BRITTON, SOUTH DAKOTA

Monthly Total Growing Degree Days

(391049)

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
1893 0.00 0.00 0.00 a 54.11 b 389.71 c 267.50 s 0.00 z 597.00 i 566.50 0.00 z 0.00 z 0.00 b 1010.32
1894 0.00 0.00 0.00 z 197.00 i 533.41 b 907.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1440.91
1895 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1896 0.00 z 13.46 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 0.00 z 13.46
1897 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1898 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1899 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1900 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1901 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1902 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1903 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1904 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1905 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1906 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1907 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1908 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1909 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1910 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1911 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1912 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1913 1.00 u 0.00 a 11.33 e 286.11 c 422.12 a 883.50 879.88 a 1019.12 c 619.00 161.50 31.00 0.00 4313.56
1914 0.00 0.00 15.50 205.00 557.50 762.00 785.00 g 819.00 630.50 423.50 66.00 7.00 3486.00
1915 0.00 0.00 0.00 382.50 b 350.00 606.50 762.50 769.50 560.17 a 313.50 38.00 0.00 3782.67
1916 0.00 0.00 22.00 135.50 324.00 k 587.00 1123.00 854.00 523.93 b 149.00 42.00 4.00 3440.43
1917 0.00 0.00 8.50 66.50 413.00 678.10 a 1034.50 832.00 567.50 110.50 118.00 0.00 3828.60
1918 0.00 0.00 114.50 154.00 513.50 774.50 896.00 950.50 434.00 361.50 33.50 0.50 4232.50
1919 0.00 0.00 4.00 190.00 537.00 885.00 a 1046.50 940.50 651.43 b 168.90 b 0.00 0.00 4423.33
1920 0.00 0.00 44.50 44.00 516.00 751.50 903.00 933.50 681.50 418.50 2.00 0.00 4294.50
1921 0.00 12.50 37.50 232.00 544.00 967.50 1062.50 955.00 610.50 274.00 7.00 3.50 4706.00
1922 0.00 0.00 2.50 167.00 589.50 820.50 888.50 1037.00 715.00 316.00 29.50 0.00 4565.50
1923 0.00 0.00 0.50 180.00 543.50 861.00 1054.00 857.00 693.00 280.00 41.00 0.00 4510.00
1924 0.00 1.00 0.00 181.50 251.00 663.00 933.50 879.00 536.00 478.50 78.50 0.00 4002.00
1925 0.00 0.00 87.00 375.50 489.00 707.50 915.50 1067.50 723.50 46.00 3.00 0.00 4414.50
1926 0.00 0.00 42.50 226.00 713.00 a 744.50 1062.00 894.50 504.50 243.00 8.28 a 0.00 4438.28
1927 0.00 0.00 12.00 194.00 348.50 703.45 a 820.98 a 819.00 617.00 314.50 3.50 0.00 3832.93
