RIVER FALLS, WISCONSIN

Monthly Total Heating Degree Days

(477226)

Base Temperature = 65 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 732.93 a 260.50 53.50 46.50 15.00 363.00 488.00 841.00 1173.72 b 3974.16
1919 1323.50 1356.38 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 u 14.50 z 136.50 670.00 1144.00 1780.50 6410.88
1920 1889.45 a 1522.00 1180.58 a 845.50 328.00 82.00 40.00 17.00 i 67.50 j 328.00 1014.50 1329.50 8559.53
1921 1406.50 1216.44 a 1007.50 499.00 285.00 54.31 a 3.50 43.00 i 197.50 527.00 1178.00 1395.50 7770.25
1922 1697.77 a 1551.50 1126.00 665.00 144.00 38.00 34.50 31.00 143.50 452.60 a 789.50 1461.50 8134.87
1923 1538.00 1673.50 1376.50 706.50 292.50 59.50 3.00 44.00 153.00 567.50 883.50 1118.50 8416.00
1924 1961.00 1339.00 1119.00 662.50 526.50 101.50 38.00 102.82 a 255.00 b 326.00 1018.50 1784.50 9234.32
1925 1698.28 a 1314.50 1033.50 465.50 449.00 93.50 46.50 9.30 a 126.50 887.50 1040.00 1593.50 8757.58
1926 1670.00 1300.00 1325.50 766.00 211.50 166.50 36.00 12.92 a 281.50 621.50 1183.00 1661.50 9235.92
1927 1768.03 a 1254.00 983.50 641.00 381.00 184.50 44.50 106.00 223.00 524.50 1052.50 1824.50 8987.03
1928 1584.00 1321.50 1090.50 828.50 266.50 173.00 26.00 50.00 276.00 505.50 897.50 1320.50 8339.50
1929 2082.50 1714.00 1043.00 603.00 440.50 131.50 20.00 38.00 264.00 575.00 1120.00 1568.50 9600.00
1930 1994.85 a 1175.00 1124.00 596.50 286.50 66.50 31.50 9.50 202.00 607.00 900.50 1443.00 8436.85
1931 1330.00 1044.00 1135.50 568.00 400.00 41.00 20.50 53.00 81.72 a 397.00 785.17 a 1138.22 a 6994.11
1932 1474.00 1448.00 1418.50 631.50 274.50 9.00 26.50 45.00 219.00 623.00 1073.50 1589.00 8831.50
1933 1391.90 a 1556.50 1110.50 662.00 251.00 23.50 2.00 38.50 107.00 642.50 1067.50 1508.00 8360.90
1934 1451.50 1401.00 1202.50 683.50 107.50 34.14 a 12.00 70.27 a 272.00 421.00 840.00 1659.00 8154.40
1935 1791.00 1220.50 1065.50 653.79 a 382.33 a 130.00 0.00 49.50 185.50 552.00 1117.50 1520.50 8668.13
1936 1977.00 2012.00 1180.50 819.50 140.00 76.00 3.00 11.88 a 130.86 a 659.50 1076.00 1393.50 9479.75
1937 1900.00 1545.00 1256.00 671.50 236.00 88.00 6.50 2.00 196.50 596.50 1035.00 1520.00 9053.00
1938 1647.00 1245.48 a 853.50 572.00 298.50 44.50 0.00 6.50 148.00 357.50 989.50 1448.73 a 7611.21
1939 1399.65 a 1502.00 1156.09 b 673.00 143.50 46.50 8.00 18.00 159.00 533.50 870.00 1170.00 7679.24
1940 1855.41 d 1360.50 1339.50 658.00 343.07 a 63.50 19.50 56.00 133.50 402.00 1107.50 1367.00 8705.47
1941 1477.67 a 1422.81 a 1229.50 422.78 c 153.50 77.00 13.36 b 27.00 140.69 a 461.00 863.50 1198.00 7486.81
