AMARILLO INTL AP, TEXAS

Monthly Total Growing Degree Days

(410211)

Base Temperature = 50 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
1948 0.50 7.52 b 52.50 353.50 488.50 750.50 894.00 813.50 619.50 275.50 22.50 18.00 4296.02
1949 0.00 7.50 48.00 197.50 457.00 707.50 873.00 769.50 545.50 279.00 117.50 1.00 4003.00
1950 30.50 47.00 78.50 213.00 492.00 773.50 752.50 734.00 508.00 455.00 58.00 9.50 4151.50
1951 6.00 20.50 42.50 186.50 460.00 664.50 963.00 919.50 598.50 308.00 23.00 28.00 4220.00
1952 28.50 7.00 57.50 187.00 470.00 904.50 881.00 982.00 596.00 259.00 61.00 1.50 4435.00
1953 40.00 2.50 143.00 189.50 492.00 998.50 936.00 838.00 683.00 336.00 59.50 7.50 4725.50
1954 16.00 57.50 75.00 347.00 364.00 797.50 1024.50 927.00 757.00 369.50 83.50 30.50 4849.00
1955 14.50 9.00 106.00 300.00 486.50 649.00 848.00 827.50 611.00 316.00 47.50 34.50 4249.50
1956 9.50 17.50 94.50 154.00 623.50 840.00 856.50 843.50 690.00 393.50 38.00 20.50 4581.00
1957 10.50 48.00 44.50 167.50 332.00 668.00 966.50 839.50 490.00 231.50 21.00 8.00 3827.00
1958 0.00 14.00 8.50 113.50 516.00 779.00 867.00 872.50 613.50 284.50 59.50 5.50 4133.50
1959 0.50 20.50 53.50 244.00 495.50 736.00 789.50 880.50 613.50 182.50 37.00 0.00 4053.00
1960 0.50 0.00 63.50 265.00 470.00 729.00 789.00 812.00 583.00 292.00 50.50 0.00 4054.50
1961 0.00 25.00 74.50 236.00 536.00 718.00 818.50 842.50 527.00 304.00 31.00 21.50 4134.00
1962 1.00 73.50 67.00 248.50 670.50 671.50 869.00 876.00 612.50 359.50 50.00 12.00 4511.00
1963 0.00 43.00 127.00 363.00 591.50 723.50 969.50 861.00 667.50 500.50 84.50 0.00 4931.00
1964 7.00 0.00 28.00 267.50 586.00 793.00 987.00 871.50 588.00 332.00 92.00 21.50 4573.50
1965 16.00 9.00 24.50 291.00 523.00 660.50 885.50 831.50 559.00 293.50 130.50 36.00 4260.00
1966 0.00 0.00 129.50 173.50 498.50 725.00 1019.50 728.50 553.50 262.50 145.50 9.00 4245.00
1967 21.50 12.00 205.50 321.00 420.50 710.00 842.50 775.00 548.50 353.50 61.00 4.00 4275.00
1968 10.00 2.00 107.00 178.00 415.50 744.50 837.00 838.00 573.00 381.00 42.00 2.50 4130.50
1969 18.00 16.50 17.50 300.50 533.50 683.00 1008.50 935.50 631.50 228.00 70.00 6.50 4449.00
1970 10.00 9.50 29.00 226.00 587.00 735.50 950.50 901.00 625.00 205.50 70.50 18.00 4367.50
1971 15.00 12.50 107.00 204.00 459.50 775.00 835.00 688.50 524.50 247.00 45.50 20.00 3933.50
1972 8.50 21.00 153.00 297.50 410.00 708.50 758.00 741.50 576.00 309.00 10.00 0.00 3993.00
1973 2.50 10.00 34.50 140.00 398.00 752.00 870.50 892.50 560.00 370.50 116.00 10.00 4156.50
1974 11.50 6.50 186.00 323.00 665.50 748.50 908.00 732.50 387.00 285.50 39.00 3.50 4296.50
1975 4.00 5.00 61.00 215.50 449.50 698.00 788.00 827.00 476.50 357.00 68.50 12.50 3962.50
1976 4.00 82.00 88.00 208.50 324.00 665.50 768.50 777.00 497.50 138.00 17.50 1.00 3571.50
1977 0.00 18.00 74.50 250.00 534.50 842.00 949.50 850.50 729.00 331.50 55.00 10.00 4644.50
1978 1.00 1.50 105.50 346.00 456.00 762.00 952.00 808.50 620.00 300.50 71.00 14.00 4438.00
1979 0.00 13.50 41.00 184.50 389.00 627.00 838.50 731.00 593.00 339.50 9.50 2.00 3768.50
1980 7.50 21.50 16.00 147.00 369.00 849.00 1018.50 884.00 619.50 256.00 99.00 24.50 4311.50
1981 1.50 46.00 72.00 400.00 482.50 853.50 969.00 756.00 570.50 230.50 64.50 13.50 4459.50
1982 4.00 41.00 82.00 156.50 415.00 664.50 892.00 887.50 631.00 244.00 63.50 1.50 4082.50
