WINONA, MINNESOTA

Monthly Total Heating Degree Days

(219067)

Base Temperature = 65 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201103
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 1768.00 1425.50 1184.00 691.50 298.63 a 9.50 0.00 15.00 161.00 395.00 942.50 1505.29 e 8395.92
1894 1535.50 1267.54 b 862.00 452.00 199.50 20.69 a 0.00 2.00 113.00 446.50 1066.00 1136.27 e 7101.00
1895 1710.68 a 1471.00 1090.50 390.00 217.00 17.50 30.50 10.00 118.00 676.50 960.54 b 1315.50 8007.72
1896 1482.00 1260.50 1207.00 490.00 124.00 38.50 17.00 27.50 307.00 604.00 1165.50 1181.00 7904.00
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 1412.00 1362.00 834.00 559.00 158.00 72.50 3.00 31.00 195.50 444.50 730.00 1470.95 a 7272.45
1903 1480.00 1374.50 865.50 496.50 163.50 93.50 13.00 68.00 189.00 447.50 995.00 1570.00 7756.00
1904 1743.23 a 1639.02 a 1068.00 644.00 210.00 38.50 13.50 38.50 128.50 445.00 778.00 1379.00 8125.25
1905 1853.00 1582.00 939.50 589.50 318.00 37.50 7.00 5.50 113.50 621.03 a 893.50 1258.94 d 8218.98
1906 1397.50 1355.31 b 1299.00 474.50 294.00 64.82 b 7.48 b 8.50 91.00 538.00 938.50 1346.43 a 7815.04
1907 1684.00 1367.50 0.00 z 783.00 468.00 91.00 3.50 43.50 213.00 543.50 868.50 1245.00 7310.50
1908 1339.00 1208.00 926.50 474.50 211.50 59.50 6.50 0.00 z 76.50 427.00 819.50 1321.00 6869.50
1909 1445.50 1225.50 1088.50 710.50 228.50 43.50 3.50 5.00 151.50 537.00 746.50 1557.00 7742.50
1910 1542.50 1391.00 580.00 359.50 279.00 60.50 0.00 10.00 133.00 347.50 1046.50 1377.50 7127.00
1911 1529.00 1073.00 830.50 547.00 122.50 0.00 a 11.50 34.50 133.50 556.00 1133.00 1159.50 7130.00
1912 2048.50 1429.00 1219.50 422.50 166.00 61.00 13.00 25.00 188.50 420.00 796.50 1162.50 7952.00
1913 1466.50 1361.00 1094.50 448.50 263.50 36.50 4.00 1.50 154.00 487.50 681.00 1040.00 7038.50
1914 1231.00 1428.50 946.02 a 484.50 167.50 33.00 0.00 24.00 115.50 252.00 804.00 1552.00 7038.02
1915 1540.50 1064.50 1080.00 284.00 357.00 100.00 26.00 77.50 136.00 371.50 829.50 1277.50 7144.00
1916 1488.50 1427.00 1051.00 557.50 236.00 92.00 0.00 18.00 206.00 489.50 926.00 1584.50 8076.00
1917 1700.00 1563.00 1077.50 619.00 339.50 109.50 13.00 38.00 187.50 783.50 819.00 1627.00 8876.50
1918 1857.00 1278.50 807.00 624.00 143.00 32.00 11.50 12.50 300.00 411.50 742.50 1074.00 7293.50
1919 1283.50 1209.50 975.00 548.28 a 270.00 35.50 0.00 19.50 79.14 a 516.50 1026.50 1639.50 7602.91
1920 1714.50 1343.50 939.00 695.50 211.00 36.50 8.00 26.00 78.00 296.00 946.00 1229.00 7523.00
1921 1225.50 1077.00 849.50 374.00 195.30 a 27.50 0.50 13.00 75.50 422.50 1046.50 1296.83 a 6603.63
1922 1563.50 1327.50 940.00 548.50 54.00 15.00 12.00 12.00 134.00 379.50 686.00 1373.50 7045.50
1923 1395.50 1480.50 1251.50 591.50 175.50 31.00 1.50 26.50 127.00 530.50 760.50 1021.50 7393.00
1924 1797.50 1261.00 1066.00 541.00 390.50 73.50 25.00 33.00 216.50 261.50 847.00 1612.50 8125.00
1925 1486.50 1137.63 a 851.50 371.00 330.00 50.00 14.00 3.50 78.00 761.00 919.50 1493.00 7495.63
