SPOONER EXP FARM, WISCONSIN

Monthly Total Heating Degree Days

(478027)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201210
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
1894 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1.00 q 0.00 z 196.00 538.00 1183.00 1224.00 3141.00
1895 1774.50 1513.62 b 1262.73 a 508.50 296.00 50.00 64.00 57.00 196.00 763.00 1114.00 1446.67 a 9046.02
1896 1660.00 1478.00 1353.50 669.00 205.00 87.00 49.50 71.00 405.52 a 899.50 1244.00 1479.00 9601.02
1897 1771.00 1338.62 b 1314.92 a 677.00 417.50 204.50 0.00 k 71.50 121.50 485.50 0.00 z 1701.50 8103.53
1898 1415.50 1270.37 a 953.00 677.50 320.33 a 83.00 20.50 31.00 136.00 636.00 1057.50 1717.00 8317.70
1899 1784.50 1648.37 a 1541.00 549.50 301.00 56.00 13.00 24.50 253.00 420.00 488.50 h 1371.00 7961.87
1900 1358.50 1591.50 1283.00 428.50 236.50 40.00 23.77 a 0.00 z 164.50 q 291.40 a 1110.00 c 1413.00 7776.17
1901 1652.82 a 1596.50 1276.17 a 597.78 c 213.50 m 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5123.26
1902 0.00 z 1140.00 h 0.00 z 785.50 249.66 c 167.59 a 11.37 a 81.67 e 0.00 z 0.00 z 474.00 p 1145.00 i 1295.79
1903 1695.70 a 1520.00 1083.00 701.00 295.00 0.00 z 0.00 z 0.00 z 0.00 z 535.86 c 715.50 k 1732.26 b 7562.82
1904 313.00 z 1855.50 1264.50 831.50 309.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1536.50 5797.50
1905 1888.00 1607.50 1039.05 c 735.00 a 429.87 a 79.50 f 16.50 h 15.50 q 146.38 a 751.48 b 999.31 a 1418.00 9014.59
1906 1496.50 1480.23 b 1447.38 b 0.00 z 301.00 f 0.00 z 0.00 z 0.00 z 119.50 g 621.50 1022.00 1498.50 7566.11
1907 1843.00 1440.50 1166.00 910.00 631.50 101.00 26.50 75.50 289.50 669.60 a 1029.50 1370.50 9553.10
1908 1509.50 1353.00 1207.00 610.00 370.00 120.50 30.45 c 75.95 a 124.00 544.50 919.00 1456.00 8319.90
1909 1596.50 1389.00 1199.50 878.50 428.00 91.00 19.00 37.00 268.50 626.50 884.50 1635.50 9053.50
1910 1635.50 1544.00 741.50 528.00 417.00 102.50 11.00 63.50 241.50 486.00 1181.50 1595.00 8547.00
1911 1166.00 j 1323.00 1050.00 658.00 201.50 24.50 55.00 94.55 a 287.00 704.00 1319.50 1340.00 7057.05
1912 2223.22 a 1631.00 1387.50 622.00 285.00 148.50 36.00 126.50 286.50 532.50 941.50 1378.00 9598.22
1913 1721.50 1574.22 a 1390.00 593.00 412.50 91.00 42.50 34.00 275.50 659.00 842.50 1171.00 8806.72
1914 1459.50 1703.50 1211.00 753.00 278.00 137.00 12.50 87.66 b 257.50 409.50 940.50 1622.85 a 8872.50
1915 1669.35 a 1101.50 1148.50 377.00 446.50 174.50 g 71.19 d 137.84 c 232.00 528.50 1006.73 d 1411.00 8130.11
1916 1736.00 1637.00 1357.50 707.50 383.50 179.50 1.60 b 70.50 294.00 613.50 1050.00 a 1730.32 a 9760.92
