TUCSON WFO, ARIZONA

Monthly Total Growing Degree Days

(028815)

Base Temperature = 50 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 200801
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
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 885.00 659.27 a 420.50 165.50 2130.27
1895 99.50 130.50 280.00 468.46 d 767.50 932.50 1121.68 a 1016.50 924.00 584.00 176.00 72.50 6573.14
1896 5.50 z 47.00 r 373.00 415.50 729.50 846.00 f 1085.50 1054.50 919.50 582.50 270.00 129.88 b 5559.88
1897 46.50 62.50 143.50 456.00 795.00 902.50 1110.12 b 1051.23 c 898.27 d 544.00 313.00 63.00 6385.62
1898 45.00 202.50 184.97 a 522.00 233.00 r 731.50 h 1125.00 1078.00 879.00 572.00 177.50 25.00 4810.97
1899 15.00 60.00 215.50 471.50 556.00 927.00 1133.00 1040.50 972.50 529.00 241.50 80.00 6241.50
1900 98.00 94.00 393.00 276.00 764.50 978.00 1187.00 1014.00 799.50 572.50 304.00 97.00 6577.50
1901 100.50 105.00 194.50 354.50 686.00 882.00 1155.00 1079.50 888.50 599.00 342.50 109.50 6496.50
1902 91.50 92.50 143.00 489.50 667.00 994.00 1072.08 a 1058.00 894.50 650.50 182.00 75.00 6409.58
1903 43.50 28.50 175.00 365.50 620.50 912.00 1108.50 1110.00 850.50 539.00 302.50 102.96 c 6158.46
1904 27.00 194.00 317.00 416.50 706.00 956.50 1082.00 1006.00 812.00 569.50 261.00 58.00 6405.50
1905 36.00 98.00 a 143.00 256.00 452.50 831.50 1060.50 1118.50 911.50 611.50 236.00 57.00 5812.00
1906 107.00 151.50 276.50 360.50 610.50 901.00 1121.00 988.00 873.00 588.50 281.50 143.50 6402.50
1907 87.00 171.00 263.50 455.50 645.00 840.00 1111.50 1022.50 899.00 609.00 252.00 83.50 6439.50
1908 67.00 108.50 287.50 425.00 563.50 876.00 1049.50 1004.00 845.00 430.50 267.50 95.50 6019.50
1909 127.00 70.00 125.50 401.50 578.00 941.50 1084.00 1017.50 834.50 549.00 240.50 43.00 6012.00
1910 88.50 77.50 411.50 506.00 784.00 986.00 1112.50 1095.50 962.00 634.00 238.50 129.50 7025.50
1911 200.00 85.50 393.50 445.50 703.00 941.50 1041.00 1087.00 935.50 529.00 95.69 a 48.00 6505.19
1912 81.00 81.50 192.00 270.50 641.00 989.50 980.12 a 1013.00 804.50 486.00 215.00 22.50 5776.62
1913 11.50 44.00 156.50 422.00 654.00 846.00 1039.00 1039.00 841.50 523.00 287.50 49.50 5913.50
1914 147.00 92.50 331.00 475.50 733.50 967.00 1026.50 1061.50 901.00 520.50 313.00 18.60 a 6587.60
1915 27.00 89.50 147.50 336.00 526.50 672.50 h 1155.50 1141.12 b 854.00 0.00 z 0.00 z 0.00 z 4277.12
1916 95.50 249.61 a 366.00 419.50 634.50 904.50 1066.00 1018.00 877.24 a 503.50 179.50 45.50 6359.35
1917 28.00 49.50 161.50 355.50 513.00 966.50 1098.43 a 1027.00 906.72 a 645.50 306.00 108.00 6165.66
1918 47.02 a 149.50 341.00 424.50 609.50 1063.00 1123.50 985.50 941.90 a 617.50 231.50 62.50 6596.91
1919 46.50 21.00 164.50 464.00 683.50 973.00 1026.00 1026.50 806.00 435.50 237.50 99.00 5983.00
1920 127.50 162.00 172.00 259.50 673.50 894.50 1159.50 1010.50 808.97 a 409.89 d 209.00 45.00 5931.85
1921 94.50 145.00 331.50 357.00 590.50 885.00 1056.00 984.50 860.50 637.50 260.50 158.50 6361.00
1922 46.00 132.50 176.00 339.50 727.00 991.50 1105.50 1060.50 918.00 603.50 124.00 121.00 6345.00
