This page tracks the highest and lowest temperatures ever officially recorded at 26 weather stations across New Hampshire, United States, based on measurements dating from 1911 to 2026. Use the interactive map or the list below to see the record high and record low temperature (in Fahrenheit) for each location, along with the date each record was set.
| Location | Temperature | Record Date |
| Berlin | 97 °F (36 °C) | May 30, 1998 |
| Berlin | 98 °F (37 °C) | July 7, 1921 |
| Colebrook | 95 °F (35 °C) | August 3, 1975 |
| Concord | 102 °F (39 °C) | July 3, 1966 |
| Durham | 103 °F (39 °C) | July 4, 1911 |
| Epping | 100 °F (38 °C) | August 2, 1975 |
| Franklin | 102 °F (39 °C) | August 10, 1949 |
| Greenland | 104 °F (40 °C) | August 2, 1975 |
| Hanover | 103 °F (39 °C) | August 2, 1975 |
| Hudson | 102 °F (39 °C) | July 15, 1995 |
| Isle Of Shoalsn | 96 °F (35 °C) | July 22, 2011 |
| Keene | 97 °F (36 °C) | August 26, 2007 |
| Keene | 104 °F (40 °C) | July 3, 1911 |
| Keene | 100 °F (38 °C) | August 26, 1948 |
| Laconia | 100 °F (38 °C) | August 18, 1987 |
| Lebanon | 100 °F (38 °C) | June 24, 2025 |
| Manchester | 105 °F (41 °C) | August 3, 1988 |
| Manchester | 103 °F (39 °C) | July 22, 2011 |
| Mt Washington | 72 °F (22 °C) | August 2, 1975 |
| Nashua | 106 °F (41 °C) | July 4, 1911 |
| Newport | 97 °F (36 °C) | July 15, 1995 |
| North Conway | 103 °F (39 °C) | August 3, 1975 |
| North Stratford | 97 °F (36 °C) | June 22, 1989 |
| Peterborough | 95 °F (35 °C) | July 23, 2011 |
| Pinkham Notch | 93 °F (34 °C) | July 20, 1982 |
| Pittsburg | 93 °F (34 °C) | July 19, 1953 |
The highest temperature ever officially recorded in New Hampshire, United States was 106 °F (41 °C), set in Nashua on July 4, 1911.
The lowest temperature ever officially recorded in New Hampshire, United States was -47 °F (-44 °C), set in Mt Washington on February 4, 2023.
This page includes record high and low temperature data for 26 weather stations in New Hampshire, United States.
The record highs and lows on this page span from 1911 to 2026 and are updated whenever a new station record is set.