JORDAN, MONTANA

Monthly Total Heating Degree Days

(244522)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1905 1268.00 i 1478.00 806.00 0.00 z 482.50 194.00 14.00 13.50 0.00 z 178.00 q 1066.50 1362.40 b 5416.90
1906 1358.50 1133.50 1346.00 577.50 394.50 181.61 b 27.50 87.32 a 144.00 552.83 a 1096.00 1459.50 8358.76
1907 1968.00 1273.00 1047.80 a 802.00 630.00 153.50 38.00 f 0.00 z 301.50 j 503.00 880.00 1201.50 8458.80
1908 1301.00 1204.50 1108.50 0.00 z 524.50 187.78 c 1.00 81.00 215.50 709.00 993.75 b 1249.00 7575.53
1909 1809.00 1269.33 a 0.00 z 957.00 0.00 z 127.00 23.00 11.50 133.00 664.95 a 959.50 1762.50 7716.78
1910 1452.00 1488.00 669.00 428.50 376.50 108.50 10.00 0.00 z 0.00 z 348.00 1034.00 1395.50 7310.00
1911 1813.00 1589.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1421.79 b 1324.65 e 6148.44
1912 1772.88 b 1293.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 465.58 d 615.00 856.50 0.00 z 5003.46
1913 1672.50 1416.00 1308.09 c 493.45 a 321.33 e 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5211.36
1914 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
1915 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
1916 0.00 z 0.00 z 617.50 m 313.00 j 417.50 137.50 f 3.50 8.00 u 119.50 u 723.00 916.00 1653.69 b 3713.69
1917 1655.00 1592.89 a 1382.50 770.50 443.82 a 188.57 b 0.00 45.50 234.00 707.12 b 797.14 b 1669.50 9486.54
1918 1793.72 b 1401.50 917.27 c 710.36 b 362.50 70.34 a 41.16 b 59.50 0.00 z 421.00 1135.18 b 1184.41 b 8096.94
1919 1103.00 1423.50 1396.50 589.66 a 384.52 e 67.76 a 5.34 b 1.15 d 198.10 a 799.50 f 1294.00 1560.33 a 8023.86
1920 1538.00 1286.50 576.00 m 879.83 a 338.70 d 151.80 e 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4194.83
1921 0.00 z 0.00 z 0.00 z 632.07 a 322.00 44.00 21.50 11.00 0.00 z 0.00 z 0.00 z 0.00 z 1030.57
1922 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
1923 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
1924 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
1925 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
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 2.50 1.00 210.50 768.28 a 1007.00 1115.50 3104.78
1931 1067.95 a 881.00 1000.00 529.00 286.50 36.00 29.00 25.00 153.00 552.00 1054.50 1302.50 6916.45
1932 1459.50 1262.50 1228.00 497.00 243.50 68.00 10.00 31.50 264.50 710.50 967.50 1562.00 8304.50
1933 1378.00 1424.00 863.50 653.00 341.50 3.00 2.50 21.50 186.00 595.50 875.50 1460.00 7804.00
1934 1208.50 952.00 952.00 529.50 136.00 53.00 7.50 43.50 353.50 451.00 788.50 1431.50 6906.50
1935 1634.73 a 1031.00 1095.00 705.50 419.00 95.50 0.00 49.50 193.00 618.50 1162.00 1164.50 8168.23
1936 1742.00 2160.00 993.00 709.00 137.50 45.50 0.00 24.50 149.00 528.50 959.50 1410.50 8859.00
