SPEARMAN, TEXAS

Monthly Total Growing Degree Days

(418523)

Base Temperature = 50 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 200309
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
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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
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 338.50 s 748.50 473.50 h 354.00 138.00 7.00 1247.50
1928 9.00 19.50 98.50 153.50 439.50 593.00 900.00 778.50 601.50 353.50 18.00 4.50 3969.00
1929 0.00 0.00 68.00 247.00 360.50 710.50 879.50 754.00 f 573.50 306.00 0.00 4.00 3149.00
1930 0.00 60.50 24.50 327.00 471.50 793.50 959.50 931.50 672.00 250.50 51.00 0.00 4541.50
1931 3.00 12.96 a 28.62 e 158.50 386.50 817.00 924.00 799.00 794.50 364.00 90.50 13.50 4392.08
1932 0.00 64.50 43.50 210.50 420.50 579.00 848.00 859.00 564.00 272.00 26.50 9.50 3897.00
1933 7.75 a 6.00 96.00 160.00 532.00 904.00 1020.00 856.00 786.50 338.50 56.50 33.00 4796.25
1934 6.00 25.50 80.50 289.50 582.50 851.50 1091.00 1022.00 575.00 453.00 107.50 2.50 5086.50
1935 6.00 24.00 201.00 241.00 306.90 a 717.50 970.00 967.00 566.50 362.50 21.50 0.00 4383.90
1936 0.00 17.00 103.50 273.00 538.00 802.50 990.00 1034.50 584.50 164.00 0.00 z 1.50 4508.50
1937 0.00 5.00 30.00 0.00 z 527.00 g 743.00 1046.00 1045.50 729.50 338.00 87.00 1.50 4025.50
1938 16.57 b 65.00 g 170.50 211.00 453.50 739.50 943.00 1020.50 656.00 376.50 43.00 4.50 4634.57
1939 2.00 0.00 86.00 220.50 511.50 798.50 972.50 841.50 715.00 312.00 39.00 23.00 4521.50
1940 0.00 21.50 59.00 216.50 485.50 718.00 1019.50 827.50 674.50 401.50 56.00 4.50 4484.00
1941 0.00 0.00 15.50 158.00 440.50 596.50 818.50 792.00 592.50 0.00 z 31.50 1.50 3446.50
1942 0.00 1.50 23.50 206.50 375.00 659.50 843.50 799.00 518.00 283.00 91.00 0.00 3800.50
1943 36.68 a 19.50 74.00 314.50 367.00 778.00 939.50 989.00 597.00 277.00 35.00 0.00 4427.18
1944 0.00 15.50 29.00 102.00 432.00 737.50 824.50 871.00 566.00 234.00 58.50 0.00 3870.00
1945 0.00 5.00 56.00 129.00 437.00 601.50 859.00 870.50 613.00 254.00 48.50 0.00 3873.50
1946 0.00 11.50 79.50 339.50 369.00 0.00 z 979.00 859.50 566.50 240.00 11.00 13.00 3468.50
1947 0.00 1.50 36.00 134.50 332.50 619.50 833.50 915.50 681.50 383.00 g 7.00 0.00 3561.50
1948 1.03 a 4.46 c 32.55 a 258.10 a 454.00 697.00 899.00 810.50 615.50 230.00 36.00 9.50 4047.65
1949 0.00 1.50 28.00 174.50 415.00 664.00 844.00 771.00 506.50 278.50 81.00 0.00 3764.00
1950 5.17 a 12.00 43.50 189.00 458.50 715.00 712.00 726.50 467.00 409.00 36.00 0.50 3774.17
1951 0.00 18.00 31.00 155.50 439.00 609.50 958.50 909.00 561.00 285.00 20.00 24.00 4010.50
