WHITMAN MISSION, WASHINGTON

Monthly Total Growing Degree Days

(459200)

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
1962 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 370.00 194.50 71.00 635.50
1963 29.50 80.50 210.00 284.50 554.50 774.00 849.00 966.00 806.50 470.00 173.50 18.50 5216.50
1964 64.50 56.00 119.50 284.00 494.50 752.00 958.00 843.20 a 610.50 297.00 74.00 63.00 4616.20
1965 45.00 101.00 107.00 407.00 530.10 a 733.00 990.00 977.00 565.00 456.00 162.86 b 53.22 a 5127.17
1966 52.00 32.00 186.00 333.00 595.50 698.50 889.00 908.50 774.50 389.00 137.07 a 98.50 5093.57
1967 137.43 a 86.50 174.50 196.50 529.00 823.00 1032.00 1075.00 837.50 415.50 113.00 96.50 5516.43
1968 71.00 159.00 240.00 273.00 548.00 768.50 1040.00 873.50 681.50 297.50 86.50 37.50 5076.00
1969 1.50 8.50 166.00 324.00 646.00 875.00 950.50 871.00 712.50 266.50 120.00 41.00 4982.50
1970 18.50 63.50 143.00 210.50 581.00 884.50 1055.00 945.00 540.00 282.00 103.97 a 48.50 4875.47
1971 158.62 a 90.00 104.50 284.00 590.50 662.50 999.00 1045.00 501.50 298.00 114.00 61.00 4908.62
1972 82.00 81.50 244.00 227.00 601.40 a 790.00 950.50 968.50 528.46 d 317.00 86.00 92.50 4968.86
1973 38.50 48.00 217.00 324.00 616.00 762.00 961.00 930.00 659.50 362.00 94.00 79.50 5091.50
1974 121.00 96.50 185.45 c 313.50 496.00 815.00 941.50 941.00 649.00 300.50 151.50 50.50 5061.45
1975 44.50 29.50 90.50 191.50 494.00 678.50 1053.50 833.00 617.00 374.00 131.50 76.50 4614.00
1976 57.50 89.00 139.50 236.00 531.50 618.00 933.50 852.50 721.50 293.50 127.00 26.50 4626.00
1977 4.00 93.00 154.00 397.00 450.00 834.50 920.00 1067.00 582.50 293.50 118.00 95.00 5008.50
1978 1.00 45.50 248.00 a 318.50 508.00 756.50 965.50 881.00 588.50 278.00 47.50 27.50 4665.50
1979 0.00 81.00 190.50 342.50 591.50 761.50 970.50 970.30 a 724.29 b 403.50 18.50 59.50 5113.59
1980 5.50 37.00 131.75 a 404.50 565.75 a 666.21 a 946.00 789.50 652.00 301.98 b 136.00 99.72 a 4735.91
1981 22.14 c 90.50 196.50 325.50 523.00 659.00 891.50 984.52 b 634.50 264.50 129.83 a 52.50 4773.99
1982 49.50 112.00 138.50 218.50 500.00 823.00 920.50 876.50 517.50 259.00 34.00 44.50 4493.50
1983 76.00 114.00 213.50 253.00 597.50 696.00 858.00 968.50 502.00 293.00 206.50 10.50 4788.50
1984 50.50 n 60.50 242.00 287.50 455.50 677.00 959.50 898.00 434.00 j 261.00 91.50 7.00 3939.50
1985 0.00 30.00 127.00 441.50 618.00 746.50 1085.50 822.00 501.00 0.00 z 90.00 0.00 a 4461.50
1986 23.00 84.00 261.50 312.00 578.50 899.00 940.50 1067.50 589.00 383.00 161.00 2.00 5301.00
1987 14.00 48.00 241.00 437.50 670.50 805.00 917.00 879.50 714.00 314.00 140.89 b 80.00 5261.39
1988 18.50 71.00 167.00 384.00 557.50 740.50 954.50 867.50 629.50 488.50 182.00 25.50 5086.00
1989 70.00 3.00 160.50 392.00 507.50 787.50 919.00 887.00 619.50 331.50 192.50 44.50 4914.50
1990 92.00 55.00 167.00 441.00 509.00 729.50 1015.00 955.00 783.50 317.00 172.50 20.00 5256.50
1991 26.00 125.50 111.00 351.50 498.00 623.00 949.00 999.00 666.50 339.00 81.00 78.50 4848.00
1992 70.50 101.00 221.50 412.00 646.00 878.50 924.50 949.50 581.00 351.50 98.50 24.00 5258.50
1993 12.00 7.00 136.50 338.00 667.50 708.00 817.50 839.50 630.50 385.00 44.00 62.50 4648.00
1994 70.50 62.00 208.50 462.00 628.50 737.50 1059.50 955.00 716.00 302.00 77.00 90.50 5369.00
1995 25.50 154.50 169.50 281.00 566.50 685.00 983.50 812.50 728.00 288.50 210.50 44.00 4949.00
1996 47.00 78.00 147.50 379.50 474.50 699.00 1012.00 905.00 609.50 336.50 55.00 j 21.18 a 4709.68
1997 7.00 p 74.50 243.00 296.00 622.00 711.00 919.50 1009.50 703.50 329.50 94.00 29.00 5031.50
1998 40.09 b 81.00 177.50 282.50 0.00 z 755.50 0.00 z 0.00 z 807.50 0.00 z 0.00 z 72.85 a 2216.94
1999 106.95 a 104.00 158.50 239.50 463.50 724.50 903.00 958.33 b 577.00 281.00 167.59 a 86.28 a 4770.15
2000 25.66 b 47.00 132.50 400.50 575.00 724.00 958.00 916.57 a 601.50 283.00 20.69 a 2.07 a 4686.48
2001 1.55 a 12.50 164.50 278.00 589.50 670.00 937.23 a 964.10 a 721.00 300.18 a 130.34 a 42.88 a 4811.80
2002 61.00 54.50 124.50 339.00 504.50 795.00 1051.50 852.50 611.50 258.00 121.50 85.00 4858.50
2003 93.50 59.00 292.00 323.50 550.50 814.50 1053.50 987.50 717.00 458.50 79.50 10.50 5439.50
2004 25.00 30.50 274.50 345.50 557.00 781.50 1042.50 1046.50 644.50 388.00 43.00 54.00 5232.50
2005 40.50 12.50 247.00 344.00 645.50 711.50 1008.50 983.50 603.50 377.50 78.00 14.00 5066.00
2006 107.50 54.00 161.50 318.50 588.47 b 794.00 719.50 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2023.97
Period of Record Statistics
MEAN 48.82 68.26 180.36 323.51 558.54 750.65 963.93 931.48 646.70 334.65 115.14 49.99 4976.59
S.D. 39.52 36.65 50.86 69.57 58.79 68.82 61.99 73.67 87.29 61.44 50.04 30.14 254.38
SKEW 0.84 0.28 0.31 0.05 0.04 0.24 -0.03 0.13 0.25 0.88 0.01 0.03 0.12
MAX 158.62 159.00 292.00 462.00 670.50 899.00 1085.50 1075.00 837.50 488.50 210.50 99.72 5516.43
MIN 0.00 3.00 90.50 191.50 450.00 618.00 817.50 789.50 501.00 258.00 18.50 0.00 4493.50
NO YRS 42 44 44 44 43 44 42 42 42 42 42 44 38