WINCHESTER, IDAHO

Monthly Total Heating Degree Days

(109846)

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
1965 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 135.50 180.00 506.00 466.00 831.00 1129.00 3247.50
1966 1190.00 1050.00 1040.50 723.50 461.50 404.00 173.50 154.00 239.50 644.50 874.50 1085.50 8041.00
1967 1090.50 904.00 1030.00 865.50 551.00 268.00 94.66 c 39.50 175.50 622.00 873.50 1241.50 7755.66
1968 1214.00 856.50 830.00 828.50 571.00 342.00 131.00 228.00 355.50 686.00 965.50 1310.50 8318.50
1969 1374.00 1133.00 1039.50 699.50 453.00 250.50 178.50 195.00 308.00 774.00 803.00 1072.60 a 8280.60
1970 1162.00 819.50 1012.00 901.50 517.50 233.00 99.50 111.50 507.00 695.50 935.50 1255.50 8250.00
1971 1132.00 967.00 1115.00 778.00 485.50 398.00 170.00 66.00 530.00 784.50 977.50 1264.50 8668.00
1972 1315.00 1039.50 886.00 874.50 475.00 306.00 175.50 101.50 471.50 669.50 927.00 1369.50 8610.50
1973 1253.50 949.50 930.50 770.00 494.50 320.50 102.50 134.50 321.50 662.50 1057.00 1050.00 8046.50
1974 1333.50 984.67 a 1008.00 738.50 633.00 221.00 148.00 143.00 285.00 561.50 881.00 1123.00 8060.17
1975 1247.50 1093.00 1069.50 916.00 588.50 379.50 86.50 238.00 326.00 709.00 1010.00 1071.00 8734.50
1976 1109.50 1043.50 1130.00 792.00 492.50 415.50 118.00 221.00 256.00 615.00 806.50 1039.00 8038.50
1977 1253.50 827.00 1101.00 605.00 661.50 208.00 168.00 129.00 445.00 673.00 1040.00 1159.50 8270.50
1978 1125.50 913.00 790.50 721.50 617.00 275.00 147.50 227.50 393.00 617.00 1083.50 1436.50 8347.50
1979 1574.00 1026.00 895.50 743.00 470.00 277.00 106.50 86.50 237.50 585.00 1066.00 1029.00 8096.00
1980 1381.00 958.50 1030.00 611.50 523.50 368.00 138.50 272.50 306.50 574.00 885.00 957.50 8006.50
1981 961.00 919.00 848.37 a 682.00 575.00 388.50 273.50 123.00 350.50 726.00 805.00 1092.00 7743.87
1982 1231.50 1107.00 978.00 831.00 583.50 275.50 231.00 157.00 409.50 712.50 1068.00 1219.00 8803.50
1983 981.00 840.00 797.00 738.50 513.00 358.45 a 214.00 60.50 461.50 616.00 857.00 1448.50 7885.45
1984 1172.00 923.50 855.00 770.00 592.50 395.56 c 162.00 0.00 z 421.50 777.00 930.50 1349.00 8348.56
1985 1366.50 1146.50 1045.22 a 578.33 c 0.00 z 276.50 38.50 225.00 529.50 694.00 1292.50 1337.50 8530.05
1986 957.50 941.00 715.00 722.00 468.00 181.50 241.50 39.50 469.50 569.00 983.00 1128.50 7416.00
1987 1205.50 880.50 852.00 508.00 439.50 232.00 183.50 219.00 291.50 568.50 853.50 1172.00 7405.50
1988 1223.00 881.50 922.00 602.50 515.00 305.50 186.00 183.50 369.50 424.50 943.50 1172.50 7729.00
1989 1173.00 1286.00 943.00 635.00 541.00 278.00 157.50 216.50 292.50 640.50 789.50 1021.00 7973.50
1990 1053.00 1041.00 892.00 612.00 583.00 346.50 101.00 133.00 140.00 689.50 856.00 1419.00 7866.00
