Roma
United States · 28 July 2017
Average
31.8°C
low 24.8°C · high 39.8°C
Rainfall
0mm
dry day
Wind
6.2m/s
daily average
Humidity
55.3%
daily average
Cloud
1%
cover
Pressure
1012hPa
daily average
The temperature ranged from 24.8°C around 07:00 to 39.8°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
69th percentile
Low temperature
11th percentile
Rainfall
47th percentile
Wind
75th 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 31.3°C, versus 31.8°C on this specific day.
Sun & daylight
Sunrise
06:59
Sunset
20:25
Day length
13h 26m
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 | 28.1°C | 28.2°C | 0 | 7.1 | SE | 72 | 1014 |
| 01:00 | 06:00 | 27.7°C | 28°C | 0 | 6.7 | SE | 74 | 1014 |
| 02:00 | 07:00 | 27.3°C | 27.9°C | 0 | 6.1 | SE | 74 | 1014 |
| 03:00 | 08:00 | 27.2°C | 28°C | 0 | 5.6 | SSE | 74 | 1013 |
| 04:00 | 09:00 | 26.6°C | 27.7°C | 0 | 5.1 | SSE | 75 | 1013 |
| 05:00 | 10:00 | 25°C | 26.1°C | 0 | 4.8 | SSE | 82 | 1013 |
| 06:00 | 11:00 | 24.9°C | 26.3°C | 0 | 4.3 | SE | 82 | 1013 |
| 07:00 | 12:00 | 24.8°C | 26.6°C | 0 | 3.9 | SE | 82 | 1013 |
| 08:00 | 13:00 | 25.6°C | 27.3°C | 0 | 4.5 | SE | 81 | 1014 |
| 09:00 | 14:00 | 27.3°C | 28.6°C | 0 | 5.2 | SE | 75 | 1014 |
| 10:00 | 15:00 | 30.1°C | 30.2°C | 0 | 5.5 | SE | 57 | 1014 |
| 11:00 | 16:00 | 32.2°C | 32.1°C | 0 | 5.8 | SE | 50 | 1014 |
| 12:00 | 17:00 | 35°C | 33.6°C | 0 | 6.2 | SE | 38 | 1013 |
| 13:00 | 18:00 | 36.7°C | 35.5°C | 0 | 6.3 | SE | 35 | 1012 |
| 14:00 | 19:00 | 37.8°C | 36.5°C | 0 | 6.3 | SE | 33 | 1011 |
| 15:00 | 20:00 | 39.1°C | 37.5°C | 0 | 6.3 | SE | 29 | 1010 |
| 16:00 | 21:00 | 39.8°C | 37.9°C | 0 | 6.2 | SE | 27 | 1009 |
| 17:00 | 22:00 | 39.5°C | 37.7°C | 0 | 6.8 | SE | 29 | 1009 |
| 18:00 | 23:00 | 39.3°C | 37.1°C | 0 | 7.1 | SE | 29 | 1009 |
| 19:00 | 00:00 | 37.9°C | 35.4°C | 0 | 7.6 | SE | 31 | 1009 |
| 20:00 | 01:00 | 36.1°C | 33.2°C | 0 | 7.7 | SE | 33 | 1009 |
| 21:00 | 02:00 | 33.5°C | 31°C | 0 | 7.8 | SE | 42 | 1010 |
| 22:00 | 03:00 | 31.3°C | 30.3°C | 0 | 8 | SE | 57 | 1011 |
| 23:00 | 04:00 | 29.9°C | 29.7°C | 0 | 7.6 | SE | 66 | 1012 |
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
- Roma — 26.500°, -99.000°, ERA5 grid cell center, 10.7 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 28 July 2017 specifically — not a monthly average. See the Roma 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 (2026-07-18). Historical climate data for Roma, United States (26.50°N, 99.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Roma, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Roma, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Roma, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-18},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.