1917 1868.00 1669.77 b 1246.50 784.00 442.78 a 198.10 a 35.50 99.00 263.28 a 893.00 850.34 a 1827.00 10177.28
1918 2007.25 a 1444.00 967.20 a 727.50 262.98 a 64.50 36.34 b 33.77 c 403.45 a 532.68 a 873.62 a 1200.73 a 8554.03
1919 1421.35 a 1385.48 a 1188.69 b 680.00 c 348.50 38.50 3.62 a 69.00 213.75 b 701.12 a 1193.50 1774.23 a 9017.74
1920 1899.50 1523.50 1109.59 b 875.00 302.00 151.00 48.50 112.00 189.00 390.00 1053.00 1351.00 9004.09
1921 1448.50 1241.50 1038.50 521.00 275.50 62.88 d 3.50 32.00 140.50 470.00 1102.00 1463.50 7799.38
1922 1711.00 1558.00 1146.50 695.50 136.00 72.50 35.00 30.50 175.50 479.00 823.00 1539.00 8401.50
1923 1583.50 1619.00 1442.00 738.50 290.50 52.00 2.50 81.63 a 195.00 c 613.50 874.50 1160.36 b 8653.00
1924 1901.50 1321.00 1180.00 736.50 538.50 161.50 57.50 109.50 328.97 a 357.00 1009.50 1825.00 9526.46
1925 1660.00 1313.00 1047.00 474.00 422.50 110.00 51.00 20.84 b 161.50 906.00 1033.50 1638.00 8837.34
1926 1634.00 1327.85 b 1359.50 716.79 b 194.00 165.50 36.00 39.50 334.14 a 633.00 1213.50 1637.00 9290.77
1927 1729.50 1282.50 1016.00 640.00 418.50 183.50 50.00 115.50 226.50 516.50 1119.00 1805.00 9102.50
1928 1610.00 1396.50 1213.00 866.00 293.00 197.00 30.00 64.50 309.00 528.00 915.00 1328.00 8750.00
1929 2056.50 1633.00 1072.00 601.00 423.00 132.00 28.00 62.00 298.50 570.50 1115.00 1516.00 9507.50
1930 1858.00 1172.50 1131.00 545.50 300.00 55.00 18.00 27.00 221.50 595.50 896.00 1404.00 8224.00
1931 1330.00 1010.50 1120.00 561.00 357.50 58.50 21.00 79.00 124.50 408.00 785.00 1141.50 6996.50
1932 1441.00 1438.00 1425.00 670.86 a 302.00 13.00 22.00 23.00 280.50 670.00 1141.00 1619.00 9045.36
1933 1448.00 1566.00 1194.65 d 707.50 263.00 29.00 6.00 60.50 137.00 663.50 1133.00 1648.00 8856.15
1934 1458.50 1497.00 1266.00 718.00 141.57 a 50.50 23.50 113.31 b 297.50 509.95 a 886.00 1725.50 8687.33
1935 1853.00 1252.00 1112.50 700.50 397.50 158.50 0.50 71.00 261.50 599.50 1170.50 1500.50 9077.50
1936 1885.00 1946.50 1181.00 861.21 a 193.50 97.50 2.50 36.00 145.50 692.00 1124.50 1379.00 9544.21
1937 1851.00 1466.00 1296.50 719.00 294.50 100.50 20.67 a 10.50 251.00 715.14 b 1066.00 1562.92 a 9353.72
1938 1672.97 a 1286.00 934.50 625.50 338.00 75.00 8.00 23.25 a 213.50 459.32 a 1038.62 a 1500.40 a 8175.05
1939 1457.00 1617.26 a 1256.03 b 759.00 189.00 73.00 22.22 a 26.50 229.00 593.50 933.00 1202.50 8358.01
1940 1845.02 a 1393.04 a 1424.50 752.50 428.32 a 123.50 45.00 82.15 a 175.34 a 481.00 1156.50 1432.50 9339.36
1941 1588.00 1449.00 1333.50 496.50 190.00 104.50 31.00 72.00 175.50 529.50 935.50 1265.50 8170.50
