DAYTON 1 WSW, WASHINGTON

Monthly Total Growing Degree Days

(452030)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1893 0.00 z 0.00 z 0.00 z 10.00 165.50 268.00 538.33 e 0.00 z 293.00 62.50 7.50 1.00 1345.83
1894 4.50 0.00 14.50 0.00 z 0.00 z 358.50 715.00 724.50 277.50 0.00 z 0.00 z 0.00 z 2094.50
1895 0.00 z 0.00 z 0.00 z 151.00 0.00 z 0.00 z 0.00 z 600.00 156.00 110.00 0.00 z 0.00 z 1017.00
1896 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 21.50 2.50 24.00
1897 2.50 0.00 7.00 123.50 376.00 374.50 0.00 z 709.50 301.00 101.50 25.38 d 7.00 2027.88
1898 0.00 21.00 1.50 113.50 183.50 391.00 0.00 z 0.00 z 334.00 54.50 0.50 3.00 1102.50
1899 3.50 0.00 3.50 7.50 s 98.50 274.50 611.50 363.00 368.00 39.00 21.00 8.00 1790.50
1900 2.50 0.00 25.83 a 121.00 262.50 499.00 563.00 617.50 345.00 104.50 0.00 1.00 2541.83
1901 0.00 1.50 35.50 11.50 243.87 a 245.50 571.00 695.71 e 0.00 z 0.00 z 0.00 z 0.00 z 1804.58
1902 20.50 5.00 0.00 z 27.00 137.50 370.18 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 560.18
1903 0.00 z 0.00 z 15.00 38.00 196.00 529.50 504.50 513.00 283.50 111.50 46.00 0.00 2237.00
1904 0.00 0.00 4.50 153.50 0.00 z 369.00 583.00 680.00 440.50 155.00 29.50 0.00 2415.00
1905 0.00 12.50 39.50 100.00 159.00 363.50 687.50 577.50 366.50 67.00 3.00 0.00 2376.00
1906 4.00 2.00 23.50 164.50 195.00 322.50 833.50 594.00 0.00 z 0.00 z 0.00 z 0.00 z 2139.00
1907 0.00 z 0.00 z 0.00 z 0.00 z 251.00 320.50 559.50 425.50 285.00 187.00 6.21 a 0.00 2034.71
1908 0.00 0.00 d 8.04 d 88.80 e 155.53 b 340.86 a 694.50 615.23 e 400.50 110.00 53.00 0.00 2466.46
1909 0.00 8.00 2.50 8.50 157.50 397.00 524.00 552.50 372.50 109.00 39.00 0.00 2170.50
1910 0.00 0.00 64.00 0.00 z 318.00 378.00 638.00 589.00 364.00 236.00 23.50 0.00 2610.50
1911 0.00 0.00 47.50 67.50 132.00 385.71 b 666.00 520.50 216.50 98.50 0.00 0.00 2134.21
1912 1.50 0.00 4.50 46.00 237.50 408.50 556.50 477.00 242.50 34.00 14.00 0.00 2022.00
1913 0.00 3.50 0.00 82.50 249.00 382.00 584.00 652.00 352.00 54.50 6.50 0.00 2366.00
1914 11.50 2.00 14.00 64.00 247.50 339.00 728.00 632.50 269.50 67.00 15.50 0.00 2390.50
1915 0.00 1.50 27.50 140.50 230.00 413.50 613.50 780.00 288.50 89.00 14.50 9.00 2607.50
1916 0.00 0.00 27.50 69.31 a 149.12 b 397.50 589.00 672.00 370.50 98.50 1.50 0.00 2374.93
1917 0.00 1.00 0.00 21.50 211.00 380.50 738.50 776.50 361.50 f 228.00 30.00 33.50 2420.50
1918 9.00 4.00 39.50 111.00 173.00 603.00 690.00 559.50 516.00 225.00 0.00 7.00 2937.00
1919 10.50 0.00 29.50 115.00 235.50 364.00 722.50 709.00 342.50 81.00 15.00 0.00 2624.50
1920 0.00 0.00 4.50 31.00 150.00 378.50 742.50 671.15 a 334.50 123.00 10.00 5.50 2450.65
1921 0.00 8.50 7.50 59.00 259.50 523.00 620.00 641.00 227.00 192.72 a 13.50 14.50 2566.22
1922 0.00 0.00 4.00 28.00 230.00 655.00 791.50 603.00 467.00 158.50 0.00 6.20 a 2943.20
