HARTLINE, WASHINGTON

Monthly Total Heating Degree Days

(453529)

Base Temperature = 65 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200505
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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 34.14 a 46.50 a 130.95 b 186.50 520.50 893.00 1393.50 3205.09
1949 1768.50 1210.50 780.00 297.00 h 172.71 c 78.21 b 5.50 v 28.50 h 132.50 578.50 0.00 z 0.00 z 4720.93
1950 1096.50 l 0.00 z 0.00 z 582.60 e 321.00 117.22 c 7.50 3.00 111.00 567.50 891.96 b 987.50 3589.29
1951 845.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 117.00 553.50 905.17 a 1285.98 a 2861.66
1952 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 298.12 a 964.00 1097.50 2359.62
1953 926.50 818.00 747.00 553.50 367.00 210.50 11.50 45.00 164.50 434.50 756.50 1023.50 6058.00
1954 1276.68 a 725.00 f 0.00 z 0.00 z 0.00 z 0.00 z 35.00 78.53 a 213.00 563.00 693.10 a 1152.00 4011.32
1955 1181.74 b 0.00 z 0.00 z 151.00 x 417.50 83.50 63.50 16.50 177.50 495.50 1081.50 1272.00 4789.24
1956 1182.50 1323.50 951.50 403.50 163.00 149.00 9.50 27.00 98.50 525.00 942.50 1103.00 6878.50
1957 1616.00 1133.00 804.00 502.00 143.00 64.00 14.00 31.50 66.50 559.50 856.50 986.00 6776.00
1958 1006.00 663.50 775.50 562.50 137.00 38.00 6.00 4.00 200.50 450.00 914.50 1075.00 5832.50
1959 1146.00 1016.00 783.50 490.00 385.50 120.50 32.00 53.73 a 229.50 554.00 995.50 1078.00 6884.23
1960 1338.00 930.50 782.00 537.00 379.50 63.00 0.00 100.00 96.00 448.50 841.00 1166.12 a 6681.62
1961 1123.50 777.00 742.50 535.50 321.50 50.50 8.50 3.00 230.50 567.00 976.50 1220.50 6556.50
1962 1337.00 899.00 543.00 l 308.50 h 418.00 118.00 53.50 34.50 h 136.00 493.23 c 781.07 b 984.25 a 5220.05
1963 1371.23 a 822.23 b 720.50 448.50 g 313.58 e 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 870.00 i 3227.54
1964 819.50 i 766.50 g 0.00 z 508.85 d 301.73 a 0.00 z 0.00 z 0.00 z 199.50 455.18 a 878.79 a 1302.00 e 3646.06
1965 1138.45 b 959.00 868.00 425.00 0.00 z 86.79 b 29.00 35.00 j 247.22 c 0.00 z 743.57 b 1093.35 e 5590.37
1966 1242.98 e 581.00 k 569.00 h 355.50 i 141.50 m 0.00 z 23.50 o 0.00 z 61.00 396.00 f 753.50 997.00 3054.48
1967 997.00 767.00 804.00 675.00 e 349.50 56.00 0.50 0.00 a 24.50 511.50 802.50 1171.50 6159.00
1968 1119.50 783.00 679.93 a 568.00 238.50 69.50 7.00 82.50 144.50 585.50 819.50 1223.47 a 6320.90
1969 1550.50 1064.50 805.00 504.00 186.50 50.50 3.00 40.54 e 164.00 590.00 851.50 1086.00 6896.04
1970 1211.50 796.50 777.50 624.50 267.00 57.00 14.00 0.00 252.00 568.50 883.00 1248.00 6699.50
1971 1186.00 902.50 914.00 522.93 a 222.50 197.00 50.00 25.50 292.50 d 592.50 868.00 1322.50 7095.93
1972 1353.67 a 1004.00 696.50 641.00 230.50 82.00 19.50 19.50 285.00 537.50 796.00 1271.00 6936.17
1973 1238.45 a 890.50 684.00 454.50 233.50 41.50 k 29.50 44.50 142.00 545.50 930.50 967.00 6159.95
1974 1256.50 833.00 772.00 489.50 364.00 99.00 45.00 14.00 75.50 430.50 810.50 1049.00 6238.50
1975 1290.00 1101.50 895.50 617.00 292.00 110.00 7.75 c 49.50 67.00 517.50 877.00 1098.50 6923.25
1976 1168.00 950.00 875.50 525.50 284.50 182.50 28.00 65.50 41.00 481.50 843.50 1120.50 6566.00
1977 1350.50 816.50 790.50 342.50 374.00 40.00 19.50 40.00 217.00 486.00 918.00 1136.00 6530.50
