PLYMOUTH, WISCONSIN

Monthly Total Cooling Degree Days

(476678)

Base Temperature = 65 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 0.00 0.00 0.00 193.00 250.00 159.50 6.00 8.00 0.00 0.00 616.50
1911 0.00 0.00 0.00 0.00 59.50 138.50 229.50 128.13 a 37.00 0.00 0.00 0.00 592.63
1912 0.00 0.00 0.00 0.00 14.50 47.50 160.50 60.00 86.50 3.00 0.00 0.00 372.00
1913 0.00 0.00 0.00 3.50 9.50 144.50 152.00 148.80 a 63.00 0.53 b 0.00 0.00 521.83
1914 0.00 0.00 0.00 0.00 35.50 78.00 206.00 153.50 49.50 4.50 0.00 0.00 527.00
1915 0.00 0.00 0.00 32.00 3.10 a 17.59 a 78.03 b 60.00 40.50 0.00 0.00 0.00 231.22
1916 0.00 0.00 0.00 0.00 6.20 a 10.50 345.50 207.50 45.52 a 2.50 0.00 0.00 617.72
1917 0.00 0.00 0.00 0.00 18.60 a 18.10 a 192.00 75.00 5.50 0.00 0.00 0.00 a 309.20
1918 0.00 0.00 0.00 0.00 24.05 b 35.17 a 142.50 186.53 b 7.80 e 13.50 0.00 0.00 409.56
1919 0.00 0.00 0.00 0.00 21.00 176.50 254.72 a 122.97 a 64.82 b 4.50 0.00 0.00 a 644.50
1920 0.00 0.00 a 0.00 0.00 3.50 121.03 a 96.62 a 95.00 80.17 a 19.00 0.00 0.00 415.32
1921 0.00 0.00 0.00 0.50 67.50 211.00 398.35 a 155.00 a 76.00 0.00 0.00 0.00 908.35
1922 0.00 0.00 0.00 0.00 14.00 92.59 a 107.98 a 161.64 c 93.50 30.00 0.00 0.00 499.71
1923 0.00 0.00 0.00 1.50 0.00 a 173.57 b 192.72 a 79.71 c 39.50 0.00 0.00 0.00 487.00
1924 0.00 0.00 0.00 0.00 a 0.00 28.50 115.50 90.93 a 8.50 0.00 a 0.00 0.00 243.43
1925 0.00 0.00 f 0.00 a 5.00 13.00 123.50 130.50 138.50 103.00 0.00 0.00 0.00 c 513.50
1926 0.00 0.00 a 0.00 a 2.50 23.00 24.50 136.50 101.50 21.00 1.00 0.00 0.00 310.00
1927 0.00 0.00 0.00 1.03 a 4.13 a 56.50 120.50 40.50 120.52 a 3.00 0.00 0.00 346.19
1928 0.00 0.00 0.00 0.00 4.00 11.50 168.36 b 127.21 b 0.00 z 0.00 z 0.00 0.00 311.07
1929 0.00 a 0.00 0.00 e 9.00 31.53 b 37.76 a 180.00 0.00 z 65.89 b 0.00 0.00 a 0.00 324.19
1930 0.00 0.00 z 0.00 z 0.00 28.42 a 0.00 z 0.00 z 206.15 a 62.50 0.50 0.00 0.00 d 297.57
1931 0.00 z 0.00 z 0.00 z 0.00 z 9.09 b 171.50 290.50 172.50 160.18 b 9.09 b 0.00 a 0.00 812.85
1932 0.00 0.00 0.00 0.00 19.00 59.50 g 240.77 a 198.50 34.82 b 4.00 0.00 0.00 497.09
1933 0.00 0.00 0.00 0.00 15.00 240.00 b 188.58 a 94.60 b 109.50 0.00 0.00 a 0.00 647.69
1934 0.00 0.00 0.00 b 1.50 61.00 155.00 196.00 137.50 19.50 3.50 0.00 0.00 574.00
