WATERTOWN RGNL AP, SOUTH DAKOTA

Monthly Total Growing Degree Days

(398932)

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 1.50 84.00 469.81 b 318.00 r 0.00 z 0.00 z 0.00 z 9.50 z 61.00 0.00 616.31
1894 0.00 0.00 48.50 255.00 a 524.00 956.25 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 o 0.00 1783.75
1895 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
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 8.02 b 159.50 444.00 608.28 a 900.00 701.50 743.00 257.00 12.00 0.00 3833.29
1898 0.00 0.00 11.00 187.00 433.50 736.50 859.50 815.50 590.00 123.00 12.00 0.00 3768.00
1899 0.00 0.00 0.00 183.50 425.50 716.50 861.00 889.50 407.00 194.50 61.00 0.00 3738.50
1900 0.00 0.00 23.00 299.00 583.00 805.00 869.50 1047.00 536.50 429.50 23.00 0.00 b 4615.50
1901 0.00 a 0.00 5.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5.50
1902 0.00 e 2.15 b 0.00 z 132.50 519.77 a 606.21 a 894.50 587.00 h 258.00 n 246.45 a 11.79 b 0.00 a 2413.36
1903 0.00 0.00 11.50 151.55 a 482.50 656.50 819.84 c 755.37 a 450.00 a 239.98 b 53.28 a 0.00 a 3620.52
1904 0.00 0.00 1.11 c 99.83 a 419.00 661.00 754.33 a 751.75 a 522.32 b 286.50 65.00 0.00 3560.84
1905 0.00 c 0.00 68.00 154.00 339.00 660.58 d 803.50 908.00 643.50 193.00 20.89 b 0.00 3790.47
1906 0.00 g 0.52 a 0.00 a 222.41 a 458.50 638.00 773.50 829.50 620.00 204.00 14.00 0.00 3760.43
1907 0.00 a 0.00 56.32 a 30.00 c 203.10 b 515.00 i 818.73 c 819.29 c 426.00 123.00 h 7.00 0.00 2360.44
1908 0.00 0.00 b 1.55 a 228.75 b 446.00 627.22 c 675.00 f 786.76 b 730.50 239.50 47.00 0.00 3107.28
1909 0.00 0.00 4.13 a 52.50 477.00 773.50 922.00 846.00 f 613.50 247.45 c 91.00 0.00 3181.08
1910 0.00 0.00 214.00 342.50 381.00 796.50 988.50 830.50 574.50 402.00 0.00 z 0.00 4529.50
1911 0.00 0.00 58.50 f 197.00 640.00 922.76 a 878.50 764.00 555.50 170.50 0.00 0.00 4128.26
1912 0.00 0.00 4.50 208.00 487.00 654.00 884.50 774.50 477.32 b 259.50 45.00 0.00 3794.32
1913 0.00 3.50 18.08 a 205.50 381.50 831.50 843.50 969.00 578.50 186.50 58.50 0.00 4076.08
1914 0.00 0.00 11.00 175.50 493.50 753.50 1006.00 828.00 589.50 367.50 77.00 0.00 4301.50
1915 0.00 0.00 0.00 396.00 334.50 581.50 747.50 703.00 520.00 269.50 55.00 0.00 3607.00
1916 0.00 0.00 25.00 109.50 419.00 584.00 1110.50 852.00 489.00 158.00 32.00 1.00 3780.00
1917 0.00 0.00 8.50 48.00 362.50 612.00 981.67 a 793.60 a 525.00 85.00 87.50 0.00 3503.77
1918 0.00 0.00 70.00 71.50 497.00 739.00 830.50 916.50 440.50 364.00 39.50 0.00 3968.50
1919 0.00 0.00 25.50 168.50 503.00 842.50 1026.50 916.50 674.50 160.50 2.00 0.00 4319.50
1920 0.00 0.00 43.50 41.00 496.00 769.50 915.00 840.00 679.00 437.00 2.00 0.00 4223.00
1921 0.00 16.00 64.00 257.50 529.00 965.00 1028.00 900.00 589.50 295.00 9.50 4.50 4658.00
1922 0.00 0.00 0.00 173.00 583.00 832.50 880.50 1027.50 728.50 343.50 37.00 0.00 4605.50
