PLYMOUTH, WISCONSIN

Monthly Total Growing Degree Days

(476678)

Base Temperature = 40 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201210
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
1910 0.00 z 0.00 z 185.00 219.00 323.00 817.00 1022.00 922.50 582.50 415.50 3.50 0.00 4490.00
1911 0.00 0.50 41.50 152.00 629.00 857.00 988.00 860.25 a 619.50 270.00 21.00 4.00 4442.75
1912 0.00 0.00 0.00 183.50 480.00 681.00 894.00 755.00 632.00 331.00 60.00 2.00 4018.50
1913 0.00 2.50 33.50 206.50 422.50 785.50 904.00 900.55 a 599.50 315.34 b 88.50 16.00 4274.40
1914 0.00 0.00 14.00 156.50 540.00 704.50 975.00 883.50 632.00 464.50 85.00 8.00 4463.00
1915 0.00 0.00 2.00 389.00 316.20 a 575.17 a 803.33 b 713.00 640.00 340.00 81.00 0.00 3859.70
1916 0.00 0.00 13.50 150.50 442.78 a 585.50 1119.50 958.50 579.83 a 263.50 61.00 7.00 4181.61
1917 0.00 0.00 15.50 83.00 324.47 a 597.93 a 931.50 793.00 544.00 102.00 73.50 0.00 a 3464.90
1918 0.00 0.00 88.00 93.50 557.47 b 692.07 a 877.50 952.98 b 444.60 e 400.50 91.50 10.00 4208.12
1919 0.00 0.00 33.50 142.50 416.00 893.50 1029.72 a 877.30 a 704.46 b 296.00 18.00 0.00 a 4410.98
1920 0.00 0.00 a 68.50 67.00 430.50 774.83 a 826.15 a 823.00 727.76 a 524.00 30.00 11.50 4283.24
1921 3.50 1.00 66.00 321.00 569.00 901.00 1172.32 a 911.40 a 764.00 306.00 11.50 0.50 5027.22
1922 0.00 0.00 26.00 147.50 638.00 791.38 a 865.42 a 910.62 c 694.50 345.00 99.50 1.50 4519.42
1923 0.00 0.00 7.50 176.00 411.78 a 877.50 b 961.00 a 787.18 c 600.00 269.00 53.00 9.50 4152.46
1924 0.00 0.00 2.00 103.97 a 277.50 628.00 828.50 814.78 a 465.00 430.90 a 76.00 0.00 3626.65
1925 0.00 5.00 f 42.37 a 261.50 360.50 783.50 884.50 896.00 730.00 119.50 39.50 0.00 c 4117.37
1926 0.00 0.00 a 4.13 a 122.50 466.50 602.00 893.00 853.50 553.00 240.00 18.50 0.00 3753.13
1927 0.00 1.50 42.00 147.41 a 368.38 a 627.00 860.00 747.00 694.66 a 368.50 42.00 0.00 3898.45
1928 0.50 0.00 43.50 84.50 470.00 577.00 937.48 b 865.86 b 0.00 z 0.00 z 45.00 0.50 3024.34
1929 0.00 a 0.00 45.90 e 192.00 353.83 b 612.93 a 925.00 0.00 z 626.25 b 283.50 18.10 a 0.00 3057.52
1930 0.00 0.00 z 0.00 z 168.00 481.53 a 0.00 z 0.00 z 967.72 a 676.50 278.50 150.00 0.57 d 2722.82
1931 0.00 z 0.00 z 0.00 z 0.00 z 399.26 b 847.00 1064.50 915.00 826.07 b 424.91 b 161.38 a 9.50 4647.62
1932 3.50 12.00 6.00 110.50 497.00 613.50 g 993.55 a 961.00 642.86 b 256.50 31.50 12.00 3526.41
1933 0.50 1.00 0.00 116.50 484.50 957.32 b 956.35 a 845.55 b 765.00 266.00 36.72 a 3.00 4432.45
1934 4.00 0.00 2.67 b 146.00 640.00 865.00 947.50 828.50 573.50 374.50 97.00 0.00 4478.67
