Home / Gretna / 29 August 2017
Gretna
United States · 29 August 2017
← 28 August 201730 August 2017 →
Average
25.9°C
low 25°C · high 26.7°C
Rainfall
78mm
rain recorded
Wind
5.7m/s
daily average
Humidity
90.7%
daily average
Cloud
96%
cover
Pressure
1009hPa
daily average
The temperature ranged from 25°C around 06:00 to 26.7°C around 18:00. Rain was recorded across 24 hours, from around 00:00 to 23:00 (78mm 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
15th percentile
Rainfall
99th percentile
Wind
96th 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 28.1°C, versus 25.9°C on this specific day.
Sun & daylight
Sunrise
06:35
Sunset
19:25
Day length
12h 50m
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 | 25.8°C | 27.8°C | 0.78 | 5.7 | E | 92 | 1010 |
| 01:00 | 06:00 | 25.7°C | 28°C | 1.44 | 5.3 | ESE | 92 | 1010 |
| 02:00 | 07:00 | 26°C | 28°C | 1.21 | 5.7 | ESE | 90 | 1010 |
| 03:00 | 08:00 | 25.9°C | 28.1°C | 0.51 | 5.7 | ESE | 92 | 1009 |
| 04:00 | 09:00 | 25.8°C | 28.2°C | 0.79 | 5.2 | SE | 92 | 1009 |
| 05:00 | 10:00 | 25.2°C | 27.7°C | 2.03 | 4.9 | E | 95 | 1009 |
| 06:00 | 11:00 | 25°C | 27.5°C | 3.58 | 4.8 | ESE | 94 | 1010 |
| 07:00 | 12:00 | 25.2°C | 27.5°C | 6.62 | 5 | ESE | 93 | 1010 |
| 08:00 | 13:00 | 25.3°C | 27.8°C | 3.95 | 4.6 | ESE | 92 | 1010 |
| 09:00 | 14:00 | 25.1°C | 27°C | 5.31 | 5.2 | ESE | 91 | 1010 |
| 10:00 | 15:00 | 25.5°C | 27.2°C | 3.21 | 5.8 | ESE | 91 | 1011 |
| 11:00 | 16:00 | 25.7°C | 27°C | 1.91 | 6.5 | ESE | 90 | 1010 |
| 12:00 | 17:00 | 26.7°C | 27.8°C | 2.05 | 6.6 | ESE | 85 | 1010 |
| 13:00 | 18:00 | 26.4°C | 27.3°C | 4.88 | 6.9 | ESE | 86 | 1010 |
| 14:00 | 19:00 | 26.6°C | 28°C | 5.92 | 6.7 | E | 88 | 1009 |
| 15:00 | 20:00 | 26.3°C | 27°C | 13.81 | 7.4 | ENE | 87 | 1008 |
| 16:00 | 21:00 | 25.9°C | 27.8°C | 12.01 | 5.6 | E | 90 | 1007 |
| 17:00 | 22:00 | 26.3°C | 29.3°C | 2.74 | 4.6 | E | 91 | 1009 |
| 18:00 | 23:00 | 26.7°C | 29.2°C | 0.31 | 5.4 | E | 89 | 1008 |
| 19:00 | 00:00 | 26°C | 28.2°C | 0.99 | 5.6 | E | 91 | 1009 |
| 20:00 | 01:00 | 26°C | 28.1°C | 0.71 | 5.8 | E | 92 | 1009 |
| 21:00 | 02:00 | 26°C | 28.3°C | 0.87 | 5.6 | ESE | 92 | 1008 |
| 22:00 | 03:00 | 26°C | 27.7°C | 1.55 | 6 | SE | 90 | 1009 |
| 23:00 | 04:00 | 26°C | 27.7°C | 0.79 | 6.1 | SE | 91 | 1009 |
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
- Gretna — 30.000°, -90.000°, ERA5 grid cell center, 10.8 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 Gretna 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 Gretna, United States (30.00°N, 90.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Gretna, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Gretna, 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 Gretna, 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.