HILLSBORO 3 N, NORTH DAKOTA

Monthly Total Heating Degree Days

(324203)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201209
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
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 1025.00 1547.50 2572.50
1906 1658.50 1623.50 1386.50 502.50 405.00 74.00 26.00 56.50 108.50 631.00 1153.00 1805.50 9430.50
1907 2160.00 1552.00 1301.00 965.50 599.50 99.50 9.50 55.50 335.50 650.00 1039.00 1424.00 10191.00
1908 1545.00 1504.00 1382.00 593.00 385.00 120.50 28.50 58.00 163.50 586.50 966.00 1590.50 8922.50
1909 1863.00 1555.00 1238.50 879.00 361.00 64.00 8.00 22.50 181.50 633.50 1123.50 0.00 z 7929.50
1910 1683.00 1634.50 710.50 515.50 430.00 96.00 3.00 63.00 198.00 459.00 1237.00 1835.00 8864.50
1911 2059.00 1606.00 1029.00 661.50 249.00 17.00 37.50 90.00 259.00 639.50 1400.00 1534.00 9581.50
1912 2240.50 1550.00 1396.00 554.50 250.50 142.00 33.00 57.50 347.50 582.00 962.00 1442.00 9557.50
1913 1988.65 a 1598.00 1457.00 495.50 421.50 71.00 25.50 3.50 230.00 720.50 912.50 1299.50 9223.15
1914 1591.50 1860.96 a 1194.00 736.00 259.00 68.50 5.50 103.50 149.00 389.00 1013.00 1821.25 a 9191.21
1915 1877.50 1316.00 1232.50 407.50 378.50 206.50 52.50 62.50 237.00 513.00 1100.00 1536.00 8919.50
1916 2164.00 1783.50 1422.00 753.00 409.00 184.50 4.00 62.50 278.00 749.00 1056.00 1920.00 10785.50
1917 2081.50 1869.00 1281.50 802.50 411.50 190.00 33.00 67.50 259.00 944.50 901.50 2037.98 b 10879.48
1918 2079.00 1513.00 899.50 666.00 343.30 d 88.50 59.00 7.50 397.50 535.00 1027.00 1530.00 9145.30
1919 1584.50 1600.00 1374.00 673.00 326.50 85.50 5.50 54.25 a 175.50 924.50 1492.50 1861.00 10156.75
1920 2074.00 1620.00 1303.50 969.50 297.00 101.50 16.00 32.00 156.50 455.00 1096.00 1544.00 9665.00
1921 1574.50 1296.96 c 1266.00 644.50 325.50 69.50 0.00 36.00 184.00 522.00 1332.00 1608.38 a 8859.34
1922 1873.78 d 1804.92 b 1197.50 684.50 199.36 b 87.22 c 38.75 a 20.67 a 196.00 557.00 951.60 e 1825.12 c 9436.43
1923 1807.76 d 1760.96 e 1516.50 759.64 b 344.21 b 52.50 6.09 c 109.00 165.52 a 591.77 c 907.50 b 1364.53 b 9385.97
1924 2028.71 e 1304.00 1118.00 660.00 a 392.00 i 123.00 e 44.43 a 55.00 259.00 391.24 b 1092.00 1970.64 b 9046.02
1925 1820.14 c 1370.88 c 1128.00 471.50 391.50 100.00 45.00 11.00 180.50 924.00 1103.00 1580.50 9126.02
1926 1188.50 g 1225.00 1270.50 652.24 a 189.50 172.00 18.08 a 24.50 346.55 a 663.40 a 1296.00 1741.54 c 7599.31
1927 1697.50 1426.96 a 1027.65 a 660.50 433.48 a 115.00 17.05 a 63.00 256.03 a 530.32 c 1253.50 1971.00 9452.00
1928 1626.00 1325.50 1162.00 805.00 203.50 140.00 4.00 56.50 0.00 z 0.00 z 0.00 z 448.50 t 5322.50
1929 2179.00 1695.50 1025.67 b 655.50 443.00 98.50 11.00 14.00 307.00 541.00 1220.17 a 1688.50 9878.84
1930 2052.41 b 1213.00 1184.50 514.50 388.00 52.20 e 8.86 c 23.50 294.00 e 722.82 a 1107.93 a 806.50 n 7561.72
1931 1538.50 1128.00 1211.00 647.00 397.83 a 70.00 16.50 93.00 b 151.11 c 515.08 e 1021.00 1421.50 8210.52
