REDFIELD, SOUTH DAKOTA

Monthly Total Heating Degree Days

(397047)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197711
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
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 278.00 o 1119.00 1522.50 2641.50
1898 1311.50 1191.08 b 1052.50 631.00 352.00 51.50 11.00 18.50 194.48 a 735.22 a 1134.60 e 1491.74 b 8175.12
1899 1560.50 1630.74 a 1562.50 669.00 318.50 56.50 1.50 0.00 245.50 526.00 731.50 1370.89 d 8673.13
1900 1277.31 d 1494.50 1159.00 434.50 168.50 57.00 14.00 3.00 245.17 a 404.55 a 1103.00 1226.50 7587.04
1901 1375.50 1366.81 a 995.50 563.50 228.00 67.50 0.00 2.00 275.50 482.64 b 1039.50 1493.17 a 7889.62
1902 1486.00 1392.50 1011.63 a 691.00 215.00 163.00 12.50 44.50 302.50 563.50 1019.50 1701.50 8603.13
1903 1644.00 1627.00 1225.07 d 620.50 277.00 67.00 24.50 56.00 293.00 482.10 b 1091.50 1607.00 9014.68
1904 1830.50 1803.50 1182.50 754.50 285.50 101.00 33.50 43.50 231.00 441.00 889.50 1502.50 9098.50
1905 1852.25 a 1655.11 a 885.50 653.50 432.00 135.52 a 18.50 2.77 c 107.00 697.00 904.50 1510.50 8854.15
1906 1547.00 1401.04 a 1417.00 515.00 315.00 113.50 25.50 47.00 89.00 g 594.00 1081.00 1548.45 a 8604.49
1907 1986.00 1365.00 1027.00 852.00 572.00 115.00 11.50 43.00 289.50 622.00 968.50 1265.32 a 9116.82
1908 1415.50 1421.50 1147.50 565.50 345.00 89.00 k 20.00 53.50 108.00 580.00 925.00 1466.50 8048.00
1909 1817.08 e 1447.70 a 1086.50 781.50 330.00 59.50 29.00 8.50 m 176.50 641.00 1032.50 1721.00 9122.28
1910 1350.00 f 1610.00 644.50 443.00 362.50 121.03 a 12.83 b 73.00 210.00 369.00 0.00 z 1465.27 a 5311.13
1911 1776.82 a 1450.17 d 964.00 628.00 241.80 a 5.00 g 43.50 i 78.69 e 166.11 c 623.50 1355.50 1422.50 8707.09
1912 2149.33 a 1471.50 1390.50 527.50 234.50 129.50 15.50 13.50 338.79 a 544.00 856.00 1299.50 8970.13
1913 1633.50 1493.50 1402.15 e 503.50 357.53 a 47.07 a 24.05 b 1.00 197.00 674.00 788.00 1240.50 8361.81
1914 1376.73 c 1669.63 a 1093.00 611.50 282.50 28.00 3.50 53.45 b 131.00 380.00 817.00 1655.92 a 8102.23
1915 1702.93 a 1225.00 1412.50 362.50 388.00 145.00 53.00 66.50 201.00 471.50 873.50 1361.50 8262.93
1916 2016.00 1587.48 b 1100.50 653.50 324.50 112.00 0.00 57.00 257.00 648.00 1014.00 1767.00 9536.98
1917 1843.50 1739.63 a 1286.50 739.00 361.50 126.00 16.50 58.50 185.50 858.18 a 818.50 1755.00 9788.31
1918 1924.50 1426.00 887.50 701.50 321.37 a 51.00 33.50 10.50 313.00 465.00 929.00 1239.00 8301.87
1919 1110.83 d 1384.50 1147.00 566.25 b 237.00 71.38 a 0.00 b 2.50 119.00 714.00 0.00 z 1540.50 6892.96
1920 1197.50 h 1243.00 1103.00 796.67 c 233.50 71.00 3.00 29.34 c 103.93 b 310.00 857.00 1285.50 6035.93
1921 1226.00 963.57 e 877.50 466.00 243.50 17.00 4.00 17.00 116.00 394.45 b 1124.00 1296.00 6745.01
1922 1596.00 1580.96 a 1016.28 a 511.50 139.50 c 16.00 22.45 b 2.50 82.76 a 463.00 908.28 a 1501.50 7840.73
1923 1369.34 b 1401.00 1155.00 585.50 242.50 48.00 1.50 27.50 90.00 553.87 a 761.79 b 1182.65 a 7418.65
