BIG FALLS, MINNESOTA

Monthly Total Heating Degree Days

(210746)

Base Temperature = 65 F

File last updated on Apr 6, 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
1930 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 12.50 u 79.50 372.00 755.50 1077.50 1527.04 d 3811.54
1931 1588.00 1242.00 1299.00 727.76 a 451.64 b 116.38 a 67.00 127.88 c 235.50 501.50 939.00 1369.50 8665.15
1932 1644.50 1671.50 1670.26 b 781.03 a 393.50 57.41 a 124.00 d 93.53 b 378.00 649.50 f 1336.50 1847.00 9997.24
1933 1752.00 1768.50 1371.75 a 857.00 378.72 a 49.50 27.00 132.27 a 228.50 872.50 1322.07 a 1982.45 a 10742.25
1934 1675.50 1689.33 a 1484.50 837.00 304.50 132.50 83.50 204.50 365.77 d 573.00 972.00 1822.00 10144.10
1935 2050.00 1350.00 1314.00 880.86 a 477.00 222.41 a 5.00 7.00 p 319.00 f 750.00 1399.14 a 1665.50 10113.91
1936 2218.50 2150.00 1277.00 1038.00 299.00 156.50 21.00 90.50 307.24 a 895.79 b 1334.00 1613.55 a 11401.08
1937 2221.50 1656.50 1477.67 a 877.00 389.57 a 89.50 s 0.00 z 0.00 z 0.00 z 216.50 v 1164.00 1743.00 9529.23
1938 1899.50 1432.00 984.50 761.50 387.50 105.50 22.00 37.00 267.50 499.50 1248.00 1648.00 9292.50
1939 1748.00 1865.63 a 1424.50 839.00 286.00 127.00 23.50 42.50 310.00 744.00 934.50 1277.00 9621.63
1940 1893.58 a 1449.50 955.50 j 821.50 434.50 167.00 48.00 124.00 b 296.50 593.50 1294.14 a 1459.87 d 8582.09
1941 1753.00 1558.50 1297.00 499.00 242.50 138.00 30.00 131.00 283.50 645.46 c 1120.50 1549.50 9247.96
1942 1552.77 c 1469.00 1040.50 418.33 c 393.00 157.50 108.00 107.98 a 428.50 644.50 1231.50 1848.00 9399.58
1943 2099.50 863.50 k 0.00 z 753.50 434.00 113.50 5.50 42.76 b 348.50 567.82 a 1193.00 1561.50 7119.58
1944 1433.00 1595.50 1397.50 789.00 299.00 104.00 36.00 91.00 260.00 570.00 981.00 1579.50 9135.50
1945 1822.00 1485.50 987.00 836.50 590.50 240.00 88.50 77.00 383.00 692.50 1209.00 1784.50 10196.00
1946 1817.50 1656.50 967.20 a 647.50 427.50 153.00 50.00 134.00 331.00 679.00 1167.00 1737.50 9767.70
1947 1691.00 1655.00 1371.75 a 875.50 543.50 201.00 40.00 47.50 348.00 406.00 1291.00 1720.50 10190.75
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 37.64 c 53.50 206.50 578.50 1075.50 1694.50 3646.14
1949 1816.60 a 1718.89 a 1405.50 637.00 366.50 90.50 51.50 56.83 a 365.00 653.00 1048.00 1730.50 9939.82
1950 2190.84 b 1578.00 1500.50 1032.00 500.00 173.28 a 75.90 b 173.60 a 241.07 b 581.50 1277.07 a 1858.45 a 11182.21
1951 1548.50 f 1501.50 1423.33 b 840.00 268.00 179.00 81.93 c 140.02 a 388.97 a 698.00 1323.00 1820.14 c 8663.88
