YAKIMA AIR TERMINAL, WASHINGTON

Monthly Total Growing Degree Days

(459465)

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
1946 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 262.20 e 25.00 0.00 1.50 288.70
1947 0.00 2.50 49.00 140.50 463.50 423.00 632.00 534.50 384.00 92.00 0.00 0.00 2721.00
1948 0.00 4.50 2.50 53.50 232.50 628.00 622.00 584.50 358.50 93.00 0.00 0.00 a 2579.00
1949 0.00 0.00 2.00 99.50 398.00 456.50 607.50 579.50 389.50 27.00 3.50 0.00 2563.00
1950 0.00 0.00 1.00 10.50 219.00 438.00 686.00 633.00 359.50 43.50 0.00 0.00 2390.50
1951 0.00 0.50 0.00 69.00 228.00 487.00 652.00 585.50 353.00 78.00 0.00 0.00 2453.00
1952 0.00 0.00 7.50 106.50 285.00 382.50 639.00 565.00 412.50 198.00 0.00 0.00 2596.00
1953 1.50 0.00 1.50 54.00 173.00 260.50 600.50 565.00 349.00 83.00 4.50 0.00 2092.50
1954 0.00 0.00 0.00 28.50 250.00 291.00 513.50 476.00 290.50 31.50 0.50 0.00 1881.50
1955 0.00 0.00 0.00 12.00 140.50 461.00 539.00 555.00 309.50 54.00 5.00 0.00 2076.00
1956 0.00 0.00 0.00 136.00 354.50 337.50 706.00 614.00 330.50 62.50 1.00 0.00 2542.00
1957 0.00 0.00 1.50 71.50 384.50 467.00 523.00 464.50 368.50 35.50 0.00 0.00 2316.00
1958 0.00 2.50 0.00 14.50 435.00 578.00 774.00 673.50 282.50 87.50 1.00 0.00 2848.50
1959 0.00 0.00 0.00 70.00 129.50 404.50 656.50 488.50 251.00 69.50 9.50 1.00 2080.00
1960 0.00 0.00 37.00 80.00 151.50 444.00 780.50 497.50 317.50 91.50 0.00 0.00 2399.50
1961 0.50 0.00 13.50 57.50 203.50 549.50 714.00 730.00 249.00 69.00 0.00 0.00 2586.50
1962 0.00 0.00 0.00 95.50 134.50 398.50 611.00 496.50 352.50 44.50 2.50 0.00 2135.50
1963 0.00 0.00 6.50 22.50 263.50 433.00 529.00 594.50 464.50 130.50 0.00 0.00 2444.00
1964 0.00 0.00 7.00 6.00 146.50 359.50 557.00 397.50 213.00 51.50 0.00 0.00 1738.00
1965 0.00 0.00 5.00 80.00 226.00 434.00 620.50 569.00 246.00 101.00 1.00 0.00 2282.50
1966 0.00 0.00 23.00 96.00 263.50 341.00 543.00 655.50 494.00 96.00 1.00 0.00 2513.00
1967 2.50 0.00 0.00 0.00 237.50 532.50 661.50 722.50 469.00 92.00 0.00 0.00 2717.50
1968 0.00 1.50 10.50 39.50 216.00 415.50 646.50 474.00 329.50 8.50 0.00 0.00 2141.50
1969 0.00 0.00 7.50 28.50 312.00 566.00 570.50 502.00 333.50 21.50 0.50 0.00 2342.00
1970 0.00 0.00 1.50 14.00 276.00 564.00 697.00 622.00 232.50 68.50 0.00 0.00 2475.50
1971 2.50 0.00 0.00 36.00 332.50 320.00 660.50 691.50 172.50 88.50 0.00 0.00 2304.00
1972 0.00 4.50 12.50 19.50 309.00 468.00 617.50 669.50 233.50 64.50 0.00 0.00 2398.50
1973 0.00 0.00 1.00 97.50 267.00 430.50 686.50 597.50 355.00 35.00 1.00 0.00 2471.00
1974 0.00 0.00 3.00 52.00 164.50 546.50 565.00 641.50 389.50 45.00 0.00 0.00 2407.00
1975 0.00 0.00 0.00 20.50 247.00 414.50 773.00 506.50 362.00 70.00 7.50 10.50 2411.50
1976 0.00 0.00 0.00 42.00 197.00 304.50 587.50 505.50 430.00 85.50 2.00 0.00 2154.00
1977 0.00 1.00 3.00 168.00 113.00 561.50 584.00 751.50 231.50 29.50 2.50 5.00 2450.50
1978 0.00 0.00 39.50 51.50 160.00 443.50 650.00 540.00 263.50 76.50 0.00 0.00 2224.50
1979 0.00 0.00 4.50 73.00 296.00 462.50 684.50 625.00 420.50 139.50 0.00 0.00 2705.50
1980 0.00 0.00 4.50 145.50 277.00 363.50 632.00 508.00 377.50 122.50 5.50 3.50 2439.50
1981 0.00 1.50 26.50 100.00 221.50 353.50 586.50 714.00 350.50 36.00 2.00 0.00 2392.00
