STAMPEDE PASS, WASHINGTON

Monthly Total Heating Degree Days

(458009)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1944 1261.50 1106.50 1117.00 842.00 663.50 489.00 276.00 324.00 342.00 491.50 1043.00 1334.50 9290.50
1945 1184.00 1034.00 1148.00 978.00 597.00 519.00 221.50 224.00 473.50 632.00 1110.00 1264.00 9385.00
1946 1169.50 1025.50 1070.50 868.00 596.00 541.50 299.00 241.50 489.50 861.00 1108.50 1163.00 9433.50
1947 1302.50 949.50 888.50 775.00 503.50 542.50 358.50 362.00 388.50 790.50 1019.00 1151.00 9031.00
1948 1235.87 a 1194.00 1177.50 1003.50 766.00 378.00 392.00 414.00 504.50 758.00 1071.00 0.00 z 8894.37
1949 1575.50 1179.00 1061.00 827.50 555.00 510.00 377.00 327.00 368.00 817.50 788.00 1234.00 9619.50
1950 1747.50 1137.50 1165.00 990.00 810.00 492.50 280.50 234.50 349.50 827.00 1034.50 1049.50 10118.00
1951 1335.00 1077.50 1185.50 765.50 682.00 365.00 256.00 311.00 330.50 801.00 1059.50 1301.50 9470.00
1952 1376.00 1108.00 1129.50 813.50 652.00 562.50 252.50 290.50 294.00 465.00 1051.00 1207.00 9201.50
1953 1012.00 1027.50 1090.00 929.50 773.00 639.50 309.50 289.50 395.50 620.50 934.00 1094.00 9114.50
1954 1330.50 1045.00 1164.00 997.50 700.50 644.00 398.50 454.50 472.00 746.50 860.50 1223.50 10037.00
1955 1220.50 1151.00 1281.00 1031.00 890.50 526.50 435.50 334.00 479.00 780.50 1242.50 1330.00 10702.00
1956 1304.50 1290.50 1168.00 800.50 564.50 584.50 246.50 277.00 419.00 845.00 1051.50 1089.50 9641.00
1957 1512.50 1074.50 1094.50 826.00 517.00 468.50 400.50 376.50 239.50 775.50 960.00 1093.50 9338.50
1958 1166.50 907.00 1057.00 865.50 430.50 325.00 113.50 189.50 462.50 623.00 1074.00 1094.50 8308.50
1959 1251.50 1094.00 1090.00 875.00 769.00 476.50 263.50 394.00 559.50 719.00 1027.50 1184.00 9703.50
1960 1326.00 1142.50 1056.50 855.50 796.00 472.50 192.50 433.00 394.50 662.50 1037.50 1240.00 9609.00
1961 1153.00 990.00 1050.50 934.50 719.50 312.50 232.00 157.00 555.00 793.00 1123.50 1247.50 9268.00
1962 1192.50 1018.00 1104.50 815.00 844.00 484.00 335.00 368.50 375.00 693.50 979.00 1076.50 9285.50
1963 1340.50 810.00 1024.00 922.50 636.50 545.00 436.50 270.50 268.50 684.50 1021.50 1189.50 9149.50
1964 1201.00 1033.50 1137.00 1006.00 817.50 560.50 330.50 436.00 534.00 675.00 1084.50 1373.00 10188.50
1965 1185.00 1020.00 1008.00 837.00 769.50 452.50 238.00 298.00 473.50 581.50 921.00 1226.00 9010.00
1966 1214.50 1057.00 1055.50 849.00 662.50 549.50 352.00 299.50 324.50 729.50 950.00 1089.50 9133.00
1967 1135.00 969.00 1141.00 984.00 691.00 324.50 249.00 102.50 265.00 751.00 962.00 1198.00 8772.00
1968 1235.50 912.00 950.50 941.00 660.00 495.00 216.50 365.50 431.00 840.00 1030.00 1395.50 9472.50
1969 1533.50 1133.50 998.00 890.50 543.00 292.50 336.50 367.50 453.50 798.00 933.50 1191.50 9471.50
1970 1271.00 936.50 1048.50 1023.50 721.50 364.00 280.00 262.50 549.50 778.50 1042.00 1284.00 9561.50
1971 1176.00 1039.00 1205.50 933.00 687.50 570.50 252.50 181.00 543.50 779.00 1010.50 1274.50 9652.50
1972 1320.50 1118.50 1012.00 1042.50 607.00 466.00 247.00 223.50 580.00 690.50 968.50 1351.00 9627.00
1973 1339.00 987.00 1042.50 870.50 652.50 535.00 274.00 395.50 432.00 784.50 1147.50 1132.00 9592.00
1974 1369.00 1028.00 1083.50 912.50 847.00 447.50 359.50 257.00 277.00 584.50 974.00 1096.00 9235.50
1975 1205.50 1115.00 1148.50 1003.00 755.50 595.50 265.00 463.00 329.00 844.50 1067.00 1134.00 9925.50
1976 1096.00 1093.00 1153.50 889.00 708.50 583.50 325.00 363.00 311.50 655.00 885.50 1042.50 9106.00
1977 1174.00 916.50 1092.00 708.00 779.00 381.00 377.50 195.50 542.50 763.00 1113.00 1249.00 9291.00
1978 1166.50 1016.50 939.50 869.50 766.00 381.00 288.00 349.00 571.50 641.00 1109.50 1344.00 9442.00
1979 1500.50 1087.00 934.00 849.50 633.50 469.00 299.00 285.00 340.00 611.50 1092.50 1098.00 9199.50
