RIVER FALLS, WISCONSIN

Monthly Total Growing Degree Days

(477226)

Base Temperature = 40 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201207
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
1918 0.00 z 0.00 z 0.00 z 97.76 a 547.50 760.50 853.50 902.50 391.50 294.00 91.50 0.00 b 3938.76
1919 0.00 0.00 b 0.00 z 0.00 z 0.00 z 0.00 z 330.00 u 99.00 z 675.00 184.50 10.50 0.00 870.00
1920 0.00 a 0.00 56.83 a 87.00 461.00 818.50 858.00 661.50 i 510.50 j 483.00 4.00 1.00 2769.33
1921 0.00 0.00 a 41.50 307.50 553.50 889.14 a 1079.00 602.50 i 595.50 257.50 2.50 0.00 3726.14
1922 0.00 a 0.00 0.00 121.00 654.50 813.00 848.50 928.00 738.00 364.77 a 83.50 0.00 4551.27
1923 0.00 0.00 5.00 163.50 510.50 900.50 1055.50 817.50 652.50 257.00 39.00 4.50 4405.50
1924 0.00 0.00 0.00 174.50 251.50 704.50 859.00 770.35 a 512.14 b 454.00 35.00 0.00 3760.99
1925 0.00 a 0.00 44.50 297.50 368.50 765.00 882.50 960.48 a 737.00 83.50 9.00 0.00 4147.98
1926 0.00 0.00 9.50 140.00 603.00 621.50 931.50 892.80 a 518.00 215.00 12.50 0.00 3943.80
1927 0.00 a 0.00 24.50 158.00 405.50 640.00 816.00 721.50 634.50 262.00 11.00 0.00 3673.00
1928 0.00 0.00 41.50 108.00 518.00 585.00 911.00 879.50 483.50 317.50 28.50 0.00 3872.50
1929 0.00 0.00 16.00 192.50 377.00 689.50 965.50 871.50 563.50 224.00 16.50 0.00 3916.00
1930 0.00 a 22.00 14.00 209.50 520.00 774.00 986.50 964.50 598.50 296.50 115.50 0.00 4501.00
1931 0.00 2.00 1.00 223.50 408.00 934.00 1062.00 887.50 816.21 a 388.00 82.24 a 0.00 a 4804.45
1932 0.00 3.50 4.00 172.00 537.00 889.50 1004.00 841.50 559.00 208.50 37.00 2.00 4258.00
1933 0.00 a 0.00 12.50 171.00 554.50 1034.00 1097.00 871.00 738.00 203.00 44.00 0.00 4725.00
1934 0.00 0.00 13.00 142.00 811.50 925.86 a 1031.00 886.60 a 492.50 378.00 49.00 0.00 4729.46
1935 0.00 0.00 27.00 184.14 a 403.52 a 673.50 1144.00 907.50 612.00 259.50 1.50 0.00 4212.65
1936 0.00 0.00 2.50 90.50 674.50 773.50 1211.50 1043.15 a 714.83 a 201.50 23.00 2.50 4737.48
1937 0.00 0.00 0.00 137.00 572.50 744.50 1055.50 1087.00 659.50 236.00 21.50 0.00 4513.50
1938 0.00 0.00 a 121.00 264.00 501.00 799.00 986.00 1007.00 627.00 457.50 62.00 0.00 a 4824.50
1939 0.00 a 0.00 64.14 b 202.00 713.50 821.50 1007.00 913.00 691.50 275.00 32.00 5.50 4725.14
1940 0.00 d 0.00 0.00 146.50 448.47 a 773.50 1018.50 856.00 713.00 373.50 35.00 0.00 4364.47
1941 0.00 a 0.00 a 5.00 335.00 c 691.50 819.50 1004.83 b 958.00 674.48 a 336.00 52.00 17.00 4893.31
1942 0.00 a 0.00 25.00 366.00 467.50 773.79 a 909.50 899.00 528.00 323.00 55.00 0.00 4346.79
1943 0.00 0.00 b 35.00 158.50 437.62 a 859.00 998.00 938.00 499.00 254.00 0.00 0.00 a 4179.12
1944 11.00 0.00 0.00 122.50 668.50 851.50 892.50 972.88 a 626.50 312.00 113.50 0.00 a 4570.88
1945 0.00 0.00 156.00 174.00 380.50 605.50 864.00 882.50 572.00 239.00 33.00 0.00 3906.50
1946 0.00 a 0.00 163.50 279.00 453.00 846.50 972.00 827.00 574.00 364.50 19.00 9.00 4507.50
1947 0.00 0.00 a 8.50 88.00 360.50 662.14 b 928.00 1141.83 a 651.50 554.50 43.39 b 0.00 b 4438.37
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 748.00 1014.00 939.00 756.50 300.00 57.50 3.50 3818.50
