PINE RIVER DAM, MINNESOTA

Monthly Total Heating Degree Days

(216547)

Base Temperature = 65 F

File last updated on Apr 6, 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
1893 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
1894 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
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 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
1897 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 60.50 v 115.50 g 540.95 a 233.50 w 1759.00 2299.95
1898 1578.00 1435.00 1179.50 744.00 370.00 83.79 a 48.50 68.00 241.50 738.50 1196.00 1773.50 9456.29
1899 1893.50 1792.50 1699.50 741.50 447.50 104.50 7.00 53.50 353.50 596.50 813.50 1525.00 10028.00
1900 1555.50 1777.00 1424.50 480.50 286.00 86.00 36.50 2.00 247.00 334.50 1230.00 1542.00 9001.50
1901 1796.00 1674.00 1302.00 633.50 282.00 131.00 23.50 27.50 298.50 511.50 1103.50 1613.00 9396.00
1902 1675.50 1444.00 1031.50 801.00 341.50 108.50 16.00 38.50 346.00 628.00 977.50 1664.50 9072.50
1903 1857.00 1676.50 1206.50 745.00 330.50 119.00 49.00 150.00 344.00 616.50 1217.50 1897.50 10209.00
1904 2017.50 1988.50 1407.00 865.50 353.50 117.50 36.50 74.00 329.50 627.50 913.50 1610.00 10340.50
1905 2013.00 1670.00 1086.50 797.00 499.00 208.00 96.50 23.50 222.50 711.45 a 1030.00 1487.50 9844.95
1906 1537.50 1570.50 1499.00 537.00 471.50 114.50 28.50 72.50 130.00 609.00 1061.00 1677.50 9308.50
1907 2075.00 1207.00 1267.00 993.50 681.00 132.00 12.50 53.50 316.50 698.50 1060.00 1504.50 10001.00
1908 1647.00 1431.50 1295.00 688.50 419.00 141.50 39.00 81.00 191.00 609.50 991.50 1595.00 9129.50
1909 1819.00 1586.00 1296.00 999.50 447.50 62.50 26.00 15.50 201.11 c 672.50 982.00 1731.50 9839.11
1910 1733.50 1706.00 843.00 524.00 438.00 118.50 14.50 67.00 187.00 459.50 1236.50 1687.84 c 9015.34
1911 1939.50 1428.00 1059.50 703.50 256.50 36.50 17.50 127.50 313.50 709.50 1429.50 1469.50 9490.50
1912 2348.50 1684.00 1521.00 672.00 336.50 168.00 45.00 144.50 320.00 587.50 1006.00 1482.50 10315.50
1913 1935.00 1664.00 1514.00 622.50 455.50 81.50 33.00 24.00 267.50 689.50 826.50 1246.00 9359.00
1914 1588.50 1867.50 1241.50 779.00 240.50 112.00 2.50 75.00 177.00 375.50 962.00 1752.50 9173.50
1915 1862.50 1277.50 1227.00 393.50 427.50 185.00 73.50 110.00 213.00 496.50 1056.50 1486.00 8808.50
1916 2031.00 1766.50 1412.50 784.50 400.50 158.00 0.00 54.50 268.50 738.50 1062.00 1840.00 10516.50
1917 2009.00 1834.50 1326.50 875.50 459.00 196.00 33.00 104.50 274.00 942.00 908.50 1851.00 10813.50
1918 2072.00 1525.00 995.00 759.50 333.50 96.00 35.50 23.00 413.00 590.00 957.50 1323.50 9123.50
1919 1521.07 a 1536.00 1273.50 728.50 382.00 60.50 5.00 53.00 224.50 839.00 1328.00 1826.93 a 9778.00
1920 1963.00 1629.00 1221.50 967.00 362.50 119.50 17.50 63.00 156.50 438.50 1098.50 1426.00 9462.50
1921 1561.50 1278.00 1221.00 597.50 318.50 80.00 0.00 45.50 204.00 548.50 1272.00 1501.50 8628.00
1922 1243.50 j 1727.00 1234.00 740.00 194.00 54.00 38.00 41.50 207.50 544.50 890.50 1701.00 7372.00
1923 1717.50 1779.50 1605.50 819.50 354.50 57.00 10.00 0.00 z 210.50 608.50 898.50 1331.00 9392.00
1924 2039.00 1442.50 1238.00 794.00 598.00 183.50 69.50 111.00 361.50 435.00 1120.50 1941.50 10334.00
