CENTRALIA, WASHINGTON

Monthly Total Growing Degree Days

(451276)

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
1931 136.00 93.50 215.00 373.50 591.50 591.00 812.50 758.50 603.00 368.00 106.00 58.50 4707.00
1932 48.05 a 93.00 197.50 323.00 444.50 653.50 657.00 746.00 605.50 438.50 220.00 61.00 4487.55
1933 44.00 28.00 147.00 270.50 378.00 524.50 681.50 761.50 457.00 308.50 139.50 183.00 3923.00
1934 168.50 204.00 369.50 513.00 580.50 626.50 750.00 835.50 613.00 448.00 250.00 88.00 5446.50
1935 102.82 a 108.00 79.50 286.00 491.50 626.00 750.00 770.50 663.00 364.00 93.00 89.00 4423.32
1936 101.00 29.50 130.50 410.50 559.50 648.50 755.00 802.50 576.00 456.50 122.00 118.00 4709.50
1937 0.00 63.50 236.00 245.00 516.50 661.50 787.00 720.00 626.00 485.50 250.00 113.50 4704.50
1938 81.00 136.00 173.00 383.50 521.00 665.00 833.00 704.50 721.00 419.50 117.00 119.50 4874.00
1939 119.50 43.00 202.50 395.50 505.00 574.00 788.50 811.50 613.00 433.50 271.00 214.00 4971.00
1940 124.50 159.00 291.00 400.50 594.50 696.50 789.50 815.50 688.50 496.00 109.50 152.00 5317.00
1941 134.50 163.50 369.50 408.50 525.50 615.00 909.50 785.00 554.50 422.00 229.50 118.50 5235.50
1942 56.50 82.50 192.00 361.00 486.00 573.00 835.00 856.00 650.00 458.50 116.50 120.00 4787.00
1943 35.00 104.74 a 137.50 391.00 443.50 596.00 842.54 c 728.00 702.50 433.50 190.00 66.00 4670.28
1944 90.50 73.50 159.50 331.00 472.00 610.00 793.00 753.00 698.00 519.00 170.00 44.00 4713.50
1945 111.50 98.50 131.00 236.00 528.50 565.00 794.00 770.00 574.50 435.00 164.00 131.50 4539.50
1946 110.00 108.50 199.50 337.00 626.00 604.50 808.50 799.00 635.50 331.50 112.00 134.50 4806.50
1947 50.50 165.00 307.00 408.00 621.00 622.50 796.50 764.00 661.50 462.00 183.50 139.00 5180.50
1948 59.00 90.00 158.50 247.00 489.59 b 760.86 a 767.50 742.00 622.00 396.00 147.00 25.00 4504.45
1949 1.50 82.50 214.50 373.50 603.50 604.00 732.00 745.00 655.00 278.00 367.00 0.00 z 4656.50
1950 15.00 107.50 135.22 b 250.00 415.50 651.50 770.00 808.50 613.50 337.00 158.50 209.50 4471.72
1951 62.00 97.50 100.00 372.50 505.00 691.00 786.00 766.00 668.00 400.50 150.00 39.00 4637.50
1952 50.00 100.50 147.00 353.00 510.50 594.11 b 809.00 774.00 665.50 500.50 124.50 95.50 4724.11
1953 190.50 100.00 175.00 280.34 a 461.00 522.00 730.00 750.00 586.00 401.50 188.00 77.50 4461.84
1954 29.50 100.00 85.00 210.50 472.00 475.50 624.00 585.50 516.00 262.00 236.00 50.50 3646.50
1955 27.00 31.50 56.83 a 147.50 393.00 594.50 654.50 682.00 541.00 365.50 119.50 75.00 3687.83
1956 68.00 15.00 118.50 363.00 584.50 545.50 811.00 772.00 588.00 308.00 126.50 94.00 4394.00