1923 0.00 0.00 43.00 80.50 209.00 319.50 637.50 563.00 368.00 89.50 0.00 0.00 2310.00
1924 6.00 8.50 0.00 60.00 403.50 434.00 560.50 503.50 333.00 89.00 1.50 16.00 2415.50
1925 0.50 2.00 2.00 129.50 295.50 473.50 738.00 547.50 313.00 40.50 0.00 0.00 2542.00
1926 0.00 0.50 28.00 222.00 238.00 521.50 693.50 625.00 199.50 112.00 4.00 6.00 2650.00
1927 0.00 0.00 1.50 74.00 110.00 428.00 631.50 595.50 221.00 116.00 24.50 1.00 2203.00
1928 0.00 0.00 20.00 51.00 389.50 412.50 698.00 553.50 328.00 108.00 5.50 0.00 2566.00
1929 0.00 0.00 10.00 28.50 302.50 391.50 j 568.50 672.50 267.00 119.50 0.00 0.00 1968.50
1930 0.00 31.00 22.50 157.50 168.00 349.00 638.00 676.50 357.50 48.00 5.50 0.00 2453.50
1931 4.65 a 1.00 7.00 73.00 310.00 423.50 660.00 617.50 284.50 57.50 3.50 0.00 2442.15
1932 0.00 24.00 13.50 87.50 195.50 439.50 548.00 551.50 355.50 147.00 24.50 3.00 2389.50
1933 0.00 0.00 1.00 98.00 114.00 387.50 633.00 623.00 256.50 195.50 17.50 24.00 2350.00
1934 1.50 1.00 54.00 243.50 329.00 454.00 632.00 672.50 321.00 149.50 8.50 0.00 2866.50
1935 9.00 0.00 5.00 44.50 217.50 431.00 615.00 584.50 462.00 227.50 0.00 0.00 2596.00
1936 0.00 0.00 10.50 217.50 396.00 489.50 649.50 625.00 332.00 156.50 0.00 1.50 2878.00
1937 0.00 0.00 4.50 35.00 264.50 449.50 717.50 522.50 407.50 172.00 16.00 6.50 2595.50
1938 0.00 0.00 6.00 76.50 235.00 487.50 718.00 528.50 517.50 132.50 0.50 3.50 2705.50
1939 4.00 0.00 68.00 112.50 272.00 343.50 671.50 656.50 404.50 129.00 12.50 10.50 2684.50
1940 0.00 0.00 34.00 58.50 346.00 545.00 644.50 617.50 437.50 179.50 0.00 0.00 2862.50
1941 0.00 6.50 48.50 125.00 191.00 348.50 731.50 610.00 241.00 44.00 17.00 5.50 2368.50
1942 0.00 0.00 30.00 103.00 168.50 318.00 680.50 698.50 424.50 152.00 5.50 0.00 2580.50
1943 0.00 a 0.00 13.50 131.00 145.50 313.50 658.50 556.00 450.50 180.50 1.00 1.00 2451.00
1944 0.00 0.00 18.50 93.50 250.00 396.50 653.07 a 604.50 458.00 199.50 12.00 7.00 2692.57
1945 5.00 3.50 1.50 45.50 245.50 353.00 691.00 665.00 285.00 190.50 12.00 1.50 2499.00
1946 0.00 3.00 11.50 108.50 239.00 352.00 627.50 625.00 313.00 36.50 7.24 a 5.00 2328.24
1947 0.00 5.00 48.50 121.00 386.50 360.50 612.50 550.00 410.00 143.50 7.50 0.00 2645.00
1948 0.00 3.00 3.00 46.00 169.50 495.50 523.50 504.50 320.50 72.00 4.50 0.00 2142.00
1949 0.00 0.00 8.50 129.00 353.00 354.00 578.00 560.50 378.00 33.07 a 21.50 0.00 2415.57
1950 0.00 a 3.50 2.00 23.00 180.00 372.00 630.50 644.50 404.00 113.50 5.50 4.50 2383.00
1951 0.00 2.00 0.00 39.50 225.50 322.50 630.50 561.00 335.50 85.50 0.00 0.00 2202.00
1952 0.00 0.00 12.50 137.50 241.00 357.50 615.00 582.00 414.00 174.00 0.00 0.00 2533.50
1953 22.00 1.00 27.50 49.50 139.50 246.00 580.00 574.00 394.50 100.50 10.00 0.00 2144.50
1954 0.00 0.00 8.50 24.50 225.00 273.50 547.50 446.50 287.00 51.00 19.00 0.00 1882.50
