When to paint a house exterior in Casper, WY
When to paint in Casper, WY
Exterior painting here is a gamble in any month. The painting window is not reliable in any month, with 0 good months a year. The best month is August, at about 4 painting days.
If you cannot avoid the thin months, ask the painter for a low-temperature latex and watch the forecast for a dry run of 4 days before you commit. No month here reliably has the dry back-to-back days deck stain needs, so consider a solid stain or a sealer you can apply in shorter breaks.
- under 1Jan
- under 1Feb
- under 1Mar
- under 1Apr
- under 1May
- 2Jun
- 3Jul
- 4Aug
- 3Sep
- 1Oct
- under 1Nov
- under 1Dec
Month by month
| Month | Painting days | Staining days | With low-temp paint | Avg low / high |
|---|---|---|---|---|
| January | under 1 | under 1 | under 1 | 15° / 36°F |
| February | under 1 | under 1 | under 1 | 13° / 39°F |
| March | under 1 | under 1 | 2 | 21° / 50°F |
| April | under 1 | under 1 | 3 | 27° / 60°F |
| May | under 1 | under 1 | 10 | 35° / 69°F |
| June | 2 | 2 | 13 | 46° / 84°F |
| July | 3 | 1 | 7 | 51° / 92°F |
| August | 4 | 4 | 11 | 50° / 89°F |
| September | 3 | 2 | 17 | 42° / 81°F |
| October | 1 | 1 | 8 | 31° / 64°F |
| November | under 1 | under 1 | 5 | 23° / 50°F |
| December | under 1 | under 1 | 1 | 16° / 39°F |
Deck stain does best in August. Low-temperature paint adds about 66 days a year here.
Towns near Casper compared
4 of the 6 nearest places get more painting days, the most in Cheyenne (37 a year, 142 miles southeast). A gap like that between towns is usually elevation, a coast or a lake, which is why a painter from a few towns over can be on a different schedule.
| Place | From Casper | Painting days a year | Window | Station |
|---|---|---|---|---|
| Riverton, WY | 105 mi west | 29 | June to August | Riverton Regional Airport |
| Gillette, WY | 107 mi north | 23 | July | Gillette-Campbell County. Airport |
| Laramie, WY | 112 mi south | 12 | none reliable | Laramie Regional Airport |
| Sheridan, WY | 139 mi north | 12 | none reliable | Sheridan County Airport |
| Cheyenne, WY | 142 mi southeast | 37 | August | Cheyenne Airport |
| Scottsbluff, NE | 152 mi southeast | 19 | none reliable | Western Ne Regional/Heilig Fi |
How Casper ranks in WY
Of 11 WY places with 10,000 people or more, Casper (population 58,823, 2nd largest) ranks 8th for painting days, 17 days below the state median of 29. The longest season in the state is Cody, 50 days, 179 miles northwest. The shortest is Jackson at 6. Switching to low-temperature paint here is worth 66 extra days, more than most of the summer months on their own.
Where these numbers come from
Daily records from Natrona County International (8.6 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.