WENTWORTH 2 WNW, SOUTH DAKOTA

Monthly Total Heating Degree Days

(399042)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200609
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 1819.00 1607.50 0.00 z 821.00 380.50 26.50 0.00 68.64 c 0.00 z 663.92 a 1178.00 1688.00 8253.06
1894 1899.50 1556.00 1045.22 a 602.00 272.80 a 41.00 7.20 c 11.88 a 0.00 z 0.00 z 0.00 z 603.50 r 5435.60
1895 1873.50 1506.50 1102.00 330.00 270.50 84.00 21.00 19.50 171.50 675.00 1097.00 1412.50 8563.00
1896 1495.50 1210.50 1339.50 541.50 185.00 71.00 27.50 41.50 276.00 652.50 1462.76 a 1315.50 8618.76
1897 1814.50 1451.50 1358.00 608.50 300.00 153.50 4.50 81.00 98.50 463.89 c 1126.61 b 1556.20 a 9016.70
1898 1350.50 1235.50 1049.35 a 579.50 330.15 a 55.00 12.50 15.50 167.68 b 718.50 1135.50 1523.13 a 8172.81
1899 1515.90 a 1679.50 1488.50 627.00 286.50 39.50 11.88 a 14.50 262.76 a 524.42 a 845.17 a 928.50 m 7295.63
1900 840.00 o 1560.22 a 1203.12 b 278.00 p 60.50 o 60.00 a 15.50 0.50 195.00 274.87 a 1135.86 a 1317.50 a 5762.57
1901 1429.00 1394.08 b 1043.31 b 528.10 a 257.41 c 69.50 0.00 2.50 210.00 a 436.07 a 1000.34 a 1525.00 7895.31
1902 1454.93 a 1367.50 917.08 a 626.50 190.50 145.34 a 5.50 32.50 236.50 457.00 948.00 1686.92 a 8068.28
1903 1557.00 1515.50 1034.50 572.50 260.29 b 96.00 25.00 63.00 260.50 435.00 1101.43 b 1584.00 8504.72
1904 1766.00 1674.00 1085.00 713.50 255.50 135.50 45.00 32.50 155.50 431.00 747.50 1439.00 8480.00
1905 1798.00 1538.50 838.00 611.00 359.00 81.00 18.00 0.00 68.00 625.00 861.00 1263.00 8060.50
1906 1333.50 1252.00 1351.50 473.28 a 271.50 92.50 27.90 a 22.50 114.00 555.00 1032.50 1388.00 7914.18
1907 1824.50 1271.00 942.00 875.17 a 543.50 113.50 2.58 a 30.47 b 220.00 505.30 a 926.00 1009.00 f 7254.02
1908 1369.68 a 1359.50 1062.50 522.50 326.00 f 107.00 22.00 44.00 120.00 a 592.62 a 887.00 1351.50 7438.30
1909 1599.00 1313.50 1123.00 788.28 a 307.00 65.69 a 23.25 a 16.00 158.50 558.00 a 924.50 1703.50 8580.21
1910 1610.45 a 1536.50 575.57 a 469.66 a 381.82 a 101.00 g 2.77 c 36.17 a 202.50 374.50 0.00 z 1425.48 a 6615.41
1911 1695.18 a 1277.63 a 853.50 636.00 174.78 b 12.00 21.00 64.50 184.00 648.00 1243.00 1379.50 8189.09
1912 2035.50 1399.00 1302.00 521.00 253.00 151.11 c 21.50 25.00 326.50 490.83 a 829.14 a 1295.80 a 8650.38
1913 1541.22 a 1402.00 1187.50 587.88 d 362.18 a 65.17 a 5.17 a 2.07 a 221.00 665.00 780.00 b 1151.50 7970.69
1914 1369.00 0.00 z 1077.50 611.00 245.50 41.00 0.50 60.00 142.50 381.82 a 860.17 a 1688.98 a 6477.97