1957 11.50 70.00 185.00 363.00 609.50 660.50 718.50 696.00 719.00 377.00 133.00 118.50 4661.50
1958 135.50 228.50 143.50 305.00 628.00 769.00 923.50 840.50 600.00 423.00 178.50 173.50 5348.50
1959 106.00 66.00 147.50 284.00 415.50 588.50 788.00 686.00 530.00 375.00 126.50 46.00 4159.00
1960 36.50 79.00 165.50 283.00 379.50 563.50 793.50 680.50 560.50 387.00 122.50 49.50 4100.50
1961 124.50 139.50 195.00 239.00 456.00 704.50 816.50 856.50 535.50 320.50 91.50 78.00 4557.00
1962 33.50 i 136.50 119.00 337.00 355.50 571.50 712.50 689.00 603.00 380.27 a 218.50 116.50 4239.27
1963 24.00 209.00 128.00 263.50 469.50 551.00 684.50 743.00 706.00 435.50 184.50 112.50 4511.00
1964 73.50 70.00 136.00 213.00 411.50 547.00 718.00 695.00 566.00 402.00 107.50 39.50 3979.00
1965 62.50 106.00 175.50 326.50 407.50 589.50 822.50 814.50 513.00 485.00 249.00 78.50 4630.00
1966 74.50 65.50 179.00 333.50 475.00 584.50 723.00 744.00 666.00 360.50 196.00 143.50 4545.00
1967 103.50 99.00 89.00 187.50 467.50 729.50 776.50 925.50 712.00 430.00 188.00 100.00 4808.00
1968 98.00 182.00 244.50 244.00 481.50 602.00 821.00 704.00 597.50 336.50 155.00 45.50 4511.50
1969 21.50 30.50 198.00 273.50 568.50 741.00 744.50 695.00 618.50 340.00 202.50 98.50 4532.00
1970 93.00 141.50 197.50 215.00 457.50 688.50 769.50 758.50 515.00 324.00 175.50 40.50 4376.00
1971 95.50 93.50 94.00 265.00 506.50 509.00 789.50 862.50 536.50 350.50 161.50 22.00 4286.00
1972 37.50 112.50 226.00 187.50 563.50 599.00 798.00 824.00 526.00 311.00 165.50 106.50 4457.00
1973 68.00 103.00 197.50 311.00 528.50 610.00 805.00 662.00 649.00 354.50 93.00 119.50 4501.00
1974 77.50 64.00 179.28 a 281.00 394.50 644.50 738.00 809.00 726.00 398.00 190.00 120.50 4622.28
1975 64.50 68.50 101.50 176.00 476.50 578.00 796.38 b 687.50 640.71 b 343.50 157.50 105.50 4196.09
1976 87.00 45.00 102.50 266.00 494.50 551.00 727.50 691.00 656.50 385.50 198.00 85.50 4290.00
1977 58.00 173.70 a 115.50 357.50 387.50 658.50 719.50 894.50 556.00 349.00 129.00 84.00 4482.70
1978 105.00 160.50 266.00 316.50 431.50 719.50 817.00 760.50 577.00 427.50 0.00 z 33.50 4614.50
1979 9.00 79.50 260.00 311.50 543.00 617.50 817.50 759.50 691.50 434.50 103.50 142.27 c 4769.27
1980 19.50 112.50 142.00 371.50 472.00 542.00 773.50 720.00 615.00 415.50 207.50 179.00 4570.00
1981 74.50 142.50 254.50 306.00 482.50 579.50 738.00 899.50 648.50 317.50 218.50 81.50 4743.00
1982 77.50 102.50 150.00 232.00 497.50 720.00 735.50 804.00 650.50 403.00 111.50 0.00 z 4484.00
1983 158.50 172.00 0.00 z 327.00 577.50 608.50 756.50 822.50 542.00 365.50 227.00 38.50 4595.50
1984 160.00 131.00 272.00 265.50 423.00 593.00 806.00 781.00 609.00 325.00 148.00 20.50 4534.00