1935 0.00 0.00 28.50 115.50 327.50 628.50 1081.90 a 913.50 609.50 289.00 33.00 0.00 4026.90
1936 0.00 0.00 25.00 108.00 635.00 691.03 a 1108.50 992.00 693.10 a 246.50 35.00 21.00 4555.14
1937 0.00 0.00 2.50 97.50 486.70 a 695.69 a 1013.04 c 1095.16 b 637.24 a 216.00 47.00 0.00 4290.82
1938 0.00 0.00 123.00 245.00 456.50 732.50 927.93 a 991.50 602.59 a 444.00 118.00 0.00 4641.02
1939 3.74 b 0.00 61.50 160.00 568.00 798.50 981.50 945.00 719.50 331.50 49.14 a 14.50 4632.88
1940 0.00 0.00 8.00 92.07 a 422.12 a 734.50 973.50 839.50 650.17 a 371.50 43.00 0.00 4134.36
1941 0.00 0.00 1.03 a 305.50 597.00 799.50 994.00 933.50 701.38 a 362.50 91.50 16.50 4802.41
1942 0.00 0.00 7.00 315.50 428.50 717.50 923.50 856.50 549.00 341.00 60.00 0.00 4198.50
1943 0.00 1.00 54.50 131.00 437.00 819.00 977.00 926.00 524.00 306.50 11.50 3.00 4190.50
1944 23.50 1.00 6.00 94.50 587.00 820.00 905.00 948.00 639.50 308.50 122.50 0.00 4455.50
1945 0.00 0.00 202.50 201.00 333.00 604.50 846.00 896.50 594.50 252.50 66.00 0.00 3996.50
1946 0.00 0.00 133.50 236.50 391.00 709.00 919.00 844.00 617.00 433.50 60.50 30.00 4374.00
1947 1.50 0.00 9.00 112.00 328.50 623.50 913.50 1082.00 685.00 597.78 a 45.50 0.00 4398.28
1948 0.00 0.00 31.50 248.00 398.00 731.00 951.50 953.50 753.00 293.00 87.00 5.50 4452.00
1949 0.00 0.00 a 24.50 195.50 499.00 841.50 1008.50 940.50 518.00 415.50 74.50 3.50 4521.00
1950 0.50 0.00 3.50 57.00 419.02 a 759.00 840.00 737.50 591.00 436.50 57.00 0.00 3901.02
1951 0.00 0.00 2.50 111.00 570.00 655.50 895.00 782.00 546.50 312.00 21.00 17.00 3912.50
1952 0.00 0.00 15.00 300.50 480.50 829.00 1002.50 867.50 665.50 211.00 85.50 2.50 4459.50
1953 3.00 0.00 30.00 92.50 494.00 805.50 957.50 973.50 674.00 493.00 167.50 5.00 4695.50
1954 0.00 8.00 9.50 267.00 369.50 0.00 z 0.00 z 0.00 z 149.50 w 349.50 75.50 0.00 1079.00
1955 0.00 0.00 23.00 329.50 575.00 748.50 1087.00 1066.00 674.50 377.00 8.00 1.00 4889.50
1956 0.00 0.00 0.00 105.50 445.88 a 829.50 840.00 885.00 533.00 456.50 107.50 4.50 4207.38
1957 0.00 5.50 5.50 266.00 423.50 765.00 966.00 908.82 a 602.00 279.00 45.00 2.50 4268.82
1958 0.00 0.00 0.00 200.50 488.50 618.50 886.50 950.50 652.50 395.00 113.50 0.00 4305.50
1959 0.00 0.00 0.00 173.28 a 611.73 a 828.50 915.50 1031.50 696.00 203.00 11.50 2.00 4473.01
1960 0.00 0.00 6.00 240.52 a 434.50 682.00 861.50 901.50 680.50 326.00 70.86 a 11.00 4214.38
1961 3.00 0.50 28.00 83.00 408.00 780.00 919.50 925.00 713.50 346.00 56.00 7.50 4270.00
