LAKE PARK, IOWA

Monthly Total Growing Degree Days

(134561)

Base Temperature = 40 F

File last updated on Apr 6, 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
1912 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 904.68 a 602.50 345.50 61.00 3.32 c 1917.00
1913 0.00 b 5.50 35.13 a 230.89 b 501.50 866.50 970.30 a 998.00 672.32 b 302.00 99.00 8.50 4689.65
1914 0.00 0.00 a 18.50 257.00 623.50 889.00 1081.90 a 988.79 b 691.00 501.88 b 124.14 a 0.00 5175.71
1915 0.00 b 0.00 1.03 a 478.50 440.50 708.00 868.00 814.00 650.00 413.50 108.62 a 1.00 4483.15
1916 0.00 b 0.00 a 42.50 182.00 580.50 704.00 1200.73 a 1027.98 c 669.83 a 301.00 67.50 4.43 c 4780.47
1917 0.00 b 0.00 b 20.15 a 141.50 474.30 a 747.41 a 978.80 d 932.07 a 618.00 140.50 97.00 0.00 a 4149.73
1918 0.00 a 0.00 123.00 137.00 679.93 a 852.93 a 984.25 a 998.00 526.00 416.50 86.00 0.00 z 4803.61
1919 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
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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
1926 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
1927 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 736.50 922.50 818.73 c 678.46 d 406.50 15.50 0.00 b 3578.19
1928 0.00 4.00 65.00 101.00 665.00 666.50 1004.00 772.00 h 585.00 d 233.00 i 30.50 1.00 3122.00
1929 0.00 0.00 36.00 249.50 453.50 730.00 986.50 960.50 554.50 339.00 2.50 0.00 4312.00
1930 0.00 32.50 34.50 268.50 530.00 772.00 1133.00 0.00 z 636.00 339.00 91.50 0.00 a 3837.00
1931 2.00 5.50 2.50 323.04 b 480.50 b 964.29 b 1002.91 d 1009.64 b 897.78 c 192.50 n 124.50 1.00 4813.64
1932 0.00 3.11 a 10.00 207.50 629.50 912.50 1031.78 a 941.50 596.50 238.50 27.93 a 0.57 d 4599.40
1933 0.00 b 0.00 23.00 200.00 537.50 1077.93 a 1068.50 870.07 a 810.52 a 271.50 32.50 0.00 a 4891.52
1934 0.00 b 0.00 a 30.50 216.50 901.07 a 955.50 1070.00 885.50 516.00 458.50 65.17 a 0.00 5098.74
1935 0.00 0.00 82.00 168.00 392.50 702.50 1176.00 985.50 683.00 266.00 7.50 0.00 4463.00
1936 0.00 0.00 b 22.00 195.50 725.00 794.00 1270.50 1089.50 775.34 a 292.50 20.00 2.00 5186.34
1937 0.00 0.00 13.50 184.50 611.00 765.50 1065.00 1113.00 689.00 275.00 56.50 0.00 4773.00
1938 0.00 0.00 105.00 301.00 473.78 a 807.50 1042.50 1052.00 737.00 546.50 59.50 0.00 5124.78
1939 0.00 0.00 107.50 213.50 771.00 864.50 1051.00 880.50 803.50 303.00 58.50 50.50 5103.50
1940 0.00 0.00 12.40 a 149.00 522.00 845.00 1086.50 878.50 776.00 503.00 34.00 0.00 4806.40
1941 0.00 0.00 8.50 318.00 760.50 822.50 1036.50 1009.50 715.50 396.50 74.50 10.50 5152.50
1942 0.50 0.00 32.00 378.00 489.50 798.50 973.00 951.50 539.50 358.00 59.00 0.00 4579.50
1943 0.00 2.50 84.50 236.50 450.50 849.00 1035.00 957.50 532.00 332.00 1.00 0.00 4480.50
1944 20.50 0.00 0.00 109.00 693.50 879.00 944.00 905.00 640.00 363.50 88.00 0.00 4642.50
1945 0.00 0.00 172.50 193.00 379.00 625.50 937.00 920.00 602.50 328.50 52.00 0.00 4210.00
1946 0.00 0.00 185.00 353.00 425.50 802.00 985.00 836.00 578.00 342.00 10.50 2.00 4519.00
1947 0.00 0.00 8.50 109.50 402.00 671.50 951.50 1132.50 708.00 540.00 32.50 0.00 4556.00
1948 0.00 z 0.00 z 0.00 z 340.00 532.50 766.00 1018.00 980.78 b 584.50 g 329.00 70.50 0.00 a 4036.78
