GREENWATER, WASHINGTON

Monthly Total Heating Degree Days

(453357)

Base Temperature = 65 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 198105
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
1939 615.50 j 885.00 924.00 586.00 427.00 358.50 175.00 127.00 326.00 578.50 750.00 852.00 5989.00
1940 926.00 804.00 680.00 572.50 341.50 228.50 155.00 148.50 210.00 497.50 899.50 929.00 6392.00
1941 966.00 734.00 613.00 522.69 d 445.50 284.00 94.00 136.50 383.00 547.00 708.00 948.50 6382.19
1942 1010.50 822.50 797.50 343.00 m 508.50 0.00 z 155.00 b 114.70 a 260.69 a 0.00 z 0.00 z 984.50 4653.89
1943 1088.58 e 795.00 857.84 b 564.00 383.00 h 368.50 176.50 233.00 0.00 z 0.00 z 188.00 v 987.35 a 5070.77
1944 1095.50 909.50 894.50 616.00 475.50 286.50 145.00 205.00 286.00 529.00 889.50 1054.00 7386.00
1945 1005.00 844.50 880.00 723.50 414.50 359.00 142.50 169.50 386.00 546.50 900.50 1060.50 7432.00
1946 1023.00 892.00 856.00 639.50 345.50 306.50 143.00 146.50 327.50 709.50 936.00 1012.00 7337.00
1947 1133.00 818.50 729.00 553.97 a 315.00 300.00 167.00 201.50 301.50 549.50 834.00 981.50 6884.47
1948 1064.50 969.00 891.00 724.50 512.00 223.50 218.50 196.50 370.50 628.50 875.50 1144.50 7818.50
1949 1334.50 985.00 865.00 663.50 359.50 330.50 249.00 184.50 285.00 696.50 690.50 1013.50 7657.00
1950 1352.00 962.50 915.50 740.50 535.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4505.50
1951 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
1952 0.00 z 0.00 z 0.00 z 0.00 z 421.50 368.50 144.00 184.50 251.50 466.00 959.00 0.00 z 2795.00
1953 915.00 813.50 814.50 652.00 493.50 400.00 167.50 165.50 290.50 538.00 746.50 932.50 6929.00
1954 1072.00 885.50 916.00 720.00 456.50 387.00 272.50 271.50 335.50 636.00 699.50 993.00 7645.00
1955 1022.00 917.00 1000.50 777.00 588.50 322.50 262.00 238.00 358.50 599.50 1008.50 1066.00 8160.00
1956 1089.50 1029.00 955.00 643.45 a 364.50 362.50 156.00 181.50 335.50 660.50 860.00 957.00 7594.45
1957 1206.00 898.50 834.00 591.50 356.50 265.50 232.00 245.00 186.00 602.50 859.00 911.50 7188.00
1958 952.00 653.00 799.50 620.50 264.00 174.50 48.50 89.50 316.00 522.50 824.00 843.00 6107.00
1959 1009.00 838.00 806.50 598.00 506.00 279.50 141.50 231.00 364.50 533.50 813.50 971.50 7092.50
1960 1054.50 861.50 800.00 603.50 535.00 279.00 117.50 238.00 308.50 530.50 846.00 996.00 7170.00
1961 870.00 762.00 754.50 648.00 469.00 190.50 120.00 46.00 o 397.00 610.00 894.00 990.50 6705.50
1962 1041.00 792.00 862.00 558.50 557.50 325.00 207.00 200.50 267.00 585.50 754.50 928.50 7079.00
1963 1104.50 634.50 799.50 669.50 427.00 333.50 239.50 168.50 181.50 513.50 789.50 926.50 6787.50
1964 970.00 867.50 825.00 698.50 530.50 313.50 184.00 235.50 372.50 493.00 874.50 1089.00 7453.50
1965 1004.50 824.00 759.50 561.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3149.50
1966 0.00 z 0.00 z 0.00 z 0.00 z 450.00 323.00 227.00 196.69 b 249.50 578.50 732.93 a 861.50 3619.12
1967 930.57 d 762.50 877.50 720.00 462.00 193.50 163.00 79.50 224.00 523.00 716.00 998.50 6650.07
1968 981.50 657.00 707.00 684.00 450.00 300.00 127.50 0.00 z 300.58 d 575.50 759.00 1093.00 6635.08
1969 1230.50 886.50 787.00 614.50 378.50 154.00 0.00 z 236.50 289.00 580.00 695.69 a 688.50 g 5852.19
1970 1025.00 675.11 a 788.29 c 745.00 485.67 d 224.50 167.00 203.00 376.50 591.50 764.48 a 1086.60 b 7132.65
1971 1031.00 825.00 920.00 650.00 452.50 407.00 203.16 c 122.50 388.50 603.39 c 797.50 1044.04 c 7444.59
1972 1105.67 d 443.00 m 779.50 711.00 397.50 292.50 b 204.27 c 157.00 450.50 598.19 d 767.00 920.00 g 5463.12
1973 1039.50 722.50 800.26 d 645.00 433.50 299.50 187.50 330.48 c 309.50 591.00 729.50 f 883.00 6241.74
1974 1086.50 801.00 777.87 d 639.64 b 564.00 183.00 l 202.00 f 202.65 d 209.46 b 524.00 779.50 918.00 6502.63
1975 748.50 h 867.50 886.00 484.00 j 485.00 352.00 152.13 d 252.81 b 263.28 a 603.93 d 846.00 907.35 e 5615.99
1976 908.50 865.50 894.50 641.25 b 460.50 398.33 c 222.37 e 236.50 263.50 406.00 g 696.43 b 915.00 6502.38
1977 1030.00 670.00 856.00 543.50 562.00 264.81 d 226.00 127.50 400.96 d 435.00 h 839.50 755.50 f 5520.27
1978 883.50 731.50 720.50 656.54 d 363.00 h 219.00 173.71 b 194.50 352.50 508.00 889.04 d 1130.00 6458.78
1979 1129.50 841.22 e 738.00 635.19 d 428.00 294.50 163.00 191.00 248.00 374.00 g 763.27 d 821.00 6252.68
1980 1120.43 c 765.15 c 808.00 510.50 449.00 340.50 185.50 237.50 313.00 348.00 g 757.50 897.50 6384.58
1981 738.83 d 435.50 j 710.50 615.50 488.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2552.83
Period of Record Statistics
MEAN 1040.78 822.84 822.02 638.43 451.17 300.27 176.07 191.36 308.93 571.23 811.55 975.08 7169.20
S.D. 118.58 94.92 80.59 65.79 73.67 65.53 47.36 52.85 64.72 56.49 81.44 82.60 500.99
SKEW 0.40 -0.12 -0.22 0.08 -0.36 -0.42 -0.13 0.02 -0.06 0.51 0.34 0.19 -0.30
MAX 1352.00 1029.00 1000.50 777.00 588.50 407.00 272.50 330.48 450.50 709.50 1008.50 1144.50 8160.00
MIN 738.83 634.50 613.00 510.50 264.00 154.00 48.50 79.50 181.50 466.00 690.50 821.00 6107.00
NO YRS 38 38 40 38 39 37 37 37 38 33 36 35 22