Climate in Denver — Annual Weather Overview
Denver has a semi arid climate — warm and dry with low but seasonal rainfall. The hottest month is July (average high 32.0°C) and the coolest is February (3.9°C). The seasons are strongly defined — a 28.1°C swing between July highs and February lows. Annual rainfall is modest at around 407mm, with May the wettest month (90.8mm) and November the driest (11.6mm). Average daily sunshine is 10.2 hours.
**Spring (March, April, May):** average highs 15.8°C, 177mm rain. **Summer (June, July, August):** average highs 30.5°C, 112mm rain. **Autumn (September, October, November):** average highs 20.1°C, 53mm rain. **Winter (December, January, February):** average highs 5.7°C, 64mm rain.
Denver — Monthly Temperatures
Denver — Monthly Rainfall
✅ Best months to visit
All year
ℹ️ No months to avoid
Weather in Denver stays reasonable all year.
Denver weather by month
| Month | High | Low | Rain | Sun/day | Rainy days | Rating |
|---|---|---|---|---|---|---|
| January | 5.2°C | -8.5°C | 18.4mm | 7.7h | 4 | 10/10 |
| February | 3.9°C | -11.5°C | 26.9mm | 8.8h | 7 | 8/10 |
| March | 10.2°C | -5.0°C | 49.6mm | 9.5h | 8 | 10/10 |
| April | 15.8°C | -0.6°C | 36.8mm | 10.8h | 7 | 10/10 |
| May | 21.5°C | 6.4°C | 90.8mm | 11.2h | 10 | 10/10 |
| June | 28.2°C | 12.2°C | 54.6mm | 12.2h | 8 | 10/10 |
| July | 32.0°C | 16.3°C | 28.7mm | 12.8h | 6 | 10/10 |
| August | 31.4°C | 15.6°C | 28.4mm | 12.3h | 5 | 10/10 |
| September | 28.0°C | 10.5°C | 24.0mm | 11.0h | 5 | 10/10 |
| October | 19.4°C | 3.0°C | 17.7mm | 9.7h | 3 | 10/10 |
| November | 12.8°C | -2.3°C | 11.6mm | 8.6h | 4 | 10/10 |
| December | 8.1°C | -5.8°C | 19.1mm | 7.7h | 4 | 10/10 |
For the full verdict on when to go, see the best time to visit Denver. Seasonal breakdowns: spring, summer, autumn and winter.
Sorted on weather — now sort the packing
Our sister site has a ready-made checklist for this exact trip.
Denver packing list →More about United States — currency, language and key facts at 247CountryInfo →
Frequently Asked Questions
What type of climate does Denver have?
Denver has a semi arid climate — warm and dry with low but seasonal rainfall. Average highs range from 3.9°C in February to 32.0°C in July.
What is the hottest month in Denver?
July is the hottest month in Denver, with average highs of 32.0°C and lows of 16.3°C.
What is the coldest month in Denver?
February is the coolest month, with average highs of 3.9°C and lows of -11.5°C.
What is the wettest month in Denver?
May is the wettest month, averaging 90.8mm of rainfall over around 10 rainy days.
How much rain does Denver get per year?
Denver receives around 407mm of rain per year. The driest month is November (11.6mm).
When is the best time to visit Denver?
The best time to visit Denver is All year. See the full month-by-month guide →
Compare Hertz, Avis, Budget, Sixt and 800+ rental companies — book now, pay at pickup.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youAs an Amazon Associate we earn from qualifying purchases. Links below are affiliate links.
For the packing side of things, our sister site has a ready-made checklist: Denver packing list at 247PackingList. For currency, language and country facts see the United States guide at 247CountryInfo.
Trip essentials for Denver
UPF 50+ sun protection
Denver's strong UV calls for proper coverage — BloqUV blocks 98%.
Get BloqUV →Sunglasses for sunny trips
Heading somewhere this sunny? Otra's trend-led frames are built for travel.
Get Otra Eyewear →Check clothing sizes in United States at 247Sizing before you shop for the trip.
More Denver travel essentials
Book UK airport parking
Flying out to Denver from the UK? Compare Gatwick, Luton, Birmingham, Glasgow and Newcastle.
Compare Airport Parking →Keep your indoor air clean
HEPA filtration for wildfire smoke, seasonal haze and everyday pollution — evergreen best-seller.
Shop PuroAir →Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.