Home / Salem / 18 December 2025
Salem
United States · 18 December 2025
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Average
10.4°C
low 6.8° · high 14.5°
Rainfall
60.8mm
rain recorded
Wind
5.7m/s
daily average
Humidity
89%
daily average
Cloud
100%
cover
Pressure
1006hPa
daily average
The temperature ranged from 6.8°C around 07:00 to 14.5°C around 18:00. Rain was recorded across 20 hours, from around 04:00 to 23:00 (60.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
97th percentile
Low temperature
84th percentile
Rainfall
100th percentile
Wind
96th 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 5.6°C, versus 10.4°C on this specific day.
Sun & daylight
Sunrise
07:45
Sunset
16:32
Day length
8h 46m
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 | 7.3 | 4.2 | 0.01 | 2.3 | SSE | 75 | 1019 |
| 01:00 | 09:00 | 7.1 | 4 | 0.03 | 2.4 | SSE | 77 | 1019 |
| 02:00 | 10:00 | 7 | 3.6 | 0.06 | 3 | SSE | 81 | 1017 |
| 03:00 | 11:00 | 7.1 | 3.9 | 0.09 | 2.7 | SSE | 82 | 1015 |
| 04:00 | 12:00 | 7.3 | 4.1 | 0.46 | 2.8 | SSE | 84 | 1014 |
| 05:00 | 13:00 | 6.8 | 3.8 | 1.22 | 2.9 | SSE | 91 | 1012 |
| 06:00 | 14:00 | 6.8 | 4.2 | 1.59 | 2.4 | SE | 93 | 1011 |
| 07:00 | 15:00 | 6.8 | 4.1 | 1.6 | 2.4 | ESE | 94 | 1009 |
| 08:00 | 16:00 | 7.3 | 4.5 | 1.58 | 2.6 | SE | 92 | 1008 |
| 09:00 | 17:00 | 8 | 4.1 | 1.94 | 4.5 | SSE | 92 | 1006 |
| 10:00 | 18:00 | 9 | 4.1 | 2.57 | 6.4 | S | 93 | 1005 |
| 11:00 | 19:00 | 10.1 | 4.6 | 3.4 | 7.6 | SSW | 93 | 1004 |
| 12:00 | 20:00 | 11.3 | 5.4 | 5.55 | 8.6 | SSW | 93 | 1003 |
| 13:00 | 21:00 | 12 | 5.8 | 5.23 | 9.3 | SSW | 93 | 1002 |
| 14:00 | 22:00 | 13.1 | 7.8 | 3.52 | 8.2 | SSW | 91 | 1001 |
| 15:00 | 23:00 | 13.3 | 7.9 | 2.71 | 8.5 | SSW | 90 | 1001 |
| 16:00 | 00:00 | 13.7 | 8.2 | 3.59 | 8.8 | SSW | 91 | 1001 |
| 17:00 | 01:00 | 14.4 | 8.9 | 3.84 | 9.1 | SSW | 91 | 1000 |
| 18:00 | 02:00 | 14.5 | 8.6 | 3.69 | 9.7 | SSW | 90 | 999 |
| 19:00 | 03:00 | 14.2 | 8.8 | 3.06 | 9 | SW | 91 | 1000 |
| 20:00 | 04:00 | 14.3 | 9.7 | 3.59 | 7.8 | SW | 90 | 1000 |
| 21:00 | 05:00 | 13.4 | 9 | 5.09 | 7.1 | WSW | 90 | 1000 |
| 22:00 | 06:00 | 12.5 | 9.2 | 4.61 | 5.2 | WSW | 90 | 1001 |
| 23:00 | 07:00 | 11.7 | 9 | 1.78 | 3.9 | WNW | 89 | 1002 |
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
- Salem — 45.000°, -123.000°, ERA5 grid cell center, 6.9 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- The hourly and daily record for 18 December 2025 specifically — not a monthly average. See the Salem 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 Salem, United States (45.00°N, 123.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Salem, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Salem, 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 Salem, 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.