WILLCOX, ARIZONA

Monthly Total Growing Degree Days

(029334)

Base Temperature = 40 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 130.00 r 499.50 0.00 z 762.00 1083.45 a 1057.50 956.90 a 535.00 323.50 36.50 5254.35
1904 21.00 238.50 401.50 587.50 805.00 987.00 1167.50 1120.50 900.00 605.00 197.00 76.00 7106.50
1905 139.50 190.50 348.00 465.50 729.00 1054.50 1176.50 1215.00 985.00 619.50 329.00 50.00 7302.00
1906 71.50 207.00 350.00 537.50 769.00 1003.50 1221.50 1054.50 899.50 540.00 343.00 204.50 7201.50
1907 129.50 276.50 540.50 553.50 636.00 915.50 1169.00 1127.00 953.00 623.00 0.00 z 74.50 6998.00
1908 86.00 147.50 425.50 504.00 669.50 983.00 1183.00 1138.50 910.00 446.50 0.00 z 94.00 6587.50
1909 195.00 122.00 245.50 468.00 677.00 1004.50 1237.50 1135.00 908.00 614.00 314.50 0.00 z 6921.00
1910 0.00 z 122.50 434.50 543.00 829.50 1089.00 1164.50 1049.00 1016.00 661.50 353.00 176.00 7438.50
1911 301.50 0.00 z 0.00 z 475.50 718.00 0.00 z 0.00 z 1066.00 875.50 575.00 209.00 6.50 4227.00
1912 46.00 69.00 282.00 341.50 696.00 1069.50 1097.50 1056.50 866.00 578.50 322.50 31.50 6456.50
1913 38.00 101.00 258.50 397.00 763.00 909.50 1072.00 1082.00 887.00 598.50 349.00 43.00 6498.50
1914 195.50 157.50 398.50 587.00 794.63 a 1077.00 1146.00 1185.50 967.50 713.50 455.00 118.00 7795.63
1915 84.50 171.50 304.00 541.50 678.50 960.00 1156.00 1167.50 948.50 722.00 392.50 265.00 7391.50
1916 231.00 289.50 477.00 595.50 786.00 999.50 1147.00 1132.50 1001.50 716.00 315.52 a 122.50 7813.52
1917 35.00 91.50 200.00 410.00 567.00 939.50 1174.00 1049.00 879.00 581.50 257.00 66.00 6249.50
1918 47.50 172.00 338.50 460.00 627.00 1054.50 1125.50 1003.00 876.21 a 619.00 228.50 49.50 6601.21
1919 40.00 54.50 225.00 476.38 a 704.00 942.00 1076.50 1058.50 821.50 451.50 232.50 106.00 6188.38
1920 127.00 185.50 241.50 293.50 660.50 866.50 737.50 k 1004.00 841.00 528.00 232.00 33.50 q 4979.50
1921 112.50 158.00 387.50 430.00 720.00 965.50 1116.50 1024.55 a 892.00 637.00 272.00 167.18 c 6882.73
1922 57.00 150.89 a 162.00 256.50 k 680.45 a 750.00 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1050.34
1923 153.00 k 131.00 212.50 480.00 775.50 884.00 1122.50 1017.00 828.00 475.50 243.00 55.50 6224.50
1924 18.08 a 122.00 148.05 b 392.00 745.50 1054.50 1156.00 1144.50 993.50 582.11 d 207.50 i 106.00 6462.25
1925 57.00 229.70 a 365.00 544.50 808.00 974.00 1186.50 1040.50 872.50 623.00 215.00 61.00 6976.70
1926 43.00 160.50 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 203.50
1927 0.00 z 0.00 z 249.00 415.00 699.50 867.50 1091.00 1040.57 a 873.00 547.50 347.00 53.50 6183.57
1928 81.00 126.50 350.00 415.50 736.00 903.50 1115.00 1002.50 612.50 j 615.00 235.00 72.00 5652.00
1929 38.50 76.00 214.00 379.50 681.50 916.50 1111.50 996.13 a 872.00 583.50 79.50 83.00 6031.63
1930 60.50 168.00 d 205.50 512.00 514.50 914.50 1034.50 1006.00 737.50 453.00 133.00 i 40.00 5646.00
1931 48.00 136.00 253.50 473.50 694.50 901.50 851.50 h 1044.50 937.00 601.00 244.82 b 63.72 d 5398.04
