Katy
United States · 28 August 2019
← 27 August 201929 August 2019 →
Average
28.5°C
low 25.4°C · high 33.7°C
Rainfall
9.3mm
rain recorded
Wind
1.2m/s
daily average
Humidity
79.7%
daily average
Cloud
89%
cover
Pressure
1016hPa
daily average
The temperature ranged from 25.4°C around 23:00 to 33.7°C around 15:00. Rain was recorded across 4 hours, from around 14:00 to 17:00 (9.3mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
60th percentile
Low temperature
83th percentile
Rainfall
80th percentile
Wind
1th 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 28.5°C, versus 28.5°C on this specific day.
Sun & daylight
Sunrise
06:57
Sunset
19:50
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 | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 27.2°C | 32.9°C | 0 | 1.3 | SSE | 90 | 1014 |
| 01:00 | 06:00 | 26.9°C | 32.8°C | 0 | 1.1 | S | 91 | 1015 |
| 02:00 | 07:00 | 27°C | 32.7°C | 0 | 1.3 | SSW | 92 | 1015 |
| 03:00 | 08:00 | 26.4°C | 32.3°C | 0 | 1 | WNW | 95 | 1015 |
| 04:00 | 09:00 | 26.5°C | 32.8°C | 0 | 0.7 | NW | 95 | 1015 |
| 05:00 | 10:00 | 25.9°C | 31.3°C | 0 | 1.4 | NW | 95 | 1014 |
| 06:00 | 11:00 | 26°C | 31.6°C | 0 | 1.2 | ESE | 94 | 1016 |
| 07:00 | 12:00 | 25.9°C | 31.6°C | 0 | 1.1 | E | 95 | 1016 |
| 08:00 | 13:00 | 26.9°C | 32.8°C | 0 | 1.2 | E | 92 | 1016 |
| 09:00 | 14:00 | 28.2°C | 34.1°C | 0 | 1.4 | E | 86 | 1016 |
| 10:00 | 15:00 | 30.7°C | 35.7°C | 0 | 1 | ESE | 66 | 1017 |
| 11:00 | 16:00 | 31.8°C | 37.1°C | 0 | 0.8 | SE | 64 | 1017 |
| 12:00 | 17:00 | 32.5°C | 37.1°C | 0.03 | 1.1 | SE | 58 | 1017 |
| 13:00 | 18:00 | 32.4°C | 37°C | 0.02 | 1 | SE | 58 | 1017 |
| 14:00 | 19:00 | 32.7°C | 37.3°C | 0.1 | 1.2 | SSE | 58 | 1016 |
| 15:00 | 20:00 | 33.7°C | 38.8°C | 2.35 | 1.2 | ESE | 57 | 1016 |
| 16:00 | 21:00 | 33.3°C | 38.3°C | 3.71 | 1.4 | ENE | 59 | 1015 |
| 17:00 | 22:00 | 28.1°C | 32.8°C | 3.04 | 2.3 | SSE | 82 | 1015 |
| 18:00 | 23:00 | 27.9°C | 32.5°C | 0.01 | 1.8 | SE | 79 | 1015 |
| 19:00 | 00:00 | 27.8°C | 32.6°C | 0 | 0.8 | SE | 76 | 1015 |
| 20:00 | 01:00 | 26.8°C | 30.9°C | 0 | 1.1 | E | 77 | 1014 |
| 21:00 | 02:00 | 26.5°C | 30.7°C | 0 | 1 | E | 78 | 1015 |
| 22:00 | 03:00 | 26°C | 31°C | 0 | 1 | ESE | 88 | 1015 |
| 23:00 | 04:00 | 25.4°C | 29.9°C | 0 | 1.4 | ESE | 89 | 1016 |
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 28 August 2019 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 (2026-07-21). 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 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Katy, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 21, 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 2026-07-21},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.