1952 1921.47 b 1328.82 a 1385.46 e 567.32 b 394.00 85.71 b 51.87 e 81.12 a 259.14 a 804.00 1097.68 b 1440.98 a 9417.57
1953 1737.60 b 1482.92 b 1204.57 c 842.00 443.41 c 118.39 b 51.00 32.50 340.00 394.39 d 923.28 a 1626.43 b 9196.50
1954 2062.00 1154.46 b 1381.29 e 852.00 553.50 114.31 a 39.00 106.50 344.00 686.50 973.50 1435.50 9702.56
1955 1848.24 b 1632.50 1602.18 a 515.50 280.00 93.00 15.50 32.00 340.86 a 610.00 1356.00 1899.27 a 10225.05
1956 1711.00 1686.00 1449.77 a 886.00 470.00 67.00 71.00 80.00 426.00 440.95 b 1063.50 1627.50 e 9978.71
1957 2134.00 1587.00 1355.50 509.50 i 386.95 c 179.46 b 7.75 a 75.50 h 366.00 630.69 b 1107.86 b 1533.00 9288.21
1958 1557.50 1557.50 1121.68 a 645.52 a 398.02 c 304.62 d 79.00 126.00 289.82 b 579.91 b 1126.50 2006.45 b 9792.52
1959 2077.55 c 1664.38 b 1228.63 a 785.89 b 263.00 h 88.93 b 42.00 57.00 335.36 b 802.38 a 1428.10 a 1346.50 9856.74
1960 1777.00 1565.00 1541.98 b 734.44 c 386.00 167.50 66.00 47.03 b 318.50 631.37 a 1060.86 a 1808.85 a 10104.54
1961 1911.00 1289.08 b 1045.00 884.50 435.03 a 80.36 b 26.35 a 41.69 b 356.11 c 605.02 a 925.50 f 1670.26 b 8344.39
1962 2021.50 1720.92 b 1202.91 c 848.08 d 376.43 c 65.00 g 83.46 e 65.74 b 279.50 g 473.00 f 728.00 g 1549.43 d 7868.47
1963 1524.50 h 1657.38 b 1140.91 c 679.66 a 460.98 d 91.50 f 14.43 b 65.50 188.08 d 298.50 935.50 1862.21 c 7303.15
1964 1625.90 b 1459.67 b 1418.25 c 707.31 d 276.00 167.31 d 18.50 g 177.96 d 360.00 649.89 c 1096.00 1864.98 c 9803.27
1965 2000.03 b 1357.00 f 1555.50 756.21 a 341.00 c 140.56 c 73.22 b 122.50 525.52 a 457.50 j 982.00 f 1020.00 h 5514.54
1966 1830.00 f 1642.48 c 1049.83 e 891.43 b 503.75 a 145.80 e 6.89 d 96.00 324.81 d 662.62 c 1282.50 1689.00 8295.11
1967 1836.23 a 890.50 n 743.50 j 822.32 b 573.50 a 140.56 c 47.00 g 133.50 233.00 702.09 d 871.50 g 1557.75 e 5998.95
1968 1872.83 b 1692.88 a 980.67 e 709.00 450.50 150.60 e 83.00 93.00 e 255.00 c 576.82 c 556.00 o 1722.88 e 8587.18
1969 1934.83 b 1439.41 a 1362.45 a 614.50 376.50 234.00 g 60.28 d 19.52 d 284.42 d 847.52 c 751.00 k 1471.47 a 8410.89
1970 1981.50 1566.00 1414.00 800.50 468.74 b 55.50 g 19.00 68.64 c 261.43 b 606.10 b 1168.39 b 1779.50 10133.81
1971 2155.61 c 1468.50 1309.50 703.45 a 414.00 62.88 d 106.12 e 92.00 287.00 558.00 d 1169.44 c 1674.00 a 10000.50
1972 2096.38 c 1402.50 f 1344.00 809.48 a 252.00 125.17 a 111.00 73.88 a 244.50 h 386.50 m 778.00 j 1502.00 f 4811.91
