BROADUS, MONTANA

Monthly Total Heating Degree Days

(241127)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1920 0.00 z 341.50 v 0.00 z 820.50 333.00 112.00 20.50 0.00 z 0.00 z 514.60 a 1059.00 1292.50 4152.10
1921 1144.00 970.50 892.00 611.00 317.75 a 37.00 19.50 8.50 234.50 530.62 a 1012.50 1290.00 7067.87
1922 1605.00 1610.50 1083.97 a 627.50 309.50 16.50 34.00 2.50 96.50 522.98 d 915.50 1436.50 8260.95
1923 1135.50 1263.00 1012.50 634.50 260.40 a 31.00 0.00 20.50 112.76 a 595.50 730.50 1204.72 b 7000.88
1924 1555.00 1023.00 1125.00 591.00 405.00 153.00 43.50 61.50 232.50 441.50 0.00 z 1554.00 7185.00
1925 1353.50 966.50 0.00 z 384.50 244.38 a 35.50 11.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2995.38
1926 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
1927 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
1928 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 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
1936 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 847.00 h 0.00
1937 1911.09 d 1280.00 962.11 c 585.50 201.50 130.00 0.53 b 4.00 g 143.04 b 486.81 d 980.00 1069.50 f 6680.58
1938 1239.00 1240.00 831.00 559.14 a 365.00 74.50 4.50 22.50 77.00 413.50 1060.50 1192.50 7079.14
1939 1117.50 1401.62 b 952.00 555.00 179.00 151.00 4.00 64.30 d 173.00 529.50 782.50 974.00 6883.41
1940 1566.00 1111.50 865.50 677.00 268.50 60.50 f 2.00 22.00 89.00 387.50 a 1168.45 a 1194.00 7351.45
1941 1254.50 1003.00 997.50 593.79 a 199.50 124.44 c 8.02 b 32.50 306.50 614.46 c 804.50 1176.50 7115.22
1942 1053.50 f 1196.50 970.50 506.00 442.78 a 157.00 14.31 e 23.50 280.50 532.00 973.50 1187.50 6284.09
1943 1670.50 1001.00 1227.50 447.00 420.00 165.50 14.50 5.00 237.50 483.50 887.00 1146.00 7705.00
1944 1179.03 a 1336.59 a 1256.50 613.50 257.00 213.00 35.00 43.50 208.97 a 456.50 1002.50 1323.50 7925.59
1945 1279.50 1140.00 904.50 737.00 421.50 254.00 22.50 25.50 336.50 519.00 1037.50 1414.00 8091.50
1946 1215.50 1028.50 792.50 455.50 470.00 137.50 9.50 68.50 254.50 729.50 1009.00 1234.50 7405.00
1947 1304.50 1256.00 1160.50 673.50 359.00 196.61 b 3.00 9.00 222.41 a 393.00 1126.00 1162.00 7865.52
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 24.80 a 12.00 115.00 538.50 994.00 1448.50 3132.80
1949 1876.00 1438.50 1062.00 457.00 250.50 97.76 a 7.50 19.50 246.50 650.00 671.00 1453.00 8229.26
1950 1981.00 1051.00 1198.00 757.50 483.50 164.00 63.00 56.00 299.50 452.50 1080.00 1156.50 8742.50
1951 1464.00 1081.50 1318.00 762.00 299.00 241.00 49.00 35.50 356.00 659.00 1037.00 1590.00 8892.00
1952 1576.50 1137.50 1193.00 471.00 294.00 41.50 31.00 30.00 138.50 575.00 1016.50 1168.00 7672.50
1953 1082.00 963.93 a 880.92 a 794.00 480.50 107.59 a 2.50 12.00 204.00 416.50 806.00 1115.50 6865.43
1954 1567.00 739.00 1193.50 672.50 403.50 169.50 3.00 8.00 198.50 615.50 750.50 1102.00 7422.50
1955 1311.00 1313.00 1209.52 a 594.50 334.50 157.00 12.50 9.00 266.50 479.50 1311.21 a 1459.00 8457.22
1956 1520.50 1305.50 954.50 758.50 305.50 19.00 6.00 55.50 198.00 496.50 981.00 1129.00 7729.50
