POWELL, IDAHO

Monthly Total Heating Degree Days

(107320)

Base Temperature = 65 F

File last updated on Apr 4, 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
1962 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 91.00 i 263.65 d 632.50 903.10 a 744.00 j 1799.26
1963 1591.50 900.00 978.50 548.50 g 423.00 253.00 93.53 b 86.80 a 195.00 492.00 915.52 a 1249.09 b 7177.94
1964 1268.50 1156.00 1142.00 850.00 632.00 271.00 46.00 202.50 428.00 647.00 972.50 1311.00 8926.50
1965 1183.00 1023.00 1186.00 727.00 563.50 249.50 57.50 129.00 533.50 566.50 857.50 1252.00 8328.00
1966 1244.50 1027.00 1062.50 772.00 399.50 297.50 73.50 121.50 185.00 721.00 944.50 1124.50 7973.00
1967 1106.18 a 1043.00 1001.30 a 756.72 a 546.50 217.50 32.00 f 29.00 h 167.68 b 689.00 990.50 1306.00 7824.39
1968 1329.50 977.50 847.00 800.00 500.50 260.00 91.00 171.00 383.00 740.50 987.00 1360.50 8447.50
1969 1374.50 1073.50 1012.00 681.50 405.50 240.50 119.50 116.00 305.50 769.50 960.00 1189.50 8247.50
1970 1235.50 385.00 q 594.50 l 869.50 504.50 189.50 73.00 78.00 494.50 759.00 979.50 1307.50 6490.50
1971 1255.00 1078.50 1079.50 787.00 472.50 314.48 a 126.50 25.50 481.50 746.00 1034.50 1319.00 8719.98
1972 1375.00 1121.00 977.00 860.00 508.50 210.00 124.50 36.50 473.50 653.00 990.00 1435.00 8764.00
1973 1372.00 1033.50 925.50 752.00 488.50 272.00 77.50 96.50 365.50 674.80 c 1063.50 1127.50 8248.80
1974 1415.00 1007.50 1054.50 764.00 624.50 184.00 88.50 134.50 301.55 a 599.00 938.50 1232.00 8343.55
1975 1265.50 1142.00 1069.50 904.50 680.00 363.50 31.00 209.00 303.00 724.50 1113.00 1192.50 8998.00
1976 1234.50 1135.50 1127.50 765.50 459.00 363.50 90.00 156.00 280.00 658.50 925.50 1281.50 8477.00
1977 1353.15 a 948.50 1049.50 670.50 563.00 151.50 157.00 115.50 403.00 681.00 1130.00 1239.50 8462.15
1978 1159.50 952.50 880.50 668.00 584.00 260.00 104.00 168.50 353.00 636.00 1145.50 1470.00 8381.50
1979 1631.00 1056.00 928.00 768.00 474.00 246.00 100.50 49.00 237.00 606.00 1073.00 1143.50 8312.00
1980 1465.00 1016.00 1027.00 628.50 462.00 270.50 97.00 219.50 317.00 604.50 936.00 1125.50 8168.50
1981 1047.00 984.00 825.50 684.00 496.00 356.50 122.50 40.50 306.00 714.00 886.50 1197.63 a 7660.13
1982 1326.50 1196.00 945.50 866.50 580.00 205.50 119.00 75.50 361.00 690.00 1097.00 1241.00 8703.50
1983 1122.00 932.50 852.00 722.50 488.50 263.50 173.50 0.00 z 445.00 660.50 922.00 1538.00 8120.00
1984 1235.50 1005.00 878.50 703.00 553.50 299.50 86.00 73.50 438.50 753.50 1037.50 1347.47 a 8411.47
1985 1336.50 1202.00 998.00 649.50 401.00 231.00 6.00 185.00 485.50 793.00 1267.50 1401.00 8956.00
1986 1169.50 1008.00 796.00 696.50 462.00 100.50 200.50 43.00 422.00 585.00 1002.00 1268.00 7753.00
1987 1318.50 956.00 925.50 550.50 339.00 200.50 139.50 194.50 225.50 560.50 892.50 1271.50 7574.00
1988 1308.00 960.11 a 931.00 600.50 486.50 161.00 85.50 102.50 351.00 452.50 949.50 1266.50 7654.61
1989 1179.50 1263.00 997.50 677.00 514.00 216.00 37.00 150.50 316.00 646.50 910.00 1158.50 8065.50