1923 0.00 0.00 7.50 178.00 518.00 815.50 1032.00 841.50 680.00 258.00 46.50 0.00 4377.00
1924 0.00 4.50 0.00 192.50 287.00 647.00 845.00 623.00 487.00 450.00 26.50 0.00 3562.50
1925 0.00 0.00 75.50 360.00 424.00 703.00 844.00 944.00 684.00 37.20 a 8.00 0.00 4079.70
1926 0.00 2.00 27.50 217.00 648.00 645.50 938.50 876.00 482.00 215.00 7.00 0.00 4058.50
1927 0.00 0.00 14.50 167.50 339.50 665.00 798.50 746.00 631.00 329.00 6.50 0.00 3697.50
1928 0.00 0.00 60.00 93.50 596.00 611.50 936.50 896.00 478.50 239.50 17.50 0.00 3929.00
1929 0.00 0.00 33.50 176.50 383.50 706.50 981.50 920.00 467.50 262.00 4.50 0.00 3935.50
1930 0.00 30.50 14.50 251.00 454.50 744.50 1105.00 1036.50 583.50 269.00 72.00 0.00 4561.00
1931 0.00 6.50 15.50 270.50 439.50 956.50 1085.50 930.00 823.00 357.50 97.50 0.00 4982.00
1932 0.00 12.00 15.50 206.00 602.50 897.00 1043.00 984.00 597.50 181.00 33.50 5.00 4577.00
1933 0.00 4.00 42.00 184.00 530.50 1102.50 1123.00 933.50 786.50 251.00 20.00 5.50 4982.50
1934 0.50 1.00 26.50 197.50 882.00 924.50 1109.50 919.00 465.00 412.00 43.50 0.00 4981.00
1935 0.00 0.00 65.50 153.50 397.50 685.00 1176.00 970.00 674.50 239.50 0.00 0.00 4361.50
1936 0.00 0.00 13.00 150.50 701.00 825.00 1279.00 1056.50 740.50 215.00 1.00 0.00 4981.50
1937 0.00 0.00 4.00 143.00 597.00 755.00 1054.00 1113.00 645.00 230.00 48.50 0.00 4589.50
1938 0.00 0.00 60.50 290.00 441.00 797.50 1016.00 1062.00 701.00 477.00 32.00 0.00 4877.00
1939 0.00 0.00 106.50 214.00 732.00 803.00 1040.00 943.50 714.50 249.00 40.50 23.50 4866.50
1940 0.00 0.00 0.00 87.60 e 488.80 c 742.50 1051.00 813.00 704.50 389.50 19.50 0.00 c 4296.40
1941 0.00 0.00 9.50 270.50 621.00 752.50 959.34 c 964.00 616.00 267.50 22.50 14.50 4497.34
1942 0.00 0.00 14.50 308.50 366.00 689.50 873.00 860.00 433.00 280.00 16.00 f 0.00 3824.50
1943 0.00 0.00 49.50 190.00 361.50 747.00 1024.50 922.00 469.00 275.50 0.50 0.00 4039.50
1944 0.00 0.00 0.00 72.00 635.50 760.00 919.50 860.00 392.50 h 271.00 43.50 0.00 3561.50
1945 0.00 0.00 114.00 107.00 329.50 564.50 911.50 897.00 515.50 239.00 10.00 0.00 3688.00
1946 0.00 0.00 110.50 285.00 364.00 755.50 962.50 830.00 526.00 185.00 6.00 0.00 4024.50
1947 1.00 0.00 7.00 91.50 339.50 645.50 923.00 1077.50 591.00 427.00 20.00 0.00 4123.00
1948 0.00 0.00 11.00 243.00 462.50 682.50 984.00 909.00 701.00 248.50 39.50 0.00 4281.00
1949 0.00 0.00 2.50 202.50 594.50 789.00 992.50 990.00 459.50 256.50 54.50 0.00 4341.50
1950 0.00 0.00 7.23 a 39.00 376.00 760.50 826.50 759.00 576.00 292.50 5.50 0.00 3642.23
1951 0.00 0.00 0.00 116.00 521.00 595.50 872.50 799.50 419.00 227.50 5.50 0.00 3556.50
1952 0.00 0.00 0.00 256.00 462.50 836.50 950.50 867.50 669.50 177.00 27.50 0.00 4247.00
1953 0.00 0.00 24.00 61.00 454.00 791.00 911.50 964.50 581.00 415.00 66.50 0.00 4268.50
1954 0.00 1.00 0.00 186.50 335.00 744.50 996.00 890.50 556.50 166.50 62.50 0.00 3939.00
