BONNY LAKE, COLORADO

Monthly Total Heating Degree Days

(050834)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1949 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 39.50 0.00 6.50 81.50 423.50 516.50 1005.90 b 2073.40
1950 1204.57 c 787.00 895.00 527.59 a 314.65 a 40.86 a 8.00 18.50 124.66 a 154.40 e 795.52 a 970.82 a 5841.56
1951 1145.45 a 916.22 a 951.70 a 620.50 192.00 116.00 26.50 10.00 145.00 451.00 879.00 1169.00 6622.37
1952 1084.00 918.00 1012.50 484.00 210.00 2.50 10.00 6.50 60.00 393.00 893.00 1225.00 6298.50
1953 903.50 909.50 671.50 633.50 297.00 15.00 0.00 2.00 36.00 279.50 736.00 1146.50 5630.00
1954 1106.50 422.50 i 921.50 331.50 315.50 41.00 1.00 0.00 29.00 429.00 623.50 990.00 4788.50
1955 1174.00 1071.00 885.00 399.50 150.50 96.00 0.00 0.00 112.00 280.50 905.50 1095.00 6169.00
1956 1067.50 1112.00 809.00 552.50 164.00 3.50 1.50 18.00 43.50 242.50 859.50 937.00 5810.50
1957 1351.50 803.50 893.00 633.50 296.50 42.50 0.00 d 0.00 122.50 422.50 836.00 874.00 6275.50
1958 1052.50 909.50 1158.00 570.50 129.00 39.50 0.00 2.50 74.50 368.50 756.50 1003.50 6064.50
1959 1192.50 1026.50 872.50 551.50 210.00 22.00 6.00 4.50 160.50 533.50 892.50 936.50 6408.50
1960 1280.50 1324.00 1061.00 403.50 243.50 46.50 3.00 8.00 105.00 341.50 736.00 1092.50 6645.00
1961 1109.00 855.00 823.00 609.00 310.00 49.00 1.00 0.00 a 227.50 417.50 913.50 1216.00 6530.50
1962 1333.00 868.50 928.00 424.00 108.00 58.00 0.00 0.50 110.00 321.50 698.50 980.50 5830.50
1963 1494.50 784.00 787.00 370.50 143.50 19.00 0.00 0.50 45.50 167.50 695.00 1236.00 5743.00
1964 1027.00 1061.50 990.50 557.00 214.50 67.50 0.00 30.50 135.50 383.50 789.50 1090.00 6347.00
1965 991.50 1062.50 1181.00 363.50 163.50 21.50 0.00 1.50 323.00 306.50 632.00 968.00 6014.50
1966 1333.00 1110.00 732.50 559.00 170.50 44.00 0.00 25.50 80.50 441.50 763.27 d 1151.00 6410.77
1967 1011.00 890.50 706.50 455.50 380.50 69.50 4.50 10.00 122.00 371.50 811.00 1199.50 6032.00
1968 1147.50 946.50 761.50 596.50 353.00 27.00 0.50 32.50 98.00 357.00 825.00 a 1248.00 6393.00
1969 1125.50 914.00 1051.50 393.50 174.00 114.00 0.00 0.00 33.00 639.00 767.50 984.00 6196.00
1970 1142.50 806.50 984.50 579.00 159.50 87.00 1.00 2.50 182.50 540.50 822.00 1002.00 6309.50
1971 1121.00 993.50 828.00 496.50 307.00 13.00 15.00 0.00 220.00 412.50 797.00 1034.00 6237.50
1972 1196.50 874.50 617.50 456.50 232.50 14.00 24.50 16.00 111.50 456.06 e 777.50 g 1360.50 5360.06
1973 1189.00 913.00 766.00 648.50 276.50 51.00 16.00 0.00 176.50 353.00 799.00 1094.50 6283.00
1974 1352.00 852.00 756.50 489.50 141.00 49.00 0.00 18.50 214.00 368.50 809.50 1138.50 6189.00
1975 1160.50 1034.50 934.00 289.00 f 252.00 61.00 0.00 7.00 191.00 404.50 612.50 i 1045.50 5090.00
1976 1173.50 770.50 882.50 441.50 306.79 b 28.00 0.00 b 8.50 125.50 560.00 872.00 1018.50 6187.29
1977 1400.50 784.00 860.52 b 434.00 125.00 1.50 1.55 a 8.00 43.00 363.50 745.00 1007.50 5774.07
1978 1397.00 1201.50 472.00 p 201.50 r 166.00 h 58.50 0.00 19.00 0.00 t 399.68 c 401.00 o 578.00 q 3075.68
1979 0.00 z 0.00 z 0.00 z 218.50 l 212.50 l 32.00 j 0.00 h 31.00 d 68.40 e 313.50 969.11 b 442.00 o 1382.01
