BROOKINGS 2 NE, SOUTH DAKOTA

Monthly Total Growing Degree Days

(391076)

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 a 0.00 0.00 z 0.00 z 379.00 883.00 994.50 892.80 a 715.50 257.00 80.00 0.00 4201.80
1894 0.00 a 0.00 47.00 169.00 528.00 839.50 970.00 853.50 533.00 140.00 5.50 1.00 4086.50
1895 0.00 11.50 37.50 398.50 514.00 724.00 899.50 885.50 665.69 a 215.00 32.00 0.00 4383.19
1896 0.00 11.50 4.50 242.00 623.50 755.50 922.00 786.62 c 203.00 j 104.37 a 0.00 0.00 3449.99
1897 0.00 0.00 9.30 a 174.50 499.00 709.00 968.75 c 719.50 793.00 330.67 a 37.76 a 0.00 4241.48
1898 0.00 0.00 30.00 206.50 449.50 789.00 940.50 919.50 621.21 a 130.50 14.50 0.00 4101.21
1899 0.00 a 1.50 0.00 223.50 473.50 746.50 904.00 910.50 512.00 271.00 64.50 0.50 4107.50
1900 1.03 a 0.00 25.50 332.50 614.83 a 782.50 873.50 1057.50 343.50 q 424.50 15.00 0.00 4126.87
1901 0.00 0.00 14.50 248.00 526.00 771.21 a 1125.00 942.00 526.50 282.00 16.00 0.00 4451.21
1902 0.00 3.00 73.50 141.00 563.00 605.00 916.00 777.50 424.50 244.50 26.00 0.00 a 3774.00
1903 0.00 0.00 13.50 190.50 517.18 a 667.00 835.50 781.00 486.21 a 274.50 55.00 0.00 3820.39
1904 0.00 0.00 6.00 96.00 463.50 670.00 780.50 772.50 569.50 304.50 80.00 2.00 3744.50
1905 0.00 0.00 a 82.50 144.00 344.50 714.50 807.55 a 935.00 681.50 215.50 41.50 0.00 3966.55
1906 0.00 8.50 3.00 254.00 490.00 664.00 820.50 913.50 672.00 256.50 28.00 0.00 4110.00
1907 0.00 1.00 87.00 50.17 a 269.00 739.50 903.00 905.50 547.50 250.50 27.50 0.00 3780.67
1908 0.00 0.00 18.50 296.50 469.00 701.00 920.50 818.00 810.50 278.50 67.00 0.00 4379.50
1909 0.00 0.00 6.50 65.50 482.00 773.50 918.63 a 1051.50 605.00 256.00 97.50 2.87 d 4259.00
1910 0.00 u 0.00 d 245.50 366.00 396.00 795.50 970.50 842.50 603.00 429.00 0.00 0.00 4648.00
1911 0.00 0.00 94.50 192.00 667.00 999.00 954.00 814.50 629.00 204.50 0.00 a 0.00 4554.50
1912 0.00 0.00 8.50 232.00 505.50 664.50 938.50 823.50 498.50 294.50 a 38.00 0.00 4003.50
1913 0.00 0.00 19.24 b 250.00 451.50 876.00 912.95 a 992.50 643.45 a 0.00 z 64.00 3.00 4212.64
1914 0.00 0.00 18.50 216.21 a 547.84 b 825.00 1058.50 877.50 638.50 396.80 a 64.00 0.00 4642.85
1915 0.00 0.00 0.00 a 445.50 368.50 629.00 771.00 745.00 563.57 b 338.50 78.50 0.00 3939.57
1916 0.00 0.00 24.50 165.00 484.50 638.50 1177.50 941.00 596.50 241.50 59.50 5.50 4334.00
1917 0.00 0.00 20.00 96.00 364.77 a 663.00 982.00 808.00 560.17 a 121.50 111.50 0.00 3726.94
1918 0.00 1.56 a 134.50 111.00 624.50 819.50 936.50 973.92 a 440.17 a 382.50 90.50 0.00 4514.64
1919 0.00 0.00 a 45.50 177.00 507.50 858.50 1042.00 887.50 688.45 a 187.50 4.00 0.00 4397.95
1920 0.00 0.00 75.50 56.50 523.00 787.50 955.00 844.00 700.00 456.00 1.55 a 0.00 4399.05
1921 0.00 12.50 79.50 285.50 534.50 942.00 1054.00 920.70 a 645.00 322.92 a 8.50 4.00 4809.12
1922 0.00 0.00 3.74 b 206.50 605.00 885.00 877.00 1008.00 754.00 372.00 49.00 0.00 4760.24
