Boulder
United States · 14 June 2017
Average
11.6°C
low 4.5°C · high 18.5°C
Rainfall
0.8mm
dry day
Wind
3.3m/s
daily average
Humidity
57.5%
daily average
Cloud
44%
cover
Pressure
1012hPa
daily average
The temperature ranged from 4.5°C around 06:00 to 18.5°C around 17:00. Rain was recorded across 3 hours, from around 00:00 to 02:00 (0.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
37th percentile
Low temperature
28th percentile
Rainfall
47th percentile
Wind
93th percentile
A percentile of 100 means this was the hottest/wettest/windiest of the comparable days on file; 50 is right in the middle. This window's average temperature was 12.9°C, versus 11.6°C on this specific day.
Sun & daylight
Sunrise
05:35
Sunset
21:21
Day length
15h 46m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Denver.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 06:00 | 7°C | 4°C | 0.37 | 2.7 | W | 89 | 1012 |
| 01:00 | 07:00 | 6.6°C | 3.6°C | 0.21 | 2.6 | W | 89 | 1013 |
| 02:00 | 08:00 | 6.1°C | 3.1°C | 0.19 | 2.5 | W | 90 | 1013 |
| 03:00 | 09:00 | 4.6°C | 1.6°C | 0.04 | 2.3 | WSW | 95 | 1014 |
| 04:00 | 10:00 | 5.5°C | 2.6°C | 0.02 | 2.2 | WSW | 88 | 1013 |
| 05:00 | 11:00 | 5.3°C | 2.3°C | 0 | 2.3 | WSW | 90 | 1013 |
| 06:00 | 12:00 | 4.5°C | 1.5°C | 0 | 2.2 | WSW | 91 | 1013 |
| 07:00 | 13:00 | 5.5°C | 2.8°C | 0 | 2.1 | WSW | 93 | 1013 |
| 08:00 | 14:00 | 7.6°C | 5.1°C | 0 | 2.1 | WSW | 86 | 1014 |
| 09:00 | 15:00 | 10.5°C | 6.7°C | 0 | 3.1 | WSW | 57 | 1013 |
| 10:00 | 16:00 | 12.8°C | 7.9°C | 0 | 4.7 | WSW | 48 | 1013 |
| 11:00 | 17:00 | 14.3°C | 8.7°C | 0 | 5 | W | 36 | 1012 |
| 12:00 | 18:00 | 15.2°C | 9.7°C | 0 | 4.8 | W | 32 | 1012 |
| 13:00 | 19:00 | 16.1°C | 10.5°C | 0 | 5.1 | W | 31 | 1011 |
| 14:00 | 20:00 | 16.6°C | 11°C | 0 | 4.9 | W | 29 | 1011 |
| 15:00 | 21:00 | 17.8°C | 12.1°C | 0 | 5 | W | 28 | 1010 |
| 16:00 | 22:00 | 18.1°C | 12.5°C | 0 | 4.9 | WNW | 27 | 1010 |
| 17:00 | 23:00 | 18.5°C | 13.1°C | 0 | 4.8 | WNW | 28 | 1010 |
| 18:00 | 00:00 | 18.3°C | 13.3°C | 0 | 4.4 | WNW | 30 | 1010 |
| 19:00 | 01:00 | 17.5°C | 13.3°C | 0 | 3.4 | NW | 33 | 1011 |
| 20:00 | 02:00 | 16.2°C | 12.7°C | 0 | 2.7 | NW | 39 | 1012 |
| 21:00 | 03:00 | 12.1°C | 8.8°C | 0 | 2.3 | NW | 49 | 1012 |
| 22:00 | 04:00 | 11.4°C | 8.2°C | 0 | 2 | WNW | 48 | 1014 |
| 23:00 | 05:00 | 10.2°C | 7°C | 0 | 2 | WNW | 53 | 1014 |
Nearby cities
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Data source & coverage — ERA5 reanalysis, 2016–2025 (10 years)details
- Source
- ERA5 reanalysis, accessed via the Copernicus Climate Change Service (C3S) Climate Data Store
- Data type
- Reanalysis — a physically consistent reconstruction combining a forecast model with historical observations, not a live station reading or a forecast
- Coverage
- 2016–2025 (10 years) for United States
- Location
- Boulder — 46.250°, -112.000°, ERA5 grid cell center, 9.4 km from requested point
- Time zone
- America/Denver
- What's shown here
- The hourly and daily record for 14 June 2017 specifically — not a monthly average. See the Boulder climate overview for typical conditions.
- Spatial resolution
- 0.25° (~25 km) distributed grid — ERA5's native model resolution is finer; this is the publicly distributed regridded product
- Version / refreshed
- Methodology v2026.07 · data last refreshed December 31, 2025
- Limitations
- A model reconstruction, not a station observation — hyper-local extremes (a single storm cell, an urban heat pocket) can differ from a nearby gauge. See the full methodology.
- Attribution
- Generated using Copernicus Climate Change Service information
Cite this data
PastClimate (2026-07-20). Historical climate data for Boulder, United States (46.25°N, 112.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Boulder, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Boulder, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Boulder, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-20},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.