1924 1752.00 1225.81 c 1137.00 579.00 435.00 102.93 a 20.00 21.18 a 254.46 b 379.75 a 980.00 1686.00 8573.14
1925 1663.67 a 1169.50 868.00 329.00 325.00 68.50 25.50 2.00 96.43 b 804.50 949.00 1431.00 7732.10
1926 1501.50 1043.50 1038.00 538.39 b 125.00 65.00 0.00 a 1.50 221.00 469.50 1113.00 1473.50 7589.89
1927 1449.50 1133.50 920.50 552.50 335.50 105.00 12.00 44.00 207.00 413.69 b 1144.00 1928.50 8245.69
1928 1438.00 1171.50 886.50 731.00 133.00 96.00 2.00 23.50 210.00 515.12 a 889.14 a 1199.70 a 7295.46
1929 1956.00 1604.50 897.45 a 539.00 337.00 71.00 0.50 5.68 a 265.00 468.00 1083.21 b 1409.50 8636.85
1930 1884.00 960.00 1003.00 447.00 331.50 27.78 c 6.50 1.00 138.00 559.50 899.50 1211.50 7469.28
1931 1189.00 891.50 1006.50 489.50 334.00 14.50 0.50 l 18.08 a 61.50 381.00 919.50 1336.50 6641.58
1932 1685.22 b 1400.29 a 1233.50 463.50 178.50 0.00 7.00 4.00 135.50 613.50 963.62 a 1542.50 8227.13
1933 1306.50 1377.50 982.00 420.00 i 252.00 10.50 0.50 12.00 66.50 532.00 923.00 1484.00 6946.50
1934 1317.50 a 1106.50 1035.00 526.50 0.00 z 13.00 9.50 44.00 0.00 z 355.00 838.00 0.00 z 5245.00
1935 0.00 z 934.50 827.00 731.50 364.00 86.50 0.00 43.50 111.50 528.50 1167.00 1396.00 6190.00
1936 2027.50 2074.50 943.43 a 683.00 110.50 30.50 0.00 4.50 111.00 567.00 1034.00 1346.00 8931.93
1937 2043.50 1420.50 1053.00 625.00 137.00 82.50 1.00 1.50 128.50 500.00 1023.50 1472.00 8488.00
1938 1601.50 1413.50 839.00 481.50 264.00 30.00 0.00 0.00 69.50 277.00 1030.50 1234.50 7241.00
1939 1323.00 1589.00 969.50 569.50 74.50 30.00 0.00 9.50 128.00 480.50 767.00 1062.50 7003.00
1940 1829.00 1312.00 1141.50 621.50 206.50 31.50 0.00 a 14.50 93.00 277.50 1087.00 1215.72 a 7829.72
1941 1526.00 1321.00 1068.98 a 437.00 128.00 58.50 14.50 4.00 160.00 467.50 884.50 1163.00 7232.98
1942 1292.50 1216.00 942.50 411.00 354.00 50.50 3.21 b 7.50 284.50 470.50 937.50 1503.50 7473.21
1943 1882.50 1186.50 1193.50 454.50 320.33 a 80.50 0.00 8.00 174.50 416.00 983.50 1199.00 7898.83
1944 1171.50 1416.00 1248.00 663.00 161.50 71.00 8.50 22.00 123.00 425.50 913.50 1323.00 7546.50
1945 1448.50 1230.50 767.00 644.00 365.50 168.50 16.50 6.00 217.00 469.00 1003.50 1612.50 7948.50
1946 1489.00 1263.50 717.50 337.50 335.00 75.00 0.00 39.00 170.50 573.00 995.50 1313.00 7308.50
1947 1257.50 1370.00 1103.50 669.50 325.00 74.00 7.00 1.50 150.50 282.50 1165.50 1467.00 7873.50
1948 1629.05 a 1505.93 a 1190.50 439.50 231.00 55.50 0.00 18.50 69.00 509.50 948.00 1448.00 8044.48
1949 1790.50 1538.50 1096.00 488.00 184.50 29.50 0.50 10.00 218.79 a 522.50 750.00 1473.02 a 8101.81
1950 1993.00 1377.50 1261.50 828.00 362.50 63.00 13.50 45.00 157.24 a 438.00 1132.00 1527.27 a 9198.51
1951 1709.00 1194.00 1453.50 686.50 220.50 133.97 a 24.00 28.50 254.50 580.50 1099.00 1708.50 9092.46
1952 1796.00 1307.00 1376.50 518.00 249.55 a 15.50 1.00 7.00 115.50 610.50 949.00 1321.00 8266.55
