APL Degree Days Data

APL heating and cooling degree day seasonal summaries are shown in the following two tables. Heating degree days (HDDs) are used as an indication of fuel consumption, especially for space heating. Cooling degree days (CDDs) are used as an index of the energy requirements for air conditioning or refrigeration. Both units are based in daily average temperature difference from 65F. APL HDDs and CDDs are also compared with Laurel, MD "normal" values, which are computed for the period from 1971-2000.



APL Heating Degree Days

Season
APL HDDs
Laurel "Normal" HDDs
APL - Laurel "Normal" HDDs
July 2010 - June 2011
4703
4505
+198
July 2009 - June 2010
4611
4505
+106
July 2008 - June 2009
4807
4505
+302
July 2007 - June 2008
4397
4505
-108
July 2006 - June 2007
4578
4505
+73
July 2005 - June 2006
4379
4505
-126
July 2004 - June 2005
4475
4505
-30
July 2003 - June 2004
4780
4505
+275
July 2002 - June 2003
5149
4505
+644
July 2001 - June 2002
3994
4505
-511
July 2000 - June 2001
5058
4505
+553
July 1999 - June 2000
4316
4505
-189
July 1998 - June 1999
4160
4505
-345
July 1997 - June 1998
4158
4505
-347
July 1996 - June 1997
4735
4505
+230




APL Cooling Degree Days

Season
APL CDDs
Laurel "Normal" CDDs
APL - Laurel "Normal" CDDs
Jan.-Dec. 2011
1460
1271
+189
Jan.-Dec. 2010
1562
1271
+291
Jan.-Dec. 2009
1090
1271
-181
Jan.-Dec. 2008
1196
1271
-75
Jan.-Dec. 2007
1494
1271
+223
Jan.-Dec. 2006
1325
1271
+54
Jan.-Dec. 2005
1442
1271
+171
Jan.-Dec. 2004
1356
1271
+85
Jan.-Dec. 2003
939
1271
-332
Jan.-Dec. 2002
1497
1271
+226
Jan.-Dec. 2001
1155
1271
-116
Jan.-Dec. 2000
1020
1271
-251
Jan.-Dec. 1999
1275
1271
+4
Jan.-Dec. 1998
1422
1271
+151
Jan.-Dec. 1997
1092
1271
-179




Questions or comments should be sent to R.Giannola