CARLYLE 12 NW, MONTANA

Monthly Total Heating Degree Days

(241518)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200602
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 190.00 n 398.19 b 93.89 c 39.27 a 57.19 b 253.45 a 467.77 c 823.45 a 1222.43 a 3355.63
1963 1800.50 1125.38 b 874.41 b 509.50 g 382.85 a 64.82 b 6.00 16.00 86.50 331.91 b 864.00 1485.93 a 7038.32
1964 1282.00 1144.00 1201.25 a 611.50 320.85 a 111.72 a 0.00 a 112.78 b 355.00 514.60 a 1186.11 c 1725.50 8565.31
1965 1540.00 1351.50 1559.50 730.00 427.05 b 131.67 c 20.15 a 48.00 542.68 b 402.00 1021.50 1133.10 b 8907.15
1966 1795.93 a 1405.60 c 895.26 b 820.34 a 326.05 c 121.03 a 1.60 b 99.00 147.50 541.95 c 1135.86 a 1359.98 d 8650.12
1967 1373.50 1212.50 1145.21 e 793.89 c 419.69 e 161.25 b 34.21 b 21.91 b 149.46 b 571.95 a 1012.22 c 1443.71 c 8339.51
1968 1491.50 1297.23 a 848.50 715.34 a 359.50 h 188.04 b 48.50 96.10 a 213.21 b 437.50 g 951.35 d 1641.50 7491.27
1969 1981.00 1345.83 e 1317.50 527.59 a 363.00 181.00 f 42.22 b 4.28 b 167.14 b 818.92 a 883.97 a 1415.84 b 8867.28
1970 1783.00 1250.08 d 1285.97 b 852.00 376.81 b 75.50 17.50 21.50 306.50 406.00 o 1161.96 b 1530.76 b 8661.58
1971 1762.50 1386.54 b 1181.10 a 684.64 b 420.71 c 86.25 b 68.41 b 16.02 a 324.00 682.50 983.28 a 1534.00 9129.95
1972 1807.00 1500.00 1087.77 c 723.75 b 378.50 109.29 b 102.00 42.88 a 148.50 m 711.40 b 1044.00 1587.50 9094.08
1973 1379.00 1123.00 871.50 742.50 388.00 128.00 26.50 5.50 297.50 490.00 1148.50 1352.50 7952.50
1974 1524.50 1026.00 1093.00 635.00 508.00 127.00 4.00 106.00 305.50 485.50 965.50 1233.50 8013.50
1975 1412.10 b 1428.50 1279.50 869.50 425.50 166.00 11.50 60.00 282.50 609.50 1043.00 1303.00 8890.60
1976 1486.50 1040.00 1093.00 585.50 305.00 129.00 12.00 13.50 157.50 701.50 1112.50 1338.50 7974.50
1977 1849.50 1030.50 968.50 493.00 190.00 52.00 13.95 a 105.50 295.50 572.50 1125.50 1599.50 8295.95
1978 1894.50 1539.00 1093.50 690.50 353.50 135.50 44.50 48.00 209.50 470.00 f 1223.00 1651.00 8882.50
1979 2004.50 1586.50 1151.28 b 829.14 a 488.50 108.50 13.50 44.50 112.00 483.00 1105.00 1109.80 a 9036.21
1980 1597.00 1230.00 1113.50 492.00 245.50 70.50 6.00 101.00 250.50 605.50 849.50 1361.00 7922.00
1981 1128.50 1128.00 878.00 514.00 376.50 176.00 17.00 5.00 165.00 619.48 a 868.20 e 1370.00 7245.68
1982 1979.50 1346.50 1177.00 786.00 452.50 187.00 25.00 48.50 279.00 597.50 1122.50 1286.00 9287.00
1983 1198.00 933.00 1049.50 769.50 493.00 155.00 9.50 3.00 304.50 524.50 957.00 1968.50 8365.00
1984 1315.00 937.50 1110.50 677.00 402.00 111.00 5.50 13.00 416.50 703.50 966.50 1695.50 8353.50
1985 1632.00 1360.00 1052.50 539.50 225.00 213.50 26.50 97.50 391.00 634.00 1508.50 1513.50 9193.50
