NORTHWOOD, IOWA

Monthly Total Cooling Degree Days

(136103)

Base Temperature = 65 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1896 0.00 z 0.00 z 0.00 z 1.50 57.00 108.50 149.00 122.40 b 7.50 0.00 0.00 0.00 445.90
1897 0.00 0.00 0.00 0.00 3.50 132.00 243.00 60.50 135.00 21.50 0.00 0.00 595.50
1898 0.00 0.00 0.00 0.00 c 17.00 118.00 189.50 145.50 55.00 8.50 0.00 0.00 d 533.50
1899 0.00 0.00 0.00 3.50 9.00 105.00 191.50 234.50 57.50 18.50 0.00 0.00 619.50
1900 0.00 0.00 0.00 0.00 74.50 121.00 174.00 319.00 73.50 16.50 0.00 0.00 778.50
1901 0.00 d 0.00 0.00 15.00 29.00 169.50 458.00 216.50 43.00 1.00 0.00 0.00 c 932.00
1902 0.00 0.00 0.00 0.00 39.50 46.50 174.00 71.50 0.00 0.00 0.00 0.00 331.50
1903 0.00 0.00 0.00 0.00 15.50 45.50 157.00 89.50 19.00 0.00 0.00 0.00 326.50
1904 0.00 0.00 0.00 z 0.00 11.50 49.00 140.50 85.00 32.50 0.00 o 0.00 0.00 318.50
1905 0.00 0.00 z 0.00 0.00 4.50 108.50 143.00 236.00 35.50 6.50 0.00 0.00 534.00
1906 0.00 b 0.00 0.00 1.00 38.00 88.50 133.50 254.89 d 54.50 g 0.00 0.00 0.00 a 515.89
1907 0.00 0.00 0.00 a 0.00 3.50 66.96 b 223.64 c 138.47 a 57.00 e 0.00 0.00 b 0.00 a 489.57
1908 0.00 z 0.00 a 0.00 b 0.00 32.00 71.38 a 215.21 e 114.18 a 150.00 0.00 0.00 d 0.00 j 582.77
1909 0.00 0.00 0.00 f 0.00 d 14.50 f 102.50 136.00 i 100.50 u 28.27 d 0.00 0.00 0.00 130.77
1910 0.00 d 0.00 0.00 16.67 c 0.00 c 220.80 e 199.50 f 165.50 20.00 4.50 0.00 0.00 427.47
1911 0.00 e 0.00 i 0.00 g 0.00 z 92.00 0.00 z 0.00 z 116.50 50.36 b 0.00 c 0.00 0.00 258.86
1912 0.00 0.00 c 0.00 0.00 23.00 57.00 211.50 106.50 73.00 0.00 e 0.00 0.00 471.00
1913 0.00 0.00 0.00 3.00 33.07 a 197.50 176.91 b 226.50 103.50 0.50 0.00 0.00 740.98
1914 0.00 a 0.00 0.00 0.50 35.00 126.11 c 276.00 195.19 d 34.00 0.50 0.00 0.00 667.30
1915 0.00 0.00 0.00 8.50 12.00 35.00 104.50 80.00 23.50 0.00 0.00 0.00 263.50
1916 0.00 0.00 0.00 0.00 24.50 43.50 378.50 227.00 56.11 c 3.00 j 0.00 e 0.00 b 729.61
1917 0.00 0.00 0.00 1.50 7.50 f 0.00 z 187.50 h 76.43 b 16.00 0.00 f 0.00 i 0.00 h 93.93
1918 0.00 0.00 0.00 0.00 a 64.00 0.00 z 0.00 z 0.00 z 2.00 0.52 a 0.00 0.00 l 66.52
1919 0.00 0.00 0.00 b 0.00 0.00 z 138.89 c 148.00 g 25.50 j 35.00 0.00 z 0.00 z 0.00 b 173.89
1920 0.00 k 0.00 c 0.00 0.00 13.00 157.50 172.29 e 92.50 45.50 1.50 0.00 c 0.00 482.29
1921 0.00 0.00 0.00 a 1.50 81.63 a 255.00 e 374.67 b 139.00 g 58.93 b 0.60 e 0.00 d 0.00 d 772.33
1922 0.00 0.00 b 0.00 0.00 c 27.38 a 170.50 144.67 a 237.00 103.50 21.46 e 0.00 c 0.00 704.51
1923 0.00 0.00 b 0.00 0.00 15.50 b 201.11 c 331.70 a 87.50 f 47.00 0.00 e 0.00 c 0.00 f 595.31
1924 0.00 t 0.00 n 0.00 m 0.00 i 0.00 b 41.67 c 109.50 132.35 e 4.50 h 0.00 b 0.00 i 0.00 c 283.51