1935 0.00 0.00 0.00 0.00 0.00 25.00 306.90 a 182.50 42.50 0.00 0.00 0.00 556.90
1936 0.00 0.00 0.00 0.00 68.00 54.83 a 338.00 225.00 76.55 a 0.00 0.00 0.00 762.38
1937 0.00 0.00 0.00 0.00 21.70 a 48.10 a 250.21 c 324.43 b 86.38 a 3.00 0.00 0.00 733.83
1938 0.00 0.00 0.00 3.50 8.00 55.50 161.20 a 225.50 23.28 a 12.50 0.00 0.00 489.48
1939 0.00 b 0.00 0.00 8.50 41.50 104.50 221.00 173.00 117.50 2.50 0.00 a 0.00 668.50
1940 0.00 0.00 0.00 0.00 a 2.58 a 70.00 230.00 128.00 62.07 a 1.50 0.00 0.00 494.15
1941 0.00 0.00 0.00 a 9.50 38.50 139.00 229.50 184.50 78.10 a 0.00 0.00 0.00 679.10
1942 0.00 0.00 0.00 1.00 1.50 65.00 170.00 119.50 54.50 0.00 0.00 0.00 411.50
1943 0.00 0.00 0.00 0.00 4.50 160.50 206.50 172.00 21.50 0.50 0.00 0.00 565.50
1944 0.00 0.00 0.00 0.00 42.00 132.00 140.50 199.00 34.00 0.00 0.00 0.00 547.50
1945 0.00 0.00 0.00 3.00 0.00 55.50 109.00 151.50 62.00 1.00 0.00 0.00 382.00
1946 0.00 0.00 0.00 3.00 0.00 99.50 155.50 115.00 31.00 9.50 0.00 0.00 413.50
1947 0.00 0.00 0.00 0.00 1.50 41.50 162.00 314.00 125.50 38.75 a 0.00 0.00 683.25
1948 0.00 0.00 0.00 0.00 1.00 74.50 186.50 185.50 103.50 0.00 0.00 0.00 551.00
1949 0.00 0.00 a 0.00 0.00 27.50 148.50 235.50 185.00 8.50 3.50 0.00 0.00 608.50
1950 0.00 0.00 0.00 0.00 0.00 a 88.00 105.50 63.50 4.50 9.00 0.00 0.00 270.50
1951 0.00 0.00 0.00 1.50 16.50 16.50 136.50 68.50 20.00 3.50 0.00 0.00 263.00
1952 0.00 0.00 0.00 2.50 13.50 137.00 234.00 114.50 65.00 0.00 0.00 0.00 566.50
1953 0.00 0.00 0.00 0.00 23.00 100.50 196.00 200.50 71.00 24.00 0.00 0.00 615.00
1954 0.00 0.00 0.00 0.00 2.00 0.00 z 0.00 z 0.00 z 2.00 w 0.00 0.00 0.00 2.00
1955 0.00 0.00 0.00 0.50 20.00 67.50 312.00 302.00 65.50 2.50 0.00 0.00 770.00
1956 0.00 0.00 0.00 0.00 15.50 a 148.00 94.00 137.00 13.00 5.50 0.00 0.00 413.00
1957 0.00 0.00 0.00 1.50 5.00 85.50 198.00 147.77 a 32.50 0.00 0.00 0.00 470.27
1958 0.00 0.00 0.00 1.00 18.00 27.00 126.00 197.50 46.00 2.00 0.00 0.00 417.50
1959 0.00 0.00 0.00 0.00 a 43.92 a 126.50 159.00 259.50 91.00 0.00 0.00 0.00 679.92
1960 0.00 0.00 0.00 6.21 a 2.00 30.50 121.00 142.00 86.00 0.00 0.00 a 0.00 387.71
1961 0.00 0.00 0.00 0.00 1.50 98.50 158.50 161.00 112.00 0.00 0.00 0.00 531.50
1962 0.00 0.00 0.00 12.50 63.50 69.50 77.50 135.50 15.50 5.50 0.00 0.00 379.50