1978 1109.50 848.00 647.00 494.50 316.50 59.50 8.50 47.50 174.50 456.50 1049.00 1364.50 6575.50
1979 1592.00 994.50 665.50 509.00 197.50 57.00 23.25 a 0.00 44.00 360.12 a 1006.50 968.50 6417.87
1980 1373.00 965.00 779.50 377.07 a 256.02 b 164.50 20.00 47.00 121.00 419.50 780.50 1028.68 a 6331.77
1981 901.00 842.50 637.00 541.50 297.50 192.50 54.00 9.50 184.66 a 540.00 775.50 1126.00 6101.66
1982 1272.50 933.50 763.00 638.50 266.00 84.00 42.50 22.50 141.50 554.00 1078.50 1243.00 7039.50
1983 1022.50 781.50 667.50 527.50 250.00 115.00 43.50 3.00 162.50 445.50 755.50 1386.73 a 6160.73
1984 1164.00 898.00 668.50 581.00 425.00 148.00 4.50 25.00 236.00 613.50 872.14 b 1565.50 7201.14
1985 1364.50 1165.50 915.50 451.61 b 218.00 74.00 0.00 41.00 270.50 638.50 1310.00 1401.00 7850.11
1986 1124.00 988.50 638.50 557.50 279.00 16.00 47.50 3.50 249.00 366.00 906.50 1135.50 6311.50
1987 1200.50 841.50 647.50 376.00 240.50 67.50 11.00 10.50 64.00 352.00 742.50 1127.00 5680.50
1988 1245.00 894.00 737.50 440.50 297.50 140.00 42.50 2.00 187.50 281.50 822.50 1151.50 6242.00
1989 1106.00 1134.50 834.50 344.00 275.50 50.50 36.50 37.50 89.00 463.00 814.50 0.00 z 5185.50
1990 988.50 975.00 652.00 358.00 295.50 135.50 2.00 27.00 11.50 536.00 582.50 i 1319.00 5300.00
1991 1230.50 660.50 765.50 468.00 310.00 165.50 3.50 4.50 13.50 503.50 864.00 962.00 5951.00
1992 0.00 z 706.50 522.00 429.50 164.00 35.50 7.50 25.50 171.00 362.00 838.00 1320.00 4581.50
1993 1359.50 1077.00 800.00 517.00 128.50 105.50 48.50 29.50 155.50 358.00 996.00 1029.50 6604.50
1994 972.50 0.00 z 599.00 377.50 0.00 z 125.50 1.50 6.50 24.50 444.50 950.00 1030.50 4532.00
1995 1091.00 733.50 679.50 509.00 194.00 120.00 3.50 i 0.00 z 60.00 i 533.50 778.50 1079.00 5718.00
1996 1298.50 1043.00 767.00 442.50 409.50 101.00 22.50 10.00 199.50 507.00 974.00 1256.05 c 7030.55
1997 1188.50 999.00 819.00 554.00 199.50 104.50 0.00 z 13.00 82.00 497.50 0.00 z 0.00 z 4457.00
1998 1114.50 729.50 502.00 i 473.00 214.00 61.50 0.00 0.00 z 37.50 482.00 755.00 735.50 k 3867.00
1999 1009.00 625.00 g 744.50 527.50 393.00 165.00 8.00 i 17.50 144.00 499.00 689.50 549.50 l 4189.00
2000 1179.00 976.50 549.00 i 407.00 342.50 92.00 34.00 30.50 169.00 512.50 1031.00 1270.50 6044.50
2001 0.00 z 1057.00 767.77 a 564.50 267.00 133.00 f 29.50 g 23.00 66.50 489.00 718.50 0.00 z 3953.27
2002 723.00 j 863.50 876.50 521.00 341.50 98.50 16.50 19.00 132.00 538.00 800.50 417.00 r 4207.00
2003 988.00 793.00 703.50 506.00 211.50 i 19.50 g 0.00 z 0.00 i 95.00 g 277.00 g 0.00 z 342.00 u 2990.50
2004 771.00 k 703.50 h 448.00 h 241.50 h 164.00 j 66.50 k 0.00 p 11.00 h 120.00 h 287.50 i 529.00 j 273.00 w 0.00
2005 737.00 k 471.50 l 404.50 k 285.50 i 103.00 n 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 1213.97 920.92 754.37 501.24 280.45 98.62 22.44 29.55 144.29 493.51 874.07 1163.30 6565.53
S.D. 179.54 147.53 90.99 80.57 80.62 47.91 18.36 28.03 75.28 79.32 116.46 140.72 459.78
SKEW 0.81 0.45 -0.04 -0.14 -0.01 0.54 0.49 1.56 0.01 -0.76 1.11 0.57 0.40
MAX 1768.50 1323.50 951.50 675.00 425.00 210.50 63.50 130.95 292.50 638.50 1310.00 1565.50 7850.11
MIN 901.00 660.50 522.00 342.50 128.50 16.00 0.00 0.00 11.50 281.50 689.50 962.00 5680.50
NO YRS 48 46 45 47 48 47 45 45 52 52 51 47 31