WALDEN, COLORADO

Monthly Total Heating Degree Days

(058756)

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
1897 1577.50 1358.50 1334.00 931.07 b 373.00 g 355.50 188.50 257.00 317.00 779.00 1117.00 1609.13 d 9824.20
1898 1671.00 1241.00 1330.00 777.50 676.50 322.50 137.00 91.00 392.50 894.50 0.00 z 1857.02 e 9390.52
1899 1434.00 1444.50 1229.00 928.50 649.00 368.50 155.50 59.50 t 0.00 z 0.00 z 971.00 1600.00 8780.00
1900 1532.50 1306.00 1055.50 830.00 539.00 198.50 115.50 159.50 419.50 739.50 1107.60 e 1466.50 9469.60
1901 1434.50 1277.50 1250.50 896.50 499.00 332.50 50.50 174.50 509.00 803.79 c 992.00 1433.50 9653.79
1902 1480.50 1108.00 1275.00 847.50 552.32 a 277.00 230.50 f 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5540.32
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 1350.29 e 1350.29
1904 1529.00 1116.50 0.00 z 0.00 z 563.00 356.50 310.50 281.00 470.00 398.00 n 1039.29 b 1416.50 7082.29
1905 1377.50 1541.00 1107.50 906.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4932.00
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1913 0.00 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
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 0.00 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
1917 0.00 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
1918 0.00 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
1919 0.00 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
1920 0.00 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
1921 0.00 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
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 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 0.00 z 0.00
1937 0.00 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
1938 1452.00 1351.00 1266.50 991.00 660.00 298.00 231.00 202.50 420.50 733.00 1366.50 1552.30 d 10524.30
1939 1516.00 1591.50 1206.50 841.50 546.50 358.00 172.50 269.50 402.00 0.00 z 1043.50 1216.50 9164.00
1940 1557.00 1261.00 1113.00 858.00 533.20 a 274.00 112.50 239.50 362.00 713.50 1325.00 782.50 j 8348.70
1941 1446.00 1182.00 1169.50 926.50 509.50 376.50 188.00 260.00 504.50 813.50 1117.00 1289.00 9782.00
1942 1587.00 1478.00 1341.50 771.00 704.39 d 111.00 q 171.00 244.00 510.00 787.00 1044.00 1364.50 10002.39
1943 1468.00 1214.00 1273.00 661.50 633.50 380.00 141.50 180.50 453.00 772.42 a 1103.50 1377.00 9657.92
1944 1523.00 1281.50 1260.00 932.00 578.50 360.00 210.00 232.00 452.50 708.50 1084.50 1499.50 10122.00
1945 1406.00 1276.00 1260.50 1023.50 559.00 435.00 162.00 208.00 500.00 720.00 1122.50 1423.00 10095.50
1946 1538.50 1239.50 1037.00 684.64 b 707.50 311.50 142.00 213.50 433.50 828.00 1175.50 1177.00 9488.14
1947 1528.00 1187.50 1172.00 878.50 528.00 427.00 141.00 173.00 375.50 645.50 1267.00 1461.13 a 9784.13
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 248.00 380.50 801.50 1298.50 1486.34 c 4214.84
1949 1835.09 c 1399.50 1146.00 808.50 592.50 367.50 202.00 278.00 475.80 e 876.00 914.50 1413.50 10308.89
1950 1459.58 a 1157.50 1164.50 848.50 750.50 354.50 284.50 375.21 b 506.00 642.00 1090.50 1179.03 a 9812.32
1951 1559.00 1282.50 1243.21 b 921.72 a 600.37 a 493.50 203.50 299.00 562.50 860.50 1261.00 1485.50 10772.30
1952 1599.50 1510.59 a 1454.50 915.00 641.00 281.00 250.50 303.50 503.00 804.50 1397.50 1669.00 11329.59
1953 1298.00 1399.50 1150.00 1034.50 788.50 336.00 210.50 359.00 520.50 809.50 1015.20 e 1513.00 10434.20
