WENATCHEE FAA AP, WASHINGTON

Monthly Total Heating Degree Days

(459082)

Base Temperature = 65 F

File last updated on Jul 25, 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
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 404.00 p 1029.00 1029.00
1960 1306.00 919.00 709.50 433.00 281.00 51.00 0.00 50.50 72.00 368.00 823.00 1180.00 6193.00
1961 1070.00 729.00 679.00 418.50 217.00 27.00 0.00 0.00 127.50 483.50 960.50 1125.50 5837.50
1962 1209.00 848.50 776.00 339.00 288.50 67.00 24.00 5.50 83.50 407.65 a 730.00 945.50 5724.15
1963 1249.50 764.50 618.00 493.00 203.00 53.00 11.00 0.50 35.00 347.00 774.00 1142.50 5691.00
1964 1087.50 897.00 697.00 474.50 247.00 58.50 5.00 40.00 118.00 406.50 842.50 1276.50 6150.00
1965 1127.50 797.50 717.50 361.00 220.50 28.50 12.50 19.00 112.00 325.00 731.00 1107.00 5559.00
1966 1206.00 838.00 705.00 369.50 171.00 87.00 23.50 10.00 29.00 438.00 717.00 922.50 5516.50
1967 907.50 681.50 713.00 552.50 204.00 19.50 0.50 0.00 23.50 434.50 770.00 1126.50 5433.00
1968 1140.00 799.00 595.00 473.50 184.00 52.50 0.00 55.00 89.50 549.50 798.00 1252.00 5988.00
1969 1567.50 1107.00 741.00 443.50 109.00 20.50 3.50 12.50 127.50 497.50 785.50 1076.50 6491.50
1970 1227.00 812.50 683.00 516.00 168.50 37.50 0.00 0.00 166.00 470.00 855.50 1249.50 6185.50
1971 1148.00 804.00 842.50 483.50 163.00 98.50 30.50 5.00 186.50 479.50 794.00 1309.50 6344.50
1972 1284.50 985.50 623.00 540.50 158.50 54.00 15.50 4.00 224.00 432.00 763.50 1226.00 6311.00
1973 1248.00 853.00 589.00 364.50 205.00 86.00 3.50 16.00 114.50 461.00 951.00 972.50 5864.00
1974 1192.00 757.50 714.50 428.00 285.50 60.00 13.00 0.00 50.00 401.50 740.50 968.00 5610.50
1975 1173.00 997.50 809.00 514.00 217.00 57.50 0.00 36.50 48.00 464.00 844.00 1006.50 6167.00
1976 1111.00 861.00 781.00 445.00 219.00 127.50 14.50 23.00 32.50 447.50 780.50 1044.50 5887.00
1977 1272.50 749.00 662.50 306.00 298.50 32.50 17.00 21.00 182.50 454.00 873.50 1083.50 5952.50
1978 1092.00 841.00 605.00 452.00 239.00 25.50 2.50 18.50 137.00 396.50 964.00 1235.00 6008.00
1979 1485.00 991.00 619.00 402.00 120.50 48.50 16.50 0.00 22.00 305.50 938.00 948.50 5896.50
1980 1413.00 971.50 707.50 330.50 165.00 92.50 14.50 26.50 88.50 422.00 791.00 1059.00 6081.50
1981 886.00 826.50 588.50 473.50 254.50 147.00 31.00 1.50 154.50 504.00 736.00 1129.50 5732.50
1982 1215.50 875.50 680.50 517.00 227.50 41.00 30.50 7.50 142.50 510.50 964.50 1196.50 6409.00
1983 955.50 799.00 614.50 451.50 186.00 75.00 27.00 5.00 197.50 459.50 787.50 1454.50 6012.50
1984 1075.00 858.50 615.00 514.00 353.50 118.50 2.00 5.50 199.00 576.50 889.00 1477.50 6684.00
