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Portsmouth

New Hampshire, United States

Climate metrics

Overall Comfort Very Good
Summer Feel Mild
Average Summer High Comfortable · 79°F
Days Above 90°F 0 days/year
Winter Feel Comfortable · 10°F
Average Winter Low 10°F / -12°C
Days Below Freezing 89 days/year
Humidity Very Humid · 83% average
Comfortable Months 8 months
Solar Exposure 1,367 peak-sun-hr/yr · Poor
Air Quality Good
Current AQI AQI 32 · Good
Recent Fine-Particle Pollution Good · 5.2 µg/m³ multi-year average
Best Months JUN, JUL, AUG
Toughest Months DEC, JAN, FEB
Allergy Levels Poor
Heat Risk Low
Drought Risk High
Weather Volatility 3.5 / 5 · Strong