1932 1684.00 1541.50 1436.50 680.00 257.50 10.50 28.50 15.50 238.00 760.50 1283.50 1701.00 9637.00
1933 1741.50 1605.50 992.00 f 709.50 306.00 17.50 6.20 a 27.00 135.00 715.50 1244.50 1822.00 8330.20
1934 1607.00 1391.50 1257.00 638.50 159.50 60.00 13.00 89.00 354.00 512.50 922.00 1667.80 a 8671.80
1935 2033.00 1166.00 1129.00 804.50 425.00 130.00 0.00 66.50 245.00 637.50 1469.50 1675.00 9781.00
1936 2238.00 2234.50 1294.25 a 874.00 164.00 75.00 1.50 23.50 167.00 712.50 1187.50 1603.50 10575.25
1937 2265.00 1650.50 1322.50 725.00 245.50 105.00 18.00 8.50 237.50 693.00 1210.00 1726.00 10206.50
1938 1803.50 1570.00 897.50 648.00 386.97 b 73.50 4.00 5.50 151.00 540.00 1281.00 1585.00 8945.96
1939 1708.00 1909.00 1387.50 767.50 168.50 106.55 a 1.00 24.00 k 0.00 z 0.00 z 0.00 z 0.00 z 6048.05
1940 0.00 z 172.50 z 1402.50 744.00 308.00 102.00 5.00 56.50 148.50 413.50 1212.00 1461.50 5853.50
1941 1704.00 1549.50 1260.50 539.50 187.00 95.00 19.50 30.50 258.00 589.00 1005.00 1383.00 8620.50
1942 1457.00 1465.50 987.00 531.00 391.50 114.00 27.50 37.00 350.00 537.00 1125.00 1766.00 8788.50
1943 2047.00 1450.50 1425.00 618.00 422.00 136.50 1.50 23.00 284.50 523.38 a 1064.00 1383.50 9378.88
1944 1377.50 1550.00 1401.50 718.50 262.00 96.50 28.00 49.60 a 216.00 524.00 983.50 1525.50 8732.60
1945 1705.00 1391.50 913.00 775.50 513.50 181.50 40.00 23.50 308.50 623.00 1181.50 1783.00 9439.50
1946 1789.73 a 1613.00 907.27 a 499.50 400.00 97.00 12.00 48.50 264.50 673.00 1118.00 1636.50 9059.00
1947 1509.00 1557.00 1257.50 753.00 437.00 126.50 14.50 12.00 272.00 366.50 1290.50 1672.00 9267.50
1948 1913.00 1745.00 1495.50 689.00 300.00 83.00 0.00 z 18.00 96.21 a 513.00 1078.00 1697.50 9628.21
1949 1897.00 1767.77 b 1324.50 561.00 268.00 77.00 15.00 35.50 269.50 592.00 928.50 1716.00 9451.77
1950 2310.00 1658.00 1421.50 994.50 479.00 97.00 34.21 b 115.50 189.00 580.00 1260.50 1794.26 b 10933.47
1951 1971.50 1470.50 1494.50 770.00 233.50 169.50 26.00 77.50 328.50 693.50 1316.38 a 1827.50 10378.88
1952 1974.00 1389.50 1355.50 404.50 k 304.50 45.00 17.00 37.00 165.50 654.62 a 981.00 1440.98 a 8364.60
1953 1641.50 1309.00 1145.00 803.50 345.00 111.00 13.00 h 13.00 223.97 a 370.50 913.50 1511.00 8386.96
1954 2066.50 1061.00 1215.00 702.00 455.00 97.00 22.50 29.50 243.50 609.00 899.00 1401.50 8801.50
1955 1728.00 1648.00 1524.00 409.66 a 195.50 69.00 4.00 5.34 b 229.00 522.00 1382.00 1864.00 9580.50
1956 1817.00 1727.00 1425.50 910.20 e 346.00 25.80 e 39.27 a 38.00 284.00 407.50 1014.31 a 1491.74 b 9526.32
1957 1910.00 1461.00 1174.50 689.00 265.00 92.50 0.50 35.00 268.00 577.50 1072.00 1333.00 a 8878.00
1958 1468.00 1443.00 1090.50 591.50 240.00 182.50 41.00 49.00 166.55 a 510.47 a 1084.00 1706.00 8572.52
1959 1915.80 a 1551.50 1068.50 623.50 327.00 51.50 8.00 11.88 a 225.00 752.00 1329.00 1246.00 9109.68
1960 1719.47 a 1535.50 1516.23 c 725.50 294.50 b 78.62 a 13.50 9.50 185.50 508.50 1029.00 1686.40 a 9302.22