1982 0.00 10.00 1.00 20.50 195.00 504.00 579.00 558.50 305.00 56.50 0.00 0.00 2229.50
1983 0.00 2.50 15.00 70.00 341.00 387.00 545.00 645.50 256.00 63.50 11.00 0.00 2336.50
1984 0.00 0.00 2.50 13.50 107.50 333.50 636.00 581.50 275.50 85.50 0.00 0.00 2035.50
1985 0.00 0.00 0.00 92.50 291.00 436.50 769.00 495.00 172.00 22.50 7.00 0.00 2285.50
1986 0.00 9.50 15.00 34.50 252.50 521.00 485.50 700.00 218.00 73.00 0.50 0.00 2309.50
1987 0.00 0.00 5.50 137.50 306.00 477.50 552.50 571.50 386.00 79.50 2.50 0.00 2518.50
1988 0.00 2.00 2.00 104.00 186.50 364.00 595.00 548.00 290.00 203.50 0.00 0.00 2295.00
1989 0.00 0.00 0.50 100.50 199.00 472.50 576.50 522.00 329.00 64.00 23.00 0.00 2287.00
1990 0.00 5.50 21.00 119.00 159.00 409.00 718.50 622.00 461.50 35.00 27.00 0.00 2577.50
1991 0.00 0.00 3.00 59.50 158.00 303.00 637.50 659.50 412.50 92.00 0.00 0.00 2325.00
1992 0.00 0.00 24.00 101.50 336.00 598.50 603.00 621.50 274.50 113.00 0.00 0.00 2672.00
1993 0.00 0.00 0.00 29.00 359.50 360.50 403.00 514.50 327.50 105.50 0.00 0.00 2099.50
1994 0.00 0.00 17.50 112.50 304.50 369.50 738.50 600.00 431.00 57.00 0.00 0.00 2630.50
1995 0.00 2.00 1.50 33.50 281.50 381.00 605.50 451.50 409.00 45.00 13.00 0.00 2223.50
1996 0.00 0.00 1.00 71.50 134.50 391.00 701.50 579.00 232.50 82.50 0.00 0.00 2193.50
1997 0.00 0.00 9.00 28.50 307.00 382.50 594.00 666.00 373.00 45.00 2.00 0.00 2407.00
1998 0.00 0.00 8.00 69.50 260.00 451.50 809.00 669.50 457.50 34.50 5.50 0.00 2765.00
1999 0.00 1.50 3.50 49.50 163.50 381.00 535.50 636.50 287.50 28.00 13.50 0.00 2100.00
2000 0.00 0.00 0.00 93.50 230.00 444.00 601.50 563.00 300.50 45.50 0.00 0.00 2278.00
2001 0.00 0.00 7.50 59.00 265.00 346.50 649.00 673.50 413.00 55.50 7.00 0.00 2476.00
2002 0.00 4.50 3.00 43.50 187.50 461.50 699.50 547.50 299.00 62.00 2.00 0.00 2310.00
2003 0.00 0.00 28.00 56.50 232.50 535.00 739.50 649.00 412.00 183.00 0.00 0.00 2835.50
2004 0.00 0.00 18.50 85.00 219.00 468.50 707.50 675.00 293.00 106.50 0.00 0.00 2573.00
2005 0.00 0.00 14.00 91.50 315.50 386.00 648.50 647.00 265.00 68.50 0.00 0.00 2436.00
2006 0.00 0.00 2.00 52.00 245.50 461.50 742.00 600.50 350.50 56.50 13.50 0.00 2524.00
2007 0.00 0.00 17.00 65.00 268.50 401.00 787.00 576.00 310.50 31.00 0.00 0.00 2456.00
2008 0.00 0.00 0.00 22.00 318.50 390.50 640.50 580.00 333.00 56.50 6.50 0.00 2347.50
2009 0.00 0.00 0.00 44.00 261.00 521.00 734.00 642.50 372.50 28.50 0.00 0.00 2603.50
2010 0.00 0.00 1.00 67.00 155.00 380.00 674.50 589.50 365.00 93.00 8.50 0.00 2333.50
2011 0.00 0.00 9.50 8.00 150.00 376.50 557.00 695.50 445.50 85.00 0.00 0.00 2327.00
2012 0.00 0.00 0.00 118.00 243.50 387.00 752.50 698.02 a 420.00 115.00 17.00 0.00 2751.02
2013 0.00 0.00 38.00 16.50 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 38.00
Period of Record Statistics
MEAN 0.10 0.84 8.05 64.29 244.57 430.35 638.27 592.56 335.30 71.93 3.13 0.32 2391.12
S.D. 0.46 2.02 11.13 39.45 78.42 79.60 81.96 76.98 75.61 39.50 5.59 1.48 220.85
SKEW 4.59 3.07 1.82 0.44 0.44 0.36 -0.06 -0.14 -0.05 1.27 2.39 5.64 -0.27
MAX 2.50 10.00 49.00 168.00 463.50 628.00 809.00 751.50 494.00 203.50 27.00 10.50 2848.50
MIN 0.00 0.00 0.00 0.00 107.50 260.50 403.00 397.50 172.00 8.50 0.00 0.00 1738.00
NO YRS 67 67 67 66 66 66 66 66 67 67 67 67 66