ROCHESTER INTL AP, MINNESOTA

Monthly Total Growing Degree Days

(217004)

Base Temperature = 40 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
1893 0.00 r 0.00 z 8.78 a 96.43 b 436.07 a 156.00 x 420.50 r 859.00 671.79 b 315.50 g 83.40 e 0.00 z 2155.46
1894 2.50 0.00 f 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 2.50
1895 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
1896 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
1897 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
1898 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
1899 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
1900 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
1901 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
1902 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
1903 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
1904 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
1905 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
1906 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
1907 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
1908 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 417.00 m 911.00 905.72 a 897.50 0.00 z 0.00 z 71.50 2785.72
1909 0.00 z 0.00 0.50 60.50 426.85 e 759.44 c 913.00 1030.00 516.50 228.88 a 124.50 2.21 c 4062.39
1910 0.00 0.00 h 200.00 318.00 371.50 863.33 c 989.93 a 865.00 558.50 381.50 6.00 0.00 4553.77
1911 0.00 0.00 47.00 216.50 709.00 933.00 966.68 a 0.00 z 559.62 d 206.00 0.00 2.50 3640.30
1912 0.00 0.00 7.00 283.45 a 595.00 704.50 972.50 819.50 598.50 292.00 56.50 0.00 a 4328.95
1913 0.00 4.50 23.00 229.50 448.50 903.50 949.00 963.00 636.00 295.50 113.50 7.50 4573.50
1914 0.00 0.00 13.00 228.00 572.00 822.00 1046.50 900.50 627.00 469.50 69.00 1.50 4749.00
1915 0.00 a 0.00 1.50 457.00 392.67 a 626.79 b 834.00 735.00 609.00 348.00 74.00 0.00 4077.95
1916 0.00 0.00 33.00 161.50 489.00 641.50 1157.00 988.00 602.00 300.18 a 61.50 15.00 4448.68
1917 0.00 0.00 15.00 123.50 383.00 675.50 970.00 806.50 562.50 91.50 74.00 0.00 3701.50
1918 0.00 a 6.00 84.22 a 108.50 616.00 809.50 884.50 778.00 f 457.50 317.00 87.50 1.15 d 3371.86
1919 0.00 0.00 41.00 166.50 499.62 a 908.04 b 1032.50 864.50 719.00 173.37 d 6.72 a 0.00 4411.25
1920 0.00 0.00 99.20 a 125.50 500.00 827.00 881.00 801.00 729.00 334.00 h 7.00 0.00 z 3969.70
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1928 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 243.00 g 43.00 0.00 43.00
1929 0.00 e 0.00 a 32.50 143.50 n 432.00 750.50 982.04 c 855.00 562.00 261.43 a 2.59 a 0.00 c 3878.06
1930 0.00 38.50 35.00 234.50 556.00 777.00 1018.50 945.50 606.50 323.50 141.00 0.00 4676.00
