DUNCAN, ARIZONA

Monthly Total Growing Degree Days

(022754)

Base Temperature = 40 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 260.50 t 941.50 1247.00 1187.00 947.50 641.50 332.00 110.50 5407.00
1902 82.67 d 129.50 221.00 535.50 774.00 1022.50 1080.87 a 1155.50 902.50 634.50 278.50 99.50 6916.53
1903 75.50 80.50 299.50 520.00 687.50 925.50 1215.50 1182.00 905.50 506.50 277.50 0.00 z 6675.50
1904 13.00 197.50 410.00 0.00 z 751.50 973.27 d 0.00 z 1191.95 a 877.50 b 621.50 246.50 64.50 5347.22
1905 109.61 c 200.00 333.00 456.00 674.00 1037.50 1150.50 1192.00 952.50 657.50 283.00 22.00 7067.61
1906 66.77 e 199.50 354.50 526.00 718.00 1009.00 1196.08 a 1076.50 895.00 577.00 0.00 z 0.00 z 6618.35
1907 0.00 z 0.00 z 480.00 555.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1035.50
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 627.12 d 858.00 1063.00 1233.50 1180.00 956.00 621.50 127.00 98.00 6764.12
1949 83.59 c 118.50 327.00 513.00 713.00 941.50 1130.00 1033.50 937.50 0.00 z 328.50 110.50 6236.59
1950 99.00 188.50 340.00 590.00 708.00 988.00 1153.00 1087.00 856.50 769.50 304.00 128.50 7212.00
1951 64.14 b 158.50 280.00 484.00 816.50 902.50 1296.00 1193.50 1003.00 699.00 248.00 110.50 7255.64
1952 131.50 72.00 182.00 528.00 831.00 1045.50 1210.00 1206.50 950.50 637.00 180.00 23.50 6997.50
1953 102.50 104.00 370.50 518.50 649.50 1098.50 1256.50 1157.00 907.50 601.50 293.00 47.00 7106.00
1954 109.00 233.00 360.50 675.00 863.50 1030.00 1234.50 1114.50 1006.00 720.50 305.50 107.00 7759.00
1955 62.50 104.74 a 360.00 505.50 808.50 988.50 1155.50 1130.00 915.00 685.00 263.50 146.00 7124.74
1956 128.50 90.00 340.00 512.00 843.50 1164.50 1161.00 1070.50 938.00 632.50 135.54 b 60.97 a 7077.00
1957 196.00 375.50 364.50 503.50 728.50 1079.00 1252.00 1103.00 853.50 594.50 167.00 111.00 7328.00
1958 37.50 235.50 251.50 539.50 901.00 1119.00 1189.50 1193.00 948.00 637.50 271.50 102.00 7425.50
1959 121.50 135.00 289.50 625.00 777.00 1127.00 1224.50 1127.50 903.00 619.00 242.50 142.50 7334.00
1960 51.50 65.50 413.00 550.50 755.00 1069.50 1167.00 1169.50 969.50 610.00 308.00 35.00 7164.00
1961 55.50 136.50 354.50 518.00 793.50 1083.50 1208.00 1117.50 882.00 557.50 195.00 93.00 6994.50
1962 84.50 233.33 d 203.50 636.50 746.00 950.50 1161.50 1163.50 978.00 641.50 327.50 118.00 7244.33
1963 31.50 223.50 328.00 522.50 871.50 950.50 1258.00 1118.50 980.00 680.00 283.50 30.00 7277.50
1964 29.00 22.50 237.00 484.50 837.50 1007.50 1266.50 1194.50 909.00 644.50 211.00 91.50 6935.00
1965 133.50 143.00 299.00 549.00 737.50 912.50 1236.50 1181.00 913.50 606.00 365.50 116.00 7193.00
