MONTROSE #2, COLORADO

Monthly Total Heating Degree Days

(055722)

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
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 322.50 846.50 1287.50 2456.50
1896 1048.50 866.50 646.00 0.00 z 138.50 0.00 0.00 3.50 121.00 443.00 899.00 1174.00 5340.00
1897 1235.50 991.00 888.50 521.50 184.50 77.50 39.00 0.00 93.00 513.50 0.00 z 0.00 z 4544.00
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 1309.75 a 837.65 c 745.55 a 465.54 b 323.43 a 172.50 d 42.62 c 19.50 f 118.50 l 579.91 b 833.50 1152.50 6462.96
1905 1257.05 a 1046.37 a 496.50 i 592.50 b 322.50 j 153.00 e 48.29 e 48.50 203.00 592.00 835.00 1344.37 a 6120.08
1906 1218.62 b 854.00 791.50 571.50 384.00 238.20 e 31.50 38.48 b 228.33 c 535.50 828.10 a 1010.60 a 6730.34
1907 482.50 q 291.00 n 515.50 g 0.00 z 416.36 b 137.14 b 2.50 16.50 172.24 a 370.50 927.00 1161.98 a 3204.23
1908 1214.00 908.50 727.98 a 549.00 460.50 137.50 6.50 86.00 224.50 698.00 991.50 1212.50 7216.48
1909 1133.50 999.00 842.50 605.50 493.00 148.50 6.20 a 13.50 226.00 502.00 816.50 1575.50 7361.70
1910 1259.50 1015.50 644.28 a 512.00 371.00 72.00 34.50 54.50 223.50 612.52 b 792.00 793.50 j 5591.30
1911 1019.50 871.50 659.78 a 488.00 226.00 29.00 5.50 4.50 76.00 523.50 903.00 1296.00 6102.28
1912 1213.50 926.00 779.00 576.50 267.00 60.50 10.50 2.00 262.00 494.50 794.00 1377.50 6763.00
1913 1400.00 985.00 864.50 477.50 189.50 50.00 4.65 a 0.00 205.50 551.80 a 724.00 1362.45 a 6814.90
1914 1223.50 997.00 780.00 464.00 235.50 59.00 1.00 20.00 107.00 466.00 757.50 1302.50 6413.00
1915 1435.00 946.50 794.63 a 390.50 347.50 114.00 1.55 a 0.00 141.50 427.50 822.00 1134.00 6554.68
1916 1142.50 878.00 683.50 458.00 251.50 42.00 0.00 8.50 154.00 525.50 944.00 1274.00 6361.50
1917 1439.50 1007.00 972.50 601.00 436.50 75.00 0.00 14.00 139.50 496.00 737.00 991.00 6909.00
1918 1371.00 1020.00 675.50 620.00 264.00 13.97 a 0.00 3.00 160.00 415.00 951.00 1255.00 6748.47
1919 1498.85 a 1065.50 839.00 462.50 153.50 68.00 0.00 0.00 73.00 574.00 880.00 1328.50 6942.85
1920 1269.50 916.50 844.00 694.00 199.50 33.50 0.00 16.00 153.10 a 519.50 825.00 1258.50 6729.10
1921 1069.00 852.50 624.50 546.00 200.50 38.79 a 14.50 5.00 63.00 329.00 734.48 a 928.50 5405.78
1922 1259.50 943.50 850.00 604.50 234.50 24.00 0.00 5.50 72.50 469.50 843.00 1045.22 a 6351.72
1923 994.00 952.50 927.50 526.50 209.50 34.00 0.00 1.00 181.00 561.00 837.00 1233.00 6457.00
1924 1476.50 914.00 972.50 573.50 299.00 53.50 0.00 22.00 206.00 466.00 806.50 1367.50 7157.00
1925 1506.00 971.00 703.50 419.00 118.00 75.50 0.00 18.00 119.50 493.50 878.00 1121.00 6423.00
1926 1252.00 848.50 825.50 414.50 234.50 18.00 5.50 1.50 108.00 436.50 788.00 1234.50 6167.00
1927 1122.50 817.00 891.00 469.50 227.00 48.00 2.50 10.50 140.00 427.00 708.50 1277.00 6140.50
1928 1095.50 950.00 736.00 585.50 255.00 89.00 0.00 13.50 78.00 425.00 849.00 1313.50 6390.00