1973 1654.33 e 1393.00 b 705.00 f 776.38 a 397.46 c 123.10 a 65.00 31.53 b 371.11 c 349.00 h 1165.18 b 1722.29 e 7699.39
1974 1973.31 b 1496.50 1355.00 699.11 b 531.98 c 124.00 18.27 c 145.18 a 439.62 d 629.54 e 559.50 o 1408.50 8821.01
1975 1714.30 a 1476.22 a 1426.00 892.76 a 274.19 b 147.93 a 16.03 b 0.00 z 402.93 a 620.00 b 1105.71 b 1715.50 9791.58
1976 1907.05 c 1321.82 d 1369.88 b 581.00 351.33 a 70.86 a 31.00 c 47.07 d 205.50 k 825.38 c 701.00 m 2000.05 c 8505.45
1977 2131.54 d 1394.00 1015.54 d 566.90 a 125.03 a 85.00 24.69 d 206.87 e 239.00 h 434.00 k 860.50 j 1752.07 d 7301.63
1978 1581.00 f 893.50 n 1286.50 d 722.31 d 203.00 g 156.00 e 44.00 f 92.45 c 260.40 e 587.21 e 932.00 i 1845.05 c 4949.92
1979 2203.21 c 1688.17 d 1300.28 d 826.73 d 553.50 163.00 44.29 c 138.98 a 272.68 b 778.62 a 1204.80 e 1482.26 d 10656.51
1980 1899.86 c 1591.00 1418.77 a 603.00 235.60 a 134.00 32.07 b 86.00 388.50 785.73 e 1072.80 e 1743.20 c 9990.52
1981 1744.30 c 1345.56 a 1018.19 b 641.40 e 362.00 137.14 b 44.84 c 42.00 335.50 732.00 878.89 c 1630.71 b 8912.53
1982 2238.00 1558.50 1381.50 829.00 245.50 176.00 j 9.00 j 129.00 i 330.50 302.50 o 487.50 q 1025.50 j 6583.00
1983 1589.50 1288.00 1107.00 770.50 460.50 146.00 22.50 10.50 293.00 656.50 672.00 l 2060.50 8404.50
1984 1884.50 1155.34 a 1363.50 602.50 426.50 79.50 51.00 30.00 408.50 529.00 1144.00 1766.50 9440.84
1985 1905.50 1615.50 1093.00 617.50 250.50 249.00 32.00 p 172.00 391.50 674.00 1481.90 a 1995.37 a 10445.76
1986 1705.00 1525.00 1099.00 609.50 298.50 117.50 24.28 a 130.00 347.00 702.50 1294.50 1496.00 9348.78
1987 1617.00 1114.00 1053.00 474.00 274.50 91.00 31.50 126.50 225.00 765.00 996.00 1411.00 8178.50
1988 1939.57 a 1736.50 1245.50 700.00 195.50 42.00 19.00 60.00 275.50 769.50 729.50 k 1674.00 8657.07
1989 1696.50 1786.50 1417.50 807.00 324.50 152.00 12.50 79.50 299.00 638.00 1268.00 1965.00 10446.00
1990 1510.00 1447.50 1098.50 751.00 430.50 73.00 41.00 51.00 260.50 710.00 1072.00 1732.90 a 9177.90
1991 1329.50 k 836.50 k 1131.00 575.00 256.50 31.50 41.50 32.00 321.50 764.00 585.50 q 1021.50 l 3153.00
1992 708.00 p 936.00 i 813.00 k 561.00 j 273.50 125.50 j 139.50 140.00 303.50 445.50 m 233.00 x 917.00 n 856.50
1993 905.50 p 1010.00 i 659.00 m 758.00 229.50 k 189.00 58.00 42.50 m 333.50 i 478.50 l 206.50 y 633.50 s 1005.00
1994 1613.00 i 1660.50 732.00 k 748.00 308.00 74.00 41.50 11.50 s 170.00 i 268.00 n 281.00 v 808.50 m 2832.00
1995 835.00 p 826.50 m 563.00 o 891.00 383.50 52.24 a 14.00 p 19.50 n 261.50 j 363.50 l 343.50 w 1278.00 j 1326.74
