REDFIELD, SOUTH DAKOTA

Monthly Total Heating Degree Days

(397052)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201104
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
1949 1716.50 1493.50 1039.00 464.48 a 148.50 27.00 2.00 14.00 199.50 475.50 686.50 1377.29 c 7643.77
1950 1956.62 a 1314.00 1236.90 a 795.52 a 357.50 61.00 19.50 37.50 174.83 a 475.00 1179.00 1617.00 9224.36
1951 1738.50 1302.50 1516.42 a 723.50 231.50 183.00 41.00 43.00 298.50 597.00 1179.00 877.50 o 7853.92
1952 0.00 z 733.50 l 1014.50 h 506.25 b 290.37 a 33.50 13.43 a 27.00 153.21 b 635.50 1004.00 1322.67 d 3985.93
1953 1480.80 c 1265.00 1045.73 a 720.50 293.98 a 58.50 14.00 5.00 155.50 316.00 857.07 a 1387.50 7599.59
1954 1812.00 827.50 1158.00 549.00 378.50 85.50 0.00 1.50 131.50 559.50 774.81 d 1355.00 7632.81
1955 1520.00 1500.00 1143.50 329.50 141.10 b 84.50 0.00 7.23 a 178.50 432.40 b 1313.50 1792.32 a 8442.55
1956 1742.20 a 1656.00 1178.50 757.00 224.23 a 13.00 6.00 31.00 191.00 343.58 a 989.00 1242.00 8373.52
1957 1819.18 a 1324.62 b 1074.50 622.24 a 307.00 63.50 0.00 15.00 207.50 509.50 954.83 a 1173.35 a 8071.22
1958 1309.00 1362.50 1076.00 561.50 151.26 b 132.00 20.00 17.00 141.43 b 449.50 b 0.00 z 0.00 z 5220.19
1959 0.00 z 0.00 z 0.00 z 108.50 v 310.60 e 44.50 7.50 8.50 211.00 680.00 1226.90 a 1139.00 3627.99
1960 1656.50 1521.00 1535.50 595.50 276.33 b 66.92 d 9.00 16.02 a 204.31 a 483.50 956.00 0.00 z 7320.58
1961 0.00 z 0.00 z 369.00 q 761.79 b 356.00 51.50 17.00 7.48 b 322.76 a 543.53 a 1057.80 e 1578.93 a 4696.79
1962 1693.00 1439.00 1316.00 601.00 169.50 58.00 28.00 11.00 210.00 431.50 819.00 1337.50 8113.50
1963 1821.25 a 1234.59 a 831.50 535.00 258.50 18.00 0.00 17.00 76.00 225.50 890.00 1671.50 7578.84
1964 1368.50 1119.50 1230.50 494.00 184.00 49.50 0.00 53.50 191.50 519.00 1063.50 1680.00 7953.50
1965 1807.50 1412.50 1362.50 589.00 209.50 27.00 0.00 25.50 414.00 390.00 982.00 1160.00 8379.50
1966 1921.50 1461.00 874.50 737.00 302.50 70.00 0.00 49.00 189.00 530.00 1110.50 1390.35 a 8635.35
1967 1471.00 1433.50 959.50 576.50 399.50 45.50 43.50 31.50 125.00 551.50 982.00 1418.00 8037.00
1968 1598.57 a 1371.50 811.00 571.50 381.50 50.50 20.00 37.50 163.50 482.50 955.50 1607.35 a 8050.92
1969 1826.00 1292.00 1452.50 489.00 224.00 136.00 3.00 5.34 b 105.52 a 734.24 d 921.50 1373.50 8562.60
1970 1904.00 1261.00 1210.50 656.50 219.50 31.50 9.00 5.50 172.50 523.00 1010.50 1578.50 8582.00
1971 1830.50 1375.00 1048.00 498.10 a 302.00 14.50 18.27 c 1.11 c 194.00 436.00 994.00 1556.72 a 8268.20
1972 1799.50 1596.00 1106.00 613.50 233.02 a 51.43 b 24.00 26.50 47.50 m 702.87 e 1026.00 1682.94 e 8861.75
1973 1538.50 1182.50 854.50 648.75 b 359.60 a 48.89 c 1.79 e 0.00 d 248.00 392.00 1089.00 1597.61 c 7961.13
1974 1724.00 1250.48 c 612.00 l 598.50 354.36 b 86.00 2.58 a 46.00 247.00 451.00 1009.50 1352.00 7121.43
1975 1225.00 g 1410.00 1290.50 817.00 204.00 68.28 a 8.27 a 12.00 246.00 488.50 987.00 1396.19 e 6927.73
1976 1690.57 b 1029.00 1099.00 468.00 302.00 38.50 6.50 5.50 198.00 729.02 a 1169.00 1577.38 a 8312.47
1977 1980.50 1165.50 1036.00 424.00 70.00 18.00 5.00 41.00 146.00 589.00 1125.00 a 1628.50 8228.50
1978 2106.50 1648.00 1213.00 632.00 0.00 z 0.00 z 13.00 30.50 122.00 575.50 1156.50 1599.00 9096.00
1979 2037.00 1771.50 1233.50 682.24 a 403.52 a 79.50 5.50 44.90 b 122.59 a 607.71 b 819.50 h 1256.50 8244.45
1980 1635.00 1488.84 a 1226.05 a 514.00 248.00 59.44 c 4.65 a 22.50 194.00 614.50 895.00 1411.50 8313.48