1928 0.00 0.00 58.00 111.50 635.00 614.00 949.63 a 877.50 481.50 271.50 20.00 0.00 4018.63
1929 0.00 0.00 31.50 160.00 395.00 742.50 1003.50 944.50 480.50 274.00 3.50 0.00 4035.00
1930 0.00 22.00 9.00 238.50 421.50 747.50 1040.50 1010.08 a 577.00 264.53 a 36.50 0.00 4367.12
1931 0.52 a 0.50 9.50 293.50 444.33 a 924.00 1086.50 955.00 842.50 360.00 67.50 0.00 4983.85
1932 0.00 14.00 0.00 212.07 a 561.50 874.66 a 1055.00 958.00 595.50 146.22 a 25.50 0.00 4442.44
1933 0.00 2.00 41.50 182.50 539.40 a 1087.50 1099.50 925.50 765.00 a 219.00 18.00 0.50 4880.40
1934 0.00 0.00 22.50 193.50 887.00 882.00 1097.00 956.00 500.50 417.50 47.00 0.00 5003.00
1935 0.00 2.50 31.00 a 125.00 395.50 693.00 1170.00 959.97 a 690.00 276.00 0.00 0.00 4342.97
1936 0.00 0.00 4.50 138.00 733.50 901.50 1373.50 1104.50 733.00 254.20 a 0.50 0.00 5243.20
1937 0.00 0.00 0.00 138.50 614.00 756.00 1085.00 1164.00 677.50 270.50 70.00 0.00 4775.50
1938 0.00 0.00 70.50 269.00 452.50 833.00 1061.00 1147.00 736.50 479.50 32.59 a 0.00 5081.59
1939 0.00 0.00 98.50 211.00 747.00 802.50 1087.00 1021.00 701.50 261.00 32.00 28.50 4990.00
1940 0.00 0.00 0.00 225.50 519.50 799.00 1149.50 891.00 748.00 448.00 23.79 a 0.00 4804.29
1941 0.00 0.00 12.00 309.00 713.50 799.50 1061.50 1010.00 662.50 280.50 26.90 a 25.50 4900.90
1942 0.00 0.00 25.00 388.00 419.50 727.50 938.50 919.50 506.50 386.00 40.50 0.00 4351.00
1943 0.00 0.00 31.00 275.50 439.50 754.00 1062.50 980.00 570.00 379.00 3.50 0.00 4495.00
1944 0.50 0.00 0.00 115.00 681.50 786.50 942.50 933.00 587.00 331.00 52.00 0.00 4429.00
1945 0.00 0.00 174.50 123.50 303.50 g 0.00 z 938.00 946.00 575.00 294.00 0.00 z 0.00 3051.00
1946 0.00 0.00 105.50 336.00 442.50 802.00 1003.50 862.32 a 608.50 199.00 19.14 a 0.00 4378.45
1947 2.50 0.00 14.50 111.50 380.50 697.00 957.50 1143.00 648.50 498.07 a 24.00 0.00 4477.07
1948 0.00 0.00 18.60 a 297.00 565.00 770.00 1013.00 978.50 805.50 275.50 44.50 2.00 4769.60
1949 0.00 0.00 0.00 259.00 603.98 a 785.50 1043.00 1102.57 a 538.00 155.50 o 67.00 0.00 g 4399.05
1950 0.00 a 0.00 5.68 a 78.00 e 422.93 c 825.50 852.00 569.00 g 631.00 97.50 p 21.11 c 0.00 i 2836.22
1951 0.00 a 0.00 z 0.00 z 0.00 z 523.42 e 584.50 864.50 816.85 a 450.00 b 238.50 8.50 0.00 b 3486.27
1952 0.00 0.00 0.00 a 300.50 527.50 873.50 974.50 951.70 a 730.50 218.50 35.50 0.00 i 4612.20
1953 0.00 a 0.00 20.50 87.78 c 459.32 a 761.00 914.00 989.93 a 616.00 478.50 81.50 0.00 4408.53
1954 0.00 3.00 7.00 237.86 b 363.22 a 751.00 1023.50 913.47 a 559.14 a 222.00 69.64 b 0.00 4149.82
1955 0.00 a 0.00 24.50 372.86 b 701.63 a 735.52 a 1068.50 1016.00 611.00 313.50 12.00 0.00 4855.51
1956 0.00 0.00 a 9.00 33.00 492.26 b 971.25 b 885.50 881.00 549.50 434.57 d 28.97 a 0.00 a 4285.05
1957 0.00 a 0.00 13.00 238.00 429.19 b 699.50 1078.50 913.00 502.50 274.00 6.50 0.00 4154.19
