Home / Sammamish / 10 December 2025
Sammamish
United States · 10 December 2025
← 9 December 202511 December 2025 →
Average
12.6°C
low 10.9° · high 13.9°
Rainfall
81.5mm
rain recorded
Wind
6m/s
daily average
Humidity
96.4%
daily average
Cloud
100%
cover
Pressure
1012hPa
daily average
The temperature ranged from 10.9°C around 00:00 to 13.9°C around 17:00. Rain was recorded across 24 hours, from around 00:00 to 23:00 (81.6mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
99th percentile
Low temperature
100th percentile
Rainfall
100th percentile
Wind
99th 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 4.3°C, versus 12.6°C on this specific day.
Sun & daylight
Sunrise
07:46
Sunset
16:15
Day length
8h 30m
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 | 08:00 | 10.9 | 7.7 | 3.56 | 4.8 | S | 98 | 1013 |
| 01:00 | 09:00 | 11 | 7.5 | 3.62 | 5.4 | S | 99 | 1012 |
| 02:00 | 10:00 | 11.6 | 8.4 | 2.86 | 5.2 | S | 99 | 1012 |
| 03:00 | 11:00 | 11.7 | 8.6 | 2.95 | 5.1 | SSW | 99 | 1012 |
| 04:00 | 12:00 | 11.8 | 8.5 | 3.7 | 5.4 | SSW | 99 | 1012 |
| 05:00 | 13:00 | 11.6 | 8.1 | 3.72 | 5.6 | SSW | 99 | 1011 |
| 06:00 | 14:00 | 11.4 | 7.7 | 3.29 | 6 | SSW | 99 | 1012 |
| 07:00 | 15:00 | 11.5 | 7.6 | 3.43 | 6.2 | SSW | 99 | 1012 |
| 08:00 | 16:00 | 11.5 | 7.7 | 4.09 | 6 | SSW | 98 | 1012 |
| 09:00 | 17:00 | 11.8 | 8.4 | 4.96 | 5.6 | SSW | 99 | 1013 |
| 10:00 | 18:00 | 12.1 | 8.9 | 4.5 | 5.5 | SSW | 98 | 1013 |
| 11:00 | 19:00 | 12.4 | 8.9 | 4.19 | 5.9 | SSW | 98 | 1013 |
| 12:00 | 20:00 | 13.1 | 9.3 | 4.38 | 6.6 | SSW | 97 | 1012 |
| 13:00 | 21:00 | 13.4 | 9.3 | 3.71 | 7 | SSW | 96 | 1012 |
| 14:00 | 22:00 | 13.6 | 10.1 | 3.74 | 6.3 | SSW | 96 | 1012 |
| 15:00 | 23:00 | 13.9 | 10.3 | 3.59 | 6.5 | SSW | 95 | 1012 |
| 16:00 | 00:00 | 13.8 | 10 | 3.19 | 6.8 | SSW | 94 | 1012 |
| 17:00 | 01:00 | 13.9 | 10.2 | 2.74 | 6.6 | SSW | 94 | 1012 |
| 18:00 | 02:00 | 13.7 | 10 | 2.53 | 6.5 | SSW | 94 | 1012 |
| 19:00 | 03:00 | 13.6 | 9.8 | 2.48 | 6.6 | SSW | 94 | 1012 |
| 20:00 | 04:00 | 13.5 | 9.6 | 2.29 | 6.7 | SSW | 94 | 1013 |
| 21:00 | 05:00 | 13.5 | 9.7 | 2.47 | 6.5 | SSW | 93 | 1013 |
| 22:00 | 06:00 | 13.6 | 10.2 | 2.78 | 5.9 | SW | 93 | 1014 |
| 23:00 | 07:00 | 13.6 | 10.6 | 2.78 | 5.2 | SW | 92 | 1014 |
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
- Sammamish — 47.750°, -122.000°, ERA5 grid cell center, 13.5 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- The hourly and daily record for 10 December 2025 specifically — not a monthly average. See the Sammamish 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 (2026-07-16). Historical climate data for Sammamish, United States (47.75°N, 122.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Sammamish, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Sammamish, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 16, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Sammamish, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-16},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.