HOWARD PRAIRIE DAM, OREGON

Monthly Total Heating Degree Days

(354060)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1960 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 87.50 t 505.50 922.50 1068.00 2496.00
1961 965.00 883.00 953.00 720.00 596.00 191.00 106.00 72.50 412.50 567.00 912.50 1135.00 7513.50
1962 1233.00 960.00 1024.50 652.00 658.50 322.00 171.50 194.00 244.50 0.00 z 809.00 949.50 7218.50
1963 1153.50 729.00 938.50 890.50 509.00 381.00 271.50 196.00 193.00 572.50 872.50 1009.50 7716.50
1964 1170.00 1037.50 1049.50 810.52 a 629.00 412.00 170.00 197.00 395.50 461.00 956.50 1085.00 8373.52
1965 1079.83 a 923.00 874.00 719.00 642.00 356.00 156.00 194.00 398.50 456.00 828.00 1147.50 7773.83
1966 1167.50 1031.00 964.00 651.50 443.00 371.50 232.50 109.00 274.00 565.50 833.50 1062.00 7705.00
1967 1094.00 876.50 1001.00 960.00 536.50 298.00 79.00 35.50 144.00 581.00 756.50 1265.00 7627.00
1968 1166.00 832.71 a 841.50 774.50 606.50 300.50 107.00 256.00 277.00 606.00 911.00 1251.50 7930.21
1969 1290.00 1049.50 1040.50 803.50 434.00 282.50 136.00 189.00 261.50 714.50 784.00 1008.50 7993.50
1970 1065.00 821.00 896.50 881.00 540.00 255.00 100.00 111.50 428.00 653.00 843.50 1229.50 7824.00
1971 1192.50 992.50 1046.00 857.50 632.50 415.00 138.00 73.00 380.00 710.00 912.00 1248.50 8597.50
1972 1256.50 952.50 808.00 815.00 477.50 252.50 99.50 160.00 411.00 586.93 a 918.50 1263.50 8001.43
1973 1182.50 867.50 987.00 729.00 419.50 288.00 132.00 161.00 314.00 630.50 945.50 1018.00 7674.50
1974 1251.50 997.50 954.00 823.00 591.00 211.00 192.00 161.50 186.00 590.50 876.50 1133.50 7968.00
1975 1234.00 1065.50 1079.00 1007.00 636.00 405.50 191.50 279.50 232.50 685.50 972.50 1032.00 8820.50
1976 1088.50 998.00 1027.50 844.00 520.00 416.50 161.00 287.00 275.00 500.00 735.50 1027.50 7880.50
1977 1171.50 792.50 1014.00 659.00 731.50 192.50 170.50 114.00 359.50 579.50 942.50 1064.00 7791.00
1978 984.50 852.00 747.50 776.50 611.50 313.50 129.50 212.50 424.00 452.50 980.00 1292.50 7776.50
1979 1247.00 964.00 846.50 741.00 473.00 289.50 147.00 191.50 205.00 479.50 925.50 1021.00 7530.50
1980 1103.50 830.50 942.50 697.00 580.00 0.00 z 136.50 197.50 285.50 498.50 818.50 1001.50 7091.50
1981 936.00 894.00 873.50 682.00 552.00 300.50 161.50 97.50 267.50 658.00 821.00 998.50 7242.00
1982 1234.50 1000.00 990.00 846.50 532.50 297.50 175.50 145.00 385.50 638.00 986.00 1170.50 8401.50
1983 1063.00 923.50 913.50 848.50 505.00 400.00 288.50 130.00 344.50 539.50 959.50 1145.50 8061.00
1984 1108.50 990.50 861.00 819.00 573.00 381.00 94.00 118.50 345.00 758.50 1006.00 1275.00 8330.00
1985 1138.50 1038.00 1049.00 650.00 553.00 267.50 41.00 214.50 454.00 652.00 1128.00 1115.00 8300.50
1986 964.50 852.50 750.50 695.00 529.50 178.50 204.50 36.00 468.00 557.50 846.00 1079.00 7161.50
1987 1207.50 925.00 919.50 547.00 432.50 218.28 a 238.18 a 125.50 216.72 a 363.00 844.50 1173.50 7211.18
1988 1165.00 888.00 870.00 641.00 596.00 331.00 89.00 100.23 a 288.50 351.00 933.50 1120.00 7373.23
