BLANCA 4 NW, COLORADO

Monthly Total Heating Degree Days

(050776)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201003
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
1909 893.00 g 1119.00 1064.00 815.50 595.50 169.66 a 23.00 97.50 306.00 615.19 b 927.00 1650.00 7382.34
1910 1280.50 1210.50 816.50 686.50 449.00 158.28 a 60.50 115.50 241.00 672.00 886.50 1217.86 c 7794.63
1911 1158.22 b 1100.00 908.50 676.00 454.00 218.00 105.92 a 168.50 13.00 z 0.00 z 0.00 z 0.00 z 4789.14
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 771.50 1012.00 1502.00 3285.50
1913 1555.00 1173.31 b 1074.00 739.66 a 435.00 232.50 94.55 a 83.00 403.00 729.50 893.00 1628.53 a 9041.05
1914 1283.50 999.50 860.50 0.00 z 272.50 j 182.50 79.50 137.00 267.50 662.00 979.50 1496.00 6947.50
1915 1083.00 i 1102.89 a 1053.50 633.50 560.50 220.50 101.50 151.00 341.00 669.00 1045.50 1318.50 7197.39
1916 1257.00 1041.50 873.00 703.00 501.50 220.50 50.00 113.00 323.50 673.50 1030.00 1444.00 8230.50
1917 1452.02 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1452.02
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 640.96 d 260.50 m 228.10 a 65.50 162.00 305.00 617.93 a 1141.00 1401.00 4561.50
1926 1704.00 1059.00 1001.50 667.50 493.00 190.50 115.50 108.50 246.11 c 592.88 c 941.50 1319.50 8439.49
1927 1154.75 a 943.00 999.23 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 3096.98
1928 343.50 w 1124.50 876.78 a 701.00 448.00 182.00 89.00 162.50 307.00 551.00 1217.50 1516.00 7175.28
1929 1588.50 1373.50 1180.50 0.00 z 0.00 z 309.50 150.00 0.00 z 0.00 z 0.00 z 1421.50 1448.98 b 7472.48
1930 1613.55 a 1101.50 0.00 z 0.00 z 613.50 0.00 z 180.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3509.05
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1939 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1940 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1941 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1942 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1943 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1944 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1945 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1946 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1947 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1949 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1950 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1951 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1952 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1953 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1954 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1955 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1956 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1957 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1958 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1959 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1960 0.00 z 0.00 z 0.00 z 308.50 o 467.00 125.50 48.00 38.00 257.00 659.00 953.00 1407.00 3954.50
1961 1532.50 1088.50 992.00 727.00 401.00 123.00 47.50 90.00 359.48 a 665.50 1082.50 1511.00 8619.98
1962 1468.00 986.50 1142.00 620.00 497.50 215.00 85.50 110.00 270.00 551.00 898.50 1156.00 8000.00
1963 1552.00 1090.00 1010.50 666.50 340.50 173.50 4.50 70.50 194.48 a 473.50 966.50 1373.50 7915.98
1964 1488.50 1339.50 1207.50 785.00 425.50 189.00 14.98 a 129.00 294.00 592.00 1101.00 1590.00 9155.98
1965 1394.50 1189.00 1139.00 730.00 473.50 203.50 24.00 136.00 363.00 586.00 866.00 1265.00 8369.50
1966 1564.98 a 1347.00 950.50 642.50 383.00 199.00 9.50 93.00 281.00 632.50 905.50 1322.50 8330.98
1967 1348.50 1128.50 837.00 699.31 a 514.50 233.50 29.45 a 171.50 331.50 612.50 923.50 1486.00 8315.76
1968 1592.00 1145.50 1008.00 810.00 489.00 136.50 74.92 a 143.50 325.50 587.50 1025.00 1395.50 8732.92
1969 1204.50 1104.00 1123.50 622.00 379.00 243.50 10.50 31.50 297.50 764.50 1024.00 1356.77 a 8161.27
1970 1401.00 1007.00 1077.00 846.00 447.00 253.50 21.00 54.50 342.50 793.50 944.00 1276.50 8463.50
1971 1367.50 1117.00 1014.00 756.50 560.50 197.00 80.00 74.00 355.50 704.50 1056.00 1412.50 8695.00
1972 1392.50 1055.50 837.50 640.00 442.50 142.50 54.50 117.00 312.00 601.50 1292.00 1564.00 8451.50
1973 1696.50 1308.50 1045.00 844.00 486.00 212.00 115.00 102.41 c 375.52 a 628.50 922.00 1398.00 9133.43
