Aspen
United States · 17 May 2017
Average
-1.2°C
low -6°C · high 3.3°C
Rainfall
8.8mm
rain recorded
Wind
2.3m/s
daily average
Humidity
72.4%
daily average
Cloud
68%
cover
Pressure
1004hPa
daily average
The temperature ranged from -6°C around 03:00 to 3.3°C around 15:00. Rain was recorded across 11 hours, from around 11:00 to 23:00 (8.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
6th percentile
Low temperature
10th percentile
Rainfall
94th percentile
Wind
51th 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 3.2°C, versus -1.2°C on this specific day.
Sun & daylight
Sunrise
05:51
Sunset
20:15
Day length
14h 24m
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 | -3.4°C | -6.8°C | 0 | 1 | SSW | 83 | 1005 |
| 01:00 | 07:00 | -3.7°C | -7.1°C | 0 | 0.9 | SSW | 78 | 1004 |
| 02:00 | 08:00 | -4.5°C | -7.9°C | 0 | 0.8 | SSW | 76 | 1004 |
| 03:00 | 09:00 | -6°C | -9.8°C | 0 | 1.1 | S | 77 | 1004 |
| 04:00 | 10:00 | -5.8°C | -9.5°C | 0 | 1.3 | S | 92 | 1004 |
| 05:00 | 11:00 | -5.7°C | -9.4°C | 0 | 1.2 | S | 91 | 1004 |
| 06:00 | 12:00 | -5.6°C | -9.3°C | 0 | 1.3 | SSE | 87 | 1005 |
| 07:00 | 13:00 | -3.8°C | -7.4°C | 0 | 1.3 | SSE | 86 | 1005 |
| 08:00 | 14:00 | 0.3°C | -3.9°C | 0 | 1.9 | SW | 55 | 1004 |
| 09:00 | 15:00 | 2.1°C | -3.6°C | 0.02 | 4.1 | WSW | 49 | 1004 |
| 10:00 | 16:00 | 2.8°C | -3.2°C | 0.03 | 4.7 | SW | 55 | 1003 |
| 11:00 | 17:00 | 1.7°C | -4°C | 0.14 | 4.2 | WSW | 57 | 1003 |
| 12:00 | 18:00 | 1.1°C | -4.5°C | 0.45 | 4.2 | WSW | 59 | 1002 |
| 13:00 | 19:00 | 2.7°C | -2.7°C | 0.19 | 3.9 | WSW | 55 | 1002 |
| 14:00 | 20:00 | 2.9°C | -2.5°C | 0.31 | 3.8 | WSW | 53 | 1002 |
| 15:00 | 21:00 | 3.3°C | -2.3°C | 1.27 | 4.2 | WSW | 52 | 1003 |
| 16:00 | 22:00 | 0.1°C | -4.2°C | 0.74 | 2.5 | SW | 71 | 1003 |
| 17:00 | 23:00 | 0.3°C | -4°C | 0.14 | 2.6 | WSW | 71 | 1003 |
| 18:00 | 00:00 | 1.2°C | -3.3°C | 0 | 2.6 | W | 62 | 1004 |
| 19:00 | 01:00 | 1.2°C | -3.1°C | 0.01 | 2.4 | WNW | 62 | 1006 |
| 20:00 | 02:00 | -0.4°C | -4.2°C | 0.17 | 1.8 | NW | 76 | 1008 |
| 21:00 | 03:00 | -2.5°C | -5.6°C | 0.74 | 0.9 | N | 92 | 1008 |
| 22:00 | 04:00 | -2.9°C | -5.5°C | 2.38 | 0.4 | NNW | 98 | 1008 |
| 23:00 | 05:00 | -3.2°C | -6.4°C | 2.16 | 1.2 | WNW | 100 | 1008 |
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
- Aspen — 39.250°, -106.750°, ERA5 grid cell center, 8.8 km from requested point
- Time zone
- America/Denver
- What's shown here
- The hourly and daily record for 17 May 2017 specifically — not a monthly average. See the Aspen 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 Aspen, United States (39.25°N, 106.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Aspen, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Aspen, 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 Aspen, 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.