DRIGGS, IDAHO

Monthly Total Heating Degree Days

(102676)

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
1930 1762.72 b 0.00 z 0.00 z 0.00 z 0.00 z 179.00 o 79.10 b 114.18 a 386.25 b 794.12 a 1195.50 1607.00 5938.88
1931 1413.00 1199.00 1201.50 793.50 578.50 123.50 90.00 110.00 384.50 692.50 1183.00 1435.50 9204.50
1932 1657.98 a 1315.00 1277.50 824.00 529.50 337.00 122.00 185.00 400.34 a 817.88 a 930.50 1656.36 b 10053.07
1933 1336.50 1544.67 a 1170.50 913.00 705.50 156.00 46.50 178.00 374.00 565.50 974.50 1032.00 8996.67
1934 1268.00 893.50 815.00 551.00 347.00 336.50 53.00 71.50 504.50 595.50 890.00 1340.00 7665.50
1935 1338.00 1224.00 1194.50 888.50 663.50 315.00 97.00 119.00 285.50 747.00 1258.00 1400.00 9530.00
1936 1505.00 1312.50 1258.50 842.50 452.50 239.50 59.50 133.50 439.00 726.00 1089.00 1324.00 9381.50
1937 1895.00 1299.50 1181.50 983.00 502.00 396.00 70.50 129.50 312.50 647.50 993.00 1297.50 9707.50
1938 1407.00 1192.00 1196.50 923.00 743.00 454.00 26.00 u 184.40 b 235.00 633.00 1369.50 1316.50 9653.90
1939 1430.00 1487.50 1118.50 718.50 484.00 424.00 122.00 163.50 359.50 723.50 869.00 1098.00 8998.00
1940 1455.00 1077.50 1060.00 759.50 472.50 256.50 105.50 95.50 337.50 651.00 1219.50 1205.50 8695.50
1941 1387.00 1187.50 0.00 z 843.50 497.00 357.50 131.50 146.00 531.50 776.50 1153.50 1288.00 8299.50
1942 1602.50 1467.50 1421.00 789.00 715.50 444.50 101.00 178.77 a 421.00 736.50 0.00 z 0.00 z 7877.27
1943 0.00 z 0.00 z 0.00 z 0.00 z 36.00 y 265.50 l 46.50 94.00 250.50 611.00 1014.31 a 1330.00 3346.31
1944 1555.00 1247.00 1253.00 823.00 507.00 385.00 124.00 129.00 343.00 552.00 1134.50 1390.50 9443.00
1945 1363.50 1154.50 1114.00 920.50 520.00 460.50 112.00 136.50 460.00 575.00 1002.00 1377.00 9195.50
1946 1448.70 c 1175.00 988.50 586.50 586.00 259.00 52.50 85.50 376.00 835.50 1083.75 b 1191.50 8668.45
1947 1559.50 1132.00 1016.00 826.00 437.00 402.50 60.50 119.00 335.00 590.50 1219.50 1348.00 9045.50
1948 1489.50 1244.50 1304.50 773.50 498.00 238.00 93.50 105.00 273.00 617.00 1211.50 1498.50 9346.50
1949 0.00 z 1280.50 1064.50 690.00 466.00 293.00 88.00 84.73 a 299.50 812.00 763.50 1307.00 7148.73
1950 1422.38 a 1096.15 a 1114.50 804.50 667.00 373.00 161.00 162.50 374.50 537.50 924.00 1198.00 8835.03
1951 1517.50 1154.00 1238.00 733.00 497.00 431.50 97.00 162.50 380.00 722.50 1112.50 1499.00 9544.50
1952 1515.50 1427.50 1289.00 739.00 453.00 232.50 120.00 51.50 248.79 a 564.31 d 1250.50 1277.50 9169.11
1953 0.00 z 454.00 r 1046.50 863.00 691.50 284.50 24.50 59.00 225.00 545.00 828.50 1399.50 5967.00
1954 1291.00 1048.00 1191.50 683.50 438.00 365.00 46.00 136.50 290.50 656.50 0.00 z 1460.00 7606.50
1955 1616.00 1407.00 1398.50 926.50 509.50 321.50 93.50 50.00 332.50 600.00 1138.50 1295.50 9689.00
1956 1249.50 1419.50 1236.38 a 734.50 431.00 192.50 53.00 130.00 256.00 644.50 1264.50 1396.00 9007.38
