Home / Gray Summit / 31 August 2021
Gray Summit
United States · 31 August 2021
← 30 August 20211 September 2021 →
Average
23.8°C
low 21.3° · high 28.5°
Rainfall
1.9mm
rain recorded
Wind
1.2m/s
daily average
Humidity
89%
daily average
Cloud
71%
cover
Pressure
1008hPa
daily average
The temperature ranged from 21.3°C around 07:00 to 28.5°C around 16:00. Rain was recorded across 6 hours, from around 10:00 to 21:00 (1.9mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
49th percentile
Low temperature
73th percentile
Rainfall
78th 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 23.4°C, versus 23.8°C on this specific day.
Sun & daylight
Sunrise
06:31
Sunset
19:33
Day length
13h 2m
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 | 21.7 | 24.8 | 0 | 1.8 | ENE | 97 | 1011 |
| 01:00 | 06:00 | 21.7 | 24.7 | 0 | 1.9 | E | 99 | 1010 |
| 02:00 | 07:00 | 22 | 25.3 | 0 | 1.7 | E | 97 | 1010 |
| 03:00 | 08:00 | 21.5 | 24.4 | 0 | 1.7 | ESE | 96 | 1009 |
| 04:00 | 09:00 | 21.7 | 25.3 | 0 | 0.9 | SE | 96 | 1009 |
| 05:00 | 10:00 | 21.4 | 24.9 | 0 | 0.9 | SSW | 97 | 1008 |
| 06:00 | 11:00 | 21.4 | 24.7 | 0 | 1.1 | NW | 97 | 1009 |
| 07:00 | 12:00 | 21.3 | 24.4 | 0.01 | 1.3 | NNE | 96 | 1009 |
| 08:00 | 13:00 | 21.4 | 24.4 | 0.03 | 1.3 | NNE | 95 | 1009 |
| 09:00 | 14:00 | 21.6 | 24.8 | 0.06 | 1.1 | N | 95 | 1010 |
| 10:00 | 15:00 | 23.1 | 26.9 | 0.12 | 1.3 | N | 93 | 1010 |
| 11:00 | 16:00 | 24 | 28.1 | 0.05 | 1.1 | NNE | 91 | 1009 |
| 12:00 | 17:00 | 25 | 29.2 | 0.03 | 1.2 | NNE | 87 | 1009 |
| 13:00 | 18:00 | 25.9 | 30.3 | 0.04 | 0.8 | NNE | 82 | 1008 |
| 14:00 | 19:00 | 27.3 | 31.8 | 0.12 | 0.8 | E | 76 | 1007 |
| 15:00 | 20:00 | 28.1 | 32.3 | 0.04 | 0.7 | E | 69 | 1006 |
| 16:00 | 21:00 | 28.5 | 32.7 | 0.02 | 0.3 | NNW | 66 | 1006 |
| 17:00 | 22:00 | 27.3 | 31.4 | 0.38 | 0.8 | ESE | 72 | 1005 |
| 18:00 | 23:00 | 26.5 | 31.6 | 0.59 | 0.1 | NNE | 81 | 1005 |
| 19:00 | 00:00 | 25.8 | 30.5 | 0.11 | 0.6 | NNE | 84 | 1005 |
| 20:00 | 01:00 | 25.2 | 29.6 | 0.06 | 1.3 | NNW | 89 | 1005 |
| 21:00 | 02:00 | 23.9 | 27.8 | 0.18 | 1.7 | NNW | 92 | 1006 |
| 22:00 | 03:00 | 22.4 | 25.5 | 0.05 | 1.8 | N | 95 | 1007 |
| 23:00 | 04:00 | 21.9 | 25.1 | 0.01 | 1.4 | N | 95 | 1007 |
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
- Gray Summit — 38.500°, -90.750°, ERA5 grid cell center, 5.9 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 31 August 2021 specifically — not a monthly average. See the Gray Summit 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 Gray Summit, United States (38.50°N, 90.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Gray Summit, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Gray Summit, 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 Gray Summit, 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.