CHEWELAH, WASHINGTON

Monthly Total Growing Degree Days

(451395)

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
1925 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 13.50 2.50 16.00
1926 0.00 5.50 76.00 315.00 367.50 608.50 816.33 a 688.00 323.00 214.00 15.00 5.00 3433.83
1927 0.00 0.00 17.50 166.50 331.00 643.00 734.38 b 740.50 428.50 202.00 23.50 7.00 3293.88
1928 0.00 0.00 74.00 141.50 520.50 571.00 805.00 650.48 a 446.50 176.00 14.50 0.00 3399.48
1929 0.00 0.00 37.00 29.00 m 463.50 619.50 768.00 763.00 415.50 261.43 a 0.00 a 1.50 3329.43
1930 0.00 18.50 61.50 311.50 282.50 i 557.00 569.50 i 824.00 543.00 143.00 18.00 0.00 2476.50
1931 0.00 3.50 79.00 200.69 a 545.00 634.50 841.00 770.50 488.50 179.50 21.50 0.00 3763.69
1932 0.00 15.54 a 49.00 220.50 426.50 679.00 718.50 744.50 389.50 g 216.50 36.43 b 11.50 3117.96
1933 0.00 0.00 a 22.50 168.50 325.50 586.50 756.50 763.50 395.00 229.50 26.00 26.50 3300.00
1934 2.50 3.50 118.00 387.00 508.00 622.50 794.50 774.50 395.50 227.00 93.00 0.00 b 3926.00
1935 1.00 0.00 22.00 146.40 e 374.50 529.00 782.50 700.00 528.00 202.00 0.00 0.00 a 3285.40
1936 0.00 0.00 20.50 304.00 552.00 657.50 803.50 740.00 468.00 255.50 0.00 10.50 3811.50
1937 0.00 a 1.50 50.00 182.50 445.00 572.07 a 848.00 657.50 530.00 275.90 a 44.50 6.00 f 3606.97
1938 0.00 0.00 22.00 66.50 o 0.00 z 729.00 890.50 685.50 709.50 278.00 3.00 l 0.00 q 3314.50
1939 4.00 0.00 b 87.00 258.00 457.25 a 492.50 805.00 798.00 545.50 214.50 5.00 14.50 3681.25
1940 0.00 1.50 139.00 275.50 546.00 740.50 677.00 h 787.00 676.00 327.00 7.00 0.00 3499.50
1941 0.00 0.00 140.00 322.50 458.50 654.50 951.00 791.00 426.50 184.00 25.50 5.68 a 3959.18
1942 0.00 0.00 32.50 238.50 407.00 564.50 889.50 851.00 551.00 224.50 4.50 0.00 3763.00
1943 0.00 0.00 32.00 286.50 374.00 560.50 834.00 718.00 544.00 244.50 6.50 13.00 3613.00
1944 0.00 1.00 40.00 250.50 504.00 662.00 843.00 767.00 570.50 323.00 49.50 1.50 4012.00
1945 9.50 2.50 40.00 146.50 503.75 c 596.00 857.50 811.00 447.50 284.00 14.00 2.50 3714.75
1946 0.00 0.00 45.50 241.50 530.50 579.50 814.50 787.92 a 468.75 b 122.00 0.00 9.50 3599.67
1947 3.10 a 18.00 i 112.00 223.50 534.23 a 599.50 814.50 724.00 528.75 b 282.50 8.50 j 0.00 3822.08
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 788.33 c 741.00 760.00 511.55 a 184.45 a 2.14 b 0.00 2987.48
1949 0.00 0.00 b 36.50 267.50 564.72 a 607.00 799.00 756.50 567.00 117.50 69.50 4.28 b 3789.49
1950 0.00 0.50 13.43 a 136.50 389.50 633.00 841.13 a 796.50 539.00 170.50 a 4.00 10.50 3534.57
1951 0.00 10.00 24.50 231.00 455.18 a 591.50 830.00 774.50 518.50 224.00 12.00 3.50 3674.68
1952 0.00 0.00 41.50 292.00 505.50 622.00 821.00 798.00 584.00 283.50 9.00 0.00 3956.50
1953 14.00 7.50 66.00 212.00 415.50 545.00 795.00 777.50 534.00 273.50 38.50 0.00 3678.50
1954 1.00 8.00 29.00 146.00 458.50 530.50 738.50 680.00 493.00 125.55 a 88.00 0.00 3298.05
