DILLON 1 E, COLORADO

Monthly Total Heating Degree Days

(052281)

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
1893 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
1894 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
1895 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
1896 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
1897 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
1898 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
1899 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
1900 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
1901 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
1902 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
1903 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
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 0.00 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 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
1910 0.00 z 0.00 z 0.00 z 0.00 z 541.90 e 0.00 z 0.00 130.00 396.11 c 822.50 1162.50 1850.50 4903.52
1911 1375.50 1185.85 a 1173.00 991.03 a 663.00 392.50 382.00 370.50 536.00 949.00 1247.50 1606.00 10871.89
1912 1550.50 1432.50 1442.00 0.00 z 816.50 525.50 373.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 6140.00
1913 0.00 z 0.00 z 1438.50 989.00 712.00 490.00 367.50 351.50 641.00 1017.00 1103.50 1797.50 8907.50
1914 1478.18 a 1438.50 1455.00 984.50 720.00 487.50 323.00 395.50 555.00 880.00 1184.50 1754.50 11656.18
1915 1729.50 1368.50 1447.50 821.00 779.50 518.50 377.00 442.00 534.00 891.50 1263.50 1550.50 11723.00
1916 1566.50 1386.00 1183.50 950.50 763.00 507.50 322.50 391.50 605.50 932.50 1388.50 1661.50 11659.00
1917 1702.00 1453.50 1590.50 1117.50 920.00 543.50 301.00 421.00 532.50 979.00 1152.00 1345.50 12058.00
1918 1710.00 1382.50 1279.50 1093.00 755.50 368.00 340.50 365.50 560.50 822.50 1402.50 1679.50 11759.50
1919 1779.50 1472.50 1383.50 901.00 711.00 467.50 256.00 335.00 466.03 a 1026.50 1272.00 1623.00 11693.54
1920 1578.00 1432.00 1435.50 1216.50 711.00 498.00 348.00 430.00 621.00 962.50 1303.50 1652.82 a 12188.82
1921 1573.00 1439.50 1192.50 1094.00 714.50 447.50 338.00 375.50 583.50 874.50 1135.50 1346.50 11114.50
1922 1887.50 1400.52 a 1434.50 1069.50 768.00 454.50 369.50 299.00 550.00 905.00 1414.00 1544.50 12096.52
1923 1525.50 1559.00 1549.48 a 1136.50 722.00 533.00 272.00 428.50 657.50 1041.00 1250.69 a 1615.50 12290.67
1924 1820.50 1450.50 1558.50 1067.50 793.50 469.00 391.50 405.00 641.00 891.00 1207.50 1725.50 12421.00
1925 1729.00 1342.00 1269.50 895.50 673.22 a 466.50 335.00 364.00 543.50 901.50 1265.00 1545.50 11330.22
1926 1764.00 1323.50 1427.50 912.00 677.35 a 431.50 366.00 335.00 519.50 850.50 1179.00 1772.37 e 11558.21
1927 1516.50 1355.50 1369.00 968.00 671.00 468.00 323.00 451.00 542.50 886.50 1084.50 1782.50 11418.00
1928 1540.50 1519.50 1252.50 1074.00 651.50 538.00 329.50 418.50 552.50 828.00 1230.00 1651.50 11586.00
1929 1627.50 1624.00 a 1196.50 f 1132.50 799.00 538.50 336.00 316.00 459.00 f 928.34 c 1439.50 1498.00 10239.34
