Home / Roy / 23 September 2019
Roy
United States · 23 September 2019
← 22 September 201924 September 2019 →
Average
15.2°C
low 8.1°C · high 22.4°C
Rainfall
0mm
dry day
Wind
1.6m/s
daily average
Humidity
48.5%
daily average
Cloud
40%
cover
Pressure
1015hPa
daily average
The temperature ranged from 8.1°C around 04:00 to 22.4°C around 15:00. No measurable rain was recorded during the day.
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
39th percentile
Low temperature
33th percentile
Rainfall
70th percentile
Wind
30th 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 15.2°C on this specific day.
Sun & daylight
Sunrise
07:16
Sunset
19:23
Day length
12h 7m
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 | 11°C | 8.8°C | 0 | 1.7 | E | 69 | 1012 |
| 01:00 | 07:00 | 10.6°C | 8.3°C | 0 | 1.9 | E | 72 | 1012 |
| 02:00 | 08:00 | 10.5°C | 8°C | 0 | 2.1 | E | 72 | 1012 |
| 03:00 | 09:00 | 10.5°C | 8°C | 0 | 2.2 | E | 73 | 1012 |
| 04:00 | 10:00 | 8.1°C | 5.2°C | 0 | 2.4 | E | 75 | 1012 |
| 05:00 | 11:00 | 8.6°C | 5.6°C | 0 | 2.3 | E | 71 | 1013 |
| 06:00 | 12:00 | 8.8°C | 6°C | 0 | 2 | E | 69 | 1013 |
| 07:00 | 13:00 | 8.9°C | 6.2°C | 0 | 1.7 | E | 68 | 1013 |
| 08:00 | 14:00 | 9.5°C | 6.8°C | 0 | 1.8 | E | 66 | 1014 |
| 09:00 | 15:00 | 12.8°C | 10.1°C | 0 | 1.8 | E | 53 | 1015 |
| 10:00 | 16:00 | 17.3°C | 15.2°C | 0 | 1 | SSE | 40 | 1016 |
| 11:00 | 17:00 | 19.5°C | 16.4°C | 0 | 1.8 | SW | 28 | 1016 |
| 12:00 | 18:00 | 20.1°C | 16.9°C | 0 | 2.2 | SW | 29 | 1017 |
| 13:00 | 19:00 | 20.8°C | 17.5°C | 0 | 2.2 | WSW | 28 | 1016 |
| 14:00 | 20:00 | 21.4°C | 18.3°C | 0 | 2.1 | WSW | 28 | 1016 |
| 15:00 | 21:00 | 22.4°C | 19.3°C | 0 | 2 | WSW | 25 | 1016 |
| 16:00 | 22:00 | 21.9°C | 18.7°C | 0 | 2 | WNW | 26 | 1016 |
| 17:00 | 23:00 | 21.6°C | 18.8°C | 0 | 1.6 | WNW | 26 | 1015 |
| 18:00 | 00:00 | 21.2°C | 18.8°C | 0 | 1 | W | 28 | 1016 |
| 19:00 | 01:00 | 20.5°C | 18.2°C | 0 | 0.9 | W | 29 | 1016 |
| 20:00 | 02:00 | 18.3°C | 16.3°C | 0 | 0.5 | E | 34 | 1017 |
| 21:00 | 03:00 | 15°C | 13.3°C | 0 | 0.3 | ESE | 44 | 1017 |
| 22:00 | 04:00 | 13.6°C | 11.8°C | 0 | 0.6 | E | 51 | 1017 |
| 23:00 | 05:00 | 11.7°C | 9.5°C | 0 | 1.1 | NE | 58 | 1018 |
Nearby cities
Need this verified for an official or legal purpose? Request a weather verification report.
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 23 September 2019 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 (2026-07-20). 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 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Roy, 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 Roy, 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.