BROWNING, MONTANA

Monthly Total Heating Degree Days

(241202)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 198911
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
1894 0.00 z 0.00 z 0.00 z 0.00 z 186.00 m 263.00 95.00 122.50 493.50 771.00 841.00 1201.50 3787.50
1895 1707.50 1369.00 1018.50 0.00 z 250.50 q 350.00 174.50 265.50 556.50 699.00 1088.00 1394.50 8623.00
1896 1607.50 1057.50 1302.50 851.00 631.00 290.00 151.50 254.00 616.50 694.50 1812.50 1028.50 10297.00
1897 1296.50 1233.50 1461.50 645.50 269.50 332.50 192.50 111.00 373.00 794.50 1442.00 1303.00 9455.00
1898 1278.00 1104.00 1458.00 779.00 551.00 284.00 156.00 112.50 357.00 909.50 1179.00 1296.00 9464.00
1899 1494.00 1681.50 1524.00 865.00 673.50 319.50 90.00 213.50 338.00 903.50 772.00 1441.00 10315.50
1900 1156.82 a 1349.50 1008.50 632.00 439.00 199.00 202.00 280.00 495.50 832.00 1198.50 1015.00 8807.82
1901 1393.00 1329.00 996.50 844.00 401.00 502.50 170.00 38.00 642.50 569.00 913.50 1280.50 9079.50
1902 1348.00 1230.50 1209.50 827.00 510.00 444.64 b 250.07 a 227.85 a 298.50 j 669.50 1242.50 1550.50 9510.06
1903 1298.50 1317.50 1426.00 a 647.00 f 267.00 s 177.00 g 204.50 217.00 506.00 563.00 1218.50 0.00 z 6751.00
1904 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
1905 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
1906 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
1907 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 12.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1908 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
1909 0.00 z 0.00 z 1013.50 929.00 518.50 208.50 78.10 e 105.40 a 252.50 623.88 c 1030.00 1407.50 6166.87
1910 1215.50 1322.00 680.00 426.00 379.50 147.50 46.50 b 187.50 407.00 562.50 229.00 u 0.00 z 5374.00
1911 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
1912 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 562.50 784.50 963.00 1302.00 3612.00
1913 1739.10 a 1439.50 1524.00 728.28 a 580.00 230.00 169.50 176.00 140.50 l 453.67 e 450.00 j 958.42 a 7998.47
1914 1259.78 b 1287.00 1149.00 100.00 z 61.50 z 375.50 94.50 226.00 433.45 a 684.58 a 918.00 1585.13 a 8012.94
1915 1340.20 c 1066.00 720.00 i 0.00 z 16.50 z 410.00 c 298.00 19.50 p 0.00 z 112.50 q 1045.50 1256.00 5415.70
1916 2177.50 1394.07 a 521.50 q 507.50 613.00 245.50 f 129.50 214.42 a 451.07 b 879.00 1031.00 1639.50 9036.56
1917 879.00 l 1395.52 c 1354.50 927.00 602.00 347.00 88.50 173.00 352.50 b 733.50 602.50 1607.00 8183.02
1918 1470.00 1250.00 953.00 744.50 664.50 227.59 a 177.00 251.32 c 359.50 624.00 1115.17 a 1246.95 b 9083.53
1919 1173.87 a 1431.50 1362.45 a 734.00 537.00 292.50 162.50 135.00 471.96 b 1054.50 1341.50 1465.00 10161.78
1920 1489.00 1240.00 1294.00 1055.50 682.50 426.50 78.50 179.80 a 420.00 787.00 1124.00 1384.00 10160.80
1921 1410.50 1164.00 1265.00 889.00 663.50 377.00 223.00 259.50 690.50 702.50 1209.50 1432.50 10286.50
1922 1616.50 1656.50 1217.00 948.50 632.00 294.50 262.50 200.00 410.00 628.00 1065.00 1697.00 10627.50
1923 1376.50 1420.00 1215.50 843.00 579.00 329.00 108.00 235.00 369.00 709.50 839.00 1251.00 9274.50
1924 1538.00 1018.00 1213.50 880.00 533.00 418.45 a 196.00 289.00 423.50 685.00 1192.50 1755.00 10141.95
1925 1408.50 1144.00 1170.00 759.00 514.00 294.00 132.50 220.50 471.50 1035.50 937.76 a 1001.00 9088.26
1926 1123.00 900.50 867.50 682.00 474.00 319.50 93.50 246.50 685.00 631.50 1065.50 1328.50 8417.00
