IPSWICH, SOUTH DAKOTA

Monthly Total Growing Degree Days

(394206)

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
1894 0.00 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
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 0.00 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
1897 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 346.50 q 831.00 290.00 18.00 0.00 1139.00
1898 0.00 f 0.00 9.50 200.00 433.50 774.50 964.50 879.50 528.50 123.50 17.59 a 0.00 z 3931.09
1899 0.00 w 5.19 a 0.00 202.50 435.00 755.00 984.50 301.50 t 500.50 165.33 a 25.50 1.50 3075.02
1900 9.00 0.00 9.50 321.00 670.50 832.50 1009.00 1097.50 539.50 315.50 15.50 2.14 b 4821.64
1901 0.00 0.00 16.50 262.50 631.50 797.50 1171.00 1010.50 548.00 284.50 11.79 b 0.00 4733.79
1902 0.00 0.00 26.50 167.50 634.50 656.67 c 964.50 846.50 423.50 209.50 21.50 0.00 3950.67
1903 0.00 0.00 16.02 a 161.50 507.50 409.00 n 896.50 815.50 446.00 259.00 41.50 0.00 3143.52
1904 0.00 0.00 e 0.00 103.50 477.00 304.00 o 814.00 809.00 509.00 295.00 77.50 0.50 3085.50
1905 0.00 3.00 81.50 137.50 338.00 671.00 845.50 940.00 635.00 179.50 49.00 0.00 3880.00
1906 0.00 0.00 3.50 265.00 471.00 719.44 c 878.00 865.50 692.50 232.50 13.50 0.00 h 4140.94
1907 0.00 0.00 49.00 37.00 244.50 751.50 910.50 914.50 b 124.50 q 233.00 16.55 a 0.00 3156.55
1908 0.00 f 0.00 n 9.30 a 262.24 a 413.69 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 685.23
1909 0.00 m 0.00 a 1.00 51.00 457.77 a 762.00 886.50 997.17 a 623.50 225.00 77.50 0.00 4081.43
1910 0.00 a 0.00 189.00 296.90 a 343.50 789.00 1021.50 270.50 u 381.50 h 416.00 0.00 z 0.00 3055.90
1911 0.00 a 0.00 63.19 e 231.50 585.00 463.00 n 907.50 804.97 a 545.00 189.00 0.00 e 0.00 b 3326.16
1912 0.00 0.00 i 10.50 262.00 474.00 715.00 935.68 a 882.50 424.50 266.50 25.00 0.00 a 3995.68
1913 0.00 6.00 22.73 a 269.00 438.81 b 879.50 874.72 a 1033.16 b 634.50 0.00 z 57.78 c 0.00 4216.19
1914 0.00 a 0.00 15.50 245.50 510.00 759.00 1063.00 839.58 a 663.00 369.00 76.11 c 0.00 4540.69
1915 0.00 0.00 0.00 384.83 a 355.50 578.00 761.00 772.42 a 514.29 b 291.83 b 44.00 0.00 3701.86
1916 0.00 0.00 27.50 154.00 446.40 a 605.00 1113.50 875.00 0.00 z 147.50 44.50 0.00 3413.40
1917 0.00 0.00 10.00 64.00 360.00 644.00 996.00 834.50 553.00 150.00 85.00 0.00 3696.50
1918 0.00 3.00 78.50 137.50 514.00 771.43 b 910.50 914.00 412.50 336.00 29.50 2.30 d 4109.23
1919 0.00 0.00 5.50 163.50 471.00 804.50 992.53 b 902.62 a 626.25 b 106.29 c 0.50 0.00 4072.69
1920 0.00 0.00 23.50 31.03 a 486.00 705.50 919.50 0.00 z 0.00 z 257.00 f 6.50 0.00 2172.03