1926 1451.50 1073.00 1177.50 621.00 142.00 71.50 7.00 1.00 184.00 516.50 1030.50 1496.50 7772.00
1927 1544.00 1065.00 0.00 z 532.50 0.00 z 0.00 z 0.00 z 0.00 z 131.00 f 339.97 a 865.00 1624.50 5970.97
1928 1320.00 1150.00 897.50 574.62 d 81.00 40.50 6.72 a 18.00 201.50 416.50 798.50 1150.00 6654.83
1929 1791.00 1478.30 a 868.50 465.50 319.00 42.50 2.30 d 12.50 124.00 i 441.00 1043.40 e 1380.50 7844.49
1930 1772.34 b 1006.00 947.00 422.50 0.00 z 12.00 0.00 z 0.00 z 0.00 z 513.50 754.50 1264.80 a 6692.64
1931 1235.02 c 889.78 a 977.50 428.50 259.50 9.50 0.00 22.50 57.50 274.19 b 629.00 973.50 5756.49
1932 1323.50 1202.50 1217.27 a 504.50 146.50 0.00 1.00 5.00 164.50 521.50 947.59 a 1361.50 7395.35
1933 1117.50 1294.00 982.50 520.00 202.02 a 7.00 0.00 10.00 55.34 a 500.50 905.00 1320.50 6914.36
1934 1171.00 1207.50 1011.50 526.00 76.47 a 3.50 0.00 z 47.00 119.50 284.50 715.00 1436.50 6598.47
1935 1582.03 a 1116.00 874.00 554.50 303.50 86.90 a 0.00 37.00 112.00 441.50 955.00 1354.50 7416.93
1936 1718.50 1753.00 942.50 663.00 63.50 31.50 0.00 0.50 83.00 504.50 912.00 1181.50 7853.50
1937 1681.50 1371.00 1091.50 532.50 149.00 46.50 1.00 0.00 123.50 503.50 934.00 1354.50 7788.50
1938 1451.50 1043.50 697.50 472.00 214.50 13.00 0.00 0.50 86.00 249.00 875.00 1272.50 6375.00
1939 1217.00 1313.50 952.50 560.50 74.00 8.00 0.00 3.00 75.00 433.00 799.50 1068.50 6504.50
1940 1706.00 1190.50 1153.50 550.50 212.50 16.00 4.00 33.00 103.00 295.00 976.00 1243.00 7483.00
1941 1378.50 1292.00 1104.50 306.50 86.00 35.50 1.00 13.00 81.50 391.00 743.00 1097.50 6530.00
1942 1364.50 1221.50 841.50 318.50 254.50 25.86 a 9.00 6.50 249.00 436.50 843.50 1435.50 7006.36
1943 1641.50 1251.50 1151.50 515.50 268.00 45.50 0.52 a 10.50 206.50 470.50 1011.50 985.00 h 6573.02
1944 1131.00 1214.00 1149.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 713.65 d 1383.12 a 5591.27
1945 1540.00 1254.50 689.00 515.50 306.50 108.00 13.00 0.00 z 145.50 473.00 946.00 1553.50 7544.50
1946 1464.50 1288.50 672.00 391.00 271.00 87.00 0.50 40.00 189.50 378.00 881.50 1267.00 6930.50
1947 1380.00 1377.00 1131.00 681.50 355.00 76.50 8.00 0.50 164.48 a 179.00 1017.41 a 1348.50 7718.90
1948 1607.00 1313.50 1025.00 351.50 196.50 14.00 1.00 5.00 83.50 432.00 772.00 1296.50 7097.50
1949 1450.50 1310.30 a 1032.00 465.50 123.50 2.50 0.00 2.00 172.50 296.57 a 778.00 1275.50 6908.86
1950 1570.00 1295.50 1198.00 733.50 210.00 44.50 10.50 30.43 d 64.00 259.00 998.00 1591.33 a 8004.76
1951 1612.00 1258.00 1235.87 a 668.28 a 88.50 35.00 0.00 b 12.50 192.41 a 419.50 1118.50 904.00 j 6640.56
1952 1496.50 1092.16 a 1126.00 483.50 219.00 22.00 1.50 7.50 119.50 584.00 775.00 1209.00 7135.66
1953 1331.45 a 1228.77 b 974.00 669.50 209.00 23.00 0.00 0.00 108.00 236.00 688.50 1206.00 6674.22
1954 1533.00 878.00 1057.00 475.00 337.50 41.00 0.00 3.50 129.50 498.50 807.00 1263.50 7023.50
1955 1484.50 1355.50 1175.00 359.00 135.50 55.86 a 0.00 4.00 136.00 449.50 1092.50 1565.50 7812.86
