CHELAN, WASHINGTON

Monthly Total Growing Degree Days

(454430)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195804
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
1891 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1080.00 1070.00 686.00 428.00 0.00 z 1.55 a 3265.55
1892 0.00 0.00 z 174.50 247.00 578.50 861.50 962.00 1022.50 707.00 350.50 0.00 z 0.00 z 4903.50
1893 3.00 0.00 a 13.00 207.50 539.92 a 638.00 1016.05 b 1040.00 587.50 221.00 37.50 b 0.00 4303.47
1894 3.50 3.50 45.00 294.50 621.00 768.00 1092.50 1130.50 619.50 250.50 75.50 0.00 4904.00
1895 0.00 12.50 88.50 337.00 505.50 782.00 952.50 974.50 473.50 343.00 19.50 8.00 4496.50
1896 0.00 30.00 87.00 234.50 415.50 778.00 1083.00 956.50 607.50 328.50 19.50 1.00 4541.00
1897 0.00 0.00 9.50 384.00 695.50 738.50 868.50 1076.50 636.00 321.00 37.00 3.50 4770.00
1898 0.00 9.50 55.00 410.50 648.50 734.00 1044.50 1104.00 662.00 0.00 z 46.00 0.00 4714.00
1899 0.00 23.50 41.50 255.00 533.50 701.00 1026.50 789.00 766.50 292.50 151.61 b 2.50 4583.11
1900 2.50 10.00 174.50 430.50 640.50 888.00 1047.00 876.50 638.00 298.00 16.50 43.00 5065.00
1901 1.55 a 12.50 82.15 a 0.00 z 595.00 649.50 927.00 1100.50 571.00 485.50 72.41 a 10.50 4507.61
1902 2.50 0.00 68.50 263.50 592.50 705.00 885.16 c 1032.00 627.00 427.00 23.00 0.00 4626.16
1903 0.00 0.50 k 54.00 255.00 559.50 882.00 913.50 949.00 602.00 331.59 c 44.48 a 0.00 4591.07
1904 0.00 0.00 5.00 324.50 561.50 800.00 1061.00 1093.00 774.50 305.87 a 44.50 0.00 b 4969.87
1905 0.00 b 6.74 a 144.15 a 367.00 549.50 747.00 1066.50 978.00 705.50 195.50 25.00 0.00 4784.89
1906 0.00 9.00 105.50 454.00 601.00 673.50 1253.50 1056.50 733.50 457.00 107.50 0.00 5451.00
1907 0.00 0.50 36.50 280.50 675.00 730.50 1002.50 441.50 o 693.50 527.00 77.00 2.58 a 4025.58
1908 0.00 0.50 115.00 344.00 515.00 795.50 1080.00 1027.50 726.00 344.50 113.50 1.50 5063.00
1909 0.00 b 0.00 92.48 a 286.50 578.50 779.00 937.00 958.50 773.50 347.00 54.50 0.00 4806.98
1910 0.00 1.50 166.00 384.00 551.50 f 746.00 1032.50 885.50 656.00 395.50 56.00 0.00 4323.00
1911 9.00 0.00 155.50 323.00 505.00 800.50 1038.00 963.00 595.86 a 333.00 42.32 b 0.00 b 4765.18
1912 0.00 5.00 96.50 334.50 659.00 848.00 984.50 893.50 618.00 269.00 49.50 3.00 4760.50
1913 0.00 0.00 34.50 333.00 571.50 789.50 990.50 1023.00 678.50 242.50 42.50 0.00 4705.50
1914 0.00 5.00 120.00 382.00 669.50 758.00 1116.50 1073.00 608.00 388.00 63.50 0.00 5183.50
1915 0.00 1.00 168.00 480.50 560.50 820.86 a 1019.50 1191.50 694.00 396.50 33.00 2.00 5367.36
1916 0.00 0.00 44.50 348.00 512.50 710.50 857.00 1009.50 705.00 339.50 46.50 0.00 4573.00
1917 0.00 0.00 10.00 183.50 575.50 729.00 1070.00 1102.50 760.00 455.50 105.00 26.50 5017.50
1918 0.00 3.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 415.83 b 48.62 a 9.96 c 477.41
1919 0.00 s 1.00 70.00 324.31 a 491.87 a 688.93 b 976.50 c 970.54 e 598.45 a 276.93 a 38.50 0.00 k 4437.03
1920 13.50 3.00 0.00 z 0.00 z 0.00 z 509.50 i 1134.37 d 1019.26 b 487.50 f 234.80 d 14.40 e 0.00 c 2419.33
1921 0.00 a 1.00 84.22 a 234.23 d 418.50 k 0.00 z 0.00 z 0.00 z 531.43 b 262.50 k 59.50 0.00 f 910.38
1922 0.00 0.00 10.50 164.50 g 514.48 e 925.00 1110.26 d 1007.50 b 740.40 e 294.00 i 0.00 z 0.00 z 4308.14
1923 0.00 z 0.00 a 91.97 a 304.50 g 615.00 774.50 1102.00 1068.50 813.00 382.69 b 46.73 d 0.00 a 4894.39
1924 0.00 7.00 98.00 323.00 803.93 a 834.00 1126.50 1075.00 761.50 364.50 33.50 42.00 5468.93
1925 2.00 21.00 134.00 403.50 691.00 881.50 1203.50 1013.00 714.50 338.50 20.50 0.00 5423.00
1926 0.00 26.50 246.50 468.00 617.00 980.00 1206.00 1041.00 546.00 385.00 91.50 14.50 5622.00
