Monthly climate averages for Marlborough, United States. Based on 10-year ERA5 reanalysis data.
Cfa Humid Subtropical
Climate OverviewMarlborough, United States in June has warm conditions, with highs averaging 25°C (77°F). Rain falls on about 11 days this month.
This month falls at the beginning of Summer.
Daily highs in June gradually rise from around 23°C (73°F) at the start to 27°C (81°F) by month's end.
June sees fairly even rainfall, totalling about 79 mm across the month.
The warmest days tend to fall around the 25th, averaging 27.3°C (81°F).
Compared to May, this month is about 6°C warmer with 1 fewer rainy days. Temperatures will rise further into July.
Daily averages based on historical data (2016–2025)
Daytime temperatures around 25°C (77°F) are ideal for full-day outdoor exploration.
Rain usually comes in shorter passing showers rather than all-day rain.
2 of the last 5 yearly records were warmer than this month's long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 2°C / -5°C | -2°C / -10°C | 9days (89 mm) Wet | 5.9h Fair | 68% Muggy | 2.2 Moderate | Poor | View Details |
| February | 4°C / -5°C | 0°C / -9°C | 9days (80 mm) Wet | 6.8h Fair | 69% Muggy | 3.3 Moderate | Poor | View Details |
| March | 8°C / -1°C | 4°C / -6°C | 10days (99 mm) Wet | 7.8h Good | 66% Muggy | 4.2 Moderate | Poor | View Details |
| April | 14°C / 4°C | 11°C / 0°C | 12days (102 mm) Wet | 8.4h Good | 68% Muggy | 5.2 High | Fair | View Details |
| May | 20°C / 10°C | 19°C / 8°C | 12days (94 mm) Wet | 9.5h Good | 72% Muggy | 6.1 High | Good | View Details |
| June best | 25°C / 15°C | 26°C / 15°C | 11days (79 mm) Wet | 10.8h Excellent | 71% Muggy | 6.8 High | Excellent | View Details |
| July best | 28°C / 19°C | 30°C / 20°C | 13days (104 mm) Wet | 11h Excellent | 73% Muggy | 6.9 High | Excellent | View Details |
| August best | 27°C / 18°C | 29°C / 19°C | 10days (85 mm) Wet | 10.6h Excellent | 73% Muggy | 6.4 High | Excellent | View Details |
| September best | 23°C / 15°C | 23°C / 14°C | 8days (89 mm) Wet | 8.5h Good | 76% Humid | 5.1 High | Excellent | View Details |
| October best | 17°C / 9°C | 15°C / 7°C | 9days (104 mm) Wet | 7h Good | 76% Humid | 3.8 Moderate | Good | View Details |
| November | 10°C / 2°C | 7°C / -2°C | 9days (76 mm) Wet | 6.5h Fair | 71% Muggy | 2.7 Moderate | Poor | View Details |
| December | 4°C / -3°C | 0°C / -7°C | 10days (116 mm) Wet | 5.6h Fair | 72% Muggy | 1.9 Low | Poor | View Details |
Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.
A waterproof jacket or compact umbrella is recommended for occasional showers.
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