1980 1435.00 1091.00 1080.00 729.50 639.50 552.50 303.50 396.50 415.00 629.50 966.50 997.00 9235.50
1981 1108.50 992.50 924.50 861.00 712.00 595.50 348.00 198.00 419.00 714.00 927.00 1204.00 9004.00
1982 1218.50 1108.50 1061.50 951.00 725.50 357.00 346.50 301.50 427.00 790.00 1130.00 1262.50 9679.50
1983 1067.50 964.00 928.00 799.50 594.00 529.50 412.50 267.50 555.00 725.50 1013.00 1473.00 9329.00
1984 1133.00 1023.00 943.00 951.50 837.50 559.50 280.50 311.50 533.50 870.50 1076.50 1333.50 9853.50
1985 1332.50 1122.50 1076.00 826.50 660.00 477.00 127.00 319.00 554.50 837.00 1370.50 1307.50 10010.00
1986 1124.00 1033.50 911.00 915.50 661.50 345.00 449.00 150.00 570.50 568.50 1002.00 1263.50 8994.00
1987 1272.00 969.00 972.00 747.50 595.50 360.00 386.50 250.00 285.50 479.50 925.00 1267.50 8510.00
1988 1272.00 950.00 1026.50 834.00 717.50 506.50 323.50 295.00 427.00 484.50 1028.00 1139.50 9004.00
1989 1158.00 1256.50 1112.50 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 3527.00
1990 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
1991 1226.50 0.00 z 1065.00 0.00 z 762.00 574.00 265.00 236.50 290.00 673.50 1015.00 1120.50 7228.00
1992 1144.50 927.50 753.00 753.50 0.00 z 340.50 287.50 0.00 z 0.00 z 704.50 1053.50 1309.00 7273.50
1993 1381.50 1141.50 966.00 870.50 501.50 552.50 514.00 313.00 299.00 588.00 1111.50 1173.00 9412.00
1994 978.00 1097.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2075.00
1995 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
1996 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 233.00 264.00 511.50 710.13 d 1039.44 c 1260.50 4018.57
1997 1216.50 1024.50 1065.50 916.03 a 577.00 526.00 331.70 a 185.00 372.86 b 790.00 914.50 1164.50 9084.09
1998 1014.00 f 979.50 998.50 785.50 698.50 443.00 201.00 221.00 248.50 733.00 967.50 1246.00 7522.00
1999 1071.00 1066.00 1073.00 879.00 823.50 584.00 323.50 243.50 378.50 725.00 897.50 1120.13 a 9184.63
2000 1248.50 1050.50 1062.50 759.50 733.50 445.00 338.00 340.00 454.00 746.50 1116.00 1250.50 9544.50
2001 1197.00 1067.00 990.50 895.50 623.00 561.50 356.00 239.00 355.00 801.00 939.00 1197.00 9221.50
2002 1162.50 1022.00 1145.50 858.50 756.00 427.00 265.00 280.00 404.00 730.00 892.00 1145.00 9087.50
2003 1079.50 997.50 992.50 870.00 680.00 379.50 202.00 201.50 330.50 601.50 1077.00 1186.50 8598.00
2004 1226.50 1013.00 903.00 677.00 650.50 344.00 155.00 113.50 390.50 598.00 825.00 980.00 7876.00
2005 1035.00 847.50 779.00 693.50 462.00 423.50 186.50 132.50 386.00 598.50 993.50 1176.00 7713.50
2006 1007.50 1009.50 954.50 711.50 510.00 322.00 168.50 192.50 266.50 600.50 984.00 1141.00 7868.00
2007 1185.50 942.50 942.00 851.50 629.00 483.50 197.00 306.50 457.50 770.50 974.00 1183.00 8922.50
2008 1296.50 974.00 1073.50 966.50 632.50 537.00 256.00 295.50 339.00 693.00 720.00 1175.93 a 8959.43
2009 0.00 z 544.00 l 356.50 u 586.50 g 536.00 319.00 137.00 245.00 332.00 565.00 g 817.76 a 698.50 m 2386.76
2010 812.00 f 838.00 928.50 808.00 661.50 498.00 259.50 297.00 448.00 667.57 b 395.50 p 618.50 p 5406.07
2011 1125.00 1108.50 1093.55 b 795.00 g 608.00 h 574.50 383.00 263.00 292.00 554.50 i 1077.00 871.00 g 5916.55
2012 117.50 z 836.50 g 353.50 u 0.00 z 25.00 z 425.00 f 218.50 i 206.50 292.50 198.50 s 764.00 h 612.50 o 499.00
2013 910.00 g 698.50 h 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
Period of Record Statistics
MEAN 1239.07 1038.73 1045.92 870.60 674.54 475.60 293.79 284.08 408.64 705.23 1011.74 1202.03 9276.38
S.D. 141.77 92.13 99.16 89.80 102.56 92.66 82.71 82.83 97.12 100.24 104.51 100.01 543.92
SKEW 1.02 0.04 -0.52 -0.08 -0.18 -0.34 0.10 0.05 0.14 -0.53 0.13 0.17 -0.61
MAX 1747.50 1290.50 1281.00 1042.50 890.50 644.00 514.00 463.00 580.00 870.50 1370.50 1473.00 10702.00
MIN 978.00 810.00 753.00 677.00 430.50 292.50 113.50 102.50 239.50 465.00 720.00 980.00 7713.50
NO YRS 62 63 63 60 61 63 64 64 64 62 63 60 56