1915 1587.50 1161.50 1250.50 325.71 b 0.00 z 144.50 60.00 86.50 201.50 422.00 877.50 1355.00 7472.21
1916 1900.50 1538.55 a 1105.48 c 648.00 289.50 132.00 0.00 28.00 215.00 571.36 b 971.90 a 1686.92 a 9087.21
1917 1638.19 b 1612.00 1193.50 b 720.50 370.97 a 112.00 14.00 29.50 185.00 803.33 b 751.50 286.50 z 7430.48
1918 1917.19 b 1311.00 797.50 695.17 a 221.00 55.50 21.00 16.50 292.50 450.50 926.00 1230.50 7934.36
1919 1258.00 1360.50 1081.38 a 656.90 a 333.77 a 84.50 0.00 21.00 137.00 745.00 1192.50 1618.50 8489.05
1920 1632.00 1365.50 1090.17 d 866.00 284.50 97.00 19.67 e 34.00 126.21 a 316.00 1029.50 1380.00 8240.55
1921 1313.50 1084.00 923.00 512.59 a 275.00 27.41 a 11.00 35.00 144.50 443.00 1175.00 1312.85 a 7256.85
1922 1625.36 b 1623.48 a 1048.00 565.50 190.81 b 21.72 a 24.80 a 4.00 j 114.64 b 433.48 a 881.38 a 1565.50 e 8094.68
1923 1385.91 b 1438.50 1259.12 a 628.45 a 318.86 c 91.55 a 7.23 a 35.65 a 126.50 603.93 d 812.50 1162.50 7870.70
1924 1782.50 1267.00 1169.73 a 625.50 469.13 a 118.50 25.32 a 23.00 263.00 363.22 a 983.50 1664.46 e 8754.86
1925 1604.25 c 1224.00 790.00 f 94.00 w 78.00 t 65.00 c 21.50 7.23 a 120.50 908.62 b 983.50 1498.85 a 6433.45
1926 1576.41 d 1127.00 1128.92 a 620.89 b 180.83 d 110.00 8.50 10.52 c 320.77 d 569.50 1192.76 a 1523.50 8369.60
1927 1495.00 1192.50 992.00 624.00 399.50 147.00 31.00 56.12 b 232.50 0.00 z 798.50 j 1881.50 7051.12
1928 1487.00 1242.17 b 948.50 796.50 211.50 140.50 4.65 a 39.00 223.93 b 553.50 962.00 1231.00 7840.25
1929 1971.08 a 1632.81 a 952.45 b 623.04 b 377.34 b 107.59 a 6.95 b 3.58 e 319.66 a 552.12 b 1178.04 b 1455.40 b 9180.05
1930 1921.47 b 975.69 b 1036.90 b 537.00 349.50 92.78 c 9.50 q 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4913.33
1931 0.00 z 0.00 z 785.00 g 513.50 386.47 a 37.50 b 6.00 34.74 b 111.67 c 417.97 b 0.00 z 1204.83 e 2712.67
1932 1600.12 a 0.00 z 1335.67 b 587.07 a 190.00 h 9.50 i 20.50 24.00 235.56 c 447.50 g 817.50 h 1188.50 j 3802.91
1933 1274.00 1446.67 a 851.00 f 663.10 a 338.33 b 20.50 0.00 z 0.00 z 65.50 l 609.48 c 0.00 z 1402.46 d 5754.54
1934 1304.21 c 1158.00 1048.83 d 357.50 m 67.00 f 15.50 8.00 43.50 0.00 z 298.00 i 604.50 f 784.00 n 3578.05
1935 1608.90 a 0.00 z 622.50 k 690.52 a 238.00 l 117.50 0.00 b 0.00 z 0.00 z 0.00 z 527.50 p 1439.50 3856.42
1936 1936.47 a 1960.29 c 1018.00 757.76 a 129.50 78.00 0.00 2.07 a 0.00 z 548.50 1008.00 1350.50 8789.08
