DAYTON 1 WSW, WASHINGTON

Monthly Total Growing Degree Days

(452030)

Base Temperature = 40 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 154.00 444.50 568.00 848.33 e 0.00 z 591.50 293.50 86.50 71.50 3057.83
1894 40.00 15.50 117.00 0.00 z 0.00 z 656.50 1025.00 1034.50 577.50 0.00 z 0.00 z 0.00 z 3466.00
1895 0.00 z 0.00 z 0.00 z 403.00 0.00 z 0.00 z 0.00 z 910.00 442.50 354.50 0.00 z 0.00 z 2110.00
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 115.50 79.50 195.00
1897 33.50 16.00 54.00 372.00 684.50 674.50 0.00 z 1019.50 601.00 349.50 117.12 d 70.50 3992.12
1898 0.00 139.50 75.50 366.50 484.50 691.00 0.00 z 0.00 z 633.00 304.00 54.00 33.50 2781.50
1899 97.00 28.50 65.50 63.00 s 368.50 573.00 921.50 673.00 668.00 237.50 218.50 80.00 3931.00
1900 83.50 19.50 238.70 a 346.00 572.00 799.00 873.00 927.50 640.50 353.00 79.50 73.50 5005.70
1901 6.50 19.50 186.50 197.50 548.70 a 544.50 881.00 1005.71 e 0.00 z 0.00 z 0.00 z 0.00 z 3389.91
1902 96.00 87.00 0.00 z 256.50 427.00 670.18 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1536.68
1903 0.00 z 0.00 z 133.50 226.00 485.00 829.50 814.50 823.00 582.00 416.00 138.50 25.50 4473.50
1904 36.00 28.00 68.50 410.00 0.00 z 669.00 893.00 990.00 740.50 454.50 217.00 39.50 4546.00
1905 33.50 89.00 216.50 366.50 431.00 663.50 997.50 887.50 663.50 229.50 110.50 11.00 4699.50
1906 61.00 57.00 171.00 424.00 487.00 622.50 1143.50 904.00 0.00 z 0.00 z 0.00 z 0.00 z 3870.00
1907 0.00 z 0.00 z 0.00 z 0.00 z 560.00 616.00 869.50 735.50 583.50 493.50 135.00 a 43.50 4036.50
1908 33.50 50.46 d 118.26 d 302.40 e 445.22 b 634.14 a 1004.50 925.23 e 687.00 343.00 198.00 20.50 4762.21
1909 33.50 74.00 155.50 207.50 449.50 697.00 834.00 862.50 671.00 386.50 180.50 9.00 4560.50
1910 37.00 3.50 291.50 0.00 z 625.50 678.00 948.00 899.00 664.00 521.00 139.00 24.00 4830.50
1911 41.00 3.50 230.00 263.50 421.00 685.71 b 976.00 830.50 516.50 336.00 84.50 18.00 4406.21
1912 63.00 43.00 87.50 272.50 536.50 708.50 866.50 786.00 542.00 245.00 162.50 22.50 4335.50
1913 4.50 26.00 87.00 312.00 548.00 682.00 894.00 962.00 652.00 251.50 129.00 4.00 4552.00
1914 113.50 43.50 192.00 312.00 554.00 627.50 1038.00 942.50 567.50 352.00 124.50 3.50 4870.50
1915 10.00 70.50 235.50 403.00 536.00 713.50 923.50 1090.00 584.00 380.50 83.50 62.00 5092.00
1916 12.50 21.50 183.00 328.45 a 426.52 b 697.50 899.00 982.00 670.50 352.00 51.00 8.50 4632.47
1917 38.50 30.00 14.50 224.50 512.00 679.00 1048.50 1086.50 601.50 f 474.00 188.00 168.50 4464.00
1918 74.00 55.00 226.50 335.00 393.00 903.00 1000.00 869.50 816.00 527.00 80.00 70.00 5349.00
1919 96.50 9.50 181.00 385.50 527.00 664.00 1032.50 1019.00 642.50 266.50 74.00 34.00 4932.00
1920 41.00 12.00 92.00 217.50 439.50 678.50 1052.50 981.15 a 634.50 361.00 107.50 62.00 4679.15
1921 32.50 90.00 189.50 275.00 567.50 823.00 930.00 951.00 510.00 477.92 a 173.50 58.00 5077.92
1922 1.50 16.00 84.50 208.50 526.00 955.00 1101.50 913.00 767.00 435.00 20.00 58.38 a 5086.38
