TOMBSTONE, ARIZONA

Monthly Total Growing Degree Days

(028619)

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
1893 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1190.00 1126.00 0.00 z 0.00 z 0.00 z 0.00 z 2316.00
1894 0.00 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
1895 0.00 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
1896 0.00 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
1897 0.00 z 91.00 r 260.50 g 713.00 1003.50 1131.50 1170.50 1101.50 962.50 663.00 519.00 187.00 7451.50
1898 130.00 359.00 352.50 710.50 851.00 1120.00 1150.50 1106.50 996.50 828.50 385.50 130.00 8120.50
1899 152.00 218.00 452.27 c 686.00 836.50 1050.50 1153.50 1143.00 1104.00 0.00 z 0.00 z 0.00 z 6795.77
1900 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1293.50 1190.50 956.50 772.00 479.50 269.50 4961.50
1901 274.00 211.00 417.00 589.00 899.50 1122.50 1274.00 1139.50 1047.00 761.50 497.50 271.00 8503.50
1902 256.00 284.50 329.00 745.00 914.00 1207.50 1178.50 1107.00 990.50 856.50 0.00 z 0.00 z 7868.50
1903 0.00 z 0.00 z 0.00 z 378.00 m 853.00 1093.00 1214.00 1186.02 b 971.50 770.50 589.00 162.50 k 6677.02
1904 404.50 0.00 z 0.00 z 491.50 j 910.50 1146.00 1183.50 1029.50 898.50 653.00 411.50 196.50 6833.50
1905 257.00 220.00 351.00 501.00 782.50 1104.00 1177.00 1097.50 930.50 723.00 319.00 81.50 7544.00
1906 175.50 248.00 436.00 595.00 840.50 1143.50 1159.50 995.00 945.00 691.50 415.00 227.50 7872.00
1907 219.50 330.50 521.50 646.50 761.50 1024.00 1175.00 1027.50 926.50 699.50 296.50 275.50 7904.00
1908 196.50 318.50 592.00 700.00 807.50 1096.00 1152.50 1133.00 1015.00 732.00 437.00 224.50 8404.50
1909 402.50 264.50 358.50 651.00 810.50 1123.50 1193.00 1082.00 938.50 789.50 464.00 189.00 8266.50
1910 299.00 250.50 615.00 695.00 984.50 1118.00 1172.50 1164.00 1045.00 741.50 465.50 300.50 8851.00
1911 384.00 214.50 606.00 677.00 943.50 1132.50 1141.00 1213.50 1048.00 693.50 335.50 93.00 8482.00
1912 246.50 275.00 374.50 518.00 889.50 1159.00 1120.50 1099.50 1010.00 654.50 404.00 115.00 7866.00
1913 172.50 197.50 393.00 688.00 950.50 1101.50 1190.00 1167.00 1008.00 783.50 466.00 142.50 8260.00
1914 334.00 295.00 507.00 720.50 988.00 1148.00 1121.00 1197.50 1058.50 677.00 471.00 125.00 8642.50
1915 151.00 227.00 365.00 610.50 801.50 1152.50 1220.00 1216.00 1020.00 897.00 468.00 240.00 8368.50
1916 270.50 461.00 599.50 689.00 900.50 1190.50 1212.50 1134.50 1023.00 751.00 444.00 194.00 8870.00
1917 167.50 250.50 403.00 613.50 739.50 1202.50 1272.00 1273.67 b 1101.00 988.26 b 0.00 z 0.00 z 8011.43
1918 0.00 z 0.00 z 541.00 632.50 823.50 1203.50 1217.50 1167.00 1102.00 839.00 363.50 175.50 8065.00
1919 161.00 149.50 394.50 688.00 896.00 1152.50 1109.50 1150.50 945.00 672.50 395.00 336.50 8050.50
1920 248.50 340.00 405.00 508.50 931.00 1100.50 1299.00 0.00 z 1000.50 684.00 452.50 224.00 7193.50
1921 305.00 323.50 574.50 611.50 893.00 1155.00 1164.00 1104.00 1037.50 861.50 532.00 357.50 8919.00
1922 177.50 319.50 404.50 559.50 945.00 1203.00 1214.00 1189.50 1041.50 813.00 336.00 379.50 8582.50
1923 411.50 243.00 384.50 619.50 1018.00 1162.00 1223.00 1009.00 837.50 626.50 393.00 168.00 8095.50
1924 155.50 346.00 310.00 549.50 919.50 1229.50 1212.00 1223.50 1082.00 813.00 551.00 192.00 8583.50
