WHITE LAKE, SOUTH DAKOTA

Monthly Total Heating Degree Days

(399232)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1909 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 z 0.00 z 0.00
1910 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 z 0.00 z 0.00
1911 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 z 0.00 z 0.00
1912 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 z 0.00 z 0.00
1913 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 z 0.00 z 0.00
1914 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 z 0.00 z 0.00
1915 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 z 0.00 z 0.00
1916 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 z 0.00 z 0.00
1917 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 z 0.00 z 0.00
1918 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 z 0.00 z 0.00
1919 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 z 0.00 z 0.00
1920 1425.50 1198.50 822.50 f 696.72 a 125.00 12.00 u 0.00 z 0.00 z 100.00 279.00 a 895.34 a 0.00 z 4720.07
1921 1129.00 938.50 589.57 d 346.50 j 0.00 z 0.00 z 0.00 z 30.00 145.50 398.50 1082.00 1197.63 a 5510.71
1922 1531.00 1536.00 971.50 493.00 162.50 19.00 19.50 4.00 83.50 457.00 882.50 1454.50 7614.00
1923 1259.63 a 1301.50 1072.50 528.00 233.00 55.00 0.00 12.50 77.00 492.00 705.00 1084.50 6820.63
1924 1680.50 1130.00 1118.00 497.00 399.38 a 94.82 b 9.00 9.82 a 161.50 265.00 882.50 1646.00 7893.52
1925 1594.50 1096.00 855.50 282.50 295.00 22.50 14.00 0.00 72.50 843.00 926.00 1360.50 7362.00
1926 1426.00 1006.50 977.50 498.50 117.28 a 51.50 0.00 0.00 201.00 464.50 1085.50 1400.00 7228.28
1927 1377.12 e 1018.00 877.50 543.00 308.00 107.78 c 7.00 26.00 185.00 309.48 a 1049.50 1804.50 7612.88
1928 1362.50 1088.50 827.00 670.00 136.00 59.50 j 0.00 17.00 145.00 464.00 902.00 1118.50 6730.50
1929 1865.00 1532.50 833.50 510.00 297.50 66.50 0.00 3.50 235.00 421.50 1040.50 1333.00 8138.50
1930 1778.50 824.50 942.00 385.50 304.50 51.00 2.50 1.00 106.50 528.50 817.00 1124.50 6866.00
1931 1055.00 836.00 979.50 463.00 297.60 a 10.00 1.00 14.00 65.50 329.50 814.50 1234.50 6100.10
1932 1504.02 a 1203.50 1207.50 417.50 160.50 2.50 7.00 0.00 96.50 534.50 654.50 h 1418.50 6552.02
1933 1073.00 1200.50 d 874.50 515.50 240.77 a 3.50 0.00 2.50 34.50 398.00 691.50 f 1272.50 5615.27
1934 1219.85 a 1013.00 931.50 421.50 43.50 3.50 0.00 17.50 170.17 a 283.00 712.50 1273.50 6089.52
1935 1435.00 884.00 760.50 598.00 315.50 14.50 z 0.00 41.00 108.00 549.50 1074.00 1351.00 7116.50
1936 1911.00 1961.50 925.50 637.00 115.50 35.50 0.00 0.00 73.50 466.00 963.50 1265.50 8354.50
1937 1965.50 1324.50 1010.50 595.00 139.00 104.00 0.00 1.50 107.00 478.00 945.00 1404.50 8074.50
