BOISE 7 N, IDAHO

Monthly Total Heating Degree Days

(101017)

Base Temperature = 65 F

File last updated on Apr 4, 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
1973 0.00 z 0.00 z 0.00 z 0.00 z 262.50 140.00 7.50 16.50 162.50 463.00 784.50 946.50 2783.00
1974 1182.00 845.00 799.00 573.00 418.50 68.00 29.00 28.00 83.00 496.00 759.50 1076.00 6357.00
1975 1175.50 916.00 870.50 769.50 404.00 158.00 15.00 54.00 110.50 471.00 866.50 997.50 6808.00
1976 1085.50 968.50 931.50 623.00 260.00 187.50 9.00 70.50 110.00 473.50 735.50 1081.50 6536.00
1977 1143.50 f 837.00 871.50 401.00 462.00 14.00 20.00 49.60 a 170.00 427.00 808.00 942.00 5002.10
1978 947.00 828.00 587.50 580.50 415.00 107.50 15.00 48.50 216.50 395.50 904.50 1257.50 6303.00
1979 1492.00 873.50 738.50 554.50 317.50 119.00 12.00 9.00 38.50 372.50 948.00 922.00 6397.00
1980 1142.00 785.00 844.00 439.00 359.50 173.00 6.00 51.00 149.50 452.00 800.00 1002.00 6203.00
1981 1039.00 856.00 712.00 512.00 389.50 140.50 19.00 3.50 141.00 512.00 698.50 952.50 5975.50
1982 1199.50 1001.50 794.50 653.50 381.50 118.00 45.50 2.50 185.00 516.50 951.50 1106.50 6956.00
1983 945.50 763.50 715.00 630.50 351.00 120.50 52.00 0.00 172.00 398.00 736.50 1273.50 6158.00
1984 1292.00 1053.50 754.50 605.00 367.50 201.50 0.00 7.50 223.00 566.50 793.00 1236.00 7100.00
1985 1360.50 1078.50 908.50 400.50 261.50 69.00 0.00 36.00 312.50 539.00 1088.50 1498.00 7552.50
1986 984.50 741.50 579.00 571.50 325.00 34.00 35.00 3.00 297.50 418.00 762.50 1144.50 5896.00
1987 1135.00 812.00 683.00 336.00 187.00 61.50 32.00 21.00 79.00 284.50 750.50 1032.50 5414.00
1988 1181.00 839.50 739.50 423.50 302.50 81.00 8.50 4.50 168.50 168.00 801.50 1198.50 5916.50
1989 1237.50 1159.00 727.50 409.50 327.50 53.00 0.50 37.00 99.00 471.00 757.50 1017.50 6296.50
1990 991.00 917.50 688.50 384.50 374.00 132.00 15.00 15.00 23.00 458.00 746.50 1430.00 6175.00
1991 1212.50 709.50 770.50 610.00 424.00 184.00 0.00 0.00 71.00 411.50 855.50 1044.00 6292.50
1992 997.00 692.50 554.00 388.00 125.50 80.00 24.00 39.00 133.00 365.00 968.00 1167.50 5533.50
1993 1285.50 1070.50 789.50 563.50 203.00 243.50 121.00 65.00 146.00 419.00 998.00 1005.00 6909.50
1994 1033.00 897.00 648.00 458.00 240.50 120.00 22.50 2.00 60.50 486.50 1041.00 1091.00 6100.00
1995 947.50 697.50 760.00 608.00 386.50 179.00 33.00 38.00 128.50 534.50 647.00 1039.50 5999.00
1996 1063.00 942.00 719.50 548.50 420.50 136.00 19.00 33.50 224.00 464.50 753.00 951.00 6274.50
1997 1073.50 848.50 686.50 594.00 221.00 135.00 52.00 1.00 105.50 486.00 725.00 1105.50 6033.50
1998 875.00 795.50 742.00 567.00 404.00 210.00 0.50 3.00 91.00 494.00 726.50 1133.50 6042.00
1999 967.50 866.50 741.00 633.50 436.50 183.50 40.50 26.50 153.50 368.38 a 560.00 1099.50 6076.88
2000 1013.00 738.50 761.50 421.50 314.00 106.00 14.50 12.50 200.50 460.00 1015.50 1130.00 6187.50
2001 1230.00 926.50 658.50 586.50 273.83 a 149.00 16.00 0.00 46.50 399.00 677.00 1125.50 6088.33
2002 1088.00 927.50 831.50 524.00 326.02 a 121.50 0.50 26.00 133.50 537.50 760.00 891.00 6167.02
2003 834.50 837.50 646.00 581.50 355.00 99.50 0.00 0.00 106.00 291.50 883.50 912.00 5547.00
2004 1204.50 954.50 587.00 453.50 338.50 108.00 7.50 37.00 160.00 409.00 847.50 962.50 6069.50
2005 1063.00 837.00 663.50 537.50 318.50 205.00 7.00 14.00 150.00 407.50 862.50 1149.00 6214.50
2006 947.00 900.00 804.00 498.00 287.00 69.00 1.00 18.00 153.50 494.50 717.50 1082.00 5971.50
2007 1159.00 777.50 597.00 525.00 253.00 90.50 0.00 7.00 173.50 501.00 776.50 1095.50 5955.50
2008 1225.50 925.50 843.50 669.00 319.50 174.00 0.00 28.00 114.50 466.50 706.50 1102.00 6574.50
2009 1123.00 866.50 861.00 542.00 300.00 118.50 7.50 34.50 62.50 607.00 805.00 1263.00 6590.50
2010 944.00 802.00 723.00 609.50 506.50 168.50 46.50 54.50 85.00 375.50 890.50 1031.50 6237.00
2011 1132.00 929.50 793.60 a 697.00 456.50 232.50 11.50 0.50 54.50 456.50 865.18 b 1118.07 a 6747.35
2012 992.50 891.50 674.00 467.50 370.97 a 153.00 0.50 3.00 42.50 476.00 703.00 1012.50 5786.97
2013 1405.50 902.50 722.00 13.50 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 3030.00
Period of Record Statistics
MEAN 1107.83 875.29 738.04 537.18 336.17 131.10 18.65 22.50 133.41 444.82 811.93 1090.64 6248.49
S.D. 146.87 104.81 92.65 98.15 81.58 53.92 22.77 20.49 65.90 80.96 113.66 130.93 433.24
SKEW 0.47 0.52 0.00 -0.08 -0.32 0.01 2.49 0.61 0.66 -1.04 0.50 1.07 0.77
MAX 1492.00 1159.00 931.50 769.50 506.50 243.50 121.00 70.50 312.50 607.00 1088.50 1498.00 7552.50
MIN 834.50 692.50 554.00 336.00 125.50 14.00 0.00 0.00 23.00 168.00 560.00 891.00 5414.00
NO YRS 39 40 40 39 40 40 40 40 40 40 40 40 38