1942 1439.95 a 1269.00 911.00 412.50 322.00 57.41 a 30.00 30.50 279.00 518.50 963.50 1553.50 7786.86
1943 1778.50 1311.69 b 1314.00 645.00 359.60 a 78.50 5.50 13.50 276.00 547.50 1106.00 1283.40 a 8719.19
1944 1221.00 1290.00 1200.50 705.50 189.50 49.50 16.00 25.83 a 151.50 464.00 790.00 1407.40 a 7510.73
1945 1663.50 1328.50 814.00 627.50 403.50 185.50 36.00 25.00 249.50 551.00 995.00 1585.50 8464.50
1946 1531.92 a 1345.00 720.50 484.00 332.00 75.00 4.00 44.00 210.50 421.00 956.00 1372.50 7496.42
1947 1382.50 1415.04 a 1147.50 720.00 414.50 136.07 b 18.00 6.72 a 208.50 246.00 1153.93 b 1510.45 b 8359.20
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 55.00 6.50 25.00 121.50 492.50 903.50 1450.50 3054.50
1949 1554.00 1439.00 1101.50 588.00 185.00 25.00 0.00 26.00 274.50 414.00 889.00 1409.00 7905.00
1950 1778.50 1457.00 1341.27 a 866.00 348.00 110.50 37.50 103.00 184.00 416.95 a 1138.50 1681.75 a 9462.97
1951 1776.50 1369.50 1379.50 722.50 189.00 115.00 28.00 52.50 265.00 510.00 1205.50 1512.00 9125.00
1952 1604.50 1256.00 1251.50 529.00 293.50 39.00 16.50 32.00 186.72 a 705.50 925.00 1330.00 8169.22
1953 1498.00 1351.50 1092.00 754.50 273.50 42.00 20.50 3.00 186.00 323.00 830.00 1358.00 7732.00
1954 1683.00 956.50 1176.00 446.00 h 414.50 48.50 2.50 22.50 192.93 a 579.38 b 842.00 1353.31 b 7271.12
1955 1638.00 1455.00 1229.00 382.00 172.05 a 47.00 0.00 c 8.00 178.50 469.50 1144.00 1617.68 a 8340.73
1956 1618.50 1499.50 1262.50 740.50 287.00 36.21 a 14.00 34.50 231.00 283.50 954.50 1307.50 8269.21
1957 1734.00 1264.50 1086.50 583.50 276.00 49.50 0.00 22.00 230.50 566.50 969.00 1263.00 8045.00
1958 1351.50 1426.00 1035.50 556.00 219.50 168.00 24.50 42.50 138.00 402.00 897.50 1560.50 7821.50
1959 1727.00 1385.50 1025.50 567.50 195.50 49.00 14.00 3.00 174.50 666.50 1196.50 1115.50 8120.00
1960 1468.88 a 1337.50 1367.10 a 569.00 243.00 75.00 15.00 8.50 197.00 486.00 870.00 1435.00 8071.98
1961 1558.50 1121.50 957.50 750.50 315.00 54.00 3.00 10.00 214.00 436.00 932.50 1471.50 7824.00
1962 1729.00 1406.00 1175.50 645.00 164.50 56.00 14.50 11.00 242.00 427.50 846.50 1382.50 8100.00
1963 1880.00 1427.50 934.00 497.00 292.50 41.50 0.50 34.50 117.50 207.50 768.00 1700.50 7901.00
1964 1380.00 1174.00 1149.00 514.00 149.00 63.50 1.00 59.00 211.00 500.00 872.50 1568.50 7641.50
1965 1706.00 1489.00 1405.85 a 669.50 168.50 17.00 9.00 44.50 334.50 453.00 949.50 1154.00 8400.35
1966 1918.00 1382.00 914.00 684.50 370.50 48.00 3.50 54.50 207.00 524.50 1008.50 1411.00 8526.00