1929 1352.50 1189.50 847.00 579.00 277.50 32.00 0.50 2.00 209.50 534.50 1048.00 1169.50 7241.50
1930 1494.00 912.50 837.00 364.00 325.00 31.50 1.00 1.50 124.50 493.00 948.00 1390.50 6922.50
1931 1279.50 813.50 867.00 468.00 295.53 a 10.50 1.50 0.00 76.55 a 393.00 946.61 b 1362.50 6514.19
1932 1401.00 871.50 858.00 502.00 191.50 79.00 0.00 18.00 103.00 499.00 826.00 1356.00 6705.00
1933 1350.50 1279.00 763.12 a 643.00 363.50 4.00 0.00 4.00 37.50 314.50 787.00 987.50 6533.62
1934 1040.00 721.00 559.50 323.50 78.50 37.50 0.00 0.00 137.00 367.00 778.50 1077.00 5119.50
1935 1056.00 871.00 775.50 483.50 292.00 29.00 0.00 0.00 96.50 445.00 832.00 1131.50 6012.00
1936 1181.00 922.50 730.50 425.50 155.50 52.00 7.50 4.50 158.00 514.50 942.00 1196.00 6289.50
1937 1579.50 1030.00 847.00 559.00 227.00 99.50 20.50 0.50 109.50 463.50 788.00 1156.50 6880.50
1938 1210.50 941.50 839.00 535.00 348.00 60.50 0.50 0.00 70.50 426.50 1027.00 1166.00 6625.00
1939 1222.00 1261.50 780.50 417.00 160.00 49.14 a 0.00 0.00 67.50 482.00 764.00 1056.00 6259.64
1940 1287.50 939.00 698.50 488.50 117.50 29.00 0.00 14.47 a 91.50 434.00 906.00 1137.00 6142.97
1941 1188.50 864.50 751.50 588.50 195.00 89.00 0.00 2.50 181.50 478.00 815.00 1055.50 6209.50
1942 1197.50 1081.00 921.00 455.50 279.00 25.86 a 0.00 a 0.00 100.00 399.50 725.50 1004.50 6189.36
1943 1057.62 a 823.50 790.00 274.66 a 264.00 86.00 0.00 7.00 54.50 374.58 a 810.50 1058.13 a 5600.49
1944 1254.00 927.50 880.50 621.00 241.50 66.50 0.00 4.50 29.50 335.00 781.50 1073.00 6214.50
1945 1090.00 819.78 a 809.62 a 646.50 178.00 112.50 0.50 1.55 a 152.50 411.00 822.50 1281.50 6325.94
1946 1255.50 930.50 710.50 352.50 342.72 d 32.00 0.00 1.50 121.50 550.00 866.50 996.50 6159.72
1947 1252.00 838.00 770.50 511.50 163.50 99.50 0.00 5.50 75.52 a 366.00 932.00 1128.00 6142.02
1948 1273.00 1065.00 966.00 461.00 177.00 55.50 0.00 a 6.50 61.00 426.00 995.50 1037.00 6523.50
1949 1364.50 1112.00 752.50 435.00 252.50 87.50 0.00 4.00 76.50 525.00 708.00 1099.50 6417.00
1950 1167.50 893.50 838.00 434.50 326.50 54.50 6.50 6.50 139.00 225.50 723.50 974.50 5790.00
1951 1121.00 944.00 815.50 496.50 250.00 98.50 0.00 13.50 83.50 435.50 904.00 1242.50 6404.50
1952 1106.00 1018.50 933.50 480.00 206.15 a 21.50 0.00 3.50 91.00 361.00 984.00 1238.50 6443.65
1953 1050.50 966.50 728.00 590.00 408.00 39.00 0.00 12.00 52.50 413.50 748.00 1225.50 6233.50
1954 1022.50 730.00 824.00 329.50 145.50 68.50 0.00 4.00 108.00 373.00 725.00 1196.50 5526.50
1955 1225.50 1165.00 840.50 577.00 277.50 77.00 1.50 0.00 80.00 385.50 875.00 957.00 6461.50
1956 899.00 1048.50 684.00 f 482.50 151.00 0.00 a 0.00 10.50 36.00 391.50 1031.00 1265.50 5315.50
1957 1127.50 833.00 721.00 531.50 368.00 56.00 2.00 10.00 124.00 411.00 906.00 1025.00 6115.00
1958 1141.50 769.50 825.00 544.00 142.00 1.00 0.00 0.00 111.00 405.50 803.00 972.00 5714.50