1938 1406.00 1286.00 800.50 487.50 276.50 24.00 0.00 8.50 57.00 250.50 953.00 1200.50 6750.00
1939 1149.00 1487.50 878.50 535.50 66.50 30.00 0.00 8.50 96.00 470.50 749.50 1014.50 6486.00
1940 1842.00 1231.50 1080.50 566.00 229.00 29.00 0.00 1.60 b 53.50 193.50 1035.00 1131.50 7393.10
1941 1424.45 a 1272.00 944.00 425.17 a 110.57 a 48.50 0.50 1.15 d 101.50 426.50 816.50 914.00 f 5570.84
1942 1249.00 1188.00 960.00 364.00 326.00 35.17 a 4.13 a 1.00 247.00 429.00 828.10 a 1378.50 7009.91
1943 1676.58 a 1009.00 1110.50 399.00 308.00 62.00 0.00 9.00 121.50 360.00 909.50 1163.00 7128.08
1944 1148.55 a 1306.00 1201.00 636.00 0.00 z 65.00 1.55 a 20.00 114.00 q 382.50 874.00 1334.60 b 6969.20
1945 1303.55 a 1142.30 a 794.50 633.10 a 384.40 a 172.76 a 21.18 a 7.23 a 223.45 a 392.00 925.00 1537.17 b 7536.65
1946 1309.23 a 1159.93 a 723.33 a 312.86 b 352.88 a 43.33 c 1.50 39.50 169.00 533.20 a 970.50 1200.22 a 6815.48
1947 1204.87 a 1307.00 1074.50 644.50 327.00 83.50 19.00 0.50 136.50 244.00 1151.90 a 1388.00 7581.26
1948 1545.00 1398.50 1089.00 373.50 241.00 57.50 1.00 17.50 73.00 0.00 z 0.00 z 0.00 z 4796.00
1949 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 x 1.50 12.50 187.00 462.00 654.50 1352.63 a 2670.13
1950 1844.50 1282.50 1264.80 a 774.50 338.00 58.39 b 17.50 27.50 139.00 363.00 966.50 1354.50 8430.69
1951 1467.33 a 1051.00 0.00 z 0.00 z 0.00 z 53.50 h 27.50 19.50 243.50 533.00 1038.89 c 1587.20 a 5967.92
1952 1592.37 a 1155.50 1245.00 476.50 201.50 7.00 1.60 b 0.50 87.50 534.00 904.00 1252.00 7457.47
1953 1322.00 1175.00 944.00 702.00 283.00 37.24 a 3.50 2.00 96.50 286.00 769.00 1285.00 6905.24
1954 1610.00 731.00 1126.50 464.50 353.00 65.00 0.00 0.00 b 84.00 535.50 722.22 c 1263.50 6955.22
1955 1356.25 a 1388.50 1050.50 300.00 99.00 81.50 0.00 2.00 82.78 c 380.50 1207.50 1628.50 7577.03
1956 1623.50 1481.00 1103.50 715.00 217.50 10.00 1.00 16.05 c 136.00 254.41 b 911.50 1143.00 7612.47
1957 1688.50 1128.00 1041.00 602.00 289.00 43.50 0.00 15.00 162.50 495.48 a 917.50 773.50 j 6382.48
1958 1202.50 1303.00 1184.00 546.00 125.55 a 93.62 a 8.55 b 6.20 a 98.50 384.50 858.00 1378.50 7188.92
1959 1608.00 1376.00 831.50 554.46 b 260.18 c 24.00 5.00 0.00 a 186.00 623.10 a 1137.93 a 1059.00 7665.17
1960 1524.00 1454.50 1406.00 528.50 242.00 33.50 0.00 4.28 b 144.50 390.00 852.00 1418.50 7997.78
1961 1572.14 c 1104.00 876.02 b 653.50 324.31 e 27.50 0.00 0.00 232.50 380.50 871.00 1438.00 7479.47
1962 1486.50 1290.50 1285.00 511.50 107.00 58.00 11.50 4.00 164.50 360.50 742.00 1234.32 a 7255.32
1963 1673.50 1084.00 730.00 466.50 201.00 7.00 0.00 a 7.00 49.50 187.00 801.00 1508.50 6715.00