1957 1679.50 1076.00 1155.00 853.00 0.00 z 161.00 f 40.50 71.50 251.00 630.50 1326.50 1354.00 8437.50
1958 1510.00 1015.50 1174.00 891.00 325.00 209.00 131.00 67.00 346.00 422.50 g 1088.00 1164.00 7920.50
1959 1399.00 1226.81 a 1235.00 0.00 z 653.00 198.00 91.00 99.50 397.00 682.50 1053.00 1380.50 8415.31
1960 1520.00 1446.00 1149.58 a 722.00 532.50 228.00 39.50 130.00 229.14 a 670.50 1090.00 1456.00 9213.22
1961 1450.50 1059.00 1026.00 0.00 z 469.00 122.50 25.00 50.50 530.00 783.50 1180.50 1517.50 8214.00
1962 1705.00 1171.50 1247.00 690.50 542.00 236.00 86.00 152.50 308.00 560.00 971.50 1209.50 8879.50
1963 1673.50 906.00 1076.00 840.50 473.00 331.50 38.00 g 61.00 i 223.00 507.00 1028.89 c 1473.00 8532.39
1964 1607.50 1582.00 1407.00 834.50 532.00 352.00 13.50 181.00 446.00 603.50 1055.69 a 1401.00 10015.69
1965 1290.00 1218.50 1336.50 701.00 585.00 329.40 e 76.00 176.00 566.50 561.62 a 893.00 1274.50 9008.02
1966 1444.00 1303.50 1173.23 e 831.00 433.50 314.50 25.50 128.50 223.50 721.00 1014.50 1471.50 9084.23
1967 1291.50 1168.50 1098.50 844.50 594.00 330.50 42.50 39.50 271.50 652.50 1002.50 1572.00 8908.00
1968 1537.00 1181.00 998.50 874.00 595.50 295.50 55.50 234.50 377.00 689.00 1186.50 1380.02 a 9404.02
1969 1317.50 1213.00 1310.00 709.50 419.50 358.50 87.50 70.50 224.00 850.50 1020.00 1327.00 8907.50
1970 1353.00 1096.50 1180.00 967.00 534.00 250.50 79.00 37.50 465.50 853.50 987.41 a 1373.00 9176.91
1971 1403.00 1244.00 1212.50 750.50 488.00 258.50 83.00 35.50 487.50 765.50 1088.50 1493.00 9309.50
1972 1437.37 a 1209.50 915.00 815.50 515.93 c 231.50 117.50 93.00 447.00 677.00 1045.50 1588.00 9092.79
1973 1499.00 1221.00 1188.50 946.50 509.50 283.00 75.00 99.20 a 397.50 619.50 1041.50 1267.00 9147.20
1974 1431.50 1226.00 1081.00 729.00 535.00 176.00 34.50 163.50 339.50 636.00 962.00 1470.50 8784.50
1975 1499.50 1219.00 1112.00 1010.00 641.00 302.00 31.00 174.50 374.50 752.00 1143.50 1185.00 9444.00
1976 1427.00 1225.50 1308.50 811.00 446.00 292.00 39.50 170.00 309.00 761.50 983.50 1362.50 9136.00
1977 1565.50 1196.50 1186.00 648.00 580.00 122.00 73.50 143.50 300.00 617.00 1054.00 1252.50 8738.50
1978 1260.50 1160.00 938.00 722.00 575.50 271.50 88.50 181.50 380.00 615.00 1093.00 1644.50 8930.00
1979 1768.50 1130.00 1111.50 770.50 470.00 247.50 40.00 90.00 218.50 591.00 1241.00 1224.00 8902.50
1980 1465.00 1064.00 1099.00 678.50 503.75 a 265.50 62.00 155.00 291.00 0.00 z 0.00 z 0.00 z 5583.75
1981 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 760.00 751.00 g 1308.00 2068.00
1982 1564.50 1284.00 1033.00 980.50 620.00 296.00 122.50 42.50 371.00 789.50 1141.00 1395.50 9640.00
1983 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
1984 1535.50 1348.50 1127.22 b 907.76 a 531.13 a 358.00 69.75 c 61.00 430.86 a 874.50 1050.00 a 1515.79 b 9810.02
