ISABELLA 1 W, MINNESOTA

Monthly Total Heating Degree Days

(214068)

Base Temperature = 65 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 200507
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 425.89 b 721.78 a 1198.00 1620.00 3965.68
1958 1611.00 1606.50 1224.50 b 771.50 476.88 a 359.00 122.50 147.54 d 341.79 b 686.00 1161.21 a 1953.00 10461.41
1959 2061.50 1619.50 1290.50 891.00 434.00 166.50 75.00 89.38 a 377.14 b 861.50 1484.00 1360.50 10710.53
1960 1764.50 1550.00 1548.50 866.50 449.50 242.07 a 110.00 80.82 c 366.21 a 709.00 1125.00 1769.50 10581.60
1961 1889.50 1317.56 a 434.50 s 935.69 a 494.00 164.50 65.88 c 54.00 381.00 672.50 1173.33 c 1661.50 8809.45
1962 1994.50 1652.50 1259.00 929.00 428.50 220.00 144.00 125.11 c 290.50 k 440.00 h 468.00 p 0.00 z 6752.61
1963 1356.50 k 1130.50 i 739.00 m 778.27 d 515.00 157.78 c 22.00 m 140.65 d 252.12 d 327.50 625.00 j 968.50 o 2171.31
1964 1084.50 i 907.50 k 1121.50 h 806.67 c 345.13 a 223.50 46.50 244.50 394.82 b 702.50 606.00 k 1774.75 c 4538.37
1965 1921.50 1727.83 d 1489.50 868.45 a 385.50 238.50 121.50 h 151.50 f 0.00 z 0.00 z 662.50 n 455.50 u 6631.28
1966 1469.00 i 1547.50 1176.00 972.41 a 639.78 b 178.45 a 28.50 183.86 b 325.00 709.56 d 1265.69 a 1680.31 d 8707.06
1967 1771.28 b 1149.50 j 1302.50 896.90 a 678.50 169.14 a 104.00 159.00 292.00 790.50 1222.24 a 1540.00 8926.05
1968 1793.35 a 1620.50 1073.63 a 784.50 514.00 215.50 101.78 a 135.76 b 327.50 628.02 b 1114.44 c 1654.76 b 9963.75
1969 1798.52 a 1392.22 a 1385.50 729.00 481.02 a 380.17 a 105.50 45.00 335.00 856.00 1219.00 1494.50 10221.43
1970 1933.00 1562.50 1437.50 922.00 625.50 166.50 39.00 91.50 346.03 a 682.00 1182.32 b 1636.28 a 10624.14
1971 2085.04 d 1463.28 c 1400.00 855.00 544.00 139.50 159.00 65.50 w 350.00 605.00 1211.67 c 1075.00 k 8812.48
1972 1491.50 j 1250.00 h 1427.66 c 887.40 e 323.78 d 7.00 z 128.28 b 150.00 429.50 791.00 740.50 l 1911.09 d 6048.71
1973 1620.50 1482.44 a 1024.15 d 840.00 540.00 188.00 71.50 81.50 0.00 z 0.00 z 0.00 z 0.00 z 5848.09
1974 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
1975 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 212.59 a 70.00 128.00 432.50 647.50 538.00 m 635.00 s 1490.59
1976 910.50 q 724.50 m 390.00 w 467.50 k 457.00 106.00 60.50 107.95 c 0.00 z 928.28 d 0.00 z 0.00 z 1659.72
1977 0.00 z 0.00 z 412.00 u 580.38 d 223.00 185.50 66.98 c 283.02 d 427.50 d 690.30 c 415.00 p 748.00 p 2456.69
1978 772.50 r 1054.00 j 525.00 s 0.00 z 363.45 b 190.00 c 129.50 129.50 317.78 c 626.00 484.00 q 0.00 z 1756.23
1979 0.00 z 0.00 z 0.00 z 151.00 x 0.00 z 242.50 48.50 156.07 b 301.07 b 546.00 j 575.50 o 528.00 s 748.14
1980 736.00 s 729.00 p 588.50 r 432.50 l 295.65 d 204.50 45.00 108.50 a 195.00 o 297.00 u 345.00 t 642.00 s 653.65
1981 619.00 t 767.50 n 429.00 u 329.00 q 245.50 n 113.50 h 84.00 40.54 e 0.00 z 373.00 p 0.00 z 818.00 p 124.54
1982 826.00 s 664.50 q 0.00 z 0.00 z 252.00 j 215.50 i 28.50 m 0.00 z 277.00 0.00 z 526.00 q 836.00 n 277.00
1983 925.50 n 796.00 l 808.50 l 352.00 q 385.00 j 212.88 d 26.50 28.50 352.24 a 440.00 l 477.50 q 1214.50 l 620.13