1923 61.00 2.00 149.50 331.50 509.50 617.50 947.50 873.00 665.00 305.00 56.50 8.50 4526.50
1924 32.00 127.00 51.00 269.00 712.50 731.00 870.50 813.50 629.00 360.00 59.00 62.00 4716.50
1925 69.50 106.50 152.00 401.50 601.50 773.50 1048.00 857.50 605.50 297.00 71.50 71.50 5055.50
1926 18.50 124.50 208.00 486.00 537.50 821.50 1003.50 935.00 463.50 400.50 132.00 52.00 5182.50
1927 20.00 62.00 88.00 262.00 387.50 728.00 941.50 905.50 515.00 378.00 163.00 22.50 4473.00
1928 16.50 2.00 185.00 233.00 684.50 712.50 1008.00 863.50 628.00 362.00 86.50 19.00 4800.50
1929 0.00 0.00 160.50 204.50 601.00 591.50 j 878.50 982.50 561.00 392.50 64.00 66.50 3911.00
1930 14.00 129.50 170.00 453.00 455.50 649.00 948.00 986.50 654.50 206.50 77.00 0.00 4743.50
1931 51.15 a 24.50 143.00 271.50 610.00 723.50 970.00 927.50 581.50 312.50 76.50 17.00 4708.65
1932 13.00 88.50 122.50 315.00 492.00 739.50 858.00 861.50 655.50 375.00 183.50 36.00 4740.00
1933 33.00 19.00 138.00 283.00 378.50 687.50 943.00 933.00 546.00 472.00 116.50 147.00 4696.50
1934 114.50 65.50 302.00 530.00 639.00 754.00 942.00 982.50 596.50 417.00 153.00 16.00 5512.00
1935 77.50 32.00 58.00 220.50 524.50 731.00 925.00 894.50 762.00 464.00 43.50 28.50 4761.00
1936 43.00 21.00 144.00 465.00 706.00 789.50 959.50 935.00 632.00 442.00 41.50 69.00 5247.50
1937 0.00 33.00 189.00 246.50 568.50 749.50 1027.50 832.50 707.50 474.50 170.50 58.50 5057.50
1938 26.50 6.50 135.00 327.50 524.00 787.50 1028.00 838.50 817.50 409.00 68.00 80.50 5048.50
1939 42.50 19.00 201.50 368.00 582.00 643.50 981.50 966.50 704.50 396.50 149.00 120.50 5175.00
1940 20.00 69.00 244.50 329.50 653.50 845.00 954.50 927.50 737.50 462.50 42.50 46.50 5332.50
1941 25.50 54.00 254.00 390.50 495.00 648.50 1041.50 920.00 538.50 274.50 161.50 97.50 4901.00
1942 7.50 15.00 148.50 368.00 446.00 618.00 990.50 1008.50 724.50 426.00 70.50 39.00 4862.00
1943 8.27 a 22.00 113.00 391.50 419.50 613.50 968.50 866.00 750.50 402.50 42.00 30.50 4627.77
1944 27.50 17.50 115.50 325.00 554.00 696.50 963.07 a 914.50 757.00 509.50 104.50 30.50 5015.07
1945 61.00 56.00 86.50 225.00 555.50 651.50 1001.00 975.00 582.50 438.00 105.50 62.50 4800.00
1946 23.50 63.50 120.00 350.50 549.00 652.00 937.50 935.00 613.00 243.50 60.52 a 87.00 4635.02
1947 31.00 73.50 244.00 355.00 696.50 660.50 922.50 860.00 704.50 425.50 68.00 29.00 5070.00
1948 28.50 52.50 62.50 218.00 445.50 795.50 833.50 814.50 612.50 301.00 74.50 7.50 4246.00
1949 0.00 29.50 101.00 394.50 653.00 650.00 888.00 870.50 678.00 229.40 a 175.50 26.00 4695.40
1950 6.20 a 70.50 86.50 209.50 458.00 669.50 940.50 954.50 689.50 374.00 102.00 55.00 4615.70
1951 29.00 39.00 66.50 267.50 523.00 622.50 940.50 871.00 635.50 287.50 70.00 13.50 4365.50
1952 4.00 56.00 98.50 386.50 547.00 657.50 925.00 892.00 714.00 460.50 35.00 36.50 4812.50
1953 177.00 58.00 154.50 234.50 434.00 546.00 890.00 884.00 694.50 376.50 147.50 45.50 4642.00
1954 36.50 72.00 57.00 224.50 517.50 569.50 857.50 756.50 576.50 256.00 189.00 21.00 4133.50
1955 2.50 17.50 32.50 146.50 390.50 710.00 844.00 838.50 600.50 366.00 79.00 42.00 4069.50
