Home / Ackerman / 21 August 2023
Ackerman
United States · 21 August 2023
← 20 August 202322 August 2023 →
Average
30.6°C
low 23.7° · high 37.5°
Rainfall
0mm
dry day
Wind
2m/s
daily average
Humidity
57.7%
daily average
Cloud
4%
cover
Pressure
1018hPa
daily average
The temperature ranged from 23.7°C around 05:00 to 37.5°C around 16:00. No measurable rain was recorded during the day.
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
99th percentile
Low temperature
84th percentile
Rainfall
27th percentile
Wind
56th 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 26.7°C, versus 30.6°C on this specific day.
Sun & daylight
Sunrise
06:23
Sunset
19:36
Day length
13h 12m
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 | 26.8 | 28.8 | 0 | 2.4 | ESE | 67 | 1018 |
| 01:00 | 06:00 | 26.5 | 28.4 | 0 | 2.5 | ESE | 68 | 1018 |
| 02:00 | 07:00 | 26.4 | 28.1 | 0 | 2.6 | ESE | 67 | 1018 |
| 03:00 | 08:00 | 25.8 | 27.5 | 0 | 2.5 | ESE | 68 | 1018 |
| 04:00 | 09:00 | 25.7 | 27.2 | 0 | 2.5 | ESE | 67 | 1018 |
| 05:00 | 10:00 | 23.7 | 26 | 0 | 2.1 | SE | 81 | 1018 |
| 06:00 | 11:00 | 23.9 | 26.4 | 0 | 1.8 | ESE | 80 | 1019 |
| 07:00 | 12:00 | 23.8 | 26.4 | 0 | 1.7 | ESE | 81 | 1019 |
| 08:00 | 13:00 | 26.1 | 29.2 | 0 | 1.5 | SE | 74 | 1020 |
| 09:00 | 14:00 | 28.7 | 32.3 | 0 | 1.3 | ESE | 65 | 1020 |
| 10:00 | 15:00 | 31.8 | 36 | 0 | 0.9 | ESE | 57 | 1020 |
| 11:00 | 16:00 | 33.3 | 37.2 | 0 | 1.3 | ESE | 52 | 1020 |
| 12:00 | 17:00 | 34.6 | 37.9 | 0 | 1.7 | E | 47 | 1019 |
| 13:00 | 18:00 | 35.8 | 38.7 | 0 | 2 | E | 43 | 1019 |
| 14:00 | 19:00 | 36.7 | 39.3 | 0 | 2 | E | 40 | 1018 |
| 15:00 | 20:00 | 37.3 | 39.7 | 0 | 2.2 | E | 38 | 1017 |
| 16:00 | 21:00 | 37.5 | 39.5 | 0 | 2.3 | E | 36 | 1017 |
| 17:00 | 22:00 | 36.7 | 39.1 | 0 | 2.5 | E | 40 | 1017 |
| 18:00 | 23:00 | 35.9 | 38.1 | 0 | 2.3 | E | 40 | 1017 |
| 19:00 | 00:00 | 34.9 | 37.2 | 0 | 2.2 | E | 43 | 1017 |
| 20:00 | 01:00 | 33.2 | 35.7 | 0 | 2.3 | ENE | 48 | 1017 |
| 21:00 | 02:00 | 31.8 | 34.6 | 0 | 2.2 | E | 54 | 1018 |
| 22:00 | 03:00 | 29.8 | 33.1 | 0 | 2.1 | ESE | 64 | 1018 |
| 23:00 | 04:00 | 28.9 | 32.3 | 0 | 2 | ESE | 66 | 1018 |
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
- Ackerman — 33.250°, -89.250°, ERA5 grid cell center, 9.8 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 21 August 2023 specifically — not a monthly average. See the Ackerman 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 (2026-07-18). Historical climate data for Ackerman, United States (33.25°N, 89.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Ackerman, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Ackerman, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Ackerman, 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/}
}Notice something wrong with this data? Report a data issue.