1930 1737.00 1210.00 1459.14 b 885.60 e 808.07 a 485.50 340.50 354.00 594.50 630.50 i 1312.50 1702.00 10888.80
1931 1137.50 i 1287.00 1444.08 a 1008.50 831.00 414.00 297.00 386.50 463.50 865.50 1267.50 1568.00 9832.58
1932 1794.42 e 1320.50 1062.50 i 1005.00 697.50 525.50 331.00 260.00 j 362.00 l 939.50 1146.00 1672.50 9431.92
1933 1612.00 1505.00 1319.16 c 1140.00 e 924.00 414.31 a 273.00 402.00 464.00 792.00 1119.00 1289.00 11253.47
1934 1452.00 1166.00 1132.00 851.50 562.00 475.50 277.00 313.00 643.50 272.50 s 1149.50 1416.50 9438.50
1935 1437.50 1343.00 1267.00 958.50 755.50 476.38 a 347.50 307.00 527.50 917.00 1213.00 1530.00 11079.88
1936 1534.50 b 1310.50 1314.00 879.23 d 608.50 356.00 253.00 314.50 555.00 903.50 1195.86 a 1442.02 a 10666.61
1937 1807.00 1387.50 1309.00 970.34 a 645.00 453.00 310.00 303.50 507.50 834.00 1148.50 1427.00 11102.34
1938 1572.00 1345.50 1244.00 1026.00 769.00 422.50 381.82 a 264.02 a 480.50 812.00 1436.00 1542.50 11295.83
1939 1582.50 1625.00 1327.50 906.50 609.48 c 461.50 243.50 326.00 437.50 899.00 1156.00 1359.50 10933.98
1940 1629.50 1324.00 1229.00 921.00 643.00 403.50 268.00 368.00 353.00 g 639.50 f 1247.50 1349.50 9383.00
1941 1510.50 1227.50 1251.88 a 993.50 618.50 456.00 316.72 a 359.00 577.00 813.00 1196.00 1389.00 10708.60
1942 1647.00 1583.56 a 1560.50 941.50 738.50 486.50 346.00 360.00 534.50 815.00 1132.50 1440.50 11586.06
1943 1501.50 1255.00 1356.50 800.50 720.00 477.00 289.50 313.50 524.50 856.00 1171.50 1461.50 10727.00
1944 1557.00 1403.00 1312.00 1069.50 737.50 452.00 345.00 324.50 536.50 775.00 1119.00 e 1475.17 b 11106.17
1945 1449.00 1274.50 1329.50 1069.66 a 693.00 564.50 324.50 302.50 566.00 826.00 1263.50 1587.00 11249.66
1946 1631.50 1367.50 1112.50 772.00 788.00 442.00 278.50 340.50 526.00 870.00 1201.00 1337.00 10666.50
1947 1307.00 f 1251.50 1335.50 1020.50 669.00 531.00 317.50 330.00 488.00 778.00 1333.00 1525.50 9579.50
1948 1526.00 1372.84 a 1425.00 943.50 680.00 471.00 341.50 376.00 481.50 835.00 1363.00 1466.50 11281.84
1949 1700.50 1397.00 1215.50 928.50 708.00 486.00 323.00 387.00 524.00 907.00 962.50 1427.50 10966.50
1950 1478.00 1290.50 1295.50 922.00 818.00 476.50 409.50 486.50 554.50 677.50 1064.00 1360.50 10833.00
1951 1530.50 1302.50 1376.00 984.50 706.50 578.50 282.00 391.00 532.50 819.50 1297.00 1471.00 11271.50
1952 1566.00 1449.50 1454.50 904.50 688.50 368.00 329.50 368.50 495.50 747.00 1319.50 1547.50 11238.50
1953 1248.50 1342.00 1182.50 1054.50 824.00 401.00 245.50 360.50 466.50 768.00 1050.50 1489.00 10432.50
1954 1272.50 1080.50 1278.00 815.50 648.00 455.00 267.00 336.00 446.00 745.00 1027.00 1475.50 9846.00
1955 1605.50 1503.50 1351.50 1059.00 700.50 524.00 303.50 312.00 508.50 837.50 1220.00 1286.00 11211.50
1956 1321.00 1537.00 1321.50 986.90 a 604.50 366.21 a 351.50 429.50 499.00 823.50 1353.50 1512.00 11106.10
1957 1526.50 1093.50 1258.00 1038.50 761.57 a 463.00 301.50 339.00 614.50 801.50 1307.00 1453.00 10957.57
1958 1637.00 1176.50 1335.50 1095.00 623.00 398.00 359.00 303.00 516.50 866.50 1145.00 1335.50 10790.50
1959 1515.00 1279.00 1364.50 1016.50 692.50 398.00 342.50 355.50 601.00 891.00 1165.34 a 1382.00 11002.84