1949 0.00 0.00 9.50 250.00 644.50 900.00 1075.18 a 1009.29 e 505.00 c 421.94 d 108.00 0.00 a 4923.42
1950 0.00 0.00 12.00 53.57 b 481.00 823.00 0.00 z 414.50 n 630.00 428.50 41.50 0.00 2469.57
1951 0.00 5.50 1.55 a 108.62 a 624.50 658.97 a 919.50 867.50 489.50 330.31 b 22.00 4.00 4031.95
1952 0.00 0.00 13.00 292.50 524.50 916.50 988.00 845.50 684.50 222.00 102.00 0.00 4588.50
1953 0.00 0.00 42.50 97.50 544.00 712.00 f 0.00 z 961.53 b 640.00 499.00 114.50 0.00 2899.03
1954 0.00 23.00 6.50 308.00 0.00 z 0.00 z 1030.00 0.00 z 651.43 b 253.68 a 61.00 h 0.00 2272.61
1955 0.00 b 0.00 a 35.50 412.00 689.23 a 0.00 z 688.50 m 1138.00 733.50 330.00 f 10.00 0.00 3018.23
1956 0.00 0.00 11.00 133.00 606.50 1042.00 943.50 962.00 645.00 542.50 48.46 d 0.00 4933.96
1957 0.00 1.00 7.75 a 286.50 532.00 801.00 1153.72 a 940.00 578.00 281.00 19.00 0.00 4599.97
1958 0.00 18.00 10.00 225.50 700.50 729.00 933.00 1054.00 744.50 424.00 84.00 0.00 b 4922.50
1959 0.00 0.00 a 27.50 238.50 632.40 a 932.00 1012.00 1101.00 678.50 176.50 12.00 5.00 4815.40
1960 0.00 0.00 3.50 255.50 581.00 792.00 1000.50 1001.00 683.00 368.00 54.50 2.50 4741.50
1961 0.00 0.00 29.50 118.50 475.85 a 870.00 965.50 1020.00 621.50 390.00 32.00 1.50 4524.35
1962 0.00 0.00 1.50 224.50 730.50 829.50 972.50 981.50 602.00 462.00 65.50 39.50 4909.00
1963 0.00 0.50 137.00 328.50 610.50 1006.00 1060.00 984.00 762.50 621.50 99.50 3.00 5613.00
1964 0.00 1.50 15.00 262.00 736.00 896.00 1112.50 869.00 615.50 321.50 159.00 0.00 4988.00
1965 0.00 a 0.00 0.00 169.00 677.00 859.00 1012.00 920.00 424.00 385.00 60.50 0.00 4506.50
1966 0.00 0.50 115.50 117.50 493.00 825.50 1108.00 859.50 624.00 308.50 8.00 0.00 4460.00
1967 0.00 a 0.00 98.00 218.50 426.00 771.00 938.00 854.00 597.50 280.11 c 20.69 a 0.00 4203.80
1968 0.00 0.00 z 146.50 266.50 428.00 880.00 973.00 961.50 637.50 351.00 32.00 0.00 4676.00
1969 0.00 0.00 0.00 261.50 615.87 a 671.00 1041.00 961.00 630.50 219.50 42.50 0.00 4442.87
1970 0.00 0.00 0.00 244.00 661.50 928.00 1038.00 969.00 669.00 269.50 6.00 4.00 4789.00
1971 0.00 0.00 13.50 191.00 h 482.22 d 930.00 d 873.00 887.24 b 570.00 e 374.07 a 50.89 b 0.00 a 4180.92
1972 0.00 b 0.00 c 16.02 a 0.00 z 652.72 d 799.14 a 870.77 c 874.64 c 541.00 189.10 a 15.50 0.00 z 3958.89
1973 0.00 a 0.00 52.50 199.00 457.00 858.50 956.00 989.00 572.00 421.00 29.00 0.00 4534.00
1974 0.00 0.00 21.50 224.00 450.00 776.50 1139.00 820.00 543.50 275.00 55.50 0.00 4305.00
1975 0.00 0.00 b 5.00 95.00 630.00 800.00 1074.00 961.50 508.50 334.50 133.50 0.00 4542.00
1976 0.00 15.02 a 65.50 343.00 518.00 864.00 1037.00 967.00 620.00 216.00 20.00 0.00 4665.52
1977 0.00 0.00 81.50 414.00 811.50 890.50 1041.00 635.00 g 664.00 213.50 72.50 0.00 4188.50
1978 0.00 0.00 32.00 137.00 567.50 827.50 976.50 947.00 797.50 266.50 82.00 0.00 4633.50
1979 0.00 0.00 0.00 138.00 428.00 795.50 981.50 856.50 688.97 a 260.00 34.00 0.00 4182.47
1980 0.00 a 0.00 11.00 259.00 647.00 867.00 1059.00 912.50 618.50 221.13 a 61.00 1.50 i 4656.13
1981 8.27 a 37.69 b 65.50 335.50 520.50 820.00 984.50 888.00 622.50 225.50 108.46 d 0.00 4616.42
1982 0.00 0.00 9.50 198.00 607.50 679.00 1019.50 890.50 606.50 301.50 23.00 9.00 4344.00
1983 0.00 0.00 39.50 101.00 410.50 792.00 1125.00 1127.50 668.50 271.00 58.45 a 0.00 4593.45
