Climateby Month

Carmel, IN weather in August

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

August in Carmel: warm and often humid, with some rain. Highs 82°F, lows 62°F, about 7 wet days. This is the peak of the warm season in Carmel.

Normal high
82°F
Normal low
62°F
Wet days
7
2.9 in total
Muggy days
14
dew point 65°F+

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high82°F81°F
Normal low63°F60°F
Chance of a wet day24%22%
Sunrise / sunset6:43 am / 8:58 pm7:11 am / 8:18 pm
Daylight14.3 h13.1 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 August day

  1. 6 am66°Fdew point 63°F
  2. 9 am73°Fdew point 64°F
  3. Noon80°Fdew point 64°F
  4. 3 pm82°Fdew point 63°F
  5. 6 pm80°Fdew point 63°F
  6. 9 pm74°Fdew point 64°F

NOAA hourly normals (local standard time) from Indianapolis (21 mi away); average wind 7 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F5 of 31
  • Hot dayshigh 90°F or more5 of 31
  • Muggy daysdaily mean dew point 65°F or more14 of 31
  • Wet daysat least 0.01 in of rain or melted snow7 of 31
  • Notable rainat least 0.10 in5 of 31
  • Freezing nightslow 32°F or below0 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

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

Rain in August

Normal precipitation is 2.9 in; a dry August brings about 1.8 in and a wet one about 4.3 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.

How August varies from year to year

  • Warmest August, 1991-20201995: average high 90°F
  • Coolest August1992: average high 79°F
  • Wettest August2016: 5.8 in
  • Driest August1996: 0.1 in
  • Highest reading97°F (August 2, 1991)
  • Lowest reading44°F (August 12, 2004)

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

August compared with July and September

JulyAugustSeptember
Normal high83°F82°F77°F
Normal low64°F62°F55°F
Wet days977
Comfortable days4513
Daylight14.7 h13.7 h12.4 h

Highs change by -1°F from July and -5°F into September.

Nearby alternatives in August

How Carmel ranks in August

  • Normal high282nd warmest of 378 cities; 4th of 6 in Indiana
  • Wet days136th driest of 378
  • Comfortable days124th most of 341

Heating and cooling

August has 8 heating degree days and 221 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.

Questions

How hot is Carmel in August?

The normal high is 82°F and the normal low is 62°F. From 1991 to 2020 the hottest August reading was 97°F (August 2, 1991).

Does it rain a lot in Carmel in August?

About 7 days in August have at least 0.01 in of precipitation, and the normal total is 2.9 in. The wettest August in 1991-2020 was in 2016 (5.8 in); the driest was in 1996 (0.1 in).

Is August a good time to visit Carmel?

August ranks 6th of 12 months on our comfort score for Carmel (57 out of 100). It has about 5 comfortable days and about 5 days at 90°F or hotter. The best months are April and May.

Where the numbers come from

  • Temperature, rain and snow depth: Whitestown (USC00129557), 13 mi W of the city center, 941 ft (88 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Snowfall and humidity and wind by hour: Indianapolis (USW00093819), 21 mi SSW of the city center, 790 ft (63 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Frost dates: Carmel 3 E (USC00121303), 3.4 mi ESE of the city center, 752 ft (101 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Indianapolis International Airport (724380-93819), 20 mi SSW of the city center, 792 ft (61 ft lower than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).