1960 1558.00 1502.50 1151.00 914.50 755.50 451.00 350.50 384.00 485.50 864.50 1156.50 1461.00 11034.50
1961 1607.50 1313.00 1227.50 1049.50 703.50 345.00 259.50 226.00 600.50 785.50 1254.50 1531.00 10903.00
1962 1734.00 1170.50 1416.00 815.50 630.50 378.50 237.50 273.50 443.50 688.00 999.50 1373.00 10160.00
1963 1586.00 1205.00 1288.50 815.50 531.50 350.00 119.00 246.00 333.00 571.50 1015.50 1445.00 9506.50
1964 1608.50 1575.00 1474.00 1007.50 688.50 465.50 213.00 362.50 525.50 789.00 1147.50 1457.00 11313.50
1965 1409.00 1344.00 1497.50 975.00 716.50 485.00 292.50 412.00 614.50 758.00 1067.00 1347.00 10918.00
1966 1613.50 1443.00 1231.00 959.00 688.50 476.00 206.00 348.50 507.50 817.50 1006.50 1485.00 10782.00
1967 1420.00 1322.50 1087.00 927.50 775.00 509.50 256.50 362.00 498.50 773.00 1108.00 1503.50 10543.00
1968 1470.00 1270.50 1291.50 1093.00 789.00 423.50 292.00 383.50 588.50 777.00 1293.50 1453.00 11125.00
1969 1354.50 1334.00 1468.50 844.50 597.50 509.00 207.50 207.50 468.50 998.00 1228.50 1386.00 10604.00
1970 1504.50 1243.00 1382.00 1153.50 701.50 448.00 271.00 253.00 558.00 998.00 1139.50 1415.50 11067.50
1971 1437.00 1329.50 1336.50 949.00 755.00 425.00 292.00 287.00 584.00 825.50 1180.00 1528.00 10928.50
1972 1544.00 1282.50 1080.00 876.50 735.50 397.00 274.50 325.00 513.50 760.50 1301.00 1493.50 10583.50
1973 1554.50 1307.50 1281.00 1096.50 733.50 461.00 334.00 298.50 521.00 769.50 1046.50 1407.50 10811.00
1974 1528.00 1358.50 1101.00 1009.00 618.50 409.00 288.00 373.50 538.00 745.50 1133.50 1542.50 10645.00
1975 1502.00 1372.50 1256.50 1036.50 768.50 503.00 277.00 351.00 550.50 786.00 1192.00 1306.50 10902.00
1976 1501.50 1174.00 1283.50 903.00 693.00 456.00 260.00 373.50 506.00 906.50 1167.00 1441.00 10665.00
1977 1570.50 1274.50 1393.50 914.00 694.00 335.50 242.50 297.50 459.50 805.50 1103.00 1390.50 10480.50
1978 1498.50 1292.50 1133.00 870.50 809.00 406.50 248.00 354.00 504.00 819.00 1086.50 1609.00 10630.50
1979 1765.00 1348.50 1282.50 979.00 732.50 490.50 259.00 334.00 448.50 774.50 1400.50 1471.50 11286.00
1980 1477.50 1306.50 1344.50 1070.50 739.00 399.00 234.50 323.00 502.00 901.50 1114.00 1118.50 10530.50
1981 1312.50 1235.50 1227.00 829.00 720.50 338.50 250.50 311.00 457.50 842.50 1035.50 1395.50 9955.50
1982 1526.00 1330.50 1238.97 a 1064.00 753.00 513.50 326.50 263.00 515.00 965.00 1240.50 1456.00 11191.97
1983 1425.50 1273.00 1232.50 1166.50 843.50 504.50 269.50 233.50 445.50 797.00 1139.50 1499.50 10830.00
1984 1660.00 1426.00 1339.50 1130.50 684.00 481.00 254.00 309.50 518.00 1012.00 1168.50 1388.00 11371.00
1985 1587.00 1452.50 1225.00 883.00 676.00 411.50 270.50 308.50 616.50 864.00 1186.07 b 1445.50 10926.07
1986 1389.00 1182.50 1078.00 921.00 722.00 394.00 329.50 323.00 587.50 888.50 1128.00 1483.00 10426.00
1987 1548.50 1252.50 1289.00 921.00 673.50 394.00 302.00 355.50 565.00 772.50 1153.50 1500.50 10727.50
1988 1638.00 1389.50 1385.50 938.50 719.50 329.50 0.00 z 288.00 573.50 735.50 1185.50 1542.00 10725.00