1942 1445.12 a 1380.00 998.00 474.50 388.50 104.50 59.00 50.52 d 330.00 b 540.50 1016.50 1590.50 8377.63
1943 1799.50 1360.50 1358.50 719.50 358.50 103.50 7.00 35.00 289.50 f 594.50 1182.50 1413.50 8932.50
1944 1286.50 1366.50 1237.50 738.50 222.00 73.00 29.50 27.50 208.50 552.00 813.50 1519.50 8074.50
1945 1714.00 1386.50 820.00 709.50 476.50 235.00 54.50 57.00 289.00 656.00 1042.00 1616.50 9056.50
1946 1582.00 1444.00 798.50 575.00 401.50 155.50 34.50 88.87 a 265.00 515.00 1025.00 0.00 z 6884.87
1947 0.00 z 107.00 z 1213.50 760.00 467.50 158.50 35.50 15.50 259.50 269.00 1210.00 1463.00 5852.00
1948 1847.50 1528.00 1251.76 b 530.50 331.18 a 85.00 20.00 26.35 a 158.79 a 551.36 c 939.00 1500.50 8769.94
1949 1526.50 1455.00 1184.50 619.00 257.62 b 1.50 r 12.40 a 49.08 a 289.44 c 445.50 949.04 d 1449.25 a 8237.34
1950 1810.40 a 1428.50 1347.50 930.50 391.63 a 93.50 41.85 a 125.60 b 201.96 b 451.05 a 1156.00 1686.73 c 9665.23
1951 1759.50 1399.00 1375.88 a 736.00 228.00 155.00 37.00 107.50 340.34 a 591.07 a 1268.00 1542.50 9539.79
1952 1635.50 1277.00 1288.50 554.00 342.00 60.00 31.00 a 68.50 228.62 a 746.00 967.24 a 1341.27 a 8539.63
1953 1537.08 a 1420.50 1153.50 794.46 b 316.50 72.50 33.58 a 10.50 242.22 c 361.00 864.31 a 1413.00 8219.16
1954 1742.50 1046.50 1250.00 643.50 501.00 76.50 14.50 53.00 259.66 a 630.00 910.00 1373.50 8500.66
1955 1694.15 a 1506.00 1312.50 428.00 201.00 88.00 1.50 21.00 222.41 a 530.50 1212.00 1688.47 a 8905.53
1956 1614.50 1536.50 1287.00 772.50 345.50 56.50 53.00 53.00 306.00 364.00 1013.50 1411.50 8813.50
1957 1839.00 1383.00 1220.50 634.50 357.50 91.00 4.00 46.00 289.50 605.50 843.00 f 1386.50 7857.00
1958 1450.00 1507.50 1129.00 592.00 307.50 204.50 45.98 a 87.00 187.50 495.50 953.00 1692.50 8651.98
1959 1846.50 1482.00 1105.00 664.00 254.50 75.50 24.50 10.00 213.50 684.00 1294.00 1220.00 8873.50
1960 1587.50 1432.00 1436.50 616.00 328.00 125.00 30.50 24.00 251.00 543.00 917.00 1555.17 a 8845.67
1961 1662.50 1174.50 987.35 a 787.00 401.00 93.00 23.50 25.66 b 276.50 510.00 999.50 1532.00 8472.51
1962 1799.00 1468.50 1132.00 723.21 b 241.00 117.00 48.50 52.50 304.50 511.50 939.00 1491.50 8828.21
1963 1951.50 1549.00 1057.00 571.50 376.65 a 83.50 23.50 74.50 189.00 284.00 841.00 1741.00 8742.15
1964 1437.37 a 1349.00 1242.58 a 596.00 225.55 b 116.50 15.00 115.50 280.50 577.50 960.50 1697.52 b 8613.52
1965 1825.00 1572.50 1453.00 745.00 c 215.50 90.00 44.00 74.40 a 417.00 531.00 1056.43 b 1266.00 9289.83
1966 1984.50 1431.00 1024.50 752.50 449.50 75.00 a 12.83 b 89.68 c 255.00 578.00 1068.50 1519.50 9240.51
