Home / Thayer / 18 August 2021
Thayer
United States · 18 August 2021
← 17 August 202119 August 2021 →
Average
22.8°C
low 21.2°C · high 24.2°C
Rainfall
15.6mm
rain recorded
Wind
1.6m/s
daily average
Humidity
89.1%
daily average
Cloud
94%
cover
Pressure
1017hPa
daily average
The temperature ranged from 21.2°C around 09:00 to 24.2°C around 19:00. Rain was recorded across 15 hours, from around 07:00 to 22:00 (15.6mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
2th percentile
Low temperature
53th percentile
Rainfall
92th percentile
Wind
18th 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 25.4°C, versus 22.8°C on this specific day.
Sun & daylight
Sunrise
06:26
Sunset
19:52
Day length
13h 26m
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 | 23.6°C | 24.6°C | 0 | 2.1 | SSE | 69 | 1015 |
| 01:00 | 06:00 | 23.1°C | 24.3°C | 0 | 1.9 | SSE | 70 | 1015 |
| 02:00 | 07:00 | 22.8°C | 24.5°C | 0 | 1.4 | SE | 74 | 1016 |
| 03:00 | 08:00 | 22.9°C | 24.8°C | 0 | 1.1 | ESE | 72 | 1015 |
| 04:00 | 09:00 | 23°C | 24.8°C | 0 | 1.4 | E | 73 | 1016 |
| 05:00 | 10:00 | 21.7°C | 23°C | 0 | 2 | ESE | 79 | 1016 |
| 06:00 | 11:00 | 21.7°C | 22.7°C | 0.07 | 2.3 | SE | 79 | 1017 |
| 07:00 | 12:00 | 21.6°C | 23.1°C | 0.36 | 1.7 | SSE | 80 | 1017 |
| 08:00 | 13:00 | 21.3°C | 23.7°C | 0.68 | 1.2 | S | 87 | 1018 |
| 09:00 | 14:00 | 21.2°C | 24.7°C | 1.12 | 0.6 | W | 96 | 1019 |
| 10:00 | 15:00 | 21.9°C | 26.2°C | 2.65 | 0.2 | SW | 97 | 1019 |
| 11:00 | 16:00 | 22.2°C | 26°C | 2.91 | 1 | E | 98 | 1019 |
| 12:00 | 17:00 | 23.3°C | 27.1°C | 2.44 | 1.6 | ESE | 95 | 1019 |
| 13:00 | 18:00 | 24.2°C | 28.3°C | 1.4 | 1.8 | ESE | 94 | 1019 |
| 14:00 | 19:00 | 23.1°C | 26.7°C | 0.82 | 2 | ESE | 96 | 1019 |
| 15:00 | 20:00 | 23°C | 26.6°C | 0.97 | 1.7 | ESE | 95 | 1018 |
| 16:00 | 21:00 | 23.2°C | 26.9°C | 0.69 | 2 | SE | 97 | 1018 |
| 17:00 | 22:00 | 22.8°C | 26.6°C | 0.45 | 1.8 | E | 100 | 1017 |
| 18:00 | 23:00 | 23.6°C | 27.7°C | 0.1 | 2 | ESE | 98 | 1017 |
| 19:00 | 00:00 | 24.2°C | 28.2°C | 0.02 | 2 | ESE | 95 | 1017 |
| 20:00 | 01:00 | 24.1°C | 28.4°C | 0.19 | 1.8 | ESE | 96 | 1018 |
| 21:00 | 02:00 | 23.6°C | 27.6°C | 0.46 | 2.1 | ESE | 98 | 1018 |
| 22:00 | 03:00 | 23.1°C | 26.9°C | 0.22 | 2.2 | E | 100 | 1019 |
| 23:00 | 04:00 | 23.1°C | 27.1°C | 0.09 | 1.7 | ESE | 98 | 1019 |
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
- Thayer — 36.500°, -91.500°, ERA5 grid cell center, 4.4 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 18 August 2021 specifically — not a monthly average. See the Thayer 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 Thayer, United States (36.50°N, 91.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Thayer, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Thayer, 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 Thayer, 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.