PENWELL, TEXAS

Monthly Total Growing Degree Days

(416932)

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
1955 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1956 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1957 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1958 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1959 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1960 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1961 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1962 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1963 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 305.50 x 198.00 y 353.50 s 169.50 s 118.50 118.50
1964 171.53 a 140.00 494.45 a 797.50 1112.00 1245.00 1386.00 1378.00 1042.24 a 800.32 a 493.00 264.00 9324.04
1965 299.50 209.50 380.50 858.50 594.50 l 0.00 z 1059.50 g 1251.50 359.50 u 315.00 q 606.00 332.00 3937.50
1966 118.50 163.50 612.50 746.00 1014.00 1182.00 1409.00 1233.80 a 318.50 u 293.50 q 579.50 188.00 h 7058.80
1967 249.50 306.00 737.00 943.00 1066.50 1274.00 1344.37 a 1236.00 0.00 z 540.00 i 469.00 168.50 7793.87
1968 226.50 251.50 469.50 712.50 1071.50 1216.50 711.00 m 0.00 z 1023.75 b 895.50 374.50 41.00 w 6241.75
1969 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 976.00 j 1382.50 1105.00 780.50 426.00 342.50 4036.50
1970 226.50 291.00 425.50 766.00 981.00 1176.00 1345.50 1331.50 1100.50 655.50 408.00 403.52 a 9110.52
1971 436.00 298.00 566.50 748.50 1054.00 1216.50 1339.00 0.00 z 0.00 z 0.00 z 171.50 q 253.37 e 5911.87
1972 188.00 f 271.27 e 659.04 d 901.80 e 981.27 e 1182.69 d 991.00 f 1176.85 d 1055.77 d 594.00 g 189.50 f 131.50 f 6228.69
1973 80.00 h 164.96 e 476.48 d 561.60 e 750.00 f 1148.65 d 990.00 f 1183.54 c 1023.60 e 655.00 f 537.60 e 135.00 h 5096.43
1974 171.69 e 223.39 e 699.88 e 739.62 d 1101.69 e 1171.80 e 1006.50 g 1173.41 d 640.50 f 574.00 f 272.00 f 86.50 f 5281.48
1975 139.50 f 225.83 e 416.71 e 681.92 d 918.67 e 945.00 f 1155.35 e 1210.79 e 728.50 f 595.50 f 306.00 g 196.73 e 4806.00
1976 81.00 j 331.00 f 528.19 e 809.42 d 689.50 f 1180.96 d 918.50 f 952.50 g 930.00 e 408.00 g 225.50 f 121.02 e 3569.60
1977 87.00 h 233.00 h 468.58 e 730.80 e 852.50 g 1248.46 d 1058.50 g 1418.54 d 1245.00 e 592.50 i 335.00 h 178.00 l 5111.38
1978 58.50 i 72.50 f 478.50 f 882.00 e 855.00 g 1193.08 d 1117.50 f 1289.37 d 970.80 e 599.00 f 342.50 f 150.50 i 4335.25
1979 61.50 f 149.00 h 494.28 d 742.80 e 734.50 g 1097.88 d 1093.00 f 1257.71 c 1046.50 861.50 302.50 245.93 a 6049.11
1980 241.28 a 281.00 454.50 651.00 1015.80 c 1318.50 1444.50 1279.00 1043.50 633.00 294.83 a 221.00 8877.91
1981 142.50 311.00 399.00 760.50 909.00 1176.00 1322.50 1171.00 1071.00 784.30 a 548.50 285.00 8880.30
1982 240.00 238.50 521.00 700.50 929.50 1181.00 1379.50 1361.50 1194.50 829.00 396.00 175.50 9146.50
1983 169.50 235.00 501.88 b 605.50 1028.50 1101.00 1362.50 1352.00 1146.50 887.50 572.50 123.48 a 9085.86
1984 72.50 252.50 472.00 685.50 1047.50 1175.50 1257.00 1278.50 1005.00 684.50 305.00 250.00 8485.50
1985 90.50 205.50 506.85 a 812.00 1145.50 1107.00 1228.50 1360.00 1081.50 740.50 502.50 175.31 b 8955.66
1986 227.50 362.50 599.00 893.50 1030.00 1134.00 1265.50 1257.00 1024.50 693.50 357.50 155.50 9000.00