1937 1339.00 j 1438.50 1098.95 a 630.54 b 174.00 92.50 3.50 0.00 a 140.00 551.50 1013.00 1498.50 6640.99
1938 1630.00 1308.00 859.50 514.66 a 282.10 a 37.00 0.00 z 0.00 z 0.00 z 79.00 y 701.00 i 1298.38 a 5929.64
1939 1306.00 1524.50 1005.50 570.50 75.50 26.50 0.00 10.00 118.00 g 392.50 k 830.36 b 1072.50 6421.36
1940 1835.00 1322.00 1190.00 654.00 262.00 32.50 5.00 40.50 111.21 a 284.00 1142.50 1290.50 8169.21
1941 1493.50 1369.00 1130.00 466.00 131.50 70.00 30.00 7.00 158.50 452.00 886.50 1173.50 7367.50
1942 1274.44 d 1233.50 952.50 391.50 362.50 56.00 7.50 25.50 297.50 503.50 948.50 1528.50 7581.44
1943 1804.50 1180.50 1247.00 560.00 379.50 96.00 2.50 19.00 263.00 513.00 1047.00 1291.50 8403.50
1944 1203.00 1346.00 1266.00 725.00 175.50 74.50 4.00 53.50 171.00 466.50 956.50 1402.50 7844.00
1945 1511.00 1220.50 835.50 668.50 416.50 192.00 28.00 20.50 255.00 483.50 1070.50 1694.50 8396.00
1946 1504.50 1266.00 737.00 364.00 324.50 89.48 a 4.50 54.00 218.00 536.00 1075.50 1348.50 7521.98
1947 1313.00 1431.50 1122.50 702.00 372.50 103.00 16.05 c 0.50 185.50 292.43 a 1182.50 1511.00 8232.49
1948 1698.00 1462.50 1152.00 431.50 283.00 72.50 3.50 28.00 77.50 491.00 983.00 1419.50 8102.00
1949 1693.00 1427.00 1074.50 536.50 153.00 29.50 2.50 11.50 232.00 464.50 736.50 1386.00 7746.50
1950 1837.27 a 1275.00 1263.50 811.00 382.16 b 64.00 22.00 47.50 143.00 400.00 1080.00 1509.00 8834.42
1951 1644.55 a 1176.50 1412.50 739.50 217.00 150.00 30.50 31.50 294.83 a 570.00 848.00 g 1594.00 7860.88
1952 1614.50 1187.50 1275.50 533.50 249.50 22.50 0.00 v 2.00 r 148.97 a 605.50 956.90 a 1363.00 7957.36
1953 1510.73 a 1250.50 1057.00 789.00 304.83 a 45.00 a 7.23 a 0.57 d 130.00 f 321.50 827.00 1386.22 a 7499.59
1954 1721.50 869.00 1158.00 508.50 389.00 50.19 d 1.50 4.50 174.31 a 615.00 775.00 1312.50 7579.00
1955 1446.15 a 1458.50 1134.50 323.04 b 117.00 92.00 0.00 9.00 183.00 441.50 1245.00 1667.28 a 8116.97
1956 1683.30 a 1510.07 a 1240.50 742.76 a 230.95 a 14.48 a 7.50 23.50 152.78 c 282.74 b 961.55 a 1233.50 8083.63
1957 1736.00 1205.50 1090.00 523.00 f 318.50 53.50 0.00 20.00 203.00 529.00 950.00 1129.50 7235.00
1958 1282.00 1341.93 a 1080.50 543.62 a 164.62 b 122.00 16.00 21.50 101.00 390.50 904.50 1479.00 7447.17
1959 1674.00 1434.72 c 922.00 542.50 238.50 32.00 4.50 0.00 192.50 642.50 1219.00 1116.50 8018.72
1960 1587.00 1452.00 1452.87 a 578.50 249.00 53.50 3.50 9.00 200.00 450.00 883.00 1419.50 8337.87
1961 1588.00 1194.00 919.00 731.90 a 342.00 37.00 0.00 4.50 245.00 441.00 996.00 1569.00 8067.40
