Home / Lacey / 18 December 2017
Lacey
United States · 18 December 2017
← 17 December 201719 December 2017 →
Average
7.9°C
low 6.2°C · high 9.2°C
Rainfall
13.5mm
rain recorded
Wind
3.2m/s
daily average
Humidity
93.3%
daily average
Cloud
100%
cover
Pressure
1018hPa
daily average
The temperature ranged from 6.2°C around 21:00 to 9.2°C around 05:00. Rain was recorded across 24 hours, from around 00:00 to 23:00 (13.5mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
71th percentile
Low temperature
77th percentile
Rainfall
81th percentile
Wind
60th 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 7.9°C on this specific day.
Sun & daylight
Sunrise
07:52
Sunset
16:23
Day length
8h 31m
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 | 08:00 | 7.2°C | 2.3°C | 0.27 | 5.6 | S | 93 | 1016 |
| 01:00 | 09:00 | 7.7°C | 3.2°C | 0.44 | 5.4 | SSW | 96 | 1016 |
| 02:00 | 10:00 | 8.1°C | 4.1°C | 0.84 | 4.8 | SSW | 95 | 1016 |
| 03:00 | 11:00 | 8.7°C | 5.1°C | 1.43 | 4.5 | SSW | 95 | 1016 |
| 04:00 | 12:00 | 9°C | 5.6°C | 1.06 | 4.4 | SSW | 96 | 1016 |
| 05:00 | 13:00 | 9.2°C | 6°C | 0.71 | 4.1 | SSW | 96 | 1016 |
| 06:00 | 14:00 | 9.2°C | 6.1°C | 0.64 | 4 | SSW | 96 | 1017 |
| 07:00 | 15:00 | 9.2°C | 6°C | 0.46 | 4 | SW | 94 | 1018 |
| 08:00 | 16:00 | 8.6°C | 5.3°C | 0.29 | 3.9 | SW | 93 | 1018 |
| 09:00 | 17:00 | 8.4°C | 5.1°C | 0.22 | 3.8 | SW | 92 | 1019 |
| 10:00 | 18:00 | 8.1°C | 4.6°C | 0.14 | 3.8 | SW | 90 | 1020 |
| 11:00 | 19:00 | 8°C | 4.6°C | 0.11 | 3.7 | SW | 90 | 1020 |
| 12:00 | 20:00 | 7.9°C | 4.6°C | 0.12 | 3.5 | SW | 90 | 1020 |
| 13:00 | 21:00 | 8°C | 5°C | 0.23 | 3.2 | SW | 92 | 1020 |
| 14:00 | 22:00 | 8.3°C | 5.9°C | 0.35 | 2.3 | SSW | 91 | 1020 |
| 15:00 | 23:00 | 8.2°C | 5.9°C | 0.43 | 2.2 | S | 92 | 1020 |
| 16:00 | 00:00 | 8.1°C | 5.8°C | 0.49 | 2.1 | S | 92 | 1020 |
| 17:00 | 01:00 | 7.6°C | 5.5°C | 0.49 | 1.8 | S | 91 | 1020 |
| 18:00 | 02:00 | 7.4°C | 5.4°C | 0.53 | 1.6 | SSE | 93 | 1019 |
| 19:00 | 03:00 | 6.8°C | 5°C | 0.61 | 1.2 | SE | 94 | 1019 |
| 20:00 | 04:00 | 6.7°C | 4.9°C | 0.71 | 1.2 | ESE | 95 | 1018 |
| 21:00 | 05:00 | 6.2°C | 4.3°C | 0.69 | 1.3 | ENE | 95 | 1017 |
| 22:00 | 06:00 | 6.6°C | 4.2°C | 0.77 | 1.9 | NE | 94 | 1016 |
| 23:00 | 07:00 | 6.3°C | 3.8°C | 1.43 | 2 | NE | 94 | 1015 |
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
- Lacey — 47.000°, -122.750°, ERA5 grid cell center, 6.7 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- The hourly and daily record for 18 December 2017 specifically — not a monthly average. See the Lacey 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 Lacey, United States (47.00°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 Lacey, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Lacey, 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 Lacey, 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.