1985 1640.93 a 1417.50 1201.77 a 698.28 a 478.43 a 230.17 a 139.50 157.00 490.00 752.00 1201.11 c 1531.00 9937.69
1986 1267.00 1040.00 849.50 747.50 535.50 146.50 155.00 81.00 496.00 675.50 1057.50 1405.00 8456.00
1987 1482.00 1114.00 1035.50 583.50 398.72 b 224.00 129.50 179.00 281.00 610.50 1043.50 1351.50 8432.72
1988 1542.50 1227.32 a 1166.00 679.00 485.00 126.50 37.50 56.50 333.62 a 483.00 1067.00 1454.00 8657.94
1989 1544.50 1305.00 999.00 694.50 508.00 264.50 25.50 131.50 324.50 701.50 1024.00 1406.50 8929.00
1990 1317.50 1254.50 978.50 636.00 573.00 273.50 61.00 108.50 183.50 705.00 970.00 1701.00 8762.00
1991 1507.50 1003.00 1036.00 558.00 i 581.00 276.00 67.50 54.00 336.50 731.00 1175.00 1400.50 8168.00
1992 1421.50 1022.00 846.00 595.00 361.00 249.00 220.00 143.63 a 388.00 604.50 1252.00 1536.50 8639.13
1993 1488.00 1318.00 1128.50 858.00 490.50 405.00 328.50 249.00 425.00 727.50 1218.62 a 1443.50 10080.12
1994 1257.50 1236.00 981.50 703.50 402.50 248.50 85.00 61.50 254.00 772.00 1293.62 a 1297.00 8592.62
1995 1338.50 1001.00 1066.50 801.50 595.00 333.00 138.00 102.50 338.00 741.00 885.50 1190.00 8530.50
1996 1405.50 1218.50 1063.00 780.00 561.00 200.50 53.50 103.50 439.00 697.50 966.50 1294.00 8782.50
1997 1403.00 1288.00 1032.50 826.00 475.50 237.50 161.50 111.00 301.00 733.50 1043.50 1501.00 9114.00
1998 1234.50 1132.50 1160.00 805.00 530.00 434.00 28.00 71.50 226.00 0.00 z 962.50 1391.00 7975.00
1999 1333.00 e 1184.62 b 1088.58 e 871.11 c 670.67 e 185.50 j 56.00 j 84.39 d 466.80 e 478.00 h 800.19 d 489.50 t 6499.36
2000 1300.89 c 1041.93 a 907.50 f 652.24 a 469.65 a 174.50 h 46.50 f 56.12 b 231.50 i 402.00 l 1028.50 f 1493.00 5013.83
2001 1567.00 1198.17 d 1029.89 d 731.79 b 455.04 c 271.20 e 45.98 a 44.00 f 185.00 g 537.50 g 912.22 c 1521.00 7732.28
2002 1487.00 1369.50 1235.00 717.00 538.50 266.50 31.50 182.00 344.50 825.50 1150.00 1254.00 9401.00
2003 1152.00 1159.50 964.00 729.60 e 473.50 275.50 21.00 59.00 292.50 g 481.00 h 724.50 m 1238.50 6072.60
2004 1471.50 1064.00 f 918.00 676.73 d 543.00 292.00 103.50 190.00 369.50 698.50 1068.00 1261.00 7591.73
2005 1266.50 1251.50 1085.50 743.79 a 545.50 357.50 74.00 129.50 386.00 690.00 1052.50 1458.00 9040.29
2006 1294.50 1344.00 1183.00 709.00 478.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5008.50
Period of Record Statistics
MEAN 1456.16 1215.55 1127.84 781.43 522.84 287.67 82.64 117.69 352.15 681.51 1071.85 1377.17 9114.41
S.D. 142.49 139.15 129.92 102.66 85.15 83.14 50.77 49.96 88.38 91.32 128.19 132.79 459.53
SKEW 0.47 0.25 -0.08 0.09 0.39 0.06 1.92 0.26 0.27 0.06 -0.02 0.04 -0.08
MAX 1895.00 1582.00 1421.00 1010.00 743.00 460.50 328.50 249.00 566.50 874.50 1369.50 1701.00 10080.12
MIN 1152.00 893.50 815.00 551.00 325.00 122.00 13.50 35.50 183.50 483.00 763.50 1032.00 7665.50
NO YRS 72 71 71 70 72 69 70 72 71 68 69 72 53