LEADVILLE LAKE CO AP, COLORADO

Monthly Total Heating Degree Days

(054885)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200812
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
1976 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 420.57 a 506.69 b 622.00 1015.00 1248.50 1500.92 a 5313.67
1977 1609.50 1323.50 1459.00 966.50 759.50 406.50 324.00 369.93 a 533.00 872.50 1187.50 1420.32 a 11231.75
1978 1537.50 1371.48 a 1228.00 974.50 850.50 453.50 336.00 438.81 b 569.50 861.28 a 1219.50 1634.45 b 11475.02
1979 1713.94 e 1378.00 1358.50 0.00 z 0.00 z 410.50 f 0.00 z 0.00 z 0.00 z 0.00 z 865.00 m 531.00 s 4450.44
1980 0.00 z 0.00 z 0.00 z 747.50 l 552.00 j 0.00 z 0.00 z 202.00 p 0.00 z 412.00 p 392.50 r 0.00 z 0.00
1981 761.50 n 0.00 z 0.00 z 529.50 k 469.00 l 190.00 o 101.00 u 153.50 r 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 559.66 a 982.00 1269.31 a 1459.14 b 4270.10
1983 1397.67 b 1268.50 1289.82 c 1225.18 b 895.50 553.00 313.50 312.50 494.00 834.00 1189.00 1544.50 11317.17
1984 1597.50 1394.50 1332.50 1179.00 709.50 518.00 316.00 373.00 541.00 1071.00 1235.00 1442.50 11709.50
1985 1597.00 1425.50 1302.50 975.00 746.00 449.00 343.00 369.50 674.00 879.50 1261.00 1483.00 11505.00
1986 1326.50 1255.50 1178.00 1000.50 757.50 448.50 378.50 370.50 636.50 927.50 1193.50 1504.50 10977.50
1987 1517.00 1287.50 1358.50 961.50 725.50 445.50 351.50 407.00 585.50 787.00 1192.50 1560.50 11179.50
1988 1581.00 1330.00 1369.50 964.50 746.00 381.50 326.00 324.00 608.00 763.50 1237.50 1539.00 11170.50
1989 1518.50 1317.50 1121.50 923.00 700.00 516.00 293.00 418.50 550.50 875.00 1178.79 a 1516.00 10928.29
1990 1519.00 1270.50 1201.00 926.50 800.00 383.50 348.50 409.50 470.00 871.00 1150.50 1597.50 10947.50
1991 1551.50 1238.50 1335.50 1077.00 724.00 457.00 359.50 372.50 551.50 835.00 1268.00 1471.50 11241.50
1992 1489.50 1298.50 1205.50 860.50 664.00 504.00 411.50 439.50 546.00 791.00 1406.00 1522.00 11138.00
1993 1456.00 1306.00 1227.50 1040.50 744.00 493.50 355.50 399.50 597.00 915.50 1364.50 1497.50 11397.00
1994 1505.50 1321.00 1195.00 998.00 675.00 346.00 319.00 326.00 540.00 901.50 1255.50 1410.50 10793.00
1995 1506.00 1142.00 1221.50 1068.50 868.00 553.50 393.00 279.00 550.50 874.50 1074.00 1401.50 10932.00
1996 1472.50 a 1275.00 1304.50 992.50 624.00 443.00 171.00 l 340.50 611.50 918.00 1134.50 1441.50 10557.50
1997 1470.50 1352.50 1152.50 1140.50 735.00 449.50 331.50 365.50 463.00 644.50 i 1267.50 1522.50 10250.50
1998 1427.50 1336.00 1274.50 1083.00 671.50 502.50 238.50 0.00 z 427.50 839.50 1064.50 1342.00 10207.00
1999 1402.75 a 1196.00 1107.50 1062.50 789.98 a 466.80 e 263.50 b 324.97 b 572.59 a 803.86 b 989.50 1452.87 a 10432.81
2000 1381.57 a 1198.50 1222.43 a 839.50 565.75 c 382.50 209.00 f 284.00 473.89 c 817.22 b 1393.93 b 1435.96 c 9995.26
2001 1516.00 1226.30 a 1190.40 a 899.50 651.50 365.69 a 249.50 326.05 c 520.00 c 799.80 a 1113.75 b 1474.71 c 10333.20
2002 1463.00 1330.00 1320.50 793.50 700.50 338.50 207.00 321.50 530.00 926.50 1205.50 1471.50 10608.00
2003 1261.00 1340.37 a 1205.50 941.50 674.50 472.50 193.50 285.00 537.00 666.50 1182.00 1343.50 10102.87
2004 1439.00 1379.00 1061.50 916.00 670.50 456.00 321.50 405.00 558.00 825.50 1154.00 1402.50 10588.50
2005 1283.50 1242.89 a 1272.50 912.00 653.00 460.50 237.00 370.50 459.00 800.50 1126.50 1461.00 10278.89
2006 1417.50 1284.96 e 1245.50 838.50 630.50 353.50 260.50 349.50 0.00 z 902.50 1148.50 1386.50 9817.96
2007 1472.00 1214.50 1067.90 b 888.00 717.50 394.00 235.50 280.00 491.00 770.00 1031.50 1544.83 a 10106.73
2008 1621.30 a 1327.56 b 1080.50 g 1063.50 759.00 430.00 266.50 338.00 553.00 810.50 1063.50 1438.92 a 9671.77
2009 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2010 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2011 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2012 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 875.75 c 1042.00 1455.50 3373.25
2013 1556.50 1429.00 1297.50 64.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 53.50 z 4283.00
Period of Record Statistics
MEAN 1486.94 1302.04 1245.05 982.54 721.72 443.71 310.87 360.96 545.69 860.43 1188.64 1473.52 10927.01
S.D. 100.18 69.21 93.79 104.06 74.72 59.81 60.57 54.56 56.95 80.12 100.88 67.50 467.27
SKEW -0.24 -0.20 -0.03 0.42 0.42 -0.03 -0.16 0.52 0.01 0.37 0.19 0.18 -0.33
MAX 1713.94 1429.00 1459.00 1225.18 895.50 553.50 420.57 506.69 674.00 1071.00 1406.00 1634.45 11709.50
MIN 1261.00 1142.00 1061.50 793.50 565.75 338.50 193.50 279.00 427.50 666.50 989.50 1342.00 9999.00
NO YRS 30 30 29 28 28 28 27 28 29 30 31 31 22