When to paint a house exterior in Marshalltown, IA
When to paint in Marshalltown, IA
A normal season: plan the job, do not leave it late. The painting window is June to September, with 4 good months a year. The best month is July, at about 17 painting days. Book a painter by April.
If you want the house done in June to September, call for quotes in April or earlier; a job pushed past September is likely to wait until next year. For a deck, the months with enough staining days to spare are May, Jun, Jul, Aug, Sep.
- under 1Jan
- under 1Feb
- under 1Mar
- 2Apr
- 7May
- 13Jun
- 17Jul
- 14Aug
- 12Sep
- 4Oct
- 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 | 13° / 29°F |
| February | under 1 | under 1 | 1 | 14° / 34°F |
| March | under 1 | under 1 | 4 | 29° / 49°F |
| April | 2 | 1 | 10 | 37° / 61°F |
| May | 7 | 6 | 14 | 50° / 73°F |
| June | 13 | 11 | 14 | 61° / 84°F |
| July | 17 | 13 | 17 | 64° / 84°F |
| August | 14 | 11 | 15 | 61° / 82°F |
| September | 12 | 12 | 18 | 55° / 79°F |
| October | 4 | 4 | 13 | 42° / 64°F |
| November | 1 | 1 | 5 | 29° / 49°F |
| December | under 1 | under 1 | 1 | 21° / 38°F |
Deck stain does best in July. Low-temperature paint adds about 42 days a year here.
Towns near Marshalltown compared
1 of the 6 nearest places get more painting days, the most in Newton (104 a year, 24 miles south); 2 get fewer, down to 62 a year. 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 Marshalltown | Painting days a year | Window | Station |
|---|---|---|---|---|
| Newton, IA | 24 mi south | 104 | May to September | Newton Municipal Airport |
| Ames, IA | 37 mi west | 68 | June to September | Ames Municipal Airport |
| Altoona, IA | 40 mi southwest | 72 | June to September | Des Moines International Airport |
| Cedar Falls, IA | 41 mi northeast | 62 | July to August | Waterloo Municipal Airport |
| Ankeny, IA | 41 mi southwest | 72 | June to September | Des Moines International Airport |
| Waterloo, IA | 42 mi northeast | 62 | July to August | Waterloo Municipal Airport |
How Marshalltown ranks in IA
Of 41 IA places with 10,000 people or more, Marshalltown (population 27,886, 17th largest) ranks 27th for painting days, 2 days below the state median of 72. The longest season in the state is Council Bluffs, 118 days, 162 miles west. The shortest is Le Mars at 54. Switching to low-temperature paint here is worth 42 extra days, more than most of the summer months on their own.
Where these numbers come from
Daily records from Marshalltown Municipal Airport (5.3 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.