Katy
United States · 26 August 2017
← 25 August 201727 August 2017 →
Average
25.6°C
low 24.7°C · high 26.5°C
Rainfall
84.3mm
rain recorded
Wind
8.5m/s
daily average
Humidity
94.4%
daily average
Cloud
100%
cover
Pressure
1008hPa
daily average
The temperature ranged from 24.7°C around 23:00 to 26.5°C around 18:00. Rain was recorded across 24 hours, from around 00:00 to 23:00 (84.3mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
0th percentile
Low temperature
53th percentile
Rainfall
100th percentile
Wind
100th 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 28.9°C, versus 25.6°C on this specific day.
Sun & daylight
Sunrise
06:57
Sunset
19:51
Day length
12h 55m
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 | 25.5°C | 24.4°C | 3.03 | 10.1 | E | 93 | 1009 |
| 01:00 | 06:00 | 25.6°C | 24.7°C | 2.47 | 9.8 | E | 92 | 1008 |
| 02:00 | 07:00 | 25.8°C | 25.4°C | 1.02 | 9.2 | E | 92 | 1008 |
| 03:00 | 08:00 | 25.7°C | 25.7°C | 1.6 | 9 | E | 95 | 1008 |
| 04:00 | 09:00 | 25.2°C | 25.3°C | 2.85 | 8.8 | E | 97 | 1007 |
| 05:00 | 10:00 | 25.3°C | 25.2°C | 3.55 | 8.9 | ESE | 96 | 1007 |
| 06:00 | 11:00 | 25.7°C | 26°C | 3.3 | 8.7 | E | 96 | 1007 |
| 07:00 | 12:00 | 25.8°C | 26.3°C | 4.06 | 8.3 | ESE | 95 | 1008 |
| 08:00 | 13:00 | 25.5°C | 26.4°C | 7.19 | 7.8 | ESE | 95 | 1008 |
| 09:00 | 14:00 | 25.3°C | 26.1°C | 7.92 | 7.4 | ESE | 95 | 1009 |
| 10:00 | 15:00 | 25.4°C | 26.3°C | 7.17 | 7.3 | ESE | 94 | 1009 |
| 11:00 | 16:00 | 25.5°C | 26.7°C | 4.72 | 7.1 | ESE | 94 | 1009 |
| 12:00 | 17:00 | 25.9°C | 27°C | 3.89 | 7.3 | ESE | 94 | 1009 |
| 13:00 | 18:00 | 25.9°C | 27.1°C | 4.1 | 7.6 | ESE | 96 | 1009 |
| 14:00 | 19:00 | 25.7°C | 26.5°C | 2.35 | 7.9 | ESE | 95 | 1008 |
| 15:00 | 20:00 | 26°C | 27.1°C | 3.1 | 7.9 | ESE | 96 | 1008 |
| 16:00 | 21:00 | 26.2°C | 27.4°C | 2.82 | 7.9 | ESE | 96 | 1008 |
| 17:00 | 22:00 | 26.2°C | 27.5°C | 2.25 | 6.8 | SE | 90 | 1008 |
| 18:00 | 23:00 | 26.5°C | 27.6°C | 1.08 | 7.6 | ESE | 91 | 1008 |
| 19:00 | 00:00 | 25.6°C | 25.7°C | 1.95 | 8.4 | ESE | 93 | 1008 |
| 20:00 | 01:00 | 25.5°C | 25.2°C | 2.25 | 9.1 | ESE | 94 | 1007 |
| 21:00 | 02:00 | 25.2°C | 24°C | 3.3 | 10.2 | ESE | 94 | 1007 |
| 22:00 | 03:00 | 25°C | 23.7°C | 3.63 | 10.4 | ESE | 96 | 1008 |
| 23:00 | 04:00 | 24.7°C | 23°C | 4.72 | 10.9 | ESE | 97 | 1008 |
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
- Katy — 29.750°, -95.750°, ERA5 grid cell center, 8.2 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 26 August 2017 specifically — not a monthly average. See the Katy 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 (2026-07-20). Historical climate data for Katy, United States (29.75°N, 95.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Katy, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Katy, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Katy, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-20},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.