GRAYS RIVER HATCHERY, WASHINGTON

Monthly Total Heating Degree Days

(453333)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1962 0.00 z 0.00 z 292.50 p 454.50 458.50 228.50 144.50 89.00 122.50 339.00 515.00 661.50 3013.00
1963 897.00 439.50 618.00 494.00 317.50 238.50 146.00 79.00 78.50 331.00 578.50 678.00 4895.50
1964 726.00 666.50 656.50 552.00 438.00 252.50 112.00 187.00 233.00 381.00 668.00 828.50 5701.00
1965 791.50 636.22 a 598.50 470.50 441.00 254.00 101.78 a 91.50 239.00 315.00 522.50 781.50 5243.01
1966 770.50 673.50 677.50 473.00 378.00 266.00 144.00 130.50 160.00 447.43 a 571.07 b 668.00 5359.50
1967 695.00 649.50 727.50 621.50 374.00 167.00 118.00 49.50 112.24 a 412.00 571.50 834.50 5332.24
1968 794.50 538.00 587.50 579.50 381.00 274.50 101.50 176.50 221.00 487.00 593.50 849.00 5583.50
1969 1029.00 761.50 670.00 582.50 339.00 171.50 208.50 213.00 216.00 492.50 578.50 679.00 5941.00
1970 729.50 552.00 629.00 589.50 362.00 180.50 122.50 141.50 299.00 479.50 603.00 812.00 5500.00
1971 802.00 686.50 751.00 564.50 373.00 338.00 144.00 96.00 279.00 498.50 626.50 871.00 6030.00
1972 901.50 702.00 629.50 650.17 a 321.37 a 255.00 146.00 113.50 303.50 484.50 595.00 882.50 5984.54
1973 835.50 641.00 682.00 524.50 375.50 272.00 158.00 230.50 221.00 454.00 696.50 660.00 5750.50
1974 884.50 668.00 688.00 549.50 504.00 267.50 196.33 a 117.50 127.00 416.00 565.50 692.50 5676.33
1975 790.50 706.00 758.43 b 657.50 405.00 302.07 a 162.50 209.00 208.00 502.50 680.00 782.00 6163.50
1976 769.50 748.00 759.50 583.00 406.00 340.00 192.50 210.50 195.00 409.50 573.00 735.50 5922.00
1977 837.00 586.50 731.00 499.00 495.50 230.50 196.50 92.50 277.24 a 455.00 677.50 707.50 5785.74
1978 704.00 555.50 564.50 508.50 432.50 163.00 120.50 143.00 249.00 368.00 737.50 896.50 5442.50
1979 997.17 a 715.04 a 553.00 480.50 340.50 239.00 131.00 118.00 135.00 342.60 b 608.00 613.50 5273.31
1980 870.00 621.50 639.00 459.50 382.50 289.00 132.27 a 190.50 205.50 376.50 542.00 667.00 5375.27
1981 615.50 584.50 555.50 495.50 369.42 a 252.00 157.50 95.50 193.97 a 453.50 555.00 713.00 5040.88
1982 860.50 672.50 665.00 597.50 402.00 207.50 147.50 131.50 179.00 395.00 658.00 744.00 5660.00
1983 639.00 529.00 536.00 483.00 290.50 243.00 137.00 96.00 273.50 493.00 581.50 911.50 5213.00
1984 715.50 625.00 546.50 588.00 468.50 301.50 178.00 174.50 252.50 545.00 650.50 879.50 5925.00
1985 799.00 740.00 714.50 476.50 398.50 236.50 59.50 155.00 276.00 484.00 875.00 858.50 6073.00
1986 640.50 615.50 529.00 567.00 403.00 196.00 204.50 67.00 293.50 349.50 589.00 707.50 5162.00
1987 749.00 567.00 564.00 446.50 333.00 221.38 a 165.50 114.50 172.50 344.50 528.00 814.00 5019.88
1988 780.00 601.50 633.50 501.50 393.50 277.50 147.00 154.00 252.00 327.50 597.00 766.00 5431.00
1989 767.00 862.50 671.50 431.50 377.00 188.50 201.00 160.00 174.00 432.00 565.00 699.00 5529.00
