HURON RGNL AP, SOUTH DAKOTA

Monthly Total Growing Degree Days

(394127)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1948 0.00 z 0.00 z 0.00 z 0.00 z 554.38 a 756.50 1056.00 1001.00 790.50 288.50 45.50 0.50 4492.88
1949 0.00 0.00 6.20 a 283.00 668.00 886.00 1131.00 1079.50 552.50 315.00 93.00 0.00 5014.20
1950 0.00 0.00 10.50 88.50 443.00 828.00 890.50 877.50 627.00 368.00 19.50 0.00 4152.50
1951 0.00 3.00 3.50 139.50 561.00 642.50 964.50 901.50 493.00 258.50 11.00 2.50 3980.50
1952 0.00 0.00 0.50 315.00 551.00 936.50 1060.50 962.00 768.00 215.00 39.00 0.00 4847.50
1953 0.00 0.00 49.50 104.00 503.50 886.50 1001.82 a 1048.00 672.00 494.50 84.00 0.00 4843.82
1954 0.00 20.50 4.50 260.00 415.40 a 829.00 1132.50 1015.00 664.00 238.00 114.00 0.00 a 4692.90
1955 0.00 0.00 36.00 440.50 724.50 795.00 a 1227.50 1161.00 678.00 350.00 10.00 0.00 5422.50
1956 0.00 0.00 21.50 73.50 576.50 1070.50 989.00 959.00 596.00 430.00 37.00 2.00 4755.00
1957 0.00 0.00 11.00 248.50 480.50 765.50 1155.50 990.45 a 577.50 308.50 13.00 8.50 4558.95
1958 0.00 23.50 13.00 195.50 645.50 705.00 917.00 1072.00 707.50 366.00 67.50 0.00 4712.50
1959 0.00 0.00 50.50 247.00 560.50 994.66 a 1065.50 1128.50 632.00 158.00 8.00 2.50 4847.16
1960 0.00 0.00 0.00 215.50 530.50 749.50 1090.50 1026.50 633.50 298.50 23.00 0.00 4567.50
1961 0.00 0.00 47.50 97.00 443.00 853.00 998.50 1093.50 544.00 326.50 28.00 0.00 4431.00
1962 2.50 3.50 0.00 220.50 606.00 790.50 927.00 948.00 530.50 358.00 51.00 19.00 4456.50
1963 3.00 4.50 150.50 250.50 535.00 927.00 1116.00 1001.50 774.50 602.50 53.50 0.00 5418.50
1964 0.50 0.00 8.00 315.50 632.00 874.50 1196.00 909.00 635.00 322.50 59.50 0.00 4952.50
1965 0.00 0.00 0.00 193.50 556.00 763.00 1021.00 960.50 322.50 335.00 39.50 2.00 4193.00
1966 0.00 0.00 92.00 119.00 486.00 859.50 1187.00 832.50 565.00 248.00 10.00 0.00 4399.00
1967 0.00 1.00 118.00 220.50 433.50 787.00 947.00 939.00 679.50 288.50 29.00 0.00 4443.00
1968 0.00 0.00 147.00 199.00 378.50 829.00 973.00 934.50 591.50 269.50 30.00 0.00 4352.00
1969 0.00 0.00 0.00 285.00 525.50 612.50 981.00 982.00 680.50 142.00 43.50 2.00 4254.00
1970 0.00 0.00 0.00 167.00 560.00 846.00 1078.00 1042.50 697.00 276.00 12.50 0.00 4679.00
1971 0.00 0.00 26.50 222.50 441.50 940.50 911.00 1051.50 600.00 327.00 20.00 0.00 4540.50
1972 0.00 0.00 26.50 170.00 618.00 782.00 920.00 948.00 615.00 203.50 9.50 2.00 4294.50
1973 0.00 1.50 49.50 200.50 500.50 810.00 996.00 1099.00 538.50 394.00 22.50 0.00 4612.00
1974 0.00 4.50 43.00 255.50 437.50 779.50 1213.50 899.00 558.50 361.00 29.00 0.00 4581.00
1975 0.00 0.00 15.00 112.00 588.00 811.00 1196.00 1040.00 538.00 347.00 98.50 0.00 4745.50
1976 0.00 9.00 72.50 250.00 475.50 874.00 1076.50 1091.00 643.50 194.00 14.50 0.00 4700.50
1977 0.00 4.00 47.00 401.00 785.50 905.50 1136.50 852.50 657.00 265.50 64.50 0.00 5119.00
1978 0.00 0.00 56.00 143.50 540.50 775.00 952.00 967.00 782.00 241.00 70.00 0.00 4527.00
1979 0.00 0.00 8.00 158.50 412.50 867.00 1090.50 922.50 715.50 229.50 21.50 8.00 4433.50
1980 2.00 0.00 22.00 282.00 629.50 854.00 1034.50 949.00 650.00 245.50 66.00 1.00 4735.50
1981 3.50 37.00 60.00 378.00 549.50 882.50 1162.00 998.50 706.50 318.50 108.00 0.00 5204.00
1982 0.00 6.00 40.50 222.00 607.00 707.00 1095.00 1013.50 634.00 283.50 16.50 9.50 4634.50