1955 0.00 0.00 0.00 10.50 109.00 410.00 534.00 528.50 301.50 82.50 12.00 1.00 1989.00
1956 0.50 0.00 5.50 110.50 283.50 332.00 648.00 548.00 326.50 67.00 0.50 2.50 2324.50
1957 0.00 5.00 2.50 66.50 286.00 417.00 545.50 462.00 371.50 37.50 0.00 0.00 2193.50
1958 0.00 25.50 0.00 27.00 405.50 521.00 781.50 774.50 349.50 150.00 20.00 4.50 3059.00
1959 3.00 0.00 7.50 72.00 133.00 404.00 672.50 514.60 a 289.50 93.50 14.00 1.50 2205.10
1960 0.00 0.00 60.00 76.00 145.00 395.00 776.00 512.00 345.50 137.50 2.50 0.00 2449.50
1961 5.00 7.00 9.00 49.50 211.00 587.00 738.00 778.50 244.50 99.00 0.00 0.00 2728.50
1962 0.00 0.00 0.00 100.50 91.50 340.00 566.50 505.50 365.00 66.00 4.00 0.00 2039.00
1963 0.00 12.50 19.50 30.00 226.50 389.00 529.50 631.00 498.50 215.00 6.50 0.00 2558.00
1964 0.00 0.00 15.50 23.50 176.00 373.00 635.00 479.00 271.50 75.00 5.50 2.50 2056.50
1965 0.00 1.00 3.50 114.50 189.50 392.50 664.00 639.00 256.50 193.00 24.00 2.00 2479.50
1966 2.50 0.50 34.50 64.00 287.50 336.50 576.50 611.50 452.00 111.00 3.50 1.50 2481.50
1967 0.52 a 0.00 10.50 3.50 201.00 489.00 721.50 778.50 543.00 132.00 9.00 1.00 2889.52
1968 5.00 8.00 30.50 45.00 230.50 422.50 739.50 527.00 389.00 48.00 2.50 0.50 2448.00
1969 0.00 0.00 25.50 65.00 319.00 535.00 605.50 558.50 409.00 43.00 10.50 6.00 2577.00
1970 0.00 i 0.00 3.50 8.50 226.82 a 540.00 735.00 671.50 226.50 86.50 3.50 6.00 2507.82
1971 13.50 9.00 0.00 32.50 263.00 232.50 648.00 776.50 225.00 117.00 3.00 0.00 2320.00
1972 0.00 z 0.00 34.50 37.00 280.00 434.00 617.50 718.50 305.00 88.00 7.00 6.50 2528.00
1973 2.50 2.50 2.50 54.50 290.50 0.00 z 688.31 d 588.00 353.00 86.00 9.00 2.00 2078.81
1974 8.00 0.00 14.00 56.50 144.50 495.00 634.00 660.50 438.00 0.00 z 10.50 0.00 2461.00
1975 0.00 a 0.00 1.50 10.00 187.00 331.50 748.50 510.50 401.00 120.00 27.00 9.00 2346.00
1976 0.00 0.00 5.50 63.00 229.00 324.00 630.50 530.00 466.00 123.00 7.00 0.00 2378.00
1977 0.00 1.00 5.50 157.00 116.50 550.50 604.00 742.50 268.00 57.00 1.50 0.50 2504.00
1978 0.00 0.00 37.00 42.00 150.50 461.00 637.00 573.50 295.50 105.50 9.00 0.00 2311.00
1979 0.00 1.00 21.50 70.00 253.50 477.50 688.00 663.50 461.79 b 189.74 b 0.00 0.00 2826.53
1980 0.00 4.00 0.00 148.97 a 206.00 285.52 a 664.50 535.86 c 369.50 117.50 18.50 15.00 2365.34
1981 2.50 4.50 11.00 86.00 205.50 274.50 596.20 c 743.00 399.50 69.00 21.00 0.00 2412.70
1982 0.00 8.00 5.50 43.00 208.00 507.50 631.50 640.00 332.50 77.00 0.50 3.50 2457.00
1983 4.00 14.00 7.00 76.00 286.00 374.50 543.50 718.50 266.50 66.50 26.00 0.00 2382.50
1984 2.50 0.00 8.50 39.50 145.00 312.00 659.00 677.00 300.00 105.00 9.00 0.00 2257.50
1985 0.00 a 0.00 0.50 121.00 287.00 413.00 804.50 521.50 177.50 57.50 11.00 0.00 2393.50
1986 3.50 15.50 37.50 47.50 250.50 563.50 511.00 766.00 225.00 106.00 8.00 0.00 2534.00
1987 0.00 0.00 34.00 181.50 318.50 506.00 595.50 577.00 465.00 126.00 8.00 4.00 2815.50
