Home / Tucson / 12 September 2016
Tucson
United States · 12 September 2016
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Average
25.7°C
low 22°C · high 30.3°C
Rainfall
0.5mm
dry day
Wind
2.4m/s
daily average
Humidity
60%
daily average
Cloud
25%
cover
Pressure
1012hPa
daily average
The temperature ranged from 22°C around 03:00 to 30.3°C around 15:00. Rain was recorded across 2 hours, from around 09:00 to 11:00 (0.5mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
1th percentile
Low temperature
21th percentile
Rainfall
84th percentile
Wind
54th 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 29.6°C, versus 25.7°C on this specific day.
Sun & daylight
Sunrise
06:06
Sunset
18:33
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 | 23°C | 23.8°C | 0 | 2.4 | SE | 70 | 1013 |
| 01:00 | 08:00 | 23.3°C | 23.9°C | 0 | 2.5 | SE | 69 | 1013 |
| 02:00 | 09:00 | 22.5°C | 23°C | 0 | 2.6 | SE | 71 | 1013 |
| 03:00 | 10:00 | 22°C | 22.5°C | 0 | 3 | SE | 75 | 1012 |
| 04:00 | 11:00 | 22.5°C | 23.7°C | 0 | 2 | SE | 74 | 1013 |
| 05:00 | 12:00 | 23°C | 24.5°C | 0 | 1.7 | SE | 72 | 1013 |
| 06:00 | 13:00 | 23.5°C | 24.7°C | 0 | 2.1 | SE | 70 | 1013 |
| 07:00 | 14:00 | 23.7°C | 24.5°C | 0 | 2.3 | SE | 66 | 1014 |
| 08:00 | 15:00 | 25.4°C | 26.9°C | 0 | 2.6 | SSE | 69 | 1014 |
| 09:00 | 16:00 | 26.3°C | 28°C | 0.1 | 2.9 | S | 68 | 1014 |
| 10:00 | 17:00 | 27.8°C | 29.7°C | 0.08 | 2.3 | SSW | 61 | 1014 |
| 11:00 | 18:00 | 28.7°C | 30.8°C | 0.14 | 1.5 | SW | 55 | 1014 |
| 12:00 | 19:00 | 29.2°C | 30.2°C | 0.06 | 1.7 | WSW | 47 | 1013 |
| 13:00 | 20:00 | 29.7°C | 30.4°C | 0.05 | 2 | WSW | 44 | 1012 |
| 14:00 | 21:00 | 29.9°C | 30.3°C | 0.01 | 2.4 | WSW | 44 | 1011 |
| 15:00 | 22:00 | 30.3°C | 29.3°C | 0 | 3.4 | W | 38 | 1010 |
| 16:00 | 23:00 | 30.1°C | 29°C | 0.06 | 3.4 | W | 38 | 1010 |
| 17:00 | 00:00 | 29.4°C | 28.2°C | 0.04 | 3.6 | WNW | 39 | 1010 |
| 18:00 | 01:00 | 28.7°C | 29.6°C | 0 | 1.1 | SSW | 44 | 1010 |
| 19:00 | 02:00 | 26.3°C | 26.5°C | 0 | 2.5 | SE | 53 | 1011 |
| 20:00 | 03:00 | 23.6°C | 24°C | 0 | 2.4 | SE | 64 | 1011 |
| 21:00 | 04:00 | 23.2°C | 23.6°C | 0 | 2.5 | ESE | 66 | 1012 |
| 22:00 | 05:00 | 23°C | 23.7°C | 0 | 2.6 | ESE | 71 | 1012 |
| 23:00 | 06:00 | 22.4°C | 22.9°C | 0 | 2.7 | SE | 72 | 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
- Tucson — 32.250°, -111.000°, ERA5 grid cell center, 7.6 km from requested point
- Time zone
- America/Phoenix
- What's shown here
- The hourly and daily record for 12 September 2016 specifically — not a monthly average. See the Tucson 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 Tucson, United States (32.25°N, 111.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Tucson, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Tucson, 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 Tucson, 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.