SENECA, OREGON

Monthly Total Heating Degree Days

(357675)

Base Temperature = 65 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1949 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 239.00 30.50 0.00 z 486.00 0.00 z 0.00 z 0.00 z 755.50
1950 0.00 z 0.00 z 0.00 z 0.00 z 604.50 d 371.38 a 198.40 a 209.50 491.00 593.65 a 864.50 921.00 4253.93
1951 1338.00 1021.00 1111.50 677.00 525.93 b 405.50 162.50 190.00 f 394.00 763.12 a 1094.50 1390.35 a 8883.40
1952 1453.50 1332.00 1219.00 674.00 521.00 366.21 a 204.60 a 231.98 a 362.00 653.50 1206.00 1308.00 9531.79
1953 1033.00 1006.00 993.50 789.00 727.50 450.52 a 184.40 b 235.94 d 400.86 a 718.34 b 899.46 b 1297.00 8735.53
1954 1219.69 b 943.60 c 1095.33 a 760.80 e 377.00 i 430.34 a 143.00 i 322.83 b 491.40 e 625.00 g 865.71 b 1343.33 a 7473.04
1955 1428.00 1211.54 b 1206.86 b 896.00 618.81 e 352.50 b 246.34 c 217.00 b 429.23 d 650.45 c 1088.08 d 1140.80 a 9485.60
1956 1320.50 1321.50 1078.00 604.82 b 430.42 e 293.33 c 58.00 i 241.05 b 410.77 d 773.28 d 1035.00 b 1186.00 8694.68
1957 1669.00 1151.50 989.00 774.31 a 512.05 c 311.79 b 251.32 c 331.38 b 381.67 c 778.74 b 878.00 f 1130.50 8281.26
1958 1286.50 904.00 1123.00 797.50 378.09 c 179.50 k 132.00 i 155.50 478.00 745.66 c 1049.48 a 1070.50 7988.23
1959 1140.00 1059.50 990.45 a 705.00 b 680.34 c 331.11 c 212.72 b 288.96 c 528.00 727.93 d 1007.59 a 1282.22 b 8953.83
1960 1484.50 1236.00 988.00 763.39 b 648.62 e 328.85 d 95.30 d 324.98 a 445.20 e 720.75 e 1034.46 b 1303.00 9373.05
1961 1194.00 885.50 983.50 786.11 c 628.27 a 221.54 d 150.23 e 98.88 b 580.18 b 773.93 b 1078.39 b 1279.00 8659.53
1962 1486.00 1083.50 1129.50 672.50 675.50 406.03 a 282.88 c 286.48 b 322.00 f 686.59 d 957.41 a 1112.00 8778.40
1963 1419.00 765.00 994.14 b 868.50 508.00 376.15 d 338.33 b 243.50 283.93 b 659.86 c 912.50 1227.00 8595.91
1964 1355.00 1335.50 1155.00 843.00 663.29 b 378.21 b 180.63 e 306.79 b 527.31 d 708.41 d 1084.29 b 1234.50 9771.94
1965 453.50 t 798.50 i 777.00 k 722.59 a 714.07 b 383.04 b 212.72 b 267.00 636.00 678.12 c 951.00 1277.72 a 5842.26
1966 1335.00 1229.00 1071.50 764.00 556.40 b 443.50 238.00 240.25 a 395.00 813.50 932.50 1201.00 9219.65
1967 1240.50 1064.50 1063.50 946.50 590.00 354.00 119.50 119.00 330.00 762.00 943.00 1426.00 8958.50
1968 1329.50 926.00 899.50 884.00 655.00 359.50 164.00 304.00 485.50 819.90 b 990.50 1226.05 a 9043.45
1969 1338.00 1259.50 1264.59 b 741.50 511.00 323.50 226.00 265.00 440.50 886.08 a 974.00 1175.00 9404.67
1970 1261.50 941.00 1025.50 959.00 593.00 298.00 158.50 202.50 652.00 921.00 963.75 b 1458.03 a 9433.78
1971 1329.12 c 1075.50 1196.17 b 828.50 547.50 433.97 a 177.50 111.00 654.50 874.50 1032.50 1457.00 9717.76
1972 1547.00 1168.50 890.50 861.00 557.00 338.50 211.00 217.50 624.50 793.00 997.50 1486.50 9692.50
1973 1426.00 c 996.59 a 979.82 c 775.00 c 512.05 c 337.00 133.00 244.50 451.00 668.50 f 1047.78 c 1101.61 c 8004.35
1974 1437.22 b 1138.08 d 810.50 g 570.50 h 411.00 l 43.00 q 216.45 c 257.00 329.50 h 786.92 e 695.00 h 1195.80 d 5031.47
1975 1279.55 b 1103.41 a 1137.38 b 805.00 f 407.50 j 231.00 l 106.20 d 241.50 f 335.50 g 803.02 e 870.00 f 1150.74 b 5580.30
1976 1273.50 1232.50 b 1146.50 636.00 h 304.00 m 337.00 h 102.50 h 232.50 d 358.00 738.50 881.11 c 1235.50 7098.11
1977 1507.50 968.15 b 1094.00 744.81 d 670.00 239.40 e 134.00 l 159.50 f 357.50 h 428.00 l 681.50 h 1133.71 c 6357.58
