FORT HALL INDIAN AGENCY, IDAHO

Monthly Total Heating Degree Days

(103297)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 8.27 a 183.21 b 534.75 c 964.00 1336.74 b 3026.97
1949 1876.61 c 1134.00 a 817.48 d 444.81 d 238.59 c 102.86 b 7.20 c 2.07 a 132.50 680.97 a 693.62 a 1186.00 7316.69
1950 1327.26 d 1003.33 d 886.17 b 621.92 d 424.18 a 149.44 c 26.98 d 22.45 b 236.67 c 386.90 e 819.60 e 1044.91 b 6949.83
1951 1272.07 b 920.37 a 1002.16 b 552.86 b 306.68 c 216.96 b 18.71 b 48.50 190.86 a 575.80 d 947.59 a 1314.40 a 7366.95
1952 1378.98 a 1227.50 1113.50 603.00 e 245.50 96.67 c 21.04 c 4.00 110.36 b 404.66 c 1110.58 d 1220.00 7535.78
1953 606.00 i 900.85 b 814.55 b 681.11 c 474.82 a 180.60 e 0.00 a 7.75 a 118.93 b 439.37 e 539.50 i 1193.50 e 4811.47
1954 1080.35 a 844.50 939.54 e 529.44 c 218.50 g 191.00 12.50 42.50 161.50 568.50 737.50 1374.50 6481.83
1955 1489.07 b 1224.00 1067.50 703.00 374.07 a 142.50 33.58 a 1.60 b 221.00 357.50 h 967.00 1014.00 7237.32
1956 1083.50 1294.00 895.00 537.93 a 251.62 a 86.67 c 11.07 c 60.93 b 147.86 b 552.00 1030.34 a 872.50 h 5950.92
1957 1520.55 a 952.00 c 807.55 a 634.82 b 320.33 a 120.00 a 5.34 b 12.92 a 163.39 b 538.22 b 1040.89 b 861.50 f 6116.03
1958 1309.23 a 813.68 c 904.00 655.96 d 129.50 f 81.21 a 20.27 e 12.63 d 206.54 d 489.59 b 895.20 e 961.53 b 6349.84
1959 1134.71 b 970.15 a 853.61 c 526.00 463.97 a 72.41 a 27.50 43.00 275.00 532.34 b 881.38 a 1230.38 b 7010.45
1960 1397.07 a 1243.50 851.50 559.80 e 385.29 c 48.00 1.50 74.92 a 140.36 b 395.50 f 837.78 c 1280.30 a 6820.00
1961 1273.77 c 827.50 813.00 602.00 298.12 a 26.25 b 0.00 e 0.00 a 330.00 c 574.00 939.64 b 1195.64 b 6879.92
1962 1499.37 a 1004.50 995.00 462.41 a 374.14 b 124.14 a 13.50 50.50 g 100.50 h 338.50 f 648.50 f 850.00 f 4473.06
1963 1451.12 b 721.30 e 670.50 f 664.20 e 219.50 f 103.00 i 4.00 o 6.09 c 71.00 347.09 c 834.44 c 1367.32 c 5462.57
1964 1386.70 c 1398.69 c 1164.22 d 651.92 d 322.00 g 177.60 e 0.00 d 65.44 d 187.00 g 354.00 g 888.10 a 867.00 f 5732.68
1965 1104.24 b 897.17 d 982.70 a 549.23 d 268.50 l 76.50 m 7.50 j 72.33 d 358.45 a 439.00 714.31 a 1185.50 6302.93
1966 1205.90 a 1089.50 860.50 606.00 247.45 c 136.00 5.00 23.54 d 117.50 613.36 c 808.00 1273.67 b 6986.41
1967 1098.36 b 866.92 b 821.50 692.00 359.50 167.78 c 0.00 3.88 c 141.21 a 493.13 d 847.00 834.50 m 5491.27
1968 858.00 j 917.00 751.23 a 651.11 c 374.30 d 127.20 e 13.29 c 131.20 c 217.76 a 419.00 g 729.00 g 1222.29 c 4405.37
1969 1092.23 a 998.50 1018.87 a 501.11 c 206.84 b 147.86 b 8.55 b 6.09 c 103.97 a 657.72 a 891.67 c 1094.54 e 6727.94
1970 1086.79 e 803.83 d 686.00 h 763.80 e 226.50 o 88.50 l 5.00 4.28 b 323.00 667.50 813.00 1203.00 5670.20
1971 1140.00 998.50 961.50 460.50 h 328.00 143.00 18.00 10.00 321.50 621.00 919.00 1272.00 6732.50
1972 1261.00 1000.50 698.00 634.00 297.00 70.00 24.50 17.50 296.50 534.50 848.00 1394.50 7076.00
1973 1367.00 1059.50 915.50 646.50 291.00 134.50 10.33 a 15.50 c 238.00 512.50 848.50 1082.50 7121.33
1974 1343.85 a 993.50 815.00 609.64 b 358.05 a 86.50 12.00 53.98 b 210.50 502.64 c 852.86 b 1283.00 7121.53
1975 1366.50 1059.50 929.50 789.11 b 447.95 a 153.50 13.00 62.00 a 105.50 416.00 705.00 h 1063.50 6406.06
1976 1238.50 1081.50 1027.50 629.00 174.00 108.50 4.50 41.00 161.00 645.46 c 876.67 c 1193.00 7180.63
1977 1523.50 1088.50 906.00 451.50 434.00 22.50 15.00 47.50 242.50 486.00 876.00 1064.50 7157.50