1954 1233.00 1073.50 1268.50 758.50 583.50 362.59 a 122.00 304.50 412.24 a 776.50 1021.50 1600.50 9516.83
1955 1726.00 1473.11 a 1341.00 920.50 621.00 428.00 193.00 211.50 472.50 838.50 1248.10 a 1333.00 a 10806.21
1956 1363.00 1635.00 1338.00 887.00 526.00 254.00 176.00 h 347.50 466.00 795.50 1330.00 1604.25 a 10546.25
1957 1622.00 1166.50 1291.50 947.88 d 713.00 387.00 187.50 276.50 586.00 804.50 1305.00 1380.00 10667.38
1958 1663.00 1113.50 1319.50 992.50 534.00 295.00 263.50 213.00 471.50 822.50 1069.50 1343.00 10100.50
1959 1516.50 1314.00 1299.50 928.00 644.50 276.00 240.50 274.35 a 560.50 879.00 1129.50 1338.00 10400.35
1960 1559.00 1597.00 1145.50 855.00 669.00 331.50 236.50 293.00 406.50 828.50 1155.58 d 1550.50 10627.58
1961 1573.00 1223.00 1174.00 945.00 a 597.50 311.00 216.50 200.50 638.50 830.00 1270.50 1529.00 10508.50
1962 1833.65 a 1211.00 1441.00 826.00 597.50 371.00 260.00 332.00 497.68 b 785.00 1061.00 1382.00 10597.83
1963 1752.00 1187.00 1274.00 899.00 621.50 369.50 202.00 283.00 398.00 674.50 1043.50 1392.00 10096.00
1964 1635.50 1591.50 1460.00 957.50 650.50 378.00 113.00 309.00 525.00 817.50 1186.50 1534.00 11158.00
1965 1492.00 1382.50 1621.50 874.50 695.00 376.00 192.00 342.50 595.50 730.00 1005.50 1327.00 10634.00
1966 1549.50 1382.00 1132.50 889.50 590.00 347.50 124.50 302.00 449.50 861.50 1012.50 1632.50 10273.50
1967 1471.00 1067.50 f 1091.50 902.50 720.50 427.50 206.00 317.00 501.50 792.50 1152.00 1615.00 9197.00
1968 1592.00 1401.00 1271.00 1065.00 769.00 370.50 218.50 344.50 595.00 806.50 1373.50 1478.50 11285.00
1969 1307.00 1303.50 1510.00 792.50 532.00 447.00 155.50 179.00 415.00 1010.50 1205.00 1426.00 10283.00
1970 1481.50 1260.50 1295.50 1031.00 604.00 378.00 185.50 204.00 547.00 995.50 1061.50 1411.50 10455.50
1971 1377.00 1391.00 1285.00 884.00 708.50 314.50 226.00 234.50 581.50 861.50 1189.50 1539.00 10592.00
1972 1463.50 1240.00 999.00 849.00 681.50 279.00 234.50 296.50 452.00 781.00 1302.50 1594.00 10172.50
1973 1743.00 1551.00 1365.00 1067.00 654.00 0.00 z 0.00 z 218.50 527.50 775.00 1104.00 1425.00 10430.00
1974 1582.50 1371.50 1054.50 934.50 569.50 317.00 200.00 363.00 569.50 786.50 1143.50 1590.50 10482.50
1975 1503.00 1362.50 1228.00 980.50 704.00 407.50 181.50 323.50 558.00 789.00 1233.50 1344.50 10615.50
1976 1503.50 1113.50 1307.50 836.00 613.50 368.00 159.00 309.00 0.00 z 0.00 z 0.00 z 0.00 z 6210.00
1977 0.00 z 0.00 z 0.00 z 0.00 z 629.76 d 138.50 h 163.86 c 245.00 443.00 794.00 1077.50 1279.00 4632.12
1978 1427.00 1219.50 1097.00 827.50 713.50 349.50 195.30 a 321.00 468.50 801.00 1137.50 1630.00 10187.30
1979 1715.50 1241.00 1234.50 904.00 673.50 388.00 197.48 d 267.00 415.00 765.50 1399.50 1348.50 10549.48
1980 1419.00 1254.50 1282.00 993.50 658.00 323.50 149.50 292.00 445.50 848.50 1132.50 1078.50 9877.00
1981 1290.50 1164.50 1122.50 731.50 670.50 256.00 151.00 246.50 364.50 831.00 1012.00 1319.50 9160.00
1982 1421.00 1270.50 1122.50 967.50 708.00 420.50 210.50 150.00 477.00 881.50 1235.50 1424.00 10288.50
1983 1409.50 1181.50 1129.00 1062.50 756.00 404.00 159.50 121.00 399.00 758.00 1128.00 1536.50 10044.50
1984 1651.50 1412.00 1250.00 1097.00 583.00 394.50 127.50 192.50 455.50 950.50 1137.50 1397.00 10648.50
1985 1652.00 1366.50 1139.00 817.50 603.00 328.50 178.00 279.50 584.50 830.00 1231.00 1469.00 10478.50