1986 1191.00 1337.50 763.00 686.00 368.50 44.00 19.00 29.50 362.00 518.00 1137.50 1179.50 7635.50
1987 1251.00 938.50 1001.50 451.00 211.00 54.50 31.00 101.00 189.00 633.00 817.24 a 1196.00 6874.74
1988 1542.50 1302.50 945.00 571.50 214.00 12.50 8.50 35.50 223.50 569.00 964.00 1306.00 7694.50
1989 1383.50 1622.50 1161.00 662.50 333.00 133.00 5.50 22.00 200.00 561.00 951.50 1552.00 8587.50
1990 1224.50 1118.00 919.50 624.50 376.50 98.00 22.50 0.50 137.50 543.00 861.00 1546.00 7471.50
1991 1617.50 897.00 934.50 610.00 336.00 51.50 13.50 11.00 254.50 693.00 1105.00 1125.50 7649.00
1992 1067.00 916.00 812.00 636.00 286.00 120.00 125.50 121.50 224.00 579.50 1057.50 1488.50 7433.50
1993 1602.00 1403.50 934.50 654.50 313.50 220.50 137.50 101.50 352.50 627.00 1132.50 1181.50 8661.00
1994 1611.00 1478.00 888.50 645.50 251.00 102.50 28.50 0.00 z 122.00 548.50 1006.00 1201.50 7883.00
1995 1341.00 1038.50 1090.00 787.00 463.50 124.00 18.50 8.50 247.50 599.00 1004.50 1386.00 8108.00
1996 1719.00 1184.50 1369.50 694.50 503.00 81.00 24.50 6.50 264.00 627.00 1340.00 1621.00 9434.50
1997 1663.50 1059.00 996.00 807.50 402.50 18.00 41.50 42.00 115.50 555.50 961.50 1147.50 7810.00
1998 1450.00 900.00 1278.00 551.00 292.00 228.00 0.50 0.00 93.00 570.00 929.00 1315.50 7607.00
1999 1465.27 a 927.50 848.00 658.00 384.00 136.50 42.00 18.50 355.00 544.50 664.00 1070.00 7113.27
2000 1308.50 1060.50 828.50 640.50 283.50 158.50 3.50 9.30 a 0.00 z 523.50 1313.50 1683.50 7813.30
2001 1238.50 1466.00 994.50 624.00 294.00 160.50 7.50 6.50 190.00 614.50 729.00 1295.00 7620.00
2002 1314.00 1039.50 1474.00 763.00 491.50 113.00 3.00 38.50 207.00 875.50 864.50 1151.00 8334.50
2003 1386.50 1277.00 1163.50 521.50 365.00 173.00 9.00 19.50 271.50 433.50 1184.00 1182.50 7986.50
2004 1627.00 1236.50 861.00 563.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 224.00 u 902.50 1183.88 b 6373.88
2005 1589.50 1038.00 952.00 581.00 509.50 0.00 z 32.00 0.00 z 168.50 619.00 928.50 1454.00 7872.00
2006 1042.00 1235.50 0.00 z 528.50 323.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3129.50
Period of Record Statistics
MEAN 1514.83 1209.16 1059.12 659.14 364.38 120.28 27.18 42.89 243.63 582.59 1020.82 1389.29 8186.15
S.D. 252.73 202.55 183.46 108.19 85.27 52.00 30.56 38.78 97.70 102.00 162.84 204.90 661.10
SKEW 0.14 0.16 0.66 0.10 -0.12 0.02 2.22 0.73 0.64 0.40 0.49 0.52 0.09
MAX 2004.50 1622.50 1559.50 869.50 509.50 228.00 137.50 121.50 542.68 875.50 1508.50 1968.50 9434.50
MIN 1042.00 897.00 763.00 451.00 190.00 12.50 0.00 0.00 86.50 331.91 664.00 1070.00 6874.74
NO YRS 44 44 43 43 43 41 43 41 41 40 44 44 33