Roby
United States · 25 May 2017
Average
28.5°C
low 17.1°C · high 40.1°C
Rainfall
0mm
dry day
Wind
7.6m/s
daily average
Humidity
31.1%
daily average
Cloud
16%
cover
Pressure
1000hPa
daily average
The temperature ranged from 17.1°C around 07:00 to 40.1°C around 16:00. 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
97th percentile
Low temperature
31th percentile
Rainfall
36th percentile
Wind
95th 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 24.8°C, versus 28.5°C on this specific day.
Sun & daylight
Sunrise
06:37
Sunset
20:40
Day length
14h 4m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 21.9°C | 15.8°C | 0 | 7.8 | S | 39 | 1003 |
| 01:00 | 06:00 | 21.2°C | 15.1°C | 0 | 7.8 | SSW | 41 | 1003 |
| 02:00 | 07:00 | 20.2°C | 14.1°C | 0 | 7.9 | SSW | 44 | 1002 |
| 03:00 | 08:00 | 19.5°C | 13.6°C | 0 | 7.8 | SSW | 48 | 1002 |
| 04:00 | 09:00 | 18.4°C | 13°C | 0 | 7.6 | SSW | 58 | 1002 |
| 05:00 | 10:00 | 17.3°C | 12°C | 0 | 7.3 | SSW | 57 | 1001 |
| 06:00 | 11:00 | 17.3°C | 11.9°C | 0 | 7.3 | SSW | 57 | 1002 |
| 07:00 | 12:00 | 17.1°C | 11.5°C | 0 | 7.3 | SSW | 55 | 1002 |
| 08:00 | 13:00 | 18°C | 12.7°C | 0 | 7.2 | SW | 55 | 1002 |
| 09:00 | 14:00 | 21°C | 15.7°C | 0 | 7.5 | SW | 48 | 1002 |
| 10:00 | 15:00 | 27.1°C | 21.1°C | 0 | 7.9 | SW | 31 | 1002 |
| 11:00 | 16:00 | 31.1°C | 25.2°C | 0 | 8.2 | SW | 26 | 1001 |
| 12:00 | 17:00 | 33.9°C | 27.7°C | 0 | 8.1 | SW | 20 | 1001 |
| 13:00 | 18:00 | 36.2°C | 29.7°C | 0 | 7.6 | WSW | 15 | 1000 |
| 14:00 | 19:00 | 37.7°C | 31°C | 0 | 7.2 | WSW | 11 | 999 |
| 15:00 | 20:00 | 38.8°C | 31.7°C | 0 | 7.3 | WSW | 9 | 998 |
| 16:00 | 21:00 | 40.1°C | 32.5°C | 0 | 7.6 | SW | 7 | 998 |
| 17:00 | 22:00 | 39.6°C | 31.4°C | 0 | 7.9 | WSW | 6 | 997 |
| 18:00 | 23:00 | 39.7°C | 31°C | 0 | 8.3 | WSW | 4 | 997 |
| 19:00 | 00:00 | 39.3°C | 31.1°C | 0 | 7.1 | SW | 3 | 997 |
| 20:00 | 01:00 | 37.7°C | 30.6°C | 0 | 6.1 | SW | 5 | 997 |
| 21:00 | 02:00 | 34.1°C | 29.6°C | 0 | 6.3 | SSW | 22 | 998 |
| 22:00 | 03:00 | 29.4°C | 25.3°C | 0 | 8.1 | SSW | 41 | 1000 |
| 23:00 | 04:00 | 28°C | 23.7°C | 0 | 8.6 | SSW | 47 | 1002 |
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
- Roby — 32.750°, -100.500°, ERA5 grid cell center, 11.5 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 25 May 2017 specifically — not a monthly average. See the Roby 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 Roby, United States (32.75°N, 100.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Roby, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Roby, 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 Roby, 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.