1937 2089.00 1393.00 1098.00 594.50 158.50 88.00 1.00 10.50 161.00 517.50 1090.00 1483.00 8684.00
1938 1351.50 1471.50 968.50 625.86 a 371.50 79.50 1.00 19.00 36.00 495.50 1060.00 1218.50 7698.36
1939 1223.00 1528.00 938.50 508.50 180.00 167.50 0.00 42.50 155.50 583.00 796.00 1069.50 7192.00
1940 1802.50 1299.00 967.00 723.50 207.00 64.00 3.50 26.02 c 130.34 a 415.92 a 1219.50 1155.50 8013.78
1941 1280.00 1106.50 970.00 616.50 174.00 102.50 5.00 38.50 338.50 585.50 904.00 1181.50 7302.50
1942 1343.50 1272.50 951.00 463.00 369.50 173.00 11.00 37.50 234.00 556.89 c 1009.00 1406.88 a 7827.78
1943 1832.00 1141.50 1277.50 399.00 389.50 160.00 7.50 6.00 228.00 511.00 935.00 1148.50 8035.50
1944 1262.00 1247.00 1328.50 564.50 262.00 183.50 43.50 54.50 240.00 481.50 1119.50 1351.50 8138.00
1945 1486.00 1244.00 970.00 761.00 463.00 267.50 12.50 25.50 309.00 510.50 1073.50 1534.50 8657.00
1946 1198.50 1137.50 776.00 403.50 384.50 86.00 6.50 62.00 259.50 736.00 1146.50 1435.00 7631.50
1947 1384.50 1355.50 1315.50 692.00 353.00 122.00 0.00 4.50 249.50 412.00 1049.00 1168.00 8105.50
1948 1285.00 1365.50 1117.00 534.00 268.50 100.00 5.00 4.50 101.00 520.05 b 956.50 1643.50 7900.55
1949 1858.00 1581.50 1120.50 379.50 198.50 64.50 0.50 16.50 207.50 629.00 681.50 1580.00 8317.50
1950 2258.50 747.00 l 895.00 i 721.50 392.15 a 149.00 28.00 46.00 270.00 a 529.50 1141.50 1251.50 6787.65
1951 1595.50 1221.00 1415.50 738.00 269.00 194.00 52.50 59.00 338.50 683.00 1051.50 1693.00 9310.50
1952 1778.00 1299.00 1375.00 409.50 247.50 60.50 23.50 30.00 124.00 584.00 1053.00 1327.50 8311.50
1953 1228.50 1044.50 909.50 782.00 422.50 101.50 1.00 8.50 169.00 393.50 815.00 1127.00 7002.50
1954 1776.50 786.50 1245.50 715.50 386.00 185.50 17.00 21.50 250.00 618.45 a 722.00 1092.00 7816.45
1955 1398.50 1286.00 1194.00 587.00 331.50 125.50 32.00 10.00 296.50 513.00 1375.00 1540.50 8689.50
1956 1684.50 1406.00 979.00 764.50 318.00 19.50 16.50 60.50 189.50 508.00 893.50 1219.00 8058.50
1957 1855.00 1303.50 1007.00 701.90 a 267.50 87.00 0.00 24.50 228.50 664.00 926.50 1028.00 8093.40
1958 1109.00 1283.00 1029.50 598.00 130.50 140.00 45.50 16.50 209.50 499.50 1020.50 1332.00 7413.50
1959 1608.50 1569.00 886.50 626.00 409.50 50.00 7.50 7.00 293.00 721.00 1164.00 1062.00 8404.00
1960 1608.50 1390.50 1178.00 626.50 295.50 71.00 6.00 17.00 206.00 481.50 1000.50 1268.50 8149.50
1961 1272.00 886.08 d 767.50 683.50 281.50 6.00 1.50 1.00 374.50 566.00 1009.50 1479.00 7328.08
1962 1455.50 1266.00 1255.50 475.50 336.00 74.00 14.00 45.50 248.00 446.50 752.00 1185.00 7553.50
1963 1792.00 992.00 786.50 625.00 338.50 65.00 8.50 32.50 50.50 355.00 898.00 1456.50 7400.00