1959 1120.00 900.00 849.50 480.00 188.50 19.00 0.00 7.50 169.50 512.00 855.50 1125.00 6226.50
1960 1332.00 1190.00 826.50 496.00 271.50 27.50 0.00 9.00 59.50 456.50 769.00 1232.00 6669.50
1961 1239.00 896.50 791.50 542.50 212.50 23.00 4.00 5.50 268.50 490.50 880.50 1302.50 6656.50
1962 1326.00 792.50 942.00 404.50 261.50 74.00 3.50 11.00 117.50 393.00 693.50 1078.00 6097.00
1963 1539.50 814.50 837.00 526.50 145.18 a 70.50 2.00 9.00 45.50 271.00 740.00 1169.00 6169.68
1964 1294.00 1202.00 1004.00 578.50 271.00 92.00 0.00 41.50 158.50 378.50 889.00 1096.50 7005.50
1965 1095.00 968.50 952.00 527.00 342.00 97.00 2.00 18.00 244.50 414.00 669.50 1021.00 6350.50
1966 1258.50 1055.00 782.50 527.00 199.00 33.50 0.00 9.00 88.00 491.50 707.50 1132.00 6283.50
1967 1217.50 907.00 653.50 534.50 344.50 112.50 2.50 1.00 159.50 447.00 810.00 1366.50 6556.00
1968 1385.00 920.00 787.00 676.00 344.50 62.00 12.50 79.50 233.50 502.50 971.00 1307.50 7281.00
1969 1106.00 1011.00 994.50 489.50 162.50 159.00 0.00 10.00 119.00 705.00 924.00 1117.50 6798.00
1970 1239.00 831.00 919.50 724.50 245.50 120.50 3.00 10.00 241.50 660.00 818.00 1174.50 6987.00
1971 1233.00 971.00 816.50 524.50 330.50 53.00 0.00 0.00 234.00 509.00 901.00 1245.50 6818.00
1972 1171.00 862.00 596.00 430.00 248.50 10.50 0.00 12.50 96.50 426.00 958.00 1286.00 6097.00
1973 1465.50 1016.50 804.50 621.50 274.00 122.00 2.00 3.00 147.00 401.50 741.50 1132.00 6731.00
1974 1397.50 1198.00 664.50 614.50 156.50 64.50 0.00 9.50 131.00 358.00 821.00 1227.00 6642.00
1975 1348.00 973.00 817.50 617.50 357.00 107.00 0.00 5.00 125.00 461.50 889.00 1106.00 6806.50
1976 1283.50 828.00 865.50 487.50 241.00 66.50 4.00 2.50 133.00 525.50 799.00 1160.00 6396.00
1977 1269.00 872.50 890.00 417.00 242.00 0.00 0.00 10.00 77.00 387.00 770.50 992.50 5927.50
1978 1079.00 910.50 629.00 421.00 301.00 31.00 0.00 11.50 139.50 373.50 760.50 1417.50 6074.00
1979 1455.50 1061.50 790.50 498.50 257.50 88.50 3.50 30.00 45.00 343.00 987.00 1145.00 6705.50
1980 1070.00 835.00 831.50 540.50 312.00 16.50 0.00 20.00 87.00 474.00 788.00 870.00 5844.50
1981 956.00 859.00 761.50 335.50 251.00 46.00 0.00 8.50 41.00 482.00 722.00 1081.00 5543.50
1982 1201.50 982.50 740.00 525.50 267.00 49.00 4.50 2.00 115.50 563.00 855.50 1112.50 6418.50
1983 1102.00 833.00 763.50 625.50 354.00 94.50 0.50 0.00 75.00 395.50 840.00 1160.00 6243.50
1984 1339.50 1056.50 853.50 598.00 156.00 87.50 0.00 0.00 105.00 598.50 797.00 1071.00 6662.50
1985 1168.00 1098.00 749.00 444.50 184.50 28.45 a 0.50 0.00 218.00 456.50 830.17 a 1113.50 6291.12
1986 1040.00 774.50 584.00 457.50 241.00 24.50 1.50 6.50 190.50 542.50 814.50 1088.50 5765.50
1987 1197.50 880.50 862.50 431.50 236.00 14.00 6.00 28.93 a 134.00 356.00 853.00 1166.00 6165.93
1988 1342.82 a 1007.00 823.00 480.00 236.00 26.00 0.00 0.00 174.50 300.00 801.50 1144.50 6335.32