1983 0.00 2.50 59.50 154.50 328.00 611.00 929.50 960.50 710.00 328.50 117.00 0.00 4201.00
1984 4.50 1.50 31.00 103.00 523.50 739.00 793.00 783.00 503.50 250.00 68.00 17.50 3817.50
1985 0.00 14.50 95.00 303.50 562.00 751.50 931.50 915.50 588.50 220.50 35.50 0.00 4418.00
1986 25.50 55.50 151.00 294.00 475.00 697.00 947.50 754.50 561.50 204.00 19.00 0.00 4184.50
1987 0.00 15.50 41.50 214.00 448.50 663.00 844.00 784.00 528.00 255.50 71.00 20.50 3885.50
1988 4.00 8.50 64.50 171.00 421.50 699.00 798.50 816.00 530.00 287.00 92.50 3.50 3896.00
1989 19.50 7.00 203.00 341.00 534.00 581.50 810.00 804.50 493.50 361.00 88.50 0.00 4243.50
1990 10.00 9.50 75.00 215.00 444.00 938.00 818.00 814.50 659.50 260.50 123.50 0.00 4367.50
1991 0.00 25.00 100.50 247.00 572.50 740.50 821.50 812.50 520.00 347.00 23.50 5.00 4215.00
1992 0.00 15.50 94.00 273.00 419.00 622.00 823.50 728.00 606.50 321.50 20.00 0.00 z 3923.00
1993 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 720.50 900.00 772.00 536.00 223.00 11.00 4.50 3167.00
1994 10.00 18.00 105.00 231.00 474.00 881.50 849.50 802.50 571.50 262.50 73.00 8.00 4286.50
1995 14.00 44.50 125.50 179.00 360.50 624.00 843.50 875.00 544.00 262.50 64.00 27.00 3963.50
1996 2.50 82.50 58.00 241.00 697.50 767.50 839.50 754.50 480.00 274.50 63.00 35.50 4296.00
1997 21.50 9.00 103.50 113.50 410.00 648.00 862.50 773.00 655.50 289.50 14.50 0.00 3900.50
1998 0.00 4.50 79.50 141.50 595.00 822.00 1002.50 866.50 771.50 325.00 72.50 20.50 4701.00
1999 9.00 42.52 a 67.50 193.00 381.00 654.00 850.00 867.50 490.50 279.52 a 149.50 3.10 a 3987.14
2000 14.47 a 66.50 85.00 262.50 610.50 661.00 931.00 985.50 713.50 321.88 a 7.50 0.00 4659.35
2001 0.00 a 17.00 34.00 337.50 468.50 794.50 1050.50 890.00 612.50 320.50 138.50 14.00 4677.50
2002 17.00 16.50 82.50 322.00 508.50 831.50 899.00 869.00 575.50 157.50 30.50 1.50 4311.00
2003 5.00 25.00 86.50 278.00 522.50 593.50 931.50 907.00 531.00 383.50 81.50 18.50 4363.50
2004 11.00 13.50 156.50 212.00 600.00 701.00 800.50 729.50 598.50 277.00 19.50 6.00 4125.00
2005 25.00 16.00 28.00 173.00 460.50 742.50 864.50 796.00 678.00 258.50 94.00 6.00 4142.00
2006 22.00 15.50 110.00 326.50 598.50 798.50 875.00 762.00 429.00 275.50 88.00 6.50 4307.00
2007 3.50 25.50 173.50 179.00 446.50 669.50 838.50 921.00 671.50 376.50 115.50 15.00 4435.50
2008 21.50 5.22 d 72.50 229.50 507.00 816.50 850.50 762.00 507.00 0.00 z 78.00 18.50 3868.22
2009 11.50 46.00 156.00 217.00 431.50 765.50 872.00 805.00 513.00 187.50 111.00 0.00 4116.00
2010 3.00 0.00 75.00 233.00 440.50 857.00 831.00 878.00 715.00 358.50 62.00 15.50 4468.50
2011 0.50 46.00 115.00 309.00 522.00 973.50 1091.00 1087.00 620.00 320.00 74.00 3.50 5161.50
2012 14.50 16.50 283.00 389.50 606.00 868.00 1012.50 930.00 638.00 208.50 j 0.00 z 0.00 z 4758.00
Period of Record Statistics
MEAN 8.90 21.76 87.64 238.73 487.97 743.69 887.50 835.42 586.63 295.24 64.38 10.45 4265.62
S.D. 9.26 20.68 51.96 72.21 85.13 89.62 77.47 75.49 77.21 66.23 36.38 10.12 297.15
SKEW 1.08 1.34 1.21 0.26 0.29 0.66 0.51 0.57 0.14 0.29 0.41 0.87 0.46
MAX 40.00 82.50 283.00 400.00 697.50 998.50 1091.00 1087.00 771.50 500.50 149.50 36.00 5161.50
MIN 0.00 0.00 8.50 103.00 324.00 581.50 752.50 688.50 387.00 138.00 7.50 0.00 3571.50
NO YRS 64 64 64 64 64 65 65 65 65 63 64 63 61