746.50 826.00 806.00 598.50 482.50 70.50 7.00 4391.00
1988 4.50 44.50 105.50 265.50 530.50 776.00 932.50 828.50 598.00 459.50 121.00 3.00 4669.00
1989 2.50 61.00 229.50 415.50 568.00 767.50 962.00 856.50 676.50 353.50 71.50 2.00 4966.00
1990 11.00 29.50 154.00 331.00 508.50 902.00 897.00 768.00 696.50 336.50 101.00 4.00 4739.00
1991 5.00 45.00 67.00 217.50 457.00 650.00 894.50 857.50 625.00 396.50 58.00 11.00 4284.00
1992 0.00 17.00 81.50 328.00 532.00 697.50 864.50 830.00 674.50 396.00 25.00 12.50 4458.50
1993 8.50 16.00 126.50 276.00 570.00 753.50 890.50 873.50 644.50 361.00 44.50 19.00 4583.50
1994 8.50 34.50 144.00 293.00 527.00 907.00 975.50 962.50 714.50 351.50 82.00 8.00 5008.00
1995 2.50 74.00 140.50 207.00 439.00 706.50 892.00 945.00 719.00 391.50 148.00 16.50 4681.50
1996 16.00 119.00 127.50 332.50 629.50 848.00 973.00 881.50 633.00 382.00 90.00 22.50 5054.50
1997 17.50 17.50 190.00 266.50 637.00 729.50 917.50 894.50 804.50 362.00 0.00 z 3.50 4840.00
1998 4.50 3.00 97.00 183.00 501.00 704.00 961.50 928.00 768.50 394.50 92.00 16.00 4653.00
1999 28.00 33.50 140.00 236.00 520.50 765.50 852.50 855.50 714.50 368.00 158.50 5.50 4678.00
2000 35.50 49.50 125.00 388.00 674.50 837.50 978.00 888.00 774.50 356.50 13.50 2.50 5123.00
2001 1.50 23.00 122.50 307.50 627.00 846.50 913.00 879.00 709.50 450.00 192.50 1.00 5073.00
2002 10.50 29.50 141.50 432.50 559.50 894.50 981.50 877.50 726.00 321.50 91.50 8.78 a 5074.78
2003 25.50 45.50 135.00 292.00 638.00 853.00 1055.50 962.15 d 789.00 559.50 110.00 14.00 5479.15
2004 8.00 22.00 298.50 297.00 634.00 799.50 929.50 822.50 631.00 385.00 43.50 10.00 4880.50
2005 26.50 21.00 h 55.50 m 289.00 486.50 f 0.00 z 1024.50 858.50 740.50 427.00 0.00 z 4.00 y 3366.00
2006 15.00 n 49.50 h 144.87 e 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.50 145.37
2007 0.00 a 28.50 192.50 306.50 647.00 842.50 1002.00 937.00 773.50 450.50 213.50 20.00 5413.50
2008 11.50 0.00 z 0.00 z 269.40 e 510.50 680.50 f 929.47 b 905.50 711.50 408.50 95.50 7.00 3848.87
2009 26.50 70.50 168.50 263.00 658.50 744.50 1012.31 b 603.50 k 745.00 401.50 154.00 0.00 4244.31
2010 1.00 1.50 70.00 269.00 465.50 843.50 1015.50 951.50 794.50 483.00 82.50 35.50 5013.00
2011 7.50 26.96 a 154.50 g 400.00 473.00 843.00 993.50 985.50 761.00 438.13 a 67.50 b 3.62 a 4999.71
2012 7.00 19.50 157.50 382.00 614.00 898.50 750.50 f 953.50 702.50 338.00 g 173.50 22.22 a 3930.22
2013 19.63 a 0.00 156.00 h 20.00 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 19.63
Period of Record Statistics
MEAN 6.92 22.68 92.02 236.18 466.79 719.59 891.55 825.31 647.66 337.24 66.85 7.47 4363.58
S.D. 11.49 22.65 56.14 78.40 94.71 89.38 64.25 68.10 72.36 77.45 42.41 8.33 451.96
SKEW 3.96 1.82 1.00 0.15 -0.01 -0.01 0.05 -0.09 -0.09 0.00 1.02 1.42 0.16
MAX 87.50 119.00 298.50 432.50 674.50 907.00 1055.50 985.50 804.50 559.50 213.50 38.50 5479.15
MIN 0.00 0.00 10.69 55.00 225.00 462.00 724.50 686.13 437.50 144.00 0.50 0.00 3489.83
NO YRS 105 103 102 102 101 102 98 101 102 103 97 99 71