Barometric Pressure in Littleton, United States 
1015.9 hPa
13.6 ℃
87%
0.81 m/s
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The average pressure in Littleton, New Hampshire, United States today is , which is considered normal. Pressure is trending rising.
Weather prediction: Fairly fine, possible showers early
Rapid Pressure Changes
Rapid pressure changes detected in Littleton, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Fall : ()
- Rapid Rise : ()
- Rapid Rise : ()
The daily total fluctuation in pressure in Littleton is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Littleton hour by hour across the next 6 hourly readings.
Littleton's air pressure changes with the weather. When high pressure comes, it's usually sunny and calm. Low pressure brings clouds, rain, or snow.
Littleton's geography affects air pressure. It's in a valley near mountains, which can trap or push air masses. This can make pressure changes more extreme.
In winter, high pressure brings cold air. Low pressure brings snow. In summer, low pressure can bring thunderstorms.
Littleton has a humid continental climate. This means it has big pressure changes throughout the year. Cold winters have high pressure, while warm summers have lower pressure.