Home / Copperopolis / 3 January 2018
Copperopolis
United States · 3 January 2018
← 2 January 20184 January 2018 →
Average
11.1°C
low 6.2° · high 16.1°
Rainfall
0.8mm
dry day
Wind
1.8m/s
daily average
Humidity
68.2%
daily average
Cloud
93%
cover
Pressure
1017hPa
daily average
The temperature ranged from 6.2°C around 06:00 to 16.1°C around 14:00. Rain was recorded for one hour, around 23:00 (0.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
89th percentile
Low temperature
65th percentile
Rainfall
61th percentile
Wind
46th 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 8.8°C, versus 11.1°C on this specific day.
Sun & daylight
Sunrise
07:19
Sunset
16:56
Day length
9h 37m
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 | 8.7 | 6.4 | 0 | 2.2 | ENE | 87 | 1019 |
| 01:00 | 09:00 | 8 | 5.9 | 0 | 1.9 | ENE | 90 | 1018 |
| 02:00 | 10:00 | 7.9 | 5.5 | 0 | 1.9 | ENE | 87 | 1019 |
| 03:00 | 11:00 | 7.7 | 5.4 | 0 | 1.7 | ENE | 85 | 1019 |
| 04:00 | 12:00 | 6.9 | 4.5 | 0 | 1.8 | ENE | 85 | 1018 |
| 05:00 | 13:00 | 6.2 | 3.8 | 0 | 1.6 | ENE | 86 | 1018 |
| 06:00 | 14:00 | 6.2 | 4 | 0 | 1.2 | ENE | 84 | 1018 |
| 07:00 | 15:00 | 6.4 | 4.2 | 0 | 1 | ENE | 79 | 1018 |
| 08:00 | 16:00 | 6.5 | 3.8 | 0 | 1.6 | ENE | 77 | 1017 |
| 09:00 | 17:00 | 9.2 | 7 | 0 | 1.5 | ENE | 75 | 1017 |
| 10:00 | 18:00 | 12.2 | 11.1 | 0 | 0.4 | ESE | 67 | 1018 |
| 11:00 | 19:00 | 14.8 | 13 | 0 | 0.7 | E | 49 | 1018 |
| 12:00 | 20:00 | 15.1 | 12.8 | 0 | 1.6 | ESE | 50 | 1017 |
| 13:00 | 21:00 | 15.4 | 12.4 | 0 | 2.1 | SE | 43 | 1017 |
| 14:00 | 22:00 | 16.1 | 13.9 | 0.02 | 1.7 | SSW | 51 | 1016 |
| 15:00 | 23:00 | 15.8 | 13 | 0.05 | 2.6 | S | 51 | 1018 |
| 16:00 | 00:00 | 15 | 12.4 | 0 | 2.4 | ESE | 53 | 1017 |
| 17:00 | 01:00 | 14 | 11.4 | 0 | 2.3 | ESE | 56 | 1017 |
| 18:00 | 02:00 | 13.4 | 10.9 | 0 | 2.1 | SE | 58 | 1016 |
| 19:00 | 03:00 | 12.6 | 10.3 | 0.04 | 2.1 | SE | 67 | 1016 |
| 20:00 | 04:00 | 12.7 | 10.3 | 0.08 | 2.2 | ESE | 65 | 1016 |
| 21:00 | 05:00 | 12.3 | 9.9 | 0.08 | 2.2 | ESE | 65 | 1016 |
| 22:00 | 06:00 | 11.8 | 9.2 | 0.09 | 2.2 | ESE | 64 | 1016 |
| 23:00 | 07:00 | 11.2 | 8.4 | 0.43 | 2.2 | ESE | 63 | 1016 |
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
- Copperopolis — 38.000°, -120.750°, ERA5 grid cell center, 9.7 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- The hourly and daily record for 3 January 2018 specifically — not a monthly average. See the Copperopolis 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 (2026-07-18). Historical climate data for Copperopolis, United States (38.00°N, 120.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Copperopolis, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Copperopolis, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Copperopolis, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-18},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.