1967 1520.50 1531.50 1055.50 580.50 402.00 28.00 31.00 60.00 173.50 541.50 1010.00 1329.00 8263.00
1968 1586.50 1464.00 799.00 454.00 347.50 68.50 21.50 42.00 176.50 446.00 920.50 1471.00 7797.00
1969 1717.50 1247.00 1262.50 490.50 224.00 162.00 11.50 1.50 0.00 z 595.00 966.50 1380.00 8058.00
1970 1835.00 1376.50 1237.50 606.00 252.77 e 42.50 8.50 16.53 a 220.00 489.28 a 998.00 1450.00 8532.59
1971 1819.00 1351.00 1182.50 554.50 325.50 a 22.50 27.00 47.00 180.00 353.50 952.00 1424.00 8238.50
1972 1808.50 1551.50 1201.50 696.50 184.00 77.50 30.00 55.00 210.00 622.50 971.50 1616.00 9024.50
1973 1496.50 1229.00 779.00 613.50 333.50 19.50 4.00 12.50 216.00 328.50 907.50 1474.50 7414.00
1974 1598.00 1360.00 1075.00 543.50 334.00 86.00 0.00 48.50 268.00 459.50 919.00 1243.00 7934.50
1975 1546.50 1336.50 1297.00 783.50 196.00 64.00 22.50 16.00 265.50 401.50 845.00 1387.00 8161.00
1976 1674.00 1108.00 1015.00 447.50 252.00 13.00 3.50 22.00 196.00 663.50 1145.50 1696.98 b 8236.98
1977 2008.50 1221.00 834.00 369.00 68.50 28.50 0.00 35.00 131.50 535.50 977.50 1514.00 7723.00
1978 1814.02 a 1564.00 1127.50 617.50 216.50 55.50 12.50 13.50 112.50 485.50 1007.50 1580.50 8607.02
1979 1945.00 1563.50 1140.50 676.50 347.00 59.00 5.00 44.00 139.00 550.50 977.00 1210.00 8657.00
1980 1583.00 1454.50 1200.00 501.50 194.78 a 46.50 3.00 8.50 184.00 616.50 850.00 1399.50 8041.78
1981 1452.50 1176.50 877.00 467.50 272.50 36.00 11.00 18.00 197.00 573.50 830.00 1455.50 7367.00
1982 1931.00 1384.50 1149.00 682.00 132.50 116.50 2.00 29.50 193.50 443.50 1012.00 1211.00 8287.00
1983 1408.00 1098.00 960.50 716.00 337.00 63.00 7.00 0.00 179.50 493.00 916.00 1874.50 8052.50
1984 1623.00 1063.50 1232.50 556.00 289.50 7.00 13.50 14.50 249.50 396.50 927.00 1405.50 7778.00
1985 1659.50 1375.50 885.00 420.00 113.50 118.50 3.00 38.50 241.50 531.50 1191.50 1776.50 8354.50
1986 1482.50 1391.50 945.00 419.00 195.00 34.50 4.00 55.00 176.50 481.50 1067.50 1287.00 7539.00
1987 1343.00 954.00 817.50 368.00 142.00 12.00 4.50 36.50 129.50 628.00 804.50 1219.50 6459.00
1988 1690.53 a 1487.50 959.50 555.50 94.50 12.50 2.50 21.50 119.00 656.50 930.50 1383.50 7913.53
1989 1340.50 1540.00 1179.00 600.50 252.50 77.00 0.00 8.00 173.00 452.50 1064.50 1673.50 8361.00
1990 1184.50 1171.50 875.00 546.00 296.50 36.00 8.50 10.50 134.00 508.00 792.50 1469.00 7032.00
1991 1607.00 1147.00 949.50 455.00 202.50 0.00 12.50 6.00 221.50 536.50 1209.00 1344.50 7691.00
1992 1326.50 1051.50 1012.50 645.50 179.50 75.00 42.50 71.50 166.00 529.50 987.50 1319.50 7407.00
