CO · climate averages
Denver Weather by Month
These are climate averages, not a forecast. Station Denver-Stapleton (USW00023062), 4.5 miles from downtown, elevation 5286 ft.
Denver's warmest month is July (avg high 90.2°F), coldest is January (avg low 17.6°F) and wettest is May (2.29 in), per NOAA 1991–2020 climate normals.
- Warmest high July 90.2°F
- Coldest low January 17.6°F
- Wettest month May 2.29 in
- Year of rain 12 months 15.36 in
Monthly Averages
Denver's 12 monthly precipitation normals add up to 15.36 inches a year.
January is the driest month, with a precipitation normal of 0.46 inches.
January, February, March, April, May, September, October, November and December are the months with a snowfall normal above 0.1 inch, and they sum to 49.0 inches.
Denver averages 84.4 days a year with at least 0.01 inch of precipitation.
| Month | Avg high | Avg low | Precipitation | Days ≥ 0.01 in | Snow |
|---|---|---|---|---|---|
| January | 46.5°F | 17.6°F | 0.46 in | 5.1 | 6.4 in |
| February | 47.5°F | 19.3°F | 0.53 in | 5.5 | 7.6 in |
| March | 56.4°F | 27.1°F | 1.12 in | 6.5 | 8.8 in |
| April | 62.5°F | 33.7°F | 1.67 in | 8.3 | 6.2 in |
| May | 71.7°F | 43.4°F | 2.29 in | 11.0 | 1.4 in |
| June | 84.1°F | 52.9°F | 1.68 in | 8.1 | 0.0 in |
| July | 90.2°F | 59.3°F | 2.12 in | 9.0 | 0.0 in |
| August | 87.9°F | 57.2°F | 1.83 in | 8.8 | 0.0 in |
| September | 80.1°F | 48.2°F | 1.51 in | 6.4 | 0.8 in |
| October | 66.7°F | 35.7°F | 0.98 in | 5.4 | 3.9 in |
| November | 54.8°F | 25.5°F | 0.70 in | 5.6 | 7.3 in |
| December | 45.9°F | 17.7°F | 0.47 in | 4.7 | 6.6 in |
Warmest, Coldest and Wettest Months
The warmest month is July, with an average high of 90.2°F.
The coldest month is January, with an average low of 17.6°F.
The wettest month is May, at 2.29 inches of precipitation over about 11.0 days.
July is the only month in Denver with an average high of at least 90°F.
From the coldest average low to the warmest average high, Denver spans 72.6°F.
In July, the average high in Denver is 30.9°F above the average low.
Best Months to Visit Denver for Weather
October meets the weather rule on this page: an average high from 65 to 85°F and precipitation below 1.28 inches.
The rule keeps a month when the average high is from 65 to 85°F and precipitation is below 1.28 inches, the mean of the twelve monthly precipitation normals.
- October · 66.7°F
About This Data
Source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991–2020. Station: DENVER-STAPLETON (USW00023062), 4.5 mi from downtown, elevation 5286 ft. Climate normals are 30-year averages, not forecasts. MonthSky is not affiliated with NOAA.
Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/wck8-er13. Accessed 2026-10-21.
U.S. Government work.
NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
These pages are built automatically from public NOAA data.
U.S. Monthly Climate Normals (1991-2020) dataset
NCEI dataset landing page for the monthly normals
FAQ
What is the hottest month in Denver?
July is the warmest, with an average high of 90.2°F.
What is the wettest month in Denver?
May is the wettest, at 2.29 inches over about 11.0 days.
How many rainy days does Denver get a year?
The monthly counts of days with at least 0.01 inch of precipitation add up to 84.4 days.
When is the best time to visit Denver for weather?
October meets the rule used on this page: average high from 65 to 85°F and precipitation below the monthly mean of 1.28 inches.