SHEMYA AFB, AK

Monthly Sum of Heating Degree Days (Degrees Fahrenheit)

(508419)

Base Temperature = 65 F

File last updated on Apr 19, 2015
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.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
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)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
1943-----z-----z-----z-----z-----z-----z504.50 417.00 486.00 679.00 910.00 1051.50 4048.00f
19441106.50 1004.00a1007.00 892.50a827.50 649.00 586.00 477.50 526.00 644.00 808.00 997.50 9525.50
19451039.50 901.50a1068.21c842.50 824.50 695.00 556.00 483.50 520.50 733.50 792.50 898.50a9355.71
19461072.00 1009.00 1056.00 881.81c838.50a673.50a610.50 440.50a483.50 717.50 866.50 928.50 9577.81
19471073.00 987.00 989.48b870.56d861.50 755.50 628.00a587.50 589.32b714.00a846.00 1014.50 9916.36
19481049.00 942.00 985.50 833.50 815.00 698.50 548.50 459.50 510.00 765.00 873.50 992.00 9472.00
19491075.50 948.50 1044.00 920.00 823.50 694.00 595.50 509.50 539.00 727.00 892.00 1024.00 9792.50
1950905.00 877.50 1015.50 912.00 845.50 667.00 567.00 459.00 543.00 716.00 830.50 932.00 9270.00
19511004.50 907.00 1002.00 924.50 793.45b666.50 604.00 462.00 489.50 673.50 823.50 967.00 9317.45
19521008.00 1006.50 1035.50 909.50 798.50 710.50 570.50 467.50 504.50 664.00 909.36b1060.00 9644.36
19531066.50 1034.00 1041.50 909.00 877.00 721.00 563.00 508.50 526.50 733.00 876.50 1067.50 9924.00
19541051.50 940.50 1023.00 878.00 850.00 725.50 615.00 -----z-----z-----z-----z-----z6083.50e
1955-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
1956-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
1957-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
1958-----z-----z-----z-----z-----z-----z-----z-----z509.00 692.00 876.96e1012.50 3090.46h
1959929.50a943.00a963.00a845.14b793.89d688.50a541.00a407.68c489.00 698.50 896.50 1082.00 9277.71
19601046.00 1031.50 953.50 906.50 833.50 674.50 549.50 451.50 489.00 744.50 960.00 1069.50 9709.50
19611054.00 936.50 1077.50 873.50 834.00 717.50 633.50 526.00 512.00 709.50 914.50 1000.00 9788.50
1962989.00 924.50 991.00 839.50 794.50 654.50 509.50 513.00 536.00 734.50 921.00 944.50 9351.50
1963944.50 888.00 966.00 890.50 791.50 677.00 576.00 550.00 520.00 705.00 823.00 998.50 9330.00
19641095.50 1088.00 1013.50 938.50 846.00 677.50 647.00 552.50 608.50 767.00 920.50 945.00 10099.50
19651059.00 904.50 1000.50 874.50 810.50 682.50 582.00 503.00 568.00 731.00 876.00 985.00 9576.50
19661047.50 987.50 1041.00 936.50 848.50 719.00 630.50 524.50 519.00 756.00 829.00 986.00 9825.00
19671058.00 991.50 989.50 914.50 795.50 680.00 571.00 458.50 568.00 742.00 894.00 1005.50 9668.00
1968979.50 1020.50 1017.00 944.50 830.50 687.00 584.50 520.50 548.00 767.00 942.50 982.00 9823.50
19691028.00 986.50 1031.00 923.50 840.00 684.00 534.00 443.00 477.50 741.50 884.00 1099.50 9672.50
19701032.50 981.50 1064.50 904.50 827.50 686.00 618.00 514.00 507.50 705.00 833.00 1022.50 9696.50