1996 1607.50 i 1631.00 699.50 q 920.00 447.00 101.00 61.50 19.50 i 219.00 l 689.50 625.00 q 970.50 m 3850.00
1997 1371.00 i 922.00 j 827.50 l 798.00 515.00 41.50 33.00 k 112.50 155.50 k 372.00 o 389.50 u 701.50 o 1467.00
1998 878.50 n 724.00 i 863.50 i 581.00 158.00 j 99.50 l 29.50 l 5.00 t 193.00 392.50 k 365.00 u 829.00 n 774.00
1999 1160.50 m 819.00 j 845.50 h 627.00 e 89.50 u 112.00 m 32.50 p 85.50 g 287.00 h 486.50 k 459.50 o 798.50 n 627.00
2000 1239.00 k 842.00 j 601.00 m 508.00 g 219.00 i 111.00 j 26.00 q 34.50 i 189.50 p 342.00 k 629.50 m 1181.50 m 0.00
2001 1142.00 h 1081.00 j 806.00 j 493.00 g 215.50 k 51.00 n 28.50 h 34.00 h 188.00 k 251.50 v 344.00 s 655.50 q 0.00
2002 1000.50 l 829.50 j 975.00 k 522.00 j 543.50 101.50 11.00 j 56.00 230.00 930.50 367.50 u 1003.50 j 1861.50
2003 1067.50 m 987.00 l 757.00 n 534.50 f 338.02 e 124.50 37.50 j 21.46 e 195.00 h 431.50 j 512.50 s 819.00 o 483.98
2004 1360.50 k 811.50 l 789.50 k 705.60 e 537.00 175.50 h 68.00 g 138.50 i 116.50 k 390.50 j 404.50 q 1110.00 j 1242.60
2005 1073.50 n 686.50 m 808.50 l 554.50 300.00 l 58.00 k 21.50 o 61.50 g 138.50 m 404.00 l 631.00 l 791.50 n 554.50
2006 783.50 m 992.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 456.00 m 403.50 s 783.50 n 0.00
2007 1104.00 j 987.00 l 867.50 g 527.00 j 258.00 61.50 i 19.50 l 76.00 276.50 574.00 1152.12 d 1724.50 4061.12
2008 1798.00 1710.50 1367.50 843.00 538.00 170.50 55.00 62.00 300.50 630.00 1136.79 b 1960.00 10571.79
2009 2071.83 a 1474.50 1279.50 768.00 498.50 200.00 139.00 152.00 126.00 861.50 932.00 1754.00 10256.83
2010 1780.00 1509.00 918.50 539.50 339.00 141.50 10.00 55.50 394.50 523.50 1063.50 0.00 z 7274.50
2011 1934.00 1454.00 1280.50 716.50 375.00 142.50 16.00 26.50 284.50 519.00 1000.00 1382.00 9130.50
2012 1471.35 d 1335.50 785.50 685.71 b 297.08 a 68.00 0.00 59.00 351.50 751.50 1124.50 1620.50 8550.15
2013 1834.50 1525.00 268.50 y 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 3359.50
Period of Record Statistics
MEAN 1857.91 1537.44 1272.11 739.53 385.44 127.95 48.01 87.19 315.74 655.40 1147.53 1686.47 9764.86
S.D. 203.71 180.36 188.12 127.71 102.54 52.85 33.21 46.96 69.64 124.25 143.44 182.97 723.12
SKEW 0.05 0.14 -0.39 -0.23 -0.03 0.63 0.92 0.58 0.07 -0.21 0.20 -0.09 0.09
MAX 2238.00 2150.00 1670.26 1038.00 590.50 304.62 139.50 206.87 525.52 930.50 1481.90 2060.50 11401.08
MIN 1433.00 1114.00 785.50 418.33 125.03 31.50 0.00 10.50 126.00 298.50 878.89 1277.00 8178.50
NO YRS 61 62 61 73 72 66 64 67 65 62 53 63 34