Weather History for Portsmouth, NH
Data is available up to June 29, 2022.
Explore past weather data with the Old Farmer's Almanac Weather History tool. Find historical weather data by zip code and access weather archives from more than 1,300 stations across the United States and Canada, dating back to 1945. What was the weather like on your birthday or another date in history? Find out!
Weather data collected from the National Climatic Data Center Global Surface Summary of Day. Information from the NCDC may be incomplete. Not every station reports every day, and some stations never report certain values. To learn more about weather station terminology, please consult the Weather Observation Station page of the NCDC.