1931 0.57 d 2.50 0.00 268.50 451.50 970.50 1053.00 890.50 807.41 a 424.38 b 123.00 1.00 4992.87
1932 0.00 0.00 a 4.50 178.00 561.00 878.50 996.00 939.50 527.00 220.00 27.41 a 0.00 4331.91
1933 0.00 0.00 16.02 a 162.00 510.00 1015.50 1006.50 787.00 755.50 225.00 40.50 2.50 4520.52
1934 0.00 0.00 28.00 177.50 813.50 957.00 1025.50 819.00 509.50 408.00 66.00 0.00 4804.00
1935 0.00 0.00 66.00 169.00 375.00 656.00 1108.00 911.00 636.00 253.50 7.50 0.00 4182.00
1936 0.00 0.00 26.00 139.50 699.00 727.00 1167.50 1036.50 707.50 235.50 15.00 11.50 4765.00
1937 0.00 a 0.00 0.00 126.50 488.00 691.00 993.50 1062.50 611.00 188.00 21.50 0.00 4182.00
1938 0.00 0.00 85.00 217.00 467.50 746.50 965.00 953.00 609.00 410.00 78.50 0.00 4531.50
1939 0.00 0.00 55.50 166.00 684.00 856.50 1009.50 893.50 723.00 296.00 34.00 25.50 4743.50
1940 0.00 0.00 8.00 149.50 500.00 843.00 1023.00 839.50 694.50 382.50 35.50 0.00 4475.50
1941 0.00 0.00 6.50 353.50 692.00 833.50 1005.00 955.50 670.50 334.50 48.50 11.50 4911.00
1942 0.00 a 0.00 24.00 342.50 450.50 768.50 933.50 904.00 519.00 309.00 51.00 0.00 4302.00
1943 0.00 0.00 53.00 148.00 460.00 898.00 1045.50 944.50 493.00 247.00 0.00 0.00 4289.00
1944 13.50 0.00 0.00 114.00 670.50 867.50 913.50 937.00 624.50 291.50 92.00 0.00 4524.00
1945 0.00 0.00 175.00 160.50 350.00 624.50 893.00 901.00 569.00 242.50 44.50 0.00 3960.00
1946 0.00 0.00 172.00 295.50 443.50 792.50 998.00 810.50 555.50 363.00 14.50 11.50 4456.50
1947 0.50 0.00 8.50 105.00 374.50 710.00 946.50 1147.00 669.00 551.50 44.00 0.00 4556.50
1948 0.00 0.00 41.00 309.00 511.50 785.50 1031.00 985.00 760.00 281.00 61.50 2.50 4768.00
1949 0.00 0.00 12.50 220.50 644.50 948.00 1087.50 995.50 515.50 412.00 70.00 0.00 4906.00
1950 0.00 0.00 0.50 59.00 512.00 792.50 898.00 794.50 620.00 430.50 26.50 0.00 4133.50
1951 0.00 0.00 1.50 105.50 641.00 702.93 a 945.00 844.50 505.00 294.00 11.50 13.50 4064.43
1952 0.00 0.00 6.00 276.00 470.00 866.50 959.97 a 860.50 629.50 133.50 79.50 0.00 4281.47
1953 0.00 0.00 26.50 62.00 526.50 879.50 934.50 938.27 a 595.50 460.50 111.50 1.00 4535.77
1954 0.00 a 14.50 9.00 278.00 377.50 900.00 1008.50 862.50 596.00 242.00 63.50 0.00 4351.50
1955 0.00 0.00 27.00 356.00 645.50 751.00 1153.50 1068.00 643.00 323.43 a 5.50 0.00 4972.93
1956 0.00 0.00 0.00 86.50 526.00 956.50 877.00 910.50 522.50 481.50 77.00 0.00 4437.50
1957 0.00 0.00 5.68 a 267.00 458.00 772.00 1083.50 890.50 561.50 263.00 45.00 0.00 4346.18
1958 0.00 10.50 3.00 178.50 534.50 604.50 831.00 860.50 602.50 378.50 73.00 0.00 4076.50
1959 0.00 0.00 10.50 203.00 627.50 843.00 948.00 1024.00 618.00 156.00 9.50 8.50 4448.00