1932 27.00 237.50 245.00 433.00 652.50 893.00 1147.00 1105.00 905.00 559.00 269.00 80.50 6553.50
1933 44.00 56.00 296.00 363.00 566.50 977.50 1184.00 1129.00 958.00 695.00 302.50 124.50 6696.00
1934 80.00 231.00 416.50 602.78 c 907.86 c 914.00 1179.50 1040.50 768.00 599.00 295.34 a 160.00 7194.48
1935 159.50 149.50 279.00 491.00 583.50 949.50 1139.50 1089.13 a 855.00 618.50 201.00 92.50 6607.63
1936 81.50 185.00 325.50 564.50 799.00 1049.50 1206.00 1112.00 865.00 553.00 270.00 98.00 7109.00
1937 28.00 128.50 226.00 447.00 759.50 904.14 a 1174.38 a 828.50 h 928.50 676.83 d 178.00 n 109.50 m 5272.85
1938 126.50 0.00 z 302.50 484.00 713.00 1032.50 1124.00 1105.50 906.00 503.50 f 186.43 b 64.00 g 5980.43
1939 51.00 26.50 334.00 531.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 168.00 v 323.00 243.19 b 1509.19
1940 123.50 185.50 404.00 534.31 a 847.50 1075.50 1257.10 b 1150.00 998.00 742.50 0.00 z 248.52 a 7566.43
1941 138.47 a 280.52 a 355.47 a 437.00 782.75 a 953.00 1181.00 1114.00 700.50 g 622.50 302.88 d 104.92 e 6272.51
1942 144.50 142.07 a 244.00 335.00 j 0.00 z 992.50 1229.50 1112.50 924.60 e 615.35 a 245.00 h 141.00 5546.02
1943 112.00 253.56 a 394.22 a 617.50 811.50 1010.40 e 1202.50 1154.00 946.00 609.00 266.54 d 81.52 d 7458.73
1944 49.50 115.00 266.08 a 430.56 c 767.77 a 973.00 1182.65 a 1179.00 936.00 714.00 247.50 44.50 h 6861.06
1945 87.50 160.50 98.00 k 443.33 c 753.41 c 900.50 878.00 i 1187.82 a 960.50 698.02 a 253.00 86.50 5531.08
1946 61.48 a 112.00 331.00 680.50 747.50 1097.50 1256.00 1172.00 991.50 591.50 206.00 93.00 f 7246.98
1947 42.50 211.12 c 347.09 c 501.92 d 902.21 b 992.22 c 1267.38 a 1168.00 1013.89 c 696.95 c 185.89 b 52.00 7381.17
1948 113.31 b 134.50 192.56 e 471.00 h 850.20 d 1080.00 1230.00 1179.60 b 979.29 b 641.00 136.50 105.50 6642.46
1949 83.50 129.50 360.50 572.00 764.00 1019.00 1165.50 1134.00 1022.50 562.00 382.00 123.50 7318.00
1950 126.00 241.00 374.50 608.50 569.00 g 1022.50 1140.00 1130.00 889.00 830.00 372.00 170.50 6904.00
1951 86.00 166.50 321.50 523.50 799.00 931.00 1311.00 1178.50 1010.00 721.50 298.00 147.00 7493.50
1952 181.50 104.00 184.00 544.50 861.50 1054.00 1241.50 1207.00 1014.00 727.00 234.50 62.00 7415.50
1953 160.50 120.96 c 372.50 500.36 b 647.56 d 1090.96 d 1238.45 a 869.50 h 978.50 611.39 d 344.48 a 42.76 b 6108.41
1954 131.75 a 289.13 e 341.00 512.00 g 522.50 k 1019.50 1258.50 1101.02 a 1043.50 754.69 b 331.03 a 133.30 a 6403.42
1955 34.50 82.00 340.00 470.50 758.50 1011.00 1173.87 a 1165.71 b 954.81 d 733.00 271.11 c 180.83 d 7175.83
1956 143.24 b 74.11 b 322.50 488.00 871.00 1186.50 1236.50 1148.03 a 1043.79 a 658.00 178.97 a 66.00 7416.64
1957 206.50 378.00 d 359.48 e 504.31 a 702.67 d 1050.50 1202.50 1110.50 887.00 598.50 203.04 b 132.02 b 7335.01
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 140.57 b 123.67 d 321.37 a 632.68 b 757.00 1129.00 1215.00 1077.00 882.50 610.00 248.50 119.50 7256.78