1989 1347.00 978.50 608.00 354.00 186.00 68.00 0.00 10.50 115.50 449.50 774.00 1164.50 6055.50
1990 1202.50 901.50 661.50 414.50 288.00 28.00 0.00 3.50 84.00 488.50 813.00 1392.50 6277.50
1991 1468.50 984.00 796.50 579.50 285.00 52.00 0.50 0.00 139.50 425.50 912.50 1337.00 6980.50
1992 1392.00 910.00 690.50 340.50 183.50 51.00 17.00 43.50 90.00 345.50 1005.00 1262.50 6331.00
1993 1053.50 873.50 702.00 577.50 246.50 104.00 16.00 15.50 168.50 516.00 971.50 1162.50 6407.00
1994 1128.00 990.00 679.50 495.50 213.00 9.50 4.50 3.00 112.00 490.50 899.00 1078.50 6103.00
1995 1074.50 688.00 710.00 595.50 388.00 120.50 35.50 0.00 150.50 506.00 723.00 1000.50 5992.00
1996 1200.50 850.50 751.00 514.50 148.50 34.50 0.00 0.00 214.00 503.50 810.00 1115.00 6142.00
1997 1108.00 946.00 681.00 632.50 230.00 48.00 6.50 16.00 105.50 490.50 845.50 1227.50 6337.00
1998 1036.50 852.00 806.00 598.50 222.50 101.00 0.00 0.00 33.50 439.50 774.50 1245.17 a 6109.17
1999 1082.50 814.50 565.50 589.00 294.50 a 43.00 0.00 0.50 162.12 d 331.50 h 704.00 1156.62 b 5412.24
2000 1039.50 806.00 750.00 402.50 174.93 c 26.11 c 0.00 c 0.00 b 115.96 d 410.48 b 1026.96 b 713.50 l 4752.45
2001 1196.48 e 871.92 c 715.00 446.00 199.00 47.50 4.50 8.50 68.00 405.50 718.00 1124.50 5804.90
2002 1173.50 1039.50 861.00 336.50 221.50 24.00 0.00 9.00 116.00 528.00 868.50 1080.50 6258.00
2003 979.00 903.00 740.00 434.50 230.00 16.50 0.00 0.00 138.50 311.00 824.00 1097.00 5673.50
2004 1231.50 1027.50 553.50 439.00 171.50 24.00 3.00 13.00 177.00 438.50 845.00 1125.50 6049.00
2005 885.50 823.00 778.00 489.50 220.50 91.50 0.00 1.00 103.00 396.50 737.00 1118.00 5643.50
2006 1057.00 888.00 761.00 383.00 152.50 13.00 4.50 13.00 236.00 528.50 758.00 1196.00 5990.50
2007 1281.50 829.00 682.00 452.00 234.00 53.50 0.00 5.50 116.50 481.50 714.00 1215.00 6064.50
2008 1291.50 1011.00 800.00 591.00 320.50 72.50 0.00 3.50 f 105.00 440.00 728.50 1147.00 6507.00
2009 1141.50 799.50 705.00 536.50 0.00 z 71.50 0.00 8.00 101.00 545.50 730.50 1310.50 5949.50
2010 1170.00 1015.00 791.50 484.50 352.50 36.50 0.00 0.50 76.00 389.50 847.00 907.00 6070.00
2011 1258.50 1025.00 678.50 500.50 370.50 28.00 0.00 0.00 76.50 460.00 790.50 1197.50 6385.50
2012 1107.50 887.50 632.50 363.50 133.00 7.50 0.00 0.50 85.50 392.00 674.50 1122.50 5406.50
2013 1411.00 971.50 727.00 23.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 47.00 z 3109.50
Period of Record Statistics
MEAN 1218.92 938.34 779.80 503.81 251.55 59.80 3.99 9.69 126.85 454.60 832.90 1169.35 6344.86
S.D. 144.31 112.49 98.56 88.94 81.09 42.00 9.21 14.53 56.86 83.78 88.65 124.69 434.30
SKEW 0.22 0.66 -0.07 -0.12 0.52 1.17 3.21 3.08 0.57 0.26 0.43 0.24 -0.08
MAX 1579.50 1279.00 1004.00 724.50 493.00 238.20 48.29 86.00 268.50 705.00 1048.00 1575.50 7361.70
MIN 885.50 688.00 553.50 274.66 78.50 0.00 0.00 0.00 29.50 225.50 669.50 870.00 5119.50
NO YRS 111 111 109 109 109 111 111 109 110 111 111 109 100