1978 1141.50 922.50 714.50 584.50 475.50 140.50 20.00 83.00 290.00 531.50 1036.00 1402.00 7341.50
1979 1679.50 1034.00 880.00 592.50 325.00 132.32 b 2.00 21.50 128.00 491.00 1096.00 1112.50 7494.32
1980 1271.00 d 903.00 885.00 499.00 375.00 169.50 7.00 60.00 183.10 a 571.50 883.00 1055.50 6862.60
1981 1107.50 1008.00 781.50 530.00 380.00 127.50 18.00 8.50 168.50 635.00 801.50 1106.18 a 6672.18
1982 1388.28 a 1173.50 850.95 a 701.50 438.50 155.00 40.50 0.00 232.00 644.00 1008.50 1267.26 b 7899.99
1983 1062.50 903.50 791.00 699.50 425.00 151.50 54.00 7.50 192.00 514.00 885.00 1440.98 a 7126.48
1984 1460.21 b 1337.00 1005.00 693.00 360.50 228.00 8.50 10.00 257.50 719.50 920.50 1469.50 8469.21
1985 1599.50 1386.50 1245.50 506.00 282.50 100.50 0.00 59.00 343.50 628.00 1177.00 1640.00 8968.00
1986 1327.50 836.00 643.00 599.00 379.23 a 41.00 33.50 13.43 a 357.50 541.39 c 923.50 1277.00 6972.06
1987 1432.50 907.00 813.50 420.52 a 253.50 91.00 44.00 45.00 173.00 511.00 870.00 1259.12 a 6820.13
1988 1363.50 971.50 873.50 434.50 329.50 52.50 2.50 8.27 a 268.50 323.00 928.00 1402.50 6957.77
1989 1497.50 1273.50 818.50 489.00 353.00 101.50 0.00 62.00 176.38 a 581.00 864.50 1223.50 7440.38
1990 1081.00 1011.00 752.00 437.00 411.00 139.50 9.00 30.00 72.00 539.00 829.00 1533.98 a 6844.48
1991 1411.00 850.00 809.00 620.50 428.50 116.50 4.00 1.50 194.00 555.00 982.00 1240.00 7212.00
1992 1257.50 801.50 635.00 428.50 172.50 96.50 51.50 67.50 217.00 451.50 1088.50 1368.50 6636.00
1993 1467.69 b 1248.50 900.50 630.50 255.50 231.00 139.00 101.00 298.00 599.50 1190.50 1335.00 8396.69
1994 1089.00 1101.50 790.00 563.50 273.50 146.00 54.50 16.50 170.00 630.50 1124.50 1287.02 a 7246.52
1995 1163.00 869.50 859.50 655.00 464.50 259.00 56.00 64.00 241.50 654.00 775.00 1128.50 7189.50
1996 926.00 g 1109.77 a 861.50 612.50 437.00 133.00 18.50 m 65.50 322.00 605.50 878.00 1128.50 6153.27
1997 1223.00 1001.50 851.00 715.50 335.00 150.50 82.15 a 30.00 180.54 b 291.00 n 917.50 1365.00 6851.69
1998 1044.50 942.00 0.00 z 0.00 z 0.00 z 306.50 5.00 15.00 157.00 602.43 a 843.00 1404.62 b 5320.05
1999 1153.00 1023.00 803.70 d 741.96 b 513.00 232.24 a 67.00 19.24 b 254.50 g 260.50 n 769.14 a 1247.23 a 6569.52
2000 1189.76 b 890.50 874.00 516.96 b 350.62 b 153.00 8.00 j 12.00 180.58 d 434.50 f 1008.00 f 1301.50 5468.92
2001 1534.00 1241.50 896.50 638.79 a 299.31 b 169.50 0.00 a 2.21 c 120.50 556.00 686.50 f 1373.50 6831.82
2002 1310.50 1378.00 1041.08 a 553.45 a 333.50 158.50 3.00 65.50 216.00 699.50 1013.00 1083.00 7855.03
2003 991.50 1018.50 760.00 616.50 395.00 166.50 4.00 18.00 241.00 428.50 1010.50 1081.50 6731.50
2004 1453.00 1174.50 741.50 409.00 g 390.50 152.00 13.00 102.30 a 284.00 522.00 976.00 1160.00 6968.80
2005 1325.50 1123.00 850.50 613.50 366.50 199.00 f 9.50 g 44.50 281.00 492.00 f 945.50 1346.50 6896.50
2006 1133.50 1140.50 962.60 b 575.36 b 370.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4182.46
Period of Record Statistics
MEAN 1299.39 1033.02 878.23 593.14 349.98 136.13 20.13 33.94 208.58 545.86 915.74 1247.01 7259.62
S.D. 182.76 163.64 119.18 89.42 79.82 56.58 25.55 30.81 74.80 90.41 111.90 139.55 533.50
SKEW 0.58 0.50 0.67 -0.13 -0.23 0.44 2.48 0.95 0.26 -0.36 0.50 0.28 1.59
MAX 1876.61 1398.69 1245.50 789.11 513.00 306.50 139.00 131.20 358.45 719.50 1190.50 1640.00 8968.00
MIN 991.50 721.30 635.00 420.52 172.50 22.50 0.00 0.00 71.00 323.00 693.62 961.53 6636.00
NO YRS 55 58 55 55 51 53 52 57 55 49 52 53 33