BIRD ISLAND, MINNESOTA

Monthly Total Cooling Degree Days

(210783)

Base Temperature = 65 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 197605
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
1893 0.00 c 0.00 0.00 0.00 2.00 0.00 z 0.00 z 120.00 79.50 0.00 0.00 0.00 b 201.50
1894 0.00 a 0.00 0.00 0.00 36.50 145.50 248.00 165.50 77.50 0.00 0.00 0.00 b 673.00
1895 0.00 a 0.00 d 0.00 0.00 41.33 d 86.50 145.00 145.00 125.00 0.00 0.00 0.00 542.83
1896 0.00 0.00 0.00 0.50 70.00 98.00 121.50 175.50 11.00 0.00 0.00 0.00 476.50
1897 0.00 0.00 0.00 0.00 18.00 92.00 203.00 46.00 137.50 11.00 0.00 0.00 507.50
1898 0.00 0.00 0.00 0.00 18.00 112.00 222.50 130.00 63.50 7.50 0.00 0.00 a 553.50
1899 0.00 0.00 0.00 2.00 13.50 65.50 232.50 191.50 33.00 0.00 0.00 0.00 538.00
1900 0.00 0.00 0.00 1.00 49.50 121.00 201.00 381.00 77.50 6.50 0.00 0.00 837.50
1901 0.00 0.00 0.00 12.00 47.05 c 135.00 364.50 244.00 41.50 0.00 a 0.00 0.00 844.05
1902 0.00 0.00 a 0.00 0.00 36.00 28.50 174.00 72.50 h 1.50 0.00 0.00 0.00 240.00
1903 0.00 0.00 0.00 0.00 12.50 56.00 77.50 r 83.50 23.50 0.00 0.00 0.00 175.50
1904 0.00 0.00 0.00 0.00 14.98 a 37.50 m 78.50 104.00 19.50 0.00 0.00 0.00 a 216.98
1905 0.00 0.00 0.00 0.00 5.50 79.50 112.50 174.00 51.00 8.50 0.00 0.00 431.00
1906 0.00 0.00 0.00 a 2.00 19.00 71.79 b 133.50 184.45 a 77.00 0.00 0.00 0.00 b 487.74
1907 0.00 0.00 a 0.00 0.00 a 0.00 82.00 161.00 125.00 36.00 2.58 a 0.00 0.00 a 406.58
1908 0.00 a 0.00 0.00 4.00 10.00 69.00 194.00 110.50 162.00 3.50 0.00 0.00 553.00
1909 0.00 0.00 0.00 0.00 10.50 84.31 a 164.30 a 283.65 a 34.00 2.00 0.00 0.00 a 578.76
1910 0.00 0.00 0.00 0.00 0.50 212.00 210.50 131.50 39.50 16.00 0.00 0.00 610.00
1911 0.00 a 0.00 0.00 0.50 93.52 a 225.00 179.00 75.00 33.50 0.00 0.00 0.00 606.52
1912 0.00 0.00 0.00 0.00 7.00 71.50 170.50 91.00 98.00 7.50 0.00 0.00 445.50
1913 0.00 0.00 0.00 9.00 26.00 182.50 145.00 210.50 99.00 4.00 0.00 0.00 676.00
1914 0.00 0.00 0.00 2.00 47.50 109.00 290.00 160.50 30.00 13.00 0.00 a 0.00 652.00
1915 0.00 0.00 0.00 15.50 7.00 39.00 102.00 87.50 42.00 0.50 0.00 0.00 293.50
1916 0.00 0.00 0.00 0.00 24.00 41.00 401.00 215.00 51.50 0.00 0.00 0.00 732.50
1917 0.00 0.00 0.00 a 0.00 12.50 61.00 236.50 98.50 18.00 0.00 0.00 0.00 426.50
1918 0.00 0.00 0.00 0.00 55.28 a 113.50 181.50 184.00 7.00 1.50 0.00 0.00 542.78
1919 0.00 0.00 0.00 0.00 32.00 189.00 290.00 139.50 b 72.50 0.00 0.00 0.00 723.00
1920 0.00 b 0.00 g 0.00 0.00 21.00 133.50 182.00 126.00 89.00 6.00 0.00 b 0.00 557.50
1921 0.00 0.00 0.00 6.00 70.00 271.00 333.50 172.50 46.00 0.00 0.00 0.00 899.00
