POMEROY, WASHINGTON

Monthly Total Growing Degree Days

(456610)

Base Temperature = 50 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
1891 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 144.00 h 0.00 z 0.00 0.00
1892 0.50 0.00 z 37.00 14.50 0.00 z 453.00 635.50 727.00 520.00 260.50 0.00 z 0.00 z 2648.00
1893 0.00 z 0.00 z 0.00 z 18.50 0.00 z 331.50 648.50 0.00 z 360.00 24.00 24.50 0.00 g 1407.00
1894 0.00 0.00 22.50 101.50 306.00 389.50 0.00 z 694.50 291.00 0.00 z 0.00 z 0.00 z 1805.00
1895 0.00 z 0.00 z 0.00 z 0.00 z 201.50 0.00 z 626.50 684.50 0.00 z 302.50 31.50 0.00 1846.50
1896 0.00 z 0.00 z 47.00 0.00 z 165.00 578.50 957.00 756.50 405.00 205.12 a 18.50 10.33 a 3142.95
1897 0.50 0.00 0.00 z 196.00 0.00 z 440.50 652.00 895.50 367.00 159.00 0.00 z 0.50 2711.00
1898 0.00 z 0.00 z 0.00 146.00 261.00 511.00 780.00 927.50 500.50 60.00 4.00 14.00 3204.00
1899 0.00 0.00 a 0.50 67.00 193.50 489.50 957.50 542.00 581.00 109.00 25.50 8.50 2974.00
1900 3.50 0.00 86.50 149.50 311.00 583.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1134.00
1901 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 769.00 222.93 a 273.00 21.00 0.00 1285.93
1902 6.50 11.50 4.13 a 43.50 239.50 388.00 554.00 575.00 379.00 174.00 1.50 0.00 2376.63
1903 2.00 0.00 30.00 56.50 212.50 564.50 562.00 606.50 261.00 142.50 34.50 1.00 2473.00
1904 0.00 0.00 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 0.00
1905 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
1906 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
1907 0.00 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 0.00 z 0.00
1908 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
1909 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
1910 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
1911 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
1912 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
1913 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
1914 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
1915 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
1916 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
1917 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
1918 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
1919 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
1920 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
1921 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
1922 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
1923 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 1.50 0.00 1.50
1924 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
1925 0.00 z 0.00 z 0.00 z 0.00 z 310.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 310.00
1926 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
