BOTHELL, WASHINGTON

Monthly Total Growing Degree Days

(450826)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195905
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 121.42 a 62.50 161.20 a 341.50 580.50 573.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1840.62
1932 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 662.37 a 506.50 359.50 181.00 37.72 a 1747.08
1933 28.00 16.50 84.00 190.18 b 312.00 476.00 598.00 680.00 434.50 296.00 132.00 86.00 3333.18
1934 100.50 116.00 255.50 388.00 452.00 529.50 611.00 686.50 466.50 355.93 d 217.50 55.00 4233.93
1935 97.50 76.22 a 31.50 175.50 360.00 548.50 644.00 627.50 533.50 290.50 70.00 90.50 3545.22
1936 61.50 12.95 a 79.00 305.00 479.00 583.00 648.00 659.55 b 463.50 389.50 152.00 156.03 a 3989.03
1937 0.00 25.20 c 190.13 a 113.00 k 251.00 j 593.00 335.50 o 658.23 a 506.90 a 383.00 164.00 99.00 2619.46
1938 26.50 66.50 117.50 282.00 404.50 556.50 713.50 580.50 584.00 343.50 78.00 89.50 3842.50
1939 74.50 14.00 122.50 303.50 412.00 496.61 b 665.00 690.50 495.50 306.50 210.58 d 141.64 b 3932.82
1940 98.50 114.93 b 223.00 312.00 491.00 578.00 684.50 684.50 613.00 432.34 c 92.59 a 110.00 4434.35
1941 83.50 138.50 268.15 a 327.00 439.50 550.00 c 787.29 b 690.86 c 378.00 f 349.00 174.50 81.50 3889.80
1942 65.00 31.00 121.00 267.00 402.50 516.50 732.50 749.50 500.50 395.50 73.97 a 79.00 3933.97
1943 11.22 b 78.50 87.00 312.50 363.50 495.50 640.00 631.50 573.00 350.00 137.00 46.00 3725.72
1944 64.50 33.50 104.37 a 263.04 b 408.00 530.69 a 694.50 640.50 623.04 b 373.50 141.50 49.50 3926.63
1945 109.50 70.00 75.50 136.50 450.53 a 462.41 a 705.50 663.00 469.00 343.50 72.00 73.00 3630.45
1946 42.50 56.50 108.50 210.50 476.50 506.50 697.50 670.50 557.00 234.50 59.50 60.50 3680.50
1947 38.00 107.50 202.00 298.50 511.50 564.00 665.50 655.00 521.50 328.00 97.50 62.50 4051.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 597.00 651.50 660.30 a 474.83 a 299.15 a 58.45 a 9.00 2750.23
1949 1.55 a 35.78 a 159.65 a 291.00 490.50 502.00 623.50 692.00 600.50 238.00 266.50 58.00 3958.98
1950 11.50 67.93 a 102.30 a 190.34 a 335.83 a 583.97 a 659.00 715.00 572.59 a 298.00 128.00 162.00 3826.46
1951 29.50 64.30 a 79.57 a 260.17 a 410.75 a 583.00 746.50 655.50 574.50 337.50 137.00 30.00 3908.29
1952 42.00 78.00 100.00 252.50 399.50 440.50 531.50 g 701.50 605.50 489.50 133.50 80.50 3323.00
1953 139.50 63.50 141.00 240.00 423.50 490.50 703.50 712.00 561.50 384.50 230.00 73.50 4163.00
1954 18.50 98.50 74.00 196.50 407.00 444.00 574.50 606.00 533.00 281.00 252.00 65.00 3550.00
1955 17.50 16.00 40.50 124.00 303.00 501.50 596.50 580.00 450.00 312.00 72.50 29.00 3042.50
1956 34.50 5.50 76.98 a 230.00 473.50 481.50 714.00 661.50 197.50 s 198.50 h 74.46 b 111.50 2863.45
1957 7.50 59.00 183.50 333.00 549.00 436.00 h 664.50 424.50 k 644.50 331.00 104.00 131.50 3007.50
1958 115.22 a 249.50 138.50 302.31 d 606.64 b 716.50 865.13 d 569.50 h 572.00 421.50 106.11 c 122.00 i 4093.40
1959 89.50 66.50 162.50 284.00 406.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1009.00
Period of Record Statistics
MEAN 56.64 67.58 129.24 262.17 436.49 534.64 678.56 664.57 537.47 343.19 133.93 79.51 3826.79
S.D. 41.31 50.42 61.10 65.09 75.17 59.81 64.46 39.58 59.14 57.81 60.99 38.77 322.02
SKEW 0.34 1.73 0.65 -0.42 0.37 0.83 0.92 -0.36 -0.03 0.32 0.65 0.48 -0.52
MAX 139.50 249.50 268.15 388.00 606.64 716.50 865.13 749.50 644.50 489.50 266.50 162.00 4434.35
MIN 0.00 5.50 31.50 124.00 303.00 440.50 574.50 580.00 434.50 234.50 58.45 9.00 3042.50
NO YRS 27 27 27 26 26 26 24 25 25 26 27 26 19