SHIRLEY BASIN, WYOMING

Monthly Total Heating Degree Days

(488192)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1978 1162.50 g 1244.83 d 913.50 g 767.40 e 447.00 k 171.50 i 31.00 l 127.00 h 367.24 a 459.00 k 556.50 p 1683.82 a 4063.29
1979 1839.73 e 779.50 l 0.00 z 128.00 y 601.00 256.61 b 36.37 e 144.67 a 280.00 671.00 1358.57 b 1263.77 a 6451.71
1980 1559.96 c 1293.00 1247.20 c 868.93 b 548.59 c 192.78 c 28.50 138.50 404.42 d 789.43 b 1131.50 1127.76 b 9330.57
1981 1257.00 1174.44 a 1026.44 d 632.78 c 588.48 a 191.00 53.50 98.50 268.45 a 586.00 g 958.50 1296.46 c 7545.56
1982 1428.50 1226.30 a 1019.12 c 894.50 600.88 a 316.03 a 97.02 d 27.00 380.00 602.50 h 1183.00 1452.35 a 8624.71
1983 1314.00 1226.50 1169.50 1056.96 b 707.46 c 314.50 51.50 27.00 305.00 658.50 1103.08 d 1198.50 j 7934.01
1984 1597.57 b 1354.00 1268.50 1044.00 512.00 251.40 e 28.50 j 41.50 442.00 684.50 f 582.00 n 662.50 q 6510.97
1985 1706.50 1416.00 1119.00 729.50 443.00 241.67 c 23.00 o 124.50 487.00 754.50 1234.50 1524.50 9780.67
1986 1269.45 a 1088.77 b 871.00 760.00 582.00 116.50 118.00 99.50 438.50 769.00 1076.00 1426.00 8614.72
1987 1451.50 1208.50 1189.00 686.00 397.32 a 197.59 a 98.00 189.00 362.00 728.00 1056.50 1411.00 8974.40
1988 1579.50 1302.00 1223.50 719.00 503.50 73.00 31.50 81.50 390.00 623.50 1095.00 1502.00 9124.00
1989 1365.50 1509.50 975.00 716.00 513.00 325.18 b 25.50 152.00 394.00 716.00 1038.00 1484.50 9214.18
1990 1294.00 1226.50 1053.50 768.00 605.50 190.50 82.00 96.50 244.00 701.50 992.00 1642.50 8896.50
1991 1541.50 1069.50 1060.00 833.00 507.00 182.00 81.00 77.50 373.00 773.00 1213.00 1514.50 9225.00
1992 1519.50 1180.50 952.00 436.50 i 415.50 252.50 137.50 163.00 382.50 617.50 1329.50 1516.00 8466.00
1993 1451.50 1405.00 1284.50 1054.00 593.50 355.50 211.00 188.00 432.00 836.00 1295.50 602.00 q 9106.50
1994 1021.00 l 1604.30 a 675.50 n 913.00 540.00 275.00 225.50 175.50 476.50 898.00 1266.50 1454.50 7828.80
1995 1662.50 1234.50 1215.00 1005.00 793.00 406.00 240.00 164.82 a 519.50 1023.53 b 1134.50 1415.15 a 10813.50
1996 1695.18 a 1346.00 1242.14 b 880.50 669.60 a 308.00 163.50 230.90 b 579.50 911.50 955.00 g 1377.50 9404.32
1997 1678.00 1544.00 1217.00 1079.00 660.50 288.21 b 176.00 210.50 343.00 h 901.14 b 951.00 h 1617.50 9371.85
1998 1523.00 1310.50 1386.73 a 0.00 z 609.50 515.69 a 104.50 190.00 307.50 843.00 1047.00 1503.50 a 9340.92
1999 1431.74 d 1293.50 1066.50 1035.00 688.72 a 390.56 c 128.50 203.88 e 622.76 a 539.00 k 889.50 f 1505.00 8366.16
2000 1487.00 1253.00 1189.00 836.50 590.66 c 374.46 b 103.50 91.00 h 396.50 k 859.39 d 1059.00 l 1796.93 b 8490.44
2001 1874.00 1532.50 1333.00 866.50 595.00 287.50 65.50 137.84 c 424.04 d 849.29 b 592.50 o 1633.50 9598.67
2002 1692.50 1420.00 0.00 z 873.50 687.50 260.50 76.00 243.50 318.00 i 1046.00 1382.50 1147.00 i 7682.00
2003 1339.50 1513.00 1175.00 804.00 584.50 435.00 64.00 122.00 490.00 g 817.00 1111.00 f 1548.21 e 8402.21
2004 1639.50 1474.00 1106.00 827.00 623.50 373.50 187.00 318.00 476.50 803.50 1255.00 1477.00 10560.50
2005 1437.00 1251.00 1230.00 871.07 b 704.50 390.00 128.50 216.40 e 474.50 813.50 1201.50 1716.50 10434.47
2006 1482.50 1565.00 1285.50 796.00 632.00 235.50 74.50 160.50 600.00 906.50 1180.00 1532.00 10450.00
2007 1880.00 1349.00 1060.50 920.00 595.00 325.50 39.00 139.00 442.00 820.50 1170.50 1707.00 10448.00
2008 1779.92 a 1502.00 1409.97 b 1074.00 725.00 427.50 110.50 220.50 570.00 928.00 1129.00 1615.00 11491.38
2009 1667.50 1408.00 1255.00 1019.50 647.00 401.50 0.00 z 0.00 z 0.00 z 1087.00 1115.50 1837.50 10438.50
2010 1710.50 1644.50 1343.00 918.00 795.00 377.50 184.50 221.00 480.50 763.00 1277.50 1541.73 a 11256.73
2011 1697.50 1591.00 1288.50 961.50 803.00 402.50 129.50 152.50 486.50 847.00 1346.00 1705.00 11410.50
2012 1574.50 1589.00 1044.50 786.50 649.50 243.10 a 61.00 169.50 461.00 978.50 1045.50 1490.00 10092.60
2013 1674.00 1512.00 1078.00 f 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 3186.00
Period of Record Statistics
MEAN 1561.83 1367.49 1171.15 874.90 609.18 299.24 106.87 153.91 429.03 824.48 1170.95 1526.41 10021.07
S.D. 170.98 156.40 132.94 124.14 98.82 97.85 60.18 65.26 95.88 118.50 116.34 152.09 965.56
SKEW -0.02 0.03 -0.28 0.10 -0.04 -0.13 0.61 0.00 0.06 0.29 0.13 -0.24 0.09
MAX 1880.00 1644.50 1409.97 1079.00 803.00 515.69 240.00 318.00 622.76 1087.00 1382.50 1837.50 11491.38
MIN 1257.00 1069.50 871.00 632.78 397.32 73.00 25.50 27.00 244.00 617.50 958.50 1127.76 8614.72
NO YRS 34 35 31 32 34 34 31 32 30 30 27 31 16