Highlands Ranch, CO weather in August
Highlands Ranch is warm in August, with some rain: highs average 83°F and nights drop to about 52°F. There are about 10 days with rain. This is the peak of the warm season in Highlands Ranch. A good month for most outdoor plans.
- Normal high
- 83°F
- Normal low
- 52°F
- Wet days
- 10
- 2.0 in total
- Muggy days
- 0
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 84°F | 80°F |
| Normal low | 55°F | 49°F |
| Chance of a wet day | 32% | 27% |
| Sunrise / sunset | 5:59 am / 8:12 pm | 6:27 am / 7:33 pm |
| Daylight | 14.2 h | 13.1 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
- 6 am61°Fdew point 48°F
- 9 am73°Fdew point 47°F
- Noon81°Fdew point 45°F
- 3 pm81°Fdew point 44°F
- 6 pm76°Fdew point 47°F
- 9 pm68°Fdew point 49°F
NOAA hourly normals (local standard time) from Denver Centennial Airport (7 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°F8 of 31
- Hot dayshigh 90°F or more5 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 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 2.0 in; a dry August brings about 1.1 in and a wet one about 2.9 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 89°F
- Coolest August2014: average high 79°F
- Wettest August2015: 4.1 in
- Driest August2020: 0.4 in
- Highest reading99°F (August 18, 2002)
- Lowest reading32°F (August 12, 1999)
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
| July | August | September | |
|---|---|---|---|
| Normal high | 84°F | 83°F | 76°F |
| Normal low | 54°F | 52°F | 43°F |
| Wet days | 9 | 10 | 7 |
| Comfortable days | 7 | 8 | 14 |
| Daylight | 14.6 h | 13.7 h | 12.4 h |
Highs change by -1°F from July and -7°F into September.
Nearby alternatives in August
- Warmer: Denver, CO13 mi · high 88°F · 9 wet days
- Drier: Casper, WY239 mi · high 87°F · 6 wet days
- Cooler: Breckenridge, CO57 mi · high 68°F · 14 wet days
How Highlands Ranch ranks in August
- Normal high261st warmest of 378 cities; 11th of 17 in Colorado
- Wet days240th driest of 378
- Comfortable days86th most of 341
What to pack for Highlands Ranch in August
- Layers – afternoons near 83°F but nights near 52°F
- A rain jacket or umbrella – rain on about 10 days
Heating and cooling
August has 36 heating degree days and 112 cooling degree days (base 65°F), 2% of the year's total heating and cooling demand.
Questions
How hot is Highlands Ranch in August?
The normal high is 83°F and the normal low is 52°F. From 1991 to 2020 the hottest August reading was 99°F (August 18, 2002).
Does it rain a lot in Highlands Ranch in August?
About 10 days in August have at least 0.01 in of precipitation, and the normal total is 2.0 in. The wettest August in 1991-2020 was in 2015 (4.1 in); the driest was in 2020 (0.4 in).
Is August a good time to visit Highlands Ranch?
August ranks 6th of 12 months on our comfort score for Highlands Ranch (60 out of 100). It has about 8 comfortable days and about 5 days at 90°F or hotter. The best months are May and June.
Where the numbers come from
- Temperature: Strontia Springs Dam (USC00058022), 12 mi SW of the city center, 5,840 ft (145 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Rain, snowfall and snow depth: Kassler (USC00054452), 8.0 mi WSW of the city center, 5,587 ft (108 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Frost dates and humidity and wind by hour: Denver Centennial Airport (USW00093067), 6.5 mi E of the city center, 5,883 ft (188 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Cloud cover: Aurora Buckley Fld ANGB (USW00023036), 16 mi NE of the city center, 5,663 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Buckley Air Force Base (724695-23036), 16 mi NE of the city center, 5,663 ft . Hourly observations, 1991-2020.