ICE HARBOR DAM, WA

Monthly Sum of Cooling Degree Days (Degrees Fahrenheit)

(453883)

Base Temperature = 65 F

File last updated on Apr 25, 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
1957-----z-----z0.00u6.44c67.00 197.00 253.50 213.50 147.00 5.17b0.00 0.00 889.62c
19580.00 0.00 0.00 0.00 144.50 261.50 452.00 461.00 93.50 8.00 0.00 0.00a1420.50
19590.00 0.00 0.00 0.00 7.50 146.50 365.00 218.00 48.00 1.50 0.00 0.00 786.50
19600.00 0.00 0.00 0.00 24.50 167.50 507.50 250.50 103.50 16.00 0.00 0.00 1069.50
19610.00 0.00b0.00 0.00b30.50 306.00 442.50 447.00 34.50a3.00 0.00 0.00 1263.50
19620.00a0.00 0.00a7.00a3.00 130.50 323.50 251.00 114.50 0.00a0.00a0.00 829.50
19630.00 0.00 0.00 0.00 39.50 134.50 233.00 321.50 205.50 9.00 0.00 0.00 943.00
19640.00 0.00c0.00 0.00 17.00 102.50 324.00 188.50 39.50 0.00 0.00 0.00 671.50
19650.00 0.00 0.00 5.50 24.00a100.00 302.50a309.00 33.50 8.50 0.00 0.00 783.00
19660.00 0.00 0.00 0.00 72.00 111.50 263.00 304.50 156.00 10.00 0.00a0.00 917.00
19670.00 0.00 0.00 0.00 31.50 171.00 393.50 459.00 229.50 0.00 0.00 0.00a1284.50
19680.00a0.00 0.00 8.50a21.50 146.00 403.50 236.00 104.50 3.50 0.00a0.00 923.50
19690.00 0.00 0.00 3.00 46.00 216.50 259.00 210.00 81.00 0.00 0.00 0.00 815.50
19700.00 0.00 0.00 0.00 13.50 212.00 353.00 280.50 33.00 6.00 0.00 0.00 898.00
19710.00 0.00 0.00 0.00 34.00 43.00 317.00 435.00 23.50 2.00 0.00 0.00b854.50
19720.00a0.00a0.00 0.00 39.00 102.00 263.50 -----z58.00a0.00 0.00 0.00 462.50a
19730.00 0.00 0.00 0.00 52.00 132.00 302.50 272.50 61.00 0.00 0.00 0.00 820.00
19740.00 0.00 0.00b0.00 8.50 154.00 230.00 258.50 92.00 1.50a0.00 0.00 744.50
19750.00 0.00 0.00 0.00 10.00 51.50 351.72b170.00a67.32b1.50 0.00a0.00 652.05
19760.00a0.00a0.00 0.00a10.00 51.50 237.00 156.21b99.00 9.00 0.00 0.00 562.71
19770.00 0.00 0.00 27.00 0.00 166.00a221.00 352.00 20.00 0.00 0.00 0.00 786.00
19780.00 0.00b0.00c0.00b3.00 96.50 218.50 201.21b20.00a0.00 0.00 0.00 539.21
19790.00d0.00 0.00 0.00a-----z115.50 -----z267.50 79.00 0.00 0.00b0.00a462.00b
1980-----z-----z0.00 3.00 6.50 32.00a246.50a176.00 71.50a11.50a0.00 0.00 547.00b
19810.00 0.00a0.00 2.00 12.50a31.50a222.50 326.50 86.48b0.00b0.00 0.00 681.48
19820.00e0.00b0.00c0.00a10.34b142.00 251.00 260.00a63.00 0.00 0.00c0.00b726.34
19830.00a0.00 0.00b0.00 77.14c62.50a163.50a299.50 39.88b0.00 0.00 0.00b642.52
19840.00 0.00 0.00b0.00 -----z62.00a266.00 269.50 57.50a0.00a0.00 0.00 655.00a
19850.00 0.00b0.00a0.00a51.50a126.00a420.00 -----z18.50 0.00 -----z0.00a616.00b
19860.00a0.00 0.00 2.50a72.50 187.00 155.00 188.50o0.00q3.00 0.00a0.00 420.00b
19870.00a0.00a0.00a19.00 74.00 166.00 249.50a248.50 157.00 2.50 0.00 0.00 916.50