1953 1464.23 a 1251.50 1046.00 718.00 316.50 51.50 6.00 2.00 135.00 314.00 844.50 1368.00 7517.23
1954 1772.00 819.50 1154.00 568.00 384.50 81.00 0.00 1.00 130.00 558.00 784.00 1350.57 a 7602.57
1955 1505.00 1495.93 a 1145.50 316.00 118.50 75.00 0.00 5.50 169.00 433.48 a 1288.50 1764.50 8316.91
1956 1727.00 1630.00 1180.50 748.00 255.50 11.50 1.50 23.50 169.50 346.00 988.50 1245.00 8326.50
1957 1788.50 1269.00 1060.00 620.50 306.50 50.50 0.00 16.00 196.00 510.00 954.00 1150.50 7921.50
1958 1317.50 1381.50 1089.00 581.90 a 171.00 122.50 18.00 17.00 114.00 431.00 930.50 1496.50 7670.40
1959 1737.50 1523.50 894.50 568.00 274.50 24.00 3.00 2.07 a 177.00 670.00 1214.00 1127.50 8215.57
1960 1660.00 1525.50 1528.00 585.50 250.50 51.00 5.50 7.00 177.50 453.50 946.00 1540.50 8730.50
1961 1646.00 1268.50 865.50 706.00 320.00 34.50 1.50 1.00 248.50 433.00 947.50 1584.50 8056.50
1962 1650.00 1421.50 1317.00 584.50 172.50 58.50 23.50 9.00 199.00 432.00 823.50 1327.00 8018.00
1963 1823.00 1268.00 835.00 544.50 258.50 16.00 0.00 13.00 67.00 221.00 873.00 1641.50 7560.50
1964 1371.00 1141.50 1242.00 513.00 179.50 41.50 0.00 47.00 197.50 492.00 1058.00 1677.50 7960.50
1965 1823.50 1397.00 1374.00 595.00 209.00 19.50 1.00 22.00 406.50 403.00 983.50 1183.50 8417.50
1966 1938.00 1486.00 919.00 727.50 306.00 62.00 0.00 52.50 191.00 519.50 1130.50 1402.50 8734.50
1967 1466.00 1446.50 958.50 573.00 383.50 41.50 36.00 23.50 117.00 536.00 973.50 1430.00 7985.00
1968 1600.50 1376.50 828.50 580.00 386.50 53.50 18.00 40.00 168.50 512.50 965.00 1574.50 8104.00
1969 1864.50 1294.50 1434.50 481.50 216.00 133.00 1.50 5.00 112.50 702.00 942.00 1409.50 8596.50
1970 1914.50 1284.00 1242.50 659.00 205.50 23.50 6.50 2.50 199.50 543.00 1028.50 1584.50 8693.50
1971 1835.50 1382.50 1070.00 509.00 270.50 13.50 26.00 10.00 201.50 490.50 983.00 1595.00 8387.00
1972 1806.00 1591.50 1124.00 621.00 227.00 50.00 20.50 29.00 158.00 607.00 1049.00 1645.50 8928.50
1973 1511.00 1190.50 812.50 579.50 251.50 27.50 3.00 0.00 206.50 364.50 1042.00 1537.00 7525.50
1974 1634.22 a 1220.00 964.10 a 506.00 308.50 67.50 0.50 41.50 213.00 416.00 982.00 1302.50 7655.82
1975 1496.50 1415.50 1267.50 751.00 199.00 60.50 4.00 9.50 226.50 452.00 942.00 1382.00 8206.00
1976 1585.00 1048.50 1027.50 440.00 224.50 25.50 1.50 2.50 156.50 676.00 1149.00 1510.00 7846.50
1977 1902.50 1087.00 947.50 356.50 56.50 11.00 1.00 13.00 125.00 532.50 1092.00 0.00 z 6124.50
Period of Record Statistics
MEAN 1631.44 1362.66 1084.49 579.04 268.87 63.03 9.53 20.85 177.35 502.16 982.64 1439.98 8155.39
S.D. 242.59 214.35 192.69 119.04 91.52 39.70 11.23 20.49 70.27 121.70 123.46 176.93 619.09
SKEW -0.11 0.08 0.33 -0.02 0.13 0.69 1.32 0.94 0.61 0.33 0.32 0.18 0.26
MAX 2149.33 2074.50 1562.50 852.00 572.00 168.50 53.00 78.69 406.50 858.18 1355.50 1928.50 9788.31
MIN 1110.83 819.50 644.50 316.00 56.50 0.00 0.00 0.00 61.50 221.00 731.50 1062.50 6745.01
NO YRS 77 80 80 79 79 78 78 79 78 80 79 79 68