LAKE PARK, IOWA

Monthly Total Growing Degree Days

(134561)

Base Temperature = 50 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 594.68 a 344.50 106.00 0.00 0.00 c 1045.18
1913 0.00 b 0.00 0.00 a 81.43 b 211.50 566.50 660.30 a 688.00 391.61 b 136.50 5.50 0.00 2741.34
1914 0.00 0.00 a 0.00 87.50 324.50 589.00 771.90 a 678.79 b 391.00 232.50 b 22.24 a 0.00 3097.43
1915 0.00 b 0.00 0.00 a 242.00 177.50 410.00 558.00 504.00 350.00 147.50 12.41 a 0.00 2401.41
1916 0.00 b 0.00 a 0.00 25.50 290.00 404.00 890.73 a 717.98 c 392.07 a 114.00 7.50 0.00 c 2841.78
1917 0.00 b 0.00 b 0.00 a 41.50 189.10 a 447.41 a 668.80 d 622.07 a 322.50 39.50 2.00 0.00 a 2332.88
1918 0.00 a 0.00 15.00 15.00 384.92 a 552.93 a 674.25 a 688.00 251.00 187.50 14.00 0.00 z 2782.60
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 436.50 612.50 508.73 c 420.00 d 142.50 0.00 0.00 b 2120.23
1928 0.00 0.00 12.00 19.00 357.00 366.50 694.00 542.00 h 304.04 d 93.00 i 0.00 0.00 1752.54
1929 0.00 0.00 0.00 57.50 210.00 430.00 676.50 650.50 267.50 122.00 0.00 0.00 2414.00
1930 0.00 0.50 5.50 85.00 256.00 472.00 823.00 0.00 z 352.00 157.50 7.50 0.00 a 2159.00
1931 0.00 0.00 0.00 145.18 b 254.95 b 664.29 b 692.91 d 699.64 b 601.11 c 65.50 n 24.00 0.00 3082.07
1932 0.00 0.00 a 0.00 40.00 331.50 612.50 721.78 a 631.50 296.50 87.50 0.00 a 0.00 d 2721.28
1933 0.00 b 0.00 0.00 53.00 261.50 777.93 a 758.50 560.07 a 510.52 a 89.50 5.50 0.00 a 3016.52
1934 0.00 b 0.00 a 0.00 74.50 591.07 a 655.50 760.00 575.50 234.00 204.00 3.62 a 0.00 3098.19
1935 0.00 0.00 16.50 49.00 133.50 405.50 866.00 675.50 390.00 81.00 0.00 0.00 2617.00
1936 0.00 0.00 b 0.00 52.00 418.00 494.00 960.50 779.50 477.93 a 96.50 0.00 0.00 3278.43
1937 0.00 0.00 0.00 42.00 310.50 466.00 755.00 803.00 393.00 97.00 0.50 0.00 2867.00
1938 0.00 0.00 10.50 106.50 206.15 a 507.50 732.50 742.00 442.50 269.50 26.00 0.00 3043.15
1939 0.00 0.00 42.50 79.50 463.50 564.50 741.00 570.50 530.50 100.50 3.00 0.50 3096.00
1940 0.00 0.00 0.00 a 26.00 233.00 545.00 776.50 568.50 480.50 211.50 1.00 0.00 2842.00
1941 0.00 0.00 0.00 111.00 456.50 523.00 726.50 699.50 433.50 136.50 13.50 0.00 3100.00
1942 0.00 0.00 2.50 165.50 222.00 498.50 663.00 641.50 299.50 153.00 3.00 0.00 2648.50
1943 0.00 0.00 30.50 44.00 186.50 549.00 725.00 647.50 236.00 126.00 0.00 0.00 2544.50
1944 2.00 0.00 0.00 16.50 414.50 579.00 634.00 595.00 340.00 101.50 21.00 0.00 2703.50
1945 0.00 0.00 35.50 44.00 152.00 343.50 627.00 610.00 331.50 101.00 0.00 0.00 2244.50
1946 0.00 0.00 40.00 135.00 156.00 509.50 675.00 526.00 292.50 106.50 0.00 0.00 2440.50
1947 0.00 0.00 0.00 35.50 139.00 373.50 641.50 822.50 436.50 282.50 0.00 0.00 2731.00
1948 0.00 z 0.00 z 0.00 z 109.50 239.50 466.00 708.00 670.78 b 354.50 g 75.00 7.50 0.00 a 2276.28
1949 0.00 0.00 0.00 85.50 336.50 600.00 765.18 a 699.29 e 218.89 c 161.89 d 14.00 0.00 a 2881.25
1950 0.00 0.00 0.00 2.14 b 212.00 523.00 0.00 z 244.50 n 330.00 176.00 4.50 0.00 1247.64