1921 0.00 10.00 53.50 250.50 485.00 957.00 998.50 924.50 580.50 293.50 14.50 5.00 4572.50
1922 0.00 0.00 2.50 167.50 556.45 a 784.00 887.50 1037.50 688.50 303.00 26.00 0.00 4452.95
1923 0.00 0.00 6.50 177.00 517.50 780.00 1014.00 819.50 671.50 274.00 73.50 0.00 a 4333.50
1924 0.00 8.00 0.00 166.00 308.00 629.50 853.00 846.50 528.50 399.38 a 16.00 6.00 3760.88
1925 0.00 0.00 b 89.00 336.00 457.00 705.50 931.00 1000.02 b 722.00 59.00 32.00 1.07 b 4332.59
1926 0.00 3.50 57.50 286.00 703.50 746.50 1028.50 891.00 511.55 a 283.50 17.50 0.00 4529.05
1927 0.00 0.00 19.00 174.00 337.50 695.50 856.00 819.00 604.50 313.50 4.00 0.00 d 3823.00
1928 0.00 z 0.00 w 76.50 95.50 636.02 a 637.00 966.68 a 885.00 509.00 261.00 25.50 0.00 4092.20
1929 0.00 c 0.00 a 31.00 179.50 397.83 a 745.50 1094.82 a 1005.50 470.00 294.00 0.00 0.00 a 4218.15
1930 0.00 5.70 a 5.00 33.00 y 0.00 z 0.00 z 0.00 z 0.00 z 414.00 g 263.00 70.00 0.00 z 343.70
1931 7.00 2.50 17.00 281.50 488.00 975.00 1118.00 987.00 838.50 389.00 74.50 0.00 a 5178.00
1932 0.00 d 22.02 b 9.96 c 270.00 603.00 865.86 a 1036.00 502.50 n 616.55 a 202.53 a 34.00 4.65 a 3664.58
1933 0.00 a 5.50 34.62 a 222.93 a 0.00 z 395.50 u 1148.00 975.00 783.50 244.00 30.00 0.00 3443.55
1934 3.21 b 12.83 d 48.00 252.00 901.00 927.00 1111.87 a 996.00 500.00 403.50 60.00 0.00 5215.41
1935 0.00 1.50 51.00 141.50 363.00 737.59 a 1177.00 960.50 638.50 209.00 0.00 0.00 4279.59
1936 0.00 0.00 14.50 150.50 695.29 c 906.11 c 1087.50 f 1093.00 710.50 245.00 10.00 0.00 3824.90
1937 0.00 a 0.00 18.00 133.00 599.50 805.00 c 1108.50 1155.00 674.00 280.00 57.00 0.00 4830.00
1938 0.00 b 0.52 a 75.50 293.50 463.00 848.28 a 1082.50 1110.50 729.50 458.50 20.17 a 0.00 5081.97
1939 0.00 0.00 116.50 218.50 756.50 764.50 1118.00 1007.00 783.50 265.00 42.50 62.50 5134.50
1940 0.00 0.00 0.00 146.50 516.50 840.50 1127.50 938.02 b 768.00 479.00 17.50 0.00 4833.52
1941 0.00 0.00 16.00 259.50 723.50 826.00 636.50 m 1040.05 a 673.50 292.50 47.22 c 12.92 a 3891.19
1942 0.00 a 0.00 35.43 c 417.50 439.00 769.00 987.50 1015.00 573.50 410.50 47.00 0.00 4694.43
1943 0.00 0.50 76.50 353.50 495.00 809.50 1122.50 1034.00 623.50 354.00 0.00 a 0.00 4869.00
1944 5.00 0.00 0.00 z 119.50 729.00 824.48 a 980.00 930.50 653.08 d 0.00 z 0.00 z 0.00 d 4241.56
1945 0.00 0.00 196.50 159.50 415.63 d 472.50 j 0.00 z 990.00 0.00 z 0.00 z 0.00 x 0.00 1761.63
1946 0.00 b 0.00 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 0.00 z 0.00 z 0.00
1962 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 748.00 880.50 958.00 531.50 366.00 37.00 7.00 3528.00
