TUCSON INTL AP, ARIZONA

Monthly Total Growing Degree Days

(028820)

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
1930 0.00 z 239.62 b 245.00 571.00 594.00 973.00 1096.50 1078.00 886.00 575.00 304.62 d 77.00 6639.73
1931 95.00 122.00 287.00 543.00 795.00 1006.50 1201.50 1011.00 952.00 653.00 235.00 53.50 6954.50
1932 19.50 164.00 259.00 453.00 699.00 915.00 1089.50 1082.50 952.50 594.50 372.50 0.00 z 6601.00
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 954.50 0.00 z 0.00 z 0.00 z 954.50
1939 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1003.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1003.00
1940 0.00 z 0.00 z 341.00 491.00 830.00 1002.00 1149.07 a 1068.98 a 923.00 641.50 219.50 206.31 b 6872.36
1941 100.50 183.00 220.00 295.00 710.00 907.50 1128.00 1028.00 888.62 a 0.00 z 0.00 z 0.00 z 5460.62
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 0.00 z 0.00 z 0.00 z 1141.50 1094.00 980.50 654.00 138.50 84.00 4092.50
1949 19.00 97.00 240.50 525.50 724.50 989.50 1086.00 1058.50 966.50 508.50 429.50 145.50 6790.50
1950 100.50 211.00 334.00 575.50 668.00 949.00 1016.00 1076.00 849.00 830.50 390.00 215.50 7215.00
1951 89.00 135.50 245.00 436.00 743.00 913.50 1203.50 1080.50 995.00 697.50 258.00 108.50 6905.00
1952 100.50 84.50 138.00 451.50 829.00 1000.50 1114.00 1095.00 999.00 817.00 223.50 60.50 6913.00
1953 149.00 114.00 335.50 454.50 583.50 1023.00 1140.00 1127.50 987.00 649.00 372.50 57.50 6993.00
1954 126.50 288.50 292.00 643.00 803.00 991.50 1139.00 1034.50 986.50 749.00 380.50 159.50 7593.50
1955 29.00 92.00 305.50 431.00 676.00 970.00 1070.00 986.50 935.00 752.50 256.00 187.00 6690.50
1956 193.50 61.00 326.50 428.50 798.50 1085.50 1097.00 1053.00 1028.50 625.00 254.00 101.00 7052.00
1957 145.00 312.50 299.00 484.50 655.00 1059.00 1181.00 1059.00 937.00 552.50 153.50 156.00 6994.00
1958 82.50 169.00 157.50 436.50 903.00 1045.00 1142.50 1067.00 913.50 676.50 273.00 193.50 7059.50
1959 138.00 82.50 259.50 576.50 697.00 1061.50 1132.50 984.00 904.50 609.50 254.50 102.50 6802.50
1960 56.00 34.50 345.50 470.00 679.00 1003.50 1115.00 1060.00 934.00 536.00 281.50 75.00 6590.00
1961 88.50 104.50 258.00 486.50 711.00 1040.50 1117.00 986.00 811.00 578.00 150.00 64.50 6395.50
1962 64.50 164.00 135.50 602.00 673.00 909.00 1081.50 1144.50 937.00 638.50 350.50 143.50 6843.50
1963 58.00 226.50 248.50 418.50 843.50 913.00 1165.50 998.50 972.50 719.00 282.00 113.50 6959.00
1964 42.50 29.00 188.50 401.50 719.50 960.00 1120.50 978.00 788.50 684.50 195.50 103.00 6211.00
1965 147.00 128.00 190.00 435.00 623.00 827.50 1085.00 1052.50 804.50 678.00 381.50 124.50 6476.50
1966 35.00 35.00 338.50 503.00 808.00 983.50 1092.50 1019.00 850.00 561.50 335.50 145.50 6707.00
1967 113.00 160.00 375.50 367.00 677.00 919.50 1098.00 1072.50 921.00 669.00 387.50 46.00 6806.00
1968 101.00 266.50 273.00 396.50 723.50 1003.50 1079.50 968.50 921.50 673.00 263.50 107.00 6777.00
1969 187.50 113.00 174.00 495.50 773.50 921.00 1118.00 1126.00 936.00 519.00 261.00 143.50 6768.00
1970 80.50 211.50 192.00 334.00 780.00 1001.50 1151.00 1078.50 790.50 467.50 303.00 92.00 6482.00
1971 148.50 109.50 334.50 383.50 599.00 936.50 1162.00 970.00 873.00 446.50 222.00 46.00 6231.00
1972 55.50 184.00 466.00 474.00 690.50 946.50 1135.50 1018.50 856.50 515.50 105.50 71.00 6519.00
1973 47.00 112.50 87.00 289.50 711.00 940.00 1063.50 1074.00 888.00 641.00 286.50 112.50 6252.50
1974 71.00 93.00 323.50 481.50 753.00 1105.50 1038.50 1021.00 833.00 592.50 225.00 34.00 6571.50
1975 74.00 74.00 202.50 244.00 614.50 914.50 1059.50 1109.00 900.00 604.00 295.00 135.00 6226.00
1976 145.00 247.50 267.00 454.50 758.00 1000.50 1050.50 1093.00 829.00 551.50 323.00 90.00 6809.50
1977 63.00 201.00 195.50 511.50 643.50 1040.50 1147.00 1127.50 959.00 722.00 349.50 216.00 7176.00
1978 115.50 141.00 368.50 454.00 716.00 1072.50 1178.50 1075.00 927.00 735.50 264.50 88.00 7136.00