1922 0.00 0.00 0.00 0.00 42.50 143.50 140.00 150.35 a 137.00 32.50 0.00 0.00 645.85
1923 0.00 0.00 0.00 a 2.00 23.00 183.62 a 314.00 116.50 56.00 0.00 0.00 0.00 695.12
1924 0.00 0.00 0.00 5.00 0.00 49.00 137.00 147.50 7.00 9.30 a 0.00 0.00 354.80
1925 0.00 0.00 0.00 14.50 58.50 109.00 164.00 219.50 139.00 0.00 0.00 0.00 704.50
1926 0.00 0.00 0.00 2.50 79.50 63.62 a 222.50 142.00 36.50 0.00 0.00 c 0.00 546.62
1927 0.00 0.00 0.00 0.00 17.00 107.00 103.50 72.00 148.50 0.00 0.00 0.00 a 448.00
1928 0.00 0.00 0.00 0.00 40.00 12.00 227.00 168.00 11.00 12.50 0.00 0.00 470.50
1929 0.00 0.00 0.00 1.50 12.92 a 56.00 208.00 167.50 66.72 a 0.00 0.00 0.00 512.64
1930 0.00 0.00 0.00 0.00 30.50 70.34 a 275.12 c 225.50 34.00 11.00 0.00 0.00 646.47
1931 0.00 0.00 0.00 4.50 32.50 297.00 313.00 193.50 198.50 3.50 0.00 a 0.00 1042.50
1932 0.00 0.00 c 0.00 a 0.50 54.00 156.50 242.00 177.00 15.50 1.50 0.00 0.00 647.00
1933 0.00 a 0.00 0.00 0.00 22.00 246.50 l 306.00 140.61 c 124.00 0.00 0.00 a 0.00 592.61
1934 0.00 0.00 0.00 19.00 203.50 204.50 303.00 188.00 7.50 1.00 0.00 b 0.00 a 926.50
1935 0.00 0.00 0.00 0.00 0.00 55.00 373.55 a 238.00 37.24 a 0.00 0.00 0.00 703.79
1936 0.00 0.00 0.00 0.00 66.00 84.50 426.50 281.00 132.50 5.00 0.00 0.00 995.50
1937 0.00 0.00 0.00 b 0.00 34.50 108.00 306.00 358.50 100.50 0.00 0.00 a 0.00 907.50
1938 0.00 0.00 0.00 2.50 12.00 99.50 235.50 258.85 a 53.00 30.00 0.00 c 0.00 691.35
1939 0.00 a 0.00 0.00 0.50 80.50 120.54 b 250.50 153.00 127.24 a 0.00 0.00 0.00 732.28
1940 0.00 0.00 0.00 0.00 27.00 108.50 295.53 a 149.50 95.50 2.50 0.00 0.00 678.53
1941 0.00 0.00 0.00 4.00 75.00 135.50 229.00 187.50 66.50 0.00 0.00 0.00 697.50
1942 0.00 0.00 0.00 9.00 12.00 68.00 155.00 147.00 30.50 0.00 0.00 0.00 421.50
1943 0.00 0.00 1.50 0.00 30.50 199.50 245.50 168.00 13.00 0.00 0.00 0.00 658.00
1944 0.00 0.00 0.00 0.00 74.50 155.50 148.00 172.50 20.00 0.00 0.00 0.00 570.50
1945 0.00 0.00 0.00 0.00 1.50 36.50 145.00 149.50 55.50 0.50 0.00 0.00 388.50
1946 0.00 a 0.00 0.00 2.00 5.50 162.50 202.50 105.50 31.00 0.00 0.00 0.00 509.00
1947 0.00 0.00 0.00 0.00 1.50 55.00 214.00 346.50 110.50 0.00 x 0.00 0.00 727.50
1948 0.00 h 0.00 0.00 3.50 23.50 65.17 a 227.50 147.50 101.50 0.00 0.00 0.00 568.67
1949 0.00 0.00 0.00 0.00 68.50 175.50 279.50 273.50 14.00 1.50 0.00 0.00 812.50
1950 0.00 0.00 0.00 a 0.00 20.50 159.50 143.50 111.50 14.00 5.00 0.00 0.00 454.00
1951 0.00 0.00 0.00 0.50 17.00 35.50 190.00 97.50 4.00 11.00 0.00 0.00 355.50
1952 0.00 0.00 0.00 16.00 34.00 160.50 228.37 a 122.00 83.00 0.00 0.00 0.00 643.87
