Nassau County Weather in July
Average highs run from 91°F on July 1 to 92°F on July 31, and lows from 73°F to 74°F. Normal precipitation for the month is 6.77 in over about 14 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
- 92°F
- Average low
- 73°F
- Precipitation
- 6.77 in
- Record high
- 105°FJul 21, 1942
- Record low
- 61°FJul 8, 1972
- Chance of a freeze
- 0%
- Days of 90°F or more
- 23.6
- Daylight
- 14 h 06 min to 13 h 38 min
- Cloud cover
- 57%
- Humidity
- 78%
- Dew point
- 73°F
- Wind
- 4.0 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 | 91°F | 73°F | 100°F 1990 | 65°F 1981 | 46% |
| Jul 2 | 91°F | 73°F | 99°F 2019 | 65°F 2000 | 46% |
| Jul 3 | 92°F | 73°F | 100°F 1953 | 63°F 2000 | 45% |
| Jul 4 | 92°F | 73°F | 99°F 1954 | 65°F 2000 | 45% |
| Jul 5 | 92°F | 73°F | 98°F 1969 | 64°F 1947 | 45% |
| Jul 6 | 92°F | 73°F | 100°F 1969 | 64°F 1938 | 45% |
| Jul 7 | 92°F | 73°F | 100°F 1981 | 62°F 1938 | 45% |
| Jul 8 | 92°F | 73°F | 99°F 2016 | 61°F 1972 | 45% |
| Jul 9 | 92°F | 73°F | 101°F 1941 | 63°F 2006 | 45% |
| Jul 10 | 92°F | 73°F | 99°F 1980 | 65°F 2000 | 45% |
| Jul 11 | 92°F | 73°F | 100°F 1980 | 65°F 1963 | 45% |
| Jul 12 | 92°F | 73°F | 101°F 1980 | 67°F 1951 | 45% |
| Jul 13 | 92°F | 73°F | 102°F 1980 | 66°F 1974 | 45% |
| Jul 14 | 92°F | 73°F | 102°F 1951 | 63°F 1974 | 46% |
| Jul 15 | 92°F | 73°F | 102°F 1981 | 62°F 1974 | 46% |
| Jul 16 | 92°F | 73°F | 102°F 1981 | 67°F 2001 | 46% |
| Jul 17 | 92°F | 73°F | 103°F 1981 | 64°F 1980 | 46% |
| Jul 18 | 92°F | 73°F | 99°F 1981 | 68°F 1974 | 46% |
| Jul 19 | 92°F | 73°F | 101°F 2000 | 65°F 2011 | 46% |
| Jul 20 | 92°F | 73°F | 103°F 2000 | 68°F 2006 | 46% |
| Jul 21 | 92°F | 73°F | 105°F 1942 | 68°F 1972 | 46% |
| Jul 22 | 92°F | 74°F | 101°F 1942 | 67°F 1965 | 46% |
| Jul 23 | 92°F | 74°F | 99°F 1940 | 64°F 2007 | 46% |
| Jul 24 | 92°F | 74°F | 100°F 1940 | 68°F 1977 | 46% |
| Jul 25 | 92°F | 74°F | 101°F 1940 | 64°F 1977 | 46% |
| Jul 26 | 92°F | 74°F | 99°F 2025 | 67°F 2000 | 47% |
| Jul 27 | 92°F | 74°F | 100°F 2025 | 67°F 1978 | 47% |
| Jul 28 | 92°F | 74°F | 101°F 2016 | 70°F 2009 | 47% |
| Jul 29 | 92°F | 74°F | 101°F 2025 | 68°F 1954 | 47% |
| Jul 30 | 92°F | 74°F | 102°F 2010 | 66°F 1954 | 47% |
| Jul 31 | 92°F | 74°F | 102°F 1999 | 67°F 1954 | 47% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- July 1
- sunrise 6:28 AM, sunset 8:34 PM
- July 31
- sunrise 6:44 AM, sunset 8:22 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00013889 (Jacksonville), public domain. Records: NOAA GHCN-Daily, station USW00013889, 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.