Climateby Month

Columbus, OH weather in July

NOAA 1991-2020 normals and daily records · Columbus all year

July in Columbus: warm and often humid, with frequent rain. Highs 85°F, lows 65°F, about 11 wet days. This is the peak of the warm season in Columbus.

Normal high
85°F
Normal low
65°F
Wet days
11
4.7 in total
Muggy days
14
dew point 65°F+

How July changes from start to finish

Normal values at the start and end of July
July 1July 31
Normal high85°F85°F
Normal low65°F65°F
Chance of a wet day36%34%
Sunrise / sunset6:07 am / 9:04 pm6:29 am / 8:47 pm
Daylight15.0 h14.3 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).

A typical July day

  1. 6 am68°Fdew point 63°F
  2. 9 am75°Fdew point 64°F
  3. Noon81°Fdew point 63°F
  4. 3 pm83°Fdew point 63°F
  5. 6 pm82°Fdew point 63°F
  6. 9 pm76°Fdew point 64°F

NOAA hourly normals (local standard time) from Columbus Port Columbus Intl Airport (7 mi away); average wind 6 mph; clear or few clouds in 34% of daytime hours, mostly cloudy or overcast in 44%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F4 of 31
  • Hot dayshigh 90°F or more8 of 31
  • Muggy daysdaily mean dew point 65°F or more14 of 31
  • Wet daysat least 0.01 in of rain or melted snow11 of 31
  • Notable rainat least 0.10 in7 of 31
  • Freezing nightslow 32°F or below0 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

Average days per July, counted from daily records for each year 1991-2020.

Rain in July

Normal precipitation is 4.7 in; a dry July brings about 3.0 in and a wet one about 5.9 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.

How July varies from year to year

  • Warmest July, 1991-20202012: average high 91°F
  • Coolest July2009: average high 80°F
  • Wettest July1992: 12.4 in
  • Driest July2008: 1.6 in
  • Highest reading101°F (July 7, 2012)
  • Lowest reading50°F (July 4, 1996)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

July compared with June and August

JuneJulyAugust
Normal high82°F85°F84°F
Normal low62°F65°F64°F
Wet days121110
Comfortable days845
Daylight15.0 h14.7 h13.7 h

Highs change by +3°F from June and -1°F into August.

How Columbus ranks in July

  • Normal high226th warmest of 378 cities; 4th of 6 in Ohio
  • Wet days275th driest of 378
  • Comfortable days139th most of 340

What to pack for Columbus in July

  • Light, breathable clothing – highs near 85°F and about 14 muggy days
  • A rain jacket or umbrella – rain on about 11 days
  • Sunglasses and sunscreen – about 14.7 hours of daylight and highs near 85°F

Heating and cooling

July has 1 heating degree days and 323 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.

Questions

How hot is Columbus in July?

The normal high is 85°F and the normal low is 65°F. From 1991 to 2020 the hottest July reading was 101°F (most recently on July 7, 2012).

Does it rain a lot in Columbus in July?

About 11 days in July have at least 0.01 in of precipitation, and the normal total is 4.7 in. The wettest July in 1991-2020 was in 1992 (12.4 in); the driest was in 2008 (1.7 in).

Is July a good time to visit Columbus?

July ranks 7th of 12 months on our comfort score for Columbus (53 out of 100). It has about 4 comfortable days and about 8 days at 90°F or hotter. The best month is May.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Columbus Port Columbus Intl Airport (USW00014821), 6.6 mi ENE of the city center, 810 ft . NOAA normals and daily records, 1991-2020.
  • Cloud cover: Wright Patterson AFB (USW00013840), 56 mi W of the city center, 823 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Port Columbus International Airport (724280-14821), 6.8 mi ENE of the city center, 810 ft . Hourly observations, 1991-2020.