WorkWindow

Exterior Painting Weather in Tennessee: Best Months by City

Exterior Painting season in Tennessee, city by city: peak months, season boundaries, and annual workable-day counts from NOAA 1991–2020 normals. Chattanooga leads with 144 workable days a year; Franklin runs the shortest at 114.

Tennessee is not one climate: Chattanooga banks 144 workable exterior painting days a year while Franklin gets 114 — a spread the table below itemizes month by month. Season boundaries mark the first and last month averaging 8+ workable days against the label rules (50–90°F, nights 35°F+).

Statewide, September is the strongest month — it tops or ties the table in most listed cities. The live strips on each city page decide the week; this table decides the month. Scoring rules: methodology; the national playbook: the exterior painting guide.

Cities in Tennessee

Peak months and season boundaries from NOAA 1991–2020 normals; season = months with at least 8 workable days.
CityPeak monthsSeasonWorkable days/yr
Nashville Oct, Sep, May March–June 126
Memphis Oct, Sep, May March–June 139
Knoxville Sep, Aug, Oct April–October 138
Chattanooga Oct, Sep, May March–June 144
Clarksville Oct, Sep, Jun April–October 132
Murfreesboro Aug, Oct, Sep April–October 143
Johnson City Sep, Aug, May April–October 123
Kingsport Oct, Sep, Aug April–October 139
Franklin Oct, Sep, Jun April–June 114

The rules behind these numbers

Typical label thresholds for exterior painting — the single ruleset used by every check on this page.
CheckThresholdWhy it matters
Air temperature 50–90°F (low-temp formulas from 35°F) Standard latex wants 50°F+. Some low-temperature formulas are rated down to 35°F.
Overnight low ≥35°F during the first 24 h (≥40°F preferred) Paint keeps curing overnight; a low under 40°F stalls standard latex.
Dry before ≤0.05" rain in the prior 12 h; watch back to 24 h The surface must be dry to the touch and out of a recent soak.
Dry after <0.05" rain for 24 h after Rain inside the first 24 hours can streak or wash fresh paint.
Evening dew-point spread ≥5°F from 6–11 pm Surface should stay at least 5°F above the dew point; dew flat-spots fresh paint.
Daytime humidity ≤80% High humidity extends recoat and cure times.
Wind ≤15 mph (brush only up to 20 mph) Wind dries the leading edge too fast and carries overspray.

Always follow your product label — formulas vary. The table above is the typical range across major manufacturers, not a promise about your can.

Other tasks in Tennessee

More