19711058.00 1024.50 1075.50 923.50 881.00 675.00a641.00 571.00 567.00 749.00 854.50 1014.00 10034.00
19721059.50 919.50 1008.00 867.50 825.50 649.50 570.50 479.00 528.50 738.50 965.50 981.50 9593.00
19731108.00 996.00 1008.50 917.96d-----z-----z-----z-----z-----z-----z-----z-----z4030.46h
1974-----z-----z-----z-----z803.00 622.50 539.00 491.00 481.00 689.50 854.50 1115.50 5596.00d
19751110.50 1046.00 1141.00 927.50 871.50 710.50 586.00 499.50 491.00 712.50 850.00 990.50 9936.50
1976984.50 1003.00 1084.50 961.00 837.00 710.00 608.00 544.50 567.00 743.00 891.00 1034.00a9967.50
19771052.50 1056.50 1160.50 937.50 822.50 637.50 517.50 379.50 432.50 724.00 -----z-----z7720.50b
1978-----z-----z-----z-----z-----z-----z-----z470.00 516.00 696.50 801.50 961.00a3445.00g
19791036.00a863.00a998.50 897.50 818.00 681.00 582.50 486.50 543.50 764.00 930.00 1018.50 9619.00
19801061.00 1082.00 1021.50 945.00 808.50 769.00 561.50 488.00 482.00a790.00 911.50 985.50 9905.50
19811209.50 943.00a1054.50a859.00a803.50 690.50 484.50 378.50 462.50 630.50 809.50a978.50 9304.00
19821020.52b848.00 929.50a855.00 773.00 681.50 575.00 503.00a540.00a706.00 818.21b1073.50 9323.23
19831041.43c951.00 988.00 896.00 833.00 665.50a564.00 470.50 530.00 633.50a898.50 904.50a9375.93
19841054.50a978.00a971.50a876.50 784.00 680.50 523.50a466.00 463.00a618.62b844.50 989.50a9250.12
19851039.00 938.50 1072.24b916.00 872.00 698.00 607.50 532.50 517.00 601.03b781.00 992.50 9567.28
19861057.50 922.50 971.00 846.00 801.50 650.50 511.00 379.50 420.50 623.50 805.50 965.50a8954.50
19871109.00 967.50 952.50 895.00 785.00a658.00a601.50 551.00 537.00 695.50 875.00 1010.17b9637.17
19881090.34b1051.00 1090.50 914.50a807.00a677.00 568.00 476.50 435.50 648.00 880.50 1018.50 9657.34
19891077.00 906.00 963.50 844.00 787.50 666.00 511.50 -----z497.50 616.50a821.00 914.50 8605.00a
19901056.00 957.00a969.50 827.00 741.00a645.50 498.50 443.50 514.00a640.00a712.57b834.00a8838.57
1991981.50 877.50b957.00 840.00 779.00 588.00 532.00 483.50 479.00 619.50 786.50 1000.71c8924.21
19921064.50a912.07b1040.50 -----z-----z609.00a-----z-----z-----z-----z849.37d959.00a5434.44f
1993-----z848.00 -----z916.50 789.50 606.50 505.00 417.00 495.50 679.50 859.00 1072.76b7189.26b
19941030.00 870.50 1023.00a857.00a830.50 672.50 586.50 -----z524.00 655.86b811.50 1063.00 8924.36a
19951097.00a942.50 950.00 -----z-----z-----z-----z-----z-----z-----z-----z-----z2989.50i
Period of Record Statistics
MEAN1046.93 959.66 1017.93 892.85 819.42 678.40 568.88 482.48 512.90 700.76 861.10 998.75 9565.85
S.D.51.97 61.70 50.18 35.43 30.09 35.15 41.88 49.76 39.02 48.51 51.66 56.08 305.47
SKEW-0.18 0.12 0.67 -0.18 0.00 -0.10 -0.11 -0.21 -0.05 -0.38 -0.25 -0.34 -0.46
MAX1209.50 1088.00 1160.50 961.00 881.00 769.00 647.00 587.50 608.50 790.00 965.50 1115.50 10099.50
MIN905.00 848.00 929.50 827.00 741.00 588.00 484.50 378.50 420.50 601.03 712.57 834.00 8838.57
YRS45.00 46.00 45.00 44.00 44.00 45.00 45.00 43.00 46.00 46.00 46.00 46.00 38.00