1993 1531.00 1326.50 1121.00 603.00 237.50 67.50 0.00 11.00 285.00 552.00 1012.50 1336.50 8083.50
1994 1842.50 1462.50 958.00 553.00 270.50 55.50 20.00 66.50 131.50 405.00 845.50 1265.50 7876.00
1995 1565.50 1357.00 1029.00 765.50 375.00 63.00 15.50 3.00 262.50 549.73 a 1206.00 1529.50 8721.23
1996 1787.50 979.00 j 1302.00 794.50 395.00 85.00 26.00 17.50 212.50 543.50 1232.50 1603.00 7999.00
1997 1736.50 1302.50 1142.50 719.50 458.00 30.00 57.00 58.50 159.00 541.00 1126.50 1215.50 8546.50
1998 1479.00 957.00 1077.00 494.50 139.50 140.50 4.00 2.00 101.50 486.00 883.50 1276.00 7040.50
1999 1718.95 a 1094.00 1050.50 532.00 212.00 116.00 4.98 c 16.00 243.10 a 587.50 775.00 1323.00 7673.04
2000 1639.00 1168.00 821.00 633.50 251.50 110.50 25.50 10.00 218.57 b 439.50 1027.00 1825.00 8169.07
2001 1482.50 1539.46 b 1218.50 597.50 262.00 109.00 17.00 18.50 238.00 573.00 623.00 1190.00 7868.46
2002 1331.50 1125.50 1312.50 611.00 447.00 60.50 2.50 20.50 179.48 a 733.00 1048.50 1291.50 8163.48
2003 1620.50 1458.50 925.00 h 624.50 317.00 92.50 16.00 11.00 217.00 536.50 1018.50 1301.50 7213.50
2004 1716.50 1346.50 982.00 467.50 f 382.00 146.50 26.00 131.00 100.50 532.00 888.50 1394.50 7646.00
2005 1607.00 1164.50 907.50 g 500.00 371.00 8.50 18.00 37.00 127.00 491.00 938.50 1493.00 6755.50
2006 1190.50 1340.50 d 846.50 f 463.00 293.50 41.50 1.00 2.50 284.50 683.00 924.50 1195.50 6420.00
2007 1464.75 a 1542.50 932.50 645.00 186.50 37.50 14.00 29.50 189.50 427.50 985.00 1574.50 8028.75
2008 1669.00 1558.00 1251.00 720.50 405.00 62.50 3.50 35.50 160.50 574.50 963.50 1695.50 9099.00
2009 1909.50 1310.50 1141.00 634.50 309.00 147.50 60.50 77.00 107.00 727.50 777.50 1536.50 8738.00
2010 1701.50 1409.00 894.50 443.50 301.50 69.50 3.50 16.50 270.50 477.50 950.50 1612.00 8150.00
2011 1755.12 a 1380.50 1234.50 697.50 362.50 78.50 2.50 14.50 255.00 457.50 858.00 1271.00 8367.12
2012 1414.12 a 1155.50 574.03 b 565.71 b 212.50 58.50 0.00 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3980.37
Period of Record Statistics
MEAN 1624.66 1346.19 1094.81 606.65 274.76 69.16 15.00 31.29 196.22 510.36 970.84 1439.21 8187.27
S.D. 199.76 174.74 171.40 114.17 95.55 43.14 14.34 25.70 57.10 110.78 124.75 176.75 594.24
SKEW 0.00 0.26 -0.39 -0.04 0.12 0.93 1.05 1.41 0.28 0.12 0.13 0.32 0.01
MAX 2082.50 2012.00 1418.50 866.00 526.50 185.50 60.50 131.00 363.00 887.50 1232.50 1874.50 9600.00
MIN 1184.50 954.00 574.03 368.00 68.50 0.00 0.00 0.00 81.72 207.50 623.00 1115.50 6459.00
NO YRS 93 92 89 91 93 94 94 91 92 94 94 94 82