1967 1599.00 1587.00 1134.50 656.50 477.50 63.50 54.00 113.15 a 238.00 620.50 1102.00 1425.50 9071.15
1968 1683.00 1549.50 852.50 c 552.50 404.55 a 120.00 48.64 b 82.50 215.89 b 477.40 a 1009.00 1529.50 8524.98
1969 1732.50 1307.04 c 1301.50 571.11 c 291.50 234.00 48.00 15.50 234.83 a 686.50 1031.00 871.50 k 7453.48
1970 1885.50 1466.50 1323.50 673.50 333.50 61.50 15.00 30.50 237.50 504.27 a 1057.00 1492.00 9080.27
1971 1887.00 1393.50 1263.50 625.50 408.00 45.00 62.00 88.50 224.50 400.00 995.50 1507.00 8900.00
1972 1885.66 b 1652.00 1302.00 777.50 245.00 117.50 54.50 80.00 281.00 698.50 1026.00 1676.50 9796.16
1973 1573.00 1313.00 845.00 678.50 400.50 42.50 16.50 22.50 259.50 412.00 981.50 1564.50 8109.00
1974 1701.00 1410.50 1167.00 640.00 309.00 i 137.22 c 9.82 a 108.00 386.90 a 572.50 955.00 1334.00 8421.94
1975 1630.50 1365.00 1365.50 840.00 258.50 121.50 29.50 48.00 318.00 482.64 b 892.00 1506.00 8857.14
1976 1769.00 1172.50 1160.50 528.00 322.00 28.00 13.50 63.00 275.50 750.00 1226.50 1831.50 9140.00
1977 2015.00 1302.00 897.50 455.50 109.00 78.50 11.50 122.00 235.00 590.00 1022.50 1569.50 8408.00
1978 1838.50 1574.00 1216.75 a 667.50 231.00 120.50 45.50 39.00 168.50 559.00 1089.00 1677.00 9226.25
1979 2002.50 1588.00 1198.00 739.00 436.00 107.50 22.00 62.50 188.50 635.00 1042.00 1346.50 9367.50
1980 1694.50 1521.50 1292.00 566.00 227.50 99.31 a 18.50 25.00 257.07 a 687.50 962.00 1527.50 8878.38
1981 1564.00 1235.50 990.50 580.00 359.71 b 75.50 26.00 29.50 266.00 640.00 854.50 1504.00 8125.21
1982 2018.50 1447.50 1202.50 736.00 160.00 176.50 8.00 90.00 247.00 501.00 1089.00 1301.50 8977.50
1983 1503.00 1128.50 1017.50 760.00 407.50 97.50 15.00 3.50 218.50 575.00 988.00 1903.50 8617.50
1984 1701.00 1105.00 1272.50 573.00 366.50 31.50 28.00 22.00 310.00 450.50 996.50 1482.00 8338.50
1985 1713.50 1424.50 961.52 a 499.00 170.50 175.00 19.00 86.50 281.00 573.00 1228.00 1845.50 8977.02
1986 1540.50 1439.00 1003.50 472.00 239.50 69.50 9.00 87.00 237.50 565.50 1104.00 1379.00 8146.00
1987 1444.00 1025.00 872.00 427.00 204.50 39.50 12.50 63.50 153.50 715.50 881.00 1294.50 7132.50
1988 1758.50 1582.50 1078.50 587.50 151.00 38.50 13.50 40.00 175.00 712.50 972.00 1505.50 8615.00
1989 1443.00 1599.00 1283.50 673.00 287.50 107.00 0.50 25.00 208.50 519.00 0.00 z 1787.00 7933.00
1990 1290.00 1302.50 969.00 608.00 358.50 53.00 27.50 54.50 189.00 581.00 858.00 1512.50 7803.50
1991 1722.00 1225.00 1005.50 520.00 221.50 22.00 32.50 16.00 270.00 619.00 1229.50 1452.00 8335.00
