Home / Spring / 21 August 2023
Spring
United States · 21 August 2023
← 20 August 202322 August 2023 →
Average
32.7°C
low 26.3°C · high 38.4°C
Rainfall
0.2mm
dry day
Wind
2.8m/s
daily average
Humidity
55.9%
daily average
Cloud
68%
cover
Pressure
1015hPa
daily average
The temperature ranged from 26.3°C around 06:00 to 38.4°C around 16:00. Rain was recorded for one hour, around 18:00 (0.2mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
100th percentile
Low temperature
96th percentile
Rainfall
27th percentile
Wind
81th 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 32.7°C on this specific day.
Sun & daylight
Sunrise
06:52
Sunset
19:57
Day length
13h 4m
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 | 31.2°C | 33.5°C | 0 | 3.4 | SSE | 58 | 1015 |
| 01:00 | 06:00 | 30.7°C | 33.4°C | 0 | 3 | S | 60 | 1015 |
| 02:00 | 07:00 | 30.3°C | 33°C | 0 | 2.8 | S | 61 | 1015 |
| 03:00 | 08:00 | 29.9°C | 33.4°C | 0 | 2.2 | S | 64 | 1015 |
| 04:00 | 09:00 | 28.9°C | 33.3°C | 0 | 1.4 | SSE | 71 | 1015 |
| 05:00 | 10:00 | 26.4°C | 30.8°C | 0 | 1.1 | SSW | 81 | 1015 |
| 06:00 | 11:00 | 26.3°C | 31°C | 0 | 0.9 | SSW | 82 | 1015 |
| 07:00 | 12:00 | 26.7°C | 31.7°C | 0 | 0.7 | ESE | 82 | 1015 |
| 08:00 | 13:00 | 27.7°C | 32.5°C | 0 | 1.3 | ESE | 80 | 1016 |
| 09:00 | 14:00 | 30.1°C | 34°C | 0 | 1.7 | E | 65 | 1016 |
| 10:00 | 15:00 | 33.9°C | 37.1°C | 0 | 1.9 | ENE | 49 | 1016 |
| 11:00 | 16:00 | 35.7°C | 37.7°C | 0 | 2.5 | ENE | 41 | 1016 |
| 12:00 | 17:00 | 37.1°C | 38.5°C | 0 | 3.4 | E | 38 | 1016 |
| 13:00 | 18:00 | 37.6°C | 38.3°C | 0 | 4.2 | E | 36 | 1015 |
| 14:00 | 19:00 | 38°C | 38.3°C | 0 | 4.7 | E | 35 | 1015 |
| 15:00 | 20:00 | 38.4°C | 38.2°C | 0 | 4.9 | E | 32 | 1014 |
| 16:00 | 21:00 | 38.4°C | 38.4°C | 0 | 5 | ESE | 33 | 1014 |
| 17:00 | 22:00 | 37.7°C | 39.5°C | 0 | 3.5 | ESE | 38 | 1014 |
| 18:00 | 23:00 | 35.3°C | 37.3°C | 0.2 | 3.9 | SE | 46 | 1014 |
| 19:00 | 00:00 | 34.5°C | 36.5°C | 0 | 4 | SE | 49 | 1014 |
| 20:00 | 01:00 | 33.7°C | 36.1°C | 0 | 4 | SSE | 54 | 1015 |
| 21:00 | 02:00 | 32.9°C | 36.1°C | 0 | 3.2 | SSE | 58 | 1015 |
| 22:00 | 03:00 | 31.8°C | 36.1°C | 0 | 2.2 | SE | 63 | 1016 |
| 23:00 | 04:00 | 31.3°C | 36°C | 0 | 1.6 | SE | 66 | 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
- Spring — 30.000°, -95.500°, ERA5 grid cell center, 11.9 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 Spring 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 Spring, United States (30.00°N, 95.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Spring, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Spring, 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 Spring, 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.