PaintDays

When to paint a house exterior in Oconomowoc, WI

When to paint in Oconomowoc, WI

A short season: book early and expect weather delays. The painting window is July to August, with 2 good months a year. The best month is July, at about 16 painting days. Book a painter by May.

If you want the house done in July to August, call for quotes in May or earlier; a job pushed past August is likely to wait until next year. For a deck, the months with enough staining days to spare are Jun, Jul, Aug, Sep.

  1. under 1Jan
  2. under 1Feb
  3. under 1Mar
  4. 1Apr
  5. 4May
  6. 9Jun
  7. 16Jul
  8. 15Aug
  9. 7Sep
  10. 2Oct
  11. 1Nov
  12. under 1Dec

Month by month

MonthPainting daysStaining daysWith low-temp paintAvg low / high
Januaryunder 1under 1under 116° / 29°F
Februaryunder 1under 1116° / 34°F
Marchunder 1under 1127° / 45°F
April11635° / 57°F
May431247° / 70°F
June961357° / 79°F
July16131761° / 82°F
August15131759° / 80°F
September771554° / 75°F
October221041° / 61°F
November11430° / 48°F
Decemberunder 1under 1under 123° / 37°F

Deck stain does best in August. Low-temperature paint adds about 42 days a year here.

Towns near Oconomowoc compared

4 of the 6 nearest places get more painting days, the most in Pewaukee (77 a year, 13 miles east). 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. Hartland, Watertown are read from the same station as Oconomowoc, so their numbers match; the real difference is the distance from that station.

PlaceFrom OconomowocPainting days a yearWindowStation
Hartland, WI8 mi east55July to Augustsame station
Pewaukee, WI13 mi east77June to SeptemberGeneral Mitchell Internationa
Lisbon, WI13 mi east77June to SeptemberGeneral Mitchell Internationa
Watertown, WI13 mi northwest55July to Augustsame station
Sussex, WI14 mi east77June to SeptemberGeneral Mitchell Internationa
Waukesha, WI14 mi southeast77June to SeptemberGeneral Mitchell Internationa

How Oconomowoc ranks in WI

Of 98 WI places with 10,000 people or more, Oconomowoc (population 20,002, 42nd largest) ranks 91st for painting days, 15 days below the state median of 69. The longest season in the state is Appleton, 111 days, 82 miles north. The shortest is Superior at 29. 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 Watertown Municipal Airport (12.1 miles away), 2015 to 2024, NOAA Global Summary of the Day. A month is good at 12+ painting days and possible at 6+.