Derry Weather in July
Average highs run from 81°F on July 1 to 82°F on July 31, and lows from 59°F to 60°F. Normal precipitation for the month is 3.60 in over about 13 wet days.
July day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 82°F
- Average low
- 60°F
- Precipitation
- 3.60 in
- Record high
- 103°FJul 22, 2011
- Record low
- 46°FJul 17, 1954
- Chance of a freeze
- 0%
- Days of 90°F or more
- 4.9
- Daylight
- 15 h 18 min to 14 h 31 min
- Cloud cover
- 59%
- Humidity
- 77%
- Dew point
- 62°F
- Wind
- 3.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jul 1 | 81°F | 59°F | 95°F 2018 | 50°F 1952 | 44% | 0% |
| Jul 2 | 81°F | 59°F | 97°F 2026 | 50°F 2007 | 44% | 0% |
| Jul 3 | 81°F | 59°F | 98°F 2002 | 48°F 2001 | 44% | 0% |
| Jul 4 | 82°F | 59°F | 97°F 1949 | 52°F 1953 | 43% | 0% |
| Jul 5 | 82°F | 60°F | 99°F 2010 | 51°F 1953 | 43% | 0% |
| Jul 6 | 82°F | 60°F | 99°F 2010 | 53°F 2001 | 43% | 0% |
| Jul 7 | 82°F | 60°F | 95°F 2010 | 50°F 1951 | 43% | 0% |
| Jul 8 | 82°F | 60°F | 96°F 2024 | 49°F 1949 | 42% | 0% |
| Jul 9 | 82°F | 60°F | 94°F 1955 | 50°F 1954 | 42% | 0% |
| Jul 10 | 82°F | 60°F | 96°F 2024 | 48°F 1953 | 42% | 0% |
| Jul 11 | 82°F | 60°F | 95°F 2024 | 47°F 1953 | 42% | 0% |
| Jul 12 | 82°F | 60°F | 93°F 2023 | 50°F 1999 | 41% | 0% |
| Jul 13 | 82°F | 60°F | 93°F 2016 | 54°F 2000 | 41% | 0% |
| Jul 14 | 82°F | 60°F | 98°F 1952 | 51°F 1999 | 41% | 0% |
| Jul 15 | 82°F | 60°F | 97°F 2024 | 55°F 2001 | 41% | 0% |
| Jul 16 | 82°F | 60°F | 97°F 2024 | 49°F 1954 | 41% | 0% |
| Jul 17 | 82°F | 60°F | 97°F 1999 | 46°F 1954 | 41% | 0% |
| Jul 18 | 82°F | 60°F | 95°F 1953 | 57°F 1954 | 41% | 0% |
| Jul 19 | 82°F | 60°F | 98°F 2020 | 52°F 2025 | 41% | 0% |
| Jul 20 | 82°F | 60°F | 97°F 2019 | 51°F 2026 | 41% | 0% |
| Jul 21 | 82°F | 60°F | 97°F 1955 | 47°F 1966 | 41% | 0% |
| Jul 22 | 82°F | 60°F | 103°F 2011 | 49°F 2025 | 41% | 0% |
| Jul 23 | 82°F | 60°F | 100°F 1952 | 54°F 2000 | 40% | 0% |
| Jul 24 | 82°F | 60°F | 98°F 2022 | 52°F 1949 | 40% | 0% |
| Jul 25 | 82°F | 60°F | 94°F 2025 | 50°F 1953 | 40% | 0% |
| Jul 26 | 82°F | 60°F | 93°F 1955 | 49°F 2026 | 40% | 0% |
| Jul 27 | 82°F | 60°F | 96°F 1949 | 50°F 2026 | 40% | 0% |
| Jul 28 | 82°F | 60°F | 97°F 1949 | 51°F 2001 | 40% | 0% |
| Jul 29 | 82°F | 60°F | 100°F 2025 | 52°F 1953 | 40% | 0% |
| Jul 30 | 82°F | 60°F | 99°F 1949 | 54°F 1952 | 39% | 0% |
| Jul 31 | 82°F | 60°F | 93°F 1954 | 53°F 1955 | 39% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- July 1
- sunrise 5:10 AM, sunset 8:28 PM
- July 31
- sunrise 5:36 AM, sunset 8:07 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00279278 (W Hampstead), public domain. Records: NOAA GHCN-Daily, station USW00014710, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.