1991 1229.50 738.50 987.00 747.00 622.00 439.50 157.50 76.00 254.50 596.00 953.00 1014.00 7814.50
1992 1034.50 768.00 730.50 612.50 424.50 206.00 181.50 166.00 363.00 547.50 982.50 1234.50 7251.00
1993 1319.50 1128.50 861.00 739.50 383.50 368.00 376.00 236.50 371.50 564.50 1063.00 1084.50 8496.00
1994 945.00 1028.00 852.50 638.50 482.00 379.00 141.50 139.00 260.50 665.00 1131.00 1125.00 7787.00
1995 1060.50 830.00 909.50 735.50 494.50 352.50 123.50 207.50 270.00 731.00 786.00 1108.50 7609.00
1996 1181.00 1067.00 913.50 673.50 648.50 314.00 98.00 117.50 401.50 656.00 899.00 1134.50 8104.00
1997 1131.00 984.50 914.00 779.00 404.50 335.00 168.50 67.50 247.00 656.00 812.50 1129.00 7628.50
1998 1063.50 876.00 901.50 705.00 503.50 322.00 35.00 78.50 196.00 642.00 877.50 1191.00 7391.50
1999 1055.50 963.00 983.50 794.50 639.50 371.00 171.00 80.50 343.50 591.00 701.50 1107.00 7801.50
2000 1145.00 935.00 926.50 598.50 531.50 295.50 154.00 148.00 379.50 648.50 1128.10 a 1200.50 8090.60
2001 1162.50 1042.50 888.00 769.50 445.50 377.50 138.47 a 75.50 192.00 623.50 798.00 1173.00 7685.97
2002 1129.50 989.00 1073.50 734.00 569.00 292.00 84.00 174.50 305.00 784.00 852.00 1052.00 8038.50
2003 956.50 1023.00 871.50 721.50 532.00 260.50 61.50 38.50 251.00 517.00 1047.00 1111.00 7391.00
2004 1152.00 985.00 782.00 635.50 554.00 286.50 83.00 131.50 371.50 636.50 0.00 z 1033.00 6650.50
2005 1066.50 942.50 830.00 695.50 462.00 350.50 76.00 96.00 382.50 587.00 943.50 1191.00 7623.00
2006 996.50 1038.00 984.00 688.00 451.00 257.50 28.50 100.00 272.00 658.50 883.50 1076.00 7433.50
2007 1280.50 911.50 768.50 669.00 465.50 286.50 15.50 117.00 324.00 628.00 921.50 1186.00 7573.50
2008 1250.00 956.50 1022.50 848.50 483.50 363.00 84.00 121.00 285.00 602.00 767.50 1288.00 8071.50
2009 1149.50 922.50 1077.50 749.50 466.50 256.50 66.00 97.50 175.50 756.00 900.00 1318.00 7935.00
2010 974.50 877.50 866.00 709.50 624.50 337.50 126.00 123.00 275.00 541.50 986.50 1094.50 7536.00
2011 1090.00 1070.50 929.50 852.00 610.00 344.00 161.50 65.00 155.17 a 599.00 931.50 1094.50 7902.67
2012 1064.50 1008.50 911.00 630.50 540.50 324.00 64.50 60.00 209.50 631.00 810.00 a 1126.00 7380.00
2013 1199.50 951.50 884.00 20.00 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 3035.00
Period of Record Statistics
MEAN 1160.76 970.16 929.65 722.86 524.86 315.37 136.62 136.19 326.75 637.88 927.02 1167.18 7929.35
S.D. 131.37 105.34 102.53 91.14 69.79 61.42 66.14 62.29 100.89 77.76 115.42 118.09 388.93
SKEW 0.55 0.31 0.04 0.05 0.18 -0.15 0.90 0.32 0.26 -0.20 0.70 0.73 0.38
MAX 1574.00 1286.00 1130.00 916.00 661.50 439.50 376.00 272.50 530.00 784.50 1292.50 1448.50 8803.50
MIN 945.00 738.50 715.00 508.00 383.50 181.50 15.50 38.50 140.00 424.50 701.50 957.50 7251.00
NO YRS 48 48 48 47 46 47 48 47 48 48 47 48 44