1925 1873.00 1565.00 1260.00 661.00 570.00 239.50 128.50 99.50 324.00 1079.00 1229.00 1740.00 10768.50
1926 1762.00 1362.00 1415.50 770.00 270.00 173.00 29.50 70.00 373.00 680.50 987.00 f 1701.00 8606.50
1927 1794.00 1414.00 1120.50 706.00 526.50 169.00 73.00 151.50 250.00 591.50 1246.00 1975.50 10017.50
1928 1761.00 1464.00 1296.00 901.50 303.00 204.00 27.50 96.00 369.50 603.00 947.50 1373.50 9346.50
1929 2175.00 1711.00 1129.00 724.00 490.50 163.50 29.50 75.00 341.00 413.00 i 1176.00 1657.00 9671.50
1930 2049.50 1277.00 1241.07 b 684.50 366.00 65.50 22.50 25.50 238.50 674.50 1005.00 1460.50 9110.07
1931 1446.50 1122.50 1203.50 647.50 406.00 82.00 22.50 85.00 153.50 435.50 878.50 1229.50 7712.50
1932 1558.50 1523.00 1512.50 724.50 338.00 28.50 34.00 36.50 258.00 e 729.00 1185.50 1691.50 9619.50
1933 1559.50 1681.00 1258.50 771.50 331.00 24.50 1.00 76.00 181.00 744.00 1218.00 1796.00 9642.00
1934 1618.50 1551.00 1383.50 781.50 242.50 100.00 52.59 c 143.00 381.50 534.50 956.50 1757.50 9502.59
1935 1981.50 1268.00 1230.50 838.50 501.00 211.50 0.50 90.00 435.00 700.00 1300.00 1622.50 10179.00
1936 2126.50 2096.00 1277.00 977.00 270.50 170.50 23.00 102.19 d 235.38 d 774.50 1219.50 1545.50 10817.57
1937 2101.50 1613.00 1420.50 835.50 326.61 c 151.50 21.50 14.50 274.50 723.50 1112.00 1661.00 10255.61
1938 1812.35 d 1404.50 1026.50 707.50 412.62 b 93.00 26.50 14.00 244.50 467.50 1121.50 1533.50 8863.97
1939 1651.50 1760.50 1370.00 823.50 249.50 97.00 22.00 32.50 251.00 661.50 970.50 1241.00 9130.50
1940 1920.00 1445.86 a 1424.00 801.72 a 392.15 a 127.00 39.00 115.00 201.50 496.00 1201.50 1461.50 9625.23
1941 1645.50 1526.52 a 1318.50 538.50 221.00 123.50 27.00 62.50 232.50 547.50 394.50 p 1370.00 7613.02
1942 1502.50 1421.00 1010.60 a 406.00 g 458.00 141.50 56.50 57.50 364.00 609.50 1097.50 1705.52 a 8424.12
1943 1966.00 870.00 j 1484.00 736.00 440.50 4.00 z 1.00 49.50 265.00 f 635.00 1156.00 1407.00 7875.00
1944 1346.50 1504.00 1331.00 827.07 a 399.42 e 98.40 e 20.50 80.50 277.00 606.64 b 929.50 1543.50 8964.03
1945 1769.00 1496.50 992.50 794.00 530.50 266.00 61.50 63.50 355.00 667.00 1135.00 1720.00 9850.50
1946 1744.00 1592.50 911.00 611.00 457.00 148.50 29.50 110.00 150.50 l 633.50 1090.50 1633.50 8961.00
1947 1595.50 1603.00 1336.74 b 840.00 537.73 e 175.50 32.50 33.50 307.00 344.50 838.50 i 1604.50 8410.47
1948 1932.00 1651.00 1343.00 640.00 371.00 124.50 27.00 45.47 a 188.50 567.00 1059.00 1684.00 9632.47
1949 1761.12 b 0.00 z 1381.05 a 744.60 e 404.79 e 88.97 a 0.00 z 65.50 0.00 z 546.67 e 965.50 0.00 z 5958.20
1950 0.00 z 1537.00 1438.92 a 1021.00 481.00 111.00 40.00 158.50 249.00 567.50 1229.50 1781.00 8614.42
1951 1898.00 1443.50 1420.83 a 817.50 236.50 174.00 42.00 99.00 346.00 652.00 1280.00 1683.30 a 10092.63
1952 1817.00 1282.00 1344.00 614.50 315.50 39.00 19.00 71.50 231.00 734.70 a 987.50 1355.00 8810.70
1953 1657.00 1439.50 1181.00 797.50 363.00 102.00 38.50 35.00 279.00 413.85 a 922.50 1525.50 8754.35
1954 1953.00 1097.00 1323.00 767.00 516.50 99.31 a 28.42 a 67.00 299.00 651.00 926.50 1369.00 9096.73
1955 1750.50 1596.00 1485.50 514.00 227.50 92.00 9.00 18.60 a 267.00 566.50 1266.50 1820.50 9613.60
