SILVER LAKE RANGER STN, OREGON

Monthly Total Heating Degree Days

(357817)

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
1968 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 1106.50 1106.50
1969 1117.00 962.00 882.50 658.00 353.50 148.85 d 93.00 a 131.00 222.32 b 673.70 c 820.50 1046.50 7108.86
1970 1036.50 772.00 857.50 836.50 457.50 195.00 57.00 53.50 381.00 637.50 814.00 1185.23 a 7283.23
1971 1022.50 845.50 970.50 682.50 423.50 322.50 134.00 20.50 323.50 602.36 b 608.50 f 1128.73 c 6476.09
1972 795.00 g 914.54 a 736.00 773.00 493.00 173.28 a 55.50 127.21 b 394.66 a 586.93 a 847.50 1328.00 6429.61
1973 1137.50 829.50 907.50 667.00 319.00 207.50 64.50 114.00 248.50 566.00 859.00 958.00 6878.00
1974 1174.50 845.00 883.00 691.50 482.50 96.00 82.00 48.50 192.00 569.50 791.50 1013.00 6869.00
1975 1023.50 889.00 936.00 864.00 489.50 282.00 68.00 158.00 194.50 527.00 920.50 909.50 7261.50
1976 670.00 i 609.00 k 922.50 725.00 404.00 324.00 67.50 183.00 214.50 521.00 734.50 1040.50 5136.50
1977 1144.00 774.00 925.50 537.00 595.00 103.00 90.50 54.50 264.50 508.00 811.50 940.00 6747.50
1978 873.00 813.00 680.50 720.50 516.50 212.00 94.50 163.00 362.50 466.55 a 985.00 0.00 z 5887.05
1979 834.00 m 676.50 f 538.00 i 367.50 n 272.00 m 0.00 z 93.50 86.50 137.59 a 439.00 472.50 n 312.50 r 756.59
1980 1091.50 783.00 865.50 600.00 475.85 a 376.55 a 73.50 176.50 245.69 a 554.00 828.00 942.40 a 7012.49
1981 984.52 b 852.38 b 926.38 a 622.22 c 481.50 257.00 142.50 69.00 263.28 a 618.00 850.50 988.00 7055.28
1982 1226.57 a 946.00 939.50 822.00 550.00 236.50 151.00 105.00 345.00 612.50 974.50 1198.00 8106.57
1983 951.00 812.00 805.50 780.00 447.50 314.00 204.00 80.50 352.00 516.00 829.00 1112.50 7204.00
1984 1102.00 868.00 759.50 764.50 484.00 380.50 52.50 81.50 336.50 687.68 a 925.50 1302.50 7744.68
1985 1292.00 974.00 632.50 k 536.00 446.00 224.50 0.00 z 197.76 b 150.50 s 683.03 a 939.50 f 1300.00 5653.29
1986 955.00 867.48 a 768.50 736.00 535.50 147.00 217.00 26.50 448.50 586.50 765.50 1085.50 7138.98
1987 1215.00 929.50 888.00 491.50 366.50 192.00 203.00 131.00 0.00 z 497.00 836.50 1093.50 6843.50
1988 1257.50 868.00 883.50 515.50 481.00 257.00 63.50 106.00 315.00 376.50 855.00 1121.00 7099.50
1989 1071.50 1177.50 786.00 514.50 513.50 193.00 105.00 186.00 320.00 664.00 820.50 1119.50 7471.00
1990 1057.50 991.00 800.00 532.50 582.00 273.50 62.50 125.50 182.00 516.31 b 844.00 1374.50 7341.31
1991 1092.00 465.00 k 969.50 762.50 596.00 368.00 47.50 11.00 166.50 511.50 777.50 534.00 m 5302.00
1992 661.00 k 706.00 689.50 529.00 264.00 156.50 110.00 84.00 259.50 486.00 884.50 1335.58 a 5504.58
