DARRINGTON RS, WASHINGTON

Monthly Total Heating Degree Days

(451992)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1911 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 136.50 z 0.00
1912 1001.50 730.50 761.50 546.00 243.41 d 0.00 z 0.00 z 0.00 z 244.00 563.50 0.00 z 0.00 z 4090.41
1913 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 9.00 i 0.00 z 0.00 z 539.50 726.00 0.00 z 1265.50
1914 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 185.00 g 104.62 c 77.00 o 231.50 f 269.50 l 543.00 f 1065.48 d 1170.11
1915 926.50 680.00 546.00 416.54 d 336.00 247.76 a 141.50 136.06 d 276.50 491.00 810.50 933.00 5941.35
1916 762.50 n 834.50 826.48 c 532.00 463.97 a 217.00 177.00 110.00 251.00 628.50 587.00 i 1062.50 5102.95
1917 1069.50 886.00 0.00 z 641.38 a 467.00 301.61 b 128.00 67.50 208.50 f 496.50 628.00 871.00 5556.49
1918 873.00 850.00 610.00 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 2333.00
1919 772.23 c 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 772.23
1920 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 361.00 j 419.50 g 761.50 761.50
1921 869.00 773.00 746.00 583.50 341.00 d 149.50 122.00 104.00 338.50 478.50 750.00 1028.50 6283.50
1922 1114.00 937.00 856.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2907.50
1923 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
1924 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
1925 935.96 e 0.00 z 517.00 i 448.50 184.00 g 234.81 d 40.00 0.00 z 0.00 z 248.00 q 734.44 c 494.50 k 2393.71
1926 889.91 b 667.13 e 569.92 e 353.65 d 197.00 l 88.00 h 72.00 104.50 312.00 392.00 576.00 748.50 f 3937.12
1927 395.50 t 0.00 z 0.00 z 543.75 b 461.90 a 152.68 b 81.12 a 94.03 a 0.00 z 475.50 747.00 1130.00 3685.98
1928 910.62 c 700.50 629.30 a 257.50 o 0.00 z 208.20 e 74.92 a 141.00 306.11 c 0.00 z 715.80 e 0.00 z 3686.45
1929 1158.62 c 1095.50 d 817.37 a 675.54 b 360.50 242.50 110.05 a 124.60 e 236.11 c 453.50 f 847.50 942.40 a 6610.68
1930 602.50 q 0.00 z 677.50 421.50 414.00 226.50 g 157.50 99.00 215.00 c 549.96 d 768.50 622.00 i 3302.96
1931 781.00 735.50 688.50 497.00 253.50 221.38 a 116.50 155.00 184.50 f 485.50 833.00 880.50 5647.38
1932 829.00 g 893.50 724.50 482.50 356.50 186.21 a 198.00 117.00 217.00 465.50 639.50 955.50 5235.71
1933 970.00 975.50 773.00 549.50 318.50 k 219.00 143.63 a 74.29 b 323.33 c 493.50 649.62 d 830.50 6001.88
1934 785.00 543.00 542.50 286.00 265.50 210.00 136.00 77.50 a 254.00 366.00 538.50 774.50 4778.50
1935 898.00 609.50 693.00 281.00 o 409.00 236.25 b 146.50 121.50 177.00 0.00 z 817.00 846.00 4953.75
1936 892.50 1063.50 844.50 480.00 297.00 139.00 99.00 63.50 234.50 373.00 717.50 882.50 6086.50
1937 1243.00 749.50 464.50 572.50 332.00 148.50 120.00 164.00 213.50 400.70 d 702.50 961.50 6072.20
1938 1000.00 753.50 0.00 z 426.50 306.50 128.50 80.00 169.47 a 124.00 459.50 804.50 901.00 5153.47
