SKYKOMISH, WASHINGTON

Monthly Total Heating Degree Days

(457708)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 195508
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
1935 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 67.68 a 135.00 513.05 a 852.00 849.00 2416.73
1936 913.00 1108.00 841.00 518.50 292.90 b 151.50 94.00 95.50 204.50 f 420.80 d 745.86 a 898.48 a 6079.54
1937 1134.50 f 954.50 756.92 a 563.57 b 263.50 a 109.00 89.00 108.00 167.07 a 201.50 h 669.00 e 899.52 a 4580.07
1938 995.21 b 791.28 c 765.18 a 423.33 c 302.85 e 118.39 b 64.00 130.00 85.18 b 429.72 b 858.00 912.90 b 5876.04
1939 879.50 912.00 775.00 a 269.50 g 375.44 d 292.50 22.00 f 87.00 227.07 a 450.69 e 664.00 814.27 a 5477.47
1940 921.50 768.00 638.50 473.50 236.63 a 174.50 109.00 104.50 147.12 d 298.00 j 831.00 671.00 h 4404.25
1941 882.50 660.00 556.93 b 447.32 b 362.50 208.50 0.00 z 93.00 346.07 b 523.50 678.10 a 920.50 5678.93
1942 968.50 803.00 778.58 e 507.00 284.00 i 267.32 b 81.50 69.50 233.50 295.00 k 521.50 l 934.00 4642.90
1943 1157.00 787.50 d 788.78 d 522.78 c 453.12 a 240.50 f 133.50 147.50 0.00 z 0.00 z 0.00 z 0.00 z 3990.17
1944 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 0.00 z 0.00 z 0.00
1945 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 0.00 z 0.00 z 0.00
1946 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 0.00 z 0.00 z 0.00
1947 734.50 i 0.00 z 0.00 z 0.00 z 39.50 u 144.00 i 103.33 d 140.10 e 200.50 367.50 j 426.00 n 483.00 o 443.93
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 107.50 h 124.00 88.87 a 255.00 e 330.00 l 393.00 p 659.00 m 467.87
1949 949.00 j 542.50 m 525.50 k 339.50 k 0.00 z 0.00 z 153.50 119.50 124.00 h 199.00 u 208.50 r 438.00 r 273.00
1950 704.00 p 630.50 i 557.50 k 266.50 q 0.00 z 69.00 p 54.00 f 69.50 102.00 m 85.00 z 283.50 t 317.50 t 69.50
1951 1026.44 d 0.00 z 896.02 e 406.00 f 172.50 q 69.50 t 57.87 a 93.53 b 0.00 z 0.00 z 0.00 z 0.00 z 2073.86
1952 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 45.00 w 67.00 n 105.73 c 0.00 z 0.00 z 0.00 z 946.69 e 1052.42
1953 802.00 490.00 j 266.50 s 625.80 e 389.16 c 220.00 h 100.50 61.50 54.00 m 192.00 s 275.50 r 450.00 o 1978.96
1954 715.50 k 461.50 l 474.50 m 340.00 o 171.00 r 133.50 q 193.15 e 177.00 126.00 n 0.00 z 0.00 z 0.00 z 370.15
1955 504.50 o 565.50 j 578.50 l 417.00 l 213.50 r 78.50 s 200.90 e 155.00 0.00 z 0.00 z 0.00 z 0.00 z 355.90
Period of Record Statistics
MEAN 949.52 848.04 755.21 510.23 334.51 188.82 115.71 106.30 199.61 467.55 756.85 896.92 5876.04
S.D. 102.89 138.19 101.42 64.69 72.58 70.98 44.60 32.80 77.06 47.70 88.92 44.40 0.00
SKEW 0.68 0.66 -0.75 0.42 0.21 0.35 0.72 0.56 0.41 0.28 0.09 -0.84 0.00
MAX 1157.00 1108.00 896.02 625.80 453.12 292.50 200.90 177.00 346.07 523.50 858.00 946.69 5876.04
MIN 802.00 660.00 556.93 423.33 236.63 109.00 57.87 61.50 85.18 420.80 664.00 814.27 5876.04
NO YRS 9 8 9 8 8 7 13 18 9 5 7 8 1