1927 1475.00 1256.50 1121.50 906.50 726.50 338.50 225.50 281.50 528.00 671.00 1371.00 1729.50 10631.00
1928 1244.00 1193.50 1022.00 971.00 436.50 485.00 205.00 332.22 a 469.00 912.00 1048.50 1350.00 9668.72
1929 1923.50 1496.00 1057.50 910.50 584.00 366.50 122.00 84.00 537.00 628.78 a 1073.00 1481.00 10263.78
1930 1889.50 951.00 1161.50 582.00 557.50 306.00 118.00 104.50 351.50 852.50 972.00 1018.00 8864.00
1931 1003.50 918.00 1051.00 751.50 474.00 214.50 147.50 111.50 416.50 614.50 1173.00 1154.50 8030.00
1932 1448.50 1196.50 1343.00 699.50 494.50 234.00 114.50 152.50 363.00 778.50 982.50 1439.00 9246.00
1933 1313.50 1365.00 1088.50 855.00 531.50 190.50 100.00 154.50 440.50 732.00 860.50 1531.50 9163.00
1934 1045.70 c 996.07 a 794.00 f 569.00 325.00 305.36 b 90.23 c 114.00 467.31 d 645.00 658.00 f 1250.50 5808.17
1935 1534.00 823.00 1117.50 764.50 h 568.50 313.50 103.00 177.00 355.50 641.59 c 933.21 b 1025.00 7591.80
1936 1410.50 c 1989.50 1144.50 792.00 336.50 218.50 20.00 129.50 390.00 618.00 856.50 1380.50 9286.00
1937 1940.50 1448.00 1163.00 714.00 436.00 244.14 a 53.00 209.50 529.00 564.50 907.50 g 1283.83 b 8585.46
1938 1204.00 1393.00 1096.00 757.00 554.50 255.00 53.00 n 136.00 g 158.00 603.00 1154.50 1225.00 8400.00
1939 1118.00 1359.00 1051.00 641.00 425.50 429.00 76.95 c 112.00 313.00 740.50 760.50 959.50 7985.95
1940 1479.00 1237.50 951.50 817.00 383.50 190.00 72.00 110.00 258.00 541.50 1216.00 1110.50 8366.50
1941 1201.00 1063.00 1010.50 706.50 465.50 274.50 74.92 a 179.00 549.50 723.50 888.00 1230.00 8365.92
1942 1194.50 1269.00 1022.50 670.50 581.00 389.50 136.00 163.00 383.50 590.50 1139.50 1302.50 8842.00
1943 1740.50 1054.00 1379.00 638.00 630.50 463.00 103.50 145.50 320.00 575.00 864.50 1120.50 9034.00
1944 1072.50 1268.50 1287.50 671.00 422.00 308.50 115.00 243.00 352.50 392.50 1071.00 1173.50 8377.50
1945 1146.50 1227.50 1041.00 978.50 556.00 380.00 90.00 107.50 452.50 537.50 1160.00 1296.50 8973.50
1946 1184.00 1078.00 900.00 632.00 552.00 323.50 87.00 171.50 418.50 919.50 1235.00 1364.50 8865.50
1947 1455.50 1264.00 1242.00 705.00 481.00 353.00 47.00 199.00 433.50 604.00 1130.00 1193.50 9107.50
1948 1221.00 1459.00 1333.50 871.00 533.50 271.50 199.50 177.50 334.50 595.50 1074.00 1628.00 9698.50
1949 1793.50 1429.00 1155.50 559.50 423.00 288.00 133.50 110.00 338.00 856.00 645.00 1550.50 9281.50
1950 2276.50 1001.50 1248.50 907.00 605.00 346.50 158.50 173.00 399.00 692.00 1164.00 1105.00 10076.50
1951 1602.50 1258.32 c 1453.90 a 848.00 521.50 465.00 142.50 268.00 510.00 888.00 991.50 1630.50 10579.72
1952 1528.00 1159.00 1284.50 638.50 501.50 338.50 191.00 177.50 269.50 553.50 1068.50 1085.50 8795.50
1953 1250.50 1045.50 1054.00 987.00 576.00 371.00 150.00 140.00 317.50 481.50 780.50 1151.00 8304.50
1954 1797.48 a 906.00 1325.50 1035.50 555.00 404.00 118.50 194.50 456.00 743.00 751.00 1083.00 9369.48
1955 1261.00 1314.00 1451.83 a 842.50 642.00 331.00 179.00 126.00 478.00 641.50 1452.00 1413.00 10131.83
1956 1453.50 1342.50 1154.00 846.50 530.62 a 271.00 162.50 201.50 360.00 718.50 932.00 1178.00 a 9150.62
1957 1766.00 1316.50 1076.50 806.00 432.45 a 312.32 b 95.58 a 218.50 321.72 a 859.00 1031.11 c 1063.50 9299.19
1958 991.00 1186.50 1234.00 787.00 282.00 303.00 151.00 69.50 374.00 554.00 1081.00 1199.50 8212.50