1986 1388.00 1162.50 996.00 844.00 661.50 264.00 231.00 230.50 540.50 832.00 1135.00 1400.50 9685.50
1987 1449.50 1132.50 1167.00 807.50 584.00 301.00 212.50 290.00 502.50 749.50 1242.50 1508.00 9946.50
1988 1577.00 1348.00 1360.00 836.50 651.50 189.50 152.00 197.00 513.00 675.00 1146.50 1497.50 10143.50
1989 1493.50 1376.50 1031.50 778.00 621.00 378.00 139.00 289.00 468.00 810.00 1050.52 a 1470.50 9905.52
1990 1364.00 1293.50 1075.50 803.50 682.50 280.50 207.50 262.00 338.50 798.00 1037.00 1559.50 9702.00
1991 1464.00 1114.00 1171.50 937.50 594.00 307.50 200.50 213.00 455.50 785.50 1226.50 1435.50 9905.00
1992 1555.00 1242.50 1033.50 709.50 506.00 356.00 276.50 291.50 438.00 718.00 1317.00 1497.00 9940.50
1993 1434.50 1321.00 1160.00 905.00 601.00 392.00 296.50 291.50 516.50 852.50 1323.50 1474.00 10568.00
1994 1422.50 1244.00 1076.00 821.00 521.50 246.50 201.50 171.00 449.50 819.50 1186.00 1353.50 9512.50
1995 1444.00 1052.00 1059.50 932.50 716.50 389.50 233.00 144.00 449.00 806.00 991.50 1328.50 9546.00
1996 1497.50 1304.00 1220.50 857.00 559.00 307.00 162.00 206.00 505.00 843.50 1086.50 1357.00 9905.00
1997 1485.50 1366.00 1068.00 991.00 609.50 275.00 202.50 220.50 371.50 791.50 1198.50 1437.50 10017.00
1998 1321.00 1210.50 1187.00 888.00 586.00 437.50 80.50 190.00 301.00 770.00 986.50 1424.00 9382.00
1999 1358.50 1165.00 1021.00 904.00 676.50 354.00 112.50 212.00 509.00 779.00 0.00 z 1445.50 8537.00
2000 1305.00 1091.50 1082.00 734.50 483.50 308.50 104.50 133.00 419.00 786.50 1378.00 1458.00 9284.00
2001 1619.00 1176.00 1114.00 786.50 556.50 269.00 84.50 161.50 398.50 741.00 1029.00 1418.00 9353.50
2002 1442.50 1316.00 1228.00 742.00 618.50 242.50 59.00 241.50 426.00 876.50 1266.50 1448.00 9907.00
2003 1228.50 1270.00 1075.00 827.00 567.00 373.00 81.00 174.50 515.50 674.50 1146.00 1406.00 9338.00
2004 1531.50 1448.00 1002.00 772.24 a 567.00 382.50 238.50 344.50 490.50 744.50 1155.00 a 1387.50 10063.74
2005 1386.50 1422.00 1255.00 853.00 628.00 391.50 169.00 300.00 453.00 727.00 1144.00 1571.50 10300.50
2006 1481.50 1353.50 1194.00 772.50 572.50 297.50 133.50 238.00 604.50 898.50 1090.50 1532.00 10168.50
2007 1825.00 1199.00 1098.50 854.00 604.00 337.00 119.00 178.00 410.00 763.50 1026.00 1508.50 9922.50
2008 1664.00 1421.00 1420.50 1072.50 688.00 399.00 182.00 253.00 501.00 835.50 1008.00 1402.00 10846.50
2009 1435.00 1202.00 1095.00 929.50 0.00 z 388.50 255.50 329.50 454.50 942.00 1197.00 1704.50 9933.00
2010 1677.50 1508.50 1319.50 896.00 727.50 312.50 191.00 251.00 459.50 753.50 1185.50 1360.00 10642.00
2011 1587.50 1481.00 1172.00 921.00 724.50 336.00 134.50 199.50 467.00 788.00 1138.50 1504.00 10453.50
2012 1373.00 1342.00 987.00 737.50 589.50 267.50 120.50 217.00 451.50 804.00 953.00 1470.84 c 9313.34
2013 1742.50 1416.00 1149.07 a 0.00 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 4307.57
Period of Record Statistics
MEAN 1510.86 1304.16 1204.29 881.88 624.10 342.40 179.62 248.38 470.34 799.98 1148.62 1450.63 10143.84
S.D. 132.95 135.38 128.64 94.29 70.38 58.66 54.53 62.47 68.90 68.91 116.49 123.27 500.04
SKEW 0.36 0.40 0.58 0.09 0.18 -0.20 -0.03 -0.12 0.05 0.40 0.34 0.04 0.11
MAX 1835.09 1635.00 1621.50 1097.00 788.50 493.50 310.50 375.21 638.50 1010.50 1399.50 1857.02 11329.59
MIN 1228.50 1052.00 987.00 661.50 483.50 189.50 50.50 91.00 301.00 642.00 914.50 1078.50 9160.00
NO YRS 82 81 81 80 79 78 78 80 79 77 78 80 66