1989 1233.50 1134.00 945.00 585.00 578.00 241.00 164.50 215.50 324.50 616.00 839.50 997.50 7874.00
1990 1103.71 b 1029.00 846.50 525.00 584.00 313.50 103.00 153.00 198.50 605.50 946.00 1347.00 7754.71
1991 1105.00 736.50 993.00 790.00 662.50 406.50 77.50 0.00 z 149.00 477.00 838.00 1089.50 7324.50
1992 1069.00 802.00 723.50 558.50 290.00 211.15 d 136.50 87.50 267.50 504.00 930.00 776.50 k 5579.65
1993 1237.50 1057.00 812.50 767.00 464.00 382.00 260.00 171.50 242.50 513.00 983.50 1133.50 8024.00
1994 1049.50 998.00 791.00 636.00 447.50 301.50 47.00 109.00 223.50 638.00 1190.50 1177.00 7608.50
1995 1035.50 757.50 930.50 772.50 501.00 354.00 136.50 189.00 204.50 570.50 721.50 1000.00 7173.00
1996 1046.00 914.00 856.50 680.00 566.50 282.00 79.50 114.00 343.00 620.00 853.00 1085.00 7439.50
1997 1109.50 912.50 811.00 723.00 349.00 323.50 124.00 73.50 263.50 612.00 818.50 1162.50 7282.50
1998 997.50 935.50 897.50 725.00 692.00 310.50 39.50 70.50 199.50 626.50 928.50 1215.50 7638.00
1999 1098.50 1032.23 b 994.50 802.50 b 568.52 c 327.41 a 140.00 122.89 c 209.00 446.18 c 763.50 1054.52 a 7559.75
2000 1076.00 882.95 a 925.50 609.50 499.50 202.50 133.19 d 86.36 c 287.14 b 623.74 b 988.45 a 1010.08 a 7324.90
2001 1096.88 a 991.31 b 831.50 787.50 315.68 a 314.44 c 94.60 b 68.50 197.07 a 498.50 851.00 1098.36 b 7145.35
2002 1164.00 886.50 952.50 648.00 532.50 221.50 32.50 140.00 214.00 590.00 814.50 1015.50 7211.50
2003 918.00 913.00 833.50 812.50 521.50 148.50 i 39.00 74.00 200.50 454.50 979.50 1045.50 6791.50
2004 1074.00 976.50 764.50 633.50 511.00 249.00 41.00 f 77.50 j 333.00 619.50 880.00 1021.50 7062.50
2005 1099.50 860.50 814.50 749.50 110.00 w 440.50 57.50 45.00 313.00 535.30 c 865.50 1070.50 6851.30
2006 1065.00 949.00 1071.00 767.00 448.00 250.50 48.50 107.50 313.50 588.00 0.00 z 1094.09 b 6702.09
2007 1151.50 873.50 794.50 700.00 434.00 279.50 54.00 97.00 294.00 681.50 844.00 1180.50 7384.00
2008 1193.00 942.50 b 942.40 a 846.50 530.50 351.50 50.00 115.00 215.00 566.50 783.50 1118.00 7654.40
2009 1064.00 908.50 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 0.00 z 1972.50
2010 0.00 z 0.00 z 927.00 880.50 741.50 395.00 106.00 167.00 320.00 538.00 946.00 1075.00 6096.00
2011 1098.50 1010.50 990.00 904.00 736.50 436.50 213.50 92.50 181.00 627.50 949.50 1047.50 8287.50
2012 1069.50 1004.00 1051.00 731.38 a 560.00 425.00 149.50 84.50 172.00 568.00 815.50 1115.00 7745.38
2013 1154.50 993.00 912.00 52.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 47.50 z 3059.50
Period of Record Statistics
MEAN 1119.67 932.06 916.80 748.53 541.48 313.20 132.11 137.61 285.02 569.27 892.37 1108.70 7754.41
S.D. 87.16 89.32 93.67 105.18 98.61 72.88 63.46 60.98 84.49 85.29 90.69 92.48 409.66
SKEW -0.20 -0.27 -0.15 0.04 -0.22 0.00 0.46 0.49 0.38 -0.35 0.73 0.63 0.53
MAX 1290.00 1134.00 1079.00 1007.00 741.50 440.50 288.50 287.00 468.00 758.50 1190.50 1347.00 8820.50
MIN 918.00 729.00 723.50 525.00 290.00 178.50 32.50 35.50 144.00 351.00 721.50 949.50 7145.35
NO YRS 52 52 52 51 50 49 50 49 51 51 51 51 42