1959 1451.00 1365.00 1013.70 a 800.50 660.50 265.50 99.50 218.00 464.48 a 769.00 1199.50 1057.00 9363.68
1960 1485.00 1328.00 1222.50 823.00 577.00 296.50 50.50 169.00 314.00 588.50 1069.00 1160.50 9083.50
1961 1108.50 953.00 979.50 895.50 486.50 96.00 76.00 26.50 599.00 714.50 1110.50 1475.00 8520.50
1962 1444.00 1254.50 1297.00 624.50 568.00 257.50 153.00 149.50 330.50 517.50 841.00 1119.50 8556.50
1963 1672.97 a 847.00 936.50 750.00 526.00 281.50 113.50 125.00 198.50 494.50 958.00 1316.00 8219.47
1964 1272.50 1032.50 1283.50 805.50 539.50 263.50 46.00 257.00 541.00 554.00 1104.00 1732.50 9431.50
1965 1384.15 a 1156.00 1407.00 752.50 555.00 338.00 88.50 141.00 678.00 411.00 1028.50 1217.00 9156.65
1966 1630.00 1166.50 995.00 828.50 427.00 361.50 105.50 242.00 220.00 654.50 1163.50 1199.00 8993.00
1967 1257.00 1060.00 1324.50 1007.50 599.50 324.50 80.50 78.50 167.50 641.50 1033.00 1387.00 8961.00
1968 1399.50 1001.50 834.50 821.50 558.50 320.00 137.00 220.50 324.00 641.50 949.50 1603.00 8811.00
1969 2095.00 1306.50 1192.00 572.50 430.00 299.00 169.00 97.00 304.50 856.50 828.00 1097.50 9247.50
1970 1575.00 978.50 1197.00 923.50 465.00 149.50 64.00 87.00 417.50 706.00 1158.50 1418.00 9139.50
1971 1638.00 1055.50 1212.50 769.00 514.50 315.50 147.00 12.00 399.00 568.52 c 973.00 1671.00 9275.52
1972 1802.50 1351.50 1031.50 843.50 509.00 284.00 200.95 c 92.50 561.50 712.00 959.50 1515.00 9863.45
1973 1252.00 1094.00 944.50 826.00 452.00 252.50 74.00 0.00 z 285.50 599.00 1260.00 1182.50 8222.00
1974 1447.24 d 994.00 1158.00 672.00 612.00 173.00 65.00 176.00 341.00 478.50 903.00 1141.00 8160.74
1975 1393.45 a 1481.50 1231.22 a 1052.50 594.50 357.93 a 46.00 219.00 306.43 b 768.50 1058.65 d 1195.22 d 9704.90
1976 1257.64 b 1084.60 d 1181.00 635.00 405.50 402.50 97.00 85.00 181.55 a 467.00 h 895.50 1092.23 a 7317.52
1977 1299.62 e 776.50 1039.50 607.00 555.50 206.90 a 195.82 a 294.50 485.00 753.50 693.00 l 1224.50 g 6213.83
1978 1741.50 1424.37 a 1071.57 a 836.50 640.50 309.50 162.00 225.00 313.89 c 539.92 a 1422.50 1650.23 a 10337.48
1979 1901.50 1507.50 1094.00 904.50 645.32 a 301.03 a 145.91 b 82.50 227.00 437.00 l 1051.00 1107.00 8967.27
1980 0.00 z 0.00 z 1193.50 556.80 e 460.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2210.80
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 0.00 z 0.00 z 0.00 z 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 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 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
1985 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 352.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 352.00
1986 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
1987 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
1988 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
1989 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
Period of Record Statistics
MEAN 1452.51 1224.46 1165.09 782.44 524.72 309.93 129.79 172.05 408.35 680.80 1053.51 1310.00 9257.62
S.D. 274.24 211.32 170.53 135.69 94.98 79.60 56.40 68.59 119.51 136.16 194.27 209.95 700.49
SKEW 0.78 0.45 -0.03 -0.19 -0.44 -0.01 0.52 -0.05 0.26 0.44 0.70 0.39 0.23
MAX 2276.50 1989.50 1524.00 1055.50 726.50 502.50 298.00 332.22 690.50 1054.50 1812.50 1755.00 10631.00
MIN 991.00 776.50 680.00 426.00 269.50 96.00 20.00 12.00 158.00 392.50 602.50 958.42 7985.95
NO YRS 76 77 76 74 75 78 78 76 77 77 75 77 60