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Katy

United States · 29 August 2017

KatyUnited States11:38 AM localChange location

← 28 August 201730 August 2017 →

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Average

23.2°C

low 21.5° · high 25.2°

Rainfall

71mm

rain recorded

Wind

8.4m/s

daily average

Humidity

87.7%

daily average

Cloud

81%

cover

Pressure

1006hPa

daily average

The temperature ranged from 21.5°C around 04:00 to 25.2°C around 19:00. Rain was recorded across 24 hours, from around 00:00 to 23:00 (71mm 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

0th 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 28.6°C, versus 23.2°C on this specific day.

Sun & daylight

Sunrise

06:58

Sunset

19:48

Day length

12h 50m

Hour by hour

Temperature (line) and hourly rainfall (bars), local time — America/Chicago.

↓ Download CSV
00:0006:0012:0018:0023:00

Cumulative rainfall through the day.

00:0006:0012:0018:0023:00
Local timeUTCTemp °CFeels °CRain mmWind m/sDirHumidity %Pressure hPa
00:0005:0022.621.15.158.6NNE961006
01:0006:0022.220.46.548.8NNE951006
02:0007:002219.914.368.9NNE941006
03:0008:0021.819.114.189.7NNE931005
04:0009:0021.518.59.59.9NNE931005
05:0010:0021.819.649NNE941005
06:0011:0021.819.42.019.2NNE941005
07:0012:0021.819.31.339.2NNE931005
08:0013:0021.719.41.289NNE941005
09:0014:0021.919.91.58.7NNE951006
10:0015:0022.720.61.078.5N871007
11:0016:0023.221.50.418.5N881007
12:0017:0023.822.10.198.3N831007
13:0018:0024.523.30.157.5N791007
14:0019:0024.923.71.267.6NNW791007
15:0020:0024.723.50.997.8NNW811007
16:0021:0024.822.90.858.8N801007
17:0022:0024.623.60.918N841006
18:0023:0025.124.21.028N831007
19:0000:0025.224.11.497.9N801007
20:0001:0024.322.91.357.8N811007
21:0002:0023.521.80.968N821007
22:0003:0022.821.40.387.7N881007
23:0004:002321.90.127.2N871007

Same date, other years

202520242023202220212020201920182016

Nearby cities

Mission Bend

0km away, same day

Cinco Ranch

0km away, same day

Pecan Grove

0km away, same day

Four Corners

0km away, same day

Alief

24.1km away, same day

Bellaire

24.1km away, same day

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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 29 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

Plain text
PastClimate (2026-07-18). 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/
APA
PastClimate. (2026). Historical climate data for Katy, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Katy, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
BibTeX
@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 2026-07-18},
  url = {https://www.pastclimate.com/}
}

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