1956 33.50 18.50 130.00 363.50 583.50 630.50 958.00 858.00 626.50 298.00 44.50 89.00 4633.50
1957 2.00 47.00 104.00 313.50 596.00 717.00 855.50 772.00 670.50 248.50 52.50 62.50 4441.00
1958 57.50 200.50 105.50 256.50 707.50 821.00 1091.50 1084.50 641.00 399.50 173.50 40.50 5579.00
1959 71.00 19.50 132.50 312.50 404.50 704.00 982.50 824.60 a 583.50 341.50 100.50 24.50 4501.10
1960 17.00 44.50 199.00 291.50 423.50 695.00 1086.00 822.00 645.50 398.50 100.50 4.50 4727.50
1961 71.00 118.50 169.50 257.50 502.50 887.00 1048.00 1088.50 538.00 315.00 29.00 48.00 5072.50
1962 47.00 70.00 83.50 343.00 362.00 638.00 876.50 815.50 665.00 340.00 130.00 43.50 4414.00
1963 14.50 102.00 162.50 218.00 528.00 689.00 839.50 941.00 798.50 473.50 146.00 3.50 4916.00
1964 40.00 31.50 83.00 204.50 442.50 671.50 945.00 789.00 571.50 337.50 64.50 46.50 4227.00
1965 31.00 70.00 97.50 356.00 469.00 692.50 974.00 949.00 538.50 487.00 163.50 41.00 4869.00
1966 47.00 41.50 176.50 301.00 583.50 627.00 886.50 921.50 752.00 361.00 149.00 70.00 4916.50
1967 85.25 a 54.50 104.50 147.50 475.50 789.00 1031.50 1088.50 843.00 416.50 99.00 60.50 5195.25
1968 50.00 132.50 237.00 204.50 525.50 722.50 1049.50 837.00 685.00 294.50 75.50 44.00 4857.50
1969 2.00 7.50 146.50 292.00 608.00 835.00 915.50 868.50 709.00 252.50 148.00 47.50 4832.00
1970 23.00 i 34.00 107.50 146.50 516.67 a 840.00 1045.00 981.50 513.00 293.50 107.00 37.00 4621.67
1971 96.00 82.00 51.00 212.00 544.50 529.00 958.00 1086.50 514.50 285.00 72.00 42.00 4472.50
1972 0.00 z 56.50 193.50 194.00 575.00 734.00 927.50 1028.50 587.50 330.50 97.00 90.00 4814.00
1973 41.00 52.00 148.00 265.00 592.00 0.00 z 998.31 d 898.00 653.00 355.50 85.00 75.00 4162.81
1974 68.50 60.00 140.50 269.00 413.50 795.00 944.00 970.50 738.00 0.00 z 121.50 35.00 4555.50
1975 26.87 a 19.00 60.00 154.00 473.50 631.00 1058.50 820.50 701.00 367.00 127.50 69.50 4508.37
1976 56.50 37.50 89.00 257.00 532.00 618.50 940.50 840.00 766.00 365.50 117.50 19.50 4639.50
1977 9.00 81.00 84.50 379.00 399.50 850.50 914.00 1052.50 563.50 315.50 102.50 66.50 4818.00
1978 16.50 44.50 215.50 259.50 437.00 761.00 947.00 883.50 590.00 365.50 59.50 10.00 4589.50
1979 0.00 52.00 185.00 273.50 557.00 777.50 998.00 973.50 761.79 b 469.28 b 36.50 67.50 5151.56
1980 13.50 57.50 77.50 405.52 a 510.00 584.48 a 974.50 845.86 c 669.50 342.50 132.50 106.00 4719.36
1981 39.50 86.00 167.00 275.00 495.50 574.50 906.20 c 1053.00 695.00 312.50 148.50 47.00 4799.70
1982 31.50 74.00 119.00 198.00 505.50 807.50 941.50 950.00 632.50 301.00 46.50 40.00 4647.00
1983 92.00 126.50 193.50 271.50 573.00 674.50 853.50 1028.50 544.50 345.50 168.50 6.00 4877.50
1984 56.00 28.00 168.50 233.00 416.00 608.00 969.00 987.00 578.00 257.50 92.50 1.00 4394.50
1985 0.00 a 12.50 91.00 353.00 568.00 711.00 1114.50 831.50 466.00 288.50 66.50 0.00 4502.50
1986 27.00 74.50 237.00 254.00 529.00 863.50 821.00 1076.00 518.50 408.50 103.00 0.00 4912.00