1955 0.00 0.00 21.50 354.50 646.00 726.00 1074.00 1011.12 a 580.50 295.00 4.00 0.00 4712.62
1956 0.00 0.00 2.50 37.00 473.00 915.00 856.50 884.00 496.50 387.00 26.50 0.00 4078.00
1957 0.00 0.00 8.50 211.00 388.00 698.50 1093.00 889.00 490.50 240.50 9.00 0.00 4028.00
1958 0.00 14.00 8.00 136.50 566.50 603.00 853.50 955.00 643.50 310.50 34.50 0.00 4125.00
1959 0.00 0.00 19.00 162.50 482.50 872.00 982.50 1032.00 582.50 120.50 0.00 0.00 4253.50
1960 0.00 0.00 0.00 149.50 481.50 688.00 994.00 953.50 609.50 277.50 21.00 0.00 4174.50
1961 0.00 0.00 22.00 74.50 375.00 812.00 902.00 1027.50 480.00 264.50 13.50 0.00 3971.00
1962 0.00 0.00 1.50 160.00 543.50 742.50 858.50 919.00 481.50 316.00 22.00 14.00 4058.50
1963 0.00 0.00 91.00 204.00 469.00 862.50 973.00 906.00 647.50 506.00 30.50 0.00 4689.50
1964 0.00 0.00 0.00 194.50 578.50 798.50 0.00 z 816.50 491.50 251.00 67.50 0.00 3198.00
1965 0.00 0.00 0.00 121.00 503.00 729.00 949.00 861.00 267.00 296.50 35.50 0.00 3762.00
1966 0.00 0.00 66.00 57.50 393.50 770.50 1106.50 797.00 528.00 207.00 0.00 0.00 3926.00
1967 0.00 0.00 68.50 138.50 359.50 712.50 878.00 828.73 a 579.00 221.00 7.00 0.00 3792.73
1968 0.00 0.00 116.00 178.00 349.00 772.00 899.50 872.50 553.00 235.00 13.50 0.00 3988.50
1969 0.00 0.00 0.00 188.00 525.00 558.00 916.05 a 973.00 630.00 124.00 35.50 0.00 3949.55
1970 0.00 0.00 0.00 136.00 504.50 832.00 993.00 942.00 601.00 206.50 0.50 0.00 4215.50
1971 0.00 0.00 26.50 213.50 415.00 866.50 840.00 930.00 559.00 287.00 14.00 0.00 4151.50
1972 0.00 0.00 6.50 90.00 557.00 766.50 876.00 897.50 539.50 174.50 6.00 0.00 3913.50
1973 0.00 0.00 20.00 126.00 469.50 804.50 967.50 1062.00 514.50 388.50 15.50 0.00 4368.00
1974 0.00 0.00 8.00 193.00 387.00 758.50 1114.50 809.50 455.50 289.50 13.00 0.00 4028.50
1975 0.00 0.00 5.00 67.00 550.50 758.00 1099.00 914.50 458.00 291.50 97.00 0.00 4240.50
1976 0.00 2.50 48.00 246.00 450.50 873.00 1076.50 1032.00 623.00 196.00 10.50 0.00 4558.00
1977 0.00 0.00 36.50 359.00 766.00 835.00 1007.00 760.50 567.00 189.00 42.50 0.00 4562.50
1978 0.00 0.00 25.00 110.00 527.00 776.50 943.50 962.00 742.50 222.00 63.50 0.00 4372.00
1979 0.00 0.00 0.00 114.00 357.50 749.50 948.00 842.00 661.00 194.00 13.50 0.00 3879.50
1980 0.00 0.00 4.50 251.50 576.50 794.50 961.00 858.50 582.50 185.50 47.00 0.00 4261.50
1981 5.00 12.00 53.00 286.00 464.50 768.00 981.00 910.00 607.00 221.00 75.00 0.00 4382.50
1982 0.00 0.50 1.50 174.50 544.50 621.50 1012.50 914.00 536.50 207.00 3.50 4.00 4020.00
1983 0.00 7.00 24.50 85.50 399.00 736.00 1092.50 1122.50 587.00 185.00 28.00 0.00 4267.00
1984 0.00 k 0.00 0.00 121.50 429.00 776.50 977.50 962.50 443.50 287.00 33.50 0.00 4031.00
1985 0.00 3.00 40.00 315.50 658.50 675.50 0.00 z 0.00 z 507.00 198.00 12.00 0.00 2409.50
1986 0.00 0.00 64.00 197.00 540.50 860.50 1013.50 797.50 525.00 257.00 5.00 0.00 4260.00
