Montana Climate Data
We offer an Montana Manual J for $79 in 4-6 hours. We can also offer Montana Manual S $79 and Montana Manual D $99.
Below is a collection of Montana Climate Data and outdoor design conditions. We included an Montana 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 Montana we would consider adding to the Montana Climate Data table simply email it to plans@manualjs.com
We can also create a Manual J using climate data from the tables below. Email pdf plans, jobsite address, and square footage to plans@manualjs.com and we will get your Montana Manual J taken care of.
| Montana | Elevation in Feet | Latitude North Degrees | Heating 99% Outdoor Dry Bulb | Cooling Outdoor Air 1% Dry Bulb | Cooling Outdoor Air Coincident Wet Bulb | Cooling Design Grains 55% Relative Humidity Indoors | Cooling Design Grains 45% Relative Humidity Indoors | Cooling Design Grains 45% Relative Humidity Indoors | Daily Rating | Heating Design Days 65 degrees/Colling Design Days 50 degrees Ratio |
| Billings, Logan international airport | 3570 | 46 | -6 | 91 | 62 | -33 | -26 | -18 | H | 2.65 |
| Bozeman, Gallatin Field | 4449 | 46 | -10 | 88 | 60 | -36 | -28 | -20 | H | 5.14 |
| Butte, Bert Mooney airport | 5535 | 46 | -12 | 84 | 57 | -47 | -39 | -31 | H | 7.86 |
| Cut Bank Municipal airport | 3839 | 49 | -13 | 85 | 59 | -38 | -31 | -23 | H | 6.13 |
| Dillon Airport | 5223 | 45 | 1 | 86 | 60 | -36 | -28 | -20 | H | 4.95 |
| Glasgow international airport | 2293 | 48 | -17 | 91 | 64 | -25 | -18 | -11 | H | 3.66 |
| Glendive Automated Weather Observation System | 2457 | 47 | -12 | 91 | 64 | -22 | -14 | -7 | H | 3.74 |
| Great Falls | 3707 | 47 | -6 | 87 | 60 | -38 | -31 | -23 | H | 4.29 |
| Great Falls international airport | 3658 | 47 | -11 | 89 | 60 | -37 | -30 | -22 | H | 3.96 |
| Havre City-Co. airport | 2598 | 49 | -18 | 91 | 63 | -29 | -22 | -15 | H | 3.99 |
| Helena Regional airport | 3868 | 47 | -8 | 89 | 61 | -37 | -29 | -21 | H | 3.81 |
| Jordan Remote Automatic Meterological Observing System | 2661 | 47 | -18 | 93 | 63 | -30 | -23 | -16 | H | 3.72 |
| Kalispell, Glacier Park international airport | 2972 | 48 | -1 | 86 | 62 | -27 | -20 | -13 | H | 5.53 |
| Lewistown Municipal airport | 4147 | 47 | -10 | 87 | 60 | -35 | -28 | -20 | H | 5.32 |
| Livingston airport | 4656 | 45 | –14 | 87 | 60 | -36 | -28 | -20 | H | 4.21 |
| Malmstrom Air Force Base (Great Falls) | 3465 | 48 | -10 | 90 | 62 | -33 | -26 | -18 | H | 3.16 |
| Miles City Municipal airport | 2635 | 46 | -12 | 95 | 65 | -25 | -18 | -10 | H | 2.68 |
| Missoula international airport | 3189 | 47 | 2 | 89 | 62 | -32 | -25 | -17 | H | 4.11 |
| Sidney Muncipal airport | 1985 | 48 | -13 | 90 | 67 | -9 | -2 | 5 | H | 3.85 |
| Montana State Average | 3521.4210526316 | 47 | -9.6666666667 | 88.8947368421 | 61.6315789474 | -31.8421052632 | -24.5263157895 | -16.8421052632 | H | 4.3557894737 |