1964 1240.00 1069.50 1151.50 471.00 141.00 35.69 a 0.00 b 45.98 a 134.00 424.91 b 737.50 l 1533.50 6247.09
1965 1570.00 1212.00 1307.00 489.50 172.10 b 15.54 b 0.00 14.50 357.93 a 352.07 c 867.50 1062.50 7420.64
1966 1742.00 1336.00 797.50 677.00 258.50 41.50 0.00 31.50 152.50 432.50 980.50 1297.50 7747.00
1967 1310.50 1256.50 869.00 495.00 359.50 39.50 29.50 15.00 98.50 461.50 904.50 1296.83 a 7135.83
1968 1481.50 1259.50 708.00 499.50 327.50 35.50 12.92 a 9.50 107.50 396.00 877.00 1481.50 7195.92
1969 1701.00 1208.50 1329.50 391.00 158.00 98.50 0.00 1.50 46.00 618.97 a 827.59 a 1274.50 7655.05
1970 1732.50 1057.00 1163.02 a 576.00 138.50 23.50 2.50 0.00 150.50 497.50 959.00 1445.50 7745.52
1971 1655.00 1169.28 c 1009.00 465.50 241.50 10.50 21.50 1.00 151.00 409.50 881.00 1436.50 7451.28
1972 1660.57 a 1412.00 960.50 561.00 211.50 32.50 10.50 15.00 133.00 533.00 983.50 1478.00 7991.07
1973 1382.00 1085.54 b 765.00 556.61 b 220.62 a 12.50 0.00 0.00 145.00 328.50 971.67 c 1433.50 6900.93
1974 1468.22 b 1079.50 872.00 462.50 246.50 47.50 0.00 a 22.00 168.50 325.50 871.00 1174.90 a 6738.12
1975 1365.55 a 1320.00 1136.50 637.00 146.50 40.00 1.00 0.00 150.50 392.50 905.50 1258.50 7353.55
1976 1427.50 919.00 922.77 a 369.31 a 189.50 16.00 0.00 0.00 106.07 b 570.50 1031.00 1332.48 a 6884.13
1977 1717.50 993.00 884.50 332.50 40.50 1.00 0.00 a 5.00 117.93 a 509.00 998.50 1476.50 7075.93
1978 1970.50 1578.50 1068.00 590.50 236.00 51.72 a 3.00 13.50 82.50 445.50 1028.00 1500.40 a 8568.12
1979 1943.50 1578.50 1054.52 a 642.00 364.25 c 64.62 d 7.50 28.00 86.50 513.50 1065.00 1089.17 e 8437.05
1980 1493.37 e 1350.11 b 1073.00 484.00 241.59 b 24.00 0.00 8.00 89.50 547.50 798.50 1269.89 c 7379.46
1981 1243.50 1068.50 815.00 336.50 293.50 26.50 f 12.50 5.50 110.50 523.50 781.03 a 1435.50 6625.53
1982 1846.50 1266.50 1013.00 665.00 191.50 121.00 0.00 25.00 66.50 s 508.50 1041.00 1229.50 7907.50
1983 1235.00 986.00 991.00 733.50 334.50 93.50 3.50 0.00 190.00 461.00 1009.29 b 1937.50 7974.79
1984 1399.50 995.00 1127.00 577.50 273.00 24.50 3.50 2.00 228.50 484.00 846.50 1426.00 7387.00
1985 1540.50 1248.50 828.00 355.50 96.50 88.50 4.00 38.50 39.00 j 220.50 m 1335.50 1624.00 7159.50
1986 1192.93 d 1309.00 734.00 514.00 139.00 6.00 0.00 35.00 158.50 428.50 1000.00 1111.00 6627.93
1987 1174.00 841.50 857.50 341.00 74.50 9.00 1.50 44.50 102.00 548.00 792.00 1215.50 6001.00
1988 1657.00 1348.50 853.50 469.50 113.00 6.00 5.00 12.50 103.00 526.00 863.00 1242.50 7199.50
1989 1185.00 1482.00 1076.50 462.00 198.00 49.50 0.00 2.50 137.50 408.50 939.00 1593.00 7533.50
1990 1041.50 1031.00 812.50 527.00 245.00 24.00 3.00 3.00 81.00 469.00 767.50 1466.50 6471.00
