Ames
United States · 31 August 2021
← 30 August 20211 September 2021 →
Average
19.9°C
low 17.2° · high 23.1°
Rainfall
18.1mm
rain recorded
Wind
2.6m/s
daily average
Humidity
79.8%
daily average
Cloud
62%
cover
Pressure
1010hPa
daily average
The temperature ranged from 17.2°C around 08:00 to 23.1°C around 16:00. Rain was recorded across 14 hours, from around 04:00 to 17:00 (18.1mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
16th percentile
Low temperature
64th percentile
Rainfall
93th percentile
Wind
24th 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 21.3°C, versus 19.9°C on this specific day.
Sun & daylight
Sunrise
06:38
Sunset
19:48
Day length
13h 10m
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 | 21.2 | 20.9 | 0 | 2.8 | ENE | 69 | 1011 |
| 01:00 | 06:00 | 19.7 | 19.4 | 0.02 | 3 | E | 76 | 1011 |
| 02:00 | 07:00 | 20.3 | 19.9 | 0.01 | 3 | E | 73 | 1010 |
| 03:00 | 08:00 | 19.9 | 19.6 | 0 | 2.5 | E | 73 | 1010 |
| 04:00 | 09:00 | 19.2 | 19.3 | 0.32 | 2.1 | ENE | 76 | 1010 |
| 05:00 | 10:00 | 18.4 | 19.3 | 1.71 | 1.4 | N | 84 | 1011 |
| 06:00 | 11:00 | 18.3 | 19 | 2.16 | 1.9 | NE | 86 | 1010 |
| 07:00 | 12:00 | 18 | 18.4 | 0.4 | 2.3 | ENE | 90 | 1010 |
| 08:00 | 13:00 | 17.2 | 17.7 | 0.33 | 2.3 | ENE | 94 | 1010 |
| 09:00 | 14:00 | 17.6 | 18.1 | 0.23 | 2.2 | ENE | 93 | 1010 |
| 10:00 | 15:00 | 19.7 | 20.3 | 0.68 | 2.6 | E | 85 | 1010 |
| 11:00 | 16:00 | 19.4 | 20.1 | 1.55 | 2.6 | ENE | 88 | 1010 |
| 12:00 | 17:00 | 19.4 | 20 | 1.26 | 2.9 | ENE | 90 | 1010 |
| 13:00 | 18:00 | 20 | 21.2 | 0.72 | 2.4 | NE | 89 | 1010 |
| 14:00 | 19:00 | 21 | 22.2 | 4.5 | 2.2 | ENE | 83 | 1010 |
| 15:00 | 20:00 | 22 | 22.7 | 2.95 | 2.7 | ENE | 76 | 1009 |
| 16:00 | 21:00 | 23.1 | 23.7 | 1.09 | 2.3 | NE | 68 | 1009 |
| 17:00 | 22:00 | 21.7 | 21.4 | 0.14 | 3.5 | ENE | 72 | 1009 |
| 18:00 | 23:00 | 22.3 | 21.6 | 0 | 3.9 | ENE | 68 | 1010 |
| 19:00 | 00:00 | 22.2 | 21.9 | 0 | 3.3 | E | 68 | 1010 |
| 20:00 | 01:00 | 20.9 | 20.9 | 0 | 2.8 | E | 74 | 1011 |
| 21:00 | 02:00 | 20.5 | 20.7 | 0 | 2.6 | E | 77 | 1012 |
| 22:00 | 03:00 | 18.4 | 18.4 | 0 | 2.6 | E | 83 | 1012 |
| 23:00 | 04:00 | 18.5 | 18.4 | 0 | 2.6 | E | 82 | 1013 |
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
- Ames — 42.000°, -93.500°, ERA5 grid cell center, 10.6 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 Ames 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 (2026-07-17). Historical climate data for Ames, United States (42.00°N, 93.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Ames, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Ames, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Ames, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.