Donna
United States · 28 July 2018
Average
31.7°C
low 26.3° · high 38.6°
Rainfall
0.5mm
dry day
Wind
4.6m/s
daily average
Humidity
67.4%
daily average
Cloud
37%
cover
Pressure
1015hPa
daily average
The temperature ranged from 26.3°C around 05:00 to 38.6°C around 15:00. Rain was recorded for one hour, around 16:00 (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
90th percentile
Low temperature
76th percentile
Rainfall
56th percentile
Wind
50th 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 30.3°C, versus 31.7°C on this specific day.
Sun & daylight
Sunrise
06:55
Sunset
20:21
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 °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 28.5 | 32.1 | 0 | 5.1 | SE | 87 | 1015 |
| 01:00 | 06:00 | 28.3 | 32 | 0 | 4.5 | SE | 86 | 1016 |
| 02:00 | 07:00 | 27.9 | 31.8 | 0 | 3.9 | SE | 85 | 1016 |
| 03:00 | 08:00 | 27.6 | 31.5 | 0 | 3.5 | SE | 85 | 1015 |
| 04:00 | 09:00 | 27.4 | 31.4 | 0 | 3.3 | SE | 86 | 1015 |
| 05:00 | 10:00 | 26.3 | 30.3 | 0 | 3.2 | SSE | 91 | 1015 |
| 06:00 | 11:00 | 26.6 | 30.6 | 0 | 3.1 | SSE | 90 | 1015 |
| 07:00 | 12:00 | 26.7 | 30.7 | 0 | 3.2 | SE | 89 | 1016 |
| 08:00 | 13:00 | 27.2 | 30.6 | 0 | 4.3 | SSE | 89 | 1016 |
| 09:00 | 14:00 | 28.7 | 31.9 | 0 | 4.7 | SSE | 80 | 1016 |
| 10:00 | 15:00 | 32 | 34.3 | 0 | 4.6 | SSE | 61 | 1016 |
| 11:00 | 16:00 | 33.7 | 35.6 | 0 | 4.7 | SSE | 54 | 1016 |
| 12:00 | 17:00 | 35.7 | 36.7 | 0.01 | 4.8 | SSE | 44 | 1016 |
| 13:00 | 18:00 | 36.8 | 37.9 | 0 | 4.8 | SSE | 42 | 1015 |
| 14:00 | 19:00 | 37.8 | 39 | 0 | 4.8 | SE | 40 | 1015 |
| 15:00 | 20:00 | 38.6 | 39.3 | 0 | 5.2 | SE | 37 | 1014 |
| 16:00 | 21:00 | 36.6 | 37.8 | 0.4 | 5.6 | SE | 45 | 1013 |
| 17:00 | 22:00 | 35.8 | 37.5 | 0.01 | 5 | SE | 47 | 1013 |
| 18:00 | 23:00 | 35.9 | 37.8 | 0.08 | 4.9 | SE | 48 | 1012 |
| 19:00 | 00:00 | 35.1 | 36.8 | 0 | 5.4 | SE | 51 | 1012 |
| 20:00 | 01:00 | 33.7 | 35.6 | 0 | 5.5 | SE | 57 | 1013 |
| 21:00 | 02:00 | 32.5 | 34.8 | 0 | 5.7 | ESE | 64 | 1013 |
| 22:00 | 03:00 | 30.9 | 34 | 0 | 5.9 | ESE | 77 | 1014 |
| 23:00 | 04:00 | 29.9 | 33.6 | 0 | 5.6 | SE | 83 | 1015 |
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
- Donna — 26.250°, -98.000°, ERA5 grid cell center, 10.3 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 28 July 2018 specifically — not a monthly average. See the Donna 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 Donna, United States (26.25°N, 98.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Donna, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Donna, 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 Donna, 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.