1960 69.00 68.50 411.50 529.50 771.00 1066.00 739.50 l 1174.50 978.00 572.00 281.50 66.00 5987.50
1961 96.00 125.00 303.50 499.50 733.67 a 1065.50 1209.00 1102.00 840.50 551.00 171.50 101.50 6798.67
1962 97.00 210.00 165.50 602.00 708.00 897.93 a 1124.00 1125.50 953.50 633.50 302.00 133.00 6951.93
1963 60.50 216.50 300.50 446.00 803.00 898.50 1232.00 1093.00 979.50 673.50 279.00 55.50 7037.50
1964 30.50 15.00 193.50 410.50 737.50 955.50 1198.50 1108.00 881.00 658.00 197.50 106.00 6491.50
1965 150.50 134.00 255.00 492.00 648.00 843.00 1198.00 1136.00 857.50 609.50 383.00 130.00 6836.50
1966 33.00 45.50 346.00 510.00 a 772.93 a 970.50 1235.00 1080.50 886.50 539.00 326.50 88.00 6833.43
1967 63.50 148.00 391.50 434.00 686.50 942.50 1176.50 1079.00 886.00 590.00 288.00 48.50 6734.00
1968 79.50 271.00 295.00 413.50 675.00 977.00 1109.00 1001.50 866.50 607.50 249.00 44.00 6588.50
1969 188.50 117.00 179.50 485.50 749.50 936.50 1216.00 1211.00 959.50 571.50 261.21 a 132.00 7007.71
1970 77.00 169.00 230.50 326.00 766.50 1045.00 1227.50 1104.50 857.50 430.50 218.00 108.50 e 6560.50
1971 93.00 102.50 262.31 e 209.50 h 560.50 976.00 871.50 j 734.50 k 715.50 f 568.50 291.50 94.00 2948.31
1972 124.00 191.00 520.00 549.00 772.50 1046.00 1271.00 1168.50 955.50 683.00 175.50 69.00 j 7456.00
1973 54.50 165.50 213.50 418.00 790.00 1011.00 1201.25 c 1182.50 981.50 662.50 313.50 108.00 7101.75
1974 146.50 110.96 a 436.77 c 562.00 861.50 1180.50 1176.50 1123.00 920.50 651.00 289.00 75.00 7533.23
1975 112.50 139.00 284.50 390.50 716.00 988.50 1191.00 1208.00 905.00 614.00 290.50 132.00 6971.50
1976 119.00 260.00 340.50 543.00 811.00 1035.50 1160.00 1145.50 904.00 547.50 277.50 75.00 7218.50
1977 111.00 231.00 267.50 567.00 768.00 1067.50 1223.00 1203.50 1011.00 739.00 363.00 253.50 7805.00
1978 190.50 196.50 457.00 542.50 786.50 1082.50 1259.63 a 1135.00 937.50 733.50 359.50 113.00 7793.63
1979 101.00 192.50 336.00 560.00 788.50 1029.50 1239.50 1097.00 1004.50 721.00 222.00 168.50 7460.00
1980 201.00 281.00 338.00 547.00 759.00 1105.00 1315.50 1151.50 964.00 596.00 288.50 251.00 7797.50
1981 177.50 258.00 359.00 680.00 827.00 1141.50 1241.00 1152.50 972.00 652.50 368.00 207.50 8036.50
1982 175.50 253.50 395.00 598.00 780.50 968.50 1198.50 1189.50 985.50 580.00 290.50 95.00 7510.00
1983 150.00 213.50 334.00 418.50 781.50 959.50 1200.50 1175.50 1066.00 690.50 333.00 175.50 7498.00
1984 164.00 153.00 390.50 523.50 975.00 1066.50 1183.50 1139.50 960.50 592.50 302.00 185.50 7636.00
1985 118.50 196.50 423.00 631.00 864.50 1089.00 1231.50 1168.50 877.00 659.00 316.00 127.50 7702.00
1986 205.50 280.50 471.50 639.50 849.00 1089.50 1145.50 1196.00 886.00 602.00 304.00 119.50 7788.50
1987 127.00 164.50 284.50 609.50 781.00 1046.50 1136.00 1116.00 898.50 792.50 287.00 139.00 7382.00
1988 125.00 247.50 362.50 561.00 840.50 1076.00 1242.50 1138.50 898.00 769.50 326.00 122.00 7709.00
1989 113.50 286.00 520.00 715.50 878.00 1067.50 1272.00 1166.50 976.50 659.00 337.00 100.50 8092.00
