Mendham Weather in July
Average highs run from 86°F on July 1 to 86°F on July 31, and lows from 64°F to 66°F. Normal precipitation for the month is 4.68 in over about 11 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
- 86°F
- Average low
- 66°F
- Precipitation
- 4.68 in
- Record high
- 107°FJul 7, 2010
- Record low
- 41°FJul 1, 1943
- Chance of a freeze
- 0%
- Days of 90°F or more
- 10.6
- Daylight
- 15 h 03 min to 14 h 21 min
- Cloud cover
- 59%
- Humidity
- 72%
- Dew point
- 63°F
- Wind
- 4.0 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 | 86°F | 64°F | 99°F 2021 | 41°F 1943 | 35% | 0% |
| Jul 2 | 86°F | 65°F | 98°F 2018 | 42°F 1940 | 35% | 0% |
| Jul 3 | 86°F | 65°F | 99°F 2018 | 42°F 1939 | 35% | 0% |
| Jul 4 | 86°F | 65°F | 103°F 1966 | 42°F 1933 | 35% | 0% |
| Jul 5 | 86°F | 65°F | 102°F 1949 | 44°F 1971 | 35% | 0% |
| Jul 6 | 86°F | 65°F | 103°F 1999 | 42°F 1940 | 35% | 0% |
| Jul 7 | 86°F | 65°F | 107°F 2010 | 45°F 1979 | 35% | 0% |
| Jul 8 | 86°F | 65°F | 103°F 2010 | 48°F 1948 | 35% | 0% |
| Jul 9 | 87°F | 66°F | 102°F 1936 | 46°F 1963 | 35% | 0% |
| Jul 10 | 87°F | 66°F | 102°F 1936 | 45°F 1942 | 35% | 0% |
| Jul 11 | 87°F | 66°F | 102°F 1988 | 48°F 1957 | 35% | 0% |
| Jul 12 | 87°F | 66°F | 100°F 1988 | 45°F 1978 | 35% | 0% |
| Jul 13 | 87°F | 66°F | 97°F 1966 | 48°F 1939 | 35% | 0% |
| Jul 14 | 87°F | 66°F | 99°F 1966 | 46°F 1940 | 35% | 0% |
| Jul 15 | 87°F | 66°F | 101°F 1954 | 41°F 1940 | 35% | 0% |
| Jul 16 | 87°F | 66°F | 102°F 1995 | 42°F 1946 | 36% | 0% |
| Jul 17 | 87°F | 66°F | 102°F 1988 | 44°F 1946 | 36% | 0% |
| Jul 18 | 87°F | 66°F | 102°F 1988 | 45°F 1934 | 36% | 0% |
| Jul 19 | 87°F | 66°F | 101°F 2012 | 48°F 1939 | 36% | 0% |
| Jul 20 | 87°F | 66°F | 102°F 1999 | 50°F 1939 | 36% | 0% |
| Jul 21 | 87°F | 66°F | 100°F 1980 | 48°F 1941 | 37% | 0% |
| Jul 22 | 86°F | 66°F | 102°F 1991 | 45°F 1944 | 37% | 0% |
| Jul 23 | 86°F | 66°F | 103°F 2011 | 41°F 1939 | 37% | 0% |
| Jul 24 | 86°F | 66°F | 101°F 2022 | 48°F 1947 | 37% | 0% |
| Jul 25 | 86°F | 66°F | 100°F 2022 | 45°F 1932 | 37% | 0% |
| Jul 26 | 86°F | 66°F | 100°F 1944 | 46°F 1976 | 37% | 0% |
| Jul 27 | 86°F | 66°F | 98°F 1944 | 46°F 1977 | 38% | 0% |
| Jul 28 | 86°F | 66°F | 101°F 1944 | 46°F 1962 | 38% | 0% |
| Jul 29 | 86°F | 66°F | 99°F 1999 | 47°F 1937 | 38% | 0% |
| Jul 30 | 86°F | 66°F | 100°F 1944 | 50°F 1935 | 37% | 0% |
| Jul 31 | 86°F | 66°F | 103°F 1954 | 43°F 1936 | 37% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- July 1
- sunrise 5:31 AM, sunset 8:34 PM
- July 31
- sunrise 5:54 AM, sunset 8:15 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00281335 (Canoe Brook), public domain. Records: NOAA GHCN-Daily, station USC00281335, 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.