1958 0.00 c 26.00 15.00 179.00 554.12 c 587.07 a 846.30 a 979.00 659.50 291.50 30.50 0.00 c 4167.99
1959 0.00 0.00 a 25.83 a 187.50 457.77 a 896.00 1009.00 1080.35 a 585.00 a 122.00 1.00 0.00 4364.45
1960 0.00 0.00 0.00 159.50 507.00 696.21 a 1019.00 953.50 622.50 283.00 30.00 0.00 a 4270.71
1961 0.00 2.00 43.50 100.86 a 406.00 839.00 860.50 1027.00 525.00 307.50 29.00 0.00 4140.36
1962 0.00 a 0.00 7.00 197.50 529.50 745.00 846.50 924.00 484.50 333.00 29.00 10.50 4106.50
1963 0.00 0.00 118.50 219.00 481.00 879.50 979.00 908.00 662.00 521.50 41.00 0.00 4809.50
1964 0.00 0.00 6.50 203.50 g 586.50 772.50 1023.50 834.00 534.50 279.00 77.00 0.00 4113.50
1965 0.00 0.00 0.00 153.00 525.00 740.50 924.50 880.00 281.50 321.50 42.00 0.00 3868.00
1966 0.00 0.00 65.50 67.50 443.50 753.50 1083.00 802.50 533.50 213.50 6.00 0.00 3968.50
1967 0.00 0.00 b 77.50 173.50 403.50 704.50 900.00 891.50 647.50 255.50 27.50 0.00 4081.00
1968 0.00 0.00 148.00 203.00 423.00 777.50 948.50 924.50 604.00 292.50 16.50 0.00 4337.50
1969 0.00 0.00 0.00 272.50 593.50 597.50 938.00 1073.50 704.50 152.50 36.50 0.00 4368.50
1970 0.00 0.00 0.00 183.00 548.50 883.50 1055.50 1015.50 687.50 306.50 0.00 0.00 4680.00
1971 0.00 0.00 39.00 287.50 483.50 890.00 833.50 990.50 596.00 335.50 10.50 0.00 4466.00
1972 0.00 0.00 7.50 136.50 614.50 793.50 908.50 985.00 602.00 222.00 0.00 z 0.00 4269.50
1973 0.00 0.00 0.00 z 190.50 517.50 819.50 982.50 1119.00 556.00 400.00 7.00 0.00 4592.00
1974 0.00 0.00 18.00 215.00 462.50 794.00 1171.50 863.00 533.50 330.50 19.00 0.00 4407.00
1975 0.00 0.00 12.00 69.50 568.50 791.00 1118.00 953.25 a 541.50 363.00 107.50 0.00 4524.25
1976 0.00 1.50 48.50 270.60 e 545.00 915.50 1086.50 1128.50 697.50 218.50 29.50 0.00 4941.60
1977 0.00 0.00 61.50 401.00 849.50 850.50 1072.00 802.00 606.00 262.50 59.00 0.00 4964.00
1978 0.00 0.00 35.00 148.00 599.00 788.00 978.00 1006.47 a 799.50 279.50 72.50 0.00 4705.97
1979 0.00 0.00 0.00 124.50 405.00 803.00 965.13 a 0.00 z 744.50 228.50 8.50 2.50 3281.63
1980 0.00 a 0.00 0.00 351.72 a 682.50 844.00 1077.50 934.50 625.50 218.00 53.00 0.00 4786.72
1981 8.00 25.50 68.00 317.50 529.00 736.50 1053.00 994.50 680.00 269.50 111.00 0.00 4792.50
1982 0.00 0.50 9.00 217.00 604.00 671.00 1100.50 1030.50 623.50 262.50 6.00 6.50 4531.00
1983 0.00 2.00 19.00 112.00 448.00 808.00 1171.00 1196.50 700.50 268.50 57.00 0.00 4782.50
1984 0.00 0.00 6.50 169.00 488.00 814.00 1019.00 1089.00 491.50 336.50 40.00 0.00 4453.50
1985 0.00 5.50 56.00 350.00 684.00 697.50 1038.50 849.00 529.50 235.00 19.00 0.00 4464.00
1986 0.00 0.00 83.00 207.00 578.50 905.50 1025.50 849.00 505.00 279.00 5.50 0.00 4438.00
1987 1.50 1.00 47.00 418.50 740.00 904.00 1117.50 879.00 667.50 179.50 63.50 0.00 5019.00
