DAYTON 1 WSW, WASHINGTON

Monthly Total Growing Degree Days

(452030)

Base Temperature = 40 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200506
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
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 162.50 m 113.00 z 156.00 x 330.50 v 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 39.33 54.69 145.40 299.49 527.68 709.13 957.43 924.89 661.94 364.60 103.82 44.75 4831.08
S.D. 32.05 36.12 59.05 78.66 82.03 81.77 72.44 83.58 85.87 71.27 46.40 29.69 319.07
SKEW 1.37 1.32 0.36 0.26 0.14 0.14 0.05 0.20 -0.02 0.28 0.19 0.80 0.01
MAX 177.00 200.50 302.00 530.00 707.50 887.00 1132.50 1088.50 843.00 538.00 201.50 147.00 5579.00
MIN 0.00 0.50 32.50 146.50 362.00 529.00 761.50 756.50 466.00 229.40 27.00 0.00 4069.50
NO YRS 73 75 75 75 75 74 74 74 74 73 74 74 70