WAUBAY NWR, SOUTH DAKOTA

Monthly Total Heating Degree Days

(398980)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1952 0.00 z 0.00 z 0.00 z 0.00 z 246.50 h 37.76 a 9.54 e 21.50 127.76 a 641.04 c 990.52 a 1426.00 a 3254.11
1953 1601.09 d 1332.00 1112.00 798.10 a 346.00 98.40 e 12.29 b 7.48 b 70.50 j 328.60 a 876.00 1446.00 7957.97
1954 1878.17 b 955.50 d 1225.02 a 652.78 c 441.75 a 82.00 8.50 5.50 202.50 602.50 470.00 n 1269.89 c 7324.11
1955 1579.97 a 1557.50 1242.58 a 399.50 139.50 19.50 q 1.50 r 0.50 p 204.11 b 453.50 1346.50 1750.50 8673.66
1956 1705.50 1568.50 1276.68 a 839.00 292.50 17.22 c 12.40 a 32.00 218.50 340.50 1051.03 a 1336.50 8690.34
1957 1865.00 1356.50 1151.00 655.50 344.00 69.50 0.00 a 33.00 256.50 614.04 e 1012.00 1248.04 d 8605.08
1958 1406.37 a 1436.50 1127.37 a 627.50 202.50 186.00 37.00 30.50 141.00 466.19 e 1019.50 1620.00 8300.43
1959 1824.19 b 1554.50 1024.50 626.79 b 316.00 45.00 9.50 2.00 186.72 a 720.20 c 1280.69 a 1210.03 a 8800.12
1960 1672.93 b 1541.00 1566.00 673.97 a 286.00 112.50 b 7.46 d 15.50 d 211.03 a 551.91 c 1025.56 c 1590.30 a 9254.16
1961 1649.72 a 1249.00 945.50 b 810.00 383.50 45.56 c 6.41 b 3.10 a 289.00 521.32 a 801.00 g 1667.05 b 7570.15
1962 1801.10 a 1510.00 1271.00 a 694.66 a 245.93 a 81.72 a 28.86 b 15.50 c 253.50 463.97 a 860.69 a 1338.17 d 8565.10
1963 1882.50 1365.50 933.00 563.50 305.00 38.00 1.55 a 24.05 b 94.00 238.50 878.57 b 1710.74 d 8034.91
1964 1469.92 a 1264.61 a 1339.20 a 578.79 a 218.00 67.00 7.00 f 71.50 249.64 b 521.50 1046.25 b 1396.00 f 6826.41
1965 1826.93 a 1496.50 1498.00 694.50 258.50 41.90 a 4.50 33.07 a 472.50 439.88 b 996.00 e 1226.22 d 8988.50
1966 1992.50 1518.50 977.00 823.45 a 373.50 79.50 0.00 79.00 215.00 540.50 1144.00 1421.02 c 9163.97
1967 1568.00 1551.50 1046.50 656.00 433.48 a 71.00 43.29 b 37.20 a 156.00 586.00 1053.00 1425.43 d 8627.40
1968 1643.00 b 1475.50 865.50 606.00 394.00 61.50 25.50 43.00 177.50 526.00 1001.50 1626.50 8445.50
1969 1922.00 1350.50 1463.00 577.00 270.00 175.18 b 18.00 2.07 a 141.96 b 729.00 978.00 1433.00 9059.71
1970 1893.14 b 1373.50 1330.50 719.00 264.50 32.07 a 3.44 d 11.88 a 232.50 548.00 1113.75 b 1563.00 9085.28
1971 1889.50 1400.50 1092.50 557.50 335.66 b 31.50 38.50 17.57 a 195.50 491.00 1031.00 1591.50 8672.22
1972 1845.50 1633.50 1208.50 716.00 256.27 a 68.79 a 23.50 43.50 225.52 a 629.50 1089.83 a 1768.00 9508.40
1973 1537.50 1233.50 862.50 654.00 277.00 43.00 9.30 a 6.00 224.50 363.00 1062.50 1596.00 7868.80
1974 1736.50 1372.00 1162.50 611.00 371.00 72.00 1.00 51.15 a 227.50 432.93 b 979.50 1327.00 8344.08
1975 1581.50 1499.00 1358.32 a 911.00 229.29 b 79.00 14.00 23.50 247.00 476.22 b 959.00 1450.36 c 8828.19
1976 1700.50 1174.00 1114.50 526.61 b 289.85 a 40.86 a 6.20 a 12.18 c 190.56 c 715.30 d 1227.00 1629.50 8627.05
1977 2039.28 a 1209.19 a 1000.00 435.50 74.50 27.50 9.00 50.63 a 176.50 544.05 a 1158.50 1694.00 8418.65
1978 2040.00 1646.50 1238.50 674.00 236.50 68.28 a 11.88 a 19.00 146.00 517.00 1160.00 1638.00 9395.66
1979 2041.35 a 1767.63 a 1311.00 852.00 452.00 80.50 9.50 43.00 121.50 586.50 1095.00 1217.00 9576.98
1980 1626.50 1477.50 1278.50 518.00 191.00 33.00 4.50 19.00 182.00 617.00 886.00 1445.00 8278.00
1981 1457.00 1203.50 0.00 z 437.00 277.50 56.50 16.50 11.88 a 172.50 609.48 c 534.50 l 1102.50 j 4241.87
1982 1191.50 m 1439.00 1214.50 717.00 242.00 151.50 0.00 45.50 233.00 587.00 1158.50 1325.50 7113.50
1983 1411.00 1122.50 1108.00 771.00 340.00 88.50 5.00 0.00 223.00 571.00 1059.00 2058.50 8757.50
