WINDOM, MINNESOTA

Monthly Total Heating Degree Days

(219033)

Base Temperature = 65 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1905 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 e 126.00 354.50 i 538.00 m 1252.63 d 1378.63
1906 0.00 z 1199.69 b 0.00 z 0.00 z 248.50 48.21 b 15.50 9.30 a 108.00 0.00 z 0.00 z 0.00 z 1629.21
1907 0.00 z 0.00 z 1016.50 811.67 c 480.00 94.00 1.50 52.18 a 193.45 a 516.50 881.00 1222.50 5269.30
1908 1323.00 1260.00 1016.50 508.50 279.00 95.00 28.00 70.50 108.50 508.50 860.50 1317.50 7375.50
1909 1530.00 1284.00 1096.00 736.00 286.50 65.00 17.00 0.53 b 152.00 542.50 a 846.00 1641.50 8197.04
1910 1566.00 1451.00 596.00 420.00 347.00 108.50 0.50 34.50 144.31 a 381.50 1034.50 1342.00 7425.81
1911 1638.00 1212.00 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 2850.00
1912 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
1913 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3.00 f 191.50 584.50 761.50 1121.50 2659.00
1914 1304.07 a 1547.50 1052.00 610.50 143.00 f 34.00 0.00 46.00 121.50 377.17 a 842.00 1686.00 7620.73
1915 1569.00 1149.50 1222.00 323.00 397.00 127.50 45.50 86.00 175.00 427.00 907.00 1356.77 a 7785.27
1916 1776.62 b 1574.50 1145.00 641.00 274.87 a 137.50 0.00 b 66.50 215.50 590.60 b 988.50 1716.33 e 9126.92
1917 1795.93 a 1628.50 1188.50 709.00 405.21 c 116.50 15.50 b 46.00 195.50 810.13 a 800.56 c 1731.50 9442.84
1918 1877.50 1292.50 812.72 a 664.00 194.02 b 55.00 24.50 15.50 310.50 450.50 230.00 t 0.00 z 5696.73
1919 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
1920 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
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 0.00 z 0.00 z 0.00 z 0.00
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 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
1936 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 612.50 j 1291.00 1291.00
1937 1886.50 1408.40 c 1175.02 e 631.00 200.00 86.50 3.00 0.00 f 161.38 a 576.50 1015.50 1508.67 a 8652.46
1938 1612.00 1289.50 855.00 534.50 326.53 a 46.55 a 0.00 4.50 97.50 290.00 989.50 1318.00 7363.58
1939 1355.50 1494.50 1002.50 625.00 104.00 27.00 0.00 a 24.05 b 10.00 o 484.50 0.00 z 1095.33 a 6212.38
1940 1792.50 1268.00 1190.50 632.07 a 265.50 25.00 12.50 47.53 a 113.79 a 289.73 e 1072.24 a 1248.78 a 7958.15
1941 1432.50 1309.26 a 1067.43 a 431.50 83.24 d 35.77 d 15.50 a 21.50 134.48 a 420.57 a 825.58 d 1164.00 6941.33
1942 1370.50 1248.00 884.10 e 391.00 217.00 h 32.68 b 0.00 z 0.00 z 278.00 467.00 859.82 b 1520.00 7051.10
1943 1730.50 1226.00 1108.54 d 410.00 g 309.43 d 67.78 c 0.00 14.35 d 250.50 467.00 1051.73 d 0.00 z 6225.82
1944 1117.00 0.00 z 0.00 z 450.00 j 172.50 56.50 10.50 46.50 146.90 a 431.50 0.00 z 0.00 z 1981.40
1945 1462.17 a 1210.00 745.00 587.00 374.50 138.00 20.50 18.00 210.50 477.50 975.50 1574.80 a 7793.47
1946 1507.50 1246.50 695.50 368.00 331.00 87.00 2.50 38.50 178.50 454.50 978.50 1298.50 7186.50
1947 1329.38 a 1453.00 1149.00 706.50 364.50 123.50 17.00 1.50 151.50 221.00 1121.00 1418.00 8055.88
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3.50 11.00 95.50 460.50 931.50 1416.50 2918.50
1949 1583.00 1368.00 1070.00 532.50 127.50 15.00 1.50 13.00 193.00 393.81 d 757.50 1338.17 a 7392.98
1950 1806.50 1322.50 1238.50 812.50 344.88 c 62.50 21.00 60.00 111.72 a 352.00 1054.00 1552.00 8738.10