1988 0.00 0.00 37.00 245.50 766.00 1112.00 1146.50 1046.50 617.00 207.50 9.00 0.00 5187.00
1989 0.00 0.00 9.50 208.50 572.00 778.00 1120.00 978.00 626.50 326.00 9.50 0.00 4628.00
1990 0.00 0.00 54.00 240.00 493.50 807.00 938.50 953.50 730.50 229.00 66.00 1.00 4513.00
1991 0.00 2.50 33.00 290.00 658.50 911.00 973.00 1013.00 601.50 271.50 3.00 0.00 4757.00
1992 0.00 2.50 31.50 193.50 652.00 717.00 747.50 778.00 581.00 276.00 0.00 0.00 3979.00
1993 0.00 0.00 32.50 125.50 508.50 651.50 836.00 874.50 470.00 236.00 0.50 0.00 3735.00
1994 0.00 0.00 12.50 196.00 655.50 831.50 865.50 849.00 679.00 327.50 41.00 0.00 4457.50
1995 0.00 0.00 44.50 43.00 436.00 860.00 944.00 1034.00 580.00 208.50 3.50 0.00 4153.50
1996 0.00 0.00 4.50 112.50 426.00 857.00 860.50 957.50 577.00 276.00 3.50 0.00 4074.50
1997 0.00 0.00 11.00 147.50 438.50 867.50 968.00 906.50 694.50 382.85 a 1.00 0.00 4417.35
1998 0.00 2.50 12.50 270.00 680.00 690.00 1028.50 972.50 785.00 288.00 12.00 10.00 4751.00
1999 0.00 12.00 62.50 228.00 550.00 790.50 1045.00 927.00 513.00 230.50 100.00 7.00 4465.50
2000 0.00 22.50 120.50 194.00 620.50 817.50 1037.00 1009.00 678.50 398.00 44.50 0.00 4942.00
2001 0.00 a 0.00 0.00 216.00 661.50 845.50 1103.00 1071.00 698.00 298.00 178.50 0.00 5071.50
2002 0.00 6.00 2.50 205.50 432.00 975.50 1146.50 939.00 762.00 109.00 17.50 0.00 4595.50
2003 0.00 0.00 76.00 305.50 525.50 804.50 1045.00 1090.00 637.50 407.00 11.00 0.00 4902.00
2004 0.00 1.00 72.50 277.00 507.00 733.50 962.50 812.00 754.00 343.00 56.50 0.00 4519.00
2005 0.00 a 1.50 52.00 353.00 501.00 915.50 1072.00 950.00 801.00 349.50 71.00 0.00 5066.50
2006 0.00 0.00 a 26.00 368.50 632.00 897.50 1197.50 1024.00 566.00 242.50 71.50 0.00 5025.50
2007 0.00 0.00 a 78.53 a 263.00 731.00 928.00 1099.50 931.50 723.00 380.00 40.00 0.00 5174.53
2008 0.00 a 0.00 4.00 144.00 517.00 763.00 1050.00 1010.50 664.00 255.00 83.50 0.00 a 4491.00
2009 0.00 a 0.00 25.00 212.50 546.00 757.50 881.00 877.00 757.00 99.00 81.00 0.00 4236.00
2010 0.00 0.00 61.00 404.00 548.50 843.00 1056.50 1063.50 571.00 393.50 80.50 0.00 5021.50
2011 0.00 0.00 0.00 167.50 494.50 830.00 1140.00 1009.50 642.00 411.00 40.50 0.50 4735.50
2012 1.00 0.00 j 276.50 300.00 668.50 926.00 1174.00 952.00 641.50 209.00 25.50 2.00 5176.00
2013 0.00 0.00 0.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 0.14 1.82 34.31 211.38 537.01 798.92 1008.59 958.06 620.75 289.24 35.76 1.14 4517.14
S.D. 0.84 5.24 43.30 90.30 114.48 99.36 106.07 91.80 95.71 92.26 32.16 4.22 363.20
SKEW 8.33 3.44 2.57 0.28 0.51 0.22 0.04 0.25 -0.23 0.15 1.39 5.08 -0.06
MAX 8.00 26.00 276.50 418.50 887.00 1112.00 1373.50 1196.50 842.50 521.50 178.50 28.50 5243.20
MIN 0.00 0.00 0.00 33.00 251.00 584.50 747.50 769.50 281.50 46.00 0.00 0.00 3735.00
NO YRS 103 102 99 99 100 100 99 98 101 98 98 98 87