1985 18.00 50.50 119.00 344.50 514.50 658.00 919.50 807.00 554.50 358.50 86.00 19.00 4449.00
1986 147.50 139.50 320.00 269.50 512.50 731.50 706.00 922.50 572.00 472.50 175.50 85.50 5054.50
1987 96.50 159.00 262.50 410.00 580.00 731.00 778.50 850.50 700.00 491.00 260.00 61.50 5380.50
1988 53.00 150.50 185.00 347.00 497.00 600.00 800.50 792.00 627.50 514.50 188.50 97.00 4852.50
1989 85.00 39.00 152.50 418.00 507.00 693.10 a 738.50 773.50 679.00 408.50 216.50 109.50 4820.10
1990 96.50 85.00 238.00 391.00 482.00 636.00 880.00 865.00 713.00 334.50 186.50 47.00 4954.50
1991 76.50 222.00 139.50 289.50 436.00 562.50 828.50 847.00 698.50 389.50 210.00 123.50 4823.00
1992 138.00 219.00 323.00 398.00 620.50 747.50 837.50 841.50 603.50 428.00 160.50 29.00 5346.00
1993 59.50 75.50 221.50 327.50 639.50 624.50 698.50 811.50 663.50 463.00 82.50 104.00 4771.00
1994 156.50 58.50 276.00 381.50 546.00 589.00 847.50 808.00 725.00 349.00 74.00 89.50 4900.50
1995 131.00 196.00 211.00 303.00 596.00 658.00 838.00 720.50 741.50 0.00 z 299.00 137.00 4831.00
1996 105.50 133.00 259.50 382.00 423.00 617.00 869.50 836.00 576.00 375.50 174.00 79.50 4830.50
1997 0.00 z 107.00 210.50 325.00 632.00 635.50 816.50 910.00 715.50 401.00 280.00 70.50 5103.50
1998 162.50 187.50 275.00 361.00 528.50 693.00 940.00 869.50 746.00 437.50 290.50 162.50 5653.50
1999 143.50 153.00 197.00 322.50 471.00 664.00 826.50 876.50 681.00 436.50 296.50 115.50 5183.50
2000 72.50 148.50 211.50 417.00 530.00 690.00 811.00 787.00 662.00 428.00 124.00 89.00 4970.50
2001 95.00 66.50 232.50 292.00 544.50 575.50 743.00 820.00 649.50 364.50 235.50 101.00 4719.50
2002 150.50 123.50 116.00 303.50 440.50 682.50 811.50 815.50 635.00 394.50 212.50 101.50 4787.00
2003 186.00 95.50 260.00 307.50 511.50 724.00 863.00 837.00 711.50 507.00 97.00 87.50 5187.50
2004 88.50 0.00 z 186.00 g 444.00 581.00 715.34 a 908.00 877.50 612.00 463.00 175.50 99.50 4964.34
2005 163.50 0.00 z 325.50 369.50 610.00 627.00 827.50 854.00 581.50 471.00 107.00 105.50 5042.00
2006 146.00 88.00 189.50 341.50 515.63 a 702.50 430.50 n 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1983.13
Period of Record Statistics
MEAN 87.09 110.26 190.77 319.18 505.25 629.87 786.49 784.45 626.82 399.63 173.39 94.65 4679.97
S.D. 47.57 50.63 69.81 69.45 70.59 64.97 62.86 68.45 65.13 59.17 60.85 43.71 393.22
SKEW 0.15 0.42 0.50 -0.10 0.05 0.16 0.02 -0.16 -0.19 0.00 0.63 0.43 -0.08
MAX 190.50 228.50 369.50 513.00 639.50 769.00 940.00 925.50 746.00 519.00 367.00 214.00 5653.50
MIN 0.00 15.00 56.83 147.50 355.50 475.50 624.00 585.50 457.00 262.00 74.00 19.00 3646.50
NO YRS 74 74 74 76 76 76 75 75 75 74 74 73 66