1923 163.50 161.00 192.50 424.50 753.00 852.50 1071.00 955.00 802.00 478.50 194.00 73.50 6121.00
1924 39.00 139.00 95.58 a 346.50 739.00 1033.00 1135.50 1119.00 953.00 537.50 286.50 76.00 6499.58
1925 59.50 179.50 331.50 464.50 772.50 909.83 a 1187.19 d 1044.00 848.50 561.00 191.90 a 76.50 6626.41
1926 9.00 157.50 301.50 440.00 682.00 974.00 1100.50 a 1114.00 926.50 656.50 271.00 101.50 6734.00
1927 161.50 183.50 228.50 447.00 720.50 909.00 1147.00 1051.50 872.14 b 592.00 352.00 30.48 a 6695.13
1928 89.00 95.00 319.00 388.00 786.50 951.11 c 1163.53 a 1038.50 933.00 637.50 269.50 77.00 6747.64
1929 47.50 56.50 201.50 368.00 720.00 947.00 1124.50 1060.00 891.00 611.50 138.00 110.00 6275.50
1930 51.50 178.00 211.00 538.00 617.50 976.55 a 1113.50 1095.00 847.00 537.00 276.00 77.50 a 6518.55
1931 82.50 109.00 251.50 515.00 726.00 945.00 1195.00 1000.50 915.00 585.00 198.50 45.50 6568.50
1932 16.50 148.00 238.50 405.52 a 673.50 888.50 1100.00 1089.13 a 919.50 553.50 298.00 48.00 6378.65
1933 18.00 43.00 241.50 320.00 519.25 a 967.76 a 1160.50 1109.50 947.50 680.50 286.50 112.50 6406.51
1934 55.00 183.50 430.50 569.50 879.00 892.00 1172.00 1043.50 883.97 a 640.15 a 270.00 120.12 c 7139.24
1935 126.50 159.50 188.00 441.50 545.50 960.50 1107.50 1002.00 849.50 585.00 142.00 82.00 6189.50
1936 55.00 119.50 296.50 507.50 784.50 1016.50 1139.50 1048.00 829.00 567.76 d 297.93 a 69.50 6731.19
1937 0.00 110.50 190.50 412.50 739.00 936.50 1125.50 1115.00 956.00 651.50 291.11 c 143.00 6671.11
1938 110.50 144.50 237.00 481.03 a 661.00 956.00 1067.50 1032.50 937.00 619.50 0.00 z 123.00 6369.53
1939 72.50 16.00 297.50 516.00 741.93 a 979.00 1153.00 1070.50 885.52 a 543.00 366.50 237.00 6878.45
1940 105.50 107.00 308.50 463.50 572.00 h 979.00 1131.00 1051.00 891.21 a 659.35 e 199.00 200.00 6095.05
1941 96.00 199.50 233.50 317.50 703.50 897.50 1110.00 1027.50 862.00 525.50 302.00 101.00 6375.50
1942 123.50 87.50 168.00 412.50 696.00 937.50 1198.50 1064.50 887.50 530.00 291.00 86.50 6483.00
1943 73.50 190.50 285.50 529.50 728.50 b 934.50 1124.50 1016.50 891.50 606.00 263.50 77.50 f 6644.00
1944 63.00 72.00 209.50 415.00 720.00 914.00 1165.00 1164.00 892.50 667.00 166.50 58.00 6506.50
1945 47.00 f 106.50 175.00 444.50 742.50 857.00 1145.50 1081.50 883.50 581.50 174.50 47.00 6239.00
1946 45.50 83.00 310.50 620.50 698.00 1012.50 1101.00 1039.00 917.00 412.00 129.00 115.50 6483.50
1947 34.00 156.50 252.50 428.50 808.00 947.00 1183.00 1068.50 977.50 615.50 117.00 f 52.50 6523.50
1948 119.50 105.00 156.00 537.50 774.50 996.50 1195.50 1152.50 1028.00 727.00 137.00 114.50 7043.50
1949 34.00 109.00 271.50 544.50 749.50 1013.00 1129.50 1103.00 1014.50 516.00 412.50 140.50 7037.50
1950 99.50 212.00 330.00 582.50 692.00 944.50 1050.00 1098.50 838.50 822.50 398.50 235.00 7303.50
1951 107.00 168.50 293.00 488.50 754.00 916.50 1233.50 1101.00 989.00 684.00 292.00 115.50 7142.50
1952 149.00 114.50 147.00 482.50 835.50 1014.50 1147.00 1145.50 1017.00 793.50 230.00 76.00 7152.00
1953 165.00 135.50 354.50 467.00 598.50 1020.00 1178.50 1171.00 976.50 645.50 379.50 55.00 7146.50