1949 0.00 0.00 9.00 203.50 637.00 901.50 1085.50 980.00 484.50 388.00 50.00 1.00 4740.00
1950 0.00 0.00 0.00 a 50.00 444.50 710.00 829.00 725.50 570.00 379.75 a 24.00 0.00 a 3732.75
1951 0.00 0.00 3.50 111.50 613.00 671.50 878.00 797.00 488.50 297.50 17.50 10.00 3888.00
1952 0.00 0.00 3.50 289.00 512.00 825.00 948.50 838.50 638.28 a 145.50 67.00 0.00 4267.28
1953 0.00 0.00 20.00 67.00 534.50 847.00 908.00 952.50 603.00 489.50 107.50 0.00 4529.00
1954 0.00 10.00 2.00 168.00 h 382.50 870.50 979.00 862.00 575.69 a 227.69 b 50.00 0.00 b 3959.38
1955 0.00 0.00 22.50 370.50 660.82 a 816.50 1139.80 c 1046.50 636.00 327.50 6.00 0.00 a 5026.12
1956 0.00 0.00 0.00 67.00 520.00 917.07 a 855.50 885.50 537.00 515.50 85.00 0.00 4382.57
1957 0.00 0.00 5.00 274.50 510.00 784.00 1066.00 894.00 541.00 233.50 41.00 0.00 4349.00
1958 0.00 9.00 9.00 211.50 584.50 627.50 877.50 911.50 651.00 380.00 70.00 0.00 4331.50
1959 0.00 0.00 22.50 192.00 633.50 862.00 970.00 1030.00 648.50 143.00 6.00 0.00 4507.50
1960 0.00 a 0.00 21.70 a 230.00 538.00 715.50 961.00 973.00 673.50 317.00 28.50 3.00 4461.20
1961 0.00 0.50 29.00 80.00 481.50 820.50 944.00 970.50 611.50 351.00 35.50 3.00 4327.00
1962 0.00 0.00 5.50 207.50 692.00 791.00 885.50 905.50 525.00 389.50 28.00 42.00 4471.50
1963 0.00 0.00 100.50 267.00 512.00 913.00 1032.00 895.00 679.50 591.00 78.00 0.00 5068.00
1964 0.00 3.50 9.00 274.50 693.00 852.00 1104.00 889.00 585.50 294.00 158.00 0.00 4862.50
1965 0.00 0.00 0.00 a 126.00 649.00 808.00 931.50 871.50 428.50 344.00 45.50 0.00 4204.00
1966 0.00 4.50 65.00 113.00 434.00 837.50 1085.50 851.50 591.50 267.50 21.00 0.00 4271.00
1967 0.00 0.00 57.00 194.50 404.50 806.50 905.50 820.00 599.00 278.00 21.00 0.00 4086.00
1968 0.00 0.00 142.50 318.00 441.00 811.50 942.00 928.50 598.00 354.50 24.50 3.00 4563.50
1969 0.00 0.00 0.00 271.00 620.50 611.00 964.50 1002.50 0.00 z 231.00 48.00 0.00 3748.50
1970 0.00 0.00 0.00 216.50 575.88 e 872.50 1036.50 931.03 a 589.00 296.05 a 6.50 4.00 4527.97
1971 0.00 0.00 9.00 255.00 454.15 a 930.50 855.00 848.50 645.00 433.00 34.50 0.00 4464.65
1972 0.00 0.00 2.00 135.50 672.50 765.00 896.00 895.00 558.00 215.00 17.50 0.00 4156.50
1973 0.00 0.00 84.50 182.50 445.00 860.00 980.00 983.00 577.50 459.00 32.50 0.00 4604.00
1974 0.00 0.00 10.50 239.50 460.00 731.50 1103.00 843.00 496.50 329.50 54.00 0.00 4267.50
1975 0.00 0.00 0.00 102.00 631.00 811.00 1038.50 921.50 494.00 382.50 132.50 0.00 4513.00
1976 0.00 5.50 68.00 315.50 527.00 881.00 1048.00 960.50 608.50 208.00 10.00 0.00 b 4632.00
1977 0.00 0.00 89.00 425.00 842.00 824.50 1055.50 822.00 637.00 242.00 74.50 0.00 5011.50
1978 0.00 a 0.00 42.00 144.50 616.00 793.00 941.00 938.00 765.50 296.50 87.00 0.00 4623.50
1979 0.00 0.00 2.00 164.50 455.00 777.00 937.00 847.00 656.50 246.50 34.50 0.00 4120.00
1980 0.00 0.00 8.00 304.50 640.67 a 810.00 1031.00 931.00 604.50 207.50 50.00 0.00 4587.17
1981 4.00 23.50 72.00 294.00 511.50 798.00 964.00 901.00 579.00 246.00 89.50 0.00 4482.50
1982 0.00 0.00 7.00 185.00 673.50 666.50 1045.00 921.00 605.50 341.00 31.00 18.50 4494.00
1983 0.00 0.00 40.00 119.00 438.00 828.00 1082.50 1054.00 671.50 293.50 66.00 0.00 4592.50
