AGASSIZ REFUGE, MINNESOTA

Monthly Total Heating Degree Days

(210050)

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
1957 0.00 z 0.00 z 0.00 z 756.00 375.50 137.50 g 16.02 a 93.50 366.67 c 678.50 1191.00 1563.00 5040.18
1958 1645.58 a 1599.63 a 1180.50 702.00 384.40 a 274.80 e 84.50 109.00 348.89 c 639.00 1212.50 1946.50 10127.30
1959 2127.50 1830.50 1369.00 811.50 403.57 d 100.50 43.50 36.50 324.64 b 854.00 1472.00 1397.58 a 10770.80
1960 1862.50 1651.50 1655.92 a 832.00 378.00 158.50 57.50 45.50 285.50 662.00 1131.00 1839.00 10558.92
1961 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 32.50 361.00 670.00 1194.00 1846.00 4103.50
1962 2059.84 c 1757.50 1404.62 b 936.50 370.50 111.00 45.98 a 69.50 374.00 546.00 1058.79 a 1675.55 a 10409.79
1963 2152.50 1710.00 1284.50 731.38 a 477.83 b 86.50 20.00 h 58.00 223.00 344.50 1048.00 1936.50 10052.71
1964 1695.59 c 1593.00 1584.50 780.52 a 285.89 d 180.00 a 9.09 b 155.50 397.00 681.50 1145.00 1958.00 10465.58
1965 2120.50 1778.00 1702.00 811.00 406.00 123.00 53.50 114.50 556.50 631.00 1274.50 1494.00 11064.50
1966 2383.00 1783.00 1260.00 872.00 543.02 a 128.08 d 1.07 b 93.50 298.00 735.50 1376.38 a 1806.50 11280.04
1967 1923.00 1943.00 1429.10 a 906.50 563.50 140.50 68.00 122.50 280.50 789.00 1220.00 1671.50 11057.10
1968 2003.00 1839.50 1200.00 470.50 l 461.42 e 134.50 104.50 146.00 311.00 667.00 1113.50 1741.00 9721.42
1969 2134.50 1570.00 1590.96 c 648.00 350.00 239.50 i 71.50 18.50 273.50 832.00 1097.00 1540.50 10126.46
1970 2028.00 1641.50 1549.50 865.00 397.50 37.00 12.50 59.50 313.00 641.50 1180.00 1826.50 10551.50
1971 2178.50 1527.00 1351.00 710.00 387.00 38.00 80.50 62.00 292.50 586.50 1177.50 1693.00 10083.50
1972 2083.00 1810.00 1379.00 797.00 217.00 84.50 62.50 59.50 351.50 732.50 1194.50 1903.00 10674.00
1973 1695.50 1458.00 938.78 a 726.00 313.00 72.50 37.00 10.50 314.00 462.00 1225.00 1695.00 8947.28
1974 2005.00 1569.50 1443.50 749.00 451.50 86.00 6.00 100.00 373.50 593.50 1083.00 1411.50 9872.00
1975 1754.50 1589.00 1506.00 920.50 277.50 120.00 22.00 39.00 k 349.00 579.50 1062.00 1714.50 9894.50
1976 1934.00 1392.50 1455.50 608.00 327.50 79.00 18.00 51.00 313.00 827.00 1284.00 1958.50 10248.00
1977 2156.50 1436.00 1086.50 563.00 96.50 65.50 19.50 224.00 333.50 625.50 1273.50 1880.67 a 9760.67
1978 2124.50 1754.67 a 1451.26 d 763.50 222.50 125.36 b 39.50 91.00 243.50 625.00 1312.00 1924.00 10676.78
1979 2273.00 1870.50 1372.55 b 953.00 557.00 123.50 9.50 113.50 209.00 f 786.00 1251.50 1441.00 10751.05
1980 1916.50 1710.48 a 1477.50 542.50 219.58 a 94.50 17.00 96.00 299.00 753.00 1064.00 1758.50 9948.57
1981 1739.50 1329.50 1016.00 631.00 340.50 134.50 42.00 41.00 360.00 760.00 962.00 1736.00 a 9092.00
1982 2351.50 1669.50 1411.50 801.00 283.00 217.00 9.50 120.50 315.50 657.00 1291.00 1443.00 10570.00
1983 1608.50 1287.00 1134.00 759.50 454.50 119.50 12.40 a 9.50 325.50 0.00 z 1077.50 2059.00 8846.90
1984 1808.00 1192.50 1310.50 559.50 387.50 54.50 27.50 22.50 391.55 a 586.00 1156.50 1817.50 9314.05
1985 1909.50 1648.00 1102.00 595.00 214.50 205.00 28.50 121.00 379.00 683.50 1483.50 2023.50 10393.00
1986 1709.50 1592.00 1103.50 640.50 272.00 81.50 8.50 108.00 330.50 644.50 1385.00 1533.50 9409.00
