Home / Sonora / 20 October 2017
Sonora
United States · 20 October 2017
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Average
11.8°C
low 8.7°C · high 15.3°C
Rainfall
10.8mm
rain recorded
Wind
2.7m/s
daily average
Humidity
70.8%
daily average
Cloud
72%
cover
Pressure
1017hPa
daily average
The temperature ranged from 8.7°C around 23:00 to 15.3°C around 14:00. Rain was recorded across 7 hours, from around 00:00 to 06:00 (10.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
4th percentile
Low temperature
45th percentile
Rainfall
94th percentile
Wind
90th 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 15.9°C, versus 11.8°C on this specific day.
Sun & daylight
Sunrise
07:15
Sunset
18:17
Day length
11h 1m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Los_Angeles.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 07:00 | 14.3°C | 12.8°C | 0.66 | 2.8 | SSE | 82 | 1012 |
| 01:00 | 08:00 | 13.2°C | 10.7°C | 0.79 | 4 | S | 87 | 1012 |
| 02:00 | 09:00 | 12.9°C | 9.9°C | 1.43 | 4.7 | SSW | 89 | 1012 |
| 03:00 | 10:00 | 11°C | 7.2°C | 3.79 | 5.5 | WSW | 94 | 1014 |
| 04:00 | 11:00 | 9.7°C | 6.2°C | 2.97 | 4.5 | WNW | 92 | 1015 |
| 05:00 | 12:00 | 9.2°C | 7.1°C | 0.88 | 2.3 | NNW | 91 | 1016 |
| 06:00 | 13:00 | 9.3°C | 8°C | 0.11 | 1.1 | NNE | 91 | 1016 |
| 07:00 | 14:00 | 9.2°C | 8.3°C | 0.03 | 0.5 | W | 92 | 1017 |
| 08:00 | 15:00 | 9.7°C | 7.9°C | 0.01 | 1.4 | WNW | 82 | 1017 |
| 09:00 | 16:00 | 10.2°C | 8.3°C | 0 | 1.6 | NW | 79 | 1018 |
| 10:00 | 17:00 | 11.4°C | 9.3°C | 0 | 1.8 | WNW | 73 | 1018 |
| 11:00 | 18:00 | 12.7°C | 10.4°C | 0.02 | 2 | WNW | 64 | 1018 |
| 12:00 | 19:00 | 13.6°C | 11°C | 0.07 | 2.3 | W | 60 | 1018 |
| 13:00 | 20:00 | 14.3°C | 11.7°C | 0 | 2.1 | W | 55 | 1018 |
| 14:00 | 21:00 | 15.3°C | 12°C | 0 | 2.5 | W | 43 | 1018 |
| 15:00 | 22:00 | 15.2°C | 11.5°C | 0 | 3.4 | WNW | 47 | 1018 |
| 16:00 | 23:00 | 14.5°C | 10.7°C | 0 | 3.5 | WNW | 48 | 1017 |
| 17:00 | 00:00 | 14°C | 9.7°C | 0 | 3.9 | WNW | 48 | 1018 |
| 18:00 | 01:00 | 13.5°C | 9.4°C | 0 | 3.6 | WNW | 48 | 1018 |
| 19:00 | 02:00 | 12.3°C | 8.6°C | 0 | 3 | NW | 51 | 1018 |
| 20:00 | 03:00 | 9.9°C | 6.8°C | 0 | 2.7 | NNW | 68 | 1019 |
| 21:00 | 04:00 | 9.4°C | 6.4°C | 0 | 2.3 | NNW | 70 | 1019 |
| 22:00 | 05:00 | 8.9°C | 6.1°C | 0 | 2.2 | NNW | 73 | 1019 |
| 23:00 | 06:00 | 8.7°C | 5.9°C | 0 | 2.2 | NNW | 75 | 1020 |
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
- Sonora — 38.000°, -120.500°, ERA5 grid cell center, 10.5 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- The hourly and daily record for 20 October 2017 specifically — not a monthly average. See the Sonora 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 (2026-07-20). Historical climate data for Sonora, United States (38.00°N, 120.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Sonora, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Sonora, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Sonora, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-20},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.