1962 1641.50 1378.00 1298.00 628.50 142.50 62.59 a 24.50 13.50 218.50 428.00 816.50 1310.50 7962.59
1963 1812.00 1264.00 825.50 467.00 241.28 a 19.00 0.00 a 25.32 a 83.50 203.50 830.00 1624.73 c 7395.83
1964 1329.50 1156.00 1233.00 534.50 177.00 41.50 0.00 73.00 209.50 489.28 a 963.00 1570.00 7776.28
1965 1687.00 1398.50 1380.00 580.50 168.50 25.00 3.50 29.00 404.50 384.50 954.50 1153.00 8168.50
1966 1802.50 1352.50 837.00 729.00 306.00 50.00 0.00 53.00 193.00 490.00 1034.50 1398.00 8245.50
1967 1455.50 1398.00 896.50 563.00 376.00 50.50 41.00 34.50 157.50 522.00 972.00 1354.50 7821.00
1968 1520.00 1371.00 754.00 519.00 368.00 47.00 14.00 21.50 161.50 472.00 931.00 1520.50 7699.50
1969 1788.50 1278.00 1389.50 523.50 200.00 143.50 3.00 5.50 112.50 658.50 924.00 1365.50 8392.00
1970 1832.00 1239.50 1188.00 622.00 187.50 35.50 3.50 4.00 189.50 556.00 995.50 1491.00 8344.00
1971 1749.00 1295.50 1066.50 509.00 288.00 14.50 31.00 15.00 178.00 423.50 931.03 a 1486.50 7987.53
1972 1744.50 1513.00 1064.50 630.50 221.50 48.50 24.50 31.50 182.00 587.50 993.50 1537.00 8578.50
1973 1431.00 1178.50 800.50 571.00 243.50 29.50 4.00 0.00 177.00 343.50 930.50 1484.00 7193.00
1974 1576.50 1164.50 966.17 a 490.50 314.50 69.00 0.00 43.50 212.50 403.00 934.50 1292.00 7466.67
1975 1487.00 1393.50 1256.50 754.50 176.50 54.00 9.50 9.00 251.50 408.00 909.00 1417.00 8126.00
1976 1573.00 1033.00 976.50 403.00 246.50 19.00 2.50 3.50 144.50 660.00 1129.00 1497.50 7688.00
1977 1869.50 1087.50 928.00 351.00 53.00 14.50 3.00 0.00 z 132.50 526.50 1052.50 1530.00 7548.00
1978 1933.00 1570.50 1063.00 598.50 235.00 57.00 8.50 14.50 94.00 466.00 1034.00 1572.50 8646.50
1979 1982.50 1623.50 1177.00 680.00 333.50 52.50 3.50 37.72 a 98.50 539.50 1010.00 1161.00 8699.22
1980 1460.50 1377.00 1086.00 481.03 a 193.50 21.00 5.00 15.50 121.50 561.00 809.50 1380.00 7511.53
1981 1333.00 1118.50 810.00 346.50 232.00 18.00 16.00 11.50 106.00 524.00 797.00 1477.50 6790.00
1982 1933.50 1291.50 1055.00 629.50 157.00 92.00 0.00 32.50 182.00 497.50 1059.00 1235.00 8164.50
1983 1389.00 1093.00 1015.50 714.50 299.00 71.00 2.50 0.00 166.50 479.50 945.50 1977.50 8153.50
1984 1501.00 1072.50 1263.00 575.00 275.50 22.50 5.00 12.00 270.50 482.00 876.50 1443.50 7799.00
1985 1626.00 1316.00 888.00 390.00 115.50 97.00 4.00 48.50 270.50 529.50 1317.00 1729.50 8331.50
1986 1375.50 1375.50 882.00 496.50 176.50 16.50 0.00 50.50 178.00 470.00 1095.00 1192.00 7308.00
