CHISOS BASIN, TEXAS

Monthly Total Growing Degree Days

(411715)

Base Temperature = 40 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201210
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
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 250.00 501.50 729.00 960.00 1103.50 636.00 m 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3544.00
1948 219.00 472.29 a 569.22 b 858.00 995.00 1104.50 1073.00 1109.50 862.50 674.52 b 312.00 e 494.00 8743.53
1949 261.50 400.52 e 637.50 585.00 1017.00 1074.00 1073.00 982.00 852.50 658.48 b 469.50 316.00 8327.00
1950 510.00 416.00 617.50 778.50 1002.00 1026.00 1029.00 1006.00 921.00 824.50 500.17 a 369.42 a 9000.09
1951 331.00 407.00 554.00 690.00 988.00 1127.50 1131.00 1135.50 953.50 819.00 304.50 g 362.00 8498.50
1952 467.67 b 337.50 433.00 640.00 c 874.00 1046.50 1008.00 1151.13 a 913.00 656.50 360.50 229.50 8117.31
1953 142.50 o 343.84 c 674.52 b 724.50 924.50 1138.00 1106.50 1001.30 a 873.50 567.50 f 303.50 f 144.50 6931.16
1954 414.00 433.50 570.50 818.79 a 937.75 a 1074.00 1092.00 1039.50 959.50 763.12 a 284.50 k 332.00 8434.66
1955 209.50 203.00 g 641.70 a 803.50 997.00 1072.50 1065.50 1032.00 930.00 767.00 463.50 388.00 8370.20
1956 320.00 399.00 587.50 734.50 1056.00 1092.00 1098.50 1058.00 874.14 a 790.00 370.00 285.00 8664.64
1957 494.50 559.50 520.50 736.50 839.00 1060.00 1130.00 549.00 p 857.40 e 476.50 g 379.00 412.50 6988.90
1958 176.50 343.00 385.50 718.00 907.02 b 1121.00 1188.00 1092.50 898.00 581.52 b 434.00 269.00 8114.03
1959 332.73 a 361.50 442.50 679.50 997.50 1032.50 1006.00 1058.02 d 978.00 e 741.23 c 338.00 267.38 c 8234.86
1960 267.63 a 216.50 586.33 b 758.50 985.00 1113.50 1046.50 1007.50 880.00 813.00 529.00 208.50 8411.96
1961 147.00 323.00 593.50 765.50 1016.05 b 978.00 1008.50 981.00 931.50 786.76 b 401.50 379.50 8311.81
1962 248.52 a 531.50 464.00 775.86 a 1076.73 a 1054.66 a 1094.00 1129.43 a 947.50 830.80 a 492.50 272.05 b 8917.55
1963 276.93 a 334.50 616.00 834.50 990.50 1111.00 1135.78 b 1053.00 853.50 736.00 485.17 a 250.50 8677.38
1964 237.67 a 232.50 554.38 a 812.07 a 1025.00 1025.00 1098.00 1112.00 900.00 671.00 503.50 359.00 8530.12
1965 375.50 241.50 471.50 831.50 954.80 a 1076.50 1101.00 1005.00 916.50 711.50 605.00 353.00 8643.30
1966 173.50 210.00 546.50 749.48 a 913.50 1006.50 1118.50 1019.50 863.00 671.84 b 508.50 251.50 8032.33
1967 282.00 295.50 664.50 883.50 937.50 1066.50 1040.50 948.00 746.00 660.00 444.50 238.00 8206.50
1968 228.00 269.00 371.00 622.50 949.50 1015.00 993.50 1007.00 751.50 764.50 383.00 276.93 a 7631.43
1969 346.00 298.50 294.00 774.50 874.00 1100.50 1138.50 1129.50 894.00 732.50 361.00 340.50 8283.50
1970 238.50 232.00 391.50 761.50 842.50 974.00 1043.50 1041.50 826.00 556.00 405.50 492.50 7805.00
1971 389.50 307.00 553.00 651.50 941.50 998.00 1041.00 880.50 842.00 660.50 484.50 332.00 8081.00
1972 293.50 364.00 663.50 839.00 908.50 1046.50 1050.50 990.00 923.50 781.00 340.00 276.50 8476.50
1973 164.19 d 216.22 a 454.50 563.50 923.50 984.00 1020.50 956.00 867.50 767.00 620.50 276.00 7813.41
1974 356.50 c 281.00 686.50 724.00 1032.50 1061.50 1061.50 989.50 761.00 645.00 395.50 245.86 b 8240.36
1975 249.50 277.00 524.50 695.00 941.00 1105.00 944.00 956.00 794.00 746.00 451.55 a 295.00 7978.55
1976 189.50 447.50 565.00 703.00 795.00 1016.00 922.00 967.00 783.00 470.00 248.00 129.68 a 7235.68
1977 192.00 235.50 453.12 a 649.50 1005.00 1002.00 1053.00 1145.00 1053.00 766.22 a 504.50 426.50 8485.33
1978 241.50 210.00 505.50 809.00 980.00 1057.00 1101.00 970.00 762.50 635.00 479.00 290.50 8041.00
1979 190.00 301.00 503.50 704.00 832.50 946.00 1111.50 977.00 814.50 841.00 330.50 275.50 7827.00
1980 378.50 324.50 479.00 612.00 946.05 c 1178.00 1200.00 1026.50 910.50 570.00 330.50 326.50 8282.05