1981 1440.50 1152.50 916.05 a 465.50 321.50 43.00 18.27 c 8.00 139.00 575.00 812.00 1543.50 7434.82
1982 2056.50 1442.50 1135.50 664.50 216.00 134.00 1.00 31.00 207.50 564.00 1106.50 1286.50 8845.50
1983 1337.00 1066.00 1018.50 710.50 362.00 105.00 1.00 0.00 225.50 542.00 962.00 2030.00 8359.50
1984 1551.50 1053.50 1207.50 592.50 364.00 47.50 4.00 14.00 323.50 541.50 953.00 1630.00 8282.50
1985 1774.50 1408.00 953.50 468.50 152.00 138.00 8.00 69.50 280.00 602.00 1397.00 1802.00 9053.00
1986 1488.00 1490.50 944.00 612.50 243.50 24.00 3.00 57.50 237.50 545.50 1146.50 1261.50 8054.00
1987 1332.00 928.50 972.00 433.00 141.50 34.00 9.00 58.50 147.00 676.50 859.50 1246.00 6837.50
1988 1761.00 1485.00 956.00 591.50 137.50 4.00 4.00 38.00 187.50 643.00 1045.00 1409.00 8261.50
1989 1471.50 1672.50 1286.00 559.50 256.00 100.50 3.00 18.50 217.50 552.00 1077.50 0.00 z 7214.50
1990 0.00 z 0.00 z 923.00 670.00 336.50 64.00 19.00 20.00 170.50 622.50 909.00 1654.50 5389.00
1991 1699.00 1041.00 999.50 511.00 235.00 9.00 9.00 4.50 213.50 607.00 1213.00 1269.50 7811.00
1992 1299.00 1077.00 867.50 678.50 251.50 89.50 73.50 95.50 224.50 578.00 1078.50 1557.50 7870.50
1993 1728.00 1500.50 1105.00 661.50 286.00 130.50 19.50 32.50 327.50 630.50 1137.50 1457.00 9016.00
1994 2012.00 1686.50 1003.50 612.00 209.50 41.00 26.50 0.00 z 179.50 485.00 935.50 1466.50 8657.50
1995 1651.50 1299.00 1126.00 790.00 343.50 66.50 13.00 5.50 248.00 612.00 1137.00 1405.00 8697.00
1996 1834.00 1353.50 1346.50 715.50 390.00 56.00 0.00 z 10.50 229.00 579.00 1364.50 1793.00 9671.50
1997 1888.50 1378.50 1215.50 746.50 369.50 10.50 24.00 28.00 123.50 514.50 1131.50 1169.00 8599.50
1998 1568.00 1020.50 1236.50 530.50 165.50 120.00 4.50 n 0.50 82.50 520.80 a 903.50 1230.50 7378.80
1999 1662.38 c 983.00 939.30 a 565.38 d 235.17 b 64.44 c 4.43 c 16.53 a 290.40 e 432.00 l 509.00 j 886.50 h 4761.04
2000 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 967.00 f 1746.73 e 1746.73
2001 1045.00 i 865.00 m 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
2002 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 982.50 1267.00 2249.50
2003 1532.50 1434.00 1087.00 514.00 279.00 72.50 0.00 14.00 208.00 448.00 1166.00 1259.50 8014.50
2004 1655.50 1357.00 853.00 535.00 307.50 106.50 27.50 82.00 134.00 502.95 b 882.50 1277.50 7720.95
2005 1644.50 1120.50 1005.50 497.50 339.00 16.00 9.00 j 12.00 114.50 534.00 911.50 1523.00 7718.00
2006 1144.00 1220.00 994.50 464.50 263.00 22.00 0.00 3.50 278.00 677.50 1016.00 1246.00 7329.00
2007 1622.50 1592.50 889.00 718.50 154.50 35.50 3.00 14.00 183.50 487.00 965.00 1604.50 8269.50
2008 1709.00 1516.50 1101.50 714.00 349.50 58.50 6.00 14.00 173.50 576.50 959.00 1695.50 8873.50
2009 1734.50 1323.00 1170.00 674.50 284.00 116.00 26.50 44.50 102.00 770.00 807.00 1648.50 8700.50
2010 1740.00 1532.50 964.50 409.00 301.00 24.50 0.00 3.50 200.00 465.50 1001.50 1582.50 8224.50
2011 1794.00 1525.50 1326.50 650.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5296.50
Period of Record Statistics
MEAN 1684.29 1342.29 1101.82 598.11 268.72 61.86 11.53 24.00 196.23 540.11 1021.47 1470.03 8200.48
S.D. 207.38 208.97 172.75 109.22 80.34 39.23 13.50 21.12 65.68 103.11 142.13 198.43 498.60
SKEW -0.30 -0.31 0.47 -0.04 -0.27 0.87 2.19 1.26 0.76 -0.33 0.35 0.33 -0.28
MAX 2106.50 1771.50 1535.50 817.00 403.52 183.00 73.50 95.50 414.00 770.00 1397.00 2030.00 9224.36
MIN 1144.00 827.50 811.00 329.50 70.00 4.00 0.00 0.00 76.00 225.50 686.50 1139.00 6837.50
NO YRS 55 56 56 59 58 58 56 58 58 58 57 56 41