1927 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
1928 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 754.50 394.50 l 0.00 z 0.00 z 0.00 z 0.00 z 754.50
1929 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 256.00 s 261.50 186.00 1.00 3.50 452.00
1930 0.00 21.00 21.50 122.00 163.27 a 351.00 671.50 640.00 370.50 43.00 0.00 z 0.00 z 2403.77
1931 0.00 z 0.00 7.50 66.50 289.00 401.50 621.00 587.00 279.31 a 59.00 13.00 0.00 2323.81
1932 0.00 22.27 a 9.50 90.00 183.42 a 429.50 517.00 0.00 z 324.50 119.00 18.50 3.50 1717.18
1933 0.00 0.00 0.00 b 74.00 101.02 b 385.50 580.00 0.00 z 0.00 z 140.02 a 27.93 a 15.50 1323.96
1934 0.00 5.25 d 36.00 i 198.00 320.52 c 366.67 c 565.75 a 557.00 261.43 b 143.52 d 21.96 b 0.00 2440.10
1935 3.50 0.00 6.00 37.00 176.00 374.50 560.50 488.00 390.00 127.00 0.00 0.00 2162.50
1936 0.00 1.00 5.50 169.50 339.00 416.00 616.00 537.50 273.00 134.50 0.00 0.00 2492.00
1937 0.00 0.00 9.00 27.00 226.50 369.00 631.50 465.50 348.50 154.50 7.00 0.00 2238.50
1938 0.00 0.00 6.50 60.00 197.50 441.50 660.00 487.50 509.50 127.00 0.00 3.50 2493.00
1939 3.00 0.00 52.00 100.00 266.50 319.00 602.50 585.00 376.50 92.00 4.50 18.00 2419.00
1940 0.00 0.00 34.50 71.90 a 299.00 496.50 631.00 551.00 428.00 152.00 0.00 0.00 2663.90
1941 0.00 5.50 39.00 95.50 197.00 329.50 657.00 552.50 196.00 52.00 18.00 4.00 2146.00
1942 0.00 0.00 19.50 88.00 153.50 240.50 598.50 600.00 332.00 121.50 2.50 0.00 2156.00
1943 0.00 b 0.00 26.00 122.59 a 138.50 270.00 611.50 506.00 408.00 182.38 a 4.00 1.00 2269.97
1944 0.00 0.00 17.50 75.52 a 205.00 370.50 639.50 536.00 439.00 222.50 6.50 0.00 2512.02
1945 1.00 1.00 0.50 45.00 192.72 a 276.72 a 636.50 550.50 179.48 a 164.50 6.50 0.00 2054.42
1946 0.00 3.00 59.86 b 69.50 159.00 258.50 604.50 a 613.28 a 325.00 40.50 0.00 5.00 2138.15
1947 0.00 0.00 39.50 106.50 398.00 344.00 649.50 441.00 f 391.00 124.00 0.00 0.00 d 2052.50
1948 0.00 a 4.50 2.21 c 55.50 166.00 494.50 504.00 540.50 346.00 102.00 1.50 0.00 2216.71
1949 0.00 g 0.00 8.00 148.00 343.50 424.00 632.00 603.00 385.00 36.00 17.50 0.00 2597.00
1950 0.00 1.00 1.50 24.44 c 165.00 358.50 632.00 603.50 386.50 89.50 2.00 4.00 2267.94
1951 0.00 2.50 0.50 57.50 202.50 332.00 628.00 568.50 361.50 114.50 0.00 2.00 2269.50
1952 0.00 0.00 13.00 135.00 258.69 b 0.00 z 631.00 588.00 437.00 202.50 1.00 0.00 2266.19
1953 10.50 2.00 16.50 83.50 162.50 241.50 574.50 587.00 407.00 153.50 23.50 0.00 2262.00
1954 0.00 4.00 1.00 26.50 237.00 253.00 542.00 486.50 313.50 88.00 10.50 0.00 1962.00
1955 0.00 0.00 0.00 16.00 104.00 438.00 546.50 585.00 325.86 a 102.00 1.00 1.00 2119.36
1956 0.00 0.00 b 4.00 112.50 275.00 321.50 647.00 563.00 368.00 72.00 0.00 0.00 2363.00
1957 0.00 3.63 a 0.00 46.00 234.00 423.00 550.50 466.50 411.00 46.00 0.00 0.00 2180.63
