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Driveway Sealing Weather in Indiana: Best Months by City

Driveway Sealing season in Indiana, city by city: peak months, season boundaries, and annual workable-day counts from NOAA 1991–2020 normals. Evansville leads with 132 workable days a year; South Bend runs the shortest at 83.

Indiana is not one climate: Evansville banks 132 workable driveway sealing days a year while South Bend gets 83 — 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 (55–90°F, nights 50°F+).

If one month anchors the Indiana calendar it's August, the statewide leader in workable days. Use this page to pick the month, then the city page's 10-day strip to pick the days — and the national driveway sealing guide for the physics behind each rule.

Cities in Indiana

Peak months and season boundaries from NOAA 1991–2020 normals; season = months with at least 8 workable days.
CityPeak monthsSeasonWorkable days/yr
Indianapolis Aug, Jul, Sep May–September 97
Fort Wayne Aug, Jul, Jun May–September 87
South Bend Aug, Jul, Jun June–September 83
Evansville Aug, Sep, Jul May–October 132
Lafayette Aug, Jul, Sep May–September 86
Elkhart Aug, Jul, Jun May–September 89
Bloomington Aug, Sep, Jul May–September 100
Fishers Aug, Jul, Sep May–September 93
Carmel Aug, Jul, Sep May–September 93
Muncie Aug, Sep, Jul May–September 95
Anderson Aug, Sep, Jul May–September 100
Terre Haute Aug, Jul, Sep May–September 93

The rules behind these numbers

Typical label thresholds for driveway sealing — the single ruleset used by every check on this page.
CheckThresholdWhy it matters
Air temperature 55–90°F, and rising Sealer wants 55°F and rising — pavement must be warm enough to cure the emulsion.
Overnight low ≥50°F during the first 24 h The first 24 hours of cure need overnight lows of 50°F or better.
Dry before ≤0.05" rain in the prior 24 h Asphalt must be fully dry; sealer will not bond to damp pavement.
Dry after <0.05" rain for 36 h after (48 h cool or shaded driveways want 48 h) Most sealers list 24–48 dry hours; this site checks 36.
Evening dew-point spread ≥5°F from 6–11 pm Heavy evening dew can blush an uncured sealcoat.
Daytime humidity ≤85% Water-based sealer dries by evaporation; humid air stalls it.
Wind ≤20 mph (dust and debris in wet sealer up to 28 mph) Strong wind drops leaves and grit into the wet coat.

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

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