1963 1.00 0.00 127.00 213.00 478.50 885.50 1002.50 946.50 675.50 528.50 36.50 0.00 4894.50
1964 0.00 0.00 3.50 247.00 585.00 792.50 1039.00 842.00 525.50 258.00 52.00 0.00 4344.50
1965 0.00 1.50 0.00 165.00 531.50 760.50 1000.00 937.50 283.50 350.50 48.50 1.00 4079.50
1966 0.00 0.00 75.43 a 73.50 468.00 804.50 1117.00 828.00 563.00 257.00 3.00 0.00 4189.43
1967 0.00 0.00 72.00 155.50 429.00 716.00 899.50 917.00 640.50 249.50 31.50 0.00 4110.50
1968 0.00 0.00 115.00 200.50 375.00 778.00 932.00 902.50 600.00 256.00 22.00 0.00 4181.00
1969 0.00 0.00 a 0.00 262.00 602.00 619.00 950.50 1056.50 691.50 168.00 20.50 6.00 4376.00
1970 0.00 0.00 0.00 154.00 562.50 903.50 1063.00 1051.00 695.50 271.00 4.62 d 0.00 q 4705.12
1971 0.00 0.00 22.14 c 275.50 435.00 881.00 868.00 1004.00 604.50 297.50 19.50 0.00 4407.14
1972 0.00 0.00 8.50 134.50 602.50 779.50 910.00 1006.50 624.00 246.00 0.00 0.00 4311.50
1973 0.00 1.00 32.50 194.00 534.00 831.50 1033.50 1117.50 559.00 371.00 8.50 0.00 4682.50
1974 0.00 0.00 32.00 221.50 469.50 784.00 1153.50 870.00 550.50 323.00 19.00 0.00 4423.00
1975 0.00 0.00 22.45 b 100.50 569.00 802.50 1118.50 943.50 538.00 302.00 111.50 0.00 a 4507.95
1976 0.00 11.00 27.50 167.00 h 485.00 838.00 1028.50 1059.00 626.00 200.50 15.50 0.00 a 4291.00
1977 0.00 1.00 23.25 c 368.00 719.50 823.50 986.00 784.00 597.50 193.00 30.50 0.00 4526.25
1978 0.00 0.00 26.00 129.50 536.50 773.00 944.50 913.00 733.50 222.00 71.00 0.00 a 4349.00
1979 0.00 0.00 0.50 132.00 375.50 737.14 b 919.00 830.00 710.50 224.50 13.50 3.21 b 3945.85
1980 0.00 b 0.00 0.00 309.00 610.00 842.50 1014.00 900.00 620.00 229.50 61.55 a 0.57 d 4587.13
1981 5.00 27.48 a 49.50 318.62 a 501.00 768.00 1045.50 981.00 657.00 246.50 69.50 0.00 a 4669.10
1982 0.00 1.50 3.00 178.50 498.00 606.50 1027.50 944.50 530.00 157.00 0.00 1.03 a 3947.53
1983 0.00 0.50 3.00 79.44 c 412.00 737.50 1047.50 1087.50 569.50 162.75 a 16.50 0.00 4116.19
1984 0.00 0.00 z 0.00 z 135.50 405.50 776.50 989.50 1039.00 426.00 237.00 5.00 0.00 4014.00
1985 0.00 0.00 18.00 286.50 571.95 a 572.00 1036.50 825.50 456.00 184.00 9.00 0.00 3959.45
1986 0.00 0.00 101.27 a 162.00 516.50 798.50 958.00 829.50 490.00 270.00 7.50 b 0.00 4133.27
1987 9.00 4.00 30.00 402.50 710.00 929.00 1083.00 861.50 618.50 189.50 54.00 0.00 4891.00
1988 0.00 5.50 34.00 210.50 709.50 1057.00 1119.50 1008.50 572.00 213.00 12.00 3.00 4944.50
1989 0.00 0.00 24.00 209.00 537.50 729.00 1080.00 943.00 579.00 287.50 17.50 0.00 4406.50
1990 0.00 0.00 39.00 207.50 462.50 798.00 899.50 935.50 701.50 183.00 43.00 1.50 4271.00
