Colorado Climate Data

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

Below is a collection of Colorado Climate Data and outdoor design conditions. We included an Colorado 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 Colorado we would consider adding to the Colorado 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 Colorado Manual J taken care of.

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ColoradoElevation 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
Akron, Washington Co. airport46234039163-28-20-12H2.14
Alamosa, San Luis Valley          
Regional airport754337-108355-54-45-36H5.96
Aspen, Pitkin Co. SAWRS80183918254-58-49-40H6.12
Buckley ANGB56634079059-47-39-31H2.11
Colorado Springs Municipal airport61713968859-44-36-28H2.6
Cortez, Montezuma Co. airport59153799159-46-38-30H2.56
Craig, Creig-Moffit Field628341-98857-50-41-33H5.7
Denver international airport54304079260-44-35-27H2.06
Denver Stapleton international airport52854039160-42-33-25H2.05
Denver, Centennial airport58834049060-40-32-24H2.41
Durango-La Plata C. airport66863778857-52-44-35H3.27
Eagle Co. airport653540-28557-49-40-32H5.1
Fort Collins Automated Weather Observation System50164069160-41-33-25H2.35
Fort Collins SAWRS50034138761-32-24-16M2.5
Grand Junction, Walker Field483939129561-44-36-28H1.48
Greeley-Weld Co. airport Automated Weather Observation System46594019262-34-26-19H2.49
Gunnison Co. Automated Weather Observation System767439-118152-63-54-45H9.03
airport Automated Weather Observation System66014018455-56-47-39H4.74
La Junta Municipal airport42163879764-32-25-17H1.36
Lamar Municipal airport37043899867-20-12-5H1.43
Montrose Co. airport575839109159-46-38-29H2.13
Pueblo Memorial airport47213859662-38-30-22H1.68
Rifle, Garfield Co. Regional airport55484089359-51-43-35H2.47
Trinidad, Las Animas Co. airport57453789160-41-33-25H1.76
Colorado State Averages5794.035714285739.17857142862.589.642857142959.0714285714-44.4285714286-36.1071428571-28H3.9957142857


Colorado Climate Data
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Colorado Climate Data
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