1987 160.00 223.50 345.00 576.00 911.00 1072.00 1239.50 1287.00 988.00 837.50 384.00 192.00 8215.50
1988 102.30 a 236.66 a 458.50 723.50 971.00 1181.50 1234.50 1282.50 1035.00 799.00 495.00 a 169.00 8688.46
1989 223.20 a 257.19 a 565.00 788.50 1117.00 1181.00 1346.50 1272.50 973.00 839.00 429.00 114.00 9105.88
1990 198.00 311.00 467.00 735.00 997.50 1391.00 1219.50 1173.00 1049.50 715.50 488.00 173.50 8918.50
1991 83.00 294.50 528.00 764.00 1142.50 1233.00 1246.00 1210.00 893.00 788.00 273.50 195.00 8650.50
1992 112.50 314.00 528.50 689.00 882.50 1116.00 1290.50 1185.00 1043.50 815.00 314.00 215.50 8506.00
1993 144.00 219.00 484.50 694.50 1023.50 1214.50 1358.50 1317.50 982.50 711.00 311.00 240.00 8700.50
1994 149.00 241.50 538.50 719.00 1004.00 1351.50 1387.50 1327.50 1015.50 816.00 501.21 a 285.50 9336.71
1995 194.50 359.00 485.00 683.50 1026.50 1175.50 1340.50 1324.00 1033.50 825.00 429.50 215.50 9092.00
1996 186.00 389.50 383.50 708.50 1269.00 1313.00 1379.50 1263.50 947.00 751.50 448.50 284.50 9324.00
1997 200.50 201.00 559.00 554.50 958.50 1110.50 1337.50 1296.00 1117.00 796.00 368.00 139.50 8638.00
1998 269.00 255.00 447.00 675.00 1181.00 1374.00 1469.50 1300.50 1214.00 909.00 548.50 250.50 9893.00
1999 298.00 408.00 533.00 799.50 1059.50 1212.50 1359.00 1408.00 1104.00 801.87 a 577.50 196.00 9756.87
2000 306.50 444.50 629.50 829.00 1237.42 a 1191.00 1380.50 1349.00 1165.00 754.00 252.50 125.50 9664.42
2001 98.50 285.00 397.00 820.00 1122.00 1336.00 1459.50 1355.00 1098.50 863.00 524.50 214.00 9573.00
2002 234.50 187.50 443.00 866.50 1079.00 1258.50 1316.00 1397.50 1100.00 741.00 318.50 153.50 9095.50
2003 194.50 237.50 552.00 821.50 1090.00 1208.00 1297.00 1349.00 0.00 z 838.00 472.50 227.00 8287.00
2004 246.50 233.50 616.50 679.50 1087.50 1250.50 1289.50 1223.00 1020.50 751.50 343.20 e 137.00 g 8741.70
2005 269.38 b 199.65 e 417.50 649.00 750.00 g 1228.00 1041.00 f 1215.00 1184.40 e 643.50 h 351.00 f 168.50 j 5162.93
2006 233.50 h 0.00 z 635.50 e 607.00 j 0.00 z 1270.00 1117.50 f 0.00 z 826.00 f 0.00 z 322.50 i 0.00 z 1905.50
2007 61.50 n 0.00 z 577.93 c 619.50 859.00 0.00 z 1183.50 1241.00 0.00 z 0.00 z 448.50 0.00 z 4929.43
2008 167.00 0.00 z 0.00 z 412.50 n 1058.00 1340.50 1234.00 1201.50 919.00 723.00 388.50 220.50 7252.00
2009 190.50 0.00 z 548.50 0.00 z 1080.00 1241.50 1293.00 1313.00 988.50 692.50 469.50 100.50 7917.50
2010 145.50 120.50 404.00 717.00 989.00 1345.00 1247.50 1399.00 1108.00 873.50 433.50 201.50 8984.00
2011 143.50 295.04 a 704.00 924.11 b 1064.00 1471.50 1487.48 a 1518.00 1151.00 854.50 454.50 132.50 9999.00
2012 255.00 305.50 648.50 978.50 1123.00 1383.00 1374.50 1418.77 a 1110.50 605.00 i 0.00 z 0.00 z 8597.27
Period of Record Statistics
MEAN 196.28 261.24 516.95 749.90 1043.47 1226.13 1324.60 1293.54 1058.76 786.50 431.96 207.30 9081.82
S.D. 73.86 69.84 92.81 99.79 90.07 89.21 79.78 81.13 81.31 70.82 95.05 68.71 455.51
SKEW 0.71 0.48 0.43 0.21 0.18 0.64 0.00 0.38 0.22 -0.29 -0.07 0.69 0.52
MAX 436.00 444.50 737.00 978.50 1269.00 1471.50 1487.48 1518.00 1245.00 909.00 606.00 403.52 10200.13
MIN 72.50 120.50 345.00 554.50 859.00 1072.00 1155.35 1171.00 893.00 633.00 252.50 100.50 8215.50
NO YRS 39 40 46 45 40 45 37 45 40 34 39 38 27