1939 822.00 854.50 710.00 445.00 319.00 232.50 111.08 a 63.50 200.00 447.00 613.50 702.27 e 5520.35
1940 814.78 a 680.50 541.00 404.50 215.00 149.50 76.50 70.00 127.50 368.00 808.45 a 570.00 i 4255.73
1941 750.20 a 546.00 481.00 381.50 332.00 201.00 32.50 73.50 291.00 436.50 655.00 851.39 c 5031.59
1942 807.50 694.00 678.38 a 186.00 p 287.00 81.00 k 33.14 b 0.00 z 153.00 421.50 813.00 678.00 g 3887.52
1943 1071.50 659.00 719.72 a 437.00 373.15 d 174.50 f 67.50 88.19 b 91.61 b 398.00 666.00 929.50 5501.16
1944 969.00 793.00 725.73 c 450.52 a 325.50 a 161.11 c 82.84 b 63.00 f 89.50 g 221.00 g 661.61 b 907.27 a 5076.58
1945 832.19 b 703.04 e 747.50 606.21 a 186.50 214.50 33.50 39.50 158.65 d 176.00 k 500.00 l 671.00 i 3521.59
1946 417.00 p 409.00 m 458.00 k 309.00 k 166.00 i 41.00 w 56.00 g 63.66 c 161.50 f 0.00 z 0.00 z 470.50 o 63.66
1947 845.50 h 495.50 i 385.50 l 316.00 i 200.00 i 83.00 p 0.00 z 11.00 87.50 i 383.00 i 480.50 k 481.00 m 11.00
1948 700.50 i 0.00 z 531.00 j 336.00 l 213.50 m 0.00 z 124.00 e 88.02 c 174.00 k 264.00 o 500.00 k 760.00 i 212.02
1949 685.50 n 673.50 g 452.00 k 396.50 f 199.50 h 257.14 b 129.17 d 56.00 j 98.50 k 394.50 l 263.00 m 434.00 q 386.31
1950 1464.15 e 695.50 f 520.50 j 312.00 m 371.50 f 95.50 i 57.50 g 63.00 f 90.50 r 433.50 f 397.50 p 373.00 o 1464.15
1951 626.00 l 475.00 l 531.00 l 240.50 m 105.00 p 73.50 l 59.62 e 92.00 92.50 q 292.00 m 348.00 p 389.50 r 151.62
1952 687.50 k 503.50 k 366.50 o 218.50 p 164.50 o 158.00 i 59.13 d 89.26 b 42.50 p 148.50 p 256.00 t 211.00 w 148.39
1953 501.00 k 411.50 l 334.50 q 331.50 h 338.50 244.14 a 92.50 62.50 196.03 a 407.00 625.00 803.86 b 2769.53
1954 1041.00 740.00 780.50 625.00 301.50 281.00 143.50 134.00 200.00 476.50 557.00 870.00 6150.00
1955 894.50 829.50 916.50 639.50 482.50 224.50 186.00 118.00 232.50 480.00 933.50 975.50 6912.50
1956 968.50 955.00 871.50 432.93 a 216.00 204.50 53.50 68.50 190.00 550.00 777.50 908.00 6195.93
1957 1190.00 855.00 742.50 474.50 204.00 143.50 56.00 43.50 86.00 517.00 755.50 859.00 5926.50
1958 839.50 623.00 758.00 527.50 185.50 78.50 8.50 42.50 239.50 439.50 825.50 813.50 5381.00
1959 957.50 777.00 760.00 533.00 399.50 173.00 84.00 148.00 278.00 478.50 809.50 917.00 6315.00
1960 1010.50 810.00 740.00 535.50 405.00 200.17 a 96.50 207.00 277.50 d 318.50 k 497.00 k 439.00 p 4282.17
1961 500.50 l 440.00 j 468.00 i 394.00 j 255.50 j 176.40 e 93.00 47.50 366.72 a 558.50 824.44 c 939.76 d 3006.33
1962 986.00 731.50 756.18 c 458.00 449.50 a 245.50 165.00 141.00 202.00 469.50 661.55 a 803.62 e 6069.35
1963 1121.96 e 586.50 714.00 541.50 368.50 248.00 154.50 85.00 132.93 a 424.50 713.50 859.45 b 5950.34
1964 881.00 792.00 758.00 635.00 c 435.00 247.50 115.00 189.00 281.90 a 425.00 813.00 1028.34 b 6600.74
1965 971.50 787.00 725.00 0.00 z 473.50 294.00 84.22 a 113.00 303.50 385.50 620.00 568.00 j 4757.22