1954 122.00 288.50 296.00 625.50 816.85 a 959.00 1128.00 1029.50 951.00 677.00 310.50 142.00 7345.85
1955 26.50 90.50 287.00 400.00 655.50 934.50 1047.50 992.50 925.00 727.50 253.50 177.00 6517.00
1956 202.00 74.50 343.50 453.50 812.50 1089.50 1109.50 1070.00 1026.00 647.50 281.50 123.50 7233.50
1957 173.00 314.50 341.50 479.00 661.50 1074.50 1189.00 1099.50 950.00 594.00 170.50 176.50 7223.50
1958 110.00 177.50 174.50 451.50 920.00 1053.00 1176.00 1115.50 908.00 702.00 311.00 229.50 7328.50
1959 189.00 119.50 319.00 631.00 747.00 1106.50 1175.50 1010.00 915.52 a 651.50 306.50 149.50 7320.52
1960 97.00 68.50 421.50 563.00 778.00 1097.50 1197.00 1151.00 992.31 d 600.50 349.50 106.00 7421.81
1961 165.50 149.50 350.00 556.50 759.50 1057.00 1137.00 1076.50 871.50 610.00 207.00 84.00 7024.00
1962 103.00 206.00 189.50 613.97 a 712.00 937.00 1131.50 1156.00 978.50 640.50 352.76 a 162.50 7183.22
1963 66.00 232.50 262.47 a 423.00 824.00 880.50 1191.95 a 1028.50 988.45 a 692.52 c 287.50 114.00 6991.38
1964 47.50 35.00 187.66 c 409.50 706.00 952.76 a 1162.50 a 1040.50 855.00 696.50 196.50 110.05 a 6399.47
1965 140.53 a 140.52 a 228.88 a 478.50 633.43 a 833.00 1169.00 1120.50 855.00 b 690.27 a 0.00 z 0.00 z 6289.63
1966 46.00 55.00 344.50 527.50 822.50 1009.50 1165.00 1096.50 893.00 577.50 312.00 113.50 6962.50
1967 63.00 135.85 a 381.30 a 368.28 a 687.50 935.00 1123.75 a 1086.50 944.00 687.00 401.50 94.50 6908.18
1968 145.00 322.00 355.50 462.00 769.00 1056.67 c 1162.50 b 1034.00 918.50 688.00 273.00 108.00 7294.17
1969 212.00 144.50 216.50 574.50 826.31 b 973.50 1212.00 1230.50 1031.50 615.50 337.50 b 196.50 7570.81
1970 119.50 275.50 217.00 376.00 847.50 1046.50 1188.50 1147.50 866.50 513.00 376.00 133.00 7106.50
1971 186.00 166.00 399.50 460.00 677.50 1005.50 1219.50 1003.50 910.50 508.50 300.00 80.00 6916.50
1972 126.50 266.50 543.00 564.50 798.00 1013.50 1230.00 1094.00 930.00 635.00 192.50 137.50 7531.00
1973 106.00 185.00 172.50 419.50 839.50 1008.50 1168.50 1188.50 1023.50 760.50 371.50 183.50 7427.00
1974 141.50 179.00 408.00 534.00 836.50 1157.00 1121.50 1093.50 923.50 696.00 218.50 h 56.12 b 7146.62
1975 121.50 134.00 286.75 e 394.04 d 734.00 1004.50 1116.00 1201.50 972.50 667.50 340.50 159.50 7132.29
1976 178.00 287.50 326.50 509.50 821.50 1065.00 1120.50 1194.00 905.50 607.00 357.50 138.50 7511.00
1977 86.00 192.00 217.50 561.50 712.00 1103.50 1239.50 1213.50 1027.50 762.50 389.00 282.50 7787.00
1978 159.00 179.50 440.50 519.00 774.50 1122.00 1246.50 1159.50 1006.50 797.00 301.00 87.00 7792.00
1979 42.50 152.00 274.00 538.00 758.00 1059.50 1209.50 1100.00 1079.50 752.00 279.50 240.50 7485.00
1980 196.50 274.00 308.00 533.50 730.50 1114.50 1262.50 1148.00 1020.00 725.00 412.50 361.50 8086.50
1981 259.00 290.50 329.50 689.50 801.00 1099.50 1130.50 1199.00 1014.50 643.00 418.50 234.00 8108.50
1982 111.50 236.50 333.50 611.50 821.00 1035.00 1117.50 1119.50 966.00 612.00 320.50 138.00 7422.50
1983 176.00 174.50 294.00 370.00 779.00 995.00 1199.00 1122.50 1018.50 676.00 306.50 178.50 7289.50