1992 1444.50 1153.00 1040.00 725.00 235.00 119.50 84.50 122.50 228.50 593.00 1051.00 1410.50 8207.00
1993 1578.50 1349.00 1114.50 696.50 310.00 139.50 23.00 50.50 363.00 633.50 1107.50 1413.50 8779.00
1994 1987.00 1519.50 1017.50 649.50 247.50 55.50 31.00 85.00 154.00 459.00 887.00 1312.00 8404.50
1995 1524.00 1373.00 1030.00 788.00 329.50 57.50 19.50 2.50 272.50 569.50 1245.50 1554.50 8766.00
1996 1836.00 1455.50 1326.00 780.50 354.00 62.00 29.00 17.00 208.50 524.50 1217.00 1576.00 9386.00
1997 1733.50 1280.50 1127.50 682.00 424.00 31.00 52.00 78.00 161.00 494.00 1098.50 1223.50 8385.50
1998 1452.50 946.50 1037.50 479.50 112.50 118.50 6.00 5.50 96.00 449.50 861.50 1281.00 6846.50
1999 1658.50 1104.00 1000.00 512.00 179.50 82.50 2.00 21.50 227.50 539.00 750.00 1305.00 7381.50
2000 1591.00 1153.50 797.00 639.50 228.50 105.50 21.50 13.00 218.50 404.50 991.50 1800.00 7964.00
2001 1457.00 1503.50 1166.50 554.00 218.00 90.50 17.00 14.00 229.00 558.00 628.50 1205.00 7641.00
2002 1310.00 1079.50 1315.00 661.50 457.00 72.50 2.50 21.50 158.00 744.00 1024.00 1269.00 8114.50
2003 1616.00 1461.50 1117.00 601.50 298.50 74.00 22.00 6.50 204.50 525.00 1010.00 1296.00 8232.50
2004 1738.50 1257.50 998.00 569.50 344.00 127.00 30.00 114.00 92.50 481.50 852.50 1431.00 8036.00
2005 1619.50 1148.00 1134.00 471.00 346.50 8.00 12.50 21.50 89.00 460.00 894.50 1399.50 7604.00
2006 1170.00 1325.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 7.50 271.00 0.00 z 912.50 1194.00 4880.00
2007 1501.00 1572.50 988.00 655.00 199.50 33.50 18.50 28.50 204.50 452.00 986.50 1572.50 8212.00
2008 1653.50 1549.00 1257.50 728.00 388.00 81.00 9.50 27.00 190.50 590.50 983.50 1709.00 9167.00
2009 1980.00 1339.50 1121.50 640.50 318.50 144.50 0.00 z 83.50 95.50 757.00 798.50 1588.50 8867.50
2010 1724.00 1409.50 875.00 446.50 281.00 87.50 0.50 19.50 314.50 519.00 988.50 1588.00 8253.50
2011 1786.50 1398.00 1231.00 680.00 354.50 82.00 2.00 13.50 251.50 464.50 885.00 1305.00 8453.50
2012 1450.00 1173.50 664.50 595.00 197.50 53.00 0.50 44.50 263.50 244.00 t 0.00 z 0.00 z 4442.00
Period of Record Statistics
MEAN 1674.50 1409.97 1158.42 651.72 315.24 97.15 26.24 55.68 235.69 562.16 1014.99 1492.92 8689.65
S.D. 192.79 174.79 169.98 114.29 97.62 48.88 18.10 34.71 67.16 118.79 130.33 174.58 617.41
SKEW 0.02 -0.17 -0.39 -0.03 0.22 0.67 0.65 0.40 0.14 0.30 0.06 0.15 -0.44
MAX 2223.22 1946.50 1541.00 930.50 631.50 235.00 84.50 137.84 417.00 906.00 1319.50 1903.50 10177.28
MIN 1170.00 946.50 664.50 377.00 109.00 8.00 0.50 2.50 89.00 269.00 628.50 1141.50 6846.50
NO YRS 114 116 116 116 114 110 110 112 112 114 110 114 96