1966 969.35 e 789.19 a 753.00 499.50 205.50 i 251.50 123.48 a 100.50 173.65 d 359.50 j 440.00 k 520.50 j 3660.17
1967 652.50 h 754.92 b 803.50 605.50 360.50 115.50 71.00 30.00 130.50 491.72 b 691.50 794.50 f 4054.65
1968 990.93 b 553.00 f 656.50 434.50 h 345.43 c 0.00 z 79.50 157.00 237.50 567.00 717.00 1025.87 d 4776.73
1969 1229.67 a 840.50 724.50 542.50 261.00 109.00 149.50 174.12 a 242.88 d 546.24 b 669.50 837.50 6326.91
1970 920.50 631.00 713.50 650.50 376.50 141.00 85.52 b 82.00 317.31 d 419.50 j 415.00 l 742.00 h 3917.82
1971 765.50 h 769.50 884.50 583.50 348.00 311.00 124.00 33.50 305.36 b 572.50 755.50 1049.87 a 5737.22
1972 1137.59 c 858.50 738.50 650.50 312.00 238.00 93.53 b 83.00 373.93 b 580.70 c 0.00 z 1031.35 e 6097.60
1973 773.00 f 435.00 k 694.50 533.50 349.00 252.50 118.00 182.50 202.50 510.50 821.50 777.50 4442.00
1974 995.88 c 747.50 730.50 505.50 474.50 174.50 128.50 82.50 0.00 z 432.40 b 636.11 c 409.00 n 4907.88
1975 922.25 a 621.50 g 555.00 k 442.50 j 340.45 c 248.57 b 51.50 107.00 g 163.00 489.59 b 781.55 a 717.00 h 2996.91
1976 630.50 h 607.00 h 624.00 h 370.00 j 370.28 d 299.00 131.50 158.00 171.50 491.00 0.00 z 868.00 a 2489.28
1977 1027.50 651.50 789.50 463.50 428.00 176.00 164.50 78.50 308.50 527.00 831.00 921.50 6367.00
1978 866.00 659.00 633.00 501.00 424.91 b 141.00 88.50 114.00 273.10 a 351.00 f 592.00 j 654.00 k 3700.52
1979 890.50 f 840.50 642.96 d 531.50 234.50 154.82 b 43.29 b 36.50 121.61 b 405.07 a 788.89 c 350.00 p 3799.64
1980 616.50 n 513.50 i 475.50 k 264.50 m 251.50 i 208.39 b 83.00 106.50 215.56 c 332.00 h 440.00 j 572.00 j 613.45
1981 448.00 l 523.50 h 361.00 m 377.00 i 331.24 d 273.10 a 103.50 45.50 192.22 c 426.50 g 344.50 m 878.73 e 1824.30
1982 988.50 824.50 699.50 622.00 393.18 a 122.50 132.00 85.00 179.00 474.50 819.00 878.00 6217.68
1983 757.50 618.00 560.00 460.50 249.55 a 197.50 130.00 75.50 298.50 508.00 639.50 806.50 i 4494.55
1984 577.50 k 494.00 i 355.50 l 581.79 b 295.50 m 210.50 83.00 62.00 258.00 557.00 765.50 1099.00 3616.79
1985 1019.00 849.00 748.00 471.72 a 296.00 167.50 8.50 61.50 254.00 519.00 1033.00 1011.50 6438.72
1986 761.00 771.00 540.00 562.50 306.00 115.00 93.50 12.00 229.00 366.50 378.00 l 555.50 l 3756.50
1987 555.50 m 408.50 j 414.50 j 375.00 b 269.70 a 142.50 65.00 64.00 143.50 393.00 291.50 o 0.00 z 1452.70
1988 529.00 m 718.50 708.00 453.50 313.00 187.50 111.50 83.00 231.72 a 355.00 700.50 544.00 k 3862.22
1989 583.50 j 935.00 734.00 217.00 k 342.50 0.00 z 70.00 75.00 112.50 442.50 670.50 479.00 m 3382.00
1990 514.50 l 824.50 380.50 l 263.00 i 302.50 159.50 37.50 45.50 83.00 352.00 k 471.00 j 656.50 l 1452.50
1991 662.50 j 406.00 i 428.50 m 337.00 i 350.00 214.50 41.50 74.50 140.00 457.00 370.00 m 752.78 a 2030.28
1992 466.00 l 361.50 j 330.00 231.00 h 106.50 i 82.50 55.00 42.00 245.50 418.00 342.50 o 578.50 m 1173.00