1951 1691.00 1209.00 1423.93 a 704.50 137.00 101.38 a 18.71 b 19.63 a 244.29 b 513.00 1120.50 1532.50 8715.44
1952 1614.00 1135.50 1218.50 513.50 245.93 a 15.50 7.00 11.88 a 137.50 598.62 b 866.00 1303.50 7667.44
1953 1480.50 1198.50 1005.50 700.50 249.50 37.50 8.50 2.50 144.50 312.50 814.50 1349.00 7303.50
1954 1664.00 875.84 c 1132.00 479.50 378.50 48.50 0.00 2.00 124.00 544.00 758.00 1258.50 7264.84
1955 1490.58 a 1399.00 1136.00 317.50 109.50 67.00 0.00 2.00 136.55 a 408.50 1152.32 b 1637.50 7856.46
1956 1638.35 a 1473.50 1190.00 702.00 223.50 17.59 a 14.00 40.00 182.00 283.81 b 957.00 1237.50 7959.25
1957 1682.50 1178.00 1056.00 570.50 283.50 35.69 a 0.00 31.50 222.50 582.50 997.00 1184.72 a 7824.41
1958 1343.33 a 1413.00 1060.72 a 558.50 204.71 b 135.00 9.50 g 37.20 a 126.72 a 406.00 881.50 1493.17 a 7659.85
1959 1667.00 1421.50 973.50 542.00 184.00 23.00 8.27 a 4.13 a 184.50 651.00 b 1166.79 b 1120.65 a 7946.34
1960 1573.50 1433.00 1487.00 569.00 249.50 54.50 9.00 4.00 175.00 422.38 c 850.50 1423.42 a 8250.79
1961 1561.50 1163.50 992.00 725.50 321.00 39.50 0.00 9.00 202.50 431.50 964.00 1508.09 d 7918.09
1962 1675.00 1435.84 c 1275.50 484.50 l 110.00 g 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 769.44 c 1354.50 6510.28
1963 1883.00 1393.50 897.50 481.80 e 0.00 z 0.00 z 0.00 z 14.43 b 94.14 a 186.00 763.00 1642.50 7355.87
1964 1321.50 1138.50 1202.80 a 550.86 a 0.00 z 49.50 0.50 64.38 e 197.00 470.00 893.00 1541.22 a 7429.26
1965 1668.00 0.00 z 0.00 z 0.00 z 107.50 k 1.50 4.00 33.50 341.00 372.50 913.50 1103.50 4437.50
1966 1851.50 1332.50 817.00 712.00 308.50 26.00 0.00 41.00 175.00 440.00 1016.50 1394.50 8114.50
1967 1487.00 1407.00 910.50 532.00 367.50 23.50 27.50 33.00 125.50 513.00 934.50 1311.50 7672.50
1968 1499.50 1399.50 725.50 453.00 339.50 49.00 5.68 a 22.00 136.50 434.00 911.00 1493.00 7468.18
1969 1754.00 1268.00 1366.50 490.00 188.50 124.50 2.00 1.50 112.00 580.50 904.50 1376.00 8168.00
1970 1828.50 1318.00 1228.00 574.00 184.00 15.00 4.50 2.00 180.00 514.50 968.50 1460.50 8277.50
1971 1742.00 1269.50 1088.00 476.00 259.50 13.50 0.00 z 20.50 204.50 417.00 946.50 1483.50 7920.50
1972 1771.50 1559.00 1123.00 722.50 228.50 56.00 29.00 59.50 166.50 588.50 953.00 1594.00 8851.00
1973 1397.00 1154.00 784.00 579.00 275.38 a 16.00 4.00 1.50 154.50 269.50 879.00 1456.50 6970.38
1974 1557.00 1212.50 975.50 490.50 302.00 51.00 1.00 32.00 217.00 401.00 878.00 1278.23 a 7395.73
1975 1452.00 1364.00 1249.50 769.50 148.50 43.00 9.00 2.50 222.00 380.50 880.50 1355.00 7876.00
1976 1552.00 1034.50 991.00 429.00 239.50 18.00 0.50 5.00 150.50 655.50 1108.00 0.00 z 6183.50
1977 1898.50 1122.50 851.50 350.00 39.00 11.00 0.50 37.00 99.50 500.00 1011.00 1510.50 7431.00
1978 1875.00 1506.00 1041.00 607.50 207.00 36.00 7.50 13.50 69.50 443.50 1007.00 1571.00 8384.50
1979 1966.50 1618.00 1205.00 690.00 338.00 38.50 1.00 34.00 107.50 514.00 986.00 1205.00 8703.50
1980 1471.00 1404.50 1099.50 487.50 189.50 11.00 0.00 7.50 99.50 552.50 802.00 1360.50 7485.00
1981 1369.00 1111.50 743.40 e 370.00 214.50 16.00 11.00 19.50 152.50 598.50 812.50 1498.50 6916.90
1982 1958.00 1370.50 1095.00 699.00 194.00 96.50 3.00 36.50 181.00 507.50 1081.50 1263.50 8486.00
1983 1450.00 1127.50 1050.50 750.50 360.50 64.00 0.00 0.00 190.00 552.00 958.50 1957.13 a 8460.63
1984 1593.00 1113.50 1303.50 660.00 321.00 15.50 3.50 9.50 301.50 510.50 953.50 1444.50 8229.50