1927 0.00 4.00 67.50 280.50 529.00 877.50 1128.00 1036.00 633.50 319.50 28.00 8.50 4912.00
1928 5.00 0.00 137.00 249.00 715.00 831.50 1135.00 1021.00 749.50 342.00 44.00 1.00 5230.00
1929 0.00 0.00 104.50 247.50 612.00 770.50 1041.00 1120.50 665.50 402.50 31.50 1.55 a 4997.05
1930 0.00 7.50 159.00 447.00 585.50 739.50 1086.50 1079.50 731.00 279.50 45.00 0.00 5160.00
1931 0.00 2.59 a 95.50 362.50 685.10 a 800.00 1111.50 1071.50 677.14 b 382.91 d 50.00 0.00 5238.74
1932 0.00 22.27 a 104.50 389.42 d 582.00 891.21 a 738.00 f 985.80 a 705.00 371.50 60.00 32.72 d 4144.42
1933 6.95 b 7.84 c 72.16 b 325.50 450.00 760.50 1024.00 1048.32 a 571.50 380.00 65.00 14.50 4726.26
1934 3.50 f 11.85 b 214.50 516.21 a 661.16 b 885.56 c 813.00 f 1073.93 c 539.40 e 424.46 e 106.61 b 2.00 4435.66
1935 2.14 b 0.00 54.50 258.50 602.00 596.50 f 966.00 907.02 b 744.00 315.68 a 4.29 b 0.00 l 3854.12
1936 0.00 2.07 a 49.08 a 408.50 704.45 b 771.72 a 1023.00 1010.00 671.79 b 389.00 0.00 8.00 5037.61
1937 0.00 0.00 51.00 220.00 555.50 711.00 1058.50 894.00 732.50 430.50 46.67 c 0.00 4699.67
1938 0.00 0.00 36.50 351.00 628.50 844.50 1115.50 930.50 795.50 360.00 39.50 2.00 5103.50
1939 2.00 0.00 123.50 379.00 628.50 748.50 1061.50 1057.62 a 736.00 376.50 46.00 18.00 5177.12
1940 0.00 d 2.50 181.72 b 366.50 689.75 c 932.50 1058.81 b 1033.00 799.00 373.15 d 5.50 1.50 5443.93
1941 0.00 a 4.00 207.38 b 444.50 604.00 756.50 1083.00 919.00 551.50 366.50 103.00 10.33 a 5049.71
1942 0.00 a 0.00 83.50 370.00 505.00 705.50 1067.50 1078.50 768.62 a 378.50 5.50 0.00 a 4962.62
1943 1.07 b 0.00 87.00 405.50 509.50 699.00 1023.50 937.48 b 771.00 358.22 d 38.50 19.63 a 4850.41
1944 2.50 3.00 97.50 367.50 635.00 795.00 1032.00 892.00 686.90 a 414.50 41.50 0.00 4967.40
1945 2.50 6.22 a 87.83 a 257.07 a 583.00 754.66 a 1057.62 a 1001.30 a 611.38 a 390.60 a 43.50 1.00 4796.68
1946 0.00 d 0.00 d 27.50 h 196.00 g 699.00 715.50 979.50 959.00 619.50 228.50 0.50 4.00 4205.50
1947 0.00 8.00 145.00 387.50 742.50 720.00 935.50 864.50 643.50 269.50 26.50 0.00 j 4742.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 806.50 854.00 777.07 a 596.00 207.00 3.00 0.00 3243.57
1949 0.00 0.00 27.90 a 345.50 696.50 763.50 969.00 964.50 693.00 272.00 97.50 8.00 4837.40
1950 0.00 0.50 21.50 188.00 479.00 717.00 997.00 986.50 739.00 229.00 16.50 0.00 4374.00
1951 4.00 3.00 44.00 309.00 541.50 746.50 1006.50 982.00 660.50 275.50 5.50 0.00 4578.00
1952 0.00 0.00 63.50 312.00 604.00 743.00 1026.50 1008.00 767.00 485.50 26.00 0.00 5035.50
1953 40.00 36.00 129.00 263.50 532.50 646.00 986.50 930.50 696.00 400.50 87.50 9.50 4757.50
1954 3.50 14.50 38.23 a 168.00 581.50 662.50 909.50 880.50 660.00 274.50 136.00 0.00 4328.73
1955 0.00 1.00 16.50 168.50 462.50 778.50 890.00 974.00 699.50 310.00 32.00 0.00 4332.50
1956 0.50 0.00 38.00 351.00 685.50 676.50 1056.50 999.00 697.00 334.50 27.50 12.50 4878.50
1957 0.00 4.50 46.50 335.00 743.00 812.50 945.50 880.00 738.00 268.00 21.00 0.00 4794.00
1958 0.00 41.00 73.00 280.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 394.50
Period of Record Statistics
MEAN 1.71 5.87 88.56 327.52 597.13 774.20 1030.08 998.03 676.31 345.03 47.50 5.36 4906.67
S.D. 5.45 9.16 55.81 80.24 79.97 74.36 83.86 81.91 75.08 72.36 33.26 9.72 318.46
SKEW 5.83 2.13 0.68 0.02 0.16 0.51 0.02 -0.41 -0.38 0.03 1.04 2.47 0.14
MAX 40.00 41.00 246.50 516.21 803.93 980.00 1253.50 1191.50 813.00 527.00 151.61 43.00 5622.00
MIN 0.00 0.00 5.00 168.00 415.50 638.00 854.00 777.07 473.50 195.50 0.00 0.00 4303.47
NO YRS 63 64 63 60 61 62 63 64 65 64 64 61 48