1956 1732.00 1629.00 1368.50 838.00 394.00 50.50 42.76 b 39.00 332.00 417.50 992.50 1505.00 9340.76
1957 1973.50 1473.00 1302.00 715.50 349.02 b 124.00 4.00 46.50 b 317.00 611.00 1026.50 1403.00 9345.02
1958 1510.50 1501.00 1127.00 617.50 295.00 240.00 64.00 75.00 227.00 544.50 1021.50 1753.00 8976.00
1959 1949.50 1541.00 1126.00 709.50 290.00 92.50 29.00 19.00 255.50 748.00 1343.28 a 1299.42 a 9402.69
1960 1729.50 1538.00 1516.50 715.50 314.50 133.50 24.50 25.50 269.50 558.50 987.00 1599.50 9412.00
1961 1794.00 1202.96 a 959.00 869.00 399.00 74.50 24.50 22.50 285.00 548.00 1054.50 1605.00 8837.96
1962 1857.00 1537.41 a 1173.50 781.00 291.00 125.00 37.00 40.00 271.50 469.50 905.50 1490.50 8978.91
1963 1972.50 1542.00 1034.50 628.50 385.00 69.50 11.00 49.82 c 159.00 266.00 871.50 1753.50 8742.82
1964 1522.62 a 1380.00 1353.50 633.00 238.59 c 117.86 b 2.50 129.50 290.00 567.30 a 997.50 1746.50 8978.86
1965 1871.00 1600.50 1533.50 741.00 289.00 100.86 a 22.50 68.00 446.00 514.50 1041.00 1298.50 9526.36
1966 2103.50 1465.00 1032.82 a 825.50 459.50 86.50 4.00 83.00 224.00 589.00 1182.00 1577.50 9632.32
1967 1686.00 1667.00 1221.00 732.00 521.00 111.00 45.50 78.00 216.50 635.50 1081.50 1507.63 a 9502.63
1968 1726.00 1589.00 944.00 629.00 398.50 75.00 42.50 61.50 218.00 514.50 1011.50 1622.00 8831.50
1969 1854.00 1356.50 1313.00 635.50 332.50 236.50 41.50 7.00 206.50 684.00 1021.50 1432.00 9120.50
1970 1878.50 1450.50 1375.50 767.50 412.50 56.50 15.50 24.00 239.00 567.00 1086.00 1663.00 9535.50
1971 1974.50 1409.00 1236.50 669.00 413.00 46.00 61.00 87.00 232.00 460.00 1046.50 1558.50 9193.00
1972 1947.50 1680.00 1301.50 849.50 283.43 c 94.50 40.00 70.50 325.50 713.50 1128.50 1815.50 10249.93
1973 1622.50 1372.00 911.00 714.50 386.50 86.00 26.50 15.00 282.50 405.50 1028.50 1573.50 8424.00
1974 1786.00 1388.00 1267.50 682.00 431.50 71.00 1.00 86.00 364.00 585.00 986.50 1364.00 9012.50
1975 1657.50 1448.50 1391.00 907.50 251.00 120.00 17.50 66.00 326.50 506.50 947.50 1572.00 9211.50
1976 1789.00 1200.50 1184.00 516.43 b 306.50 35.50 9.00 40.00 215.50 715.00 1266.50 1548.00 f 7277.93
1977 2113.50 1294.50 976.50 507.41 a 78.00 54.00 13.00 137.50 265.00 593.50 1064.00 1641.45 a 8738.36
1978 1886.50 1588.50 1158.00 707.00 238.00 103.00 30.00 47.50 215.00 563.00 1140.00 b 1694.15 a 9370.65
1979 2053.50 1645.00 1227.50 841.00 464.00 117.00 21.50 91.93 b 185.50 637.00 1038.50 1336.50 9658.93
1980 1736.50 1513.50 1307.50 603.00 210.50 90.00 12.00 34.00 259.14 a 671.50 950.50 1565.50 8953.64
1981 1561.00 1236.00 1007.50 573.00 325.00 79.50 18.00 25.00 251.00 649.00 895.50 1556.00 8176.50
1982 2112.50 1490.00 1290.50 782.50 172.50 155.00 4.50 55.50 223.00 508.50 1118.50 1319.00 9232.00
1983 1543.00 1171.50 1059.50 706.00 373.50 84.50 6.00 0.00 192.50 527.00 1000.50 1977.28 a 8641.28
1984 1710.50 1110.50 1287.00 578.50 325.50 48.00 15.00 8.50 330.50 472.00 1055.50 1597.50 8539.00
1985 1779.00 1509.00 1015.00 535.00 170.50 155.50 11.00 75.50 290.00 628.50 1331.25 b 1886.00 9386.25
1986 1545.50 1464.00 1059.00 548.00 272.50 53.50 9.00 78.00 283.50 561.50 1202.50 1408.50 8485.50
1987 1533.00 1066.50 0.00 z 436.50 200.50 19.00 11.00 58.50 177.00 698.00 910.50 1394.00 6504.50