1984 1202.50 l 757.00 k 838.50 m 711.72 a 515.50 159.50 53.00 69.00 492.00 344.00 p 687.00 n 747.00 q 2000.72
1985 1124.00 m 744.00 o 568.00 o 401.50 n 417.50 354.00 119.00 222.68 a 445.50 519.50 j 740.00 n 933.00 q 1558.68
1986 983.50 n 533.00 r 782.00 l 507.00 i 426.52 b 233.50 111.50 229.50 444.00 455.00 l 470.50 t 754.00 o 1445.02
1987 840.50 n 558.00 o 477.50 q 634.00 395.00 120.00 83.50 170.00 149.50 n 384.50 p 397.50 s 663.50 q 1402.50
1988 1247.00 l 1232.50 i 800.50 l 510.50 k 331.50 112.50 60.50 90.50 256.50 i 276.50 v 712.50 m 1006.50 m 595.00
1989 826.00 p 1247.00 i 1020.00 j 630.50 j 436.58 a 274.50 60.00 81.50 m 385.56 c 331.50 q 492.00 r 956.50 q 1156.64
1990 420.00 v 505.00 r 404.50 u 287.00 q 739.50 0.00 z 207.50 220.00 414.64 b 534.50 m 493.00 p 571.00 u 1581.64
1991 566.00 v 617.00 p 0.00 z 0.00 z 0.00 z 223.00 217.50 175.67 a 544.50 433.50 p 524.00 s 0.00 z 1160.67
1992 1056.00 l 1016.00 j 0.00 z 864.00 g 358.00 289.50 237.50 204.00 370.00 483.50 m 685.50 m 1065.00 j 1459.00
1993 891.50 o 869.00 k 1220.00 586.50 k 510.50 299.00 143.50 138.00 535.00 522.50 l 809.50 k 536.00 s 2846.00
1994 250.50 z 412.50 u 1214.68 a 0.00 z 428.00 116.50 112.50 150.50 258.50 350.50 m 631.50 l 949.50 j 2280.68
1995 939.00 n 952.50 k 1259.63 a 639.00 k 489.50 86.50 67.00 44.50 380.00 438.50 l 980.00 j 758.50 r 2327.13
1996 781.00 s 907.00 m 906.50 l 969.50 574.00 154.50 125.50 57.00 288.50 516.50 k 708.00 o 661.50 s 2169.00
1997 518.00 w 546.00 q 489.50 t 389.50 q 637.00 82.00 98.50 176.50 271.50 758.47 a 651.00 o 941.50 i 2023.97
1998 640.50 s 522.00 n 1294.50 699.50 298.00 262.50 100.50 38.50 234.50 699.64 b 620.50 m 688.00 r 3627.64
1999 873.00 q 568.00 p 674.00 m 541.50 h 392.31 b 222.41 a 59.00 147.00 397.50 547.50 l 955.80 e 1108.00 h 2174.02
2000 1016.50 n 919.00 i 757.50 h 872.40 e 443.09 b 339.00 107.50 100.00 416.00 475.00 f 1141.15 d 1171.00 m 3419.14
2001 928.50 l 762.00 o 574.50 q 826.20 e 395.77 a 185.50 104.00 71.09 b 351.00 595.50 f 595.00 i 663.00 o 1933.55
2002 1040.50 k 908.50 i 907.00 l 922.50 649.00 175.00 29.00 106.50 277.00 983.50 1333.50 1015.00 j 4476.00
2003 1235.00 k 1048.00 k 986.00 i 609.50 i 469.50 219.00 75.00 63.00 321.50 775.00 1241.40 e 1173.00 f 3164.40
2004 2058.52 e 1495.50 1254.00 889.00 657.50 314.50 135.00 301.00 254.00 694.50 658.00 k 0.00 z 8053.52
2005 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 20.50 z 112.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 112.00
Period of Record Statistics
MEAN 1869.44 1541.37 1293.43 833.58 469.46 209.19 96.62 130.61 362.39 719.39 1201.92 1671.35 10427.14
S.D. 158.68 111.17 136.56 101.73 116.73 73.04 48.08 67.28 75.49 128.45 114.65 166.95 283.25
SKEW -0.20 -0.39 -0.04 -0.83 0.31 0.50 0.98 0.59 0.43 -0.66 0.43 0.00 -0.73
MAX 2085.04 1727.83 1548.50 972.41 739.50 380.17 237.50 301.00 544.50 983.50 1484.00 1953.00 10710.53
MIN 1611.00 1317.56 1024.15 580.38 223.00 82.00 26.50 28.50 234.50 327.50 955.80 1360.50 9963.75
NO YRS 13 13 18 25 40 42 44 42 39 23 15 12 6