1953 0.00 0.00 0.00 0.00 39.00 190.00 198.50 201.50 44.00 28.50 0.00 0.00 701.50
1954 0.00 0.00 0.00 0.00 a 18.00 204.50 241.00 108.00 17.50 0.00 0.00 0.00 589.00
1955 0.00 0.00 0.00 4.50 79.50 117.00 406.50 332.00 94.50 14.47 a 0.00 0.00 a 1048.47
1956 0.00 0.00 0.00 0.00 43.00 232.00 160.00 196.00 38.00 22.00 0.00 0.00 691.00
1957 0.00 0.00 0.00 4.00 24.00 89.00 379.50 153.50 13.00 0.00 0.00 0.00 663.00
1958 0.00 0.00 0.00 c 1.00 76.00 61.00 165.00 238.50 66.50 7.50 0.00 0.00 615.50
1959 0.00 b 0.00 z 0.00 k 0.00 79.00 226.00 262.50 307.50 86.50 0.00 0.00 a 0.00 g 961.50
1960 0.00 0.00 0.00 7.00 12.00 59.50 226.50 206.00 115.50 0.00 a 0.00 0.00 626.50
1961 0.00 0.00 a 0.00 0.00 27.50 197.78 c 181.41 d 243.19 b 84.31 a 9.50 0.00 b 0.00 743.69
1962 0.00 0.00 0.00 15.50 57.00 110.17 a 141.00 168.90 b 25.00 15.50 0.00 0.00 533.07
1963 0.00 0.00 0.00 5.17 a 38.50 221.50 252.65 a 170.50 57.50 21.50 0.00 a 0.00 767.32
1964 0.00 a 0.00 0.00 0.50 69.00 193.97 a 335.00 144.67 a 51.50 2.07 a 0.00 b 0.00 796.70
1965 0.00 0.00 0.00 1.50 22.00 120.50 218.50 166.50 9.31 a 6.00 0.00 a 0.00 544.31
1966 0.00 0.00 0.00 0.00 28.00 163.50 361.50 137.00 44.50 4.81 b 0.00 0.00 739.31
1967 0.00 a 0.00 0.50 0.00 32.50 106.03 a 218.50 140.00 20.17 a 6.50 0.00 b 0.00 524.21
1968 0.00 0.00 a 0.00 4.50 13.00 192.00 229.00 247.47 b 33.50 12.40 a 0.00 a 0.00 a 731.87
1969 0.00 b 0.00 0.00 a 0.00 a 87.00 52.24 a 253.68 a 262.47 a 60.00 a 8.50 0.00 a 0.00 723.89
1970 0.00 0.00 0.00 a 15.50 69.50 231.72 a 309.50 212.00 106.00 14.50 0.00 b 0.00 958.72
1971 0.00 0.00 0.00 a 0.50 19.63 a 237.50 150.00 201.00 92.00 9.50 0.00 a 0.00 b 710.13
1972 0.00 0.00 0.00 0.00 90.00 154.50 195.50 234.50 37.00 0.00 0.00 a 0.00 b 711.50
1973 0.00 0.00 0.00 0.00 15.50 203.50 236.00 247.00 47.07 a 7.00 0.00 a 0.00 756.07
1974 0.00 0.00 0.00 a 4.82 b 27.00 154.50 398.00 141.10 b 38.00 6.41 b 0.00 a 0.00 a 769.84
1975 0.00 0.00 0.00 0.00 73.50 153.50 0.00 z 213.90 a 26.50 20.00 0.00 0.00 487.40
1976 0.00 b 0.00 0.00 b 12.50 i 20.67 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 20.67
Period of Record Statistics
MEAN 0.00 0.00 0.02 2.49 36.45 126.04 228.10 178.09 59.70 5.29 0.00 0.00 641.69
S.D. 0.00 0.00 0.17 4.50 31.52 64.32 79.10 67.37 43.05 7.50 0.00 0.00 163.92
SKEW 0.00 0.00 7.88 2.18 2.03 0.43 0.58 0.81 0.86 1.77 0.00 0.00 0.33
MAX 0.00 0.00 1.50 19.00 203.50 297.00 426.50 381.00 198.50 32.50 0.00 0.00 1048.47
MIN 0.00 0.00 0.00 0.00 0.00 12.00 78.50 46.00 1.50 0.00 0.00 0.00 293.50
NO YRS 83 82 83 83 84 80 80 82 83 82 83 82 73