1984 1622.50 1126.00 1331.50 649.00 322.00 37.00 12.00 10.00 321.00 555.00 993.50 1637.00 8616.50
1985 1758.00 1430.50 966.00 486.50 0.00 z 108.50 3.50 67.00 298.00 575.50 1410.50 1843.50 8947.50
1986 1528.00 1516.00 1023.50 596.50 249.50 42.50 0.00 62.00 242.50 506.00 1155.00 1253.00 8174.50
1987 1357.00 966.00 1015.50 366.50 136.50 24.50 7.00 54.00 125.50 637.00 902.50 1298.00 6890.00
1988 1727.00 1493.00 1056.50 526.50 114.50 3.00 0.00 30.00 178.45 a 644.80 a 1074.50 1405.00 8253.25
1989 1456.50 1707.50 1272.00 638.00 252.50 96.00 0.00 14.00 199.00 533.50 1137.00 1776.82 a 9082.82
1990 1234.50 1240.00 944.50 614.50 302.00 59.00 13.00 32.00 146.00 547.50 898.50 1601.50 7633.00
1991 1678.50 1125.50 1007.00 520.50 238.00 16.00 10.50 6.00 230.00 586.50 1246.00 1304.00 7968.50
1992 1370.50 1110.29 a 962.55 a 700.50 223.00 105.00 92.50 96.00 172.00 554.00 1169.50 1593.00 8148.84
1993 1724.00 1525.00 1198.00 697.00 255.00 118.50 21.00 25.50 265.50 575.50 1141.00 1468.50 9014.50
1994 2037.00 1640.50 1065.00 606.00 186.50 24.00 15.50 35.50 120.00 439.00 891.00 1350.50 8410.50
1995 1593.50 1363.50 1130.00 803.00 322.50 52.00 11.50 1.50 195.00 583.00 1180.00 912.00 l 7235.50
1996 1869.00 1433.50 1387.00 773.00 372.50 45.50 7.00 2.00 219.50 523.00 1386.50 1806.00 9824.50
1997 1883.00 1379.50 1256.50 817.50 350.50 4.50 27.50 26.00 90.50 455.00 1168.00 1291.00 8749.50
1998 1578.50 1049.00 1258.50 522.00 130.50 109.00 0.00 0.00 55.50 467.00 954.00 1276.00 7400.00
1999 1712.50 1074.50 974.50 556.00 228.00 51.50 0.00 2.50 188.00 510.00 688.00 1187.82 a 7173.32
2000 1553.00 1113.50 850.50 612.00 200.00 74.50 25.00 7.00 154.50 436.50 1152.50 1887.50 8066.50
2001 1501.00 1645.50 1295.00 673.00 223.00 72.00 2.50 4.00 144.50 537.50 689.00 1284.00 8071.00
2002 1358.50 1066.50 1383.00 688.00 395.00 29.00 1.00 16.00 135.50 794.00 982.50 1334.00 8183.00
2003 1627.00 1482.50 1143.00 546.50 298.00 70.00 0.50 5.50 192.50 426.00 1122.50 1301.00 8215.00
2004 1710.50 1322.00 937.00 537.00 319.00 96.00 26.50 62.50 95.50 491.50 825.00 1291.00 7713.50
2005 1615.50 1166.00 1065.00 472.00 278.00 j 16.00 11.00 14.00 67.50 487.00 910.00 1488.00 7312.00
2006 1243.00 1371.00 1089.50 454.50 261.00 24.00 0.00 0.50 245.50 637.00 956.50 1193.50 7476.00
2007 1559.00 1572.00 0.00 z 731.50 158.00 32.50 2.00 21.50 155.00 422.50 956.50 1599.50 7210.00
2008 1678.50 1450.00 d 1200.00 747.00 314.00 43.50 f 4.00 5.00 136.00 540.00 987.50 1730.50 8792.50
2009 1836.00 1401.50 1234.50 731.00 287.00 117.00 26.00 32.50 79.50 770.50 749.00 1651.50 8916.00
2010 1743.00 1503.60 c 974.50 422.50 331.50 37.00 2.50 12.00 261.00 493.00 1047.50 1692.00 8520.10
2011 1887.50 1541.00 1397.50 819.00 392.50 106.73 d 0.00 2.07 a 187.50 426.00 930.50 1226.00 8916.30
2012 1368.00 1249.50 737.50 509.50 204.50 29.50 0.00 10.85 a 155.50 597.50 992.00 1486.50 7340.85
2013 1616.50 1438.50 973.50 j 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 3055.00
Period of Record Statistics
MEAN 1675.25 1379.32 1146.54 636.55 278.52 64.13 11.85 24.47 190.85 536.47 1038.55 1488.02 8471.96
S.D. 201.18 189.98 176.78 125.14 83.17 39.16 15.12 22.19 68.55 103.26 150.34 206.59 639.16
SKEW -0.10 -0.35 0.08 -0.03 -0.12 0.98 2.93 1.13 0.97 -0.03 0.10 0.45 -0.31
MAX 2041.35 1767.63 1566.00 911.00 452.00 186.00 92.50 96.00 472.50 794.00 1410.50 2058.50 9824.50
MIN 1234.50 955.50 737.50 366.50 74.50 3.00 0.00 0.00 55.50 238.50 688.00 1187.82 6890.00
NO YRS 60 61 58 60 58 59 59 60 60 61 58 58 48