Home / Blackhawk / 28 May 2017
Blackhawk
United States · 28 May 2017
Average
16.2°C
low 11.8°C · high 23°C
Rainfall
0.5mm
dry day
Wind
6.1m/s
daily average
Humidity
40.6%
daily average
Cloud
12%
cover
Pressure
1015hPa
daily average
The temperature ranged from 11.8°C around 04:00 to 23°C around 15:00. Rain was recorded across 2 hours, from around 16:00 to 17:00 (0.5mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
59th percentile
Low temperature
73th percentile
Rainfall
42th percentile
Wind
96th 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 15.2°C, versus 16.2°C on this specific day.
Sun & daylight
Sunrise
05:14
Sunset
20:26
Day length
15h 12m
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 | 12.5°C | 7.8°C | 0 | 4.9 | W | 57 | 1015 |
| 01:00 | 07:00 | 11.9°C | 7.4°C | 0 | 4.5 | W | 58 | 1015 |
| 02:00 | 08:00 | 12.2°C | 7.9°C | 0 | 4.3 | W | 58 | 1015 |
| 03:00 | 09:00 | 12.1°C | 7.5°C | 0 | 4.5 | W | 54 | 1014 |
| 04:00 | 10:00 | 11.8°C | 6.4°C | 0 | 5.8 | WNW | 57 | 1014 |
| 05:00 | 11:00 | 12.2°C | 6.7°C | 0 | 5.8 | WNW | 55 | 1015 |
| 06:00 | 12:00 | 13°C | 7.6°C | 0 | 5.6 | WNW | 52 | 1015 |
| 07:00 | 13:00 | 12.9°C | 7.6°C | 0 | 5.6 | NW | 53 | 1016 |
| 08:00 | 14:00 | 14.8°C | 8.7°C | 0 | 6.3 | NW | 44 | 1017 |
| 09:00 | 15:00 | 18.5°C | 12.4°C | 0 | 6.3 | NNW | 33 | 1017 |
| 10:00 | 16:00 | 19.3°C | 13.1°C | 0 | 6.2 | NNW | 30 | 1017 |
| 11:00 | 17:00 | 20.6°C | 14.4°C | 0 | 6 | NNW | 26 | 1017 |
| 12:00 | 18:00 | 21.1°C | 15°C | 0 | 6 | NW | 25 | 1016 |
| 13:00 | 19:00 | 21.6°C | 15.2°C | 0 | 6.5 | NW | 26 | 1015 |
| 14:00 | 20:00 | 22.5°C | 15.7°C | 0.01 | 7.2 | NW | 25 | 1015 |
| 15:00 | 21:00 | 23°C | 16.1°C | 0.01 | 7.4 | NW | 24 | 1013 |
| 16:00 | 22:00 | 19.3°C | 11.3°C | 0.12 | 9.5 | NW | 36 | 1015 |
| 17:00 | 23:00 | 17.5°C | 11.1°C | 0.31 | 7.1 | NW | 40 | 1015 |
| 18:00 | 00:00 | 18.5°C | 10.8°C | 0.02 | 8.7 | NW | 33 | 1014 |
| 19:00 | 01:00 | 18.3°C | 10.8°C | 0 | 7.7 | NW | 27 | 1014 |
| 20:00 | 02:00 | 18.1°C | 11.4°C | 0 | 6.4 | NNW | 26 | 1015 |
| 21:00 | 03:00 | 13.5°C | 7.8°C | 0 | 5.6 | NNW | 43 | 1015 |
| 22:00 | 04:00 | 12.7°C | 7.6°C | 0 | 4.7 | NNW | 45 | 1017 |
| 23:00 | 05:00 | 12°C | 7.7°C | 0 | 3.5 | NW | 47 | 1017 |
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
- Blackhawk — 44.250°, -103.250°, ERA5 grid cell center, 11.9 km from requested point
- Time zone
- America/Denver
- What's shown here
- The hourly and daily record for 28 May 2017 specifically — not a monthly average. See the Blackhawk 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 Blackhawk, United States (44.25°N, 103.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Blackhawk, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Blackhawk, 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 Blackhawk, 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.