1958 0.00 b 26.50 0.00 19.50 387.50 a 479.00 683.50 709.00 319.00 142.50 24.50 2.58 a 2793.58
1959 1.50 0.00 2.50 n 69.50 99.20 a 358.97 a 591.58 a 435.00 234.50 58.50 8.50 0.00 a 1857.25
1960 0.00 0.00 a 28.00 39.50 m 58.00 q 360.00 742.50 489.00 328.00 114.00 1.50 0.00 2063.00
1961 0.00 0.00 2.38 e 41.50 172.57 a 536.50 660.00 723.50 199.50 83.50 0.00 0.00 a 2419.45
1962 0.00 0.00 0.00 117.00 85.00 323.50 555.50 494.50 335.00 65.50 6.00 0.00 1982.00
1963 0.00 8.00 15.50 32.00 198.50 390.00 479.00 569.00 495.50 189.50 8.50 0.00 2385.50
1964 0.50 0.00 17.50 20.00 154.50 347.50 605.50 454.50 216.50 73.00 12.00 3.00 1904.50
1965 0.00 0.00 z 0.00 z 125.50 212.00 399.31 a 687.68 a 648.50 243.50 200.50 22.20 e 3.00 2542.19
1966 0.00 0.00 31.00 71.50 299.00 357.50 573.50 500.00 f 490.38 d 93.60 e 0.58 d 0.00 1917.06
1967 3.00 0.00 9.50 1.00 191.50 526.61 b 714.50 807.00 579.00 128.00 0.00 h 0.00 2960.11
1968 0.00 12.00 37.00 58.00 270.50 441.50 733.00 548.50 381.50 67.00 0.52 a 1.50 2551.02
1969 0.00 0.00 23.50 63.50 310.00 547.50 599.00 571.50 446.50 74.29 b 9.50 0.00 2645.29
1970 0.00 0.00 1.00 3.00 254.50 568.00 745.00 686.59 d 189.00 g 50.50 g 1.50 1.50 2261.09
1971 1.00 10.00 4.50 39.50 265.00 234.00 g 726.71 e 790.50 261.43 b 113.50 k 6.50 l 1.00 j 2098.64
1972 2.00 j 8.50 36.50 50.50 293.47 a 452.00 640.00 699.05 a 258.50 89.50 1.00 7.00 2536.02
1973 0.00 3.50 8.50 55.00 295.50 460.50 707.50 652.00 401.00 50.00 i 8.00 1.03 a 2592.53
1974 6.95 b 0.00 14.00 58.00 127.58 e 539.00 0.00 z 619.50 431.50 115.50 14.50 0.00 a 1926.53
1975 0.00 a 0.00 0.00 c 10.50 202.03 b 338.28 a 796.00 537.50 402.69 d 156.00 51.92 d 0.00 a 2494.93
1976 1.50 g 0.00 4.00 63.50 261.00 334.00 677.50 549.00 511.00 135.00 8.00 0.00 i 2543.00
1977 0.00 12.50 10.50 216.50 133.00 571.50 644.50 746.50 289.00 103.50 14.50 5.50 2747.50
1978 0.00 d 1.50 72.00 60.00 180.32 a 519.00 697.00 607.00 353.50 128.50 14.00 0.00 2632.82
1979 0.00 0.50 11.00 63.50 285.00 487.50 712.50 678.38 a 512.00 199.50 0.00 1.03 a 2950.92
1980 0.00 4.14 a 1.00 181.50 217.50 316.50 660.00 494.00 417.00 135.50 21.00 27.00 2475.14
1981 2.50 4.50 13.50 111.00 201.50 341.50 607.00 755.00 405.00 82.67 a 11.90 a 0.50 2536.56
1982 0.00 16.50 10.00 51.00 214.00 513.50 617.50 680.00 375.00 99.50 1.50 0.00 2578.50
1983 3.00 4.50 13.00 57.50 292.00 408.00 591.00 752.00 311.00 88.00 18.00 0.00 2538.00
1984 4.50 0.00 10.00 33.00 160.50 369.00 693.00 701.00 334.50 113.15 a 0.00 0.00 2418.65
1985 0.00 b 5.50 j 3.88 c 86.00 180.50 510.00 859.00 651.50 234.00 82.00 0.00 l 0.00 l 2606.88
1986 0.00 j 13.50 53.22 a 69.00 325.00 613.00 577.00 796.00 267.50 113.50 1.50 o 0.00 2827.72
1987 0.00 0.50 32.50 212.00 345.50 455.50 572.98 a 396.50 k 471.00 105.50 o 0.00 n 0.00 z 2089.98
1988 0.00 p 0.00 i 2.50 104.50 272.00 402.00 622.00 554.50 351.00 227.00 16.50 0.00 2552.00