1964 1245.50 1032.50 1129.50 589.00 279.00 109.50 0.50 75.00 302.00 498.00 1108.50 1825.00 8194.00
1965 1602.00 1286.00 1504.50 680.00 377.50 94.50 2.00 42.88 a 534.50 443.00 1009.50 1231.00 8807.38
1966 1779.00 1372.50 910.50 749.00 284.00 111.50 0.00 68.00 126.00 575.00 1147.00 1378.00 8500.50
1967 1317.50 1051.12 c 1126.00 786.50 385.00 104.50 13.00 9.50 132.50 498.00 1019.50 1489.50 7932.62
1968 1503.00 1186.00 783.50 673.50 409.00 137.00 15.00 33.00 185.50 554.00 944.50 1644.00 8068.00
1969 2109.50 1425.00 1255.50 450.00 304.50 145.50 17.50 4.50 116.00 776.50 817.00 1239.50 8661.00
1970 1676.00 1070.50 1106.50 751.00 328.50 47.50 7.50 6.50 271.00 677.50 1054.00 1458.50 8455.00
1971 1681.50 1220.50 1013.00 610.00 317.00 66.50 22.50 1.50 286.50 603.00 948.50 1678.00 8448.50
1972 1786.50 1456.50 940.50 644.50 302.50 36.00 69.50 11.50 298.00 663.00 981.50 1615.00 8805.00
1973 1321.50 1051.00 828.00 696.00 348.00 79.50 4.50 2.50 242.00 478.36 b 1181.50 1300.50 7533.36
1974 1488.00 951.50 800.00 g 506.50 444.00 74.00 1.00 64.50 273.00 482.00 934.00 1193.00 6411.50
1975 1341.50 1368.50 1124.00 795.00 361.00 98.00 2.00 37.00 233.00 573.00 1052.50 1268.00 8253.50
1976 1380.50 955.50 1023.00 529.00 197.00 88.50 2.00 8.00 154.00 646.87 a 1103.00 1222.00 7309.37
1977 1813.50 925.00 907.00 455.50 188.00 15.00 13.00 75.00 218.00 423.00 h 828.50 l 1543.44 e 6153.44
1978 1905.00 1492.00 1112.50 582.50 271.50 78.00 20.00 40.50 189.00 359.50 i 1271.00 1628.00 8590.00
1979 2010.50 1571.50 1107.00 724.00 397.00 78.00 9.09 b 11.50 117.00 474.50 1053.00 1111.72 b 8664.81
1980 1602.50 1176.50 0.00 z 261.00 f 163.50 g 38.00 0.00 50.08 e 194.00 532.50 834.00 1318.00 5745.58
1981 1108.50 1067.00 789.50 486.72 a 180.50 g 127.00 8.50 3.50 152.14 b 591.00 68.00 z 1385.46 e 5719.33
1982 1975.50 1360.50 1092.00 279.50 n 390.00 136.50 13.00 15.00 274.50 592.00 1137.50 1256.50 8243.00
1983 1209.50 884.50 881.00 675.50 381.00 94.50 8.00 0.00 265.00 527.50 967.50 1997.00 7891.00
1984 1253.50 904.50 254.50 w 569.00 322.50 60.00 j 0.00 7.00 364.50 676.50 986.00 1738.50 6822.00
1985 1599.00 1341.00 947.00 458.00 160.50 105.00 5.50 60.50 364.50 645.50 1058.00 m 1469.92 a 7156.42
1986 1106.50 1330.00 662.50 615.00 313.00 13.45 a 13.50 11.00 331.50 489.50 1079.50 1150.00 7115.45
1987 1182.00 916.00 883.00 378.00 176.00 43.50 19.00 73.00 160.50 579.00 868.00 1252.00 6530.00
1988 1545.00 1201.00 872.50 532.50 141.00 9.00 1.00 18.00 212.00 537.50 983.00 1273.00 7325.50
1989 1422.00 1597.00 1135.50 620.00 280.50 92.00 2.50 17.00 201.00 563.00 884.00 1477.00 8291.50
1990 1219.50 1085.50 848.00 559.50 311.50 96.50 4.00 3.00 98.50 566.50 899.50 1527.00 7219.00
1991 1601.50 795.00 877.00 591.00 286.50 28.00 1.00 7.50 181.50 665.50 1082.50 1119.00 7236.00