1979 43.00 134.50 206.00 468.50 687.50 993.50 1162.00 1035.00 1024.00 711.50 236.00 175.00 6876.50
1980 145.50 236.00 230.00 467.50 664.50 1047.50 1197.50 1073.00 913.50 607.50 293.50 260.50 7136.50
1981 155.00 211.00 226.00 571.50 724.50 1083.00 1092.00 1127.00 920.50 561.00 367.50 180.00 7219.00
1982 85.50 160.00 242.00 480.50 691.00 915.00 1079.00 1049.50 875.50 525.50 234.50 91.00 6429.00
1983 122.50 118.00 229.50 314.50 738.00 946.50 1144.00 1054.50 965.50 603.50 257.50 125.50 6619.50
1984 86.50 131.50 325.00 418.00 925.50 991.50 1058.50 1018.50 944.00 504.50 252.50 86.50 6742.50
1985 52.00 158.50 279.00 561.00 802.00 1074.00 1163.00 1118.00 821.50 620.00 249.00 132.50 7030.50
1986 267.50 228.50 432.50 570.50 830.50 1096.00 1099.50 1114.50 871.00 605.50 292.50 90.00 7498.50
1987 122.50 151.00 247.00 602.50 753.00 1087.50 1158.50 1086.00 896.00 779.50 278.00 104.00 7265.50
1988 135.00 270.00 356.50 538.00 818.00 1102.50 1173.00 1113.00 912.00 784.00 288.00 139.50 7629.50
1989 71.00 247.00 470.00 714.50 848.00 1061.00 1237.00 1133.50 1035.50 653.00 358.00 118.50 7947.00
1990 119.50 139.00 375.50 591.00 780.50 1159.00 1083.00 1011.00 964.00 716.00 353.00 119.50 7411.00
1991 87.50 275.50 183.50 455.50 728.50 944.50 1162.50 1135.00 920.50 746.00 271.50 157.00 7067.50
1992 95.50 213.50 291.00 622.00 828.00 1033.50 1139.50 1085.50 1006.00 749.00 205.50 96.00 7365.00
1993 169.50 114.50 352.50 557.50 870.50 1048.50 1176.00 1100.50 941.50 699.00 274.00 141.00 7445.00
1994 147.50 155.50 398.00 558.00 791.00 1176.00 1251.50 1247.00 1024.50 635.00 228.00 140.50 7752.50
1995 104.50 297.50 346.50 444.50 701.50 998.50 1189.50 1157.00 985.00 693.00 391.50 153.00 7462.00
1996 140.00 267.00 344.00 565.50 899.50 1120.50 1197.00 1126.50 830.00 633.00 337.00 152.00 7612.00
1997 131.50 123.50 461.00 475.50 920.50 992.00 1177.00 1108.00 1024.50 618.00 322.00 58.50 7412.00
1998 121.00 56.00 266.50 343.00 709.50 953.50 1130.00 1130.50 977.50 641.00 314.00 133.00 6775.50
1999 140.00 205.00 355.00 380.50 765.50 1014.50 1054.50 1091.00 954.50 765.00 467.50 84.50 7277.50
2000 195.00 215.50 282.00 608.50 935.50 1036.00 1183.00 1081.00 1042.50 563.50 113.50 144.50 7400.50
2001 78.50 109.50 317.50 499.00 907.50 1066.00 1121.50 1111.50 1031.50 720.00 402.50 70.50 7435.50
2002 106.50 204.50 299.50 647.50 799.50 1139.00 1141.50 1118.50 975.00 603.50 340.00 80.00 7455.00
2003 255.50 147.00 311.00 471.00 866.00 1071.00 1215.00 1124.00 982.00 786.00 275.00 150.00 7653.50
2004 114.50 72.50 524.50 488.00 860.00 1045.00 1147.00 1082.00 929.00 615.50 206.50 124.50 7209.00
2005 167.00 163.00 286.50 533.50 848.00 1068.50 1257.50 1051.00 1006.00 705.00 391.50 159.50 7637.00
2006 165.00 233.50 287.50 555.50 898.50 1151.00 1187.50 1044.00 855.00 626.00 406.50 102.00 7512.00
2007 61.50 171.00 415.50 555.50 869.50 1080.00 1174.50 1141.50 988.50 707.50 471.00 74.50 7710.50
2008 88.50 182.00 341.50 548.50 721.50 1109.50 1103.50 1096.50 971.00 709.00 388.50 145.50 7405.50
2009 190.00 220.50 408.50 511.00 932.00 985.50 1242.00 1199.00 1009.50 616.00 432.50 71.00 7817.50
2010 136.50 117.50 270.50 459.50 738.12 b 1088.50 1207.00 1143.50 1040.00 700.00 267.50 235.00 7403.62
2011 94.00 121.50 435.50 592.00 728.50 1084.00 1180.50 1217.50 977.50 719.50 278.00 54.50 7483.00
2012 179.00 166.50 337.50 593.00 899.50 1135.00 1108.00 1183.00 961.50 727.50 448.00 142.50 7881.00
2013 120.50 94.50 495.00 18.50 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 710.00
Period of Record Statistics
MEAN 111.40 160.91 298.26 489.28 763.57 1017.59 1136.84 1080.91 934.46 648.80 296.66 119.86 7075.04
S.D. 51.14 68.15 89.20 91.75 90.63 73.01 53.07 57.30 65.28 84.64 82.02 48.39 447.78
SKEW 0.60 0.20 0.24 -0.29 0.14 -0.03 0.10 0.24 -0.42 -0.13 -0.01 0.59 -0.11
MAX 267.50 312.50 524.50 714.50 935.50 1176.00 1257.50 1247.00 1042.50 830.50 471.00 260.50 7947.00
MIN 19.00 29.00 87.00 244.00 583.50 827.50 1016.00 968.50 788.50 446.50 105.50 34.00 6211.00
NO YRS 68 69 70 69 69 70 70 70 71 69 69 68 65