1991 1504.50 922.00 830.00 440.00 194.50 1.00 0.00 0.00 130.00 504.00 1098.50 1135.50 6760.00
1992 1076.50 943.50 778.00 563.00 173.00 41.00 36.00 67.00 108.50 475.00 1034.00 1355.50 6651.00
1993 1484.00 1355.50 951.50 565.00 214.50 76.50 6.50 15.50 199.00 497.00 1035.00 1232.50 7632.50
1994 1696.50 1403.50 802.00 530.00 147.00 18.50 7.50 13.00 106.50 390.00 839.50 1285.00 7239.00
1995 1409.00 1023.00 964.00 718.00 304.50 57.00 3.00 1.00 178.50 529.00 1017.50 1274.50 7479.00
1996 1640.50 1155.00 1188.50 580.00 328.00 25.00 9.00 0.00 188.00 453.00 1201.00 1660.00 8428.00
1997 1671.00 1167.00 917.00 675.50 286.50 1.50 10.00 8.50 84.00 426.00 1001.50 1083.50 7332.00
1998 1366.50 842.00 1127.00 465.00 132.00 105.00 0.00 0.00 35.50 426.50 800.00 1123.50 6423.00
1999 1411.00 828.00 834.00 520.00 203.50 44.50 1.00 2.00 178.50 450.50 627.00 1097.00 6197.00
2000 1307.50 907.00 704.50 483.00 139.00 51.50 5.00 0.50 110.50 358.50 1222.24 a 1662.00 6951.24
2001 1341.50 1425.00 1152.00 499.00 157.00 57.50 0.50 1.00 103.50 431.50 656.00 1201.00 7025.50
2002 1191.50 925.00 1292.00 483.50 266.50 l 17.50 0.00 9.00 100.00 708.50 876.00 1136.00 6739.00
2003 1414.00 1219.00 922.50 464.50 245.00 66.50 0.00 10.00 131.00 352.00 1001.50 1136.50 6962.50
2004 1453.50 1174.50 748.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3376.50
2005 0.00 z 0.00 z 0.00 z 517.50 378.50 46.00 7.50 8.00 71.00 491.50 855.00 1469.00 3844.00
2006 1023.50 1178.00 997.00 471.50 251.00 27.50 2.00 7.50 275.50 633.00 921.00 1209.00 6996.50
2007 1458.50 1458.50 808.50 659.00 149.50 34.14 a 0.00 a 9.50 165.00 449.00 881.50 1404.50 7477.64
2008 1487.00 1371.50 1041.00 714.00 363.00 40.50 5.50 4.00 153.50 521.00 924.50 1564.47 a 8189.97
2009 1509.50 1111.50 1050.50 678.00 0.00 z 0.00 z 0.00 z 27.50 96.50 739.00 756.00 1572.00 7540.50
2010 1615.50 1444.00 907.50 440.50 344.50 31.00 0.00 3.00 171.50 417.00 933.00 1454.50 7762.00
2011 1664.00 1375.00 1172.50 641.50 340.50 67.50 0.00 3.50 201.00 422.00 878.00 1184.50 7950.00
2012 1264.00 1125.50 548.00 432.00 201.50 34.50 0.00 15.00 129.00 589.50 897.00 1372.50 6608.50
2013 1427.50 1208.50 1185.23 a 37.50 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 3821.23
Period of Record Statistics
MEAN 1469.73 1194.66 973.33 524.11 227.42 43.81 4.51 10.94 133.09 446.57 921.87 1337.85 7301.84
S.D. 227.03 209.59 174.30 110.44 89.41 32.09 7.32 13.00 57.15 111.07 131.84 180.16 589.41
SKEW 0.15 0.36 0.14 0.05 -0.06 1.16 2.22 1.75 0.97 0.40 0.36 0.61 0.00
MAX 1970.50 1961.50 1406.00 774.50 399.38 172.76 36.00 67.00 357.93 843.00 1335.50 1937.50 8568.12
MIN 1023.50 731.00 548.00 282.50 40.50 1.00 0.00 0.00 34.50 187.00 627.00 1014.50 6001.00
NO YRS 92 92 90 89 86 84 89 91 89 90 88 88 73