PLAINS, TEXAS

Monthly Total Growing Degree Days

(417074)

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
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 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 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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1939 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
1940 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
1941 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
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 47.00 47.00
1947 0.00 z 5.00 87.50 252.93 a 0.00 z 841.03 a 535.00 m 851.00 688.50 390.50 h 0.00 z 0.00 m 2725.97
1948 11.50 16.50 88.50 420.00 617.42 a 873.50 925.19 b 879.88 a 617.40 e 274.35 a 51.21 a 32.50 4807.95
1949 4.00 26.50 g 89.50 203.00 537.00 723.50 870.77 c 789.00 552.00 248.50 122.00 8.27 a 4147.53
1950 59.02 e 67.20 c 50.00 h 292.00 546.00 773.50 773.40 b 759.00 553.00 423.50 81.00 f 16.53 a 4263.15
1951 5.37 e 40.38 b 95.87 d 238.00 523.50 767.50 962.00 888.67 a 623.00 344.50 30.00 a 14.00 f 4518.79
1952 15.50 t 0.00 z 0.00 z 204.50 f 525.34 c 634.50 i 819.36 b 940.00 544.00 216.00 41.00 i 0.00 3044.70
1953 40.76 d 21.00 169.97 b 264.31 a 548.04 c 948.50 942.92 a 892.91 c 334.50 o 265.50 h 31.00 i 11.50 3839.90
1954 30.00 74.15 a 122.97 a 452.78 c 285.50 k 770.77 d 938.00 876.50 690.00 389.00 46.00 23.50 4413.66
1955 14.47 a 11.00 134.33 d 321.35 d 548.70 a 775.38 d 562.50 l 865.33 b 503.50 h 341.53 b 84.23 d 32.07 b 3128.39
1956 19.50 26.21 c 119.35 a 276.43 b 653.67 b 881.38 a 922.50 854.57 a 718.39 b 426.00 38.50 18.50 4955.00
1957 23.50 87.23 b 103.52 c 237.50 453.08 e 732.50 931.00 856.50 580.50 279.00 45.50 20.50 f 4329.83
1958 0.00 14.00 12.29 b 104.00 j 554.50 861.00 955.83 a 885.50 638.00 264.50 86.00 11.50 4283.13
1959 2.07 a 24.50 89.56 d 286.00 605.03 b 798.00 825.63 a 888.50 733.80 e 277.28 d 47.59 a 3.50 4581.45
1960 10.52 c 10.88 a 92.50 253.50 g 570.00 864.00 806.55 c 842.50 673.50 361.00 110.69 a 0.00 4342.14
1961 0.00 29.50 70.50 280.34 a 599.85 a 797.31 d 793.17 b 808.50 588.62 a 355.00 22.00 i 0.00 k 4322.80
1962 1.50 91.00 101.02 b 320.69 a 727.98 a 749.50 879.50 876.04 d 632.50 382.00 94.00 22.50 f 4855.73
1963 10.00 p 56.54 b 38.50 k 424.50 628.30 c 776.67 c 917.60 a 885.50 679.50 470.54 c 106.80 e 0.00 4945.94
1964 6.72 a 0.00 p 0.00 z 0.00 z 0.00 z 547.50 j 966.50 907.50 600.00 347.50 114.00 34.50 2976.72
1965 22.00 9.50 46.50 372.50 606.50 808.00 912.50 804.93 b 631.00 339.00 181.50 23.00 4756.93
1966 1.03 a 0.00 z 98.50 m 240.00 435.66 c 744.31 a 962.00 767.00 614.50 248.00 123.21 b 17.71 c 4153.43
1967 16.00 14.00 216.50 386.90 a 291.00 i 751.50 782.50 724.50 494.46 b 273.50 46.11 c 1.00 3706.97
1968 9.50 12.50 101.50 185.50 459.50 701.00 738.50 753.50 493.00 334.50 50.00 1.00 3840.00
1969 29.50 2.00 19.78 b 288.10 a 526.40 e 433.00 l 923.69 d 881.43 a 591.50 242.50 69.64 b 4.50 3579.04
1970 13.84 c 9.50 34.00 266.50 522.50 708.00 894.50 870.50 617.00 222.00 76.50 27.50 4262.34
1971 24.00 10.50 d 105.00 273.50 517.50 814.00 871.50 668.50 560.50 319.50 87.50 33.00 4285.00
1972 14.00 62.00 217.00 400.50 494.50 745.50 792.00 739.00 608.50 319.00 17.00 6.20 a 4415.20
1973 0.50 3.50 35.13 a 146.38 a 454.00 692.00 807.50 798.00 572.00 364.50 87.50 4.50 3965.51
1974 27.90 a 3.63 a 179.50 297.93 a 641.50 737.59 a 855.71 b 648.13 d 360.00 292.84 c 32.00 3.50 4080.22
1975 11.00 8.00 67.00 185.50 462.50 743.00 715.50 751.00 464.46 b 300.50 85.00 17.50 3810.96
1976 4.50 96.50 127.50 321.50 445.50 748.50 703.00 801.00 550.50 113.00 k 40.00 0.52 a 3839.02
1977 0.00 24.00 67.50 250.00 630.73 e 801.00 875.00 887.00 744.00 361.00 86.90 a 32.50 4759.63
1978 2.00 3.63 a 116.52 b 396.50 568.50 782.50 928.50 848.00 546.60 e 334.00 75.50 s 0.00 p 4526.75