1981 195.50 294.00 371.50 656.00 884.00 981.50 1064.50 972.50 843.50 656.34 b 504.83 a 347.00 7771.17
1982 307.50 266.50 599.50 717.50 842.00 1040.00 1063.00 1077.00 944.50 714.00 400.50 208.50 8180.50
1983 204.00 211.00 430.50 519.50 896.50 1055.50 1111.50 1045.00 945.00 735.00 418.50 337.12 c 7909.12
1984 155.50 224.50 0.00 z 696.50 954.00 977.50 1014.00 1045.00 842.00 677.00 429.50 461.00 7476.50
1985 149.00 261.50 546.00 702.50 956.50 0.00 z 1015.50 1074.50 855.00 655.00 563.50 284.50 7063.50
1986 267.50 388.50 497.50 837.00 918.50 907.50 1039.00 1013.00 879.50 620.50 400.00 171.50 7940.00
1987 225.50 247.50 339.50 503.28 a 778.50 928.50 1046.00 1018.00 835.86 a 731.00 416.50 327.88 e 7398.02
1988 209.00 295.50 470.50 681.50 883.50 924.00 984.00 991.50 871.00 737.00 514.14 a 251.50 7813.14
1989 288.41 c 313.04 c 565.50 773.79 a 1042.00 1075.00 1098.00 1024.50 842.00 795.31 b 476.00 174.24 b 8467.80
1990 259.37 a 297.00 538.88 a 713.28 a 977.03 b 1156.00 985.91 c 928.97 a 792.00 595.95 b 487.00 323.00 8054.39
1991 205.00 274.00 518.50 712.00 989.00 1046.50 950.00 952.50 720.00 696.50 316.55 a 236.00 7616.55
1992 104.00 219.00 471.50 611.00 750.50 1054.00 1081.00 958.50 880.50 758.00 293.00 367.50 7548.50
1993 292.00 307.50 476.50 669.50 862.00 1016.50 1061.00 1077.00 826.50 663.50 366.72 a 318.00 7936.72
1994 268.00 349.00 488.50 699.00 926.00 1071.00 1125.00 1053.50 885.00 470.50 i 556.00 351.50 7772.50
1995 218.50 395.00 468.50 647.50 1001.50 998.50 1092.50 751.00 i 895.50 753.50 474.00 236.50 o 6945.00
1996 300.50 452.00 376.00 648.50 1140.50 1042.50 1085.50 972.50 859.50 683.00 503.00 328.00 8391.50
1997 213.00 233.50 481.50 484.00 860.00 1007.00 1057.50 1051.50 931.03 a 660.00 406.00 170.00 7555.03
1998 319.00 223.50 442.50 600.50 1097.00 1175.50 1103.50 973.50 909.00 751.50 507.00 287.00 8389.50
1999 321.00 440.50 559.50 784.50 981.00 994.50 1006.00 1066.50 882.00 689.75 a 472.50 191.50 8389.25
2000 380.00 462.50 577.00 775.00 1076.50 952.50 1140.00 1046.50 964.00 649.00 291.00 193.50 8507.50
2001 166.00 361.50 413.85 a 785.69 a 960.50 1088.00 1139.50 1041.71 b 898.50 746.00 481.07 b 239.98 b 8322.30
2002 307.50 136.00 486.00 828.50 1022.50 1059.50 991.00 1044.00 841.50 704.00 345.00 207.50 7973.00
2003 293.00 296.00 446.50 727.00 1008.50 1011.00 946.00 0.00 z 0.00 z 659.00 511.50 258.50 6157.00
2004 233.00 204.50 513.50 621.50 932.50 1003.50 1012.50 930.50 791.50 739.00 336.00 197.50 7515.50
2005 353.00 228.50 406.50 512.50 g 896.50 1066.50 1092.50 994.00 969.00 692.50 470.50 318.00 7487.50
2006 329.50 331.00 609.50 854.50 1044.00 1036.50 1062.00 0.00 z 828.00 0.00 z 509.50 0.00 z 6604.50
2007 133.82 a 278.00 537.00 632.50 840.50 0.00 z 956.50 1028.00 887.50 735.00 437.00 317.50 6783.32
2008 261.00 364.50 493.50 744.50 929.50 1132.00 990.50 937.50 710.00 686.00 393.50 308.45 a 7950.95
2009 303.28 a 0.00 z 538.50 698.50 941.50 1058.00 1125.00 1068.50 763.50 693.50 399.00 203.50 7792.78
2010 156.00 151.00 345.00 646.00 959.50 1103.00 978.50 1073.00 883.50 769.00 472.00 347.00 7883.50
2011 222.50 348.50 702.50 904.50 1027.50 1226.00 1168.50 1203.00 981.00 780.68 a 482.50 232.50 9279.68
2012 294.00 311.50 601.40 a 834.00 973.18 c 1121.50 1054.50 1086.00 906.72 a 633.50 h 0.00 z 0.00 z 7182.80
Period of Record Statistics
MEAN 267.77 313.10 513.69 718.85 950.27 1051.51 1060.99 1027.94 871.22 708.63 435.48 292.34 8158.14
S.D. 85.96 88.31 90.84 91.54 76.89 63.56 61.15 63.03 67.96 72.86 79.70 79.42 422.05
SKEW 0.65 0.56 -0.10 -0.33 -0.23 0.12 -0.12 0.34 -0.20 -0.61 -0.11 0.33 0.20
MAX 510.00 559.50 702.50 904.50 1140.50 1226.00 1200.00 1203.00 1053.00 841.00 620.50 494.00 9279.68
MIN 104.00 136.00 294.00 484.00 750.50 907.50 922.00 880.50 710.00 470.00 248.00 129.68 7235.68
NO YRS 64 64 65 65 66 64 65 61 64 60 61 62 50