1962 0.00 0.00 14.50 190.00 599.00 718.50 818.00 887.00 535.00 371.50 14.50 28.50 4176.50
1963 0.00 0.00 67.00 216.00 408.00 794.00 969.00 840.50 600.00 581.50 104.50 0.00 4580.50
1964 1.00 0.00 11.50 197.00 627.50 784.00 966.00 824.00 580.50 273.00 189.31 a 0.00 4453.81
1965 0.00 i 0.00 0.00 89.00 564.50 501.00 i 857.50 823.50 585.50 326.00 72.50 6.00 3324.50
1966 0.00 0.00 21.00 79.00 318.50 828.00 1079.00 891.00 597.00 321.00 64.00 2.00 4200.50
1967 0.00 0.00 68.00 179.00 338.50 802.00 875.00 773.50 572.00 277.50 22.00 0.00 3907.50
1968 0.00 0.00 126.00 219.50 415.00 783.50 933.50 916.00 660.50 362.00 37.50 3.50 4457.00
1969 0.00 0.00 13.50 199.50 505.00 575.00 898.00 1025.00 647.00 263.00 26.00 0.00 4152.00
1970 0.00 0.00 1.00 245.50 540.50 832.50 1048.00 960.00 646.50 359.50 21.00 9.50 4664.00
1971 0.00 0.00 0.00 171.00 403.00 875.50 883.50 830.00 704.00 492.50 56.50 0.00 4416.00
1972 0.00 0.00 3.00 113.50 576.00 668.50 910.50 879.50 570.50 204.00 27.00 0.00 3952.50
1973 14.50 0.00 55.50 131.00 391.00 835.00 965.00 959.00 617.50 416.50 26.00 4.50 4415.50
1974 0.00 0.00 32.50 217.00 365.50 688.00 1004.50 866.50 533.00 329.50 82.00 0.00 4118.50
1975 0.00 0.00 1.00 85.50 637.50 783.00 1009.50 946.50 507.00 380.78 a 214.00 16.00 4580.78
1976 0.00 10.00 94.50 232.50 410.00 873.00 993.50 886.00 619.00 220.50 10.50 0.00 4349.50
1977 0.00 1.50 90.50 372.50 719.50 719.50 1034.50 814.50 632.00 264.50 115.50 1.50 4766.00
1978 0.00 0.00 23.50 98.00 531.00 741.50 859.50 929.00 770.50 284.17 a 105.00 0.00 4342.17
1979 0.00 a 0.00 11.00 155.00 441.00 719.48 a 930.50 848.00 712.50 264.50 58.00 8.00 4147.98
1980 0.00 0.00 15.00 220.50 578.50 739.00 998.50 977.00 617.50 213.50 47.50 4.00 4411.00
1981 0.00 32.50 69.50 260.50 469.50 811.00 909.50 911.00 581.50 214.50 0.00 z 0.00 4259.50
1982 0.00 0.00 20.50 144.00 654.00 613.00 984.00 836.00 612.00 382.00 64.00 51.00 4360.50
1983 0.00 9.00 45.00 113.50 312.00 804.00 1095.00 1021.00 693.50 344.00 83.50 0.00 a 4520.50
1984 0.00 18.50 0.00 146.00 429.50 824.00 939.50 993.00 615.00 366.00 60.00 13.50 4405.00
1985 0.00 0.00 42.00 340.50 635.50 702.50 955.50 841.00 669.00 303.50 31.00 0.00 4520.50
1986 0.00 0.00 109.50 267.50 566.00 723.00 986.00 827.00 653.50 329.50 28.50 0.00 4490.50
1987 0.00 0.50 73.00 334.50 635.00 928.00 1047.50 898.50 680.50 187.00 100.00 1.00 4885.50
1988 2.00 0.00 34.00 190.00 624.00 951.00 1088.00 1070.00 666.72 a 193.00 41.50 0.00 z 4860.22
1989 5.00 0.00 46.00 161.00 467.00 743.00 963.50 919.00 621.50 371.00 30.00 0.00 4327.00
1990 0.00 1.50 84.50 298.00 398.50 813.50 940.50 917.50 724.00 264.50 131.00 0.00 4573.50