1952 40.00 9.32 a 51.50 189.00 489.00 950.00 919.00 990.50 609.00 228.50 56.50 0.00 4532.32
1953 22.00 4.00 107.50 158.50 459.00 948.50 900.50 824.50 641.50 298.00 33.50 2.50 4400.00
1954 4.50 33.50 34.00 312.50 354.50 799.00 1058.00 943.50 767.00 337.50 63.00 16.50 4723.50
1955 12.00 0.00 83.50 288.00 534.00 663.50 930.50 899.00 644.00 320.50 40.00 22.00 4437.00
1956 14.50 11.00 99.00 187.00 626.50 871.50 913.50 898.50 716.50 416.00 39.00 7.50 4800.50
1957 0.50 27.50 29.50 173.50 303.00 616.00 978.50 896.00 505.00 248.50 28.50 8.50 3815.00
1958 0.00 21.50 5.50 110.00 530.50 794.00 848.00 881.00 673.00 312.50 64.50 0.00 4240.50
1959 0.00 9.50 53.50 206.00 525.00 820.50 820.00 946.50 625.50 166.50 23.00 0.00 4196.00
1960 7.00 1.00 62.50 307.50 464.00 758.50 804.50 872.50 600.00 272.50 47.00 1.00 4198.00
1961 0.00 17.92 c 10.50 p 181.67 c 138.50 s 0.00 z 331.00 s 0.00 z 0.00 z 0.00 z 0.00 t 13.78 d 213.36
1962 2.00 f 55.50 h 64.98 e 151.50 k 362.50 n 212.00 t 0.00 z 0.00 z 461.00 h 354.00 43.00 6.00 467.98
1963 0.00 29.50 164.50 395.17 a 657.50 806.50 1050.50 952.00 714.00 528.00 82.50 0.00 5380.17
1964 3.00 0.00 26.50 327.00 646.50 787.50 1025.00 943.50 634.00 308.45 a 52.80 e 15.50 4769.75
1965 16.53 a 5.50 23.50 310.00 539.40 a 686.00 919.00 830.28 a 586.07 b 276.00 114.64 b 33.00 4339.93
1966 0.00 2.00 107.00 201.50 527.50 278.50 t 1054.00 760.50 551.00 269.00 94.14 a 5.00 3571.64
1967 14.50 15.50 197.00 354.00 435.03 a 759.00 884.00 779.00 609.00 380.00 35.00 3.50 4465.53
1968 13.00 0.00 128.50 235.86 a 399.00 785.50 881.50 858.00 616.00 384.50 19.50 0.00 4321.36
1969 13.50 7.26 a 8.50 297.86 b 553.00 698.50 995.50 907.61 d 607.50 213.50 34.50 5.17 a 4342.39
1970 11.00 17.00 23.00 208.00 600.22 b 739.00 964.00 924.00 630.52 a 211.32 a 47.50 18.50 4394.06
1971 6.50 18.50 111.50 245.00 470.00 807.50 901.00 775.50 582.00 310.00 60.00 27.50 4315.00
1972 17.50 36.00 215.00 354.00 503.50 762.00 842.50 804.50 638.00 320.50 16.00 1.00 4510.50
1973 0.00 11.50 45.00 157.50 435.00 771.50 887.00 891.00 554.00 365.00 85.00 8.00 4210.50
1974 8.00 16.00 188.00 334.50 696.50 748.50 948.00 783.50 435.50 324.00 42.00 3.00 4527.50
1975 0.50 0.00 88.50 269.50 512.50 741.00 833.50 890.50 545.50 371.00 55.00 6.00 4313.50
1976 1.03 a 81.00 112.00 285.00 376.50 755.50 843.00 828.50 590.00 176.00 24.50 3.50 4076.53
1977 0.00 19.50 88.50 304.50 580.00 854.50 972.00 874.00 710.50 337.50 54.00 16.00 4811.00
1978 0.00 0.00 150.00 358.00 464.50 801.50 1006.50 899.00 656.00 322.50 84.50 12.00 4754.50
1979 0.00 14.50 77.50 261.21 a 432.00 710.00 929.50 816.50 657.00 420.00 21.50 8.00 4347.71
1980 12.00 24.00 55.00 212.50 422.00 869.50 1075.50 938.50 675.00 301.00 121.50 29.00 4735.50