1957 1758.00 1145.50 956.00 701.00 299.00 129.00 3.00 12.00 258.00 618.00 934.00 995.00 7808.50
1958 1114.00 1206.50 1027.00 630.50 164.00 177.00 54.50 16.50 199.50 505.00 928.50 1323.00 7346.00
1959 1504.50 1390.50 893.50 692.00 435.50 67.50 21.00 8.00 300.50 692.50 1199.00 1074.00 8278.50
1960 1374.00 1353.00 1084.50 590.50 304.00 82.50 10.00 47.00 235.50 566.00 993.50 1257.50 7898.00
1961 1235.00 905.50 817.50 703.50 307.00 14.00 5.00 12.00 405.50 607.00 1037.00 1422.50 7471.50
1962 1462.00 1154.00 1139.00 504.00 288.00 71.00 11.00 59.00 245.00 468.00 838.50 1163.00 7402.50
1963 1746.00 970.50 793.50 634.00 298.50 40.00 3.00 6.50 56.50 321.00 843.00 1366.50 7079.00
1964 1198.50 1062.50 1130.50 588.00 265.50 96.00 0.00 87.00 278.50 503.00 1168.50 1581.00 7959.00
1965 1304.50 1240.50 1390.00 602.50 398.00 108.00 12.00 48.50 562.00 496.00 c 945.00 1209.50 8316.50
1966 1665.50 1277.00 907.50 742.50 283.00 94.14 a 5.50 87.50 140.00 582.00 1076.00 1321.50 8182.14
1967 1282.50 1008.00 988.00 668.50 460.00 141.50 17.50 27.50 178.50 574.00 972.50 1433.00 7751.50
1968 1483.00 1069.00 808.50 709.00 452.00 157.00 31.00 64.00 229.00 603.00 962.00 1629.50 8197.00
1969 1854.00 1303.50 1187.50 491.00 330.50 220.50 8.50 0.00 137.50 825.00 868.00 1251.50 8477.50
1970 1608.00 1009.00 1119.50 791.00 301.00 82.00 6.00 9.50 310.50 763.00 1008.00 1435.50 8443.00
1971 1565.00 1210.50 1043.50 586.00 338.50 64.50 62.00 4.50 339.00 680.50 941.00 1495.50 8330.50
1972 1647.50 1224.00 869.00 641.50 328.50 51.50 81.00 42.50 307.50 715.00 1017.50 1536.00 8461.50
1973 1455.21 e 1053.50 862.00 728.00 376.50 110.00 25.50 1.00 258.50 532.00 1058.00 1237.50 7697.71
1974 1394.50 907.50 919.50 560.50 431.50 96.00 0.50 84.50 315.00 507.00 908.00 1212.50 7337.00
1975 1371.00 1385.50 1143.50 783.50 370.50 144.50 3.00 38.50 298.50 586.00 1029.50 1195.50 8349.50
1976 1352.50 957.00 1052.00 557.00 281.50 129.50 4.00 19.50 195.50 705.25 a 1052.50 1256.50 7562.75
1977 1682.00 924.00 918.52 d 509.00 222.00 30.50 10.50 69.50 250.50 525.00 1013.79 a 1444.00 7599.31
1978 1792.00 1442.50 1005.50 568.50 352.00 121.50 28.50 68.50 215.00 566.50 1207.50 1637.00 9005.00
1979 1947.50 1475.00 1025.00 690.00 408.50 79.14 a 9.00 25.50 127.50 497.50 1043.89 c 1101.50 8430.03
1980 1536.00 1153.00 1046.50 483.00 238.50 61.50 0.50 69.50 241.50 439.00 f 730.50 g 1203.50 6033.50
1981 1030.50 1079.00 801.50 469.00 299.00 119.00 13.50 10.50 181.50 667.50 872.00 1270.50 6813.50
1982 1688.00 1164.00 1002.50 692.50 408.00 155.50 21.50 23.50 276.50 625.00 1072.50 1287.50 8417.00
1983 1101.50 842.00 901.50 723.00 446.50 110.50 20.00 0.00 275.00 513.50 978.00 1963.00 7874.50
1984 1222.50 859.00 923.00 659.50 364.50 110.00 1.50 9.50 369.50 722.50 932.00 1603.00 7776.50
1985 1546.00 1297.00 1035.50 480.50 201.50 160.50 12.50 55.50 352.00 603.50 1491.50 1401.50 8637.50
1986 1124.50 1191.00 690.50 589.50 352.50 20.00 7.00 3.00 299.00 534.00 1068.00 1159.00 7038.00
1987 1138.00 889.50 902.50 395.00 175.00 47.50 27.00 60.50 219.50 598.00 825.50 1196.00 6474.00
