BRITTON, SOUTH DAKOTA

Monthly Total Heating Degree Days

(391049)

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
1893 1979.50 1743.50 1493.68 a 841.07 b 396.36 c 38.50 s 0.00 z 59.00 i 291.50 0.00 z 0.00 z 1785.17 b 8530.78
1894 1979.00 1589.00 0.00 z 365.50 i 269.38 b 44.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3881.88
1895 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
1896 0.00 z 1262.02 a 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 1262.02
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 0.00 z 0.00 z 0.00 z 0.00
1898 1285.50 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 0.00 z 0.00 z 1285.50
1899 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
1900 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
1901 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
1902 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
1903 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
1904 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
1905 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
1906 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
1907 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
1908 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
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 504.00 u 1500.07 a 1341.94 e 510.56 c 408.68 a 52.50 20.15 a 5.54 c 240.50 774.50 866.00 1293.00 7013.44
1914 1507.50 1759.00 1117.00 628.50 243.50 48.00 5.50 g 75.50 164.50 396.00 929.50 1707.50 8576.50
1915 1753.50 1246.50 1358.50 393.21 b 431.00 170.00 85.50 88.00 244.66 a 470.00 968.00 1428.00 8636.87
1916 2044.50 1607.00 1190.00 703.00 202.50 k 192.50 0.00 72.00 266.25 b 677.50 1037.00 1857.50 9647.25
1917 1873.50 1714.00 1220.50 736.00 377.50 142.24 a 21.00 55.00 212.00 845.50 770.50 1776.50 9744.24
1918 1928.00 1387.00 840.50 660.50 283.00 76.50 31.00 10.00 323.50 459.50 966.00 1379.50 8345.00
1919 1376.50 1453.50 1245.00 596.50 285.00 70.34 a 2.00 13.50 169.82 b 742.40 b 1348.00 1691.00 8993.56
1920 1778.00 1393.50 1121.00 887.00 264.50 87.50 21.50 35.50 139.00 417.00 1062.00 1397.50 8604.00
1921 1390.00 1169.50 1087.50 566.50 275.00 38.50 12.00 30.00 181.00 506.50 1309.50 1409.50 7975.50
1922 1700.50 1742.50 1112.00 604.50 215.00 34.00 36.50 9.00 148.00 492.50 949.50 1623.50 8667.50
1923 1576.50 1588.00 1299.50 686.00 275.00 60.50 0.50 34.50 120.50 595.00 822.00 1271.50 8329.50
1924 1873.00 1249.50 1164.50 635.00 530.00 144.00 18.00 37.00 230.50 300.00 965.50 1886.50 9033.50
1925 1750.50 1281.50 958.50 383.00 371.00 103.50 37.50 8.50 132.50 921.00 1077.50 1488.50 8513.50
1926 1523.00 1128.50 1150.00 642.50 159.13 a 109.50 12.00 17.00 288.00 586.50 1205.17 a 1592.50 8413.81
1927 1588.50 1253.00 1006.50 598.50 430.00 132.93 a 36.68 a 74.00 261.00 466.50 1193.50 2030.50 9071.61
1928 1628.00 1278.00 1018.00 799.50 171.50 163.50 7.23 a 50.00 292.00 564.00 969.50 1291.00 8232.23
1929 2102.00 1702.00 982.00 657.00 436.50 109.00 8.50 15.50 325.00 537.50 1153.00 1566.50 9594.50
