Climate averages 1991–2020
Denver weather
in March.
A cool, moderately wet month: the 8th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Denver: daytime highs average 10.8°C and nights cool to about -4.7°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 47 mm of rain on roughly 8 days, which makes March a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 55 min on an average March day.
The nearest other city in this atlas is Lakewood (9 km away). In March its highs average 10.6°C, about as warm as Denver, with 47 mm of rain.
Among the 498 cities listed in the United States, Denver ranks joint 335th of 498 for the warmest March highs and joint 77th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; Denver is 4.1°C cooler than that mean.
From March to April, average highs rise by 3.6°C to 14.4°C, and monthly rainfall rises from 47 mm to 70 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Denver climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.8°C-9.4°C | -9.4°C | 22 | 5.2 | 9.710 h |
| February | 6.0°C-8.7°C | -8.7°C | 23 | 5.9 | 10.711 h |
| March, selected | 10.8°C-4.7°C | -4.7°C | 47 | 7.6 | 11.912 h |
| April | 14.4°C-0.5°C | -0.5°C | 70 | 9.9 | 13.213 h |
| May | 19.7°C5.2°C | 5.2°C | 82 | 11.0 | 14.314 h |
| June | 26.2°C10.9°C | 10.9°C | 52 | 8.3 | 14.915 h |
| July | 29.4°C14.6°C | 14.6°C | 41 | 7.2 | 14.715 h |
| August | 28.2°C13.9°C | 13.9°C | 39 | 6.4 | 13.714 h |
| September | 24.3°C9.5°C | 9.5°C | 36 | 5.8 | 12.512 h |
| October | 17.0°C2.4°C | 2.4°C | 40 | 6.1 | 11.211 h |
| November | 9.6°C-4.8°C | -4.8°C | 30 | 5.9 | 10.010 h |
| December | 4.4°C-9.6°C | -9.6°C | 21 | 4.9 | 9.49 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Lakewood in MarchUnited States · 9 kmHigh 10.6°C · Low -4.7°C · 47 mm rain
- Arvada in MarchUnited States · 11 kmHigh 10.7°C · Low -5.0°C · 47 mm rain
- Westminster (Colorado), United States in MarchUnited States · 12 kmHigh 10.7°C · Low -4.9°C · 47 mm rain
- Aurora (Colorado), United States in MarchUnited States · 13 kmHigh 11.7°C · Low -3.0°C · 35 mm rain
- Thornton in MarchUnited States · 14 kmHigh 10.7°C · Low -4.9°C · 47 mm rain
- Centennial in MarchUnited States · 20 kmHigh 10.2°C · Low -5.2°C · 51 mm rain
- Highlands Ranch in MarchUnited States · 21 kmHigh 10.1°C · Low -5.6°C · 51 mm rain
- Boulder in MarchUnited States · 39 kmHigh 10.0°C · Low -4.5°C · 50 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Denver) is explained once on the Denver year overview and on the Sources, method and limits page.
Lakewood, Thornton and Westminster (Colorado), United States lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.