1985 0.00 z 1130.50 742.50 403.50 198.00 48.00 0.00 6.00 209.50 511.50 1262.00 1393.50 5905.00
1986 1142.50 937.00 605.50 465.50 246.00 21.50 29.00 0.00 235.00 382.00 810.50 1136.00 6010.50
1987 1200.50 790.50 635.00 331.50 167.00 46.00 12.50 0.00 60.00 368.00 731.50 1180.50 5523.00
1988 1240.50 848.00 652.50 382.00 234.00 124.00 8.50 0.50 137.50 290.50 809.50 1155.50 5883.00
1989 1114.50 1129.00 832.00 347.50 215.00 29.00 6.50 3.00 34.00 446.00 732.00 1037.00 5925.50
1990 939.00 929.00 623.00 297.00 247.50 99.00 11.00 14.50 10.00 537.50 718.00 1364.52 a 5790.02
1991 1216.50 656.50 708.50 391.50 216.50 98.50 0.00 0.50 23.50 444.50 816.50 914.50 5487.50
1992 960.50 719.00 465.00 a 354.50 104.00 22.00 5.50 19.00 137.50 388.00 782.00 1267.50 5224.50
1993 1349.00 1009.50 779.50 448.50 101.50 63.00 13.50 13.50 97.00 342.50 921.50 1046.50 6185.50
1994 909.00 884.00 544.50 295.00 136.50 55.50 7.50 0.00 14.00 405.50 888.00 1054.50 5194.00
1995 1106.00 732.50 660.00 421.00 119.50 58.00 2.00 21.50 51.50 467.50 736.00 1050.00 5425.50
1996 1252.00 980.50 665.50 380.00 298.00 43.50 14.50 6.50 121.00 494.50 903.50 1308.00 6467.50
1997 1163.50 881.00 684.50 445.50 131.50 43.00 5.00 2.00 76.00 448.00 737.50 1010.00 5627.50
1998 1102.00 731.00 587.00 376.00 174.00 16.50 0.00 4.00 26.50 432.00 714.00 1104.00 5267.00
1999 927.00 749.00 646.00 398.00 281.50 77.50 17.50 19.00 96.50 461.50 682.00 924.00 5279.50
2000 1129.00 898.50 644.00 293.00 189.00 44.50 15.00 3.50 133.00 428.50 991.50 1216.50 5986.00
2001 1126.00 993.50 674.00 474.50 200.00 117.00 6.00 3.50 51.00 478.50 738.50 1023.00 5885.50
2002 1005.50 818.50 780.50 419.50 248.50 51.00 5.00 5.00 94.00 468.00 778.00 935.50 5609.00
2003 977.50 758.00 610.00 436.50 213.50 18.50 0.50 0.00 72.50 352.00 948.00 1146.00 5533.00
2004 1145.50 908.00 562.50 313.00 179.50 47.00 0.50 7.00 113.00 393.00 801.00 974.50 5444.50
2005 1167.00 779.00 560.50 391.50 145.00 57.00 0.00 0.00 77.00 385.50 874.50 1220.00 5657.00
2006 946.00 840.00 688.00 409.50 213.50 22.00 0.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3119.00
Period of Record Statistics
MEAN 1147.12 860.99 668.85 416.39 205.22 58.89 9.96 10.70 100.71 434.05 825.65 1127.78 5847.45
S.D. 148.46 111.94 78.65 68.56 56.76 32.70 9.64 13.42 61.10 62.73 105.53 142.93 362.52
SKEW 0.40 0.60 0.12 -0.04 0.20 0.87 0.79 1.70 0.42 -0.16 1.68 0.52 0.18
MAX 1567.50 1130.50 842.50 552.50 353.50 147.00 31.00 55.00 235.00 576.50 1262.00 1477.50 6684.00
MIN 886.00 656.50 465.00 293.00 101.50 16.50 0.00 0.00 10.00 290.50 682.00 914.50 5194.00
NO YRS 46 47 47 47 47 47 46 46 46 46 46 47 45