Roma
United States · 27 July 2017
Average
31.1°C
low 24.7° · high 38.6°
Rainfall
0.5mm
dry day
Wind
6.3m/s
daily average
Humidity
56.7%
daily average
Cloud
22%
cover
Pressure
1014hPa
daily average
The temperature ranged from 24.7°C around 07:00 to 38.6°C around 16:00. Rain was recorded for one hour, around 17:00 (0.5mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
44th percentile
Low temperature
11th percentile
Rainfall
77th percentile
Wind
76th 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 31.1°C on this specific day.
Sun & daylight
Sunrise
06:58
Sunset
20:25
Day length
13h 27m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 28.4 | 28.4 | 0 | 6.7 | SE | 69 | 1017 |
| 01:00 | 06:00 | 27.9 | 28.6 | 0 | 6.1 | SE | 72 | 1016 |
| 02:00 | 07:00 | 27.7 | 28.8 | 0 | 5.6 | SE | 74 | 1016 |
| 03:00 | 08:00 | 26.4 | 27.6 | 0 | 5.2 | SE | 78 | 1016 |
| 04:00 | 09:00 | 26.2 | 27.4 | 0 | 5.1 | SE | 79 | 1015 |
| 05:00 | 10:00 | 24.8 | 26.3 | 0 | 4.8 | SE | 87 | 1015 |
| 06:00 | 11:00 | 24.8 | 25.9 | 0 | 5.2 | SE | 85 | 1015 |
| 07:00 | 12:00 | 24.7 | 25.8 | 0 | 4.9 | SE | 83 | 1015 |
| 08:00 | 13:00 | 25.4 | 26.7 | 0 | 4.9 | SE | 82 | 1016 |
| 09:00 | 14:00 | 27.3 | 28.4 | 0 | 5.4 | SSE | 74 | 1016 |
| 10:00 | 15:00 | 30.2 | 30.2 | 0 | 5.8 | SSE | 57 | 1016 |
| 11:00 | 16:00 | 32.5 | 32 | 0 | 6.2 | SE | 49 | 1016 |
| 12:00 | 17:00 | 34.3 | 32.7 | 0 | 6.5 | SE | 39 | 1015 |
| 13:00 | 18:00 | 36.1 | 34.7 | 0 | 6.6 | SE | 37 | 1015 |
| 14:00 | 19:00 | 36.9 | 35.5 | 0.01 | 6.7 | SE | 35 | 1014 |
| 15:00 | 20:00 | 37.9 | 36 | 0 | 6.8 | SE | 32 | 1013 |
| 16:00 | 21:00 | 38.6 | 36.8 | 0 | 6.9 | SE | 31 | 1012 |
| 17:00 | 22:00 | 37.8 | 35.6 | 0.49 | 6.2 | SE | 29 | 1011 |
| 18:00 | 23:00 | 36 | 33 | 0 | 7.5 | SE | 32 | 1012 |
| 19:00 | 00:00 | 35.2 | 32 | 0 | 8.2 | SE | 35 | 1011 |
| 20:00 | 01:00 | 34.5 | 31.6 | 0 | 7.9 | SE | 37 | 1012 |
| 21:00 | 02:00 | 32.5 | 30 | 0 | 7.8 | SE | 43 | 1012 |
| 22:00 | 03:00 | 30.6 | 29.6 | 0 | 7.6 | SE | 58 | 1013 |
| 23:00 | 04:00 | 29.1 | 28.4 | 0 | 7.4 | SE | 64 | 1013 |
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 27 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 (2026-07-17). 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 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Roma, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 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 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.