1990 721.00 780.00 582.50 458.00 427.00 256.50 85.00 91.50 121.50 484.50 591.00 976.00 5574.50
1991 803.00 483.50 691.00 542.50 423.00 307.00 160.50 115.00 145.50 416.00 579.00 688.50 5354.50
1992 689.50 522.00 488.50 440.00 279.50 168.50 99.50 105.50 262.50 389.50 633.50 825.00 4903.50
1993 909.50 705.00 601.50 511.50 144.00 s 56.50 x 181.50 133.00 187.00 346.00 733.50 759.00 5067.50
1994 641.50 713.50 560.00 457.00 334.50 252.00 132.50 125.00 142.50 481.00 753.00 749.50 5342.00
1995 646.50 557.50 608.00 519.50 293.50 228.50 109.00 166.50 87.50 423.50 498.50 688.00 4826.50
1996 751.00 674.00 592.00 457.00 458.00 260.50 99.00 113.00 270.00 459.50 639.50 744.50 5518.00
1997 734.50 620.50 660.00 510.50 281.50 249.50 134.50 57.50 157.50 435.50 510.50 733.00 5085.00
1998 714.00 554.00 584.00 517.50 382.50 228.50 76.50 106.50 162.50 430.50 568.00 815.00 5139.50
1999 746.07 a 649.19 a 708.50 565.00 460.00 298.00 167.92 a 94.50 238.97 a 449.50 534.44 c 687.17 a 5599.25
2000 807.50 646.50 657.00 435.50 400.50 220.34 a 133.50 172.57 a 227.59 a 437.21 b 694.50 728.50 a 5561.20
2001 730.00 689.00 623.74 b 577.00 351.33 a 315.50 196.00 106.20 d 0.00 z 0.00 z 567.50 759.50 a 4915.78
2002 770.50 643.50 717.00 513.00 436.00 226.00 110.50 146.50 207.00 468.00 536.00 686.00 5460.00
2003 586.00 630.00 590.00 526.50 405.00 184.50 103.50 91.50 149.00 348.00 689.00 740.00 5043.00
2004 771.00 601.50 540.00 411.50 317.50 175.50 53.00 50.00 197.00 376.00 623.00 698.50 4814.50
2005 697.00 609.50 536.50 493.00 285.00 246.50 111.00 73.00 283.50 428.00 664.50 752.50 5180.00
2006 667.50 709.00 659.00 474.00 315.50 201.00 127.00 132.00 142.00 413.00 636.00 750.72 a 5226.72
2007 826.50 604.00 578.15 a 525.50 401.00 241.00 56.00 94.50 202.50 449.00 652.00 781.50 5411.65
2008 861.50 641.50 697.00 600.00 344.50 292.00 104.00 108.00 168.50 445.00 539.50 629.50 i 4801.50
2009 436.50 n 650.00 768.50 528.50 0.00 z 149.50 63.00 70.00 h 109.50 g 370.00 m 674.00 373.00 r 2833.50
2010 624.00 h 0.00 z 0.00 z 344.00 i 345.50 f 127.50 s 0.00 z 0.00 z 0.00 z 0.00 z 473.50 m 0.00 z 0.00
2011 762.50 748.50 662.50 467.00 h 232.50 o 40.00 y 71.00 q 44.00 l 124.50 414.92 e 804.00 907.50 4424.42
2012 943.00 757.50 712.50 820.50 786.50 415.50 f 0.00 z 0.00 z 20.50 z 663.00 1249.00 2015.00 a 7947.00
2013 2015.00 1820.00 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 3835.00
Period of Record Statistics
MEAN 799.70 667.08 635.79 525.80 390.27 241.57 134.99 125.72 200.54 428.61 629.44 789.13 5443.09
S.D. 200.93 184.80 70.79 72.62 81.66 46.90 40.75 44.43 59.92 65.47 118.24 198.07 351.26
SKEW 4.62 4.93 0.05 1.44 2.37 0.01 -0.08 0.50 -0.07 0.70 3.12 5.07 0.16
MAX 2015.00 1820.00 768.50 820.50 786.50 340.00 208.50 230.50 303.50 663.00 1249.00 2015.00 6163.50
MIN 586.00 439.50 488.50 411.50 279.50 149.50 53.00 49.50 78.50 315.00 498.50 613.50 4814.50
NO YRS 49 50 49 49 47 47 48 47 47 48 50 48 43