1925 204.50 396.50 579.50 718.50 986.50 1050.00 1176.50 1055.50 991.00 736.00 370.00 175.00 8439.50
1926 102.50 340.00 414.50 532.50 849.50 1170.50 1221.00 1176.50 1033.00 789.00 0.00 z 177.00 7806.00
1927 413.00 384.50 457.00 650.50 973.50 1122.00 1220.00 1090.00 973.00 781.00 605.00 137.00 8806.50
1928 286.50 282.00 544.50 649.50 944.00 1139.00 1273.00 1130.00 1060.50 807.50 371.50 227.50 8715.50
1929 168.00 177.50 377.00 603.50 911.50 1190.50 1235.00 1115.00 1046.00 767.00 354.50 376.50 8322.00
1930 192.00 398.00 400.00 730.50 771.50 1131.00 1139.50 1155.00 973.00 752.00 359.00 164.50 8166.00
1931 180.50 241.00 446.00 662.50 936.00 1127.00 1237.50 1073.00 984.00 807.50 334.00 196.50 8225.50
1932 99.00 327.50 418.50 650.50 881.00 1116.00 1199.00 1172.50 1029.60 e 760.50 528.00 174.00 8356.10
1933 167.50 161.78 a 495.50 546.00 777.50 1119.50 1232.00 1164.50 1050.50 802.50 505.50 371.00 8393.78
1934 220.00 385.00 502.00 f 745.00 1048.50 1087.00 1252.00 1094.00 833.00 f 905.50 464.00 339.00 7540.00
1935 331.00 256.50 453.63 a 669.00 774.50 1172.00 1268.50 1106.00 950.00 822.00 429.50 235.50 8468.13
1936 250.50 256.00 493.50 726.00 1010.00 1209.50 1261.00 1182.00 758.00 f 811.50 433.50 251.00 7884.50
1937 73.00 288.00 412.00 650.50 968.50 1120.50 1245.50 1195.50 1059.50 843.50 512.50 295.50 8664.50
1938 302.00 309.00 427.00 652.50 879.50 1170.00 958.00 f 1169.50 1001.00 843.00 407.50 344.50 7505.50
1939 207.50 110.50 489.00 700.50 942.50 1171.50 1204.50 1110.50 961.00 688.50 433.50 0.00 z 8019.50
1940 239.00 222.50 525.00 634.50 898.50 1073.00 1188.00 0.00 z 1015.50 801.00 394.50 357.50 7349.00
1941 206.50 308.50 440.00 528.50 946.00 1112.00 1216.00 1169.98 b 1026.00 727.00 486.50 268.50 8435.48
1942 308.40 b 228.00 410.00 617.50 998.50 1178.50 1322.00 1195.00 1071.43 b 760.50 454.00 h 315.50 8405.33
1943 303.50 388.50 525.50 783.50 1002.50 1151.00 1250.50 1158.50 1057.50 756.50 470.00 208.00 9055.50
1944 163.00 144.50 h 348.50 568.00 914.00 1107.50 1227.50 1199.00 978.50 824.00 331.50 236.00 7897.50
1945 202.50 298.00 326.00 602.50 959.50 1089.00 1231.50 1201.50 1026.50 837.00 498.00 192.00 8464.00
1946 133.50 243.50 466.50 812.50 915.50 1254.50 1221.00 1162.00 1065.00 708.50 350.00 344.50 8677.00
1947 0.00 z 0.00 z 365.00 k 628.00 984.00 1074.50 1260.00 1182.00 1115.36 b 854.50 341.50 122.00 7561.86
1948 286.50 264.00 325.50 779.50 995.50 1212.00 1294.50 1158.00 1038.00 784.00 420.00 218.55 a 8776.05
1949 51.50 224.00 0.00 z 0.00 z 992.50 1099.50 1185.00 1259.50 1098.50 0.00 z 601.50 225.50 6737.50
1950 338.50 464.50 583.50 803.00 908.00 1116.50 1117.50 0.00 z 1033.50 1101.00 660.00 514.82 c 8640.82
1951 318.50 0.00 z 0.00 z 531.00 0.00 z 1083.00 1260.00 0.00 z 0.00 z 870.00 453.50 241.00 4757.00
1952 329.50 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 0.00 z 329.50
1953 0.00 z 0.00 z 521.00 629.50 770.50 1212.00 1240.50 1179.00 1111.50 893.00 531.00 215.50 8303.50
1954 338.33 b 426.50 442.00 834.44 c 1000.61 d 1147.00 937.50 h 1064.50 1096.00 904.00 557.00 331.50 8141.88
1955 85.00 r 214.50 479.50 599.50 858.70 a 1125.50 1177.50 1092.00 1068.50 908.50 492.50 421.50 8438.20