1990 1101.00 1056.50 895.00 551.00 504.50 274.50 54.00 99.00 159.50 741.00 950.50 1578.00 7964.50
1991 1290.00 845.50 982.50 738.50 544.50 341.00 81.50 51.00 295.00 710.00 1043.50 1249.50 8172.50
1992 1233.00 898.00 741.00 639.00 395.77 a 180.50 170.50 181.00 465.50 570.00 1011.00 1323.50 7808.77
1993 1346.00 1119.50 855.50 709.00 317.50 327.00 271.00 200.50 370.50 614.50 1124.00 1183.50 8438.50
1994 1023.00 1060.00 846.00 582.00 384.00 274.00 76.00 66.50 262.00 0.00 z 0.00 z 657.50 n 4573.50
1995 1306.00 934.00 953.50 733.00 484.00 268.50 93.50 177.50 288.00 741.00 954.00 1235.00 8168.00
1996 1247.50 1166.00 964.00 686.50 569.00 245.50 71.00 152.00 413.00 716.50 987.50 1219.69 b 8438.19
1997 1245.00 1035.00 986.00 833.50 458.00 219.50 144.00 87.00 296.50 688.50 947.50 1269.50 8210.00
1998 1184.50 962.00 898.00 621.00 382.00 290.00 7.00 66.00 199.00 717.00 905.00 1285.50 7517.00
1999 706.50 k 657.50 j 589.50 l 433.00 m 270.00 r 367.22 c 127.44 d 60.93 b 422.31 d 684.98 e 904.04 d 1203.83 a 3770.76
2000 1200.00 1012.00 832.35 a 588.33 c 462.02 e 267.78 c 99.09 c 111.94 d 145.00 q 669.27 c 1136.00 1295.28 a 7674.07
2001 1285.39 c 1060.50 d 924.12 b 767.31 d 446.50 305.89 b 100.20 c 36.00 i 208.89 c 298.50 r 902.00 1269.97 a 7270.77
2002 1182.00 1146.00 1102.00 756.43 b 561.00 251.00 57.50 25.00 y 248.50 i 792.00 1028.00 1172.50 8048.43
2003 1119.00 1042.00 885.00 672.41 a 494.50 221.00 47.50 49.00 314.00 608.50 947.00 f 1235.50 6688.41
2004 1307.50 1094.50 829.00 633.00 576.00 296.50 92.50 126.00 425.50 834.50 1071.50 1222.00 8508.50
2005 1063.50 f 1063.00 851.00 683.00 446.50 321.50 93.50 114.50 406.00 643.50 1062.50 1389.50 7074.50
2006 1089.00 1204.50 982.00 684.50 463.50 154.00 23.00 0.00 z 333.00 609.50 f 988.50 1301.00 7223.00
2007 1426.50 959.50 877.50 538.00 f 437.50 204.00 4.50 115.98 b 400.20 e 734.00 1048.50 1302.00 7510.18
2008 1453.00 1010.50 1031.50 859.50 546.50 332.50 83.00 123.50 375.00 744.00 920.00 1319.05 a 8798.05
2009 1295.00 765.00 h 1034.00 756.50 478.50 247.50 75.50 92.50 208.00 847.00 993.50 1467.00 7495.00
2010 1151.50 981.50 882.00 703.50 599.50 285.50 115.50 115.00 318.00 629.00 1066.00 1248.78 a 8095.78
2011 1233.80 a 1160.50 965.50 845.69 a 563.50 341.50 114.00 52.00 224.48 a 632.00 1112.50 1281.33 a 8526.81
2012 1254.50 1093.20 a 943.00 648.00 532.50 292.50 45.00 77.50 335.00 739.50 950.17 a 1163.53 a 8074.40
2013 1334.50 968.69 b 973.50 41.50 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 3276.69
Period of Record Statistics
MEAN 1269.58 1043.14 953.70 720.56 495.08 259.14 93.20 113.33 337.57 677.34 998.58 1276.96 8286.03
S.D. 124.42 90.94 95.88 88.18 76.09 60.31 49.82 52.97 95.34 80.95 85.48 100.47 388.32
SKEW 0.57 0.28 0.22 0.13 -0.02 -0.23 0.89 0.31 -0.02 -0.37 0.76 0.97 -0.14
MAX 1631.00 1263.00 1186.00 904.50 680.00 367.22 271.00 219.50 533.50 847.00 1267.50 1578.00 8998.00
MIN 1023.00 845.50 741.00 550.50 317.50 100.50 4.50 25.50 159.50 452.50 857.50 1124.50 7517.00
NO YRS 49 48 49 47 49 50 49 45 49 48 49 49 36