1923 0.00 0.00 11.50 198.62 a 550.00 864.50 1057.00 840.88 c 663.89 c 258.50 44.00 2.50 4491.38
1924 0.00 a 4.50 0.00 230.17 a 308.50 687.50 861.50 879.50 521.00 471.20 a 28.50 0.00 3992.37
1925 0.00 0.00 98.50 412.00 470.00 754.50 913.50 491.00 o 797.00 64.00 10.50 0.00 3520.00
1926 0.00 0.50 45.50 264.31 a 760.00 722.00 997.68 a 955.32 a 569.50 281.50 15.00 0.00 4611.31
1927 0.00 0.00 34.00 216.43 b 415.00 733.50 880.40 a 788.50 701.00 384.00 10.50 0.00 4163.33
1928 0.00 0.00 81.50 115.00 628.27 a 654.50 982.50 948.00 557.00 302.00 26.00 0.00 4294.77
1929 0.00 a 0.00 49.50 222.50 449.50 772.00 1023.50 970.00 516.50 301.00 3.50 0.00 4308.00
1930 0.00 37.00 32.00 294.00 523.00 786.50 1135.12 a 1051.42 a 625.50 310.00 65.50 0.00 4860.03
1931 6.00 4.50 20.50 285.00 a 503.00 1019.00 1117.00 974.50 838.00 395.50 100.50 0.00 5263.50
1932 0.00 a 12.00 11.50 231.00 625.00 895.50 1068.50 963.58 a 626.00 220.50 29.50 1.50 4684.58
1933 0.00 4.67 a 38.50 209.50 522.00 1121.38 a 1128.92 a 933.00 802.00 254.50 23.50 2.50 5040.46
1934 2.50 0.00 42.00 230.50 925.50 946.50 1112.00 935.50 510.50 436.00 55.00 0.00 a 5196.00
1935 0.00 0.00 83.00 172.50 391.00 715.00 1205.00 993.50 686.50 266.50 7.50 0.00 4520.50
1936 0.00 0.00 17.50 174.50 706.00 847.50 1300.00 1094.50 756.00 266.00 6.50 0.00 5168.50
1937 0.00 0.00 15.50 175.00 619.00 762.50 1105.50 1174.00 686.00 257.00 66.50 0.00 4861.00
1938 0.00 0.00 84.50 303.50 477.00 839.50 1070.50 1105.00 752.00 543.50 48.50 0.00 5224.00
1939 0.00 0.00 107.50 223.00 766.00 874.00 1157.00 996.50 819.11 b 275.90 a 36.50 24.50 5280.01
1940 0.00 0.00 a 0.00 144.50 522.00 830.50 1105.50 927.50 784.00 474.50 33.00 0.00 4821.50
1941 0.00 0.00 11.00 301.00 701.00 811.50 1045.00 1052.50 701.50 342.00 56.00 22.00 5043.50
1942 1.00 0.00 29.50 367.00 436.50 754.00 948.50 930.00 a 510.00 343.50 39.50 0.00 4359.50
1943 0.00 1.00 81.50 249.00 438.00 827.00 1027.50 967.50 525.50 311.00 4.50 0.00 4432.50
1944 8.00 0.00 0.00 108.00 675.50 837.00 934.50 904.00 621.50 311.00 54.50 0.00 4454.00
1945 0.00 0.00 163.00 157.00 384.50 617.00 934.50 950.50 554.00 304.50 22.00 0.00 4087.00
1946 0.00 0.00 157.00 351.72 a 434.00 823.50 988.00 845.00 592.00 274.50 11.00 1.50 4478.22
1947 3.50 1.50 18.50 116.50 397.32 a 712.00 965.00 1148.50 709.00 513.00 28.00 0.00 4612.82
1948 0.00 0.00 52.00 366.50 515.50 743.00 1009.50 971.00 740.00 c 295.00 58.50 0.00 a 4751.00
1949 0.00 0.00 8.00 251.00 663.50 878.28 a 1087.00 1035.50 536.00 332.98 b 87.00 0.00 4879.26
1950 0.00 0.00 14.00 80.17 a 425.00 815.00 848.00 788.50 669.31 a 421.00 38.00 0.00 4098.98
1951 0.00 6.00 0.00 a 117.50 576.50 644.50 886.50 834.42 a 406.50 246.40 b 13.50 1.50 3733.31
1952 0.00 0.00 0.00 278.00 513.50 883.00 969.00 875.00 647.00 174.00 31.00 0.00 4370.50
1953 0.00 0.00 b 25.50 81.50 498.50 837.00 942.00 952.50 590.00 426.50 76.50 0.00 b 4430.00
1954 0.00 8.00 1.60 b 258.10 a 374.50 794.00 1032.50 887.00 584.50 182.50 83.50 0.00 4206.21