1987 12.50 38.00 197.00 443.50 623.50 804.50 905.50 887.00 764.50 408.50 139.00 69.50 5293.00
1988 15.00 64.00 118.00 345.00 520.50 702.50 951.50 927.50 649.50 538.00 134.00 22.50 4988.00
1989 51.50 3.50 158.50 384.50 493.50 795.50 936.00 878.50 691.50 344.00 155.00 31.50 4923.50
1990 55.00 35.50 166.00 412.50 470.00 699.50 1036.50 964.50 808.50 317.00 154.50 23.00 5142.50
1991 26.00 121.50 73.50 271.00 426.00 593.00 935.50 1023.00 735.00 390.00 86.50 43.00 4724.00
1992 74.50 119.00 236.00 393.00 663.00 873.50 917.50 954.50 577.50 382.00 62.50 15.00 5268.00
1993 20.50 0.50 140.50 304.50 667.50 688.00 761.50 850.00 680.00 434.00 40.50 62.00 4649.50
1994 75.50 42.50 221.00 395.00 599.00 707.50 1027.00 948.00 750.50 317.00 52.00 75.00 5210.00
1995 51.00 144.50 170.50 262.50 552.50 658.00 960.00 819.50 746.50 291.00 189.00 44.00 4889.00
1996 53.00 61.00 114.50 355.00 410.50 693.50 1033.00 955.50 587.00 349.00 66.50 35.00 4713.50
1997 38.50 57.50 173.00 251.50 631.00 700.00 917.00 1013.50 733.50 344.00 131.50 25.50 5016.50
1998 64.50 99.50 182.00 299.00 496.00 753.50 1132.50 1005.50 825.00 343.50 135.00 65.50 5401.50
1999 89.50 57.00 149.50 255.00 452.00 703.00 909.00 1019.00 641.00 353.50 201.50 64.50 4894.50
2000 10.50 51.50 140.00 420.00 a 576.00 717.50 949.00 844.50 618.00 331.50 27.00 0.00 4685.50
2001 1.00 14.50 185.00 262.00 599.50 671.50 944.00 1024.50 772.50 343.50 138.50 22.00 4978.50
2002 35.00 46.50 84.00 304.50 503.50 783.00 1051.00 889.50 663.50 278.00 125.50 83.50 4847.50
2003 91.50 43.00 230.00 296.00 526.50 802.50 1076.50 987.50 741.00 494.00 60.00 9.50 5358.00
2004 11.00 49.00 262.00 372.00 542.00 768.00 1024.00 1024.00 626.50 395.00 95.00 40.50 5209.00
2005 63.50 43.00 226.50 331.00 612.50 670.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1947.00
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 21.50 42.50 235.50 68.50 h 184.00 l 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2.00 0.00 z 301.50
2008 0.00 z 3.00 0.00 z 71.40 e 193.75 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 141.00 18.50 427.65
2009 33.00 9.00 50.50 248.00 530.00 712.50 1014.22 a 958.00 697.00 224.00 80.50 4.50 4561.22
2010 67.00 61.00 149.00 257.50 385.50 632.00 928.00 901.50 625.50 382.50 104.50 35.00 4529.00
2011 61.00 28.00 97.00 135.52 a 385.50 565.80 e 846.00 944.50 532.00 i 350.00 63.00 22.50 3498.82
2012 12.50 21.50 86.50 323.50 469.00 608.50 967.00 973.00 662.50 307.50 278.50 49.60 a 4759.60
2013 18.82 c 19.00 133.96 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 171.79
Period of Record Statistics
MEAN 39.61 51.19 144.88 298.30 517.80 702.93 955.55 923.63 648.53 361.60 107.34 43.70 4816.47
S.D. 31.22 37.67 61.22 83.08 89.01 84.17 74.66 84.66 85.25 75.07 50.78 30.71 305.21
SKEW 1.17 1.10 0.25 0.09 -0.14 0.45 0.14 -0.08 0.02 0.22 0.48 1.05 0.10
MAX 177.00 200.50 302.00 530.00 712.50 955.00 1143.50 1090.00 843.00 538.00 278.50 168.50 5579.00
MIN 0.00 0.00 14.50 71.40 193.75 529.00 761.50 673.00 442.50 206.50 2.00 0.00 4069.50
NO YRS 112 115 114 113 114 113 111 112 110 110 113 112 95