Home / Mill Valley / 25 October 2017
Mill Valley
United States · 25 October 2017
← 24 October 201726 October 2017 →
Average
19.9°C
low 13.8°C · high 26.6°C
Rainfall
0mm
dry day
Wind
1.7m/s
daily average
Humidity
53.5%
daily average
Cloud
9%
cover
Pressure
1014hPa
daily average
The temperature ranged from 13.8°C around 07:00 to 26.6°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
86th percentile
Rainfall
72th percentile
Wind
22th 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 15.4°C, versus 19.9°C on this specific day.
Sun & daylight
Sunrise
07:28
Sunset
18:18
Day length
10h 50m
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 | 18.8°C | 17.2°C | 0 | 2.4 | NNW | 56 | 1017 |
| 01:00 | 08:00 | 18.3°C | 16.5°C | 0 | 2.5 | NNW | 57 | 1016 |
| 02:00 | 09:00 | 17.3°C | 15.6°C | 0 | 2.1 | N | 58 | 1016 |
| 03:00 | 10:00 | 15.9°C | 15.3°C | 0 | 1 | ESE | 70 | 1016 |
| 04:00 | 11:00 | 15.3°C | 14.4°C | 0 | 1.2 | ENE | 70 | 1016 |
| 05:00 | 12:00 | 15.2°C | 14.2°C | 0 | 1.4 | NE | 70 | 1015 |
| 06:00 | 13:00 | 14°C | 12.9°C | 0 | 1.4 | NE | 73 | 1015 |
| 07:00 | 14:00 | 13.8°C | 12.6°C | 0 | 1.6 | NE | 74 | 1015 |
| 08:00 | 15:00 | 14.2°C | 12.4°C | 0 | 1.5 | NE | 62 | 1015 |
| 09:00 | 16:00 | 16.5°C | 15.3°C | 0 | 1 | NE | 56 | 1016 |
| 10:00 | 17:00 | 19.6°C | 18.6°C | 0 | 0.9 | NE | 48 | 1016 |
| 11:00 | 18:00 | 22°C | 20.3°C | 0 | 1.6 | ENE | 39 | 1016 |
| 12:00 | 19:00 | 24.2°C | 22.4°C | 0 | 2 | NE | 36 | 1015 |
| 13:00 | 20:00 | 25.8°C | 24.4°C | 0 | 1.7 | NE | 35 | 1014 |
| 14:00 | 21:00 | 26.6°C | 25.2°C | 0 | 1.3 | N | 30 | 1013 |
| 15:00 | 22:00 | 26.2°C | 25.8°C | 0 | 1 | NW | 38 | 1012 |
| 16:00 | 23:00 | 26.3°C | 25.5°C | 0 | 1.6 | NW | 38 | 1012 |
| 17:00 | 00:00 | 26.2°C | 24.8°C | 0 | 2 | WNW | 35 | 1011 |
| 18:00 | 01:00 | 25.6°C | 23.4°C | 0 | 2.1 | WNW | 30 | 1011 |
| 19:00 | 02:00 | 22.2°C | 20.2°C | 0 | 2 | W | 39 | 1011 |
| 20:00 | 03:00 | 19.8°C | 19°C | 0 | 2.1 | WNW | 61 | 1011 |
| 21:00 | 04:00 | 18.6°C | 18°C | 0 | 2 | WNW | 68 | 1011 |
| 22:00 | 05:00 | 17.9°C | 17.5°C | 0 | 1.7 | WNW | 70 | 1011 |
| 23:00 | 06:00 | 17.4°C | 17°C | 0 | 1.6 | WNW | 72 | 1011 |
Nearby cities
Need this verified for an official or legal purpose? Request a weather verification report.
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
- Mill Valley — 38.000°, -122.500°, ERA5 grid cell center, 11.2 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 Mill Valley 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 Mill Valley, United States (38.00°N, 122.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Mill Valley, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Mill Valley, 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 Mill Valley, 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.