1966 28.93 a 59.50 368.50 565.50 842.50 992.00 1264.00 1158.88 a 916.50 563.00 325.00 88.50 7172.82
1967 67.50 196.00 442.00 517.00 765.50 1022.00 1248.00 1136.00 915.00 615.35 a 309.83 a 47.00 7281.18
1968 73.88 a 266.50 349.00 484.50 787.50 1050.00 1157.50 1043.15 a 859.50 622.50 257.00 32.00 6983.03
1969 182.50 137.00 258.50 593.00 838.00 1021.00 1247.50 1250.00 962.00 608.50 247.50 144.67 a 7490.17
1970 91.50 188.50 297.00 419.50 804.50 1057.50 1233.50 1178.50 893.50 458.00 233.50 95.00 6950.50
1971 83.50 s 160.50 351.00 517.00 737.50 632.00 j 1307.37 e 1131.00 941.00 407.50 f 278.50 62.50 5486.37
1972 74.83 b 160.00 507.50 533.50 767.50 975.00 1209.55 c 1140.80 a 931.00 683.50 149.00 68.50 7200.68
1973 47.50 134.50 241.50 397.00 795.50 965.00 942.50 g 1143.00 0.00 z 593.02 d 261.50 39.50 4618.02
1974 113.00 49.50 402.00 497.50 906.23 a 1166.38 a 1214.00 1113.00 943.50 674.50 246.50 51.00 7377.11
1975 80.00 119.50 297.00 370.00 691.00 960.50 1211.00 922.00 g 885.00 566.00 185.50 57.50 5423.00
1976 20.00 192.50 230.00 474.00 747.50 959.50 1146.00 1148.00 575.50 j 532.50 222.00 13.50 5685.50
1977 74.00 137.00 186.00 524.50 723.50 1048.50 1253.36 b 1215.50 936.00 693.50 294.00 155.52 a 7241.38
1978 138.00 167.00 424.00 85.50 y 567.50 i 1066.50 1261.50 1143.50 941.50 687.50 307.00 68.50 6205.00
1979 54.00 107.50 241.00 448.00 701.50 970.50 1236.00 1097.00 982.00 656.50 163.00 76.50 6733.50
1980 129.50 225.50 289.50 506.50 695.00 1097.00 1341.50 898.00 h 992.00 537.50 232.00 146.50 6192.50
1981 146.50 210.00 316.00 641.50 840.00 1159.50 1305.00 1188.50 988.50 643.50 289.00 111.50 7839.50
1982 104.50 213.50 329.50 531.50 767.00 962.00 1253.50 1227.00 985.50 537.00 246.50 86.50 7244.00
1983 90.50 153.50 315.00 338.50 713.00 951.50 1225.00 1214.00 1072.00 698.50 283.50 90.00 7145.00
1984 83.50 60.00 292.50 426.50 890.50 1056.50 1227.50 1149.50 949.50 549.00 233.50 140.50 7059.00
1985 46.50 141.50 358.00 564.50 829.00 1062.50 1232.50 1165.00 861.50 610.50 253.50 99.50 7224.50
1986 140.00 227.50 420.50 593.50 819.00 1095.00 1196.50 1255.50 912.50 599.50 275.50 97.50 7632.50
1987 66.00 109.00 243.50 557.00 764.00 1052.50 1160.50 1140.00 895.50 767.50 249.50 84.00 7089.00
1988 68.50 195.00 286.00 505.50 807.50 1104.00 1264.00 1189.00 884.50 774.00 281.50 72.00 7431.50
1989 80.50 232.50 441.00 686.00 874.00 1088.00 1321.00 1245.00 978.00 635.00 277.00 37.50 7895.50
1990 18.50 z 116.50 l 420.50 675.50 836.00 1233.00 1220.00 1095.00 1031.50 626.00 319.00 74.50 7531.00
1991 89.50 231.00 263.50 498.00 762.00 963.00 1193.00 1165.00 917.50 674.50 226.00 132.00 7115.00
1992 50.00 215.00 374.50 601.50 804.50 966.00 1174.50 1150.00 949.50 681.00 172.00 89.50 7228.00
