BEAVERTON 2 SSW, OREGON

Monthly Total Heating Degree Days

(350595)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200703
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
1972 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 358.00 f 535.50 908.00 1443.50
1973 847.50 573.50 609.48 c 448.50 266.50 172.50 36.00 118.00 116.50 397.50 0.00 z 648.50 4234.48
1974 888.00 659.50 609.50 463.45 a 395.77 a 139.14 a 74.50 46.50 55.50 344.00 561.00 683.50 4920.35
1975 747.00 699.50 651.00 587.00 293.50 176.38 a 55.50 98.34 b 91.00 388.00 628.50 708.50 5124.22
1976 734.50 692.00 682.00 502.00 293.00 229.50 64.00 77.00 92.50 369.50 539.50 814.50 5090.00
1977 881.50 597.00 670.50 390.00 387.00 125.17 a 78.00 45.00 187.00 386.50 648.00 679.50 5075.17
1978 723.50 538.50 507.00 438.00 346.00 85.50 53.50 57.00 175.34 a 340.00 774.50 905.00 4943.84
1979 1057.00 673.00 489.50 436.50 234.00 118.50 46.50 34.00 70.50 280.55 a 624.00 647.90 a 4711.95
1980 903.00 648.36 a 614.12 b 375.00 298.12 a 208.50 54.50 91.00 140.00 356.00 537.00 701.12 a 4926.71
1981 669.00 633.63 a 534.50 445.00 291.50 184.50 74.00 43.00 131.00 430.00 562.24 a 719.72 a 4718.09
1982 867.00 653.00 613.50 544.50 309.00 116.50 79.00 60.50 174.50 405.50 700.00 795.50 5318.50
1983 734.70 a 518.00 484.00 414.00 237.50 154.00 80.00 28.50 187.50 415.00 526.50 929.50 4709.20
1984 693.50 596.50 499.50 486.00 350.00 194.50 53.00 41.50 142.00 449.50 608.50 868.00 4982.50
1985 914.00 717.50 648.50 385.50 0.00 z 0.00 z 3.50 45.50 202.50 423.00 846.50 918.63 a 5105.13
1986 657.00 603.08 b 416.50 468.00 304.50 78.00 83.00 4.00 211.00 294.50 553.50 745.00 4418.08
1987 758.50 559.00 538.00 346.50 231.00 78.00 51.50 31.52 a 93.50 249.50 530.00 817.00 4284.02
1988 811.50 582.00 581.00 417.50 320.00 152.00 54.00 58.00 140.00 240.00 579.00 775.50 4710.50
1989 741.00 812.00 618.00 296.50 260.50 96.50 55.50 67.50 90.50 370.50 563.79 a 779.00 4751.29
1990 695.50 687.50 498.50 343.00 314.00 106.50 10.00 22.50 43.45 a 437.50 578.00 954.00 4690.45
1991 770.00 471.50 618.00 0.00 z 384.50 217.00 27.00 36.00 69.00 329.50 558.00 726.95 a 4207.45
1992 0.00 z 476.50 406.50 329.50 176.00 79.50 20.00 23.50 163.50 302.00 586.50 818.50 3382.00
1993 876.50 692.50 512.00 422.50 174.50 138.50 104.50 45.50 98.00 265.00 773.50 760.00 4863.00
1994 666.50 a 684.50 466.50 382.50 206.50 164.00 37.50 16.00 65.00 424.50 750.00 724.00 4587.50
1995 654.00 524.22 a 551.50 474.50 204.00 145.00 26.00 71.00 53.00 381.00 435.50 710.50 4230.22
1996 751.00 699.50 551.00 395.50 364.50 137.50 34.00 39.00 173.50 413.85 a 620.50 734.70 a 4914.55
1997 727.00 621.50 622.00 480.50 157.00 134.50 24.00 0.00 z 0.00 z 32.00 z 441.50 733.00 3941.00
1998 667.00 511.00 497.50 372.41 a 281.50 63.00 11.50 11.50 40.00 365.00 526.50 761.05 a 4107.96
1999 723.69 b 611.50 598.50 438.62 a 356.50 c 152.59 a 44.20 d 20.50 123.46 d 321.37 a 465.50 663.40 a 4519.83
2000 767.25 e 615.13 c 621.50 353.04 b 249.03 a 99.31 a 55.05 b 54.50 102.32 b 349.00 665.00 734.70 a 4665.84
2001 723.50 639.33 a 522.72 b 463.97 a 166.33 e 172.22 c 34.10 a 31.00 b 96.21 a 372.52 a 511.00 737.28 a 4470.18
2002 749.00 580.50 608.00 375.00 318.00 118.89 c 19.50 32.50 61.00 h 328.50 522.50 688.00 4340.39
2003 568.00 557.50 534.50 334.00 h 193.00 i 73.85 d 0.00 z 6.50 m 42.50 p 107.00 p 437.00 j 316.00 r 1733.85
2004 366.00 r 358.00 k 454.09 d 210.00 g 130.00 m 32.00 n 2.00 t 5.50 v 0.00 z 100.00 s 0.00 z 387.00 n 454.09
2005 431.50 m 309.50 m 304.50 j 423.60 e 144.00 k 181.00 22.00 18.00 139.50 209.00 j 601.50 616.00 i 1385.60
2006 670.00 658.58 d 642.70 c 382.78 c 266.00 91.00 27.50 49.00 80.50 368.50 577.50 b 783.50 4597.56
2007 838.50 587.00 329.00 j 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 1425.50
Period of Record Statistics
MEAN 764.86 617.40 559.76 421.98 281.21 136.99 46.65 45.72 118.28 359.93 591.59 767.94 4733.26
S.D. 100.41 75.49 73.73 63.40 67.89 45.05 24.62 25.91 49.73 56.52 95.28 84.88 294.13
SKEW 0.74 0.10 -0.28 0.42 -0.17 0.21 0.28 0.90 0.22 -0.48 0.88 0.71 -0.23
MAX 1057.00 812.00 682.00 587.00 395.77 229.50 104.50 118.00 211.00 449.50 846.50 954.00 5318.50
MIN 568.00 471.50 406.50 296.50 157.00 63.00 3.50 4.00 40.00 240.00 435.50 647.90 4107.96
NO YRS 32 33 33 31 30 32 32 31 30 30 32 32 25