1961 1760.00 1312.50 961.00 795.50 361.00 35.69 a 5.50 5.68 a 295.00 533.00 1015.34 a 1737.00 8817.22
1962 1870.33 a 1644.50 1344.00 808.00 299.00 45.56 c 17.50 18.60 a 253.00 446.50 933.75 b 1471.00 9151.74
1963 1891.50 1483.50 990.50 622.50 330.50 45.50 0.00 15.50 115.50 247.50 922.00 1783.00 8447.50
1964 1568.50 1333.00 1379.00 613.00 191.00 109.50 0.50 91.00 293.50 311.00 n 1020.00 a 1912.00 8511.00
1965 2001.00 1608.50 1521.50 736.00 317.50 55.50 11.00 53.00 445.00 475.50 1106.00 1360.00 9690.50
1966 2198.50 1626.50 1126.00 816.50 367.50 74.50 0.00 66.00 205.00 604.00 1272.93 a 1634.00 9991.43
1967 1728.25 a 1677.00 1136.00 822.50 461.50 83.00 29.00 44.00 168.50 613.00 1056.50 1509.50 9328.75
1968 1783.00 1598.50 961.50 612.50 358.50 62.50 25.50 36.50 181.50 546.50 999.64 b 1703.50 8869.64
1969 2018.00 1457.00 1532.00 554.50 287.50 201.50 16.50 8.50 186.00 736.00 978.50 1517.50 9493.50
1970 1974.00 1504.00 1480.00 736.00 390.50 32.50 0.50 16.50 229.50 567.00 1152.41 a 1731.50 9814.41
1971 2032.00 1471.50 1234.00 590.50 309.00 17.50 36.00 29.00 218.50 527.50 1120.50 1633.00 9219.00
1972 1947.50 1759.50 1276.00 714.00 216.50 49.00 32.00 42.50 298.93 b 699.00 1119.00 1822.00 9975.93
1973 1641.50 1361.50 882.00 646.50 242.00 56.50 14.00 0.50 218.00 422.50 1185.00 1687.50 8357.50
1974 1985.50 1517.92 b 1332.00 657.50 387.50 61.50 6.00 57.00 273.50 510.50 1032.50 1366.50 9187.92
1975 1658.00 1515.00 1422.00 857.00 228.50 50.50 8.50 15.50 226.00 486.50 1019.00 1579.50 9066.00
1976 1733.93 a 1259.50 1262.50 509.50 224.00 39.50 3.50 5.50 187.50 726.50 1205.50 1793.50 8950.93
1977 2092.00 1299.50 1041.00 430.00 66.00 13.00 0.00 80.50 211.03 a 0.00 z 1222.24 a 1820.50 8275.78
1978 2077.00 1670.50 1250.00 670.00 163.50 61.00 11.00 18.50 150.00 530.00 1271.00 1778.37 a 9650.87
1979 2161.50 1880.00 1365.00 887.50 455.00 60.50 4.50 40.50 96.96 b 652.00 1199.50 1349.00 10151.96
1980 1800.50 1623.00 1352.00 457.00 178.50 48.50 2.50 29.50 255.50 670.00 950.00 1621.00 8988.00
1981 1627.50 1274.52 a 1004.50 666.67 c 312.00 129.50 28.00 17.71 c 337.00 771.50 962.50 1773.50 8904.90
1982 2310.53 a 1631.50 1379.00 0.00 z 0.00 z 194.00 3.50 89.50 315.00 647.00 1261.00 1384.15 a 9215.18
1983 1542.00 1297.50 1140.00 548.00 g 451.00 137.00 0.00 z 0.00 300.50 654.50 1025.00 2054.00 8601.50
1984 1778.50 1223.50 0.00 z 0.00 z 0.00 z 0.00 z 13.43 a 11.50 297.50 533.72 a 1102.00 1722.10 b 6682.25
1985 1854.12 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 14.50 31.00 331.00 635.50 1518.10 a 1866.09 c 6250.31
1986 1639.38 a 1557.50 1048.32 a 669.00 256.27 a 54.83 a 0.00 60.50 239.50 580.50 1301.00 1425.50 8832.29
1987 1453.00 1068.00 1139.50 435.00 178.00 46.00 19.50 69.50 200.00 717.50 980.50 1438.50 7745.00
1988 1926.00 1653.00 1127.22 b 486.00 g 149.66 b 20.00 10.50 32.50 294.11 b 723.00 1131.50 1600.12 a 8667.60