1987 1671.00 1195.50 1164.50 455.50 222.50 74.00 22.00 89.50 219.00 772.00 1019.00 1448.00 8352.50
1988 1988.65 a 1740.00 a 1228.00 639.50 160.50 24.50 14.50 44.00 284.00 751.50 1159.50 1665.50 9700.15
1989 1753.00 1853.50 1473.00 809.50 267.50 111.00 3.00 53.00 263.50 635.00 1317.00 1973.50 10512.50
1990 1493.00 1444.50 1122.50 714.50 364.50 61.00 30.00 44.50 196.00 661.50 1102.00 1792.00 9026.00
1991 1972.50 1335.00 1157.50 563.50 243.00 30.50 17.50 16.00 313.00 806.50 1342.00 1563.50 9360.50
1992 1579.50 1343.50 1176.50 800.50 269.50 167.50 134.00 118.00 314.00 662.00 1193.00 1799.55 a 9557.55
1993 1862.07 a 1604.50 1244.00 720.50 319.50 173.00 55.00 53.00 363.00 747.50 1245.00 1586.00 9973.07
1994 2169.50 1715.50 1125.50 700.50 272.00 45.50 27.50 70.50 163.50 487.00 998.50 1403.50 9179.00
1995 1705.00 1568.50 1150.50 838.50 321.00 39.00 18.50 3.00 265.00 642.50 1397.00 1758.50 9707.00
1996 2134.00 1617.50 1526.00 924.00 351.00 62.00 12.50 7.50 288.00 646.50 1439.00 1943.50 10951.50
1997 2083.00 1584.00 1512.00 923.00 505.50 36.50 37.00 46.50 141.50 602.50 1232.00 1308.50 10012.00
1998 1693.00 1047.00 1257.00 582.50 203.00 176.50 14.00 0.50 129.50 533.50 1099.50 1585.00 8321.00
1999 1862.50 1228.50 1109.00 590.00 247.50 85.50 8.50 26.00 291.00 660.50 848.50 1368.00 8325.50
2000 1749.50 1228.50 904.00 677.00 257.50 129.50 26.50 0.00 z 252.00 528.50 1271.50 2151.50 9176.00
2001 1681.50 1659.50 1215.50 627.00 238.00 73.00 16.00 16.00 211.00 667.00 803.00 1390.00 8597.50
2002 1549.00 1209.50 1475.50 756.50 483.50 36.00 3.00 35.00 189.00 913.50 1237.50 1435.00 9323.00
2003 1801.00 1655.50 1293.00 614.50 282.00 100.00 30.50 35.50 279.50 562.50 1274.50 1450.00 9378.50
2004 2047.00 1454.00 1217.50 714.50 468.00 183.00 69.00 194.50 157.50 600.00 969.50 1585.50 9660.00
2005 1973.00 1409.00 1305.00 515.00 373.50 43.50 42.00 75.00 182.00 555.00 1049.50 1487.50 9010.00
2006 1322.50 1580.00 1168.00 467.50 303.00 73.00 7.50 31.50 0.00 z 731.50 1046.00 1370.50 8101.00
2007 1657.50 1711.00 1105.00 743.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 546.50 1089.00 1737.00 8589.50
2008 1825.00 0.00 z 1325.00 760.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3910.00
2009 2035.50 1492.00 1296.50 714.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 776.50 863.50 1770.50 8949.00
2010 1718.00 1490.00 931.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1091.00 0.00 z 5230.50
2011 2047.00 1565.00 1417.00 517.00 h 27.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 651.00 n 1403.00 6432.00
2012 1563.50 1385.00 594.50 o 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 55.00 z 1168.50 1666.50 5783.50
2013 1841.92 a 1578.50 1473.05 c 52.00 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 4893.47
Period of Record Statistics
MEAN 1893.85 1559.78 1298.56 722.03 338.18 104.25 33.25 69.67 295.56 662.01 1171.33 1682.90 9855.54
S.D. 228.96 201.33 186.97 124.94 106.05 55.64 28.52 49.91 78.34 107.15 148.67 213.50 796.97
SKEW -0.06 -0.45 -0.01 -0.10 0.24 0.80 1.45 0.93 0.20 -0.18 -0.15 0.09 -0.22
MAX 2383.00 1943.00 1702.00 953.00 563.50 274.80 134.00 224.00 556.50 913.50 1483.50 2151.50 11280.04
MIN 1322.50 1047.00 904.00 455.50 96.50 24.50 1.07 0.50 129.50 344.50 803.00 1308.50 8321.00
NO YRS 55 54 54 51 49 47 48 48 48 51 54 54 40