1925 0.00 a 0.00 r 0.00 i 11.50 n 42.00 i 75.00 i 158.00 f 117.50 h 110.00 0.00 b 0.00 0.00 m 110.00
1926 0.00 l 0.00 g 0.00 j 2.00 33.50 h 53.40 e 208.73 a 163.04 d 49.00 0.00 b 0.00 0.00 476.17
1927 0.00 0.00 b 0.00 0.00 z 0.00 z 71.00 i 161.09 c 70.61 d 155.89 b 0.00 g 0.00 z 0.00 z 387.59
1928 0.00 z 0.00 z 0.00 a 0.00 28.50 24.50 214.50 154.50 22.50 13.00 0.00 0.00 457.50
1929 0.00 a 0.00 0.00 0.00 29.00 47.50 q 235.08 a 166.50 56.50 3.10 a 0.00 0.00 490.18
1930 0.00 0.00 0.00 j 5.50 26.50 99.00 306.00 248.00 51.50 19.50 0.00 0.00 756.00
1931 0.00 0.00 0.00 0.00 33.00 276.00 336.50 233.50 182.50 5.50 0.00 b 0.00 1067.00
1932 0.00 0.00 0.00 0.00 22.50 153.50 252.00 186.50 12.00 2.00 0.00 0.00 628.50
1933 0.00 0.00 0.00 0.00 21.50 323.50 290.00 122.50 119.50 0.00 1.50 0.00 878.50
1934 0.00 0.00 0.00 7.50 183.50 263.50 323.50 174.00 26.00 2.58 a 0.00 0.00 980.58
1935 0.00 0.00 0.00 0.00 0.00 52.00 349.00 207.70 a 78.00 4.00 0.00 0.00 690.70
1936 0.00 0.00 0.00 0.00 57.50 97.50 454.50 292.50 94.00 0.00 0.00 0.00 996.00
1937 0.00 0.00 0.00 0.00 28.50 88.50 265.50 308.50 98.50 1.00 0.00 0.00 790.50
1938 0.00 0.00 0.00 a 0.00 10.00 75.00 251.10 a 211.50 80.50 16.00 0.00 0.00 a 644.10
1939 0.00 0.00 0.00 10.50 78.50 147.50 266.00 150.00 133.50 2.00 0.00 0.00 788.00
1940 0.00 0.00 0.00 0.00 12.00 120.50 300.00 125.00 92.00 0.00 0.00 0.00 649.50
1941 0.00 0.00 0.00 5.50 64.00 136.00 238.50 211.00 62.00 0.00 0.00 0.00 717.00
1942 0.00 0.00 0.00 6.50 36.00 102.00 172.50 142.50 54.50 0.50 0.00 0.00 514.50
1943 0.00 0.00 0.00 0.00 31.00 189.00 231.00 178.00 17.50 0.00 0.00 0.00 646.50
1944 0.00 0.00 0.00 0.00 86.50 172.00 137.50 179.50 34.50 0.00 0.00 0.00 610.00
1945 0.00 0.00 0.00 0.00 0.50 42.00 135.00 143.00 66.00 0.50 0.00 0.00 387.00
1946 0.00 0.00 0.00 0.00 3.00 153.50 192.00 83.00 24.00 5.00 0.00 0.00 460.50
1947 0.00 0.00 0.00 0.00 0.00 56.50 135.50 360.50 150.50 29.00 0.00 0.00 732.00
1948 0.00 z 0.00 z 0.00 z 3.00 e 9.50 45.00 235.00 224.50 113.50 0.00 0.00 g 0.00 630.50
1949 0.00 j 0.00 0.00 a 0.50 44.00 195.50 299.50 232.50 8.00 8.50 0.00 a 0.00 788.50
1950 0.00 0.00 0.00 0.00 11.37 a 106.50 108.00 93.52 a 16.50 5.50 n 0.00 0.00 b 335.88
1951 0.00 d 0.00 0.00 1.55 a 32.79 e 28.00 m 0.00 z 0.00 z 4.00 11.22 b 0.00 0.00 a 49.56
1952 0.00 0.00 0.00 11.00 24.28 a 204.50 207.50 65.00 39.44 c 0.00 e 0.00 k 0.00 c 551.73
1953 0.00 d 0.00 l 0.00 e 0.00 h 10.50 i 214.62 d 157.50 i 180.50 15.50 v 11.50 j 0.00 n 0.00 i 395.12
1954 0.00 g 0.00 a 0.00 z 0.00 a 10.33 a 146.00 f 152.00 p 153.50 51.96 b 3.00 0.00 k 0.00 z 218.80