1989 1668.50 1775.00 1478.00 754.00 287.00 113.50 0.00 29.00 257.00 593.50 1259.50 1790.00 10005.00
1990 1376.83 b 1314.00 1075.00 695.00 319.50 78.00 7.00 13.50 202.00 608.50 1003.50 1696.50 8389.33
1991 1830.00 1192.00 1097.00 553.50 248.00 13.00 15.00 6.50 260.50 731.00 1286.50 1483.00 8716.00
1992 1518.50 1298.50 1020.50 788.50 258.50 138.50 97.50 95.50 340.00 662.50 1192.00 1730.00 9140.50
1993 1882.50 1562.50 1276.00 716.00 329.00 166.00 68.00 44.00 377.00 731.50 1231.00 1603.00 9986.50
1994 2184.00 1786.00 1125.50 716.50 265.00 28.50 31.00 74.00 189.00 516.00 978.50 1422.50 9316.50
1995 1746.50 1493.00 1243.00 833.50 362.00 44.50 33.50 7.00 273.00 652.00 1330.50 1692.50 9711.00
1996 2044.00 1614.50 1494.00 856.50 371.00 73.00 11.00 15.50 257.00 647.00 1476.50 1867.50 10727.50
1997 2006.50 1483.50 1429.00 875.50 450.50 16.50 56.00 73.00 178.00 635.00 1201.50 1228.50 9633.50
1998 1677.00 1066.00 1196.50 468.50 156.00 122.50 4.50 0.50 115.00 555.00 1085.00 1476.50 7923.00
1999 1852.25 a 1239.00 1126.50 610.50 280.00 89.50 23.50 38.50 273.50 653.00 835.50 1309.00 8330.75
2000 1732.50 1252.00 900.50 698.00 251.00 142.00 26.00 23.50 244.00 545.08 a 1139.00 1922.50 8876.08
2001 1574.00 1664.50 1251.00 688.50 244.50 88.00 23.00 20.00 0.00 z 0.00 z 738.21 b 0.00 z 6291.71
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 193.00 0.00 z 0.00 z 0.00 z 193.00
2003 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 16.02 a 251.50 497.00 1225.00 1366.50 3356.02
2004 1931.00 1448.00 1136.15 a 645.00 418.00 114.31 a 55.00 96.00 140.00 536.00 923.50 1490.07 a 8933.03
2005 1830.50 1329.50 1142.00 462.50 335.00 16.50 14.50 0.00 z 129.50 515.00 0.00 z 1427.00 7202.00
2006 1250.50 1484.50 1160.50 436.00 232.50 21.50 1.00 0.00 z 0.00 z 0.00 z 1028.50 1265.50 6880.50
2007 1624.50 0.00 z 1075.00 647.00 196.50 35.50 6.50 39.00 207.50 487.00 1024.50 1680.50 7023.50
2008 1800.50 1673.00 1281.50 0.00 z 343.00 95.50 3.50 15.50 0.00 z 544.50 0.00 z 1844.00 7601.00
2009 1932.50 1472.50 1288.50 701.38 a 359.00 112.00 20.50 40.00 66.50 752.50 789.50 0.00 z 7534.88
2010 1743.20 c 1462.50 923.28 a 386.00 266.00 34.50 0.00 11.50 0.00 z 0.00 z 0.00 z 0.00 z 4826.98
2011 1878.60 a 1475.92 b 1345.63 d 649.14 a 321.62 c 22.50 f 1.03 a 1.07 b 178.93 b 416.90 b 932.07 a 1262.22 a 8463.13
2012 1376.63 d 996.00 f 762.94 d 503.33 c 172.80 d 29.46 b 0.00 z 0.00 z 216.50 0.00 z 0.00 z 0.00 z 3061.67
Period of Record Statistics
MEAN 1828.77 1510.34 1223.12 671.60 312.65 85.81 17.91 38.62 232.59 592.02 1112.84 1622.61 9318.27
S.D. 229.94 203.85 185.55 134.23 96.14 47.65 17.39 28.38 71.58 120.10 157.92 194.95 657.10
SKEW -0.02 0.18 -0.38 0.00 0.11 0.58 1.59 0.74 0.23 0.28 0.34 -0.04 0.34
MAX 2310.53 2234.50 1532.00 994.50 599.50 206.50 97.50 115.50 445.00 944.50 1518.10 2054.00 10933.47
MIN 1250.50 1061.00 710.50 386.00 66.00 10.50 0.00 0.00 66.50 247.50 738.21 1228.50 7745.00
NO YRS 103 101 102 98 101 102 101 102 101 98 101 99 78