19880.00 0.00 0.00 0.00 30.50a129.50 270.00 235.00 64.73b10.00 0.00 0.00 739.73
19890.00a0.00 0.00b0.00b11.00a137.00a242.50a188.00a27.50f0.00 0.00 0.00 578.50a
19900.00c0.00b0.00l0.00c0.00 106.68b350.50 297.00 161.50 1.50 0.00a0.00 917.18a
19910.00b0.00 0.00 0.00 0.00 35.00 294.00 350.50 -----z10.00a0.00a0.00 689.50a
19920.00 0.00 -----z5.00a61.55b252.00 247.50a300.50a63.00 7.00 0.00a0.00a936.55a
19930.00c0.00a0.00n0.00 87.00 -----z118.00a197.00 102.50 7.00a0.00 0.00 511.50b
19940.00 0.00 0.00a9.50a-----z104.00 385.00 350.17b112.00a2.00 0.00 0.00 962.67a
19950.00d0.00a0.00a0.00 25.50a71.00 270.50 155.00 109.00 0.00b0.00 0.00a631.00
19960.00 0.00 0.00 0.00 0.50 59.50 313.00 208.50a57.50 6.00a0.00a0.00 645.00
19970.00 0.00 0.00 0.00 40.00 56.96b235.50a313.00 67.00a1.50 0.00 0.00 713.96
19980.00 0.00a0.00a0.00 29.50 88.00 429.00 303.00 173.50 2.00a0.00b0.00 1025.00
19990.00 0.00 0.00 0.00 10.50a90.50 174.00a231.00 49.00 0.00a1.50a0.00a556.50
20000.00 0.00a0.00a0.00a16.50 56.45b244.00a265.34b59.00a0.00 0.00 0.00 641.29
20010.00a0.00 0.00 4.50 47.50a67.00 276.72b306.00a90.50a0.00b0.00b0.00d792.22
20020.00d0.00a0.00a0.00b8.04c135.00a328.00 192.00 59.00 0.00 0.00 0.00 722.04
20030.00b0.00a0.00a0.00 31.50 151.00 364.50a314.00 113.00 14.00a0.00 0.00a988.00
20040.00a0.00b0.00d0.50 5.00 155.50 363.50 318.50a37.00a0.52b0.00a0.00 880.52
20050.00 0.00d0.00 -----z45.52b74.00 316.00 294.83b37.00 0.00d0.00 0.00d767.34a
20060.00j0.00 0.00a0.00 53.00 108.50 377.00a252.00 83.00 0.00 2.00a0.00a875.50a
20070.00 0.00 0.00 0.00 19.50 113.41b383.00a214.50 74.50 0.00 0.00 0.00a804.91
20080.00 0.00 0.00 0.00 30.00c68.00a293.50a225.00a35.00 5.00 0.00 0.00 656.50
20090.00 0.00a0.00 1.04b41.50 117.04b308.04c310.00 86.50 0.00 0.00 0.00 864.11
20100.00b0.00 0.00 0.00 14.50 59.00a251.25c228.50a45.50 2.50a0.00 0.00a601.25
20110.00 0.00b0.00 0.00b2.14c40.00a145.50 300.50 108.23b0.00b0.00 0.00 596.38
20120.00 0.00b0.00 6.00 15.00a45.00a301.00 277.50 -----z0.00 -----z0.00m644.50c
20130.00 -----z0.00 -----z-----z-----z-----z317.00 147.00 -----z0.00 0.00 464.00f
20140.00 -----z0.00 -----z10.34b85.50 389.00 322.50 69.00a16.50a0.00 0.00 892.84b
20150.00 0.00 0.00 -----z-----z-----z-----z-----z-----z-----z-----z-----z0.00i
Period of Record Statistics
MEAN0.00 0.00 0.00 2.01 30.35 116.60 297.52 274.72 82.24 3.28 0.06 0.00 809.74
S.D.0.00 0.00 0.00 4.83 28.00 60.70 81.59 71.67 47.24 4.49 0.33 0.00 198.95
SKEW0.00 0.00 0.00 3.51 1.58 0.88 0.21 0.72 1.06 1.37 5.17 0.00 1.20
MAX0.00 0.00 0.00 27.00 144.50 306.00 507.50 461.00 229.50 16.50 2.00 0.00 1420.50
MIN0.00 0.00 0.00 0.00 0.00 31.50 118.00 155.00 18.50 0.00 0.00 0.00 539.21
YRS56.00 55.00 55.00 55.00 54.00 56.00 56.00 55.00 54.00 57.00 56.00 57.00 40.00