1978 1234.32 a 1017.50 810.00 543.50 h 483.00 h 202.50 m 113.00 m 185.00 i 354.00 k 744.52 a 1182.41 a 1586.50 6575.25
1979 1781.00 1096.50 988.00 772.50 534.00 312.00 134.50 166.00 300.00 567.50 0.00 z 0.00 z 6652.00
1980 0.00 z 0.00 z 0.00 z 706.00 590.00 451.00 175.00 363.00 440.50 762.00 977.50 1173.50 5638.50
1981 1104.00 1075.50 945.50 738.00 633.50 405.50 285.00 170.50 460.00 830.00 910.50 1161.00 8719.00
1982 1480.00 1138.67 a 1023.50 893.00 622.50 305.50 212.50 204.00 501.50 782.00 1116.50 1322.50 9602.17
1983 1182.00 970.00 908.50 863.50 562.50 426.50 284.50 164.00 518.00 743.50 955.00 1469.50 9047.50
1984 1534.50 1296.00 1013.00 858.50 607.00 451.50 158.00 176.50 509.00 857.50 1010.50 1515.00 9987.00
1985 1635.50 1307.00 1264.50 731.00 546.50 334.00 89.50 323.00 640.50 829.50 1344.50 1683.00 10728.50
1986 1202.50 965.50 837.50 791.50 577.50 250.50 338.50 132.50 597.50 746.50 690.50 i 1273.00 7713.00
1987 1501.00 1036.00 943.00 611.00 523.50 295.00 277.00 324.50 403.00 687.50 992.00 1251.00 8844.50
1988 1375.88 a 1092.00 941.50 677.00 484.50 274.50 176.00 276.93 a 466.00 541.00 1012.50 1356.50 8674.32
1989 1427.50 1397.00 969.27 a 658.50 611.50 306.00 190.50 281.00 465.00 751.50 952.00 1177.00 9186.77
1990 1133.00 1166.00 931.50 597.50 625.00 350.50 149.00 202.00 320.50 770.00 944.00 1489.50 8678.50
1991 1351.50 800.50 988.00 813.50 669.50 465.00 175.00 153.50 378.00 769.50 930.00 1199.50 8693.50
1992 1203.00 853.00 837.00 652.50 455.50 272.50 269.00 218.00 451.50 680.00 1112.00 1445.50 8449.50
1993 1585.00 1320.00 970.00 796.00 424.50 421.00 424.50 334.00 490.50 691.00 1218.50 1169.50 9844.50
1994 1110.00 1068.50 893.00 700.00 508.00 369.00 158.50 190.50 385.00 818.00 1239.50 1298.00 8738.00
1995 1108.50 826.50 959.50 794.00 581.50 401.00 194.00 321.50 396.00 779.50 849.50 1111.00 8322.50
1996 1165.00 1080.50 884.00 729.00 643.00 377.50 141.00 210.00 532.50 760.50 946.00 1179.03 a 8648.03
1997 1234.00 1021.00 875.00 772.00 443.00 360.50 215.00 178.50 369.00 756.50 904.50 1287.00 8416.00
1998 1091.50 1007.00 944.00 771.00 615.00 404.00 76.00 141.50 294.50 840.50 962.50 1315.00 8462.50
1999 1235.00 1232.50 1076.50 857.50 666.50 a 410.50 266.00 180.00 537.50 761.50 843.00 1205.00 9271.50
2000 1208.50 966.00 1019.00 659.50 548.50 340.00 179.00 212.50 284.42 d 750.50 1244.50 1382.50 8794.92
2001 1444.50 1145.50 994.50 846.00 486.50 368.79 a 184.00 132.00 354.00 760.50 977.00 1313.50 9006.79
2002 1281.00 1120.00 1079.00 734.50 583.50 274.00 97.50 311.00 444.00 875.50 996.00 1120.00 8916.00
2003 999.50 1005.50 863.50 803.50 539.50 297.00 83.50 150.00 337.50 653.50 1114.50 1131.50 7979.00
2004 0.00 z 1205.00 910.50 684.00 563.00 305.50 133.00 138.00 484.00 724.00 996.50 1157.50 7301.00
2005 1296.50 1065.00 906.50 745.50 499.00 421.00 138.50 197.50 528.00 724.50 1012.00 1354.00 8888.00
2006 1198.00 1277.50 1058.00 731.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4264.50
Period of Record Statistics
MEAN 1325.17 1090.94 1012.44 765.89 572.02 354.28 190.30 227.07 453.93 750.74 1012.69 1270.48 9065.17
S.D. 166.91 149.19 110.76 84.22 77.92 61.94 73.78 68.40 97.30 76.17 110.07 142.94 547.37
SKEW 0.41 -0.01 0.43 0.13 -0.24 -0.16 0.63 0.09 0.27 -0.40 0.93 0.54 0.70
MAX 1781.00 1397.00 1264.59 959.00 727.50 465.00 424.50 363.00 654.50 921.00 1344.50 1683.00 10728.50
MIN 999.50 765.00 810.00 597.50 378.09 221.54 30.50 98.88 283.93 541.00 843.00 921.00 7979.00
NO YRS 53 54 53 52 51 52 51 52 52 53 50 55 38