Home / Chelan / 11 December 2018
Chelan
United States · 11 December 2018
← 10 December 201812 December 2018 →
Average
-1.3°C
low -2.4°C · high 0.6°C
Rainfall
13.7mm
rain recorded
Wind
1.7m/s
daily average
Humidity
91.1%
daily average
Cloud
94%
cover
Pressure
1014hPa
daily average
The temperature ranged from -2.4°C around 01:00 to 0.6°C around 20:00. Rain was recorded across 22 hours, from around 01:00 to 22:00 (13.7mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
44th percentile
Low temperature
56th percentile
Rainfall
93th percentile
Wind
79th 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 -1.4°C, versus -1.3°C on this specific day.
Sun & daylight
Sunrise
07:38
Sunset
16:07
Day length
8h 29m
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 | -1.6°C | -5°C | 0.06 | 1.5 | SSE | 95 | 1026 |
| 01:00 | 09:00 | -2.4°C | -5.9°C | 0.12 | 1.6 | SE | 95 | 1025 |
| 02:00 | 10:00 | -2.1°C | -5.6°C | 0.15 | 1.7 | ESE | 94 | 1026 |
| 03:00 | 11:00 | -2°C | -5.5°C | 0.19 | 1.5 | ESE | 91 | 1025 |
| 04:00 | 12:00 | -2°C | -5.6°C | 0.24 | 1.6 | SE | 91 | 1024 |
| 05:00 | 13:00 | -2.1°C | -5.6°C | 0.34 | 1.5 | SE | 91 | 1023 |
| 06:00 | 14:00 | -2.3°C | -5.6°C | 0.6 | 1.2 | SSE | 92 | 1021 |
| 07:00 | 15:00 | -1.9°C | -5.1°C | 0.91 | 1.1 | SSE | 88 | 1020 |
| 08:00 | 16:00 | -1.8°C | -5°C | 0.75 | 1.2 | S | 89 | 1018 |
| 09:00 | 17:00 | -1.8°C | -5.1°C | 0.42 | 1.2 | S | 90 | 1018 |
| 10:00 | 18:00 | -1.9°C | -5.4°C | 0.35 | 1.5 | S | 90 | 1016 |
| 11:00 | 19:00 | -1.7°C | -5.3°C | 0.72 | 1.6 | S | 91 | 1015 |
| 12:00 | 20:00 | -1.5°C | -5.1°C | 0.74 | 1.8 | S | 93 | 1013 |
| 13:00 | 21:00 | -0.8°C | -4.4°C | 0.76 | 2 | S | 93 | 1011 |
| 14:00 | 22:00 | -0.3°C | -4°C | 0.81 | 2 | SSW | 87 | 1009 |
| 15:00 | 23:00 | -0.1°C | -3.6°C | 1.09 | 1.8 | SSW | 88 | 1008 |
| 16:00 | 00:00 | -0.4°C | -3.4°C | 1.37 | 1.2 | SSW | 92 | 1007 |
| 17:00 | 01:00 | -0.6°C | -3.7°C | 1.07 | 1.3 | SW | 94 | 1006 |
| 18:00 | 02:00 | -0.6°C | -3.7°C | 0.77 | 1.3 | SW | 94 | 1005 |
| 19:00 | 03:00 | 0.2°C | -3.1°C | 0.95 | 1.6 | SW | 92 | 1004 |
| 20:00 | 04:00 | 0.6°C | -3°C | 0.76 | 2.2 | SW | 91 | 1004 |
| 21:00 | 05:00 | 0.2°C | -3.7°C | 0.18 | 2.5 | WSW | 88 | 1004 |
| 22:00 | 06:00 | -1.9°C | -6.2°C | 0.29 | 2.5 | WSW | 89 | 1003 |
| 23:00 | 07:00 | -1.7°C | -6.1°C | 0.02 | 2.8 | WSW | 87 | 1004 |
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
- Chelan — 47.750°, -120.000°, ERA5 grid cell center, 10.2 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- The hourly and daily record for 11 December 2018 specifically — not a monthly average. See the Chelan 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 Chelan, United States (47.75°N, 120.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Chelan, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Chelan, 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 Chelan, 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.