1955 0.00 0.00 3.00 82.76 a 346.50 651.00 787.00 705.00 502.50 221.65 a 11.50 0.00 3310.91
1956 0.00 0.00 32.50 297.00 543.50 572.50 851.00 758.50 513.50 193.48 b 9.50 6.00 3777.48
1957 0.00 7.50 26.50 227.00 626.00 662.00 744.50 665.00 584.50 217.00 a 6.00 1.00 3767.00
1958 0.00 55.00 77.50 198.50 661.50 766.50 910.00 918.00 496.00 211.50 41.00 0.00 4335.50
1959 0.00 0.00 22.00 231.50 325.00 598.00 805.00 692.00 443.50 166.50 9.50 1.00 3294.00
1960 0.00 0.00 106.50 206.50 372.50 617.50 909.50 692.50 515.00 240.00 7.00 0.00 3667.00
1961 2.00 10.50 64.50 198.50 450.50 772.50 875.50 927.00 395.50 157.50 4.00 0.00 3858.00
1962 0.00 1.00 18.00 262.00 349.00 573.50 745.50 721.50 506.00 227.00 37.50 6.00 3447.00
1963 1.50 6.00 63.50 174.50 417.50 634.00 741.00 791.50 658.00 273.50 14.50 0.00 3775.50
1964 0.00 0.00 12.00 151.50 385.50 596.00 792.50 628.00 380.50 175.00 17.00 0.00 3138.00
1965 0.00 0.00 6.50 243.50 381.50 572.50 799.00 798.00 355.00 251.00 33.00 0.00 3440.00
1966 0.00 0.00 60.50 187.00 454.00 506.00 749.50 749.50 626.50 168.50 5.00 6.00 3512.50
1967 0.50 17.50 19.00 102.50 403.52 a 677.50 813.00 860.50 665.00 192.50 27.00 0.00 3778.52
1968 0.00 12.50 76.00 130.00 373.50 554.50 833.50 717.00 0.00 z 117.50 6.00 0.00 2820.50
1969 0.00 0.00 33.50 214.50 507.00 707.00 705.00 711.50 526.50 97.00 32.50 0.00 3534.50
1970 0.00 0.00 22.50 93.00 431.50 714.00 872.50 798.00 384.00 157.00 16.20 e 0.00 3488.70
1971 5.50 0.00 10.50 159.50 478.50 519.00 788.50 901.00 374.00 180.00 6.00 0.00 3422.50
1972 1.00 19.50 88.00 100.00 458.50 588.50 719.00 862.00 386.50 175.50 6.00 8.00 3412.50
1973 0.00 2.00 37.00 183.50 451.00 588.50 821.50 789.50 500.50 171.50 13.00 5.00 3563.00
1974 11.00 0.00 42.00 213.50 326.50 714.50 771.00 786.50 532.50 167.00 6.50 0.00 3571.00
1975 0.00 0.00 5.00 112.50 405.00 559.00 929.00 674.50 0.00 z 201.50 36.00 13.50 2936.00
1976 0.00 0.50 16.50 174.50 427.50 502.50 771.00 701.00 571.50 169.50 17.50 0.00 3352.00
1977 0.00 5.00 28.50 254.00 341.00 706.00 766.50 881.50 411.50 119.00 0.00 z 1.03 a 3514.03
1978 0.00 a 0.00 118.32 a 199.00 357.53 a 642.00 789.47 a 728.50 459.50 182.50 14.00 0.00 3490.82
1979 0.00 0.00 51.50 152.50 438.00 656.50 886.50 895.50 627.50 290.50 0.00 2.50 4001.00
1980 0.00 8.00 31.00 329.00 534.50 598.00 822.50 719.00 526.00 252.50 72.50 24.80 a 3917.80
1981 0.00 42.50 111.50 197.50 445.50 517.50 791.50 939.00 573.00 180.00 33.50 2.50 3834.00
1982 0.00 14.50 51.00 116.00 450.50 804.00 825.00 875.50 552.50 206.50 3.50 3.00 3902.00
1983 1.00 25.50 107.50 218.00 503.00 628.50 720.00 893.00 431.00 188.50 56.50 0.00 3772.50
1984 0.00 0.50 75.50 170.50 339.00 565.00 842.50 819.50 402.50 172.50 9.00 0.00 3396.50
1985 0.00 1.50 9.00 249.00 505.00 640.00 999.00 723.00 376.00 151.00 20.36 b 0.00 3673.86
1986 0.00 12.50 113.00 184.50 519.50 808.00 768.50 995.50 422.00 277.50 13.93 b 0.00 4114.93
1987 0.00 1.50 104.50 341.00 544.00 0.00 z 848.50 789.00 636.00 233.50 59.50 7.50 3565.00