1951 0.00 0.00 0.00 a 52.76 a 320.50 361.03 a 609.50 557.50 224.00 142.17 b 1.50 0.00 2268.97
1952 0.00 0.00 0.00 120.50 232.00 616.50 678.00 535.50 389.50 39.00 12.00 0.00 2623.00
1953 0.00 0.00 6.50 21.00 269.00 472.50 f 0.00 z 651.53 b 342.50 237.00 24.50 0.00 1552.03
1954 0.00 0.00 0.00 96.50 0.00 z 0.00 z 720.00 0.00 z 354.11 b 64.58 a 4.00 h 0.00 1235.19
1955 0.00 b 0.00 a 0.50 143.00 382.85 a 0.00 z 508.50 m 828.00 442.00 127.50 f 0.00 0.00 1796.35
1956 0.00 0.00 0.00 7.00 332.50 742.00 633.50 652.00 350.00 255.50 2.88 d 0.00 2975.38
1957 0.00 0.00 0.00 a 131.00 248.50 501.00 843.72 a 630.00 284.50 86.00 0.00 0.00 2724.72
1958 0.00 0.00 0.00 54.00 392.00 429.00 623.00 744.00 449.00 187.00 4.50 0.00 b 2882.50
1959 0.00 0.00 a 0.00 58.00 332.73 a 632.00 702.00 791.00 397.00 28.00 0.00 0.00 2940.73
1960 0.00 0.00 0.00 97.00 279.50 492.00 690.50 691.00 384.50 133.00 0.50 0.00 2768.00
1961 0.00 0.00 4.00 27.00 208.73 a 570.00 655.50 710.00 335.50 140.00 0.00 0.00 2650.73
1962 0.00 0.00 0.00 92.00 420.50 529.50 662.50 671.50 302.00 208.00 0.00 3.50 2889.50
1963 0.00 0.00 49.50 107.50 317.50 706.00 750.00 674.00 462.50 340.00 1.00 0.00 3408.00
1964 0.00 0.00 0.00 78.00 428.00 596.00 802.50 559.00 323.00 103.50 28.00 0.00 2918.00
1965 0.00 a 0.00 0.00 49.00 380.50 559.00 702.00 610.00 157.50 133.50 8.50 0.00 2600.00
1966 0.00 0.00 22.00 27.00 246.50 525.50 798.00 549.50 326.00 96.50 0.00 0.00 2591.00
1967 0.00 a 0.00 27.50 60.00 183.50 471.00 628.00 544.00 307.00 100.75 c 0.00 a 0.00 2321.75
1968 0.00 0.00 z 30.00 72.50 146.50 580.00 663.00 651.50 337.50 124.00 3.50 0.00 2608.50
1969 0.00 0.00 0.00 60.00 313.10 a 371.50 731.00 651.00 332.00 85.00 0.50 0.00 2544.10
1970 0.00 0.00 0.00 90.00 365.00 628.00 728.00 659.00 381.50 99.00 0.00 0.00 2950.50
1971 0.00 0.00 0.00 61.00 h 216.43 d 630.00 d 563.00 577.24 b 288.00 e 125.03 a 0.00 b 0.00 a 2399.70
1972 0.00 b 0.00 c 0.00 a 0.00 z 351.33 d 499.14 a 560.77 c 564.64 c 259.50 57.87 a 3.00 0.00 z 2296.25
1973 0.00 a 0.00 4.00 52.50 194.00 558.50 646.00 679.00 282.00 161.50 2.00 0.00 2579.50
1974 0.00 0.00 2.50 72.00 176.50 476.50 829.00 510.00 258.00 67.50 4.00 0.00 2396.00
1975 0.00 0.00 b 0.00 4.50 328.00 500.00 764.00 651.50 220.00 120.50 24.00 0.00 2612.50
1976 0.00 0.00 a 8.00 102.50 244.00 564.00 727.00 657.00 334.50 96.00 0.00 0.00 2733.00
1977 0.00 0.00 9.50 188.50 501.50 590.50 731.00 395.00 g 364.00 18.50 6.00 0.00 2409.50
1978 0.00 0.00 7.50 10.00 284.00 528.00 666.50 637.00 497.50 74.50 17.00 0.00 2722.00
1979 0.00 0.00 0.00 37.00 199.50 495.50 671.50 546.50 388.97 a 58.50 1.00 0.00 2398.47
1980 0.00 a 0.00 0.00 104.50 359.00 567.00 749.00 602.50 328.00 84.22 a 4.00 0.00 i 2798.22
1981 0.00 a 1.08 b 9.00 105.00 230.50 520.00 674.50 578.00 325.50 37.00 5.77 d 0.00 2486.35
1982 0.00 0.00 0.00 44.50 299.50 379.00 709.50 580.50 310.50 69.50 0.00 0.00 2393.00
1983 0.00 0.00 5.50 13.00 134.00 492.00 815.00 817.50 403.00 68.50 8.28 a 0.00 2756.78
1984 0.00 0.00 0.00 18.00 207.50 561.50 666.00 705.50 269.00 138.50 0.00 0.00 2566.00