1991 0.00 1.00 28.50 240.00 608.50 876.50 940.50 962.00 597.50 284.50 5.50 0.00 4544.50
1992 0.00 5.50 32.00 181.50 585.50 686.50 721.00 747.00 538.50 265.00 0.00 0.00 3762.50
1993 0.00 0.00 42.50 117.00 485.50 653.50 807.00 847.50 441.00 229.50 5.00 0.00 3628.50
1994 0.00 a 0.00 28.50 192.50 631.50 805.50 862.00 785.50 623.50 293.00 15.00 0.00 4237.00
1995 0.00 0.00 39.50 42.50 428.00 787.00 958.00 989.50 557.00 215.50 6.50 0.00 4023.50
1996 0.00 1.50 9.00 90.50 394.50 773.50 850.50 900.50 527.50 194.00 5.00 0.00 b 3746.50
1997 0.00 0.00 4.00 127.00 414.50 799.00 942.50 883.00 651.50 329.63 a 0.00 0.00 4151.13
1998 0.00 b 4.00 17.50 240.00 601.00 659.50 982.00 957.50 704.00 220.00 20.00 6.00 4411.50
1999 0.00 6.50 41.50 191.50 516.50 741.00 980.00 919.50 458.00 206.50 83.50 6.50 4151.00
2000 0.00 13.50 82.50 167.00 549.00 734.00 949.00 900.50 0.00 z 303.50 20.00 0.00 3719.00
2001 0.00 0.00 0.00 201.50 577.00 773.00 1016.50 963.00 607.00 0.00 z 153.00 0.00 4291.00
2002 1.50 0.00 0.50 163.50 360.50 895.50 1074.50 870.50 628.00 58.00 19.00 0.00 4071.50
2003 3.00 0.00 53.50 240.50 460.00 727.00 968.00 996.00 563.50 374.00 10.50 0.00 4396.00
2004 0.00 4.50 57.50 209.00 433.50 646.00 867.00 733.00 640.00 241.00 29.00 0.00 3860.50
2005 0.00 5.50 35.50 277.50 446.50 835.00 997.00 881.00 717.00 261.50 49.50 0.00 4506.00
2006 0.00 0.00 28.50 296.00 552.00 842.00 1134.50 977.50 496.50 187.50 66.00 0.00 4580.50
2007 0.00 0.00 92.00 233.50 626.50 842.00 1048.00 868.50 628.00 274.00 31.00 0.00 a 4643.50
2008 0.00 0.00 6.50 114.50 408.00 712.50 983.50 916.00 575.00 206.50 45.50 0.00 3968.00
2009 0.00 0.00 19.50 157.50 477.50 681.50 829.50 796.50 661.50 58.50 48.00 0.00 3730.00
2010 0.00 0.00 46.00 289.00 474.00 795.50 985.50 1039.00 531.00 313.00 50.00 0.00 4523.00
2011 0.00 0.00 0.00 133.00 424.50 757.00 1091.00 927.00 551.00 327.50 17.50 0.00 4228.50
2012 8.50 0.00 245.50 271.50 549.00 858.50 1099.00 862.00 588.10 a 148.50 1.50 1.50 4633.60
2013 0.00 0.00 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
Period of Record Statistics
MEAN 0.55 1.95 36.27 201.71 510.22 775.04 987.23 930.53 595.18 260.59 31.19 1.43 4347.85
S.D. 1.87 4.46 43.51 82.35 112.61 88.48 97.71 90.65 98.13 86.03 27.81 6.66 389.26
SKEW 3.58 3.50 2.35 0.26 0.59 0.14 -0.18 0.14 -0.08 0.30 1.40 8.33 0.19
MAX 9.00 27.48 245.50 417.50 901.00 1057.00 1177.00 1155.00 838.50 528.50 153.00 62.50 5215.41
MIN 0.00 0.00 0.00 31.03 244.50 572.00 721.00 733.00 283.50 58.00 0.00 0.00 3628.50
NO YRS 95 95 97 96 96 92 94 93 92 94 96 95 71