1983 0.00 17.00 41.00 115.00 443.00 789.00 1130.50 1206.00 691.00 293.50 70.50 0.00 4796.50
1984 0.50 2.50 6.50 213.00 489.00 814.00 1053.00 1069.00 509.50 321.00 46.00 0.00 4524.00
1985 0.00 8.00 65.50 358.00 681.00 695.00 1007.00 832.00 547.50 231.50 15.50 0.00 4441.00
1986 0.00 0.00 105.00 198.50 532.00 872.50 1041.00 836.00 566.50 288.50 16.00 0.00 4456.00
1987 7.00 9.00 71.00 421.00 761.50 932.50 1105.50 888.00 666.00 178.50 81.50 2.50 5124.00
1988 0.00 0.00 58.50 216.00 728.00 1059.00 1138.50 1035.50 637.00 195.00 24.00 0.50 5092.00
1989 1.50 0.00 32.00 268.50 512.00 769.00 1119.50 1030.50 646.50 307.50 16.00 0.00 4703.00
1990 3.50 0.00 65.00 239.50 518.50 858.50 971.50 1014.50 793.00 244.50 64.00 0.50 4773.00
1991 0.00 8.00 64.50 273.50 651.00 1001.50 1038.50 1058.00 648.50 287.00 6.00 0.00 5036.50
1992 0.00 14.50 53.00 202.50 598.50 757.00 777.00 792.50 590.50 272.50 0.00 0.00 4058.00
1993 0.00 0.00 45.50 164.00 530.50 723.50 926.50 937.00 484.00 229.50 17.00 0.00 4057.50
1994 0.00 1.50 49.00 222.00 665.00 857.50 900.50 872.50 707.00 344.50 59.00 0.00 4678.50
1995 0.00 6.50 93.00 88.50 461.50 868.50 1022.50 1057.50 603.50 223.50 0.50 0.00 4425.50
1996 0.50 7.00 9.50 137.00 452.50 858.00 919.00 980.50 623.50 279.50 7.24 a 0.00 4274.24
1997 0.00 0.00 47.00 195.00 452.50 904.50 1028.00 963.00 718.00 387.00 8.00 0.50 4703.50
1998 0.00 17.50 48.50 281.50 685.00 756.00 1078.00 1049.50 821.00 346.00 43.50 25.00 5151.50
1999 0.00 21.00 76.50 247.00 570.50 821.50 1102.00 1003.00 565.00 282.50 111.96 b 7.23 a 4808.20
2000 0.00 36.00 135.00 233.50 622.00 794.00 1051.50 1030.50 699.00 405.50 29.48 a 0.00 5036.48
2001 0.00 0.00 0.00 241.50 622.00 843.00 1134.00 1035.50 686.50 299.50 164.48 a 0.00 5026.48
2002 8.00 7.50 11.00 251.50 431.00 960.00 1226.00 974.50 731.50 109.00 29.50 0.50 4740.00
2003 5.50 0.00 99.50 279.50 495.00 779.50 1071.50 1078.00 627.00 385.00 24.50 0.00 4845.00
2004 0.00 7.50 97.00 268.00 541.00 712.00 964.50 822.50 748.50 313.50 62.00 0.50 4537.00
2005 0.00 4.50 55.00 305.50 518.00 914.00 1125.50 995.00 835.00 334.50 74.00 0.00 5161.00
2006 5.50 0.00 41.00 342.00 572.00 882.00 1187.50 1023.50 521.50 232.00 68.50 0.00 4875.50
2007 0.00 0.00 133.50 262.50 688.50 897.00 1123.50 970.50 695.50 353.00 58.50 0.00 5182.50
2008 0.00 2.00 9.00 167.50 464.00 758.50 1042.00 1000.50 663.00 257.00 72.50 0.00 4436.00
2009 0.00 0.00 69.50 205.50 556.00 742.50 882.00 864.50 721.00 100.00 88.50 0.00 4229.50
2010 0.00 0.00 66.50 377.00 535.00 853.00 1072.00 1098.50 606.50 373.00 66.00 0.00 5047.50
2011 0.00 1.50 16.00 177.00 515.50 821.50 1195.00 984.00 589.00 394.50 37.50 3.00 4734.50
2012 7.00 0.00 345.00 347.00 653.50 965.00 1248.00 952.00 665.00 219.00 25.00 7.00 5433.50
2013 0.00 0.00 12.92 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 12.92
Period of Record Statistics
MEAN 0.78 4.45 50.12 230.81 552.32 834.38 1054.94 986.94 640.88 294.68 43.83 1.64 4695.14
S.D. 1.90 8.14 53.84 83.05 91.34 89.82 100.69 85.17 90.53 84.62 33.39 4.30 341.56
SKEW 2.55 2.44 2.79 0.34 0.44 0.22 -0.23 -0.12 -0.41 0.52 1.08 3.79 0.14
MAX 8.00 37.00 345.00 440.50 785.50 1070.50 1248.00 1206.00 835.00 602.50 164.48 25.00 5433.50
MIN 0.00 0.00 0.00 73.50 378.50 612.50 777.00 792.50 322.50 100.00 0.00 0.00 3980.50
NO YRS 65 65 65 64 65 65 65 65 65 65 65 65 64