Monthly climate averages for Maynard, United States. Based on 10-year ERA5 reanalysis data.
Cfa Humid Subtropical
Climate OverviewMaynard, United States in September has warm conditions, with highs averaging 23.3°C (74°F).
This month falls at the beginning of Autumn.
Daily highs in September gradually drop from around 25°C (77°F) at the start to 21°C (70°F) by month's end.
Rainfall is heaviest during the first third of the month, while the middle tends to be drier.
Expect around 9.7h of sunshine at the start of September, decreasing to 8.1h by the end.
The warmest days tend to fall around the 5th, averaging 25.6°C (78°F).
Compared to August, this month is about 4°C cooler with 3 fewer rainy days. Temperatures begin dropping heading into October.
Daily averages based on historical data (2016–2025)
Daytime temperatures around 23°C (74°F) are ideal for full-day outdoor exploration.
Rain usually comes in shorter passing showers rather than all-day rain.
Recent yearly records for September have stayed close to the long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 3°C / -5°C | -2°C / -10°C | 9days (87 mm) Wet | 5.9h Fair | 67% Muggy | 2.2 Moderate | Poor | View Details |
| February | 5°C / -4°C | 1°C / -9°C | 9days (79 mm) Wet | 6.8h Fair | 69% Muggy | 3.3 Moderate | Poor | View Details |
| March | 9°C / -1°C | 5°C / -5°C | 10days (98 mm) Wet | 7.8h Good | 66% Muggy | 4.2 Moderate | Poor | View Details |
| April | 14°C / 4°C | 11°C / 1°C | 12days (103 mm) Wet | 8.4h Good | 68% Muggy | 5.2 High | Fair | View Details |
| May | 20°C / 10°C | 19°C / 8°C | 11days (93 mm) Wet | 9.5h Good | 72% Muggy | 6.1 High | Good | View Details |
| June best | 25°C / 16°C | 26°C / 15°C | 11days (78 mm) Wet | 10.8h Excellent | 71% Muggy | 6.7 High | Excellent | View Details |
| July best | 29°C / 19°C | 31°C / 21°C | 12days (102 mm) Wet | 11.1h Excellent | 72% Muggy | 6.9 High | Excellent | View Details |
| August best | 28°C / 19°C | 29°C / 20°C | 11days (85 mm) Wet | 10.6h Excellent | 72% Muggy | 6.4 High | Excellent | View Details |
| September best | 23°C / 15°C | 24°C / 15°C | 8days (85 mm) Wet | 8.5h Good | 75% Muggy | 5.1 High | Excellent | View Details |
| October | 17°C / 10°C | 16°C / 7°C | 10days (102 mm) Wet | 6.9h Fair | 75% Muggy | 3.7 Moderate | Good | View Details |
| November | 10°C / 3°C | 7°C / -1°C | 9days (78 mm) Wet | 6.5h Fair | 71% Muggy | 2.6 Moderate | Poor | View Details |
| December | 5°C / -2°C | 1°C / -7°C | 10days (118 mm) Wet | 5.5h Fair | 71% Muggy | 1.9 Low | Poor | View Details |
Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.
A waterproof jacket or compact umbrella is recommended for occasional showers.
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