1988 0.00 18.00 52.00 296.00 473.50 645.00 856.00 847.00 519.50 364.50 35.50 0.00 4107.00
1989 5.50 0.00 56.00 282.00 455.70 a 749.00 870.50 781.50 572.50 177.00 53.00 2.50 4005.20
1990 5.50 5.00 102.00 326.00 429.00 629.50 979.00 898.50 728.50 142.00 61.00 0.00 4306.00
1991 0.00 16.50 27.00 227.50 432.50 576.50 841.00 923.00 645.50 246.50 16.00 2.00 3954.00
1992 0.50 40.00 187.00 300.00 613.50 861.00 875.00 894.50 500.00 288.50 18.00 0.00 4578.00
1993 0.00 0.00 44.00 195.00 658.50 658.50 651.00 774.00 538.50 304.50 5.50 0.00 3829.50
1994 0.00 0.00 122.50 326.50 547.00 673.00 1019.00 890.00 657.50 221.50 1.00 0.00 4458.00
1995 0.00 44.50 51.00 206.79 b 556.00 661.00 881.00 737.50 642.50 164.00 42.50 7.00 3993.79
1996 0.00 6.50 52.00 220.00 366.00 641.50 914.50 819.00 486.50 226.00 6.00 0.00 3738.00
1997 0.52 a 0.50 71.00 163.50 540.43 a 645.00 a 845.50 946.50 628.50 219.50 36.00 0.00 4096.95
1998 1.00 14.50 108.00 288.00 565.50 677.00 1040.50 937.75 a 740.50 206.50 51.00 0.50 4630.75
1999 0.52 a 3.00 71.50 216.21 a 392.50 647.00 774.50 938.50 477.86 b 182.50 67.00 5.34 b 3776.43
2000 0.00 o 0.00 z 53.96 d 331.61 b 488.00 663.75 b 854.10 b 794.00 522.50 207.50 0.00 f 0.00 3915.42
2001 0.00 0.00 47.00 181.50 566.50 607.00 890.50 939.00 648.50 180.00 78.50 0.00 n 4138.50
2002 0.00 o 6.50 46.00 271.50 433.00 742.50 976.50 856.50 555.50 193.50 19.50 n 1.50 p 4081.50
2003 3.00 12.00 100.50 266.50 488.50 759.00 977.50 973.50 647.50 364.00 14.00 0.00 4606.00
2004 0.00 0.00 z 118.50 343.00 478.00 0.00 z 953.00 892.50 500.50 271.52 b 2.88 d 0.00 3559.90
2005 0.00 z 0.00 0.00 z 217.00 480.50 352.00 n 708.00 g 846.00 556.00 246.00 0.54 b 0.00 2346.04
2006 5.50 5.50 48.00 214.50 508.50 683.00 970.50 826.50 542.00 180.50 38.50 0.00 4023.00
2007 0.00 0.50 90.50 211.50 452.50 628.50 1042.00 774.50 514.50 193.50 12.50 5.37 e 3925.87
2008 0.00 0.00 3.00 81.50 451.50 542.14 b 644.00 g 791.50 485.50 135.00 27.00 h 0.00 c 2490.14
2009 0.00 a 0.00 5.50 165.50 422.50 635.50 878.85 a 832.00 569.50 114.50 9.00 0.00 3632.85
2010 0.00 1.50 56.50 206.00 319.50 538.00 758.50 751.50 523.00 252.50 29.00 0.00 3436.00
2011 0.00 0.00 37.00 90.50 406.00 556.00 694.00 788.00 567.93 a 213.00 1.00 2.50 3355.93
2012 4.50 0.00 38.00 275.00 437.00 552.50 904.50 827.18 a 555.56 c 201.00 70.00 13.00 3878.24
2013 0.00 0.00 g 44.50 j 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
Period of Record Statistics
MEAN 1.00 5.99 56.01 218.21 458.08 630.48 833.43 796.18 521.87 210.65 23.59 3.04 3744.48
S.D. 2.50 10.80 38.09 69.16 78.80 76.60 81.26 82.86 90.08 55.82 22.84 5.23 333.45
SKEW 3.27 2.65 0.89 0.08 0.30 0.66 0.54 0.32 0.15 0.46 1.21 2.43 0.69
MAX 14.00 55.00 187.00 387.00 661.50 861.00 1042.00 995.50 740.50 364.50 93.00 26.50 4630.75
MIN 0.00 0.00 3.00 81.50 319.50 492.50 651.00 628.00 323.00 97.00 0.00 0.00 3138.00
NO YRS 84 83 85 84 84 84 83 87 84 87 82 84 69