1987 0.00 2.00 53.50 385.50 726.50 936.00 1094.50 881.00 635.00 159.50 76.50 0.00 4950.00
1988 0.00 0.00 46.50 230.00 736.00 1043.00 1119.00 1018.50 637.50 179.00 13.50 0.00 5023.00
1989 0.00 0.00 24.00 213.00 519.00 737.50 1083.50 937.50 580.50 281.00 3.00 0.00 4379.00
1990 0.00 0.50 38.00 212.50 465.50 807.00 900.50 905.50 717.00 197.00 62.59 a 0.50 4306.59
1991 0.00 1.00 31.00 234.50 605.00 897.00 962.50 931.00 591.00 230.50 3.00 0.00 4486.50
1992 0.00 0.00 23.50 138.00 582.50 699.00 708.50 728.00 547.50 240.00 0.00 0.00 3667.00
1993 0.00 0.00 15.00 108.00 472.50 656.50 872.50 883.00 448.00 227.50 0.00 0.00 3683.00
1994 0.00 0.00 18.00 184.00 662.50 828.00 905.00 822.50 640.00 302.50 30.00 0.00 4392.50
1995 0.00 0.00 60.50 49.50 417.50 832.00 965.00 1009.50 545.50 203.50 1.00 0.00 4084.00
1996 0.00 0.00 9.50 65.50 g 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 9.50
1997 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1998 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1999 0.00 z 0.00 z 39.27 a 199.00 524.50 762.41 a 1012.50 906.00 514.00 216.48 a 70.86 a 0.50 4245.53
2000 0.00 18.64 a 92.50 170.00 558.50 737.00 947.50 918.00 584.50 324.50 20.50 0.00 4371.64
2001 0.00 b 0.00 0.00 193.50 536.50 779.00 1049.50 955.50 605.00 220.50 139.50 0.00 4479.00
2002 0.00 2.00 3.00 167.00 334.00 879.50 1090.50 882.50 639.50 74.00 14.50 0.00 a 4086.50
2003 0.00 a 0.00 53.50 228.00 441.50 730.00 962.00 979.00 531.50 334.00 14.00 0.00 4273.50
2004 0.00 0.00 0.00 z 208.00 433.00 652.50 890.00 737.00 699.50 264.50 40.00 0.00 3924.50
2005 0.00 4.00 37.50 264.00 457.50 855.50 1026.50 896.50 723.50 258.50 47.50 0.00 4571.00
2006 0.00 0.00 22.00 290.00 531.50 815.50 1089.00 939.50 471.00 189.00 52.50 0.00 4400.00
2007 0.00 0.00 70.50 232.00 625.00 850.00 1047.50 886.50 638.00 332.50 29.50 0.00 4711.50
2008 0.00 0.00 0.00 96.50 396.00 685.50 965.00 906.50 582.00 190.50 59.50 0.00 3881.50
2009 0.00 0.00 38.50 146.00 480.00 682.50 796.00 789.00 667.50 68.00 53.50 0.00 3721.00
2010 0.00 0.00 39.50 315.00 477.00 764.00 968.50 1019.00 524.50 290.00 52.00 0.00 4449.50
2011 0.00 0.00 0.00 95.00 426.50 742.50 1092.00 916.50 538.50 349.50 20.00 0.50 4181.00
2012 2.00 0.00 264.50 241.00 587.00 866.00 1154.00 881.00 587.50 161.00 18.50 0.00 4762.50
2013 0.00 0.00 1.55 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 1.55
Period of Record Statistics
MEAN 0.07 1.31 30.05 181.12 488.97 760.90 962.41 897.15 576.19 254.72 30.94 0.64 4207.47
S.D. 0.51 4.20 40.14 81.53 110.55 101.77 104.18 93.79 94.31 86.36 27.12 2.98 382.74
SKEW 8.44 4.51 2.95 0.34 0.59 0.43 0.11 -0.09 -0.01 0.45 1.09 5.78 0.24
MAX 5.00 30.50 264.50 396.00 882.00 1102.50 1279.00 1122.50 823.00 506.00 139.50 23.50 5023.00
MIN 0.00 0.00 0.00 30.00 203.10 558.00 708.50 623.00 267.00 37.20 0.00 0.00 3503.77
NO YRS 114 115 114 114 114 112 109 109 110 111 111 114 97