1988 1905.98 a 1674.50 1150.50 668.50 142.00 31.50 5.50 40.50 218.00 728.00 1079.00 1599.50 9243.48
1989 1599.50 1737.00 1359.00 767.50 302.00 105.50 3.50 30.50 224.00 581.00 1196.00 1878.50 9784.00
1990 1415.00 1393.00 1095.50 712.00 362.00 62.00 17.00 33.50 214.00 706.00 985.00 1683.00 8678.00
1991 1870.50 1279.00 1160.50 596.00 258.50 25.50 23.00 24.00 291.50 691.50 1300.50 1548.00 9068.50
1992 1531.00 1255.00 1129.00 820.50 295.00 147.50 124.50 103.50 281.00 655.00 1129.50 1615.50 9087.00
1993 1775.00 1507.00 1223.50 774.50 357.00 165.50 31.00 40.00 418.00 708.00 1237.00 1568.00 9804.50
1994 2119.50 1674.50 1147.00 719.50 297.00 75.00 26.00 73.50 181.50 513.50 942.00 1383.50 9152.50
1995 1721.50 1556.50 1162.00 859.00 365.50 50.50 34.50 4.00 295.50 654.00 1345.00 1661.00 9709.00
1996 2079.00 1617.27 a 1517.45 a 898.00 414.50 98.00 34.50 13.00 259.00 649.00 1370.00 1738.58 a 10688.30
1997 1901.50 1416.50 1258.00 814.50 518.50 33.00 60.50 78.00 160.00 603.50 1212.32 b 1275.50 9331.82
1998 1618.00 1023.50 1182.50 572.00 165.00 145.00 5.00 8.00 130.50 552.50 964.00 1439.00 7805.00
1999 1891.60 e 856.00 h 851.00 f 0.00 z 272.50 109.50 15.50 14.50 j 279.50 665.00 836.50 1363.50 5433.60
2000 1744.50 1263.00 957.50 715.50 288.00 144.50 29.00 21.00 302.50 544.00 1055.50 1972.12 a 9037.12
2001 1553.00 1739.00 1272.00 727.00 277.00 98.00 19.50 16.00 259.50 648.00 723.50 1285.39 c 8617.89
2002 1516.50 1176.00 1458.50 827.50 506.00 55.50 15.50 20.50 202.00 853.50 1131.50 1380.00 9143.00
2003 1717.50 1514.00 1244.00 679.00 338.00 90.00 17.50 8.00 242.00 596.00 1187.50 1385.50 9019.00
2004 1868.94 e 1052.00 h 868.00 h 686.50 451.50 166.00 57.00 132.50 135.50 582.50 931.00 1556.00 6567.44
2005 1903.50 1295.00 1266.50 565.50 411.00 30.50 34.00 35.00 137.50 562.00 958.50 1463.00 8662.00
2006 1281.00 1541.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 697.00 1002.00 1291.50 5813.00
2007 1572.50 1613.50 1068.50 741.50 230.00 32.00 9.00 52.50 241.00 514.00 1030.50 1682.00 8787.00
2008 1803.00 1675.00 1317.50 793.50 430.50 112.50 12.50 17.00 204.50 590.00 1013.50 1867.50 9837.00
2009 2024.00 1411.00 1250.00 706.50 369.50 143.00 0.00 z 71.00 82.00 794.00 841.50 1632.00 9324.50
2010 1755.50 1418.50 900.50 457.00 322.50 79.00 0.00 21.00 311.00 481.50 1041.50 1644.50 8432.50
2011 1884.50 1442.00 1279.50 748.50 365.50 114.50 7.00 5.50 237.50 479.50 949.50 1328.00 8841.50
2012 1503.00 1275.50 816.33 a 627.00 256.00 43.50 2.00 21.50 244.00 655.00 1015.00 1514.50 7973.33
2013 1667.50 1455.00 1378.00 39.00 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 4500.50
Period of Record Statistics
MEAN 1789.91 1498.73 1242.42 722.12 357.09 108.51 27.68 58.59 259.93 603.20 1068.34 1580.42 9326.43
S.D. 201.44 193.91 172.69 122.77 103.94 52.34 22.96 37.96 69.52 118.82 139.03 180.27 630.73
SKEW 0.02 0.00 -0.16 -0.15 0.19 0.61 1.81 0.65 0.28 0.38 0.31 0.09 0.19
MAX 2348.50 2096.00 1699.50 1021.00 681.00 266.00 128.50 158.50 446.00 1079.00 1429.50 1977.28 10817.57
MIN 1281.00 1023.50 816.33 393.50 78.00 19.00 0.00 0.00 82.00 266.00 723.50 1229.50 7712.50
NO YRS 114 112 112 112 114 113 112 112 111 115 112 114 98