1981 1.00 82.50 78.50 422.50 468.50 860.00 963.00 830.00 604.00 275.50 52.00 0.50 4638.00
1982 13.50 29.50 85.50 243.00 492.00 623.00 896.00 926.00 703.50 311.50 61.50 5.50 4390.50
1983 0.00 1.50 78.50 159.00 387.00 654.00 969.50 1031.50 750.00 362.50 122.50 0.00 4516.00
1984 1.50 19.00 29.50 107.50 0.00 z 803.50 924.00 878.50 614.00 244.50 62.00 14.50 3698.50
1985 0.00 5.50 95.00 290.00 553.00 749.00 946.50 924.50 648.00 312.00 47.50 0.00 4571.00
1986 50.00 80.00 220.00 394.00 547.00 765.50 1013.50 826.50 669.50 263.00 29.50 0.00 4858.50
1987 0.50 7.50 58.00 255.50 531.00 721.50 880.00 879.50 589.50 304.50 90.00 28.50 4346.00
1988 9.00 15.00 87.50 219.50 478.50 797.00 866.00 909.50 586.00 295.00 120.00 13.50 4396.50
1989 17.00 15.50 223.50 383.50 579.50 635.00 853.00 843.00 534.50 402.00 102.50 2.50 4591.50
1990 21.00 17.50 98.00 268.00 484.00 922.50 867.00 870.00 709.00 327.50 140.50 0.00 4725.00
1991 0.00 29.50 145.50 295.00 643.00 789.50 907.00 874.50 625.50 427.00 32.00 9.50 4778.00
1992 2.00 24.50 136.00 310.00 489.00 662.00 914.50 756.50 684.50 382.50 34.50 18.00 4414.00
1993 0.00 4.00 74.50 230.00 534.00 821.00 976.50 876.00 614.00 289.00 27.00 16.00 4462.00
1994 10.00 18.00 133.82 a 319.00 516.50 903.50 914.50 891.50 637.50 340.50 79.00 13.50 4777.32
1995 30.00 62.00 164.50 194.00 344.00 653.50 893.00 945.50 631.00 339.50 116.50 28.00 4401.50
1996 10.00 85.00 95.50 314.00 746.00 817.00 907.50 803.00 557.50 343.50 83.00 24.00 4786.00
1997 37.00 16.00 138.00 142.50 463.50 750.00 983.50 859.00 731.00 353.50 37.50 0.00 4511.50
1998 1.50 19.50 105.50 200.00 685.50 900.50 1041.50 922.00 849.00 478.50 141.00 38.00 5382.50
1999 19.00 64.50 95.50 243.00 486.00 745.50 998.00 1016.00 635.00 373.00 214.50 19.00 4909.00
2000 25.50 0.00 z 153.50 377.50 717.50 759.50 1039.00 1129.00 863.50 458.00 39.00 0.00 5562.00
2001 0.00 5.70 a 66.00 447.50 590.00 890.00 1163.50 1006.50 708.50 460.00 229.50 32.50 5599.70
2002 31.00 33.00 132.50 393.00 602.50 868.00 962.50 983.50 695.00 0.00 z 0.00 z 8.00 4709.00
2003 11.50 32.00 151.50 346.50 596.00 663.00 1003.50 971.50 592.50 0.00 z 0.00 z 0.00 z 4368.00
Period of Record Statistics
MEAN 8.02 19.82 87.81 252.00 492.75 757.01 934.34 886.57 632.20 322.95 62.11 9.23 4462.13
S.D. 11.12 21.19 54.60 82.39 97.42 90.38 79.57 81.57 79.74 72.87 43.50 10.20 381.36
SKEW 1.73 1.72 0.71 0.24 0.40 0.02 0.15 0.41 0.47 0.22 1.58 1.08 0.45
MAX 50.00 85.00 223.50 447.50 746.00 950.00 1163.50 1129.00 863.50 528.00 229.50 38.00 5599.70
MIN 0.00 0.00 5.50 102.00 303.00 579.00 712.00 726.50 435.50 164.00 0.00 0.00 3764.00
NO YRS 75 73 75 74 72 72 74 74 74 72 73 76 62