NEWHALEM, WASHINGTON

Monthly Total Growing Degree Days

(455840)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1959 10.50 11.00 60.97 a 251.50 407.50 615.00 821.00 690.50 488.50 335.00 85.50 9.50 3786.47
1960 5.00 30.04 a 130.95 b 238.50 399.00 578.00 870.00 709.50 609.50 393.50 61.50 17.00 4042.48
1961 54.00 39.50 119.00 217.50 466.50 740.50 860.00 939.00 542.00 232.00 44.50 6.41 b 4260.91
1962 32.00 83.50 83.50 313.00 351.50 574.14 a 723.00 699.00 632.00 363.50 134.50 39.00 4028.64
1963 11.00 117.00 100.50 221.00 503.50 569.50 676.00 819.50 707.00 372.00 62.00 13.50 4172.50
1964 1.00 11.00 49.00 159.00 353.50 543.50 722.00 667.50 512.00 375.50 51.50 6.00 3451.50
1965 4.00 9.00 143.00 274.50 397.50 580.00 876.50 809.50 547.00 394.50 172.00 24.50 4232.00
1966 0.00 28.00 102.00 277.50 481.50 547.00 694.00 767.00 644.00 279.00 98.00 36.00 3954.00
1967 5.00 16.50 20.00 i 187.50 437.50 717.00 781.20 a 943.00 723.21 b 305.00 153.50 1.50 4270.91
1968 10.50 102.50 142.50 176.50 477.00 560.00 825.50 701.50 590.50 245.00 76.00 0.50 3908.00
1969 0.00 5.50 119.00 219.00 572.50 751.50 698.50 688.00 542.00 303.50 148.00 15.50 4063.00
1970 1.00 93.50 126.50 152.00 444.50 711.00 778.00 771.00 478.20 e 295.00 136.00 0.00 3986.70
1971 1.00 7.50 18.00 192.50 474.50 472.50 791.00 855.50 518.00 281.00 26.00 2.07 a 3639.57
1972 0.00 8.06 b 69.75 e 128.50 508.50 568.50 771.50 803.50 483.00 321.50 94.50 8.00 3765.31
1973 1.50 53.00 106.50 263.50 477.00 548.33 c 774.50 709.00 661.07 b 0.00 z 30.54 b 37.00 3661.94
1974 26.50 9.50 72.16 b 191.00 f 373.00 639.23 d 757.43 a 837.00 738.89 c 398.57 c 109.80 e 51.09 d 4013.17
1975 3.62 a 0.58 d 42.76 b 163.50 353.00 f 539.44 c 554.50 i 656.96 e 712.50 b 264.10 e 44.00 14.97 b 2442.43
1976 4.98 c 1.61 b 24.80 a 230.50 423.50 498.50 694.40 a 653.67 b 665.69 a 331.24 d 150.00 e 26.02 c 3704.91
1977 8.30 c 79.00 38.50 314.00 377.68 a 647.22 c 684.07 a 885.00 503.04 b 287.50 30.58 d 2.87 d 3857.76
1978 14.43 b 44.69 b 160.00 248.79 a 270.50 k 486.50 i 779.00 728.00 339.50 g 372.00 22.00 f 0.00 f 2346.92
1979 0.00 b 0.00 f 129.00 222.50 504.35 e 589.50 793.60 a 777.07 a 651.92 d 375.88 c 82.50 d 29.93 b 4156.24
1980 0.00 26.21 c 48.00 346.07 b 442.78 a 518.79 a 561.00 h 682.60 e 533.79 a 376.98 c 94.44 c 49.00 3118.68
1981 104.50 44.50 181.72 b 181.50 438.17 e 451.00 695.43 a 880.50 570.00 a 240.80 c 129.64 b 8.00 3925.78
1982 0.00 1.50 56.00 142.50 407.00 683.00 667.50 705.00 557.50 280.50 21.00 9.50 3531.00
1983 19.00 44.00 192.00 284.00 548.00 546.00 641.50 761.50 473.00 235.50 77.00 0.00 3821.50
1984 22.00 19.00 166.50 186.50 309.50 550.00 765.00 758.50 478.50 227.00 26.00 0.00 3508.50
1985 2.00 1.00 53.00 203.00 453.00 586.00 903.00 773.50 498.50 230.50 12.50 1.50 3717.50
1986 38.00 20.50 171.00 175.00 424.50 688.50 634.50 914.00 536.50 399.50 52.50 1.50 4056.00
1987 2.50 0.00 z 150.00 355.00 513.00 659.50 768.00 783.50 669.00 433.00 170.00 0.00 z 4503.50
