Home / Cotati / 25 October 2017
Cotati
United States · 25 October 2017
← 24 October 201726 October 2017 →
Average
19.2°C
low 11.3° · high 27.3°
Rainfall
0mm
dry day
Wind
1.2m/s
daily average
Humidity
57.7%
daily average
Cloud
13%
cover
Pressure
1014hPa
daily average
The temperature ranged from 11.3°C around 06:00 to 27.3°C around 14:00. 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
96th percentile
Low temperature
70th percentile
Rainfall
73th percentile
Wind
9th 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 14.9°C, versus 19.2°C on this specific day.
Sun & daylight
Sunrise
07:30
Sunset
18:19
Day length
10h 49m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Los_Angeles.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 07:00 | 18.5 | 17.4 | 0 | 1.4 | NNW | 56 | 1017 |
| 01:00 | 08:00 | 16.8 | 15.5 | 0 | 1.7 | N | 60 | 1017 |
| 02:00 | 09:00 | 14.6 | 13.2 | 0 | 1.5 | NNE | 67 | 1016 |
| 03:00 | 10:00 | 12.9 | 11.9 | 0 | 1.3 | NE | 80 | 1016 |
| 04:00 | 11:00 | 12.2 | 10.9 | 0 | 1.4 | ENE | 80 | 1016 |
| 05:00 | 12:00 | 12.1 | 10.7 | 0 | 1.5 | ENE | 80 | 1015 |
| 06:00 | 13:00 | 11.3 | 10.2 | 0 | 1 | NE | 82 | 1015 |
| 07:00 | 14:00 | 11.3 | 10.3 | 0 | 1 | NE | 83 | 1015 |
| 08:00 | 15:00 | 12.4 | 11.1 | 0 | 0.8 | NE | 70 | 1015 |
| 09:00 | 16:00 | 15.3 | 14.2 | 0 | 0.8 | NE | 62 | 1016 |
| 10:00 | 17:00 | 20 | 19.4 | 0 | 0.5 | E | 48 | 1016 |
| 11:00 | 18:00 | 22.9 | 21.8 | 0 | 0.7 | ESE | 37 | 1016 |
| 12:00 | 19:00 | 24.8 | 24.1 | 0 | 0.6 | SE | 36 | 1015 |
| 13:00 | 20:00 | 26 | 25.8 | 0 | 0.3 | S | 36 | 1014 |
| 14:00 | 21:00 | 27.3 | 26.2 | 0 | 0.9 | WSW | 30 | 1013 |
| 15:00 | 22:00 | 27.2 | 26.3 | 0 | 1.8 | WSW | 36 | 1012 |
| 16:00 | 23:00 | 27.1 | 26.5 | 0 | 1.8 | W | 39 | 1012 |
| 17:00 | 00:00 | 26.3 | 26.1 | 0 | 1.6 | W | 43 | 1012 |
| 18:00 | 01:00 | 23.3 | 22.8 | 0 | 1.8 | W | 50 | 1011 |
| 19:00 | 02:00 | 21.6 | 20.2 | 0 | 1.8 | W | 45 | 1011 |
| 20:00 | 03:00 | 20 | 19.5 | 0 | 1.8 | WNW | 61 | 1011 |
| 21:00 | 04:00 | 19.3 | 19.1 | 0 | 1.6 | NW | 66 | 1011 |
| 22:00 | 05:00 | 18.7 | 18.8 | 0 | 1 | NNW | 67 | 1012 |
| 23:00 | 06:00 | 18.1 | 18.1 | 0 | 1.1 | NNW | 69 | 1011 |
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
- Cotati — 38.250°, -122.750°, ERA5 grid cell center, 9.3 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- The hourly and daily record for 25 October 2017 specifically — not a monthly average. See the Cotati 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 (2026-07-18). Historical climate data for Cotati, United States (38.25°N, 122.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Cotati, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Cotati, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Cotati, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-18},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.