1988 0.00 0.00 3.00 111.00 238.00 402.50 641.50 617.50 350.50 260.00 27.00 1.00 2652.00
1989 0.00 0.00 14.50 124.50 197.50 495.50 626.00 568.50 391.50 103.00 24.50 2.00 2547.50
1990 2.50 0.00 18.50 145.50 174.00 399.50 726.50 654.50 508.50 72.50 25.50 0.00 2727.50
1991 0.50 5.50 5.00 55.50 122.50 296.50 625.50 713.00 435.00 153.50 0.00 1.00 2413.50
1992 10.00 4.50 30.00 143.00 360.00 573.50 607.50 646.00 279.00 119.50 2.00 0.00 2775.00
1993 0.00 0.00 13.00 60.00 364.50 388.00 451.50 540.00 382.50 148.50 6.00 1.00 2355.00
1994 0.00 6.50 46.00 126.00 294.00 407.50 717.00 638.00 450.50 65.00 0.50 6.00 2757.00
1995 4.50 29.00 13.50 47.50 243.00 368.00 650.00 509.50 446.50 55.50 24.50 5.00 2396.50
1996 4.50 2.00 6.00 97.50 128.50 393.50 723.00 645.50 291.50 136.50 0.00 0.00 2428.50
1997 0.00 6.00 35.50 51.00 330.00 400.00 607.00 703.50 433.50 96.00 8.50 0.00 2671.00
1998 0.00 1.00 28.00 87.00 205.00 453.50 822.50 695.50 525.00 85.50 2.50 3.50 2909.00
1999 0.50 0.00 32.50 64.00 181.00 403.00 599.00 709.00 344.00 88.50 41.50 1.50 2464.50
2000 0.00 1.00 4.50 130.86 a 273.50 418.00 639.00 534.50 330.50 79.50 0.00 0.00 2411.36
2001 0.00 0.00 21.50 90.50 304.00 373.00 634.00 714.50 472.50 69.00 16.50 0.00 2695.50
2002 5.00 7.50 0.00 63.00 216.00 483.50 741.00 579.50 363.50 61.00 12.00 10.50 2542.50
2003 8.50 0.00 50.00 77.00 240.00 502.50 766.50 677.50 441.00 221.50 3.50 0.00 2988.00
2004 0.00 0.00 51.50 105.50 232.50 468.00 714.00 714.00 326.50 136.50 3.00 7.50 2759.00
2005 5.50 0.00 28.00 85.00 303.00 370.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 792.00
2006 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 0.00 z 0.00 z 0.00
2007 1.00 3.50 39.50 5.50 h 78.00 l 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 z 44.00
2008 0.00 z 0.00 0.00 z 15.00 e 58.90 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 15.00 0.00 88.90
2009 0.00 0.00 3.50 63.50 238.50 412.50 704.22 a 648.00 397.50 23.50 12.00 0.00 2503.22
2010 0.00 0.00 8.00 58.50 124.50 332.00 618.00 591.50 325.50 117.00 14.00 3.00 2192.00
2011 6.50 0.50 1.00 5.69 a 97.50 271.80 e 536.00 634.50 322.00 i 102.50 6.00 0.00 1661.99
2012 0.00 0.00 4.50 95.00 187.50 310.00 657.00 663.00 363.50 91.00 72.50 0.00 a 2444.00
2013 0.00 c 0.00 16.05 c 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 16.05
Period of Record Statistics
MEAN 2.01 3.06 17.04 79.70 226.45 403.83 645.55 613.65 352.19 111.59 11.10 2.73 2485.93
S.D. 3.91 5.97 16.58 48.78 75.77 83.41 74.66 84.65 81.98 52.50 12.22 4.98 236.38
SKEW 2.84 2.88 1.04 0.79 0.32 0.46 0.15 -0.07 0.09 0.69 1.99 3.34 0.08
MAX 22.00 31.00 68.00 243.50 405.50 655.00 833.50 780.00 543.00 260.00 72.50 33.50 3059.00
MIN 0.00 0.00 0.00 3.50 58.90 232.50 451.50 363.00 156.00 23.50 0.00 0.00 1882.50
NO YRS 112 115 114 113 114 113 111 112 110 110 113 112 95