1974 1624.50 1417.50 910.07 c 829.00 347.50 166.00 87.00 203.00 370.00 641.04 c 1102.50 b 1613.50 9311.61
1975 1760.00 1219.00 1066.73 c 860.50 558.00 240.52 a 79.50 159.00 400.80 e 0.00 z 787.50 m 1027.50 i 6344.05
1976 1562.50 1080.00 1073.50 750.00 b 435.50 185.50 28.86 b 133.00 295.50 769.00 1065.50 1471.47 a 8850.33
1977 1555.50 1146.00 1082.50 631.00 405.67 b 93.00 30.48 a 49.50 269.50 626.50 968.50 1205.50 8063.66
1978 1253.00 1082.00 854.50 644.50 529.50 125.50 34.00 101.50 260.19 d 534.00 886.50 1565.50 7870.69
1979 1694.50 1379.00 815.50 h 661.50 455.00 206.79 b 55.50 156.50 246.50 602.00 1256.50 1356.00 8069.79
1980 1277.50 1022.00 1048.46 c 771.50 508.50 101.38 a 8.78 a 80.50 225.50 693.00 983.04 b 1048.50 7768.66
1981 1207.00 1021.50 705.00 h 496.55 a 468.50 92.22 c 18.50 77.50 i 0.00 z 645.83 a 623.00 h 541.50 p 3950.11
1982 1367.50 1136.50 953.50 705.00 486.00 204.00 59.50 57.00 289.50 737.00 983.00 1360.50 8339.00
1983 1343.00 1036.00 944.00 837.50 564.50 253.50 40.50 38.00 210.50 625.50 1060.00 1428.00 8381.00
1984 1790.00 1448.00 1129.50 803.50 326.00 202.50 9.50 66.00 248.00 782.00 1015.50 1248.50 9069.00
1985 1462.00 1158.00 932.50 617.00 427.00 80.00 m 52.00 52.50 401.00 630.50 1000.50 1359.50 8092.50
1986 1177.00 983.77 b 847.33 a 629.44 c 466.50 154.00 87.00 85.50 349.14 a 717.50 987.50 1354.00 7838.68
1987 1443.50 1081.50 1023.50 668.00 461.00 97.00 41.00 127.50 335.00 565.00 1010.89 b 1477.50 8331.39
1988 1721.00 1246.50 1053.00 185.50 v 482.00 122.50 40.50 67.50 361.50 565.00 1043.50 1395.50 8098.50
1989 1462.00 1156.50 818.00 619.66 a 346.00 187.00 25.50 93.00 239.50 659.50 945.50 1353.50 7905.66
1990 1454.50 1104.50 895.50 620.50 490.00 103.00 68.50 137.00 206.00 658.00 982.50 1520.50 8240.50
1991 1621.00 1068.50 982.50 745.50 439.50 188.00 60.50 73.50 285.00 586.50 1234.00 1783.00 9067.50
1992 1870.50 1420.50 1042.50 578.00 368.50 219.00 100.50 159.00 270.00 554.00 1230.50 1645.00 9458.00
1993 1488.00 1174.00 956.00 721.00 443.50 179.50 45.50 129.50 345.00 729.50 1134.00 1373.50 8719.00
1994 1328.00 1176.50 918.50 688.50 412.00 77.50 24.00 22.00 k 125.00 n 616.50 1093.00 1257.00 7591.50
1995 1260.00 836.00 893.50 769.00 548.00 219.00 116.00 12.50 304.50 654.00 921.00 1204.00 7737.50
1996 1346.00 977.50 992.50 695.50 270.00 99.50 21.00 57.00 328.00 689.00 953.00 1318.50 7747.50
1997 1408.50 1084.00 859.00 794.50 431.50 153.00 45.00 66.50 191.00 651.50 1063.50 1628.00 8376.00
1998 1430.00 1118.00 967.00 812.00 405.50 206.00 16.50 60.00 178.50 626.50 903.50 1211.00 7934.50
1999 1164.50 977.50 814.50 749.00 501.50 207.00 23.77 a 77.50 319.00 635.50 880.00 1323.00 7672.77
2000 1188.69 b 1003.50 913.00 583.50 324.00 86.00 26.50 33.00 232.50 620.00 1172.50 1265.00 7448.19
2001 1430.00 1046.00 916.00 609.00 377.50 111.50 27.00 112.00 241.00 591.00 930.00 1361.50 7752.50
2002 1376.00 1143.50 975.50 480.00 348.50 43.00 10.00 45.00 277.00 662.50 964.50 1339.00 7664.50
2003 1135.50 1079.00 929.00 628.50 371.50 195.50 9.00 51.50 312.50 550.00 1043.57 b 1355.50 7661.07
2004 1421.50 1403.50 790.00 696.00 382.00 332.50 103.50 175.50 0.00 z 0.00 z 0.00 z 0.00 z 5304.50
2005 0.00 z 0.00 z 440.00 q 516.50 f 384.00 164.00 8.50 86.00 199.50 559.50 917.50 1279.00 3598.00
2006 1307.00 1061.50 901.50 598.00 323.50 62.50 34.00 65.50 370.00 701.00 972.00 1340.75 a 7737.25
2007 1608.00 1069.00 845.55 b 641.50 0.00 z 150.00 29.50 h 26.00 h 154.50 g 608.50 745.00 f 1498.50 6421.05
2008 1121.00 i 1235.00 1006.50 707.50 463.00 151.80 e 13.50 70.00 265.50 578.50 893.50 1253.50 6638.30
2009 1320.08 a 996.50 821.00 703.00 289.00 182.50 16.00 50.50 291.00 717.00 946.00 1484.50 7817.08
2010 1369.00 1209.04 c 444.00 r 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2578.04
Period of Record Statistics
MEAN 1435.82 1132.00 969.27 696.39 443.05 175.35 52.50 98.09 294.86 641.19 1017.51 1398.88 8293.37
S.D. 177.24 129.68 103.40 85.51 76.25 57.86 38.75 44.50 57.09 68.11 116.56 140.46 522.84
SKEW 0.30 0.73 0.24 -0.05 -0.04 -0.01 0.99 0.29 -0.06 0.27 1.26 0.27 0.49
MAX 1870.50 1448.00 1207.50 860.50 613.50 332.50 180.50 203.00 403.00 793.50 1421.50 1783.00 9458.00
MIN 1135.50 836.00 790.00 480.00 270.00 43.00 4.50 12.50 178.50 473.50 866.00 1048.50 7448.19
NO YRS 58 61 57 56 58 60 61 57 55 58 57 58 43