1963 0.00 0.00 0.00 0.00 10.00 111.00 208.00 106.00 23.50 13.50 0.00 0.00 472.00
1964 0.00 0.00 0.00 2.50 37.50 146.00 209.00 115.50 38.00 0.00 0.00 a 0.00 548.50
1965 0.00 i 0.00 0.00 0.00 21.50 44.50 i 122.50 105.00 26.50 6.00 0.00 0.00 281.50
1966 0.00 0.00 0.00 0.00 3.50 170.50 306.50 143.50 31.00 6.50 0.00 0.00 661.50
1967 0.00 0.00 0.00 0.00 4.00 95.50 150.00 81.00 32.00 7.50 0.00 0.00 370.00
1968 0.00 0.00 0.00 0.00 3.50 112.00 186.50 206.00 29.50 24.00 0.00 0.00 561.50
1969 0.00 0.00 0.00 0.00 31.00 36.00 157.00 253.50 55.50 6.00 0.00 0.00 539.00
1970 0.00 0.00 0.00 7.50 34.00 141.00 282.00 198.50 59.50 6.00 0.00 0.00 728.50
1971 0.00 0.00 0.00 0.00 4.50 185.50 126.50 107.50 91.00 18.00 0.00 0.00 533.00
1972 0.00 0.00 0.00 0.00 20.00 43.00 175.00 148.50 14.00 0.00 0.00 0.00 400.50
1973 0.00 0.00 0.00 0.00 0.00 105.50 201.50 206.50 54.50 1.50 0.00 0.00 569.50
1974 0.00 0.00 0.00 8.50 6.00 47.00 233.50 113.50 26.00 0.00 0.00 0.00 434.50
1975 0.00 0.00 0.00 0.00 63.50 91.00 258.50 187.00 4.00 5.68 a 0.00 0.00 609.68
1976 0.00 0.00 0.00 8.00 2.00 151.00 221.00 151.50 62.00 5.50 0.00 0.00 601.00
1977 0.00 0.00 0.00 14.00 86.00 95.00 264.50 99.50 19.00 0.00 0.00 0.00 578.00
1978 0.00 0.00 0.00 0.00 47.50 82.50 121.50 163.50 120.00 0.00 a 0.00 0.00 535.00
1979 0.00 a 0.00 0.00 0.00 15.50 66.72 a 173.50 110.00 53.50 5.50 0.00 0.00 424.72
1980 0.00 0.00 0.00 6.50 29.50 88.50 229.00 209.50 37.50 0.00 0.00 0.00 600.50
1981 0.00 0.00 0.00 0.00 11.00 102.00 164.50 157.50 27.50 0.00 0.00 z 0.00 462.50
1982 0.00 0.00 0.00 0.00 30.50 20.50 215.00 119.00 49.00 7.00 0.00 0.00 441.00
1983 0.00 0.00 0.00 0.00 0.00 120.50 327.00 246.00 94.00 10.50 0.00 0.00 a 798.00
1984 0.00 0.00 0.00 0.00 7.50 104.50 174.50 232.00 42.00 0.00 0.00 0.00 560.50
1985 0.00 0.00 0.00 16.00 32.00 49.00 190.00 96.00 93.00 0.00 0.00 0.00 476.00
1986 0.00 0.00 2.00 2.50 32.50 80.50 232.50 90.50 47.50 0.00 0.00 0.00 488.00
1987 0.00 0.00 0.00 4.50 71.50 209.50 287.50 154.00 33.50 0.00 0.00 0.00 760.50
1988 0.00 0.00 0.00 0.00 47.50 251.00 317.50 310.50 34.66 a 2.50 0.00 0.00 z 963.66
1989 0.00 0.00 0.00 0.00 8.50 60.50 193.50 162.00 39.00 1.00 0.00 0.00 464.50
1990 0.00 0.00 0.00 33.00 0.00 114.50 185.00 160.00 96.00 2.50 0.00 0.00 591.00
