SILVERTON, TEXAS

Monthly Total Growing Degree Days

(418323)

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 0.00 z 0.00
1947 0.00 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
1948 0.00 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
1949 0.00 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
1950 0.00 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
1951 0.00 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
1952 0.00 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
1953 0.00 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
1954 0.00 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
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 63.50 r 0.00 z 0.00
1962 46.50 b 265.50 266.00 537.50 979.00 957.50 1136.50 1133.50 887.00 659.00 289.50 130.50 7288.00
1963 43.50 162.00 360.00 686.50 877.00 992.00 1187.00 1155.00 463.50 q 775.00 358.27 d 58.00 6654.27
1964 85.50 0.00 z 148.00 j 0.00 z 0.00 z 0.00 z 1222.50 0.00 z 0.00 z 591.14 b 271.00 110.50 2280.64
1965 118.04 e 88.85 b 103.50 562.00 848.50 970.50 0.00 z 1071.50 0.00 z 561.00 0.00 z 142.50 4466.38
1966 0.00 z 0.00 z 339.00 0.00 z 0.00 z 1027.50 1272.55 a 1014.50 817.00 490.00 335.00 100.00 5395.55
1967 114.00 66.00 444.50 637.00 698.50 1027.00 1100.00 1067.50 808.00 609.00 233.00 73.50 6878.00
1968 94.50 63.50 268.50 418.50 691.50 977.00 1118.00 1079.50 803.00 629.50 185.00 49.50 6378.00
1969 119.50 74.50 87.50 533.50 770.00 952.50 1275.00 1194.50 840.50 435.50 211.50 97.00 6591.50
1970 76.50 89.00 155.00 456.50 839.00 1013.50 1180.50 1155.50 858.00 445.50 197.00 142.08 a 6608.08
1971 100.50 90.50 233.00 482.50 759.50 1047.50 1159.50 970.00 818.00 586.50 239.00 99.00 6585.50
1972 84.00 134.50 392.00 631.00 746.50 1005.50 1060.50 1033.50 880.00 579.00 101.00 57.50 6705.00
1973 42.50 59.00 219.00 313.50 688.50 986.00 1126.00 1089.00 796.55 a 650.50 314.00 80.08 a 6364.64
1974 80.50 117.00 395.77 a 550.00 894.00 988.00 1201.00 1002.00 635.00 557.00 198.50 42.50 6661.27
1975 63.55 a 49.00 202.00 429.50 722.50 1012.00 1057.50 1093.50 750.50 576.50 248.50 115.50 6320.55
1976 77.00 267.50 261.00 526.00 633.50 987.50 1013.50 1094.50 822.50 364.00 166.50 49.50 6263.00
1977 4.50 112.50 237.31 b 488.28 a 838.03 a 1115.00 1206.00 1160.43 a 1013.28 a 606.50 264.50 124.50 7170.83
1978 31.00 20.00 277.50 641.00 742.00 1048.00 1245.50 1080.50 900.00 601.29 b 242.00 78.50 6907.29
1979 26.00 89.50 237.00 462.50 735.50 941.50 1136.50 1005.50 870.00 646.00 106.50 85.00 6341.50
1980 67.00 111.50 215.50 414.50 727.50 1167.50 1328.00 1207.50 906.00 522.00 226.50 154.50 7048.00
1981 44.00 161.50 249.00 613.00 768.50 1112.50 1240.00 1062.00 887.50 564.50 318.50 114.50 7135.50
1982 105.40 a 133.50 293.00 470.50 762.50 884.00 1191.00 1185.50 957.50 559.50 229.00 82.50 6853.90
1983 42.00 68.50 225.00 349.00 681.50 895.50 1230.00 1230.50 971.50 634.00 294.00 37.50 6659.00
1984 38.50 87.00 194.50 379.50 822.00 1065.00 1143.50 1106.50 800.00 492.50 232.00 127.50 6488.50
1985 12.00 96.00 286.50 568.00 876.50 988.50 1157.00 1210.50 888.00 546.00 204.00 42.00 6875.00
1986 129.50 242.50 378.00 609.50 801.00 975.00 1232.50 1112.00 870.50 517.00 188.00 40.00 7095.50