1985 0.00 0.00 4.00 152.00 351.50 427.00 658.00 484.50 308.00 27.00 0.00 0.00 2412.00
1986 0.00 0.00 14.00 65.50 277.00 591.00 726.00 473.00 311.50 67.00 0.00 0.00 2525.00
1987 0.00 0.00 3.50 145.50 426.00 648.00 746.00 526.50 335.00 27.00 10.00 0.00 2867.50
1988 0.00 0.00 0.00 32.50 442.00 696.50 717.50 707.50 356.00 34.50 0.00 0.00 2986.50
1989 0.00 0.00 17.00 92.00 279.50 489.50 740.00 623.50 309.50 136.50 0.00 0.00 2687.50
1990 0.00 0.00 7.50 120.00 161.50 584.50 631.00 596.00 436.50 64.50 12.50 0.00 2614.00
1991 0.00 0.00 0.00 88.00 385.50 643.00 663.00 609.00 325.50 75.50 0.00 0.00 2789.50
1992 0.00 0.00 0.00 28.00 278.00 466.00 443.50 435.50 267.50 120.00 0.00 0.00 2038.50
1993 0.00 0.00 0.00 14.50 194.00 409.00 611.00 608.00 179.50 74.50 0.00 0.00 2090.50
1994 0.00 0.00 1.00 75.50 356.50 611.00 615.50 571.00 413.00 103.50 1.00 0.00 2748.00
1995 0.00 0.00 0.50 2.00 155.00 552.50 682.00 710.00 275.00 76.00 0.00 0.00 2453.00
1996 0.00 0.00 0.00 13.50 155.50 546.00 576.00 552.50 266.50 116.50 0.00 0.00 2226.50
1997 0.00 0.00 2.50 18.50 121.00 586.50 674.50 556.50 399.50 193.00 0.00 0.00 2552.00
1998 0.00 0.00 13.00 67.00 453.50 461.50 688.50 659.50 493.00 85.00 0.00 4.00 2925.00
1999 0.00 0.00 7.00 36.00 299.00 521.00 770.00 609.50 318.50 75.50 34.50 0.00 2671.00
2000 0.00 0.00 27.50 59.50 339.00 483.00 667.50 629.00 337.50 128.00 8.00 0.00 2679.00
2001 0.00 0.00 0.00 83.50 283.50 530.00 746.50 669.00 310.50 77.50 54.00 0.00 2754.50
2002 0.00 0.00 0.00 87.50 188.00 615.00 778.00 533.00 382.50 42.00 0.00 0.00 2626.00
2003 0.00 0.00 7.50 87.50 173.50 477.00 662.50 673.00 305.00 151.00 0.00 0.00 2537.00
2004 0.00 0.00 11.50 60.00 226.50 422.00 581.50 435.00 434.50 76.50 2.00 0.00 2249.50
2005 0.00 0.00 8.50 102.50 229.50 597.00 709.50 578.00 469.50 142.50 9.00 0.00 2846.00
2006 0.00 0.00 0.00 146.50 366.50 665.00 895.50 740.50 306.50 136.00 19.00 0.00 3275.50
2007 0.00 0.00 25.00 120.50 479.50 686.50 836.50 742.00 464.50 201.00 0.00 0.00 3555.50
2008 0.00 0.00 b 0.00 37.00 263.00 641.00 824.50 724.50 445.50 116.00 45.50 0.00 3097.00
2009 0.00 0.00 7.50 50.50 298.63 a 580.00 635.00 661.00 480.50 12.50 14.00 0.00 2739.63
2010 0.00 0.00 12.92 a 149.50 360.50 669.50 840.00 866.00 394.00 203.00 15.00 0.00 b 3510.42
2011 0.00 0.00 0.00 29.50 293.00 616.50 978.00 762.50 406.11 c 218.50 5.50 0.00 3309.61
2012 0.00 0.00 151.00 145.50 478.00 719.50 997.50 738.00 438.50 97.00 8.50 0.00 3773.50
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 0.02 0.02 7.98 71.65 288.43 538.64 712.90 637.63 354.79 118.89 6.51 0.09 2739.51
S.D. 0.21 0.12 18.70 47.27 100.46 93.47 93.41 89.52 81.86 62.92 10.20 0.56 333.00
SKEW 9.38 7.59 5.38 0.82 0.48 0.08 0.58 0.16 0.28 0.94 2.32 6.45 0.59
MAX 2.00 1.08 151.00 242.00 591.07 777.93 997.50 866.00 601.11 340.00 54.00 4.00 3773.50
MIN 0.00 0.00 0.00 2.00 121.00 343.50 443.50 435.00 157.50 12.50 0.00 0.00 2038.50
NO YRS 91 90 90 89 90 89 89 88 92 90 92 90 77