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Concrete Pouring · state guide

Concrete Pouring Weather in Maryland: Best Months by City

Concrete Pouring season in Maryland, city by city: peak months, season boundaries, and annual workable-day counts from NOAA 1991–2020 normals. Baltimore leads with 156 workable days a year; Hagerstown runs the shortest at 139.

8 Maryland cities, ranked by season

Maryland is not one climate: Baltimore banks 156 workable concrete pouring days a year while Hagerstown gets 139 — 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 (40–90°F, nights 40°F+).

If one month anchors the Maryland calendar it's October, 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 concrete pouring guide for the physics behind each rule.

Chasing the season across state lines? Step back to Concrete Pouring in Maine or push on to Concrete Pouring in Massachusetts.

Cities in Maryland

Peak months and season boundaries from NOAA 1991–2020 normals; season = months with at least 8 workable days.
CityPeak monthsSeasonWorkable days/yr
Baltimore Oct, Sep, Aug August–November 156
Hagerstown Oct, Sep, Aug April–October 139
Frederick Oct, Aug, Jul April–October 155
Waldorf Oct, Sep, Aug April–October 141
Columbia Aug, Oct, Sep April–October 153
Germantown Oct, Sep, Aug April–October 141
Silver Spring Oct, Sep, Aug April–October 145
Annapolis Oct, Aug, Sep April–October 145

Top 8 Maryland calendars for concrete pouring

The rules behind these numbers

Typical label thresholds for concrete pouring — the single ruleset used by every check on this page.
CheckThresholdWhy it matters
Air temperature 40–90°F — ideal 50–85°F DIY pours work from 40–90°F; 50–85°F is the sweet spot.
Overnight low ≥40°F during the first 48 h A low under 40°F inside the first 48 hours puts you in cold-weather concreting — not a DIY window.
Dry before no soaking (≥1.0") in the prior 24 h Rain before the pour only matters if the ground is soaked or standing in water.
Dry after <0.1" rain for 6 h after (12 h light rain after finishing still risks surface marks) A downpour in the first 6 hours can wash the surface; after final set, rain actually helps curing.
Wind ≤20 mph (rapid surface drying up to 28 mph) Hot wind pulls bleed water out faster than the slab can handle.

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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