1979 0.00 25.41 a 55.50 281.38 a 471.50 651.00 872.00 741.00 604.50 342.00 f 23.50 23.25 a 3749.04
1980 11.37 a 29.52 a 44.00 187.76 a 0.00 z 0.00 z 974.50 887.50 674.48 a 296.00 97.00 21.50 3223.63
1981 0.00 z 26.00 o 35.50 n 362.00 520.36 c 772.24 a 880.00 733.50 0.00 z 306.50 f 103.20 e 18.00 3389.30
1982 0.00 i 33.50 145.00 0.00 z 435.50 683.00 731.00 860.50 736.50 235.50 51.72 a 1.50 i 3912.22
1983 0.00 15.00 170.00 228.50 431.50 624.00 866.50 916.00 754.04 d 356.50 139.50 0.00 4501.54
1984 0.00 0.00 0.00 z 143.00 589.00 709.50 770.00 763.00 505.50 228.50 108.50 21.00 3838.00
1985 0.00 z 16.50 91.93 b 362.00 531.00 619.00 810.50 859.00 600.00 a 256.50 41.50 16.00 4203.93
1986 0.00 z 0.00 z 244.00 263.00 k 545.50 587.50 848.50 806.00 595.00 258.52 c 52.50 4.00 3941.52
1987 6.50 0.00 z 11.50 h 0.00 z 453.00 683.50 835.45 a 784.00 538.50 300.50 109.50 22.22 a 3733.17
1988 0.00 a 22.50 109.50 190.00 492.90 a 731.50 769.00 775.50 579.50 366.66 b 0.00 z 0.00 4037.06
1989 11.88 a 37.85 a 227.00 365.50 628.78 a 659.50 845.50 768.00 501.00 372.50 102.50 4.00 4524.02
1990 5.00 31.00 115.00 275.50 471.50 960.00 764.50 766.00 632.50 282.00 136.50 8.00 4447.50
1991 0.00 23.50 112.50 276.50 643.50 788.50 772.00 734.50 106.00 u 379.00 34.00 4.50 3768.50
1992 0.00 29.00 138.50 315.00 505.50 727.00 856.50 745.00 621.50 372.50 58.50 26.50 4395.50
1993 0.00 9.50 109.50 254.00 532.50 794.50 949.00 868.00 587.00 308.50 32.50 6.50 4451.50
1994 8.00 17.50 141.50 287.00 558.00 928.00 970.50 930.50 646.50 370.50 99.00 25.50 4982.50
1995 16.50 72.50 149.00 258.50 562.50 758.00 933.00 878.00 596.00 325.50 100.50 53.00 4703.00
1996 12.00 111.00 105.00 279.50 777.50 841.00 910.50 810.00 564.50 342.50 93.00 36.00 4882.50
1997 30.00 15.00 141.00 185.00 503.00 728.50 908.00 848.00 685.50 395.00 52.50 2.50 4494.00
1998 0.00 z 18.00 109.50 203.00 745.50 920.00 1031.00 839.50 794.50 394.50 21.50 p 0.00 z 5055.50
1999 55.44 e 67.50 124.50 286.50 534.00 744.00 908.00 958.50 606.50 332.50 160.00 6.50 4783.94
2000 45.00 91.50 153.00 376.00 721.00 760.50 944.50 0.00 z 711.00 393.00 14.50 0.00 4210.00
2001 0.00 29.00 58.00 358.50 646.00 879.50 1033.00 906.00 680.00 349.00 137.00 21.50 5097.50
2002 20.50 14.00 70.00 l 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 34.50
2003 0.00 z 0.00 z 0.00 z 340.00 636.00 729.00 929.50 905.50 648.00 448.00 141.50 28.50 4806.00
2004 8.00 8.50 220.50 310.80 e 648.00 803.00 860.50 808.50 593.00 369.23 c 34.00 10.50 4674.53
2005 6.50 30.00 47.00 222.50 520.50 815.00 880.50 800.50 727.50 330.00 84.00 g 12.50 4392.50
2006 28.00 25.00 158.00 403.00 697.00 866.50 930.60 e 630.00 h 512.00 227.00 h 45.50 k 10.50 m 3620.10
2007 4.00 i 8.50 i 156.50 h 104.50 o 280.00 k 405.50 m 412.00 o 693.50 g 375.00 m 294.00 h 81.00 k 16.50 m 0.00
2008 8.00 i 22.50 i 83.50 k 196.00 h 362.50 l 589.50 j 573.50 j 576.00 i 335.50 j 192.50 k 58.50 m 21.00 j 0.00
2009 11.00 k 51.00 j 146.50 g 275.00 578.50 831.50 895.50 904.00 558.00 290.50 111.00 0.00 4444.00
2010 6.00 1.50 79.50 284.50 521.00 914.00 820.50 904.50 704.50 362.50 65.00 31.50 4695.00
2011 3.00 67.00 199.50 411.00 577.00 992.00 1044.18 a 1082.00 639.00 384.00 92.00 0.00 5490.68
2012 6.50 20.00 249.50 457.50 647.50 900.50 920.00 922.50 648.50 269.00 i 0.00 z 0.00 z 4772.50
Period of Record Statistics
MEAN 12.68 30.83 117.15 293.94 560.84 781.57 876.35 835.99 613.66 329.48 79.81 15.10 4563.23
S.D. 14.17 28.11 57.29 76.92 82.79 86.39 79.15 75.96 80.02 58.87 39.45 13.42 387.02
SKEW 1.51 1.25 0.49 0.21 0.53 0.26 -0.19 0.07 -0.27 0.00 0.34 0.69 -0.02
MAX 59.02 111.00 249.50 457.50 777.50 992.00 1044.18 1082.00 794.50 470.54 181.50 53.00 5490.68
MIN 0.00 0.00 12.29 143.00 431.50 587.50 703.00 648.13 360.00 216.00 14.50 0.00 3810.96
NO YRS 54 55 53 56 58 59 61 61 59 56 52 54 26