1988 1431.00 1138.00 889.00 526.50 194.00 8.50 5.00 27.00 206.50 489.00 932.00 1152.00 6998.50
1989 1301.50 1473.00 1099.50 618.50 309.50 114.00 2.00 11.00 195.50 592.00 861.00 1441.50 8019.00
1990 1203.50 1059.00 897.00 603.50 340.50 96.50 10.50 0.00 128.50 588.00 842.00 1599.50 7368.50
1991 1530.50 802.00 848.50 618.50 288.50 23.00 2.00 6.50 225.50 681.00 1058.50 1092.00 7176.50
1992 1048.00 852.50 707.00 534.00 265.00 67.00 67.50 83.00 168.00 497.00 937.00 1465.50 6691.50
1993 1609.00 1381.00 824.50 548.00 200.50 122.50 67.00 50.50 265.50 581.50 1041.00 1092.50 7783.50
1994 1332.50 819.00 k 797.00 521.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1199.00 3849.50
1995 1206.50 930.50 990.50 312.00 q 411.50 126.50 10.50 7.00 245.50 581.00 889.00 1242.00 6640.50
1996 1578.00 1142.50 1209.50 570.00 436.00 48.50 8.00 11.00 215.00 602.50 1194.50 1500.50 8516.00
1997 1528.41 c 972.00 862.50 773.28 a 350.50 19.00 24.00 30.50 129.00 507.50 925.50 1121.50 7243.69
1998 1349.53 a 844.50 1097.50 526.50 236.00 198.50 0.00 1.00 95.00 519.50 837.50 1172.83 a 6878.37
1999 1229.50 805.50 762.08 a 594.83 a 356.50 95.00 7.75 a 1.00 292.50 471.00 642.50 988.00 6246.16
2000 1174.00 976.50 752.50 518.50 225.50 91.03 a 0.00 7.00 179.50 445.00 1247.00 1505.57 a 7122.10
2001 1088.50 1267.00 848.88 a 514.00 217.00 77.00 0.00 0.00 a 116.90 a 504.27 a 779.50 1207.00 6620.05
2002 1197.50 968.50 1218.00 635.00 384.50 56.50 0.00 19.50 171.00 730.00 817.50 1108.50 7306.50
2003 1145.00 1126.50 994.00 417.50 307.00 110.00 0.00 17.00 237.50 412.00 1096.50 1153.00 7016.00
2004 1359.50 1045.00 705.50 442.50 288.00 110.00 6.00 28.50 184.50 471.50 829.50 1035.00 6505.50
2005 1338.50 916.00 785.00 521.50 368.00 47.50 q 1.00 33.50 143.50 520.50 820.50 1311.00 6759.00
2006 899.00 1048.00 920.50 389.50 f 104.00 t 38.00 v 0.00 x 3.50 227.50 628.50 894.50 1110.50 5732.00
2007 1213.50 1147.00 630.50 599.00 245.00 39.50 0.00 10.00 178.50 465.50 889.00 1253.50 6671.00
2008 1401.72 a 1121.50 920.00 666.00 376.50 113.00 7.00 11.50 211.50 585.50 778.50 1495.00 7687.72
2009 1196.00 947.00 988.00 648.00 281.00 146.50 10.00 33.50 94.00 775.00 786.50 1540.50 7446.00
2010 1394.00 1227.50 752.50 569.00 409.00 102.00 9.50 14.50 181.00 367.00 1037.50 1296.50 7360.00
2011 1339.00 1227.00 977.57 b 596.00 401.00 78.10 a 0.00 3.88 c 98.50 444.00 933.00 1082.00 7180.05
2012 1127.50 1080.00 515.50 452.68 b 245.50 i 22.50 m 0.00 c 11.33 e 111.00 588.00 872.50 1372.50 6131.01
2013 1257.00 979.50 953.00 31.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 55.50 z 3189.50
Period of Record Statistics
MEAN 1394.63 1118.56 967.17 601.48 325.34 104.21 14.99 27.44 220.09 554.21 966.97 1295.05 7632.79
S.D. 238.76 183.85 164.92 102.44 81.40 56.35 18.19 24.67 85.80 99.80 144.51 185.14 647.84
SKEW 0.48 0.28 0.07 0.07 0.01 0.37 1.83 0.90 0.75 0.36 0.59 0.76 0.05
MAX 1981.00 1610.50 1390.00 820.50 483.50 254.00 81.00 87.50 562.00 825.00 1491.50 1963.00 9005.00
MIN 899.00 739.00 515.50 384.50 164.00 8.50 0.00 0.00 56.50 321.00 642.50 974.00 6246.16
NO YRS 80 80 80 79 78 76 80 78 79 79 78 80 69