LEVELLAND, TEXAS

Monthly Total Growing Degree Days

(415183)

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
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 353.00 88.00 4.00 445.00
1938 6.00 0.00 z 167.50 317.50 581.00 772.00 842.00 867.00 653.00 387.50 100.00 9.00 4702.50
1939 2.50 0.00 150.00 334.00 552.50 811.50 856.50 775.00 625.00 317.50 39.00 0.00 z 4463.50
1940 0.00 z 25.50 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 25.50
1941 0.00 z 0.00 z 53.00 261.50 519.00 650.69 a 808.50 823.00 573.10 a 375.00 86.38 a 19.12 a 4169.29
1942 9.50 20.50 105.50 290.50 539.00 732.50 807.00 753.50 499.50 275.50 223.00 7.00 4263.00
1943 10.50 4.00 41.00 249.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 304.50
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 494.00 26.50 26.00 546.50
1947 10.85 a 8.00 68.50 249.50 499.00 767.50 870.00 0.00 z 0.00 z 431.50 17.50 10.00 2932.35
1948 1.00 18.50 112.50 444.00 618.50 855.50 896.00 878.50 646.00 340.00 46.50 40.00 4897.00
1949 4.00 28.00 115.50 216.50 g 571.00 775.00 899.00 808.50 598.00 299.00 146.50 9.76 d 4254.26
1950 71.50 78.00 93.50 305.00 554.00 836.00 841.00 888.00 583.00 454.50 125.00 30.00 4859.50
1951 0.00 69.00 81.50 249.50 638.50 928.00 1001.50 939.00 651.50 407.00 35.50 52.00 5053.00
1952 52.50 27.45 a 90.50 266.50 589.50 907.00 890.50 1001.76 d 622.50 271.50 86.00 7.50 4813.21
1953 73.88 a 36.00 167.00 225.56 c 498.00 f 1023.00 954.50 890.50 659.00 384.50 58.50 2.00 4474.44
1954 13.50 62.50 130.50 430.00 464.00 812.50 1008.00 935.50 808.00 372.60 e 51.00 e 2.50 p 5088.10
1955 21.50 24.35 e 97.50 q 0.00 z 418.00 i 770.50 820.00 855.50 626.38 a 334.50 72.78 c 47.00 3572.51
1956 32.00 f 45.00 178.50 285.00 729.00 913.50 924.00 826.00 565.50 h 425.06 e 58.00 h 17.88 e 4343.94
1957 29.50 88.67 a 96.50 211.50 468.00 822.12 d 946.50 898.00 583.00 286.00 49.82 b 19.00 4498.60
1958 0.00 24.00 30.00 205.00 611.50 879.00 972.00 914.50 593.00 358.16 c 81.67 c 16.50 g 4668.83
1959 12.50 23.74 e 82.00 g 380.56 c 635.50 501.50 k 881.36 b 911.00 691.50 268.50 47.00 h 7.15 e 3811.81
1960 6.50 13.92 d 110.50 j 398.04 b 593.00 906.50 865.50 670.50 h 658.00 370.28 d 66.50 l 2.00 3813.73
1961 0.00 42.00 118.46 c 366.11 c 683.50 797.88 d 805.00 796.00 608.50 345.00 19.50 l 14.93 d 4577.39
1962 1.50 80.00 f 111.00 358.85 d 745.50 714.60 e 891.00 0.00 z 0.00 z 454.50 133.27 d 42.50 g 3410.22
1963 11.50 57.00 164.00 0.00 z 681.50 770.00 917.00 860.00 647.50 444.00 71.50 1.00 4625.00
1964 4.00 0.00 d 70.50 307.50 534.00 f 774.64 b 923.36 c 876.00 572.00 317.50 102.41 a 41.00 3988.91
1965 27.12 c 9.00 32.00 358.50 584.50 769.00 883.50 808.50 594.00 296.00 167.50 27.50 4557.12
1966 0.50 3.50 130.00 235.00 504.50 760.50 947.50 742.50 572.00 225.50 118.45 a 24.36 c 4264.31
1967 23.50 12.00 226.50 403.50 478.00 751.50 809.00 754.00 536.50 317.00 65.17 a 3.00 4379.67
1968 29.00 12.50 104.00 195.56 c 510.43 b 767.07 a 788.50 767.50 516.50 378.20 a 60.50 3.10 a 4132.86
1969 44.00 13.48 a 22.50 303.00 533.50 746.00 957.00 902.00 571.00 246.00 72.00 10.50 4420.98
1970 23.00 19.00 44.00 239.50 545.00 720.00 890.50 850.00 578.50 242.00 78.00 35.00 4264.50
1971 14.50 17.00 106.50 269.00 518.73 a 819.50 851.50 655.50 552.00 307.00 89.00 32.00 4232.23
1972 20.50 54.00 202.50 406.00 507.00 744.00 761.00 730.00 596.00 307.00 14.50 2.00 4344.50
1973 0.00 3.50 43.50 169.50 482.50 706.00 826.50 780.50 557.50 366.00 112.50 15.00 4063.00
1974 25.50 9.50 240.00 337.50 651.50 757.00 859.00 709.00 364.50 287.00 49.00 2.50 4292.00
1975 8.00 8.00 68.00 215.50 488.00 782.50 728.50 733.00 459.50 284.00 87.50 16.00 3878.50
1976 2.00 98.00 114.00 343.00 439.00 743.50 734.50 798.00 543.00 159.50 42.50 2.50 4019.50
1977 0.00 20.50 66.00 240.50 612.00 820.00 888.00 859.00 733.50 342.50 83.50 30.00 4695.50
