Home / Roy / 24 September 2017
Roy
United States · 24 September 2017
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Average
5.9°C
low 4.6°C · high 7.3°C
Rainfall
15.8mm
rain recorded
Wind
1.9m/s
daily average
Humidity
90.7%
daily average
Cloud
98%
cover
Pressure
1015hPa
daily average
The temperature ranged from 4.6°C around 02:00 to 7.3°C around 12:00. Rain was recorded across 18 hours, from around 00:00 to 20:00 (15.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
0th percentile
Low temperature
9th percentile
Rainfall
97th percentile
Wind
56th 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 16.1°C, versus 5.9°C on this specific day.
Sun & daylight
Sunrise
07:17
Sunset
19:21
Day length
12h 3m
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 | 5.4°C | 3.5°C | 0.83 | 0.4 | WNW | 82 | 1014 |
| 01:00 | 07:00 | 5°C | 3.3°C | 1.42 | 0.2 | NNW | 85 | 1015 |
| 02:00 | 08:00 | 4.6°C | 2.6°C | 1.43 | 0.7 | N | 87 | 1014 |
| 03:00 | 09:00 | 4.9°C | 2.4°C | 0.9 | 1.5 | NNW | 88 | 1014 |
| 04:00 | 10:00 | 4.7°C | 2.1°C | 0.26 | 1.8 | NNW | 96 | 1012 |
| 05:00 | 11:00 | 5.2°C | 2.3°C | 0.06 | 2.3 | N | 95 | 1012 |
| 06:00 | 12:00 | 5.6°C | 2.8°C | 0.04 | 2.2 | N | 92 | 1011 |
| 07:00 | 13:00 | 5.5°C | 2.7°C | 0.03 | 2.2 | NNW | 90 | 1012 |
| 08:00 | 14:00 | 5.2°C | 2.4°C | 0.1 | 2 | NNW | 89 | 1012 |
| 09:00 | 15:00 | 5.8°C | 2.9°C | 0.23 | 2.2 | NNW | 86 | 1013 |
| 10:00 | 16:00 | 5.7°C | 2.5°C | 0.91 | 2.5 | NNW | 86 | 1013 |
| 11:00 | 17:00 | 6.7°C | 3.7°C | 1.35 | 2.6 | NNW | 88 | 1014 |
| 12:00 | 18:00 | 7.3°C | 4.4°C | 1.18 | 2.7 | NNW | 90 | 1015 |
| 13:00 | 19:00 | 6.6°C | 3.7°C | 1.4 | 2.7 | NNW | 91 | 1015 |
| 14:00 | 20:00 | 6.5°C | 3.6°C | 1.17 | 2.7 | NNW | 94 | 1016 |
| 15:00 | 21:00 | 6.2°C | 3.5°C | 1.01 | 2.3 | NW | 95 | 1017 |
| 16:00 | 22:00 | 6.7°C | 3.8°C | 0.95 | 2.5 | NW | 88 | 1016 |
| 17:00 | 23:00 | 6.9°C | 4.2°C | 0.93 | 2.3 | NW | 89 | 1017 |
| 18:00 | 00:00 | 6.6°C | 4.7°C | 0.77 | 1.2 | NW | 92 | 1018 |
| 19:00 | 01:00 | 6.6°C | 5.2°C | 0.51 | 0.4 | S | 91 | 1018 |
| 20:00 | 02:00 | 6.4°C | 4.4°C | 0.19 | 1.4 | SSE | 93 | 1019 |
| 21:00 | 03:00 | 5.7°C | 3.4°C | 0.07 | 1.8 | SSE | 97 | 1019 |
| 22:00 | 04:00 | 5.5°C | 3.1°C | 0.04 | 1.8 | SSE | 97 | 1019 |
| 23:00 | 05:00 | 5.7°C | 3.3°C | 0.03 | 1.9 | SSE | 96 | 1019 |
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
- Roy — 41.250°, -112.000°, ERA5 grid cell center, 10.1 km from requested point
- Time zone
- America/Denver
- What's shown here
- The hourly and daily record for 24 September 2017 specifically — not a monthly average. See the Roy 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 (2026-07-19). Historical climate data for Roy, United States (41.25°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 Roy, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Roy, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 19, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Roy, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-19},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.