Williamstown Weather in July
Average highs run from 80°F on July 1 to 81°F on July 31, and lows from 54°F to 55°F. Normal precipitation for the month is 5.04 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
- 81°F
- Average low
- 55°F
- Precipitation
- 5.04 in
- Record high
- 97°FJul 20, 1977
- Record low
- 35°FJul 7, 1965
- Chance of a freeze
- 0%
- Days of 90°F or more
- 1.8
- Daylight
- 15 h 26 min to 14 h 38 min
- Cloud cover
- 63%
- Humidity
- 83%
- Dew point
- 60°F
- Wind
- 3.6 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 | 80°F | 54°F | 92°F 2018 | 41°F 1965 | 40% | 0% |
| Jul 2 | 80°F | 54°F | 90°F 1949 | 38°F 1992 | 40% | 0% |
| Jul 3 | 80°F | 55°F | 91°F 1949 | 36°F 1962 | 40% | 0% |
| Jul 4 | 80°F | 55°F | 92°F 1983 | 39°F 1962 | 40% | 0% |
| Jul 5 | 81°F | 55°F | 91°F 2018 | 42°F 1979 | 39% | 0% |
| Jul 6 | 81°F | 55°F | 91°F 1993 | 38°F 1962 | 39% | 0% |
| Jul 7 | 81°F | 55°F | 92°F 2010 | 35°F 1965 | 39% | 0% |
| Jul 8 | 81°F | 55°F | 95°F 1988 | 37°F 1969 | 39% | 0% |
| Jul 9 | 81°F | 55°F | 94°F 1988 | 42°F 1969 | 39% | 0% |
| Jul 10 | 81°F | 55°F | 92°F 1955 | 41°F 1954 | 38% | 0% |
| Jul 11 | 81°F | 55°F | 89°F 1948 | 44°F 1953 | 38% | 0% |
| Jul 12 | 81°F | 55°F | 91°F 1987 | 43°F 1985 | 38% | 0% |
| Jul 13 | 81°F | 55°F | 89°F 1995 | 43°F 1955 | 38% | 0% |
| Jul 14 | 81°F | 55°F | 94°F 1952 | 47°F 1980 | 38% | 0% |
| Jul 15 | 81°F | 55°F | 94°F 1955 | 42°F 1950 | 38% | 0% |
| Jul 16 | 81°F | 55°F | 92°F 1969 | 42°F 1966 | 37% | 0% |
| Jul 17 | 81°F | 55°F | 93°F 1982 | 43°F 1966 | 37% | 0% |
| Jul 18 | 81°F | 55°F | 96°F 1953 | 43°F 1956 | 37% | 0% |
| Jul 19 | 81°F | 55°F | 92°F 1991 | 43°F 2018 | 37% | 0% |
| Jul 20 | 81°F | 55°F | 97°F 1977 | 42°F 2000 | 37% | 0% |
| Jul 21 | 81°F | 55°F | 93°F 1994 | 39°F 1950 | 37% | 0% |
| Jul 22 | 81°F | 55°F | 95°F 1955 | 42°F 1965 | 37% | 0% |
| Jul 23 | 81°F | 55°F | 92°F 1952 | 41°F 1981 | 37% | 0% |
| Jul 24 | 81°F | 55°F | 89°F 1987 | 42°F 1985 | 37% | 0% |
| Jul 25 | 81°F | 55°F | 90°F 1989 | 41°F 1953 | 37% | 0% |
| Jul 26 | 81°F | 55°F | 90°F 1989 | 44°F 1976 | 36% | 0% |
| Jul 27 | 81°F | 55°F | 92°F 1949 | 40°F 2001 | 36% | 0% |
| Jul 28 | 81°F | 55°F | 92°F 1949 | 39°F 2001 | 36% | 0% |
| Jul 29 | 81°F | 55°F | 92°F 1949 | 41°F 1987 | 36% | 0% |
| Jul 30 | 81°F | 55°F | 92°F 1959 | 39°F 1952 | 36% | 0% |
| Jul 31 | 81°F | 55°F | 90°F 1955 | 42°F 1964 | 36% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- July 1
- sunrise 5:11 AM, sunset 8:37 PM
- July 31
- sunrise 5:37 AM, sunset 8:15 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00435733 (Northfield), public domain. Records: NOAA GHCN-Daily, station USW00094705, 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.