Home / Tomball / 28 August 2018
Tomball
United States · 28 August 2018
← 27 August 201829 August 2018 →
Average
28.7°C
low 25° · high 32.8°
Rainfall
6.2mm
rain recorded
Wind
2.3m/s
daily average
Humidity
77.6%
daily average
Cloud
97%
cover
Pressure
1015hPa
daily average
The temperature ranged from 25°C around 07:00 to 32.8°C around 14:00. Rain was recorded across 5 hours, from around 07:00 to 17:00 (6.1mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
40th percentile
Low temperature
79th percentile
Rainfall
73th percentile
Wind
59th 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 28.2°C, versus 28.7°C on this specific day.
Sun & daylight
Sunrise
06:56
Sunset
19:49
Day length
12h 52m
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 | 27.5 | 31.9 | 0 | 3.1 | SE | 87 | 1014 |
| 01:00 | 06:00 | 27.1 | 31.4 | 0 | 3 | SSE | 88 | 1014 |
| 02:00 | 07:00 | 26.8 | 31.1 | 0.03 | 2.8 | SSE | 88 | 1015 |
| 03:00 | 08:00 | 26.7 | 31.2 | 0.01 | 2.4 | SSE | 88 | 1014 |
| 04:00 | 09:00 | 26.3 | 31.2 | 0 | 2 | S | 91 | 1014 |
| 05:00 | 10:00 | 25.3 | 30.7 | 0 | 0.6 | WNW | 93 | 1014 |
| 06:00 | 11:00 | 25.4 | 30 | 0.01 | 1.9 | SE | 93 | 1014 |
| 07:00 | 12:00 | 25 | 28.7 | 0.43 | 2.8 | SSE | 93 | 1015 |
| 08:00 | 13:00 | 26.1 | 30.9 | 0 | 1.9 | SSE | 91 | 1015 |
| 09:00 | 14:00 | 27.6 | 32.6 | 0.01 | 2.1 | SE | 86 | 1016 |
| 10:00 | 15:00 | 30.4 | 34 | 0.07 | 2.3 | SSE | 65 | 1016 |
| 11:00 | 16:00 | 31.3 | 35.6 | 0.07 | 1.7 | S | 63 | 1016 |
| 12:00 | 17:00 | 32 | 36.1 | 0.05 | 1.8 | SSE | 59 | 1016 |
| 13:00 | 18:00 | 32.6 | 36.6 | 0.02 | 1.8 | SSE | 57 | 1016 |
| 14:00 | 19:00 | 32.8 | 36.5 | 1.12 | 2.4 | SE | 57 | 1016 |
| 15:00 | 20:00 | 30.8 | 34 | 0.84 | 3 | SE | 63 | 1015 |
| 16:00 | 21:00 | 30.5 | 33.5 | 3.15 | 3.5 | SE | 66 | 1014 |
| 17:00 | 22:00 | 29.6 | 35.3 | 0.33 | 1.2 | ENE | 77 | 1014 |
| 18:00 | 23:00 | 30.8 | 36.3 | 0 | 1.4 | ENE | 71 | 1015 |
| 19:00 | 00:00 | 30.8 | 35.9 | 0 | 1.5 | SSE | 70 | 1015 |
| 20:00 | 01:00 | 29.8 | 33.8 | 0 | 3.1 | SSE | 74 | 1015 |
| 21:00 | 02:00 | 28.7 | 32.7 | 0 | 2.9 | SSE | 78 | 1015 |
| 22:00 | 03:00 | 27.9 | 32 | 0 | 2.7 | S | 81 | 1015 |
| 23:00 | 04:00 | 27.3 | 31.1 | 0 | 2.9 | SE | 82 | 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
- Tomball — 30.000°, -95.500°, ERA5 grid cell center, 15.5 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 28 August 2018 specifically — not a monthly average. See the Tomball 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 Tomball, United States (30.00°N, 95.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Tomball, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Tomball, 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 Tomball, 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.