1993 724.50 k 468.00 k 570.40 a 295.50 l 177.50 234.50 0.00 z 119.00 204.00 423.00 568.50 k 557.50 m 1728.40
1994 432.00 n 500.00 l 399.00 l 136.00 s 108.00 l 107.00 m 60.00 26.00 88.00 477.92 a 437.50 o 536.50 n 651.92
1995 0.00 z 0.00 z 0.00 z 0.00 z 136.00 o 125.00 0.00 z 0.00 z 54.00 291.00 o 418.50 l 244.50 v 179.00
1996 550.50 o 429.00 m 288.00 r 244.50 m 264.00 n 0.00 z 54.50 54.50 206.50 107.50 t 484.00 m 526.00 o 315.50
1997 481.50 p 522.50 j 491.00 k 320.50 n 304.50 148.00 k 121.50 38.50 63.50 p 359.00 k 303.50 q 626.00 k 464.50
1998 527.00 n 439.00 k 438.50 l 241.00 o 210.50 o 126.00 k 57.50 60.50 i 170.50 306.00 m 0.00 z 551.50 n 228.00
1999 733.00 f 532.50 i 703.81 d 396.00 f 425.06 e 166.00 h 65.50 g 14.00 m 104.00 h 324.00 h 476.50 g 844.15 e 1973.03
2000 938.94 e 722.10 d 348.50 o 273.50 h 279.60 e 85.50 j 46.50 e 0.00 z 80.00 k 822.10 e 386.50 f 915.69 e 3724.93
2001 816.33 d 730.80 c 632.06 d 521.67 c 332.70 c 200.19 d 28.00 k 54.80 c 78.50 l 332.50 l 692.40 e 554.50 l 3980.95
2002 885.00 759.00 828.00 525.50 388.00 78.00 k 48.50 k 33.00 j 184.00 490.50 660.50 835.00 5555.50
2003 765.00 462.50 j 688.50 358.50 h 251.00 i 117.00 42.33 e 20.00 l 123.50 f 419.00 842.88 d 690.00 g 2874.71
2004 961.00 577.50 f 614.63 e 240.50 i 179.50 i 103.00 f 0.50 o 30.00 l 258.50 477.52 e 475.50 k 471.00 m 2311.65
2005 967.56 e 741.50 634.35 d 339.50 h 252.77 e 243.50 53.50 i 27.00 p 279.50 489.69 d 763.80 e 546.00 n 4372.66
2006 498.50 k 569.50 g 688.50 371.00 g 303.00 109.00 36.37 e 16.00 m 142.00 470.50 740.50 729.50 f 2489.87
2007 769.00 f 470.00 j 501.00 f 187.00 r 66.50 t 77.00 l 0.00 t 13.50 n 56.00 w 293.50 m 364.00 o 411.50 p 0.00
2008 594.50 l 415.50 m 460.00 k 421.00 i 193.00 l 146.00 l 38.50 h 31.50 l 70.50 l 321.00 l 293.50 p 302.00 u 0.00
2009 341.00 u 546.00 i 613.00 i 324.50 j 0.00 z 0.00 z 0.00 z 25.50 j 73.50 h 380.00 i 516.00 g 1007.50 1007.50
2010 690.00 629.00 596.50 480.50 348.00 158.50 38.00 67.50 187.50 448.50 809.50 852.50 5306.00
2011 892.50 852.50 757.00 660.00 427.00 197.50 97.50 31.50 136.00 497.00 813.50 924.50 6286.50
2012 939.00 746.00 800.00 471.50 332.00 237.00 34.00 27.50 134.00 490.00 674.50 900.50 5786.00
2013 990.50 734.00 689.00 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 2413.50
Period of Record Statistics
MEAN 948.59 768.72 699.75 514.94 337.56 196.16 93.05 88.71 213.60 476.17 736.57 908.13 5997.57
S.D. 138.89 112.71 105.76 85.10 75.91 55.44 42.68 44.73 72.12 74.40 92.34 95.10 504.37
SKEW 0.99 0.49 -0.79 -0.14 -0.05 -0.07 0.22 0.59 0.00 1.52 0.31 0.29 -0.77
MAX 1464.15 1095.50 916.50 675.54 482.50 311.00 198.00 207.00 373.93 822.10 1033.00 1130.00 6912.50
MIN 690.00 543.00 330.00 286.00 177.50 78.50 8.50 11.00 54.00 355.00 538.50 702.27 4778.50
NO YRS 60 61 66 56 68 69 80 74 72 65 59 50 23