Charleston weather in July: Charleston, West Virginia: normal highs, lows, rain and records for July

Charleston in July has a normal high of 86°F and a normal low of 66°F, a daily mean of 76°F, holding near 86°F all month. Measurable precipitation falls on 13 days in a normal July, 5.38 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 30°C and low of 19°C, 137 mm of precipitation in July.

  • NOAA stationCharleston - West Virginia International Yeager Airport
  • Station IDUSW00013866
  • Location38.38°N 81.59°W
  • Elevation910 ft (277 m)
  • From the center3 miles
  • Population46,482
  1. Jan 44° 26°
  2. Feb 48° 29°
  3. Mar 57° 35°
  4. Apr 69° 45°
  5. May 76° 53°
  6. Jun 83° 62°
  7. Jul 86° 66°
  8. Aug 85° 64°
  9. Sep 80° 57°
  10. Oct 69° 45°
  11. Nov 57° 36°
  12. Dec 48° 30°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Charleston in July?

The normal high is 86°F and the normal low 66°F, for a daily mean of 75.8°F. July is 3.5°F warmer than June and 1.2°F warmer than August. July is the warmest month of the year in Charleston and the wettest. From one year to the next July's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Julys in three average between 74°F and 78°F.

Charleston in July, day by day: normal high and low

Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 40%).

Normal high and low on five days of July, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
July 186°F65°F40%27%
July 886°F65°F40%27%
July 1586°F66°F40%27%
July 2286°F66°F40%27%
July 3186°F66°F39%26%
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 7, coldest night July 1)
Charleston: NOAA 1991-2020 daily normals for each day of July
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
July 186°F65°F40%27%14 h 50 min
July 286°F65°F40%27%14 h 50 min
July 386°F65°F40%27%14 h 50 min
July 486°F65°F40%27%14 h 50 min
July 586°F65°F40%27%14 h 50 min
July 686°F65°F40%27%14 h 50 min
July 786°F65°F40%27%14 h 40 min
July 886°F65°F40%27%14 h 40 min
July 986°F66°F40%27%14 h 40 min
July 1086°F66°F40%27%14 h 40 min
July 1186°F66°F40%27%14 h 40 min
July 1286°F66°F40%27%14 h 40 min
July 1386°F66°F40%27%14 h 40 min
July 1486°F66°F40%27%14 h 40 min
July 1586°F66°F40%27%14 h 40 min
July 1686°F66°F40%27%14 h 40 min
July 1786°F66°F40%27%14 h 30 min
July 1886°F66°F40%27%14 h 30 min
July 1986°F66°F40%27%14 h 30 min
July 2086°F66°F40%27%14 h 30 min
July 2186°F66°F40%27%14 h 30 min
July 2286°F66°F40%27%14 h 30 min
July 2386°F66°F40%27%14 h 30 min
July 2486°F66°F40%27%14 h 20 min
July 2586°F66°F40%27%14 h 20 min
July 2686°F66°F40%26%14 h 20 min
July 2786°F66°F40%26%14 h 20 min
July 2886°F66°F39%26%14 h 20 min
July 2986°F66°F39%26%14 h 20 min
July 3086°F66°F39%26%14 h 10 min
July 3186°F66°F39%26%14 h 10 min
Normal high
86°FJuly average
Normal low
66°FJuly average
Precipitation
5.38 inmonth total
Days with precipitation
130.01 inch or more
Days at 90°F or more
8
Daylight
14 h 50 min to 14 h 10 minJuly 1 to July 31
Days at 70°F or more
31
Days at 80°F or more
27
Sunshine
76%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USW00013866; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Charleston in July?

On a given July day the chance of 0.01 inch or more is 40% on average, highest around July 1 (40%). In all, 5.38 in falls on 13 days of a normal July, 2 of them with an inch or more.

In a normal July in Charleston, 8 days reach 90°F.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013866.

How humid and windy is Charleston in July?

At 3 p.m. the normal temperature is 83°F with 55% relative humidity and a dew point of 65°F; at 6 a.m. it is 66°F with 95% humidity. The wind averages 2.9 mph, most often from the west-southwest in the afternoon.

A normal July day at the station, hour by hour (local standard time)
TimeTemperatureDew pointHumidityWindClear or few clouds
6 a.m.66°F65°F95%1.4 mph–
9 a.m.73°F67°F79%3.1 mph38%
noon81°F66°F60%5.0 mph23%
3 p.m.83°F65°F55%5.4 mph19%
6 p.m.81°F66°F60%4.7 mph37%
9 p.m.73°F67°F83%1.6 mph57%

Source: NOAA NCEI 1991-2020 hourly normals, station USW00013866. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).

What are the records for July in Charleston?

The warmest July temperature on Charleston's official record (since 1892) is 108°F, on July 4, 1931; the coldest is 46°F, on July 10, 1961. The wettest July brought 13.54 in (1961).

The July mean against the 1991-2020 normal of 75.8°F: 2021 75.3°F (−0.5), 2022 76.2°F (+0.4), 2023 75.8°F (at normal), 2024 78.4°F (+2.6), 2025 79.3°F (+3.5), 2026 76.8°F (+1.0). 4 of 6 ran warmer than normal.

Charleston: July in recent years against the 1991-2020 normal
JulyMeanAgainst normalPrecip.
202175.3°F−0.5°F3.11 in
202276.2°F+0.4°F9.95 in
202375.8°Fat normal4.27 in
202478.4°F+2.6°F1.70 in
202579.3°F+3.5°F7.46 in
202676.8°F+1.0°F4.16 in

Source: records: ACIS, NWS threaded record CRWthr; recent months: ACIS, station USW00013866. Records and recent months use complete months only.

How does July in Charleston compare across West Virginia?

Across the 63 places PlainClimate covers in West Virginia, July normal highs run from 75°F in Davis to 89°F in Keyser; Charleston's is 86°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places