1980 1265.12 b 964.50 969.00 608.50 264.00 19.50 0.00 a 2.50 74.00 438.98 c 557.00 f 867.47 b 5473.57
1981 630.00 j 911.00 803.50 308.00 318.50 22.50 3.00 12.00 45.50 409.00 671.50 980.50 4485.00
1982 1223.00 1003.50 0.00 z 547.00 234.50 98.50 1.00 13.50 132.50 465.00 883.97 a 1092.50 5694.97
1983 1108.00 856.50 867.00 676.00 359.50 108.00 0.00 0.00 71.50 392.00 809.50 1576.50 6824.50
1984 1278.50 957.00 a 861.50 672.50 205.50 32.50 j 0.00 0.00 197.50 242.00 l 771.00 1158.00 6101.50
1985 1282.50 1117.50 747.50 433.00 179.50 94.50 0.00 0.00 w 40.00 w 529.07 a 652.50 k 693.50 n 4383.57
1986 593.00 j 615.00 j 413.50 k 225.00 j 121.00 i 10.50 l 0.00 u 6.00 n 36.00 m 252.50 j 438.00 n 429.50 t 0.00
1987 614.50 l 759.11 a 538.50 m 336.00 j 79.00 m 16.00 n 0.00 u 5.00 u 69.00 o 210.50 n 363.00 o 281.00 v 759.11
1988 764.00 n 742.50 i 0.00 z 511.07 b 140.00 l 4.50 r 0.00 q 0.00 o 80.50 k 205.50 n 191.00 u 195.50 y 511.07
1989 631.00 k 763.50 k 465.00 l 299.50 m 63.00 x 16.50 q 0.00 k 0.00 w 121.00 i 270.00 m 0.00 z 319.00 v 0.00
1990 970.00 931.50 718.00 422.50 308.00 8.00 14.50 4.50 77.50 413.00 703.50 1249.50 5820.50
1991 1216.50 707.00 731.50 470.00 171.50 6.00 10.00 8.50 104.00 418.00 880.00 991.00 5714.00
1992 1104.50 744.00 648.00 394.00 174.50 53.50 12.00 39.50 76.00 384.00 905.50 1266.50 5802.00
1993 1302.00 a 1135.50 780.50 539.00 213.50 65.50 0.00 25.00 200.00 457.50 577.00 k 982.50 5701.00
1994 1065.00 1092.00 680.00 505.00 121.00 3.00 4.00 1.50 89.50 374.00 809.50 927.50 5672.00
1995 1025.00 768.50 811.00 609.50 418.00 70.00 18.00 12.50 148.00 478.50 709.50 1012.50 6081.00
1996 0.00 z 0.00 z 0.00 z 0.00 z 236.50 16.50 8.00 1.50 162.00 410.00 893.50 1079.00 2807.00
1997 1185.50 953.00 702.00 658.00 243.00 19.50 3.50 15.50 89.00 445.50 843.50 1103.00 6261.00
1998 1061.00 810.50 842.00 544.50 139.00 86.00 1.00 1.00 34.00 382.00 689.50 1088.50 5679.00
1999 997.00 704.00 710.00 535.50 212.00 38.50 0.00 6.50 175.00 386.00 569.50 934.50 5268.50
2000 1024.00 753.50 718.50 420.00 153.50 46.50 1.50 0.00 122.00 368.00 1006.00 1198.00 5811.50
2001 1076.00 1020.00 798.00 412.00 187.00 40.80 e 0.00 1.00 85.00 385.50 661.00 980.50 5646.80
2002 1045.50 892.00 970.50 396.50 239.50 5.50 0.00 3.00 99.00 556.00 756.00 940.00 5903.50
2003 968.00 1024.50 715.50 375.00 216.00 38.00 0.00 3.00 105.00 265.50 807.00 986.50 5504.00
2004 1050.50 961.00 590.50 439.00 147.50 40.00 i 22.00 k 33.50 94.00 415.50 827.50 998.00 5557.00
2005 1076.50 793.00 733.50 472.50 229.00 37.50 4.50 5.00 0.00 z 402.00 630.00 1092.00 5475.50
2006 836.00 945.00 786.00 365.50 168.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3100.50
Period of Record Statistics
MEAN 1148.54 927.53 834.81 497.93 225.09 44.30 3.94 9.18 115.65 397.53 786.51 1074.48 6058.72
S.D. 136.63 134.67 132.49 97.81 74.59 31.23 6.53 10.51 60.93 89.90 102.63 133.04 349.42
SKEW 0.30 0.53 0.57 0.09 0.57 0.65 1.93 1.26 0.95 -0.17 -0.39 1.26 0.03
MAX 1494.50 1324.00 1181.00 676.00 418.00 116.00 26.50 39.50 323.00 639.00 1006.00 1576.50 6824.50
MIN 836.00 704.00 590.50 308.00 108.00 1.50 0.00 0.00 29.00 154.40 516.50 867.47 5268.50
NO YRS 50 51 49 50 51 50 51 52 50 52 47 50 38