1991 0.00 0.00 0.00 12.50 113.50 166.00 213.50 184.50 0.00 z 0.50 0.00 0.00 690.50
1992 0.00 0.00 z 0.00 z 0.00 z 0.00 z 47.50 51.00 76.50 19.50 0.50 0.00 0.00 195.00
1993 0.00 0.00 0.00 0.00 3.50 31.50 153.50 182.50 12.50 0.00 0.00 0.00 383.50
1994 0.00 0.00 0.00 0.00 32.50 140.50 145.00 81.50 62.00 0.00 0.00 0.00 461.50
1995 0.00 0.00 0.00 0.00 3.00 150.50 204.50 274.50 23.50 9.50 0.00 0.00 665.50
1996 0.00 0.00 0.00 0.00 20.00 88.00 106.00 126.00 55.00 1.00 0.00 0.00 396.00
1997 0.00 0.00 0.00 0.00 0.00 90.00 140.50 62.50 19.00 12.50 0.00 0.00 324.50
1998 0.00 0.00 2.00 0.00 53.50 123.50 209.50 169.00 81.00 0.00 0.00 0.00 a 638.50
1999 0.00 0.00 0.00 0.00 27.50 129.50 281.00 86.00 35.50 0.00 0.00 0.00 559.50
2000 0.00 0.00 1.00 0.00 37.50 87.50 117.50 124.50 57.50 5.00 0.00 0.00 430.50
2001 0.00 0.00 0.00 0.00 21.00 107.07 a 229.50 218.00 26.00 0.00 0.00 0.00 601.57
2002 0.00 0.00 0.00 22.00 14.00 142.50 284.50 162.00 92.50 9.50 0.00 0.00 727.00
2003 0.00 0.00 0.00 9.00 1.50 53.00 174.00 191.50 46.50 0.50 0.00 0.00 476.00
2004 0.00 0.00 0.00 2.00 6.50 54.00 127.50 78.00 70.50 2.00 0.00 0.00 340.50
2005 0.00 0.00 0.00 8.50 6.50 257.50 389.50 211.00 110.50 19.50 0.00 0.00 1003.00
2006 0.00 0.00 0.00 0.00 27.00 56.00 262.50 176.00 22.50 0.00 0.00 0.00 544.00
2007 0.00 0.00 4.50 3.00 38.50 118.50 167.00 166.50 81.50 30.00 0.00 0.00 609.50
2008 0.00 0.00 a 0.00 0.00 0.50 83.50 173.60 a 108.50 28.00 2.50 0.00 0.00 396.60
2009 0.00 0.00 0.00 3.50 10.00 93.00 68.00 115.50 22.50 0.00 0.00 0.00 312.50
2010 0.00 0.00 0.00 0.50 47.00 88.00 242.50 222.00 35.50 0.00 0.00 0.00 635.50
2011 0.00 0.00 0.00 0.00 7.50 64.50 283.50 164.50 41.00 0.00 0.00 0.00 561.00
2012 0.00 0.00 5.50 0.00 29.50 165.00 348.50 146.00 50.00 0.00 t 0.00 z 0.00 z 744.50
Period of Record Statistics
MEAN 0.00 0.00 0.15 2.72 20.87 98.91 196.83 155.20 52.75 4.49 0.00 0.00 525.65
S.D. 0.00 0.00 0.76 5.86 21.84 55.77 71.65 59.43 33.12 7.33 0.00 0.00 145.77
SKEW 0.00 0.00 5.73 3.30 1.51 0.60 0.53 0.59 0.71 2.45 0.00 0.00 0.41
MAX 0.00 0.00 5.50 33.00 113.50 257.50 398.35 324.43 160.18 38.75 0.00 0.00 1003.00
MIN 0.00 0.00 0.00 0.00 0.00 10.50 51.00 40.50 4.00 0.00 0.00 0.00 231.22
NO YRS 100 98 100 101 102 99 101 101 100 101 101 101 89