1956 1555.00 1442.00 1234.00 711.50 273.50 32.00 6.00 24.00 209.00 307.00 928.00 1277.00 7999.00
1957 1692.50 1204.50 1050.50 566.90 a 289.50 39.50 0.00 28.93 a 205.00 420.50 g 907.00 1187.50 7171.83
1958 1339.00 1389.50 1003.00 526.00 202.50 95.00 8.00 33.00 112.00 363.22 a 820.71 b 1543.00 7434.93
1959 1721.00 1470.50 1118.00 555.50 153.45 a 25.00 16.00 7.00 144.50 608.50 1148.50 1080.00 8047.95
1960 1404.00 1280.50 1371.00 561.00 222.50 88.50 17.00 5.50 160.00 470.00 831.00 1399.00 7810.00
1961 1530.00 1120.00 1003.50 745.00 316.00 45.00 2.00 2.00 196.50 406.50 921.50 1457.00 7745.00
1962 1678.50 1366.00 1203.00 670.00 172.50 57.00 20.00 10.50 215.50 403.50 846.50 1363.50 8006.50
1963 1825.50 1440.50 987.00 496.00 306.00 64.04 d 2.00 29.50 118.00 165.00 705.00 1629.50 7768.04
1964 1326.50 1167.50 1100.00 535.00 128.00 63.50 0.00 56.50 193.00 490.50 793.50 1491.00 7345.00
1965 1638.50 1463.00 1327.00 680.50 179.00 18.00 6.41 b 42.00 248.00 443.00 856.00 1097.50 7998.91
1966 1823.50 1369.00 901.50 635.50 377.50 45.00 0.00 22.50 145.50 482.50 903.50 1351.50 8057.50
1967 1457.00 1474.00 1041.50 530.50 371.50 11.50 25.00 47.00 153.50 507.50 963.50 1228.24 b 7810.74
1968 1453.00 1369.00 820.98 a 498.00 338.50 57.50 15.00 38.50 186.00 451.50 877.00 1387.50 7492.48
1969 1682.50 1270.00 1211.00 477.00 216.48 a 162.93 a 4.50 0.50 157.50 b 612.00 877.00 1352.00 8023.41
1970 1796.00 1323.50 1112.79 b 571.00 239.22 a 39.00 2.50 5.88 b 160.50 405.50 934.00 1434.27 a 8024.16
1971 1876.00 1363.50 1159.00 495.50 339.00 28.50 15.50 23.50 164.00 306.50 883.50 1328.50 7983.00
1972 1771.50 1512.00 1180.50 696.00 183.00 77.50 35.50 55.00 183.50 633.50 957.50 1594.50 8880.00
1973 1518.50 1201.00 777.00 654.50 369.50 17.50 1.00 14.00 193.00 307.50 913.00 1476.00 7442.50
1974 1537.50 1381.50 0.00 z 579.00 358.50 93.00 0.50 41.50 290.50 530.00 893.00 1295.00 7000.00
1975 1544.50 1377.00 1334.00 815.50 233.50 88.00 21.50 19.00 308.50 474.50 779.50 1378.50 8374.00
1976 1697.50 1156.50 1069.50 515.00 286.23 a 0.00 z 5.50 29.00 189.00 655.50 0.00 z 1655.92 a 7259.65
1977 2011.68 c 1160.92 b 826.00 358.97 a 74.00 36.00 0.00 31.00 137.50 523.50 959.00 1513.83 a 7632.40
1978 1859.00 1536.50 1148.00 606.50 233.50 44.50 19.00 13.00 133.00 561.00 1001.00 1547.50 8702.50
1979 1987.50 1610.00 1183.50 722.50 339.50 53.79 a 0.50 32.50 118.00 522.50 913.50 1211.00 8694.79
1980 1478.00 1385.00 1142.50 509.00 190.50 46.00 0.00 19.00 185.50 614.50 845.50 1402.00 7817.50
1981 1415.50 1142.50 862.50 447.50 260.00 28.50 0.00 z 2.00 175.18 b 547.00 785.69 a 1424.00 7090.37
1982 1846.50 1340.50 1059.50 662.00 151.00 112.50 0.00 38.50 184.50 470.00 935.00 1177.50 7977.50
1983 1366.00 1071.50 893.00 0.00 z 300.50 44.00 2.00 0.00 z 0.00 z 0.00 z 822.12 d 1756.50 6255.62
1984 1539.48 c 1032.85 c 1128.00 0.00 z 235.50 1.50 4.00 0.00 z 138.00 364.77 a 0.00 z 1325.77 a 5769.86
1985 1559.82 a 1325.50 820.00 372.00 0.00 z 26.50 0.00 15.50 a 0.00 z 0.00 z 0.00 z 1881.00 6000.32
