PLAINS, TEXAS

Monthly Total Growing Degree Days

(417074)

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
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 238.50 238.50
1947 0.00 z 79.50 275.50 506.38 a 0.00 z 1141.03 a 715.00 m 1161.00 988.50 620.50 h 0.00 z 46.50 m 4151.91
1948 82.00 109.50 272.00 713.00 927.42 a 1173.50 1235.19 b 1189.88 a 917.40 e 576.60 a 206.38 a 172.00 7574.87
1949 44.50 117.00 g 346.00 448.00 847.00 1023.50 1180.77 c 1099.00 852.00 541.00 388.50 113.15 a 6883.42
1950 248.00 e 245.28 c 204.50 h 567.50 856.00 1073.50 1083.40 b 1069.00 853.00 733.50 261.50 f 148.28 a 6877.46
1951 103.73 e 207.85 b 296.80 d 500.00 833.50 1067.50 1272.00 1198.67 a 923.00 651.50 193.45 a 118.50 f 7247.99
1952 93.50 t 0.00 z 0.00 z 427.00 f 827.59 c 844.50 i 1129.36 b 1250.00 844.00 509.00 129.50 i 43.00 4602.95
1953 213.56 d 150.00 440.95 b 554.48 a 850.29 c 1248.50 1252.92 a 1202.91 c 484.50 o 492.50 h 193.50 i 78.00 5991.60
1954 173.50 265.48 a 333.25 a 747.22 c 482.50 k 1070.77 d 1248.00 1186.50 990.00 680.00 284.00 143.00 7121.72
1955 86.80 a 100.00 357.07 d 608.65 d 858.70 a 1075.38 d 752.50 l 1175.33 b 723.50 h 645.12 b 253.27 d 166.22 b 5326.55
1956 117.00 131.06 c 378.72 a 555.54 b 963.67 b 1181.38 a 1232.50 1164.57 a 1018.39 b 733.00 203.00 155.00 7833.82
1957 143.00 289.69 b 359.82 c 497.00 763.08 e 1032.50 1241.00 1166.50 880.50 559.50 177.00 148.50 f 7109.59
1958 36.50 105.00 141.10 b 275.50 j 864.50 1161.00 1265.83 a 1195.50 938.00 537.00 307.00 112.00 6663.44
1959 93.00 a 139.00 298.52 d 535.00 915.03 b 1098.00 1135.63 a 1198.50 1033.80 e 573.50 d 213.10 a 100.00 7333.09
1960 69.20 c 60.59 a 271.50 475.50 g 880.00 1164.00 1116.55 c 1152.50 973.50 666.50 331.55 a 50.50 6736.39
1961 39.50 135.00 272.00 545.69 a 909.85 a 1097.31 d 1103.17 b 1118.50 888.62 a 664.50 111.50 i 30.50 k 6774.14
1962 58.50 284.50 306.79 b 608.28 a 1037.98 a 1049.50 1189.50 1186.04 d 932.50 692.00 340.00 146.00 f 7685.59
1963 50.50 p 203.54 b 180.50 k 719.50 938.30 c 1076.67 c 1227.60 a 1195.50 979.50 780.54 c 322.80 e 62.00 7505.94
1964 118.32 a 9.00 p 0.00 z 0.00 z 0.00 z 747.50 j 1276.50 1217.50 900.00 657.50 306.50 150.50 4626.82
1965 149.00 92.00 202.50 664.00 916.50 1108.00 1222.50 1114.93 b 931.00 649.00 456.50 169.50 7675.43
1966 47.02 a 0.00 z 252.00 m 527.50 741.79 c 1044.31 a 1272.00 1077.00 914.50 545.00 368.04 b 97.43 c 6634.58
1967 118.50 104.00 462.50 686.90 a 504.50 i 1051.50 1092.50 1034.50 794.46 b 567.50 242.78 c 58.50 6213.64
1968 101.50 91.00 296.00 456.00 769.50 1001.00 1048.50 1063.50 793.00 627.00 211.00 76.50 6534.50