1987 1256.50 887.50 871.50 341.00 97.00 24.50 4.00 55.50 128.50 611.00 795.00 1268.00 6340.00
1988 1766.00 1514.00 919.00 520.00 82.50 1.00 0.50 27.00 116.00 602.50 939.50 1311.50 7799.50
1989 1260.50 1549.00 1133.50 518.50 221.00 60.50 0.00 8.00 183.00 465.50 1062.00 1658.00 8119.50
1990 1132.50 1118.00 878.00 575.50 272.00 42.00 0.00 z 19.50 117.00 534.50 872.00 1544.00 7105.00
1991 1588.50 1001.50 886.50 468.50 220.00 11.50 12.00 6.50 185.50 562.00 1194.00 1215.50 7352.00
1992 1218.00 1056.50 863.50 641.50 201.50 61.00 66.50 98.50 182.00 539.00 1077.50 1448.50 7454.00
1993 1628.00 1450.00 1173.50 649.50 258.50 86.50 4.00 24.50 269.00 566.50 1082.00 1381.00 8573.00
1994 1891.00 1531.50 885.00 570.50 167.50 17.50 20.50 37.50 125.00 420.00 865.50 1365.00 7896.50
1995 1513.50 1201.00 995.50 748.50 326.00 66.00 7.00 5.00 210.00 566.50 1116.50 1338.50 8094.00
1996 1712.50 1270.00 1220.00 659.00 352.50 36.00 6.50 5.00 232.50 487.00 1251.00 1713.50 8945.50
1997 1781.00 1313.00 1127.50 712.00 350.50 4.00 18.50 23.00 103.00 458.00 1098.50 1196.50 8185.50
1998 1421.00 918.50 1145.50 504.50 103.00 108.50 3.50 1.00 67.00 442.50 886.00 1205.50 6806.50
1999 1601.50 958.50 951.00 547.50 184.00 54.50 2.00 3.00 199.00 493.00 660.50 1210.50 6865.00
2000 1458.00 978.00 736.50 568.00 168.00 75.00 24.00 13.50 145.50 425.50 1147.50 1786.00 7525.50
2001 1423.50 1497.50 1217.00 531.00 197.50 59.50 2.00 8.00 161.00 508.00 637.50 1283.00 7525.50
2002 1298.00 970.50 1359.50 552.00 351.50 24.00 2.50 24.50 147.00 747.50 935.00 1201.00 7613.00
2003 1473.50 1321.00 1009.00 518.00 290.00 68.50 2.00 15.50 190.00 429.00 1045.50 1244.00 7606.00
2004 1578.50 1328.00 832.00 490.00 279.00 84.50 25.50 77.00 108.50 456.00 798.00 1221.00 7278.00
2005 1547.00 1040.50 1002.00 404.00 255.50 6.00 7.50 9.00 55.00 445.50 826.50 1440.50 7039.00
2006 1056.00 1161.50 943.50 372.00 197.00 19.50 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3749.50
Period of Record Statistics
MEAN 1585.58 1319.26 1066.83 582.20 260.85 65.28 11.26 25.49 181.83 505.06 982.86 1420.61 7986.01
S.D. 212.89 193.62 177.18 121.03 90.25 40.98 12.61 21.46 65.07 114.08 146.46 177.24 550.44
SKEW -0.05 0.05 0.04 0.00 0.14 0.67 1.75 1.08 0.56 0.40 0.34 0.46 -0.33
MAX 2035.50 1960.29 1488.50 875.17 543.50 192.00 66.50 98.50 404.50 908.62 1462.76 1977.50 9180.05
MIN 1056.00 869.00 575.57 323.04 53.00 1.00 0.00 0.00 55.00 203.50 637.50 1072.50 6340.00
NO YRS 111 110 109 110 107 112 109 106 103 105 102 106 84