1984 132.00 177.00 420.50 488.00 964.00 1027.00 1085.50 1074.50 1003.50 563.00 264.50 107.00 7306.50
1985 94.00 200.00 348.50 622.00 859.00 1120.00 1199.00 1161.50 884.50 700.00 251.50 178.50 7618.50
1986 341.50 273.00 475.00 608.50 885.00 1135.00 1098.00 1100.50 899.50 643.00 354.00 129.50 7942.50
1987 151.50 214.00 305.50 645.00 797.50 1102.00 1233.50 1129.00 930.50 809.50 345.50 147.50 7811.00
1988 141.00 275.00 391.00 552.00 846.50 1125.50 1209.00 1154.50 968.00 835.00 329.50 173.00 8000.00
1989 101.50 304.50 532.00 774.50 912.50 1106.50 1256.00 1155.00 1054.50 677.50 382.00 141.00 8397.50
1990 121.50 149.50 381.50 610.50 815.00 1186.50 1086.50 1018.00 976.00 731.50 388.50 150.00 7615.00
1991 111.50 301.00 235.00 530.00 791.50 1003.50 1196.50 1164.00 982.00 777.00 291.00 182.00 7565.00
1992 121.00 276.50 336.00 720.00 892.00 1113.50 1197.50 1148.00 1072.00 810.50 254.00 135.00 8076.00
1993 247.50 202.00 450.50 654.50 972.50 1137.00 1253.00 1169.50 1021.00 769.50 410.50 174.50 8462.00
1994 165.50 205.50 443.50 618.50 861.00 1274.00 1344.00 1325.50 1118.00 761.00 303.50 204.00 8624.00
1995 175.00 374.50 446.50 496.50 792.00 1049.00 1272.50 1215.50 1057.50 777.50 464.00 201.50 8322.00
1996 195.50 322.00 437.00 657.00 999.00 1198.50 1255.50 1159.00 870.50 670.00 371.50 168.50 8304.00
1997 156.50 172.00 554.00 0.00 z 1053.50 1148.50 1324.50 1274.00 0.00 z 675.50 0.00 z 0.00 z 6358.50
1998 119.50 57.08 b 272.00 374.00 740.50 971.50 1144.50 1134.00 985.50 661.50 313.50 137.50 6911.08
1999 149.50 210.00 374.07 a 358.33 c 793.50 1030.00 1053.00 1093.50 972.50 747.00 492.78 c 75.29 c 7349.46
2000 201.50 c 253.00 323.50 660.50 964.32 c 1057.50 1201.00 1093.50 1044.50 577.00 121.00 147.00 7644.32
2001 88.50 125.50 368.50 536.50 941.50 1097.50 1138.00 1136.00 1066.00 736.50 426.00 81.00 7741.50
2002 129.00 225.00 331.50 683.00 842.00 1150.00 1161.00 1131.00 1001.00 630.00 358.00 105.00 7746.50
2003 270.00 162.50 337.50 511.50 891.00 1096.00 1237.00 1150.50 1011.00 817.00 300.50 178.00 7962.50
2004 145.00 96.00 560.50 536.00 903.00 1080.50 1162.00 1113.00 952.00 638.00 238.00 146.00 7570.00
2005 187.00 197.50 329.50 566.50 879.00 0.00 z 1257.50 1075.50 1025.00 730.50 0.00 z 173.00 6421.00
2006 183.50 260.50 321.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 418.50 110.00 1293.50
2007 0.00 z 204.50 460.50 593.00 912.00 1103.50 1167.50 1165.50 1011.00 733.00 488.50 82.50 7921.50
2008 111.50 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 111.50
Period of Record Statistics
MEAN 109.55 158.60 294.62 481.28 750.42 998.64 1147.60 1090.56 931.61 632.87 287.41 119.39 6996.25
S.D. 62.30 76.93 101.25 103.79 110.57 89.87 64.55 66.76 70.53 92.35 83.57 58.77 671.40
SKEW 0.68 0.44 0.38 0.22 -0.01 0.39 0.28 0.58 0.25 0.01 0.03 0.96 0.33
MAX 341.50 374.50 560.50 774.50 1053.50 1274.00 1344.00 1325.50 1118.00 835.00 492.78 361.50 8624.00
MIN 0.00 16.00 95.58 256.00 452.50 831.50 980.12 955.00 799.50 409.89 95.69 18.60 5776.62
NO YRS 111 112 113 111 110 108 112 112 112 112 107 110 99