1991 0.00 6.00 40.00 271.50 669.50 898.50 977.00 953.00 0.00 z 321.00 31.50 0.00 4168.00
1992 0.00 0.00 z 0.00 z 0.00 z 0.00 z 651.00 762.50 759.00 535.50 240.50 21.50 0.00 2970.00
1993 0.00 0.00 20.00 95.50 467.50 654.00 916.50 943.50 471.00 214.50 21.50 2.50 3806.50
1994 0.00 7.00 20.50 181.00 479.00 802.00 889.00 800.00 686.50 332.50 79.00 4.00 4280.50
1995 0.00 0.00 68.00 73.00 436.50 855.50 964.50 1049.00 528.00 327.00 8.50 0.00 4310.00
1996 0.00 0.00 11.50 119.50 333.00 731.00 847.00 877.50 616.00 283.50 14.00 0.00 3833.00
1997 0.00 0.50 28.00 169.00 272.00 765.50 869.50 766.00 619.50 315.50 25.50 0.50 3831.50
1998 4.00 4.00 103.50 193.50 632.50 767.00 979.00 938.50 767.00 344.50 104.50 58.90 a 4896.90
1999 0.00 1.50 49.00 221.50 548.00 785.50 1054.00 824.50 595.50 271.50 134.50 17.00 4502.50
2000 0.00 29.50 128.00 157.00 536.00 756.00 865.00 872.50 599.50 403.50 69.00 0.00 4416.00
2001 0.00 0.00 1.50 250.00 532.00 739.14 a 982.50 987.50 579.00 285.50 175.50 36.50 4569.14
2002 5.00 1.50 6.50 210.00 364.00 812.00 1052.50 924.00 753.00 200.50 33.00 4.00 4366.00
2003 1.50 1.50 77.50 186.00 426.00 687.00 936.50 958.50 629.00 266.00 40.50 3.00 4213.00
2004 0.00 0.00 70.00 208.50 429.00 693.00 862.00 759.00 750.50 344.00 102.00 9.50 4227.50
2005 0.00 5.50 53.00 311.00 478.00 986.50 1160.00 974.00 774.00 342.50 95.00 0.00 5179.50
2006 0.50 0.00 20.00 263.50 489.50 729.50 1028.50 938.50 569.50 185.00 69.50 5.50 4299.50
2007 6.50 0.00 125.00 184.00 565.50 809.50 920.50 919.00 688.00 455.50 32.50 0.00 4706.00
2008 0.00 0.00 a 2.00 193.50 386.50 782.50 938.27 a 857.50 647.50 264.50 91.00 1.00 4164.27
2009 0.00 4.00 29.50 150.00 493.00 710.50 797.00 839.00 637.00 167.00 95.00 0.00 3922.00
2010 0.00 0.00 53.00 273.00 564.50 795.50 1013.00 989.50 580.00 358.50 59.50 0.00 4686.50
2011 0.00 3.50 14.50 115.00 411.50 701.00 1056.00 931.00 571.50 320.00 74.50 8.00 4206.50
2012 2.50 2.00 281.50 153.00 595.00 838.50 1123.00 897.50 592.50 69.00 t 0.00 z 0.00 z 4485.50
Period of Record Statistics
MEAN 0.90 1.78 40.00 182.87 476.31 756.61 953.38 899.00 632.55 321.61 64.32 5.37 4329.82
S.D. 2.98 5.14 47.76 75.86 102.58 91.92 83.05 79.44 73.92 89.45 43.01 9.94 306.71
SKEW 5.55 4.35 2.26 0.55 0.17 -0.03 0.31 0.06 0.05 0.43 1.05 3.19 -0.09
MAX 23.50 32.50 281.50 389.00 719.50 986.50 1172.32 1095.16 826.07 597.78 214.00 58.90 5179.50
MIN 0.00 0.00 0.00 57.00 272.00 575.00 762.50 713.00 444.60 102.00 3.50 0.00 3464.90
NO YRS 100 98 100 101 102 99 101 101 100 101 101 101 89