1955 0.00 a 0.00 e 0.00 c 0.00 a 48.05 a 80.17 a 382.91 d 353.50 90.00 a 5.17 a 0.00 a 0.00 e 959.80
1956 0.00 b 0.00 z 0.00 c 0.56 c 49.00 f 284.40 e 134.13 e 196.85 a 20.00 10.50 0.00 a 0.00 646.44
1957 0.00 a 0.00 c 0.00 d 1.50 14.50 116.38 a 363.50 195.00 20.50 0.00 0.00 0.00 711.38
1958 0.00 0.00 0.00 3.00 30.50 59.50 153.00 243.00 45.00 7.50 0.00 0.00 541.50
1959 0.00 0.00 a 0.00 0.00 63.11 c 176.00 211.50 324.00 81.50 0.00 0.00 0.00 856.11
1960 0.00 0.00 0.00 13.00 11.00 80.50 211.50 222.00 114.50 5.50 0.00 0.00 658.00
1961 0.00 0.00 0.00 0.00 25.50 157.50 180.00 144.00 j 79.00 0.50 0.00 0.00 442.50
1962 0.00 0.00 0.00 8.00 95.00 150.50 171.00 161.00 25.00 15.00 0.00 0.00 625.50
1963 0.00 0.00 a 0.00 0.00 33.00 224.50 238.50 161.00 56.00 32.50 0.00 0.00 745.50
1964 0.00 0.00 0.00 0.00 77.00 177.50 344.50 179.50 63.00 0.00 0.00 0.00 841.50
1965 0.00 0.00 0.00 0.00 42.50 114.50 209.50 168.50 12.00 8.00 0.00 0.00 555.00
1966 0.00 0.00 0.00 0.00 23.50 153.00 311.50 133.50 42.00 5.00 0.00 0.00 668.50
1967 0.00 0.00 1.50 2.00 35.50 108.00 177.00 99.50 13.00 5.00 0.00 0.00 441.50
1968 0.00 0.00 0.00 2.50 7.00 159.50 192.00 199.00 22.50 20.00 0.00 0.00 602.50
1969 0.00 0.00 0.00 0.00 57.00 31.00 250.00 217.50 48.00 10.50 0.00 0.00 614.00
1970 0.00 0.00 0.00 24.00 71.00 183.50 255.00 190.50 78.00 5.50 0.00 0.00 807.50
1971 0.00 0.00 0.00 0.50 7.00 263.00 164.00 169.00 83.00 i 7.75 a 0.00 0.00 611.25
1972 0.00 0.00 0.00 0.00 89.50 138.00 196.50 227.00 38.00 0.00 0.00 0.00 689.00
1973 0.00 0.00 z 0.00 0.00 9.50 188.50 262.00 240.50 48.50 12.00 0.00 0.00 761.00
1974 0.00 0.00 0.00 9.50 19.50 109.00 369.50 131.50 32.50 0.00 0.00 0.00 671.50
1975 0.00 0.00 0.00 a 0.00 82.50 166.50 316.00 247.50 41.00 21.00 0.00 0.00 874.50
1976 0.00 0.00 0.00 10.50 19.50 170.00 312.00 214.00 59.00 11.50 0.00 0.00 796.50
1977 0.00 0.00 0.00 22.50 149.00 192.50 340.50 123.50 42.00 0.00 0.00 0.00 870.00
1978 0.00 0.00 2.00 0.00 68.50 164.50 219.50 211.50 130.00 0.00 0.00 0.00 796.00
1979 0.00 0.00 0.00 0.00 34.00 139.00 226.00 185.50 56.00 2.50 0.00 0.00 643.00
1980 0.00 0.00 0.00 14.00 82.50 173.00 303.50 211.00 75.00 0.00 0.00 0.00 859.00
1981 0.00 0.00 0.00 9.00 11.00 144.00 278.00 158.50 32.00 0.00 0.00 0.00 632.50
1982 0.00 0.00 0.00 0.00 22.50 43.50 278.00 182.00 50.00 0.00 0.00 0.00 576.00
1983 0.00 0.00 0.00 0.00 0.00 164.50 348.50 329.00 96.00 9.62 b 0.00 0.00 947.62
1984 0.00 0.00 0.00 0.50 16.50 164.50 204.50 283.50 62.50 1.00 0.00 0.00 733.00
1985 0.00 0.00 0.00 44.00 68.00 111.00 237.00 115.50 118.50 0.00 0.00 0.00 694.00
1986 0.00 0.00 4.50 3.50 33.00 212.50 313.50 113.50 53.00 0.00 0.00 0.00 733.50