1986 1546.50 1378.50 994.50 409.00 0.00 z 14.50 4.00 53.50 200.50 503.00 1101.00 1293.50 7498.50
1987 1398.00 975.50 840.50 358.50 129.00 14.00 2.50 0.00 z 106.50 528.00 691.00 1061.50 6105.00
1988 1535.57 b 1297.50 867.48 a 426.50 0.00 z 1.00 0.00 10.00 0.00 z 514.50 791.50 1254.97 b 6699.02
1989 1202.50 1372.50 756.50 i 491.00 0.00 z 30.50 0.00 0.00 100.50 345.50 1007.00 1606.00 6155.50
1990 1100.00 1092.00 847.85 a 465.00 228.50 39.00 0.00 9.00 93.50 441.50 706.00 1393.00 6415.35
1991 1547.00 1079.00 853.50 412.00 184.50 0.00 z 6.50 4.50 226.50 541.00 1143.00 1268.00 7265.50
1992 1279.50 1010.50 953.50 600.50 161.00 47.50 22.50 36.50 139.00 446.50 954.00 1297.72 b 6948.72
1993 0.00 z 1274.00 1031.50 588.50 196.50 34.00 0.00 1.50 243.00 513.50 945.00 1227.50 6055.00
1994 1815.00 1403.50 0.00 z 495.50 167.50 15.00 1.00 26.50 64.50 336.00 766.50 1140.00 6231.00
1995 1432.00 1213.50 830.50 642.50 191.50 27.00 8.50 0.00 189.50 428.50 1071.50 1375.00 7410.00
1996 1618.20 a 1262.50 1138.50 604.00 295.00 38.00 0.00 0.00 115.50 392.50 1063.50 1393.00 7920.70
1997 1562.00 1120.00 974.00 532.00 286.50 1.50 7.00 11.50 63.00 401.00 954.00 1093.00 7005.50
1998 1289.17 b 849.50 920.50 351.50 37.00 79.50 0.00 0.00 39.00 336.50 723.50 1065.00 5691.17
1999 1531.92 a 936.44 a 871.00 384.50 105.00 41.50 0.00 3.00 118.50 422.50 609.00 1176.45 a 6199.81
2000 1414.50 976.68 a 664.50 428.50 133.82 a 31.50 3.00 1.50 123.00 309.00 911.00 1694.00 6691.00
2001 1297.00 1330.00 1039.50 371.25 b 140.50 54.50 5.50 0.00 135.00 443.00 451.00 1019.12 c 6286.38
2002 1099.00 925.00 1105.50 504.00 261.50 23.00 0.00 1.50 85.50 590.50 861.00 1119.00 6575.50
2003 1439.00 1261.00 941.00 467.50 185.00 17.50 0.00 0.50 133.00 403.00 861.50 1149.50 6858.50
2004 1531.00 1149.50 811.50 393.00 175.00 47.50 5.50 45.00 52.50 404.50 748.00 1251.00 6614.00
2005 1456.50 1004.00 986.00 355.50 235.50 0.00 0.00 2.00 50.00 370.50 795.00 1375.50 6630.50
2006 1035.00 1170.00 919.50 329.50 202.00 14.00 0.00 0.00 179.50 560.50 765.00 1045.50 6220.50
2007 1297.50 1402.00 824.60 a 512.00 80.00 5.50 0.00 7.00 91.50 291.00 865.00 1405.00 6781.10
2008 1529.00 1388.00 1044.00 517.50 223.00 5.50 0.00 0.00 58.00 394.50 825.50 1490.50 7475.50
2009 1690.50 1105.00 866.00 448.00 149.00 44.00 6.00 13.50 45.50 76.00 z 0.00 z 0.00 z 4367.50
2010 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
2011 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
Period of Record Statistics
MEAN 1525.82 1266.94 1006.25 522.15 219.07 42.15 5.73 17.96 145.37 445.74 878.25 1341.48 7417.85
S.D. 207.31 171.44 158.52 114.23 86.89 30.34 7.68 17.16 59.22 114.07 128.58 182.22 674.92
SKEW 0.07 -0.12 -0.11 0.21 0.20 1.03 1.64 1.02 0.51 0.13 -0.09 0.28 -0.23
MAX 2048.50 1753.00 1371.00 815.50 468.00 162.93 35.50 77.50 308.50 783.50 1165.50 1881.00 8880.00
MIN 1035.00 849.50 580.00 284.00 37.00 0.00 0.00 0.00 39.00 165.00 451.00 973.50 5691.17
NO YRS 111 112 107 109 105 108 107 104 105 107 108 109 87