1930 1998.00 1075.00 1098.00 533.00 382.50 84.00 12.00 13.43 a 234.00 645.83 a 1023.50 1335.50 8434.77
1931 1269.45 a 1012.00 1094.50 539.00 379.75 a 48.50 14.50 26.50 97.00 437.50 967.50 1345.50 7231.70
1932 1634.00 1369.50 1358.50 581.38 a 255.00 4.14 a 19.00 15.50 184.50 706.28 a 1124.00 1601.50 8853.30
1933 1456.50 1517.50 1028.50 657.50 257.82 a 11.00 2.00 17.00 82.76 a 615.50 1057.50 1583.00 8286.58
1934 1452.50 1241.00 1155.50 621.50 103.00 28.00 8.00 38.00 281.00 397.50 880.00 1530.50 7736.50
1935 1814.50 1049.00 1037.98 a 747.00 389.50 124.00 0.00 66.13 a 124.50 551.50 1258.00 1559.00 8721.12
1936 2156.50 2152.00 1095.00 778.00 151.50 42.00 0.00 5.50 138.50 587.45 a 1176.50 1487.00 9769.95
1937 2149.00 1579.50 1209.50 706.00 195.00 90.50 5.00 2.00 170.00 568.50 1091.00 1610.50 9376.50
1938 1694.00 1474.50 943.50 574.00 331.00 51.50 0.00 4.00 89.00 342.00 1137.41 a 1372.50 8013.41
1939 1488.50 1756.50 1117.50 652.00 107.50 56.50 1.50 21.00 193.00 577.00 861.50 1125.00 7957.50
1940 1920.00 1419.00 1221.00 609.50 273.00 47.50 4.00 49.50 136.50 330.50 1152.41 a 1307.50 8470.41
1941 1610.50 1469.50 1178.00 472.00 144.00 106.00 21.50 23.00 183.50 530.00 948.62 a 1241.00 7927.62
1942 1403.00 1301.50 959.50 440.50 374.50 87.50 22.00 20.00 314.00 519.50 990.00 1614.00 8046.00
1943 2001.00 1365.50 1422.50 505.00 359.50 115.50 0.00 18.50 224.50 418.00 1053.00 1300.00 8783.00
1944 1265.50 1469.50 1317.50 694.00 199.50 70.00 17.00 37.50 179.50 456.00 940.50 1447.00 8093.50
1945 1550.00 1344.00 824.00 701.50 304.50 g 0.00 z 34.00 12.00 241.00 511.50 0.00 z 1741.00 6959.00
1946 1687.50 1464.00 844.00 442.00 361.00 84.00 0.50 52.70 a 196.50 613.00 1047.93 a 1439.50 8232.63
1947 1340.50 1477.00 1207.00 720.50 399.00 93.50 22.00 13.00 197.50 304.32 a 1241.00 1581.00 8596.32
1948 1757.00 1593.00 1241.03 a 503.00 237.00 66.00 4.50 16.50 68.00 504.50 974.50 1505.00 8470.03
1949 1778.50 1547.00 1163.00 511.50 210.80 a 53.50 8.00 22.22 a 239.50 274.50 o 783.50 1115.50 g 6317.52
1950 2081.65 a 1417.00 1248.78 a 847.80 e 386.95 c 59.50 25.50 62.50 g 168.00 292.00 p 1261.67 c 1168.00 i 7496.85
1951 1886.87 a 0.00 z 0.00 z 0.00 z 261.12 e 186.00 42.00 46.50 a 302.68 b 627.50 1183.50 1762.72 b 6298.88
1952 1820.50 1364.00 1393.97 a 546.00 277.00 40.00 4.50 19.63 a 149.50 614.50 992.50 988.00 i 7222.10
1953 1614.07 a 1295.50 1065.50 766.11 c 345.13 a 93.50 24.50 9.82 a 185.50 345.00 869.00 1447.00 8060.63
1954 1946.50 958.50 1186.00 609.64 b 446.40 a 88.50 12.50 14.98 a 204.31 a 580.50 871.07 b 1339.50 8258.41
1955 1614.07 a 1554.00 1265.50 394.29 b 157.58 a 82.24 a 4.00 13.00 214.50 494.50 1350.00 1778.50 8922.18
1956 1736.50 1610.54 a 1250.00 851.00 308.93 b 0.54 b 15.50 31.50 230.00 346.74 d 1060.86 a 1405.33 a 8847.44
1957 1862.58 a 1349.00 1118.00 641.00 349.55 b 81.00 0.00 32.50 260.00 546.50 1052.50 1277.50 8570.13
1958 1424.89 c 1453.00 1091.50 609.00 239.70 c 196.03 a 50.12 a 40.00 159.50 512.50 1040.50 1656.29 c 8473.03