1956 383.50 214.50 542.00 610.50 1009.50 1211.50 1177.00 1125.50 1138.50 856.00 384.00 273.00 8925.50
1957 322.00 503.00 467.00 610.00 796.50 1175.50 1254.00 1134.50 1033.50 719.00 310.50 356.00 8681.50
1958 189.50 324.00 295.00 602.50 1059.00 1203.50 1234.00 1133.00 1004.00 746.50 452.00 429.00 8672.00
1959 354.00 265.00 470.00 752.50 897.00 1215.50 1203.50 1088.00 1043.00 792.00 400.00 253.50 8734.00
1960 173.50 165.50 577.00 683.50 914.50 1198.50 1214.50 1186.00 1073.00 733.50 534.50 244.50 8698.50
1961 257.50 308.50 451.00 717.00 961.00 1207.76 a 1241.00 1129.00 990.50 769.00 357.00 242.50 8631.76
1962 191.50 359.00 332.00 800.00 873.50 1091.00 1147.00 1266.50 1056.00 856.50 588.00 334.00 8895.00
1963 302.50 401.50 436.00 588.00 1019.50 1094.50 1267.00 1122.00 1060.50 903.50 446.00 199.00 j 8641.00
1964 198.00 149.00 341.50 560.50 894.00 1108.00 1203.00 1122.50 1010.17 a 890.00 395.17 a 287.00 8158.84
1965 330.50 245.50 364.00 652.50 863.50 1006.50 1191.50 1174.00 998.00 866.50 618.00 299.00 8609.50
1966 160.00 141.00 506.50 691.00 957.50 1129.50 1215.50 1115.00 958.50 787.00 551.00 294.00 8506.50
1967 298.50 353.00 648.00 567.00 832.00 1042.50 1187.19 d 1129.00 956.00 792.00 532.50 186.00 8523.69
1968 254.00 412.50 401.50 513.00 856.50 1171.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3608.50
1969 0.00 z 0.00 z 308.00 686.00 935.50 1111.00 1208.50 1239.50 1053.50 750.50 392.50 316.50 8001.50
1970 221.00 332.00 343.50 518.50 930.50 1167.50 1287.00 1211.00 1004.00 701.00 531.00 351.00 8598.00
1971 375.00 289.33 a 571.50 634.00 863.00 1160.00 1336.50 1154.00 1071.50 683.50 502.50 201.00 8841.83
1972 292.00 404.50 702.00 710.00 907.50 1118.00 1289.00 1180.50 1033.00 771.00 340.50 253.50 9001.50
1973 170.50 283.00 307.50 524.00 918.00 1151.50 1241.00 1231.00 1092.50 859.00 526.50 320.50 8625.00
1974 273.00 259.00 566.50 699.31 a 986.00 1284.00 1198.50 1143.00 961.50 726.00 444.00 161.00 8701.81
1975 259.50 240.50 382.50 491.00 820.50 1115.00 1163.50 1255.50 994.50 802.50 464.50 263.50 8253.00
1976 242.50 356.00 417.00 588.00 844.50 1105.50 1139.00 1143.00 920.00 607.00 366.50 172.05 a 7901.05
1977 161.50 306.00 346.00 664.00 873.50 1196.50 1211.00 1191.50 1029.50 793.50 511.00 386.50 8670.50
1978 246.45 a 224.00 518.00 650.50 907.50 1249.50 1315.50 1182.50 1016.00 851.00 455.50 192.00 8808.45
1979 114.50 277.00 387.00 635.50 810.50 1090.00 1272.50 1134.50 1071.50 879.00 359.50 277.50 8309.00
1980 286.50 386.50 392.50 640.00 842.00 1265.50 1311.50 1177.00 1072.00 731.50 460.50 382.00 8947.50
1981 212.00 276.50 320.00 706.00 867.00 1208.00 1196.00 1169.50 1026.00 722.00 556.50 393.50 8653.00
1982 261.00 333.50 505.50 677.00 882.50 1122.00 1212.00 1168.50 1082.50 815.00 427.50 225.50 8712.50
1983 244.50 297.50 388.50 494.50 894.00 1074.50 1217.50 1202.50 1120.00 715.00 401.00 320.50 8370.00
1984 227.50 271.00 511.00 598.00 1062.50 1097.50 1175.50 1117.50 1038.50 660.30 a 437.50 291.50 8488.30
1985 139.50 a 263.50 466.00 701.50 938.00 1184.50 1254.50 1187.50 949.00 749.17 a 423.50 312.00 8568.67
1986 388.50 384.50 577.50 767.00 997.00 1178.00 1173.00 1198.00 979.50 731.00 451.50 236.00 9061.50
1987 229.50 234.00 370.50 700.50 842.00 1169.00 1269.00 1119.50 976.50 920.00 426.00 272.80 a 8529.30
