LOLO HOT SPRINGS 2 NE, MONTANA

Monthly Total Heating Degree Days

(245146)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 198408
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
1959 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 688.72 a 1037.78 c 1276.50 3002.99
1960 1457.00 1211.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 281.87 d 258.00 g 527.50 h 991.00 889.00 i 3940.87
1961 1205.50 897.00 990.34 c 520.50 i 535.30 c 152.50 h 91.00 36.00 i 410.00 j 561.00 g 1136.50 1001.00 f 4855.64
1962 1445.12 a 1110.00 1086.00 701.50 574.50 359.00 245.00 249.00 404.00 676.50 940.50 1099.00 8890.12
1963 1088.00 h 885.50 991.50 756.00 549.50 353.00 205.50 163.00 251.00 586.00 930.54 b 1291.00 6962.54
1964 1250.00 1149.00 1179.50 858.00 622.14 b 346.20 e 141.16 c 262.97 b 537.12 d 715.07 a 532.50 n 1098.00 f 7061.15
1965 1206.50 1009.62 b 1254.97 b 0.00 z 0.00 z 236.00 j 141.57 a 139.50 e 0.00 z 0.00 z 920.89 b 1208.00 5881.04
1966 1219.50 1059.50 1058.50 745.18 b 441.00 342.00 94.50 139.50 f 216.50 710.00 939.83 a 1120.50 7947.01
1967 1132.00 990.00 1036.71 e 830.00 561.50 277.50 b 73.50 58.00 243.00 712.50 1016.00 1358.00 8288.71
1968 1356.50 1041.50 848.92 e 796.00 565.00 305.00 111.60 a 235.00 400.00 c 797.50 992.50 1410.00 8859.52
1969 1472.50 1210.00 1140.50 663.21 b 424.50 315.00 179.00 134.50 339.23 d 846.00 1002.00 1224.00 8950.45
1970 1306.00 964.00 1096.50 885.00 b 479.43 b 210.50 67.50 106.00 537.69 d 821.50 1016.67 c 1360.50 8851.29
1971 1253.00 1076.00 1090.00 736.00 429.50 316.55 a 136.83 b 48.00 550.00 818.00 1016.38 a 1360.00 8830.26
1972 1381.00 1119.00 904.00 830.00 479.50 203.00 137.50 51.00 477.00 745.00 1015.50 1417.50 8760.00
1973 1383.00 1028.50 935.00 774.50 477.50 267.00 86.00 93.50 395.50 709.00 1085.50 1128.00 8363.00
1974 1406.50 980.50 1018.50 688.00 608.50 182.00 111.00 149.83 a 384.00 672.00 981.50 1215.00 8397.33
1975 1266.00 1157.00 1049.19 b 901.50 604.00 402.00 42.50 229.92 a 407.00 761.10 b 1155.50 1164.50 9140.21
1976 1194.00 1108.00 1108.00 745.00 424.50 337.00 51.50 147.50 341.00 720.50 954.00 1215.50 8346.50
1977 1353.00 929.60 c 1046.00 610.34 a 550.00 192.50 0.00 z 106.50 n 330.00 h 610.00 f 707.00 k 754.50 m 4681.44
1978 796.50 j 550.50 m 0.00 z 461.50 j 603.39 c 0.00 z 90.50 j 0.00 z 0.00 z 261.00 t 0.00 z 398.00 y 603.39
1979 0.00 z 1174.83 d 0.00 z 746.54 d 364.00 h 252.12 d 98.50 f 81.50 h 232.50 j 0.00 z 619.00 o 454.00 t 2173.49
1980 1106.00 j 992.04 e 0.00 z 225.50 u 149.50 w 189.00 l 0.00 z 107.00 s 289.50 j 321.00 s 833.00 f 636.00 n 992.04
1981 750.50 l 604.50 l 114.00 z 157.50 x 250.00 q 153.00 p 0.00 z 0.00 z 210.50 o 0.00 z 158.50 y 498.50 s 0.00
1982 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
1983 0.00 z 0.00 z 0.00 z 0.00 z 265.50 k 261.50 170.00 83.91 b 456.50 690.00 960.50 1693.24 b 4315.66
1984 1239.50 974.00 909.00 729.00 0.00 z 300.50 124.50 113.00 0.00 z 0.00 z 0.00 z 0.00 z 4389.50
Period of Record Statistics
MEAN 1307.03 1050.79 1041.28 764.46 525.28 290.13 122.79 149.79 395.97 729.34 1005.17 1283.83 8697.94
S.D. 102.48 98.22 102.07 78.57 69.95 63.71 53.53 76.49 105.96 66.85 66.21 149.84 293.39
SKEW 0.13 0.06 0.03 0.03 -0.21 -0.24 0.56 0.36 -0.17 0.00 0.92 1.16 -0.23
MAX 1472.50 1211.00 1254.97 901.50 622.14 402.00 245.00 281.87 550.00 846.00 1155.50 1693.24 9140.21
MIN 1132.00 885.50 848.92 610.34 424.50 182.00 42.50 48.00 216.50 586.00 920.89 1099.00 8288.71
NO YRS 18 21 18 17 17 18 18 17 15 16 18 16 11