ELTOPIA 8 WSW, WA

Monthly Sum of Heating Degree Days (Degrees Fahrenheit)

(452542)

Base Temperature = 65 F

File last updated on Apr 27, 2015
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.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
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)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
1974-----z-----z613.50a418.50 293.50 57.50 29.50 15.00 70.50 430.00 675.50 853.50 3457.00b
19751011.00 816.50a712.50 566.50 264.00 109.00 2.50 33.00a86.00 412.00 746.50 906.21b5665.71
1976900.50a781.00 681.50a465.00 244.00 140.00 11.00 34.00a53.34b436.00a726.00 1015.00 5487.34
19771226.00 666.50 652.00 322.00 316.00 31.00 34.14b28.00 201.00 424.00 770.50 927.50 5598.64
19781026.50 738.00 559.50 446.50 274.00a52.50 8.00 36.00 150.00 456.50 964.00 1098.00 5809.50
19791509.00a828.00 575.50 416.50 170.50 64.50 21.00 0.00 42.00 311.00 889.50 864.50 5692.00
19801202.00a843.00 661.50 333.50 191.00a110.00 17.00 43.50 65.50a425.00 700.00 858.00 5450.00
1981854.00 726.00 546.50a419.00 238.00 113.50 32.00 2.50 129.00 446.00 656.40d995.50 5158.40
19821095.50 699.50a645.00 524.50 249.00 57.50 41.00 12.50 141.50 440.00a843.00a1006.50 5755.50
1983819.50 651.00 497.00a453.00 213.00 92.00 45.50 0.50a193.00 405.00 580.52b1180.96e5130.98
1984969.31b733.50 552.50 479.50 331.50 105.00 7.50 15.50 201.50a513.10b757.00 1164.50a5830.41
19851221.00 906.00a682.50 381.00 217.50 90.00 1.00 27.00 236.00 485.50 1178.50 1379.50 6805.50
19861007.50 754.00 550.50 437.07b234.83b23.50 43.50 0.00 193.50 372.50 690.50 1032.50 5339.90
19871060.18c724.00 567.00 -----z156.00 59.50a20.00 13.50 78.00 402.50 685.50 1051.50 4817.68a
19881022.00a732.00 652.00 354.00 239.00 104.00 18.50a4.50 144.50 220.00a643.00 1016.00a5149.50
1989845.00a1078.00a665.50 314.50a236.00 35.00 13.00 14.00 87.50 417.00 639.00a987.00a5331.50
1990787.50 762.23b600.00 332.50 247.00 76.50a12.00a15.00 24.50 480.00 614.00 1234.00 5185.23
19911133.00 609.00 679.00 427.00 280.50 135.00 3.00a6.00 67.00 413.00a745.50 885.50 5383.50
1992847.50 684.50 512.00 361.50 143.28b33.50 7.00 30.50 162.00a381.50 755.00 1081.00 4999.28
19931343.00 1007.50 717.00 439.50 124.50 86.00 38.50 39.00 142.50 381.50 925.50 931.00 6175.50
1994793.00a802.00a531.00a315.50 166.50 82.50a11.50a1.00 41.50 408.50a787.50 913.50a4854.00
1995988.00 653.50 652.00 445.50 171.00a92.50 4.00 41.50 69.50 465.50 642.00 991.00 5216.00
19961016.00a765.52d657.00 374.00 321.50 86.50 17.00 18.50 165.00 448.50 826.00 1092.50 5788.02
19971003.00 728.00 595.00 461.50a151.00a84.50 13.00 0.00a79.00 426.00 711.50 938.50a5191.00
1998894.83b648.00 573.00a440.50 209.50 38.50 0.00 7.50 47.50 442.00a596.00 990.50 4887.83
1999826.00 662.50 614.50 473.00 336.21b112.00 28.50 14.00 117.00 433.00 597.00 817.50c5031.21
2000961.00 755.50 642.50 327.50a212.50 66.00 27.00 22.00 167.00 444.50 909.50a1060.50a5595.50
20011006.50 806.00 601.00a452.00a218.50 120.00 9.50 5.00a70.50 422.00 685.50 914.50 5311.00
2002828.50a741.50 701.90b418.00 266.50 64.00a15.50 12.50 121.00 498.00 742.50 818.79b5228.69
2003790.50a681.50a483.50a390.50a234.00a37.00 1.50a0.00e73.00 280.50a819.00 966.00 4757.00
20041146.50 772.50a479.50 352.14b193.50 85.50 7.50 0.50 107.50 325.00a748.50 861.72b5080.37
20051034.50a764.50 513.50 385.00 155.00 68.00 1.50 3.62b123.50a350.00 772.50a1100.69b5272.31
2006774.00a810.00 631.50a374.00a202.76b44.50a4.50 16.00a102.00 421.50 735.00 1044.81e5160.57
20071048.50a-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z1048.50k
2008-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
2009-----z-----z-----z-----z-----z13.00m5.00a-----z-----z-----z-----z-----z5.00k
Period of Record Statistics
MEAN999.72 760.35 606.01 409.40 227.32 77.48 16.22 15.52 113.72 412.64 750.24 999.35 5397.48
S.D.171.57 98.96 68.51 61.98 56.22 31.27 13.38 13.68 55.14 61.01 123.43 125.07 418.71
SKEW0.89 1.39 -0.23 0.31 0.19 0.09 0.77 0.58 0.39 -1.23 1.37 0.89 1.29
MAX1509.00 1078.00 717.00 566.50 336.21 140.00 45.50 43.50 236.00 513.10 1178.50 1379.50 6805.50
MIN774.00 609.00 479.50 314.50 124.50 23.50 0.00 0.00 24.50 220.00 580.52 817.50 4757.00
YRS33.00 32.00 33.00 32.00 33.00 33.00 34.00 33.00 33.00 33.00 33.00 33.00 31.00