1960 0.00 0.00 16.50 227.00 521.00 688.50 919.50 951.00 654.00 319.50 33.10 a 2.50 4332.60
1961 0.00 4.00 8.00 53.50 439.00 793.50 914.50 937.50 567.00 337.00 21.00 5.00 4080.00
1962 0.00 0.00 3.00 181.50 657.50 777.50 849.00 870.50 496.50 383.22 b 23.50 32.00 4274.22
1963 0.00 0.00 78.50 208.00 467.00 885.50 950.50 828.00 631.00 560.50 76.50 0.00 4685.50
1964 0.00 2.50 8.50 201.50 625.50 814.50 1048.00 798.50 527.00 227.50 132.00 0.00 4385.50
1965 0.00 0.00 0.00 115.50 569.00 762.00 899.50 814.50 446.00 318.50 55.00 2.50 3982.50
1966 0.00 1.50 58.00 87.00 380.50 816.50 989.00 812.00 569.50 258.50 26.50 0.00 3999.00
1967 0.00 0.00 53.50 167.00 365.50 782.50 832.50 748.00 550.50 247.00 20.00 0.00 3766.50
1968 0.00 0.00 105.00 265.50 360.00 752.50 859.00 841.00 546.00 302.50 23.50 0.00 4055.00
1969 0.00 0.00 0.00 227.00 545.00 585.50 922.50 903.50 600.50 223.50 51.50 0.00 4059.00
1970 0.00 0.00 0.00 216.00 560.50 837.00 953.50 884.50 596.00 302.50 16.00 3.50 4369.50
1971 0.00 0.00 11.50 236.00 445.00 940.50 837.00 857.50 661.00 421.50 58.50 0.00 4468.50
1972 0.00 0.00 9.50 124.50 622.50 767.00 859.00 874.50 536.50 184.00 12.50 0.00 3990.00
1973 0.00 0.00 69.00 158.50 418.50 847.00 959.50 947.00 580.00 432.50 32.00 0.00 4444.00
1974 0.00 0.00 5.50 237.00 428.00 729.00 1070.50 810.50 444.00 302.00 32.50 0.00 4059.00
1975 0.00 0.00 0.00 109.00 641.00 825.00 1028.00 955.50 487.00 400.50 154.00 0.00 4600.00
1976 0.00 14.00 60.50 285.00 489.50 846.50 1045.50 924.00 553.50 176.50 9.00 0.00 4404.00
1977 0.00 0.00 113.00 428.00 758.50 802.00 1022.00 776.50 626.00 226.00 88.50 0.00 4840.50
1978 0.00 0.00 42.00 155.50 552.50 790.50 902.50 893.00 712.00 197.50 78.00 0.00 4323.50
1979 0.00 0.00 0.00 155.00 468.50 831.50 1012.00 887.00 675.00 248.50 31.00 1.50 4310.00
1980 0.00 0.00 8.00 262.50 631.00 811.50 1030.00 920.50 602.50 165.50 43.00 0.00 4474.50
1981 3.50 30.50 58.00 251.50 464.00 776.50 926.00 855.50 519.50 203.00 80.00 0.00 4168.00
1982 0.00 0.00 14.50 170.00 629.50 645.00 1019.50 889.00 617.00 318.50 39.00 22.00 4364.00
1983 0.00 0.00 31.00 100.00 365.50 777.00 1049.50 1040.50 613.50 228.00 53.50 0.00 4258.50
1984 0.00 0.00 0.00 153.50 388.50 777.00 859.50 949.00 487.00 320.00 23.50 0.00 3958.00
1985 0.00 0.00 30.00 353.50 630.00 676.50 944.50 784.00 561.50 197.00 7.50 0.00 4184.50
1986 0.00 0.00 85.00 262.50 541.50 777.50 973.00 745.00 584.00 245.00 11.50 0.00 4225.00
1987 0.00 0.00 67.50 356.00 651.50 900.00 1042.50 828.00 599.00 122.00 71.50 0.00 4638.00
1988 0.00 0.00 11.50 155.00 671.50 912.50 1043.00 1010.00 627.50 138.50 24.00 0.00 4593.50