1959 1815.00 1586.67 a 1000.78 a 624.00 353.92 a 45.00 10.00 1.55 a 229.66 a 737.00 1294.00 1219.50 8917.07
1960 1670.50 1520.00 1501.00 670.00 298.00 92.07 a 20.00 12.50 217.00 533.00 988.00 1679.68 a 9201.75
1961 1752.50 1282.50 912.50 775.86 a 386.50 52.50 23.50 6.00 293.50 483.50 995.00 1663.00 8626.86
1962 1789.73 a 1532.50 1244.00 664.50 249.00 73.00 30.50 21.00 278.50 485.00 901.50 1434.00 8703.23
1963 1949.00 1424.00 922.50 581.00 311.50 35.50 5.50 30.50 126.00 282.00 919.50 1762.50 8349.50
1964 1524.50 1249.00 1319.50 419.50 g 232.00 81.00 5.00 77.00 258.50 530.50 1072.00 1769.00 8118.00
1965 1915.50 1508.50 1458.00 654.50 266.00 52.00 12.50 41.50 480.50 455.00 1040.00 1285.00 9169.00
1966 2049.00 1531.50 963.50 804.50 354.00 101.50 0.00 89.50 246.50 590.00 1188.00 1459.00 9377.00
1967 1589.00 1511.46 b 991.00 642.00 429.00 81.50 42.00 36.50 138.50 568.00 1046.00 1500.50 8575.46
1968 1684.50 1465.50 832.50 584.00 369.50 68.50 22.50 47.00 183.00 500.50 980.50 1663.50 8401.50
1969 1958.00 1335.50 1477.50 508.00 249.50 172.00 11.00 1.50 128.00 689.00 974.50 1423.00 8927.50
1970 1937.50 1391.50 1310.50 650.00 251.00 38.50 7.00 11.00 204.50 522.00 1124.00 1610.00 9057.50
1971 1943.00 1447.50 1072.50 519.00 295.50 30.50 52.00 13.00 231.50 488.00 1030.00 1634.50 8757.00
1972 1890.00 1668.00 1176.00 661.50 231.50 61.50 23.00 36.00 193.00 630.00 0.00 z 1794.00 8364.50
1973 1527.00 1214.50 0.00 z 617.50 262.00 44.50 13.50 0.00 230.00 381.50 1095.50 1590.00 6976.00
1974 1767.00 1336.50 1100.50 573.50 330.00 82.50 3.50 59.00 242.00 450.00 995.50 1309.50 8249.50
1975 1576.50 1477.50 1317.00 847.50 237.00 78.00 23.00 18.60 a 228.50 444.00 936.50 1436.50 8620.60
1976 1688.50 1161.00 1093.00 479.40 e 246.00 37.50 6.50 4.00 167.00 696.50 1182.50 1625.00 8386.90
1977 2055.50 1184.50 944.00 387.00 56.50 32.00 6.50 35.00 171.50 516.00 1131.50 1685.50 8205.50
1978 2050.00 1629.50 1180.00 633.50 205.00 68.50 7.50 19.63 a 141.00 506.50 1200.50 1689.50 9331.13
1979 2094.50 1746.50 1261.50 769.50 399.50 52.50 10.85 a 0.00 z 106.50 567.50 1125.50 1219.00 9353.35
1980 1643.52 a 1471.00 1238.00 447.41 a 182.50 27.00 3.00 18.00 178.00 611.00 869.50 1438.00 8126.93
1981 1491.00 1182.00 872.50 441.50 268.50 56.50 7.50 3.50 140.50 548.00 805.50 1638.50 7455.50
1982 2116.00 1485.00 1170.00 669.50 194.50 130.00 0.00 28.50 188.50 526.00 1149.50 1237.00 8894.50
1983 1343.50 1073.00 1027.50 715.50 331.50 78.00 4.00 0.00 172.50 511.00 987.00 2040.50 8284.00
1984 1614.00 1105.50 1221.00 587.50 304.00 30.00 13.50 10.50 296.50 506.50 951.50 1622.00 8262.50
1985 1762.00 1408.50 871.50 442.50 149.00 128.00 0.00 43.00 273.00 556.00 1450.00 1849.00 8932.50
1986 1484.50 1493.50 940.00 581.00 233.00 20.50 0.00 51.00 252.00 521.50 1164.50 1259.00 8000.50
1987 1333.00 953.50 973.00 359.00 112.50 31.00 9.50 64.00 127.00 653.00 897.50 1279.50 6792.50
1988 1720.00 1486.50 991.50 534.50 109.00 3.00 2.00 28.50 164.50 622.00 1081.50 1428.00 8171.00
