SALT FLAT, TEXAS

Monthly Total Growing Degree Days

(417920)

Base Temperature = 40 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 199808
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
1978 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 698.50 407.59 a 173.27 c 1279.35
1979 89.79 b 126.50 h 405.30 d 643.00 877.50 1080.00 1283.50 1148.50 921.50 769.50 246.00 130.00 7594.59
1980 239.00 322.50 411.50 626.50 935.50 1330.50 1405.50 972.00 g 1019.00 588.50 280.00 185.00 7343.50
1981 150.35 a 234.50 378.00 731.00 936.00 1204.50 1294.00 1112.50 970.20 e 721.27 a 403.00 230.50 8365.82
1982 155.50 232.00 473.50 685.50 881.50 1170.00 1320.00 1286.50 1071.00 686.00 314.00 89.00 8364.50
1983 127.50 236.50 487.00 575.50 944.50 1118.00 1311.00 1251.50 1099.00 742.50 375.50 142.00 8410.50
1984 85.00 187.00 476.00 688.50 1086.00 1160.00 1254.50 1174.50 950.00 652.00 317.00 207.50 8238.00
1985 110.50 76.50 t 458.50 697.50 1006.00 1148.28 a 1271.00 1260.50 960.00 661.00 383.50 113.00 8069.78
1986 157.50 314.00 483.50 793.00 938.00 1124.50 1216.00 1214.50 986.00 640.00 260.00 75.00 8202.00
1987 103.00 173.50 310.50 540.50 848.50 1083.00 1283.50 1213.50 908.00 790.00 314.00 154.00 7722.00
1988 66.00 k 233.00 400.50 625.00 944.50 1166.00 1219.00 1193.50 939.00 759.50 368.79 a 80.71 b 7929.50
1989 129.00 256.15 a 565.50 791.00 1073.00 1237.50 1321.00 1209.00 986.00 713.00 379.50 83.50 8744.15
1990 117.28 a 241.23 b 422.50 716.50 975.50 1345.50 1199.50 1095.50 968.00 642.50 363.50 141.50 8229.01
1991 78.50 230.00 396.50 614.50 992.50 1175.00 1186.50 1189.00 843.50 693.00 201.00 130.20 a 7730.20
1992 46.00 188.00 414.50 634.00 863.00 1097.00 1267.00 1200.00 1028.00 721.00 188.00 148.00 7794.50
1993 177.00 149.00 430.00 651.50 945.50 1199.50 0.00 z 1281.50 939.00 620.50 243.50 123.00 6760.00
1994 99.50 189.00 455.00 660.50 1009.00 1340.50 1354.50 1311.00 0.00 z 289.00 q 374.00 173.00 6966.00
1995 114.50 299.00 469.50 588.00 183.00 x 0.00 z 1306.13 a 1269.00 993.50 736.50 371.50 153.50 6301.13
1996 118.00 337.50 313.00 631.00 1146.50 1239.00 1248.50 1179.00 920.00 652.00 329.50 163.00 8277.00
1997 127.62 a 135.00 546.50 554.50 524.00 n 1143.50 683.50 o 0.00 z 1089.50 0.00 z 277.50 0.00 z 3874.12
1998 182.00 78.50 386.00 477.50 0.00 z 1252.00 1312.00 1167.00 0.00 z 0.00 z 0.00 z 0.00 z 4855.00
Period of Record Statistics
MEAN 126.71 224.24 434.16 646.25 964.88 1190.22 1280.73 1208.69 977.29 693.74 319.87 141.88 8188.88
S.D. 43.69 68.27 65.11 79.31 81.39 82.68 55.51 59.51 66.03 55.31 66.94 42.57 318.65
SKEW 0.67 -0.18 0.01 0.01 0.63 0.61 0.22 -0.09 0.21 -0.06 -0.50 0.17 -0.21
MAX 239.00 337.50 565.50 793.00 1146.50 1345.50 1405.50 1311.00 1099.00 790.00 407.59 230.50 8744.15
MIN 46.00 78.50 310.50 477.50 848.50 1080.00 1186.50 1095.50 843.50 588.50 188.00 75.00 7722.00
NO YRS 19 18 20 20 17 19 18 18 18 18 20 19 11