1984 0.00 0.00 0.00 142.50 476.00 861.50 976.00 1015.50 523.00 329.00 37.50 0.00 4361.00
1985 0.00 0.00 48.50 338.50 661.00 727.00 968.00 794.50 557.50 212.00 8.50 0.00 4315.50
1986 0.00 0.00 65.00 259.50 575.00 891.00 1036.00 783.00 611.50 289.00 9.00 0.00 4519.00
1987 1.50 2.50 65.00 366.00 729.50 948.00 1056.00 836.50 635.00 149.50 83.50 0.00 4873.00
1988 0.00 0.00 29.50 147.00 752.00 996.50 1027.50 1017.50 655.00 167.00 17.00 0.00 4809.00
1989 0.00 0.00 50.00 232.00 548.00 789.50 1050.00 933.50 590.50 335.00 9.00 0.50 4538.00
1990 0.00 0.00 39.50 228.00 434.50 878.00 941.00 906.00 726.00 228.00 80.50 0.00 4461.50
1991 0.00 0.00 35.00 251.00 640.00 943.00 973.00 919.00 597.00 249.50 0.50 0.00 4608.00
1992 0.00 0.50 39.00 118.00 569.50 766.00 753.50 745.50 558.00 281.00 3.50 0.00 3834.50
1993 0.00 0.00 8.50 112.50 481.50 707.00 921.00 918.00 450.50 241.00 3.50 0.00 3843.50
1994 0.00 0.00 32.00 229.50 628.50 911.00 925.50 881.00 710.50 358.00 44.50 0.00 4720.50
1995 0.00 0.00 49.50 78.00 437.00 848.00 992.00 1020.00 541.00 244.00 0.00 0.00 4209.50
1996 0.00 4.50 17.50 109.00 393.00 845.50 886.00 862.50 558.50 298.00 12.50 0.00 3987.00
1997 0.00 0.00 25.00 158.50 357.50 886.50 984.50 866.50 696.50 388.50 7.50 0.00 4371.00
1998 0.00 11.50 55.50 263.00 763.50 760.50 998.50 969.50 791.00 349.00 52.00 40.00 5054.00
1999 0.00 0.00 42.00 226.50 599.50 821.00 1080.00 919.50 613.50 279.50 139.50 1.50 4722.50
2000 0.00 36.50 126.50 220.00 643.00 783.00 977.50 939.00 606.00 355.50 45.00 0.00 4732.00
2001 0.00 0.00 0.00 245.50 584.50 830.00 1056.50 979.00 601.50 282.50 230.50 13.50 4823.50
2002 2.00 0.00 3.50 219.00 443.50 915.00 1088.00 843.00 668.00 144.50 7.50 0.00 4334.00
2003 3.50 0.00 69.00 266.50 460.50 776.50 972.50 983.00 584.00 353.50 25.50 0.00 4494.50
2004 0.00 0.00 67.00 231.50 489.00 722.00 891.50 745.00 734.50 287.00 57.00 0.00 4224.50
2005 0.00 7.00 40.50 292.50 473.00 897.00 1019.50 888.00 764.50 339.50 80.00 0.00 4801.50
2006 0.00 0.00 20.50 365.50 660.50 965.00 1205.50 1050.50 596.00 290.50 78.50 2.00 5234.50
2007 0.00 0.00 129.50 283.00 789.50 986.50 1146.50 1052.00 755.00 476.00 46.00 0.00 5664.00
2008 0.00 0.00 b 1.50 150.50 556.50 941.00 1134.50 1034.50 745.50 319.00 108.00 0.00 4991.00
2009 0.00 0.00 63.00 194.50 606.57 a 880.00 945.00 971.00 780.50 129.00 114.50 0.00 4684.07
2010 0.00 0.00 66.65 a 401.00 638.00 969.50 1150.00 1176.00 689.50 469.50 74.50 0.00 b 5634.65
2011 0.00 0.00 18.00 172.50 570.50 916.50 1288.00 1072.50 703.89 c 454.50 59.00 0.00 5255.39
2012 8.00 0.00 364.50 373.50 788.00 1019.50 1307.50 1048.00 736.00 260.00 80.00 5.50 5990.50
2013 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 z 0.00
Period of Record Statistics
MEAN 0.51 2.43 44.26 227.32 571.90 838.06 1022.90 947.63 642.74 325.92 54.97 2.40 4678.95
S.D. 2.48 7.26 53.77 88.86 116.82 94.13 93.41 89.52 86.99 99.52 42.16 8.07 401.72
SKEW 6.55 3.69 2.94 0.36 0.35 0.05 0.58 0.16 0.17 0.49 1.07 4.67 0.65
MAX 20.50 37.69 364.50 478.50 901.07 1077.93 1307.50 1176.00 897.78 621.50 230.50 50.50 5990.50
MIN 0.00 0.00 0.00 53.57 357.50 625.50 753.50 745.00 424.00 129.00 0.00 0.00 3834.50
NO YRS 91 90 90 89 90 89 89 88 92 90 92 90 77