1993 217.50 171.00 385.00 533.00 869.00 1052.00 1254.00 1197.50 922.50 629.00 225.50 82.50 7538.50
1994 66.50 165.50 426.50 571.00 834.00 1234.50 1285.00 1292.50 1027.50 644.00 272.50 168.50 7988.00
1995 115.50 290.00 371.50 446.50 743.50 1010.00 1200.50 1264.50 1005.00 682.00 405.00 133.00 7667.00
1996 101.00 354.00 344.00 597.00 938.50 1177.00 1334.50 1214.50 918.50 657.00 320.50 110.00 8066.50
1997 132.00 154.50 420.00 530.50 945.50 1039.00 1255.50 1230.00 1106.00 616.50 309.00 59.00 7797.50
1998 97.00 114.50 324.00 439.00 789.00 1023.50 1294.50 1232.50 1063.50 697.50 322.50 140.50 7538.00
1999 132.00 203.00 441.50 520.00 863.50 1086.00 1238.00 852.50 i 1064.00 675.50 382.50 69.00 6675.00
2000 181.00 259.45 a 387.00 696.50 1026.50 1196.50 1359.00 1258.00 1078.00 678.50 167.00 101.50 8388.95
2001 71.00 158.00 355.50 595.50 957.50 1155.50 1292.00 1230.50 1020.00 764.50 418.00 64.00 8082.00
2002 80.50 169.50 337.00 730.00 874.00 1223.50 1308.00 1235.50 1036.00 660.50 293.50 99.50 8047.50
2003 213.00 203.00 343.50 551.00 925.00 1134.00 1403.50 1326.00 1092.50 844.50 334.50 98.00 8468.50
2004 154.00 132.50 538.50 567.00 913.00 1102.00 1260.50 1181.50 944.00 658.00 269.00 91.50 7811.50
2005 201.00 228.50 355.00 570.00 916.00 0.00 z 1321.00 1232.00 1054.00 734.00 0.00 z 119.50 6731.00
2006 109.00 212.50 377.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 65.50 764.50
2007 53.50 194.00 446.50 627.00 941.00 1160.00 1307.50 1257.00 0.00 z 736.50 414.50 123.50 7261.00
2008 90.00 218.50 0.00 z 549.00 832.50 1160.50 1253.50 1226.50 967.00 672.00 325.50 129.00 7424.00
2009 144.00 211.50 448.50 0.00 z 970.00 1078.50 1388.50 1295.00 1015.00 0.00 z 0.00 z 0.00 z 6551.00
2010 70.50 159.00 323.00 581.50 779.00 1125.50 1307.00 1264.50 1082.00 735.50 240.50 172.00 7840.00
2011 69.00 142.00 444.50 686.90 a 789.00 1148.50 1369.50 1355.39 d 1064.50 705.00 271.00 0.00 z 8045.29
2012 118.50 186.50 378.00 658.00 931.50 1234.66 a 1309.50 1302.50 1021.50 656.50 377.00 126.00 8300.16
2013 103.50 91.00 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 194.50
Period of Record Statistics
MEAN 96.03 170.36 344.79 543.16 811.64 1056.12 1243.07 1182.14 959.60 646.72 270.75 92.26 7417.25
S.D. 45.89 66.24 75.61 77.79 81.56 85.13 64.02 65.84 64.07 67.87 63.89 37.37 414.83
SKEW 0.73 0.37 0.03 0.04 0.31 0.30 0.17 0.18 0.48 0.06 -0.02 -0.07 0.83
MAX 217.50 375.50 538.50 730.00 1026.50 1234.66 1403.50 1355.39 1106.00 844.50 418.00 172.00 8468.50
MIN 13.00 22.50 182.00 338.50 649.50 902.50 1080.87 1033.50 853.50 458.00 127.00 13.50 6733.50
NO YRS 68 69 69 67 68 68 68 67 67 67 67 67 51