1989 0.00 0.00 7.00 112.00 146.50 474.00 641.50 569.00 417.50 130.50 45.50 3.00 2546.50
1990 6.00 4.50 30.00 207.50 232.50 477.00 797.50 664.00 469.00 77.00 23.00 0.00 2988.00
1991 0.50 6.50 0.00 a 82.50 189.00 219.00 j 680.00 506.00 k 328.50 j 153.50 5.50 0.00 m 1117.50
1992 10.00 i 1.00 j 15.50 i 112.00 k 176.50 m 572.00 602.50 674.50 356.90 a 111.00 i 0.00 i 0.00 c 2205.90
1993 0.00 p 1.50 i 6.50 44.00 411.00 419.00 439.00 463.50 314.50 135.50 1.00 0.00 a 2234.00
1994 0.00 4.50 51.50 132.86 b 266.00 400.00 668.50 621.50 428.00 61.00 0.00 c 1.00 2634.86
1995 0.00 7.50 10.00 36.50 186.00 307.00 561.00 450.50 372.50 35.50 28.50 0.00 1995.00
1996 2.00 0.00 z 0.00 79.50 101.50 337.00 613.50 607.00 218.50 112.50 0.00 0.00 2071.50
1997 0.00 2.00 21.00 0.00 z 230.50 316.00 551.50 646.50 384.83 a 100.00 2.00 0.00 2254.33
1998 0.00 0.00 14.00 80.50 151.50 334.50 733.00 642.50 449.50 48.50 4.50 0.00 a 2458.50
1999 0.00 0.00 10.50 30.50 111.50 293.65 d 538.00 615.00 245.50 50.50 38.79 a 0.00 b 1933.95
2000 0.00 a 0.00 3.50 78.50 185.50 330.00 c 524.50 494.45 a 261.50 30.00 0.00 0.00 1907.95
2001 0.00 a 0.00 15.00 61.00 222.50 263.28 a 526.00 579.50 380.00 c 34.62 a 12.50 0.00 e 2094.39
2002 0.50 0.50 0.00 27.50 145.00 364.50 618.00 470.00 279.00 26.50 6.00 2.50 1940.00
2003 0.00 0.00 25.00 47.00 177.50 406.50 668.00 474.50 f 401.50 179.00 0.00 a 0.00 1904.50
2004 0.00 0.00 z 25.50 52.50 153.50 373.00 613.50 590.00 226.20 e 80.50 2.00 6.00 2122.70
2005 0.00 0.00 2.00 36.00 194.50 271.50 563.50 552.66 b 143.40 e 63.50 0.00 a 0.00 a 1827.06
2006 0.00 0.50 2.00 25.50 190.50 362.00 689.50 515.78 b 250.80 e 39.50 32.00 0.00 2108.08
2007 0.00 0.00 16.00 33.50 168.50 328.50 653.21 c 451.16 c 218.08 d 70.00 0.00 3.00 1941.95
2008 0.00 0.00 0.50 25.00 174.63 a 271.00 547.00 541.39 c 273.21 b 79.00 14.50 0.00 a 1926.24
2009 1.00 0.00 b 1.00 28.00 151.90 a 357.00 587.45 a 570.00 274.00 h 18.27 c 4.50 0.00 1719.12
2010 0.00 0.00 6.00 0.00 z 81.00 0.00 z 0.00 z 0.00 z 262.50 93.50 7.00 4.50 454.50
2011 7.00 0.00 4.50 2.07 a 73.50 220.00 c 407.81 b 540.95 a 365.00 66.00 3.00 0.00 1689.83
2012 0.00 b 0.00 c 0.00 73.00 136.50 272.07 a 573.50 536.50 302.68 b 52.50 27.93 a 2.00 1976.68
2013 0.00 0.00 5.17 a 3.50 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 5.17
Period of Record Statistics
MEAN 0.83 2.87 15.35 74.50 214.68 398.56 633.39 602.62 351.09 112.32 10.29 1.94 2319.14
S.D. 1.95 5.40 17.67 50.69 74.19 93.68 90.36 102.20 92.85 58.99 11.77 4.33 307.39
SKEW 2.87 2.48 1.68 1.07 0.45 0.34 0.97 0.79 0.18 0.81 1.30 3.54 0.19
MAX 10.50 26.50 86.50 216.50 411.00 613.00 957.50 927.50 581.00 302.50 51.92 27.00 2988.00
MIN 0.00 0.00 0.00 1.00 73.50 220.00 407.81 435.00 143.40 18.27 0.00 0.00 1689.83
NO YRS 85 84 88 88 90 89 91 85 90 89 86 88 54