1955 0.00 0.00 31.50 394.14 a 647.00 694.50 1144.86 b 1037.50 627.41 a 312.14 b 9.50 0.00 b 4898.55
1956 0.00 0.00 6.20 a 76.50 554.50 955.00 863.00 861.00 544.00 466.00 31.00 0.00 4357.20
1957 0.00 0.00 a 10.33 a 228.50 439.00 687.50 1110.00 898.00 506.50 258.50 16.50 0.00 4154.83
1958 0.00 a 18.00 8.50 176.38 a 636.50 654.50 871.00 973.00 642.32 b 356.50 46.50 0.00 4383.20
1959 0.00 0.00 30.50 212.00 550.50 880.00 967.00 1075.50 625.18 b 137.50 2.00 1.60 b 4481.78
1960 0.00 0.00 0.00 a 228.33 c 488.50 711.11 c 955.50 914.50 609.50 310.00 b 28.20 e 0.00 4245.64
1961 0.00 0.00 32.00 98.00 422.50 787.00 892.00 950.50 514.29 b 281.50 12.50 0.00 3990.29
1962 0.00 0.00 c 0.00 d 192.00 606.00 747.69 d 868.50 876.00 494.00 351.50 41.00 27.00 4203.69
1963 0.00 0.00 114.50 267.00 513.50 889.50 959.00 893.50 654.50 504.50 22.50 0.00 a 4818.50
1964 0.00 0.50 2.67 b 238.50 599.50 796.50 1036.00 811.50 501.21 a 230.50 79.50 0.00 4296.38
1965 0.00 0.00 0.00 c 119.00 524.00 752.50 920.00 843.00 310.00 292.50 31.00 0.00 3792.00
1966 0.00 0.00 73.07 c 81.00 398.50 767.50 1086.00 814.00 555.50 216.50 5.00 0.00 3997.07
1967 0.00 0.00 79.05 a 162.50 359.50 718.00 850.50 801.50 536.50 234.50 10.00 0.00 3752.05
1968 0.00 0.00 124.50 187.00 354.50 783.50 879.50 847.50 513.50 232.50 30.50 0.00 a 3953.00
1969 0.00 c 0.00 b 0.00 168.00 524.00 554.50 917.00 921.00 593.50 140.00 31.50 0.00 3849.50
1970 0.00 0.00 0.00 150.50 517.00 804.00 960.00 882.50 537.41 a 216.00 1.00 0.50 4068.91
1971 0.00 0.00 25.00 217.00 400.50 859.00 801.50 885.00 533.50 302.00 26.50 0.00 4050.00
1972 0.00 0.00 7.00 92.00 544.00 740.00 842.50 858.50 497.50 170.50 7.00 0.00 3759.00
1973 0.00 0.00 27.50 136.50 411.00 792.00 934.00 989.00 516.50 357.50 20.00 0.00 4184.00
1974 0.00 0.00 19.00 184.00 369.93 a 707.07 a 1063.82 a 776.00 430.86 a 253.50 21.50 0.00 3825.68
1975 0.00 e 0.00 6.89 d 76.00 563.50 723.00 1040.00 901.07 a 429.00 287.00 95.77 d 0.00 4122.22
1976 0.00 7.50 55.50 255.50 451.00 831.50 1024.03 a 972.88 a 568.50 186.00 a 14.00 0.00 4366.42
1977 0.00 0.00 38.75 a 336.21 a 772.33 b 804.00 992.50 721.00 555.50 150.00 54.44 c 0.00 a 4424.73
1978 0.00 0.00 27.00 115.00 495.48 a 732.41 a 907.50 881.50 693.50 196.00 66.00 0.00 4114.40
1979 0.00 0.00 0.00 a 126.50 345.50 717.50 923.00 790.50 629.50 179.00 14.00 0.00 3725.50
1980 0.00 a 0.00 10.33 a 212.59 a 525.00 769.50 942.00 862.50 591.00 200.00 47.07 a 0.00 4159.99
1981 2.50 24.00 59.00 282.41 a 416.43 a 770.00 943.00 849.00 571.11 c 220.50 83.00 0.00 4220.96
1982 0.00 0.00 7.50 161.50 550.00 621.50 960.50 864.50 534.50 234.50 3.50 7.50 3945.50
1983 0.00 0.00 28.50 87.00 383.00 718.00 1060.00 1081.50 583.50 218.50 56.00 0.00 4216.00
1984 0.00 0.00 0.00 114.00 403.50 749.00 923.00 934.50 432.50 279.00 30.00 0.00 3865.50
1985 0.00 0.00 28.50 298.50 604.50 635.00 878.00 722.00 507.50 166.00 7.50 0.00 3847.50
1986 0.00 0.00 60.50 192.00 499.50 810.00 968.00 725.50 515.50 239.00 6.50 0.00 4016.50
