Nantucket County Weather in July
Average highs run from 73°F on July 1 to 77°F on July 31, and lows from 60°F to 64°F. Normal precipitation for the month is 2.72 in over about 12 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
- 75°F
- Average low
- 63°F
- Precipitation
- 2.72 in
- Record high
- 92°FJul 1, 1964
- Record low
- 47°FJul 8, 1972
- Chance of a freeze
- 0%
- Daylight
- 15 h 06 min to 14 h 24 min
- Cloud cover
- 61%
- Humidity
- 89%
- Dew point
- 64°F
- Wind
- 12.5 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Jul 1 | 73°F | 60°F | 92°F 1964 | 54°F 1952 | 38% |
| Jul 2 | 73°F | 60°F | 84°F 1968 | 53°F 2007 | 38% |
| Jul 3 | 74°F | 61°F | 88°F 2026 | 50°F 1971 | 38% |
| Jul 4 | 74°F | 61°F | 90°F 2010 | 50°F 1971 | 38% |
| Jul 5 | 74°F | 61°F | 85°F 2002 | 51°F 1968 | 38% |
| Jul 6 | 74°F | 61°F | 91°F 2010 | 50°F 1968 | 38% |
| Jul 7 | 74°F | 62°F | 85°F 1970 | 50°F 1969 | 38% |
| Jul 8 | 75°F | 62°F | 88°F 1971 | 47°F 1972 | 38% |
| Jul 9 | 75°F | 62°F | 86°F 1981 | 50°F 1949 | 38% |
| Jul 10 | 75°F | 62°F | 85°F 2019 | 49°F 2009 | 38% |
| Jul 11 | 75°F | 62°F | 84°F 1981 | 47°F 2009 | 38% |
| Jul 12 | 75°F | 62°F | 85°F 1966 | 48°F 1973 | 38% |
| Jul 13 | 75°F | 63°F | 88°F 2022 | 53°F 1973 | 38% |
| Jul 14 | 76°F | 63°F | 89°F 1952 | 52°F 1970 | 38% |
| Jul 15 | 76°F | 63°F | 83°F 2013 | 54°F 1948 | 38% |
| Jul 16 | 76°F | 63°F | 87°F 2013 | 52°F 1948 | 38% |
| Jul 17 | 76°F | 63°F | 88°F 1968 | 53°F 1962 | 38% |
| Jul 18 | 76°F | 63°F | 90°F 1969 | 53°F 1962 | 39% |
| Jul 19 | 76°F | 63°F | 91°F 1977 | 55°F 1979 | 39% |
| Jul 20 | 76°F | 63°F | 88°F 1952 | 53°F 2001 | 39% |
| Jul 21 | 76°F | 64°F | 88°F 2020 | 50°F 2001 | 39% |
| Jul 22 | 76°F | 64°F | 88°F 2022 | 52°F 2012 | 39% |
| Jul 23 | 76°F | 64°F | 89°F 1952 | 52°F 1966 | 40% |
| Jul 24 | 76°F | 64°F | 88°F 1952 | 52°F 1966 | 40% |
| Jul 25 | 77°F | 64°F | 85°F 2010 | 55°F 1953 | 40% |
| Jul 26 | 77°F | 64°F | 84°F 1961 | 52°F 1976 | 40% |
| Jul 27 | 77°F | 64°F | 88°F 2021 | 51°F 2001 | 40% |
| Jul 28 | 77°F | 64°F | 88°F 1999 | 55°F 2001 | 40% |
| Jul 29 | 77°F | 64°F | 90°F 1949 | 53°F 2001 | 40% |
| Jul 30 | 77°F | 64°F | 86°F 1949 | 53°F 1968 | 41% |
| Jul 31 | 77°F | 64°F | 88°F 2002 | 50°F 2017 | 41% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- July 1
- sunrise 5:11 AM, sunset 8:17 PM
- July 31
- sunrise 5:34 AM, sunset 7:58 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014756 (Nantucket Mem AP), public domain. Records: NOAA GHCN-Daily, station USW00014756, 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.