1978 3.00 3.00 107.50 410.50 580.00 792.50 930.00 808.07 a 592.00 319.00 83.00 19.00 4647.57
1979 0.00 28.00 58.50 281.50 475.50 676.50 857.00 719.50 602.50 379.50 28.50 15.50 4122.50
1980 19.50 30.00 68.50 210.50 488.00 912.00 946.00 863.00 641.00 285.50 107.00 35.00 4606.00
1981 3.50 44.50 63.00 365.00 527.00 821.50 873.50 726.50 556.00 300.00 104.00 24.00 4408.50
1982 11.00 43.00 125.00 244.00 500.00 696.50 883.00 0.00 z 659.50 286.50 80.00 12.50 3541.00
1983 0.00 7.50 84.00 204.00 482.50 684.00 880.00 856.00 664.00 372.00 139.50 6.50 4380.00
1984 0.50 25.00 75.50 213.00 568.50 752.00 819.50 775.00 505.50 233.50 81.00 24.00 4073.00
1985 0.00 34.00 142.50 356.50 568.50 695.00 846.50 908.00 608.00 291.00 72.50 1.50 4524.00
1986 21.00 107.50 154.00 387.00 546.00 713.50 887.50 807.50 595.00 281.00 58.50 1.50 4560.00
1987 7.00 34.00 50.00 238.50 530.50 735.50 865.50 827.00 550.50 325.00 102.50 32.50 4298.50
1988 2.50 26.50 113.50 244.50 512.50 749.50 837.00 850.50 577.50 349.50 142.00 1.50 4407.00
1989 11.50 32.00 224.00 383.00 662.50 694.00 884.00 797.50 502.50 395.00 100.00 3.50 4689.50
1990 12.00 37.00 114.00 308.50 528.50 980.00 813.50 788.50 677.50 312.50 150.50 12.00 4734.50
1991 0.00 33.50 124.50 327.00 703.00 805.50 823.50 824.50 509.50 368.50 32.50 8.00 4560.00
1992 0.00 28.50 141.00 326.00 487.00 709.50 894.00 773.50 619.00 373.00 66.50 22.50 4440.50
1993 0.00 10.50 92.50 258.50 558.50 828.00 949.00 885.50 579.50 300.50 29.50 13.00 4505.00
1994 10.50 22.00 156.00 292.50 562.50 936.50 954.00 859.50 652.00 366.50 104.00 18.50 4934.50
1995 22.50 70.50 147.00 275.50 542.50 779.00 975.50 877.00 594.50 321.00 98.00 45.50 4748.50
1996 12.00 106.00 101.50 300.00 787.00 843.50 898.00 830.00 586.00 345.00 100.00 41.50 4950.50
1997 31.50 17.00 149.00 176.00 512.50 708.00 919.00 844.00 719.50 351.00 54.00 4.00 4485.50
1998 4.00 18.00 109.00 213.00 724.00 926.50 1042.00 842.50 782.50 426.00 102.50 30.50 5220.50
1999 32.50 70.00 82.00 278.50 499.50 728.50 896.00 951.50 578.50 318.00 162.00 8.00 4605.00
2000 27.50 83.50 124.00 354.50 708.00 736.50 943.50 906.00 716.00 397.50 17.50 2.00 5016.50
2001 0.00 24.50 55.50 368.50 628.50 868.00 1024.50 870.50 621.00 321.00 167.50 15.50 4965.00
2002 26.00 19.50 104.00 348.50 590.50 835.00 859.50 905.00 631.50 273.00 56.50 14.00 4663.00
2003 17.50 38.00 126.50 355.50 617.50 723.00 930.00 895.50 553.50 422.50 118.00 16.50 4814.00
2004 5.50 10.00 203.50 290.50 0.00 z 773.00 836.00 755.50 558.50 335.00 36.00 7.50 3811.00
2005 42.00 41.00 59.00 268.00 543.00 835.50 849.50 787.50 704.50 334.50 129.00 15.50 4609.00
2006 40.50 25.50 159.50 421.00 697.50 878.50 932.50 857.50 510.50 309.00 115.50 16.00 4963.50
2007 5.50 36.00 197.00 209.50 482.00 710.50 826.00 880.50 678.00 439.00 129.50 30.50 4624.00
2008 12.50 20.00 121.50 258.00 564.00 887.50 839.50 797.50 527.50 326.50 93.00 24.00 4471.50
2009 27.00 74.50 199.00 273.00 572.50 833.50 888.00 885.00 555.00 267.50 118.00 0.00 4693.00
2010 4.50 2.50 83.00 284.00 530.00 896.00 802.50 884.50 704.00 354.50 77.50 40.00 4663.00
2011 2.50 61.50 184.50 398.00 562.50 980.00 1028.50 1034.50 622.00 368.00 79.50 0.00 5321.50
2012 11.00 19.00 258.00 459.00 661.50 889.00 921.00 898.50 626.00 281.50 h 0.00 z 0.00 z 4743.00
Period of Record Statistics
MEAN 14.30 32.75 116.21 300.48 570.18 798.84 884.29 838.79 603.48 337.63 86.81 16.89 4561.45
S.D. 16.16 26.26 54.01 71.59 78.62 82.16 66.16 70.92 73.54 61.11 41.63 13.57 313.53
SKEW 1.71 1.18 0.54 0.26 0.75 0.60 0.15 0.00 0.01 0.05 0.55 0.71 0.15
MAX 73.88 107.50 258.00 459.00 787.00 1023.00 1042.00 1034.50 808.00 494.00 223.00 52.00 5321.50
MIN 0.00 0.00 22.50 169.50 439.00 650.69 728.50 655.50 364.50 159.50 14.50 0.00 3878.50
NO YRS 69 69 68 68 66 69 70 66 67 71 67 67 51