1969 185.50 74.50 125.60 b 586.03 a 834.62 e 613.00 l 1233.69 d 1191.43 a 891.50 491.00 237.32 b 150.50 6001.69
1970 99.09 c 123.00 225.50 544.00 829.50 1008.00 1204.50 1180.50 917.00 472.50 257.50 189.00 7050.09
1971 188.50 133.58 d 320.00 544.00 827.50 1114.00 1181.50 978.50 854.00 622.50 314.50 158.00 7236.58
1972 152.00 194.50 474.00 689.50 804.50 1045.50 1102.00 1049.00 908.50 604.50 128.50 94.55 a 7247.05
1973 59.50 79.00 267.12 a 366.72 a 764.00 992.00 1117.50 1108.00 871.00 668.50 305.50 100.50 6699.34
1974 103.85 a 114.07 a 449.50 582.93 a 951.50 1037.59 a 1165.71 b 958.13 d 659.50 596.20 c 219.00 68.50 6906.47
1975 94.50 92.00 266.50 444.00 772.50 1043.00 1025.50 1061.00 756.96 b 610.50 278.50 139.50 6584.46
1976 86.00 320.00 338.50 621.50 755.50 1048.50 1013.00 1111.00 850.50 284.50 k 190.50 59.93 a 6394.93
1977 26.50 124.50 287.50 536.50 940.73 e 1101.00 1185.00 1197.00 1044.00 668.00 313.45 a 180.50 7604.68
1978 41.50 47.19 a 335.66 b 688.00 862.50 1082.50 1238.50 1158.00 846.60 e 635.50 172.00 s 8.00 p 6935.94
1979 46.50 107.85 a 269.00 557.07 a 777.00 951.00 1182.00 1051.00 904.50 581.00 f 146.00 128.13 a 6120.05
1980 73.37 a 176.07 a 250.50 459.83 a 0.00 z 0.00 z 1284.50 1197.50 974.48 a 584.50 263.50 189.00 5453.25
1981 0.00 z 94.50 o 180.50 n 647.50 830.36 c 1072.24 a 1190.00 1043.50 0.00 z 537.00 f 358.20 e 171.00 5312.80
1982 10.50 i 155.00 453.50 0.00 z 745.00 983.00 1041.00 1170.50 1036.50 529.50 246.72 a 56.50 i 6360.72
1983 40.50 183.00 466.50 500.00 741.50 924.00 1176.50 1226.00 1054.04 d 662.50 354.50 84.00 7413.04
1984 16.50 73.50 0.00 z 430.00 899.00 1009.50 1080.00 1073.00 792.00 514.50 321.50 167.50 6377.00
1985 0.00 z 112.00 355.43 b 659.00 841.00 919.00 1120.50 1169.00 898.45 a 560.00 270.50 140.50 7045.38
1986 0.00 z 0.00 z 545.50 453.00 k 855.50 887.50 1158.50 1116.00 895.00 564.09 c 241.00 67.00 6330.09
1987 80.50 0.00 z 83.00 h 0.00 z 763.00 983.50 1145.45 a 1094.00 838.50 610.50 286.50 133.82 a 5935.77
1988 51.15 a 146.00 310.50 463.00 802.90 a 1031.50 1079.00 1085.50 879.50 676.66 b 0.00 z 75.50 6601.21
1989 171.53 a 177.85 a 452.50 656.00 938.78 a 959.50 1155.50 1078.00 799.00 656.50 294.50 66.50 7406.17
1990 102.00 158.50 327.00 551.00 775.00 1260.00 1074.50 1076.00 932.50 583.00 361.00 103.50 7304.00
1991 40.00 171.00 359.00 573.00 953.50 1088.50 1082.00 1044.50 196.00 u 671.50 184.00 104.00 6271.00
1992 55.00 225.00 427.50 595.00 815.50 1027.00 1166.50 1055.00 921.50 676.50 202.00 142.50 7309.00