1987 0.00 0.00 40.00 318.50 649.00 867.50 1010.50 792.50 561.00 127.50 62.00 0.00 4428.50
1988 0.00 0.00 34.00 145.00 669.50 972.00 1009.00 937.00 562.00 127.00 9.50 0.00 4465.00
1989 0.00 0.00 25.00 205.00 464.50 702.00 1004.00 877.00 523.00 259.00 10.00 0.00 4069.50
1990 2.00 0.00 35.50 207.50 409.00 780.00 860.50 860.50 659.00 161.50 53.00 0.00 4028.50
1991 0.00 0.00 35.00 231.50 583.50 920.00 920.00 911.00 548.50 208.00 0.00 0.00 4357.50
1992 0.00 1.00 30.50 94.50 572.47 a 683.00 680.50 708.00 506.00 227.00 0.00 0.00 3502.97
1993 0.00 0.00 8.00 87.50 445.00 648.50 862.00 867.00 387.00 181.00 3.00 0.00 3489.00
1994 0.00 0.00 23.00 163.50 584.50 782.00 821.00 774.00 620.50 276.00 30.50 0.00 4075.00
1995 0.00 0.00 61.00 43.00 376.00 798.50 929.00 975.00 507.00 188.50 0.00 0.00 3878.00
1996 0.00 1.00 13.50 92.00 373.50 806.00 851.50 860.00 520.50 241.00 7.50 0.00 3766.50
1997 0.00 0.00 12.50 147.00 348.00 839.00 940.50 842.50 627.50 329.50 6.50 0.00 4093.00
1998 0.00 6.00 40.00 197.50 669.00 688.50 936.00 910.00 710.50 257.00 26.50 17.00 4458.00
1999 0.00 1.00 33.50 180.50 548.00 779.00 1023.00 877.50 528.00 208.00 96.50 1.50 4276.50
2000 0.00 29.00 101.00 166.00 550.50 735.00 937.50 909.00 558.50 324.00 35.00 0.00 4345.50
2001 0.00 0.00 0.00 193.50 557.00 792.50 1025.00 0.00 z 586.00 212.00 178.50 0.00 3544.50
2002 0.00 4.00 2.00 192.50 364.50 887.00 1093.50 882.00 644.00 108.50 14.00 0.00 4192.00
2003 3.00 0.00 54.00 255.00 428.50 731.00 943.50 939.50 0.00 z 297.50 17.00 0.00 3669.00
2004 0.00 0.00 67.00 212.00 436.00 671.00 880.00 710.50 688.00 250.50 39.50 0.00 3954.50
2005 0.00 5.50 31.50 279.50 468.50 878.50 997.00 865.00 732.00 279.50 56.50 0.00 4593.50
2006 0.00 0.00 22.00 273.00 538.50 803.00 1036.50 902.50 456.50 207.00 48.50 0.00 4287.50
2007 0.00 0.00 85.50 210.00 642.50 842.50 983.00 880.50 625.50 327.00 34.50 0.00 4631.00
2008 0.00 0.00 0.00 104.00 415.00 735.50 965.50 892.50 613.50 219.50 67.00 0.00 4012.50
2009 0.00 0.00 42.00 146.00 481.00 717.00 798.50 801.00 662.50 81.00 68.00 0.00 3797.00
2010 0.00 0.00 35.50 337.00 488.00 781.50 976.00 1026.00 543.50 320.50 57.50 0.00 4565.50
2011 0.00 0.00 4.13 a 114.00 453.63 a 758.50 1113.50 893.00 535.50 362.50 28.50 0.00 4263.27
2012 2.50 0.00 257.50 278.00 612.50 868.50 1153.00 857.67 a 565.34 a 170.00 32.50 2.00 4799.51
2013 0.00 a 0.00 10.00 u 0.00 z 0.00 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 0.27 1.89 38.41 201.31 508.15 777.93 968.34 898.65 594.43 271.87 36.70 1.10 4289.49
S.D. 1.07 5.51 44.99 85.70 109.52 93.09 101.02 93.46 99.21 94.88 30.57 4.21 391.89
SKEW 5.04 4.14 2.35 0.44 0.66 0.53 0.32 0.35 0.20 0.48 1.25 4.93 0.50
MAX 8.00 37.00 257.50 445.50 925.50 1121.38 1300.00 1174.00 838.00 543.50 178.50 27.00 5280.01
MIN 0.00 0.00 0.00 43.00 269.00 554.50 680.50 708.00 310.00 64.00 0.00 0.00 3489.00
NO YRS 120 121 119 119 120 120 120 118 117 119 120 120 112