1987 0.00 0.00 0.00 16.00 118.50 275.50 367.87 a 150.00 27.50 0.00 0.00 0.00 955.37
1988 0.00 0.00 0.00 0.00 79.50 302.50 327.00 326.00 66.50 0.00 0.00 0.00 1101.50
1989 0.00 0.00 0.00 0.00 26.00 117.00 266.00 156.00 34.00 1.50 0.00 0.00 600.50
1990 0.00 0.00 0.00 18.50 5.50 150.50 165.50 152.50 106.50 5.50 0.00 0.00 604.50
1991 0.00 0.00 0.00 10.00 101.50 226.50 203.00 160.50 53.00 0.00 0.00 0.00 754.50
1992 0.00 0.00 0.00 0.00 32.50 76.50 56.50 59.50 12.50 0.50 0.00 0.00 238.00
1993 0.00 0.00 0.00 0.00 3.50 68.50 135.50 139.50 4.50 7.50 0.00 0.00 359.00
1994 0.00 0.00 0.00 13.97 a 44.00 37.00 p 60.50 i 83.50 71.00 0.00 0.00 0.00 212.47
1995 0.00 0.00 0.00 0.00 1.50 184.00 222.00 265.00 25.50 6.50 0.00 0.00 704.50
1996 0.00 0.00 0.00 0.00 23.00 131.50 131.00 79.50 37.00 0.00 0.00 0.00 z 402.00
1997 0.00 0.00 0.00 0.00 0.00 100.50 176.18 a 57.00 20.00 25.00 0.00 0.00 378.68
1998 0.00 0.00 0.00 0.00 66.50 86.38 a 147.50 0.00 z 70.50 0.00 0.00 0.00 370.88
1999 0.00 d 0.00 a 0.00 b 0.00 a 22.96 d 107.14 b 250.21 c 86.00 35.00 0.00 0.00 0.00 501.32
2000 0.00 0.00 a 0.00 0.00 26.35 a 73.00 165.33 a 121.00 60.52 a 2.14 b 0.00 b 0.00 448.34
2001 0.00 0.00 a 0.00 6.21 a 22.00 128.00 198.00 164.00 11.00 1.50 0.00 0.00 530.71
2002 0.00 0.00 0.00 9.00 26.00 163.50 278.50 106.50 73.50 4.50 0.00 0.00 661.50
2003 0.00 0.00 0.00 7.00 9.50 67.50 164.00 175.50 49.50 5.50 0.00 0.00 478.50
2004 0.00 0.00 0.00 0.00 11.00 64.00 122.50 42.50 51.50 0.00 0.00 0.00 291.50
2005 0.00 0.00 q 0.00 5.50 1.00 176.50 217.50 101.00 82.50 29.50 0.00 0.00 613.50
2006 0.00 0.00 0.00 0.00 58.00 94.50 255.00 123.00 10.50 7.50 0.00 0.00 e 548.50
2007 0.00 0.00 0.00 a 7.50 38.50 116.50 174.00 137.50 51.00 19.50 0.00 e 0.00 a 544.50
2008 0.00 d 0.00 l 0.00 f 0.00 8.50 54.00 140.00 77.50 14.00 3.50 0.00 0.00 297.50
2009 0.00 0.00 0.00 1.00 8.50 k 116.40 e 45.98 a 63.00 27.50 0.00 0.00 0.00 253.88
2010 0.00 a 0.00 a 0.00 4.00 52.50 38.00 p 221.50 238.00 14.00 2.50 0.00 0.00 532.50
2011 0.00 d 0.00 0.00 0.00 b 14.98 a 112.22 c 313.50 148.50 29.44 c 18.00 j 0.00 u 0.00 618.65
2012 0.00 0.00 8.50 0.00 70.02 b 129.64 b 334.05 b 118.00 g 46.50 0.00 0.00 c 0.00 588.71
2013 0.00 0.00 e 0.00 a 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 0.00 0.00 0.15 3.33 35.65 133.57 230.29 170.14 54.83 5.02 0.01 0.00 659.74
S.D. 0.00 0.00 0.95 6.50 32.88 65.75 82.29 71.57 37.61 7.49 0.14 0.00 188.97
SKEW 0.00 0.00 7.36 3.16 1.63 0.60 0.42 0.51 1.02 1.80 10.25 0.00 0.00
MAX 0.00 0.00 8.50 44.00 183.50 323.50 458.00 360.50 182.50 32.50 1.50 0.00 1101.50
MIN 0.00 0.00 0.00 0.00 0.00 24.50 45.98 42.50 0.00 0.00 0.00 0.00 238.00
NO YRS 109 105 107 112 108 107 106 107 113 109 108 108 75