1988 0.00 z 0.00 z 83.50 270.50 0.00 z 0.00 z 736.00 754.00 564.50 421.50 62.00 24.50 2916.50
1989 0.00 0.50 54.50 329.50 422.00 681.00 723.50 714.50 688.00 319.00 80.00 49.00 4061.50
1990 13.50 6.00 110.00 325.00 421.50 562.00 860.50 857.00 711.00 192.50 85.00 0.00 4144.00
1991 0.00 53.50 65.00 239.50 406.50 518.00 792.00 800.50 661.00 354.50 84.50 20.50 3995.50
1992 17.50 106.50 333.00 343.00 585.50 730.50 784.50 830.50 472.00 363.00 72.00 2.07 a 4640.07
1993 0.00 33.00 140.00 230.50 621.50 540.00 611.00 758.00 632.50 418.00 26.00 9.50 4020.00
1994 48.00 0.50 149.00 345.50 531.00 549.00 828.00 795.00 668.50 277.50 0.00 0.50 4192.50
1995 15.00 57.00 108.50 270.50 590.50 615.00 803.00 605.50 729.50 244.00 107.50 17.00 4163.00
1996 10.00 41.00 100.50 246.50 301.00 576.00 820.50 777.50 478.00 259.00 48.00 0.00 3658.00
1997 1.50 3.50 35.50 199.50 507.00 534.50 712.00 842.50 604.50 267.50 137.00 7.00 3852.00
1998 4.50 46.50 123.50 287.50 491.00 643.50 872.50 844.50 699.00 320.50 66.50 2.00 4401.50
1999 1.50 3.00 46.50 196.50 335.50 473.50 706.50 773.50 612.00 293.00 111.00 11.50 3564.00
2000 2.00 9.13 b 61.50 292.50 394.73 a 598.50 716.00 710.00 547.50 326.50 38.50 4.00 3700.86
2001 16.00 10.37 a 119.00 221.50 437.00 537.00 728.00 803.00 593.00 255.50 115.50 0.50 3836.37
2002 11.50 2.00 29.50 208.00 384.50 633.00 778.50 778.50 587.50 310.50 120.00 22.00 3865.50
2003 39.00 34.00 85.50 232.50 431.00 695.00 845.50 858.00 687.00 393.00 24.50 15.50 4340.50
2004 1.50 45.00 153.00 401.50 510.50 687.00 891.00 868.50 513.00 355.00 92.00 35.00 4553.00
2005 55.50 44.50 167.00 324.50 594.00 534.00 777.50 857.00 540.00 327.50 46.00 30.00 4297.50
2006 15.00 8.00 82.50 280.50 471.50 654.00 845.50 791.00 642.50 328.00 73.50 4.50 4196.50
2007 4.00 34.00 92.00 219.50 496.50 575.00 836.50 745.50 583.50 232.50 69.00 16.50 3904.50
2008 0.00 13.50 24.50 121.50 450.50 504.50 747.50 776.00 586.00 276.00 134.50 22.00 3656.50
2009 4.65 a 6.50 22.50 223.50 0.00 z 672.50 883.50 796.50 643.50 280.50 51.50 2.50 3587.65
2010 54.50 63.50 151.50 233.00 396.00 540.00 785.00 797.00 559.00 359.50 95.50 0.50 4035.00
2011 6.50 8.50 55.50 94.50 359.50 530.00 659.50 776.50 681.50 272.00 11.00 3.50 3458.50
2012 6.50 27.00 20.00 264.50 441.50 473.50 759.50 886.50 685.50 327.00 95.50 12.00 3999.00
2013 0.00 1.50 95.00 31.00 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 96.50
Period of Record Statistics
MEAN 13.16 30.12 99.35 240.12 450.93 590.96 768.26 780.87 596.92 315.52 79.63 13.90 3953.40
S.D. 19.76 30.47 57.80 65.87 73.63 76.00 72.22 74.78 80.11 59.77 43.71 14.32 280.67
SKEW 2.50 1.21 1.17 0.16 0.26 0.38 -0.09 0.04 0.04 0.08 0.26 1.07 0.24
MAX 104.50 117.00 333.00 401.50 621.50 751.50 903.00 943.00 738.89 433.00 172.00 51.09 4640.07
MIN 0.00 0.50 18.00 94.50 301.00 451.00 611.00 605.50 472.00 192.50 0.00 0.00 3451.50
NO YRS 54 52 54 53 50 52 52 54 53 53 53 52 44