1987 66.00 116.00 205.00 464.00 792.00 981.50 1119.00 1111.00 848.50 602.50 270.00 98.00 6673.50
1988 38.00 102.50 247.50 428.00 763.50 1010.00 1098.00 1116.00 842.50 584.00 299.50 73.00 6602.50
1989 110.00 65.50 400.50 605.50 848.50 912.00 1152.00 1100.00 777.50 655.00 261.50 48.50 6936.50
1990 89.50 129.50 269.00 490.50 740.50 1196.00 1115.00 1118.50 960.00 558.50 345.00 90.50 7102.50
1991 23.50 157.50 346.00 584.00 878.00 1035.50 1118.50 1105.00 786.00 638.50 143.50 79.00 6895.00
1992 28.00 186.50 354.00 544.00 719.50 928.00 1138.00 1038.50 914.00 641.00 179.00 79.00 6749.50
1993 33.50 82.50 239.50 472.00 750.50 1034.50 1229.00 1120.50 870.50 513.50 132.00 95.50 6573.50
1994 61.00 78.00 334.50 488.50 730.50 1162.00 1195.00 1138.50 906.50 610.50 256.50 101.50 7063.00
1995 110.00 199.50 333.50 457.50 719.00 946.50 1189.50 1132.50 849.50 574.50 310.50 136.50 6959.00
1996 90.50 240.50 222.00 526.00 1021.50 1074.00 1153.50 1092.00 802.00 563.00 239.50 154.50 7179.00
1997 110.00 101.00 338.50 337.00 712.00 938.50 1174.50 1104.00 936.50 568.00 194.00 50.00 6564.00
1998 84.00 94.50 225.50 431.50 937.00 1139.50 1312.00 1133.00 1055.00 578.50 198.50 55.50 7244.50
1999 65.50 128.00 149.00 382.76 a 611.96 d 990.50 1213.65 a 1242.00 841.50 580.00 420.00 77.50 6702.37
2000 134.00 222.68 a 345.00 535.50 945.00 946.15 d 1215.50 1236.00 988.50 646.50 123.46 d 33.50 7371.79
2001 14.00 126.50 222.00 620.36 b 830.50 1119.23 d 1336.32 c 1192.39 c 881.00 623.50 384.00 123.00 7472.80
2002 98.50 86.00 218.50 577.50 812.50 1100.00 1159.00 1180.00 899.50 499.50 195.00 84.50 6910.50
2003 89.50 100.00 303.50 577.50 850.00 932.50 1221.00 1247.50 839.00 699.50 279.50 131.00 7270.50
2004 102.00 87.00 404.50 496.50 913.00 982.50 1098.00 1041.50 872.00 607.00 174.50 99.00 6877.50
2005 141.00 109.00 212.50 276.50 j 760.50 1031.00 1132.00 1098.50 1010.50 610.50 305.00 117.00 6527.50
2006 154.00 118.50 335.50 663.50 916.50 1107.50 1261.00 1163.50 777.00 575.50 283.50 80.00 7436.00
2007 31.00 120.50 414.50 372.50 735.00 951.50 1074.50 1164.50 929.50 667.50 307.80 e 94.00 6862.80
2008 81.50 114.50 296.00 473.00 804.50 1131.50 1136.50 1097.00 797.50 575.00 292.50 119.50 6919.00
2009 93.50 192.00 374.50 478.50 775.00 1045.00 1175.86 b 912.00 f 802.50 464.00 327.00 33.50 5761.36
2010 54.00 20.50 243.50 528.00 784.50 1176.00 1121.00 1199.50 994.50 657.00 257.00 127.00 7162.50
2011 47.50 165.50 357.00 640.00 848.50 1298.00 1396.55 a 1409.00 918.00 617.50 251.50 41.00 7990.05
2012 111.50 111.50 506.50 720.50 967.50 1136.50 1285.00 1223.00 914.00 447.00 h 0.00 z 0.00 z 6976.00
Period of Record Statistics
MEAN 74.15 120.51 284.36 513.63 797.36 1028.85 1180.80 1128.96 870.70 582.18 246.59 89.12 6880.38
S.D. 36.94 58.06 87.35 95.90 90.56 87.40 77.30 78.35 78.39 71.30 70.66 34.40 356.47
SKEW 0.04 0.91 0.13 0.00 0.42 0.78 0.47 0.77 -0.06 -0.48 0.03 0.06 0.56
MAX 154.00 267.50 506.50 720.50 1021.50 1298.00 1396.55 1409.00 1055.00 775.00 420.00 154.50 7990.05
MIN 4.50 20.00 87.50 313.50 611.96 884.00 1013.50 970.00 635.00 364.00 101.00 33.50 6263.00
NO YRS 50 49 50 48 49 50 50 49 48 50 49 50 44