1989 1549.00 1697.50 1284.00 597.50 227.50 78.50 0.00 17.50 188.00 508.00 1114.00 1781.50 9043.00
1990 1259.00 1224.50 912.00 618.50 294.50 64.50 13.50 20.00 142.50 570.00 916.00 1604.50 7639.50
1991 1694.50 1092.00 978.50 476.50 217.00 12.50 8.50 1.00 207.00 597.50 1204.50 1331.50 7821.00
1992 1380.00 1092.00 902.00 653.50 203.00 90.00 75.00 86.50 192.00 567.00 1128.50 1597.50 7967.00
1993 1742.00 1527.50 1172.00 657.00 273.50 144.00 27.50 42.00 289.50 600.50 1175.00 1478.50 9129.00
1994 2069.50 1643.50 1071.50 588.00 191.50 34.00 20.50 47.50 146.50 455.50 923.00 1372.50 8563.50
1995 1637.50 1381.50 1151.50 789.00 339.50 58.00 19.00 2.50 238.50 613.50 1148.50 1521.00 8900.00
1996 1918.00 1416.50 1365.00 734.00 358.00 48.50 25.50 4.00 240.00 545.50 1395.00 1819.50 9869.50
1997 1911.50 1366.50 1250.00 766.50 337.00 6.50 24.00 37.50 112.50 469.13 a 1170.00 1261.00 8712.13
1998 1576.00 996.50 1249.50 492.00 128.50 114.50 2.50 1.50 87.00 490.50 983.50 1333.50 7455.50
1999 1726.50 1045.00 918.50 555.50 235.00 68.00 2.50 8.00 246.50 565.50 740.00 1203.00 7314.00
2000 1517.50 1073.00 787.00 601.00 190.00 64.50 15.00 5.50 147.50 399.00 1184.00 1861.50 7845.50
2001 1434.78 a 1571.50 1196.50 588.50 151.50 55.50 4.00 3.00 128.00 512.50 687.00 1297.50 7630.28
2002 1383.00 1024.50 1340.50 638.50 384.50 21.00 3.00 20.00 142.50 776.50 988.50 1295.00 8017.50
2003 1596.50 1431.50 1112.50 502.50 262.00 49.00 0.00 5.50 191.50 428.00 1154.00 1274.00 8007.00
2004 1714.00 1311.00 875.00 502.50 280.50 79.00 30.50 57.50 100.50 455.00 844.50 1277.50 7527.50
2005 1682.27 a 1142.00 1021.00 419.50 302.00 9.50 6.00 9.00 72.50 446.00 890.50 1451.00 7451.27
2006 1177.50 1298.37 a 1033.00 384.00 213.50 25.50 0.00 0.50 228.50 615.50 951.50 1188.00 7115.87
2007 1548.50 1539.48 a 928.97 a 668.00 114.00 19.00 1.00 24.50 142.00 405.50 956.00 1569.50 7916.45
2008 1645.07 a 1475.50 1089.00 666.00 263.00 61.00 2.50 5.00 142.00 531.50 939.50 1671.42 a 8491.48
2009 1806.78 a 1370.00 1175.00 638.00 255.00 101.50 17.50 29.50 68.00 735.50 741.50 1649.00 8587.28
2010 1679.50 1481.00 875.00 348.00 277.00 17.50 0.00 6.50 179.00 407.00 958.00 1628.50 7857.00
2011 1854.50 1492.50 1308.00 639.50 292.50 43.00 0.00 0.00 166.00 419.50 934.50 1201.00 8351.00
2012 1326.50 788.00 j 623.50 464.00 165.00 27.00 2.50 11.50 180.50 604.50 971.00 1479.50 5855.50
2013 1603.00 1386.50 966.50 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 2989.50
Period of Record Statistics
MEAN 1701.15 1398.71 1119.64 608.04 275.58 70.47 14.14 26.19 195.50 533.32 1037.32 1512.85 8428.47
S.D. 235.14 212.12 174.95 121.74 92.15 43.60 15.57 22.52 68.41 115.66 149.50 204.01 608.90
SKEW -0.04 0.13 -0.06 -0.02 0.06 0.89 1.97 1.04 0.70 0.49 0.26 0.29 -0.06
MAX 2156.50 2152.00 1501.00 887.00 530.00 196.03 85.50 89.50 480.50 921.00 1450.00 2040.50 9869.50
MIN 1177.50 953.50 623.50 348.00 56.50 0.54 0.00 0.00 68.00 282.00 687.00 1125.00 6792.50
NO YRS 103 102 99 99 100 100 99 98 101 98 98 98 87