1993 726.00 p 1372.52 a 582.00 j 239.00 t 252.00 k 223.00 n 320.85 a 187.00 264.50 505.00 1042.00 577.50 o 3691.87
1994 994.00 991.00 826.50 520.18 b 420.50 306.00 56.00 92.50 225.50 663.50 1151.38 a 1164.57 a 7411.62
1995 1027.00 734.50 937.00 758.50 479.50 306.50 91.00 172.50 227.00 661.00 762.00 565.00 m 6156.50
1996 1062.78 a 939.00 826.00 664.50 585.50 359.00 75.50 87.50 345.50 643.00 787.00 994.00 7369.28
1997 1044.00 886.50 757.00 743.00 303.80 a 245.50 96.50 28.50 242.50 624.13 a 869.48 a 1235.87 a 7076.78
1998 976.50 864.37 a 836.48 a 729.00 386.50 n 293.50 30.50 61.50 190.00 675.50 821.00 1130.00 6608.35
1999 974.00 912.50 860.50 686.50 464.50 280.50 150.35 a 96.00 269.00 493.50 666.00 1084.48 a 6937.83
2000 1021.00 840.50 846.50 594.00 435.50 150.50 67.00 52.50 363.62 a 619.48 a 997.00 1136.84 b 7124.45
2001 1086.55 a 958.74 a 761.05 a 812.50 338.50 277.00 107.47 a 38.00 189.31 a 578.50 931.50 1136.50 7215.62
2002 1131.50 889.00 906.00 619.50 471.50 167.00 25.00 154.50 344.50 754.50 885.00 1051.00 7399.00
2003 944.00 948.50 797.00 813.00 0.00 z 191.50 26.50 77.00 222.00 535.00 959.00 1013.50 6527.00
2004 1066.00 938.00 683.00 618.00 484.50 250.50 41.50 111.50 346.00 594.17 a 934.50 1013.00 7080.67
2005 1043.00 0.00 z 776.50 655.50 453.00 385.00 41.50 52.50 381.00 592.00 946.03 a 1207.50 6533.53
2006 974.00 933.00 964.00 645.50 393.00 139.00 27.00 152.00 237.00 651.53 b 867.50 1081.50 7065.03
2007 1196.50 867.50 721.50 650.00 386.00 169.50 8.50 32.50 300.00 657.00 883.00 1155.50 7027.50
2008 1232.00 918.50 911.50 791.00 496.50 310.00 47.00 97.00 279.00 622.00 764.00 1245.50 7714.00
2009 1094.50 894.50 936.00 688.00 415.00 239.50 44.50 93.50 161.50 676.00 899.50 911.00 h 6142.50
2010 875.00 837.50 851.98 a 757.00 608.50 286.50 78.00 108.00 224.00 514.00 893.50 1056.50 7090.48
2011 1110.50 958.00 891.00 819.00 642.50 332.50 129.00 62.50 117.00 j 409.50 k 337.00 s 444.50 s 4945.00
2012 1070.69 e 923.50 882.00 611.50 524.50 488.33 c 186.53 b 115.00 225.00 558.00 836.50 1072.00 7493.56
2013 1271.50 828.50 821.00 51.50 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 2921.00
Period of Record Statistics
MEAN 1075.49 898.92 847.03 679.46 466.50 252.81 92.61 99.82 273.33 581.96 866.77 1115.98 7225.99
S.D. 103.13 111.98 80.98 103.32 85.97 86.30 61.88 50.55 74.54 79.04 89.84 116.30 293.58
SKEW 0.24 2.00 -0.42 -0.17 -0.19 0.32 1.56 0.24 0.28 -0.25 0.71 0.41 1.09
MAX 1292.00 1372.52 970.50 864.00 642.50 488.33 320.85 197.76 448.50 754.50 1151.38 1374.50 8106.57
MIN 873.00 706.00 680.50 491.50 264.00 96.00 8.50 11.00 137.59 376.50 666.00 909.50 6747.50
NO YRS 40 41 42 42 40 42 43 44 41 43 40 38 28