Pennsylvania Climate Data

We offer an Pennsylvania Manual J for $79 in 4-6 hours.  We can also offer Pennsylvania Manual S $79 and Pennsylvania Manual D $99.

Below is a collection of Pennsylvania Climate Data and outdoor design conditions. We included an Pennsylvania state average of each category at the bottom of the Manual J climate data table. We created this to allow an easy to use free resource for Manual J professionals to use on jobsites, in the field, and while calculating Manual J heat loss and heat gain reports. If you have a custom set of data from Pennsylvania we would consider adding to the Pennsylvania Climate Data table simply email it to

We can also create a Manual J using climate data from the tables below. Email pdf plans, jobsite address, and square footage to and we will get your Pennsylvania Manual J taken care of.

Free Manual J

PennsylvaniaElevation in FeetLatitude North DegreesHeating 99% Outdoor Dry BulbCooling Outdoor Air 1% Dry BulbCooling Outdoor Air Coincident Wet BulbCooling Design Grains 55% Relative Humidity IndoorsCooling Design Grains 45% Relative Humidity IndoorsCooling Design Grains 45% Relative Humidity IndoorsDaily RatingHeating Design Days 65 degrees/Colling Design Days 50 degrees Ratio
Allentown, Lehigh Valley international airport38441128873243138M1.77
Altoona, Blair Co. airport147040108671202734M2.12
Bradford Regional airport21494228168101825M4.07
Butler Co. Automated Weather Observation System12474198471212835M2.29
Dubois airport18244158369132027M2.84
Erie International airport73842108472263340L2.17
Harrisburg, Capital City airport34840139073222935M1.53
Johnstown, Cambria Co. airport22834078269142128M2.52
Middletown, Harrisburg international airport31240159074303643M1.4
New Castle8254178872222936M2.32
Philadelphia international airport3040179175313845M1.17
Philadelphia, Northeast airport11840169075333946M1.32
Philadelphia, Willow Grove Naval Auxilary Air Station36140149074303743M1.32
Pittsburgh, Allegheny Co. airport127340108771192633M1.61
Pittsburgh international airport12044198771202734M1.82
Reading, Spaatz Field35440139073253138M1.55
State College12394078771192633M2.42
Sunbury (Williamsport DD)4304078972202733M2.03
Washington Automated Weather Observation System11844098570152228M2.24
West Chester46640138974323945M1.65
Wilkes-Barre / Scranton international airport9614188671182531M2.19
Williamsport Regional airport5254198872202633M2.03
Willow Grove Naval Auxilary Air Station36140149074293642M1.4
Pennsylvania State Average889.483870967740.45161290329.516129032387.193548387171.967741935522.741935483929.580645161336.2903225806M2.0519354839


Pennsylvania Climate Data
Article Name
Pennsylvania Climate Data
Pennsylvania Climate Data
Publisher Name
Publisher Logo

Email order number, PDF Plans, jobsite address, and square footage to