ALDER DAM CAMP, WASHINGTON

Monthly Total Heating Degree Days

(450094)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195402
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
1917 0.00 z 827.83 e 872.50 649.00 510.50 307.50 112.50 107.50 234.00 461.50 572.00 706.50 5361.33
1918 776.50 778.00 736.00 556.50 467.50 0.00 z 116.00 160.50 180.50 445.50 670.50 834.00 5721.50
1919 829.00 757.00 723.50 525.50 449.00 315.00 157.50 148.50 292.00 578.00 667.50 983.50 6426.00
1920 886.50 812.00 729.50 658.00 515.50 275.50 117.50 126.50 307.50 309.50 k 670.00 773.00 5871.50
1921 843.00 722.00 716.50 611.00 470.50 224.50 218.50 163.50 363.00 474.00 640.50 929.00 6376.00
1922 1057.10 a 832.50 829.00 664.00 436.50 181.00 128.00 142.00 236.00 477.00 778.00 961.50 6722.60
1923 867.50 843.50 736.50 526.50 441.50 263.50 131.00 159.00 377.00 576.50 717.00 856.00 6495.50
1924 917.00 687.00 838.00 670.00 420.50 323.00 243.00 258.50 0.00 z 390.50 g 742.00 995.00 6094.00
1925 816.50 637.00 716.50 508.00 319.00 272.50 110.50 198.50 280.00 531.00 689.00 733.50 5812.00
1926 819.00 609.50 539.00 382.00 386.00 200.50 138.00 146.00 354.00 428.50 572.50 862.00 5437.00
1927 846.00 705.50 745.00 581.00 499.00 212.50 135.00 143.00 302.00 453.50 645.50 943.00 6211.00
1928 776.50 725.00 618.00 570.50 310.00 244.50 137.50 183.00 336.50 503.00 672.00 899.50 5976.00
1929 1054.50 956.00 704.00 651.50 427.00 268.50 175.50 162.00 284.50 433.00 773.00 811.50 6701.00
1930 1197.00 670.00 676.00 489.00 512.50 320.00 228.50 181.00 316.15 d 611.00 833.50 873.50 6908.15
1931 505.00 i 700.50 640.00 507.50 322.50 265.50 135.50 168.50 295.00 531.00 802.00 839.50 5207.50
1932 903.50 800.00 648.00 518.50 437.50 223.00 207.00 152.50 282.00 451.00 603.50 1010.00 6236.50
1933 922.50 873.00 707.50 613.50 521.00 317.50 202.00 131.00 350.50 495.00 699.00 730.00 6562.50
1934 735.50 611.50 554.00 384.50 325.00 255.00 177.00 117.50 304.00 466.00 615.00 824.50 5369.50
1935 903.00 679.00 818.50 605.00 442.50 253.50 175.50 181.50 218.50 592.00 875.50 873.50 6618.00
1936 837.50 975.00 780.00 491.00 340.50 220.50 158.50 130.00 311.50 475.50 877.00 848.50 6445.50
1937 1219.00 817.50 662.00 617.50 426.00 207.50 135.00 192.00 249.50 427.00 625.50 809.00 6387.50
1938 872.50 701.00 738.00 505.50 393.50 205.50 98.00 199.00 157.50 471.00 782.50 872.00 5996.00
1939 804.00 811.00 688.00 448.00 376.50 294.00 141.50 102.50 238.50 466.00 620.00 702.50 5692.50
1940 754.00 662.50 585.90 a 453.50 259.50 182.00 108.50 92.00 160.00 377.50 791.50 801.00 5227.90
1941 795.50 620.50 544.00 445.50 373.50 243.00 72.00 119.00 347.50 494.00 616.50 816.00 5487.00
1942 932.77 c 732.00 704.00 478.00 402.50 287.50 64.50 85.00 222.00 424.50 743.00 804.00 5879.77
1943 997.00 661.00 730.00 440.00 439.50 271.00 93.00 129.00 138.50 428.50 604.50 911.00 5843.00
1944 811.17 a 757.00 718.50 524.50 398.00 240.00 a 113.50 108.00 163.50 352.00 622.78 c 761.50 5570.44
1945 735.50 676.50 739.50 598.00 291.50 257.50 52.00 59.50 214.00 361.00 676.50 768.50 5430.00
1946 796.00 700.00 703.00 535.50 250.00 255.00 97.00 73.00 193.50 543.00 702.50 806.00 5654.50
1947 947.00 591.50 547.09 d 439.00 238.50 235.50 112.63 a 123.00 161.50 405.00 675.00 695.20 d 5170.93
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 168.21 b 152.50 165.50 261.50 453.00 749.50 942.50 2892.71
1949 1145.00 839.50 686.00 484.00 307.50 259.00 156.00 138.00 160.50 557.50 472.50 855.00 6060.50
1950 1235.50 752.00 752.00 603.00 454.00 204.50 105.00 78.00 188.00 489.50 667.00 642.00 6170.50
1951 895.00 695.00 824.50 460.00 354.50 169.50 76.00 118.50 147.50 447.00 636.50 920.50 5744.50
1952 916.50 722.50 742.50 474.50 357.50 293.00 100.50 102.50 148.00 302.00 679.00 750.50 5589.00
1953 660.50 687.50 703.50 550.00 402.00 320.50 117.50 94.50 172.76 a 376.50 540.00 722.00 5347.26
1954 929.00 455.00 h 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 929.00
Period of Record Statistics
MEAN 898.12 739.69 705.46 533.86 396.62 251.02 135.13 138.91 248.58 467.37 684.32 834.24 5985.44
S.D. 139.16 92.31 82.66 79.54 77.57 44.69 45.26 41.40 72.83 70.12 90.02 91.30 493.30
SKEW 0.98 0.66 -0.33 0.06 -0.28 -0.10 0.56 0.42 0.06 0.00 0.21 0.02 0.09
MAX 1235.50 975.00 872.50 670.00 521.00 323.00 243.00 258.50 377.00 611.00 877.00 1010.00 6908.15
MIN 660.50 591.50 539.00 382.00 238.50 168.21 52.00 59.50 138.50 302.00 472.50 642.00 5170.93
NO YRS 35 36 36 36 36 36 37 37 36 35 37 37 31