1988 243.50 392.50 492.50 636.00 963.00 1176.50 1240.00 1115.00 945.00 833.00 436.00 217.00 8690.00
1989 199.00 389.00 645.50 917.50 1058.00 1202.00 1280.50 1163.50 1068.50 769.00 479.00 243.00 9414.50
1990 240.00 222.00 492.00 697.50 870.50 1281.50 1155.00 1047.50 1016.00 790.00 468.50 215.50 8496.00
1991 221.00 332.00 347.50 630.50 903.50 1016.00 1199.00 1202.50 1012.00 853.00 432.00 233.50 8382.50
1992 144.50 335.00 427.00 726.00 875.50 1094.00 1172.50 1102.50 1048.00 845.50 313.00 219.00 8302.50
1993 268.50 236.50 505.50 718.00 1002.50 1198.50 1231.00 1197.50 1067.00 813.00 445.50 324.50 9008.00
1994 352.00 310.00 550.00 731.50 964.50 1254.50 1243.00 1179.50 996.00 746.50 355.00 244.00 8926.50
1995 201.50 409.50 483.50 544.50 799.00 1099.00 1282.50 1248.00 1055.50 910.00 629.00 328.00 8990.00
1996 339.00 422.50 486.50 722.50 1072.00 1259.00 1287.50 1196.50 988.50 796.00 539.50 357.50 9467.00
1997 262.00 292.50 626.50 610.00 1054.50 1173.00 1313.50 1222.50 1149.00 786.50 567.00 170.50 9227.50
1998 325.00 199.50 455.18 a 543.50 928.00 1115.50 1273.50 1225.50 1115.00 834.00 521.00 277.00 8812.68
1999 340.50 425.50 602.00 621.50 965.50 1137.00 1159.50 1125.50 1032.50 850.00 641.50 245.86 b 9146.86
2000 400.00 408.50 500.13 a 788.00 1106.00 1174.50 1285.50 1179.50 1141.00 736.00 269.50 350.30 a 9338.93
2001 186.00 290.50 471.50 482.50 i 1050.50 1237.78 c 1209.60 e 1205.68 c 1119.50 883.50 527.14 b 227.50 8409.20
2002 296.00 317.50 452.50 792.50 939.50 1260.50 1240.50 1167.00 1064.50 718.50 493.50 195.00 8937.50
2003 419.50 278.50 392.00 610.00 979.50 1176.00 1320.00 1198.00 1060.20 e 915.10 e 433.00 288.50 9070.30
2004 218.00 172.50 600.00 590.50 944.00 1131.00 1201.00 1150.00 997.00 749.00 297.00 193.50 8243.50
2005 262.00 231.00 409.50 656.00 975.50 0.00 z 1315.00 1095.00 1068.00 803.00 0.00 z 346.00 7161.00
2006 308.00 369.50 445.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 214.50 1337.50
2007 132.50 277.00 487.50 645.00 947.50 1207.50 1217.00 1148.00 1034.00 831.00 619.00 205.50 8751.50
2008 205.50 327.50 0.00 z 727.76 a 847.50 1192.00 1155.78 a 1154.50 1019.00 865.00 492.50 332.50 8319.54
2009 385.50 403.00 589.00 660.00 1037.00 1095.00 1283.50 1260.50 1063.50 744.50 0.00 z 0.00 z 8521.50
2010 241.50 246.50 373.00 646.50 895.00 1220.00 1262.00 1203.50 1128.50 855.50 460.00 441.50 8973.50
2011 265.00 294.50 611.73 a 756.00 895.26 b 1253.00 1233.80 a 1237.50 1121.38 a 828.00 448.00 213.38 a 9157.56
2012 401.00 383.00 563.50 832.00 1063.50 1290.00 1221.92 a 1253.00 1042.50 915.02 a 576.00 308.00 9849.43
2013 206.67 a 201.00 649.97 a 51.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4.00 z 1057.63
Period of Record Statistics
MEAN 249.47 295.94 461.30 654.99 918.63 1152.24 1220.53 1156.30 1028.37 792.19 453.54 258.79 8619.47
S.D. 83.23 79.11 93.95 83.72 79.26 59.85 51.08 56.08 56.92 79.48 84.99 81.48 390.67
SKEW 0.14 0.15 0.32 0.25 -0.01 0.12 0.10 -0.35 -0.30 0.42 0.19 0.36 0.14
MAX 419.50 503.00 702.00 917.50 1106.00 1290.00 1336.50 1273.67 1149.00 1101.00 660.00 514.82 9849.43
MIN 51.50 110.50 295.00 491.00 739.50 1006.50 1109.50 995.00 837.50 607.00 269.50 81.50 7544.00
NO YRS 109 106 107 109 112 112 112 110 110 111 106 107 83