Climateby Month

Centennial, CO weather in August

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

August in Centennial: warm, with frequent rain. Highs 85°F, lows 57°F, about 10 wet days. This is the peak of the warm season in Centennial.

Normal high
85°F
Normal low
57°F
Wet days
10
2.3 in total
Muggy days
0
dew point 65°F+

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high87°F82°F
Normal low59°F54°F
Chance of a wet day33%27%
Sunrise / sunset5:59 am / 8:12 pm6:26 am / 7:32 pm
Daylight14.2 h13.1 h

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

A typical August day

  1. 6 am61°Fdew point 48°F
  2. 9 am73°Fdew point 47°F
  3. Noon81°Fdew point 45°F
  4. 3 pm81°Fdew point 44°F
  5. 6 pm76°Fdew point 47°F
  6. 9 pm68°Fdew point 49°F

NOAA hourly normals (local standard time) from Denver Centennial Airport (2 mi away); average wind 8 mph; clear or few clouds in 38% of daytime hours, mostly cloudy or overcast in 38%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F6 of 31
  • Hot dayshigh 90°F or more9 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow10 of 31
  • Notable rainat least 0.10 in4 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 2.3 in; a dry August brings about 1.2 in and a wet one about 3.2 in (25th and 75th percentiles). About 1 day brings half an inch or more.

How August varies from year to year

  • Warmest August, 1991-20202020: average high 91°F
  • Coolest August2004: average high 80°F
  • Wettest August2004: 5.4 in
  • Driest August2020: 0.2 in
  • Highest reading100°F (August 1, 2008)
  • Lowest reading38°F (August 26, 2014)

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 high87°F85°F77°F
Normal low59°F57°F49°F
Wet days10106
Comfortable days4612
Daylight14.6 h13.7 h12.4 h

Highs change by -2°F from July and -8°F into September.

Nearby alternatives in August

How Centennial ranks in August

  • Normal high219th warmest of 378 cities; 8th of 17 in Colorado
  • Wet days256th driest of 378
  • Comfortable days111th most of 341

What to pack for Centennial in August

  • Light, breathable clothing – highs near 85°F
  • Layers – afternoons near 85°F but nights near 57°F
  • A rain jacket or umbrella – rain on about 10 days

Heating and cooling

August has 14 heating degree days and 192 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.

Questions

How hot is Centennial in August?

The normal high is 85°F and the normal low is 57°F. From 1991 to 2020 the hottest August reading was 100°F (August 1, 2008).

Does it rain a lot in Centennial in August?

About 10 days in August have at least 0.01 in of precipitation, and the normal total is 2.3 in. The wettest August in 1991-2020 was in 2004 (5.4 in); the driest was in 2020 (0.2 in).

Is August a good time to visit Centennial?

August ranks 7th of 12 months on our comfort score for Centennial (56 out of 100). It has about 6 comfortable days and about 9 days at 90°F or hotter. The best month is May.

Where the numbers come from

  • Temperature, rain, frost dates and humidity and wind by hour: Denver Centennial Airport (USW00093067), 1.6 mi ESE of the city center, 5,883 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Kassler (USC00054452), 13 mi WSW of the city center, 5,587 ft (254 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Cloud cover: Aurora Buckley Fld ANGB (USW00023036), 12 mi NE of the city center, 5,663 ft (178 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Buckley Air Force Base (724695-23036), 12 mi NE of the city center, 5,663 ft (178 ft lower than the city). Hourly observations, 1991-2020.