1989 0.50 0.00 57.00 186.00 496.50 733.00 1001.00 884.00 544.50 306.00 2.50 0.00 4211.00
1990 0.00 0.50 66.00 250.00 427.50 826.50 911.50 912.00 673.00 222.50 88.50 0.00 4378.00
1991 0.00 0.00 43.50 260.50 649.00 965.50 933.00 898.00 523.00 225.00 5.50 0.00 4503.00
1992 0.00 0.00 26.50 127.50 564.00 736.00 749.50 717.00 531.00 244.00 5.00 0.00 3700.50
1993 0.00 0.00 1.50 112.50 484.00 708.00 896.50 877.50 407.50 216.50 13.50 0.00 3717.50
1994 0.00 0.00 29.00 203.50 566.50 857.50 846.50 771.50 694.50 332.00 52.00 0.00 4353.00
1995 0.00 0.00 58.00 84.50 466.00 874.00 958.00 1031.00 536.50 236.50 0.00 0.00 4244.50
1996 0.00 0.00 11.00 104.00 413.50 790.00 831.00 821.50 562.00 267.50 7.50 0.00 3808.00
1997 0.00 0.00 15.00 153.50 351.00 831.00 894.50 789.00 612.50 354.50 1.00 0.00 4002.00
1998 0.00 11.50 74.00 274.50 719.00 717.50 917.00 900.00 732.50 296.00 55.00 36.50 4733.50
1999 0.00 a 0.00 36.50 202.50 560.00 770.00 1028.50 827.00 542.50 239.00 80.69 a 7.00 4293.69
2000 0.00 26.00 116.00 218.50 583.50 734.50 911.50 898.00 595.00 381.50 47.50 0.00 4512.00
2001 0.00 0.00 0.00 265.50 545.00 791.00 1005.00 896.00 539.50 234.00 214.50 18.60 a 4509.10
2002 0.00 1.00 6.00 221.50 430.00 863.50 1022.00 843.00 676.00 143.00 18.50 1.00 4225.50
2003 1.50 0.00 65.00 252.50 474.50 761.00 915.00 954.00 588.00 299.00 24.00 1.00 4335.50
2004 0.00 0.50 77.00 275.00 517.00 724.50 875.00 727.00 732.00 284.00 61.50 0.00 4273.50
2005 0.00 0.00 49.50 307.00 473.50 956.00 1003.00 859.00 741.50 359.00 82.50 0.00 4831.00
2006 0.00 0.00 23.00 343.50 599.50 846.50 1063.50 918.50 534.00 211.50 80.00 1.50 4621.50
2007 0.00 0.00 122.00 259.00 699.00 879.50 984.50 924.00 716.00 447.50 22.00 0.00 5053.50
2008 0.00 0.00 3.50 173.00 501.50 842.00 968.00 883.50 676.50 307.50 105.50 0.00 4461.00
2009 0.00 0.50 58.50 211.50 557.00 775.50 785.50 797.50 678.00 126.50 124.50 0.00 4115.00
2010 0.00 0.00 86.50 392.00 593.50 813.50 1013.00 1014.50 586.50 400.00 62.50 0.00 4962.00
2011 0.00 0.00 5.00 172.50 554.50 838.50 1087.50 904.00 579.00 403.50 72.50 0.00 4617.00
2012 0.50 0.00 374.00 277.50 721.00 930.50 1149.00 904.50 655.00 283.00 95.50 12.50 5403.00
2013 0.00 0.00 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 0.24 1.76 39.42 205.35 527.07 803.47 967.61 889.50 602.96 292.13 50.80 3.48 4388.59
S.D. 1.44 6.09 53.24 85.58 106.05 89.24 83.06 81.76 83.27 95.07 40.29 9.68 323.28
SKEW 8.38 4.34 3.23 0.49 0.33 -0.10 0.02 0.37 0.53 0.43 1.09 4.58 0.24
MAX 13.50 38.50 374.00 457.00 813.50 1015.50 1167.50 1147.00 897.50 560.50 214.50 71.50 5403.00
MIN 0.00 0.00 0.00 53.50 350.00 585.50 749.50 717.00 407.50 91.50 0.00 0.00 3700.50
NO YRS 97 96 98 96 97 96 97 96 98 95 98 97 90