United States · 1991–2020 normal
Boulder in
April.
Typical April weather in Boulder: 12.8°C by day, -2.7°C at night, 18 mm of rain over 4.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high12.8°C
Typical low-2.7°C
Rain18 mm
Wet days4.6
Comfort score 30 this month (September leads the year at 73). Daylight is calculated as 13 h 29 from latitude 46.24°.
Event window
Frost-level nights in April
The measured night-time normal is -2.7°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5641473
- NOAA station
- USC00241008 · BOULDER
- Station distance
- 0.8 km from the place centre
- Coverage
- Strong coverage · 29 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.