Home / Tomball / 27 August 2018
Tomball
United States · 27 August 2018
← 26 August 201828 August 2018 →
Average
29°C
low 24.8° · high 33.8°
Rainfall
2.3mm
rain recorded
Wind
2.5m/s
daily average
Humidity
75.6%
daily average
Cloud
88%
cover
Pressure
1015hPa
daily average
The temperature ranged from 24.8°C around 05:00 to 33.8°C around 15:00. Rain was recorded across 6 hours, from around 06:00 to 17:00 (2.3mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
57th percentile
Low temperature
73th percentile
Rainfall
50th percentile
Wind
74th 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 28.3°C, versus 29°C on this specific day.
Sun & daylight
Sunrise
06:56
Sunset
19:50
Day length
12h 54m
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 | 27.4 | 32.5 | 0 | 2.6 | SE | 91 | 1016 |
| 01:00 | 06:00 | 26.8 | 31.5 | 0 | 2.5 | SE | 91 | 1016 |
| 02:00 | 07:00 | 26.5 | 31.2 | 0 | 2.2 | SSE | 90 | 1015 |
| 03:00 | 08:00 | 26.2 | 31.2 | 0.03 | 1.7 | SE | 91 | 1015 |
| 04:00 | 09:00 | 25.5 | 30 | 0.07 | 1.7 | SSE | 91 | 1015 |
| 05:00 | 10:00 | 24.8 | 29.6 | 0.09 | 1.5 | SSW | 96 | 1015 |
| 06:00 | 11:00 | 24.8 | 29.6 | 0.1 | 1.4 | SSE | 95 | 1015 |
| 07:00 | 12:00 | 24.8 | 29.3 | 0.07 | 1.7 | S | 94 | 1015 |
| 08:00 | 13:00 | 25.5 | 29.9 | 0.03 | 2.2 | S | 92 | 1016 |
| 09:00 | 14:00 | 27.5 | 32 | 0.08 | 2.7 | SSW | 86 | 1016 |
| 10:00 | 15:00 | 30.2 | 33.2 | 0.14 | 2.8 | SSW | 64 | 1016 |
| 11:00 | 16:00 | 31.4 | 34.6 | 0.08 | 2.7 | SSW | 61 | 1016 |
| 12:00 | 17:00 | 32.1 | 34.7 | 0.2 | 2.7 | S | 54 | 1016 |
| 13:00 | 18:00 | 32.8 | 36 | 0.14 | 2.6 | S | 55 | 1015 |
| 14:00 | 19:00 | 33.6 | 37.1 | 0.02 | 3 | SSE | 56 | 1015 |
| 15:00 | 20:00 | 33.8 | 36.7 | 0.04 | 3.3 | SSE | 54 | 1014 |
| 16:00 | 21:00 | 33.5 | 35.9 | 1.02 | 3.6 | SSE | 52 | 1013 |
| 17:00 | 22:00 | 31.3 | 36 | 0.13 | 1.7 | SE | 66 | 1013 |
| 18:00 | 23:00 | 31.5 | 35.1 | 0 | 3.4 | SE | 66 | 1013 |
| 19:00 | 00:00 | 31.4 | 34.9 | 0.02 | 3.2 | SE | 65 | 1014 |
| 20:00 | 01:00 | 30.2 | 33.4 | 0 | 3.1 | SE | 67 | 1013 |
| 21:00 | 02:00 | 29.3 | 32.9 | 0 | 2.9 | SSE | 72 | 1013 |
| 22:00 | 03:00 | 28.2 | 32.6 | 0 | 2.9 | SSE | 83 | 1014 |
| 23:00 | 04:00 | 27.9 | 32.2 | 0 | 2.9 | SE | 83 | 1014 |
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 27 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 (2026-07-17). 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 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Tomball, 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 Tomball, 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.