1984 0.00 3.00 0.00 202.50 496.50 873.00 935.50 997.50 525.00 389.50 33.50 0.00 4456.00
1985 0.00 0.50 47.50 390.50 704.50 716.50 960.00 821.50 604.50 249.00 12.00 0.00 4506.50
1986 0.00 0.00 85.50 333.50 624.00 866.50 1015.50 817.00 601.50 297.50 17.00 0.00 4658.00
1987 0.00 0.00 107.00 423.50 728.00 953.50 1081.00 888.00 661.50 177.00 87.00 0.00 5106.50
1988 0.00 a 0.00 23.00 214.00 759.00 1009.50 1127.50 1069.50 675.50 183.50 20.50 0.00 5082.00
1989 0.00 0.00 42.50 208.00 560.50 778.00 1057.50 925.00 617.00 370.00 11.00 0.00 4569.50
1990 0.00 0.00 78.50 290.00 489.50 872.50 964.50 943.00 730.00 279.50 110.00 1.50 4759.00
1991 0.00 2.00 54.00 318.50 681.00 999.50 982.00 973.00 587.50 277.50 1.50 0.00 4876.50
1992 0.00 0.00 15.50 149.00 656.50 762.50 800.50 806.00 600.50 296.50 5.50 0.00 4092.50
1993 0.00 0.00 14.50 174.00 549.50 754.50 955.00 969.50 481.00 260.00 8.50 0.00 4166.50
1994 0.00 0.50 26.50 242.00 532.00 815.50 856.50 803.00 685.50 375.00 53.50 0.00 4390.00
1995 0.00 0.00 46.50 70.00 400.00 877.50 962.00 999.50 522.50 255.75 a 0.00 0.00 4133.75
1996 0.00 0.00 j 5.00 86.00 397.00 759.50 847.00 883.00 603.00 253.00 3.50 0.00 3837.00
1997 0.00 0.00 12.50 153.00 320.50 822.00 888.00 797.00 625.50 305.00 8.00 0.00 3931.50
1998 0.00 9.00 61.50 258.50 683.50 685.00 944.50 921.50 740.00 289.50 35.00 20.00 4648.00
1999 0.00 a 2.00 20.50 220.00 575.50 750.00 1049.02 c 847.50 552.41 a 219.50 93.50 1.00 4330.93
2000 0.00 15.00 110.50 184.50 566.50 708.50 918.00 906.00 567.86 b 364.50 60.50 0.00 4401.86
2001 0.00 0.00 b 0.00 202.50 535.00 758.50 962.50 927.00 530.00 215.50 194.50 16.00 4341.50
2002 0.00 0.00 4.50 238.50 340.50 824.00 1052.00 873.50 650.17 a 129.50 9.00 0.00 4121.67
2003 0.00 0.00 52.50 h 219.00 461.00 725.50 914.00 970.00 614.00 274.00 17.00 0.00 4194.50
2004 0.00 1.50 58.50 173.50 f 397.00 645.00 872.50 690.50 738.50 264.50 40.00 0.00 3708.00
2005 0.00 0.00 35.00 g 267.50 426.00 892.50 970.50 861.50 693.00 320.00 39.00 0.00 4470.00
2006 0.00 0.00 d 8.50 f 300.00 535.00 810.00 1064.00 888.50 477.00 168.00 41.50 0.00 4284.00
2007 0.00 a 0.00 102.00 238.00 625.00 840.50 949.00 883.00 628.00 376.50 17.00 0.00 4659.00
2008 0.00 0.00 4.00 124.50 370.00 716.50 910.50 818.00 621.00 231.50 92.00 0.00 3888.00
2009 0.00 0.00 28.50 163.50 484.50 686.50 749.50 751.50 663.50 99.50 77.50 0.00 3704.50
2010 0.00 0.00 51.00 310.50 521.00 749.00 954.00 981.50 488.50 316.50 53.50 0.00 4425.50
2011 0.00 a 0.00 3.00 92.50 438.00 740.50 1053.50 870.50 543.00 355.00 36.00 0.00 4132.00
2012 0.00 a 0.00 335.12 b 203.57 b 611.00 803.00 1089.65 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3042.34
Period of Record Statistics
MEAN 0.16 1.28 35.85 204.30 535.08 796.16 972.73 904.14 606.37 298.84 43.93 1.79 4415.07
S.D. 1.21 4.02 49.97 85.80 116.53 91.31 88.39 80.75 80.73 94.26 36.76 5.73 333.03
SKEW 8.21 4.08 3.03 0.43 0.20 -0.02 0.07 0.11 -0.01 0.53 1.40 4.75 -0.16
MAX 11.00 23.50 335.12 425.00 842.00 1034.00 1211.50 1141.83 816.21 591.00 194.50 42.00 5106.50
MIN 0.00 0.00 0.00 50.00 251.50 585.00 749.50 690.50 391.50 83.50 0.00 0.00 3673.00
NO YRS 93 92 89 91 93 94 94 91 92 94 94 94 82