1993 74.00 118.00 337.00 548.00 842.50 1094.50 1259.00 1178.00 887.00 586.00 200.50 122.00 7246.50
1994 87.00 135.00 375.50 553.50 868.00 1228.00 1280.50 1240.50 946.50 678.50 328.00 185.50 7906.50
1995 129.50 261.00 359.00 525.00 872.50 1058.00 1243.00 1188.00 890.00 635.50 335.00 178.00 7674.50
1996 121.50 296.50 289.50 554.50 1087.50 1141.00 1220.50 1120.00 863.50 631.00 305.00 200.00 7830.50
1997 136.00 105.50 397.50 426.50 813.00 1028.50 1218.00 1158.00 985.50 689.00 230.50 80.50 7268.50
1998 0.00 z 138.50 297.50 497.00 1055.50 1220.00 1341.00 1149.50 1094.50 704.50 122.50 p 0.00 z 7498.00
1999 255.15 e 267.50 367.50 568.50 844.00 1044.00 1218.00 1268.50 903.50 624.50 419.00 113.50 7893.65
2000 194.50 316.50 428.00 658.00 1031.00 1060.50 1254.50 0.00 z 1011.00 666.00 115.50 31.00 6766.50
2001 46.50 183.50 251.50 652.50 956.00 1179.50 1343.00 1216.00 980.00 656.50 368.00 132.00 7965.00
2002 146.00 103.00 187.50 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 249.00
2003 0.00 z 0.00 z 0.00 z 624.00 946.00 1029.00 1239.50 1215.50 948.00 754.00 364.00 146.00 7266.00
2004 132.00 106.00 481.00 601.20 e 958.00 1103.00 1170.50 1118.50 893.00 679.23 c 206.50 143.50 7592.43
2005 127.50 142.00 286.50 508.00 812.50 1115.00 1190.50 1110.50 1027.50 629.50 249.00 g 130.00 7079.50
2006 181.00 151.00 387.50 703.00 1007.00 1166.50 1240.60 e 860.00 h 812.00 456.50 h 170.50 k 71.00 m 5648.60
2007 47.00 i 112.50 i 365.00 h 248.00 o 480.00 k 575.50 m 572.00 o 933.50 g 545.00 m 517.50 h 208.00 k 79.00 m 0.00
2008 58.50 i 144.00 i 223.00 k 410.00 h 552.50 l 789.50 j 783.50 j 796.00 i 535.50 j 371.00 k 189.50 m 100.50 j 0.00
2009 76.50 k 167.00 j 340.00 g 555.50 888.50 1131.50 1205.50 1214.00 858.00 562.00 330.50 44.50 6790.00
2010 63.00 53.50 299.00 567.00 829.50 1214.00 1130.50 1214.50 1004.50 672.50 265.50 158.00 7471.50
2011 57.00 200.50 476.50 708.00 882.00 1292.00 1354.18 a 1392.00 939.00 677.50 289.00 39.50 8307.18
2012 131.50 146.00 498.00 757.50 957.50 1200.50 1230.00 1232.50 948.50 476.00 i 0.00 z 0.00 z 7102.00
Period of Record Statistics
MEAN 104.43 154.64 342.44 573.98 869.53 1081.57 1186.34 1145.99 912.94 626.69 275.70 121.33 7418.03
S.D. 56.86 70.19 89.36 88.41 83.43 86.39 79.15 75.96 80.81 66.57 74.18 48.51 431.64
SKEW 0.72 0.80 0.05 0.09 0.55 0.26 -0.19 0.08 -0.28 -0.20 0.02 0.00 -0.29
MAX 255.15 320.00 545.50 757.50 1087.50 1292.00 1354.18 1392.00 1094.50 780.54 456.50 238.50 8307.18
MIN 16.50 47.19 125.60 366.72 741.50 887.50 1013.00 958.13 659.50 472.50 115.50 31.00 6534.50
NO YRS 54 55 53 56 58 59 61 61 59 56 52 54 26