TACOMA 1, WASHINGTON

Monthly Total Growing Degree Days

(458278)

Base Temperature = 40 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
1982 0.00 z 0.00 z 194.00 301.50 505.50 728.50 773.50 798.00 647.00 440.00 156.50 74.50 4619.00
1983 135.50 161.50 272.50 302.50 579.50 671.50 774.45 c 833.00 552.50 366.00 234.50 37.20 a 4920.65
1984 169.50 129.00 278.00 299.00 443.50 600.00 806.00 788.00 630.54 b 337.00 146.50 23.00 4650.04
1985 12.50 62.00 132.50 333.50 511.50 651.50 900.00 797.73 a 554.00 395.00 94.00 18.00 4462.23
1986 137.50 130.50 324.00 297.00 523.00 723.00 701.00 883.00 598.00 435.00 197.50 78.00 5027.50
1987 91.00 161.00 256.78 a 414.50 570.00 696.00 802.50 799.50 672.00 440.50 263.00 85.00 5251.78
1988 57.50 153.00 191.50 352.00 502.50 611.38 a 768.50 765.00 605.50 500.00 206.00 109.50 4822.38
1989 105.00 45.50 164.50 417.50 521.50 670.50 747.00 753.50 652.00 397.00 230.00 110.00 4814.00
1990 127.00 93.50 224.50 387.00 493.00 627.00 866.50 838.50 689.00 382.00 222.50 53.50 5004.00
1991 91.00 213.50 149.00 299.00 461.00 567.50 818.50 826.50 648.00 385.00 244.00 139.50 4842.50
1992 161.00 182.00 300.00 416.00 604.50 747.00 816.50 827.00 603.50 452.50 207.50 50.00 5367.50
1993 62.50 85.00 230.00 345.50 637.50 643.50 696.00 773.50 619.50 473.00 102.50 114.00 4782.50
1994 182.00 82.00 274.50 386.50 554.50 612.00 834.50 833.00 698.00 381.50 110.50 106.00 5055.00
1995 143.00 191.50 237.00 335.00 597.00 656.00 846.00 721.00 709.00 410.00 291.50 124.00 5261.00
1996 119.00 132.00 239.50 376.50 439.50 0.00 z 824.50 806.50 562.50 377.50 170.50 69.50 4117.50
1997 131.00 113.00 202.00 0.00 z 0.00 z 653.00 802.00 874.50 681.50 397.50 271.00 81.50 4207.00
1998 152.00 195.00 246.00 344.00 512.00 661.00 0.00 z 833.00 690.50 0.00 z 227.50 129.00 3990.00
1999 115.50 115.50 171.50 297.50 406.00 596.50 743.00 798.50 603.00 391.50 271.50 129.00 4639.00
2000 60.00 124.29 a 0.00 z 358.50 507.50 672.50 781.00 0.00 z 624.00 0.00 z 27.00 z 63.00 m 3127.79
2001 110.50 71.00 246.50 323.00 545.50 610.00 787.00 817.00 639.00 398.00 244.50 87.50 4879.50
2002 0.00 z 108.50 150.50 313.50 491.00 712.50 826.00 819.50 640.50 377.50 242.50 142.50 4824.50
2003 187.00 107.00 295.00 349.50 535.50 735.00 876.00 860.50 717.50 547.00 129.50 104.37 a 5443.87
2004 115.00 196.00 346.00 492.50 638.50 756.50 950.00 923.50 654.00 496.50 245.00 191.50 6005.00
2005 197.00 118.50 355.50 414.00 665.50 694.50 873.00 162.50 y 403.50 j 537.00 177.50 109.69 e 4142.19
2006 211.00 131.00 266.82 c 388.50 411.50 g 644.42 d 512.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1641.74
Period of Record Statistics
MEAN 124.91 129.24 239.50 356.00 532.41 664.22 809.28 816.83 638.74 423.50 203.74 94.21 5013.44
S.D. 48.99 45.24 61.69 50.89 66.70 51.70 60.62 44.98 47.54 56.63 57.69 41.45 368.73
SKEW -0.29 0.14 0.05 0.76 0.22 0.11 0.19 0.22 -0.20 0.80 -0.51 0.06 1.06
MAX 211.00 213.50 355.50 492.50 665.50 756.50 950.00 923.50 717.50 547.00 291.50 191.50 6005.00
MIN 12.50 45.50 132.50 297.00 406.00 567.50 696.00 721.00 552.50 337.00 94.00 18.00 4462.23
NO YRS 23 24 24 24 23 24 23 22 23 22 23 23 17