Home / Willcox / 12 September 2021
Willcox
United States · 12 September 2021
← 11 September 202113 September 2021 →
Average
27.5°C
low 20.4°C · high 33.5°C
Rainfall
0mm
dry day
Wind
0.9m/s
daily average
Humidity
23.9%
daily average
Cloud
9%
cover
Pressure
1013hPa
daily average
The temperature ranged from 20.4°C around 07:00 to 33.5°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
77th percentile
Low temperature
67th percentile
Rainfall
64th 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 25.2°C, versus 27.5°C on this specific day.
Sun & daylight
Sunrise
06:01
Sunset
18:28
Day length
12h 27m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Phoenix.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 07:00 | 25.5°C | 23.6°C | 0 | 0.7 | NE | 24 | 1014 |
| 01:00 | 08:00 | 24.8°C | 22.9°C | 0 | 0.7 | NE | 25 | 1014 |
| 02:00 | 09:00 | 23.5°C | 21.9°C | 0 | 0.7 | NNE | 30 | 1014 |
| 03:00 | 10:00 | 21.3°C | 20°C | 0 | 0.2 | WNW | 34 | 1015 |
| 04:00 | 11:00 | 21.4°C | 20°C | 0 | 0.4 | NW | 35 | 1014 |
| 05:00 | 12:00 | 20.9°C | 19.5°C | 0 | 0.3 | NNW | 34 | 1015 |
| 06:00 | 13:00 | 21°C | 19.7°C | 0 | 0.2 | NE | 34 | 1015 |
| 07:00 | 14:00 | 20.4°C | 18.9°C | 0 | 0.4 | ESE | 35 | 1016 |
| 08:00 | 15:00 | 24.1°C | 22.5°C | 0 | 0.4 | ENE | 28 | 1016 |
| 09:00 | 16:00 | 27.2°C | 25.4°C | 0 | 1 | ENE | 24 | 1016 |
| 10:00 | 17:00 | 29.1°C | 26.6°C | 0 | 1.8 | E | 21 | 1016 |
| 11:00 | 18:00 | 30.1°C | 27.4°C | 0 | 1.9 | E | 19 | 1015 |
| 12:00 | 19:00 | 30.9°C | 28.5°C | 0 | 1.8 | E | 20 | 1014 |
| 13:00 | 20:00 | 32.6°C | 30°C | 0 | 1.9 | E | 17 | 1013 |
| 14:00 | 21:00 | 33.3°C | 30.6°C | 0 | 1.8 | E | 15 | 1012 |
| 15:00 | 22:00 | 33.4°C | 31°C | 0 | 1.4 | ENE | 15 | 1012 |
| 16:00 | 23:00 | 33.5°C | 31.1°C | 0 | 1.4 | ENE | 15 | 1011 |
| 17:00 | 00:00 | 33.4°C | 31.3°C | 0 | 0.9 | ENE | 15 | 1011 |
| 18:00 | 01:00 | 32.9°C | 31.2°C | 0 | 0.5 | NE | 16 | 1011 |
| 19:00 | 02:00 | 31.3°C | 30.2°C | 0 | 0.4 | NNE | 21 | 1011 |
| 20:00 | 03:00 | 27.5°C | 26.1°C | 0 | 0.5 | NW | 25 | 1011 |
| 21:00 | 04:00 | 28.2°C | 26.3°C | 0 | 0.7 | NW | 21 | 1012 |
| 22:00 | 05:00 | 27°C | 25.1°C | 0 | 1 | WNW | 24 | 1012 |
| 23:00 | 06:00 | 25.8°C | 24°C | 0 | 1.1 | WNW | 27 | 1012 |
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
- Willcox — 32.250°, -109.750°, ERA5 grid cell center, 7.7 km from requested point
- Time zone
- America/Phoenix
- What's shown here
- The hourly and daily record for 12 September 2021 specifically — not a monthly average. See the Willcox 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 Willcox, United States (32.25°N, 109.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Willcox, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Willcox, 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 Willcox, 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.