1989 1555.00 1293.00 1093.00 882.50 685.00 490.50 234.50 362.50 510.00 868.50 1134.50 1501.50 10610.50
1990 1518.00 1277.50 1131.50 892.50 771.00 358.00 294.50 363.50 436.50 866.50 1078.00 1597.00 10584.50
1991 1587.50 1226.00 1268.00 1039.00 698.50 430.50 319.50 329.00 528.00 797.00 1218.00 1454.50 10895.50
1992 1524.50 1313.00 1150.50 813.00 615.00 466.00 370.00 382.50 533.50 747.50 1352.50 1489.00 10757.00
1993 1438.50 1279.50 1226.00 1021.00 699.50 486.50 342.50 357.00 585.50 892.00 1302.00 1494.00 11124.00
1994 1498.50 1307.50 1154.50 932.50 636.50 318.00 273.00 255.00 509.50 854.50 1200.50 1381.00 10321.00
1995 1502.50 1112.50 1172.50 1011.50 817.50 502.00 363.50 250.50 514.00 923.50 1053.50 1380.00 10603.50
1996 1529.50 1271.50 1299.50 1001.50 616.50 416.00 252.50 318.00 590.00 877.50 1099.50 1425.50 10697.50
1997 1476.00 1344.50 1158.50 1067.50 717.00 413.50 301.00 337.50 435.50 871.50 1218.50 1497.00 10838.00
1998 1426.00 0.00 z 1268.50 1036.00 676.00 509.00 206.50 289.00 400.50 823.00 1060.50 1380.00 9075.00
1999 1390.00 1225.50 1085.00 1042.50 793.00 473.50 244.00 307.00 572.50 828.50 975.00 1422.50 10359.00
2000 1367.50 1181.00 1182.00 860.00 617.00 393.50 171.00 f 226.50 463.50 780.00 1392.50 1472.00 9935.50
2001 1563.00 1224.50 1157.00 882.00 652.00 370.50 199.50 293.50 488.00 810.50 1054.50 1483.50 10178.50
2002 1548.00 1410.50 1363.00 789.50 698.00 309.00 171.50 303.50 506.50 907.00 1280.00 1470.50 10757.00
2003 1300.50 1327.00 1218.00 917.50 679.00 460.50 171.00 244.50 570.50 692.50 1173.00 1394.50 10148.50
2004 1493.50 1434.50 1068.00 865.50 672.50 431.50 322.50 391.00 537.41 a 820.50 1150.00 1466.50 10653.41
2005 1343.00 1268.00 1273.00 949.00 698.00 493.50 222.00 357.00 466.00 798.00 1170.00 1562.00 10599.50
2006 1510.50 1377.50 1243.00 875.00 634.50 357.50 216.50 322.00 654.00 934.00 1133.00 1466.00 10723.50
2007 1606.00 1250.50 1133.50 932.00 690.00 401.00 118.00 138.00 415.00 745.00 1057.00 1564.50 10050.50
2008 1660.50 1399.00 1427.00 1128.00 793.00 470.50 249.50 322.50 548.50 851.00 1076.00 1514.00 11439.50
2009 1434.50 1235.00 1196.00 1035.00 0.00 z 486.00 302.00 392.00 515.50 989.50 1099.00 1622.50 10307.00
2010 1527.50 1446.00 1286.00 970.50 786.50 383.50 229.00 292.50 467.50 803.00 1248.00 1311.00 10751.00
2011 1604.00 1454.50 1195.50 996.00 827.00 445.00 219.50 266.94 d 513.00 863.50 1164.00 1481.00 11029.94
2012 1434.50 1365.00 1061.00 794.50 645.50 308.00 200.50 280.00 505.00 833.00 1034.00 1440.00 9901.00
2013 1614.50 1401.00 1301.50 65.00 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 4317.00
Period of Record Statistics
MEAN 1546.20 1339.73 1288.88 972.56 711.79 445.98 287.99 333.53 525.24 846.19 1184.99 1488.91 10950.67
S.D. 123.54 111.63 122.58 98.19 72.50 60.10 64.67 60.57 60.39 81.52 107.89 121.27 540.19
SKEW 0.19 0.26 0.22 0.08 0.23 -0.31 -1.14 -0.57 -0.15 -0.01 0.35 0.51 0.27
MAX 1887.50 1625.00 1590.50 1216.50 924.00 578.50 409.50 486.50 657.50 1041.00 1439.50 1850.50 12421.00
MIN 1248.50 1080.50 1061.00 772.00 531.50 308.00 0.00 130.00 333.00 571.50 962.50 1118.50 9506.50
NO YRS 100 101 101 101 102 102 101 101 99 99 102 102 89