1990 130.00 174.50 422.00 631.00 818.50 1202.00 1207.00 1078.00 996.50 646.50 350.50 123.00 7779.50
1991 135.00 278.00 294.00 512.00 767.00 950.00 1204.50 1167.50 925.00 691.00 291.50 149.00 7364.50
1992 86.50 260.00 372.00 626.00 842.00 997.50 1174.50 1140.00 974.50 706.00 211.00 157.00 7547.00
1993 243.50 222.50 422.00 574.50 880.00 1053.50 1200.50 1183.50 944.50 665.50 282.00 165.00 7837.00
1994 136.50 217.50 439.50 593.00 837.00 1207.00 1285.50 1272.50 1014.50 661.50 311.50 194.50 8170.50
1995 163.00 348.50 433.00 497.00 749.00 1006.50 1202.00 1255.00 1019.00 701.50 440.50 181.50 7996.50
1996 189.00 390.50 425.00 625.50 939.50 1148.00 1283.00 1191.50 933.00 681.00 354.00 184.00 8344.00
1997 202.00 202.50 482.50 555.00 947.00 1029.50 1227.50 1204.50 1104.50 665.50 0.00 z 82.50 7703.00
1998 176.00 138.50 358.00 466.50 811.00 1004.00 1271.50 1238.00 1068.50 704.50 378.00 174.00 7788.50
1999 203.50 247.50 422.50 502.50 830.50 1065.50 1162.50 1165.50 1014.50 678.00 426.00 87.50 7806.00
2000 203.50 281.50 401.00 682.00 984.50 1137.50 1288.00 1198.00 1074.50 661.50 181.00 167.50 8260.50
2001 117.50 196.50 388.50 601.50 937.00 1146.50 1223.00 1189.00 1009.50 760.00 450.00 86.50 8105.50
2002 145.00 233.00 394.00 732.50 869.50 1194.50 1291.50 1187.50 1026.00 631.50 375.00 119.87 a 8199.87
2003 282.00 256.50 403.50 591.00 948.00 1153.00 1365.50 1272.15 d 1089.00 869.50 374.50 166.50 8771.15
2004 204.50 152.50 584.00 594.50 944.00 1099.50 1239.50 1132.50 931.00 695.00 279.50 137.00 7993.50
2005 246.50 162.00 h 221.50 m 589.00 736.50 f 0.00 z 1334.50 1168.50 1040.50 737.00 0.00 z 25.50 y 5116.00
2006 99.50 n 231.00 h 421.48 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 106.50 527.98
2007 61.48 a 199.00 440.50 606.00 957.00 1142.50 1312.00 1247.00 1073.50 760.50 487.50 133.00 8419.98
2008 140.50 0.00 z 0.00 z 568.20 e 820.50 920.50 f 1239.47 b 1215.50 1011.50 718.50 363.00 171.00 6248.17
2009 223.50 253.00 466.50 553.50 968.50 1044.50 1322.31 b 803.50 k 1045.00 684.00 430.50 90.00 7081.31
2010 121.50 158.50 332.00 554.50 768.50 1143.50 1325.50 1261.50 1094.50 793.00 287.00 252.00 8092.00
2011 119.00 157.63 a 381.50 g 687.50 783.00 1143.00 1303.50 1295.50 1061.00 746.07 a 318.21 b 100.23 a 7714.64
2012 180.50 214.00 404.50 666.00 924.00 1198.50 1000.50 f 1263.50 1002.50 568.00 g 449.50 159.13 a 6462.13
2013 132.27 a 110.00 378.00 h 40.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4.50 z 242.27
Period of Record Statistics
MEAN 118.72 179.68 339.69 523.51 775.63 1019.59 1201.55 1135.31 947.66 641.66 294.13 118.78 7355.76
S.D. 62.16 73.59 90.71 87.97 96.37 89.38 64.25 68.10 72.35 81.58 74.81 55.78 588.01
SKEW 0.48 0.29 0.02 -0.08 -0.08 -0.01 0.04 -0.09 -0.09 -0.08 0.07 0.62 -0.07
MAX 301.50 390.50 584.00 732.50 984.50 1207.00 1365.50 1295.50 1104.50 869.50 487.50 265.00 8771.15
MIN 18.08 15.00 148.05 293.50 514.50 762.00 1034.50 996.13 737.50 430.50 79.50 6.50 6031.63
NO YRS 105 103 102 102 101 102 98 101 102 103 97 99 71