1985 1716.00 1430.00 922.50 474.50 120.50 90.50 3.50 49.00 262.50 588.50 1298.00 1784.50 8740.00
1986 1495.50 1455.00 978.00 549.00 230.50 21.00 7.50 70.00 182.00 513.50 1145.00 1284.50 7931.50
1987 1362.50 923.00 908.00 413.50 112.50 23.50 12.50 56.00 125.00 682.00 820.00 1305.00 6743.50
1988 1824.00 1613.00 1005.00 617.50 91.00 5.00 5.00 24.50 157.50 682.00 972.00 1388.28 a 8384.78
1989 1282.00 1556.50 1207.50 611.00 264.50 72.00 1.00 9.50 204.50 499.00 1113.00 1716.00 8536.50
1990 1208.00 1201.00 956.50 601.00 314.00 50.50 22.50 13.50 140.50 591.00 903.00 1580.50 7582.00
1991 1716.00 1093.00 1009.00 516.00 244.00 16.50 10.00 20.50 228.00 633.00 1283.50 1354.00 8123.50
1992 1343.00 1132.50 1001.00 745.00 225.50 85.00 79.00 102.50 254.50 571.00 1071.50 1486.50 8097.00
1993 1663.50 1437.50 1218.00 714.00 311.50 160.50 8.50 29.50 319.50 606.00 1080.50 1429.00 8978.00
1994 1933.50 1566.00 971.00 623.00 204.50 19.00 17.00 54.50 143.00 449.50 864.00 1327.00 8172.00
1995 1512.00 1235.50 1024.00 748.00 324.50 60.00 16.00 11.00 247.50 570.00 1186.00 1377.50 8312.00
1996 1751.50 a 1362.50 1253.50 735.50 403.00 63.00 14.00 7.00 237.00 506.00 1252.00 1672.00 9257.00
1997 1759.00 1280.00 1105.00 707.50 375.00 0.00 21.00 13.50 87.00 480.50 1110.50 1197.50 8136.50
1998 1451.50 950.50 1153.50 494.50 95.00 98.50 0.50 0.50 38.00 413.50 856.00 1231.50 6783.50
1999 1621.00 1015.00 952.00 542.00 169.50 55.34 a 1.50 6.00 182.50 531.00 688.00 1231.50 6995.34
2000 1525.00 1026.00 777.00 552.50 177.00 62.00 21.50 7.23 a 151.50 415.00 1107.00 1813.50 7635.23
2001 1388.00 1502.15 a 1190.50 532.50 212.50 50.00 3.00 13.50 164.50 513.50 590.00 1170.25 a 7330.40
2002 1245.00 1070.00 1337.50 557.00 349.50 24.00 1.00 16.50 145.00 747.00 989.50 1183.50 7665.50
2003 1498.00 1345.50 1038.50 538.00 251.50 48.50 1.00 9.50 189.00 443.00 998.50 1189.00 7550.00
2004 1528.00 1211.00 833.50 462.00 235.50 54.50 7.50 41.00 54.00 391.50 771.50 1225.50 6815.50
2005 1435.00 983.50 962.50 374.00 227.50 1.50 5.00 11.50 49.00 428.50 859.50 1447.00 6784.50
2006 1111.50 1266.00 992.50 376.00 200.00 20.00 0.00 0.00 203.00 601.00 865.00 1135.00 6770.00
2007 1453.00 1434.50 823.00 608.50 91.00 8.50 0.00 2.50 114.50 368.00 931.00 1478.18 a 7312.68
2008 1604.00 1476.00 1105.00 628.50 285.56 e 14.50 0.00 1.00 110.00 470.00 932.50 1605.28 a 8232.34
2009 1670.50 1238.50 998.50 567.00 186.50 78.00 10.00 25.00 58.00 697.00 731.50 1553.00 7813.50
2010 1674.00 1326.00 815.50 299.50 206.50 g 1.50 f 0.00 z 0.00 z 0.00 z 424.50 958.00 1632.00 7129.50
2011 1778.00 1397.50 1195.50 659.50 293.00 57.00 0.00 5.00 226.00 454.00 923.50 1271.00 8260.00
2012 1370.00 1174.50 617.50 476.50 143.50 32.50 0.00 41.50 205.50 662.50 932.00 1390.00 7046.00
2013 1541.50 1344.50 855.00 k 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 2886.00
Period of Record Statistics
MEAN 1579.45 1298.22 1041.18 570.70 248.02 52.52 8.80 24.38 167.07 487.79 947.54 1408.26 7858.38
S.D. 197.02 169.40 178.86 124.58 91.19 37.68 12.07 22.50 61.62 114.45 134.40 182.89 647.14
SKEW -0.09 -0.19 -0.18 -0.17 -0.02 0.86 3.01 1.10 0.44 0.04 0.28 0.49 0.21
MAX 1966.50 1628.50 1487.00 812.50 480.00 160.50 79.00 102.50 341.00 810.13 1298.00 1957.13 9442.84
MIN 1111.50 875.84 596.00 299.50 39.00 0.00 0.00 0.00 38.00 186.00 590.00 1095.33 6743.50
NO YRS 85 84 82 80 78 82 80 83 85 85 83 84 68