1992 1093.50 904.00 736.50 528.00 223.00 81.00 59.50 97.50 209.50 519.50 942.00 1516.00 6910.00
1993 1777.50 1507.50 862.00 569.00 212.50 122.00 88.50 62.50 268.00 566.00 1128.50 1112.50 8276.50
1994 1525.50 1467.50 769.50 547.00 192.50 56.00 3.50 23.00 84.50 536.50 999.00 1299.50 7504.00
1995 1292.00 990.00 978.50 687.50 369.00 89.50 5.00 8.50 211.50 567.50 1006.50 1476.50 7682.00
1996 1803.50 1191.50 1260.00 563.50 412.50 35.50 2.50 3.50 231.50 550.00 1306.50 1634.00 8994.50
1997 1627.50 959.50 893.50 709.50 290.50 8.50 22.50 17.50 85.00 514.00 986.50 1166.00 7280.50
1998 1530.00 844.50 1073.50 447.50 206.50 150.50 0.00 z 0.00 a 69.00 o 336.00 l 406.50 p 766.00 m 4252.50
1999 684.00 p 575.00 j 528.00 k 326.50 o 201.50 n 100.50 h 18.00 m 6.50 j 158.00 o 279.50 p 378.00 o 386.00 t 0.00
2000 719.00 o 782.00 j 416.50 n 616.50 273.50 134.50 0.50 17.00 0.00 z 602.50 1337.50 1577.12 c 4559.12
2001 1224.00 0.00 z 911.00 618.50 264.00 124.50 6.00 12.50 167.50 659.00 795.00 1289.00 6071.00
2002 1317.50 0.00 z 0.00 z 0.00 z 479.00 117.50 0.00 69.00 238.50 860.00 917.50 1227.50 5226.50
2003 1439.50 1258.00 1130.00 490.00 363.00 143.00 2.50 22.00 314.50 450.50 1230.50 1220.00 8063.50
2004 1662.00 1390.50 838.50 547.50 461.00 203.50 24.00 55.50 0.00 z 631.50 915.00 1134.50 7863.50
2005 1619.50 1007.50 879.00 561.00 429.50 111.50 16.50 65.50 237.00 550.00 866.00 1450.50 7793.50
2006 994.00 1113.00 1016.00 529.00 173.50 j 54.00 0.00 20.00 272.50 732.00 1015.50 1202.00 6948.00
2007 1328.50 1303.00 776.50 645.00 285.50 82.00 4.00 22.00 259.50 0.00 z 905.00 c 1350.57 a 6961.57
2008 1520.03 a 1325.00 954.50 0.00 z 0.00 z 182.00 16.00 36.00 301.00 630.00 884.50 1337.50 f 5849.03
2009 1406.33 e 1166.50 1117.50 686.50 406.50 200.00 29.00 60.00 143.00 812.50 848.50 1775.27 a 8651.59
2010 1597.00 1488.00 930.00 594.64 b 468.50 134.50 33.50 50.00 294.00 510.00 1145.00 1586.50 8831.64
2011 744.00 o 410.50 s 665.50 n 711.60 e 314.50 k 183.00 e 4.59 d 17.00 j 115.00 l 519.77 a 998.50 1162.00 3579.46
2012 0.00 z 1274.00 698.00 539.00 396.00 63.50 0.00 38.50 181.55 a 660.96 c 958.39 b 1301.00 6110.91
2013 1373.00 964.00 1045.00 30.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 51.00 z 3382.00
Period of Record Statistics
MEAN 1521.54 1240.71 1019.86 610.14 323.37 100.94 12.55 30.02 223.50 572.03 1007.33 1373.36 7985.44
S.D. 270.59 232.42 189.32 116.54 97.75 54.79 16.21 24.32 86.10 100.90 144.33 204.25 636.38
SKEW 0.29 0.42 0.41 0.20 0.07 0.40 2.26 0.72 0.63 0.36 0.44 0.54 -0.03
MAX 2258.50 2160.00 1504.50 957.00 630.00 267.50 88.50 97.50 534.50 860.00 1421.79 1997.00 9486.54
MIN 994.00 786.50 662.50 378.00 130.50 3.00 0.00 0.00 36.00 348.00 681.50 1028.00 6530.00
NO YRS 91 90 84 87 88 91 91 89 84 87 90 91 64