Home / Copperopolis / 3 January 2017
Copperopolis
United States · 3 January 2017
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Average
9.1°C
low 7.3° · high 11.1°
Rainfall
21.8mm
rain recorded
Wind
5.6m/s
daily average
Humidity
79.7%
daily average
Cloud
100%
cover
Pressure
1018hPa
daily average
The temperature ranged from 7.3°C around 04:00 to 11.1°C around 14:00. Rain was recorded across 22 hours, from around 00:00 to 23:00 (21.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
18th percentile
Low temperature
72th percentile
Rainfall
93th percentile
Wind
97th 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 8.9°C, versus 9.1°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 | 4.1 | 0.58 | 4 | SE | 83 | 1020 |
| 01:00 | 09:00 | 7.4 | 3.5 | 0.59 | 4 | SE | 83 | 1020 |
| 02:00 | 10:00 | 7.3 | 3.5 | 0.45 | 3.9 | SE | 85 | 1021 |
| 03:00 | 11:00 | 7.7 | 3.9 | 0.86 | 3.7 | SE | 83 | 1021 |
| 04:00 | 12:00 | 7.3 | 3.7 | 0.79 | 3.5 | SE | 86 | 1020 |
| 05:00 | 13:00 | 7.4 | 3.7 | 1.14 | 3.9 | SE | 86 | 1020 |
| 06:00 | 14:00 | 7.6 | 3.7 | 1.16 | 4.1 | SE | 86 | 1020 |
| 07:00 | 15:00 | 8.1 | 4.3 | 1.19 | 3.9 | SE | 83 | 1020 |
| 08:00 | 16:00 | 8.2 | 4.3 | 1.11 | 3.9 | SE | 82 | 1020 |
| 09:00 | 17:00 | 8.7 | 4.4 | 0.94 | 4.6 | SE | 81 | 1019 |
| 10:00 | 18:00 | 9.4 | 5 | 0.7 | 5.1 | SSE | 81 | 1019 |
| 11:00 | 19:00 | 9.9 | 5.6 | 0.03 | 5.1 | SSE | 81 | 1019 |
| 12:00 | 20:00 | 10.5 | 6.5 | 0.07 | 4.9 | SSE | 80 | 1018 |
| 13:00 | 21:00 | 10.4 | 6 | 0.14 | 5.1 | SE | 77 | 1017 |
| 14:00 | 22:00 | 11.1 | 6 | 0.18 | 5.7 | SE | 66 | 1016 |
| 15:00 | 23:00 | 10.6 | 5.3 | 0.46 | 5.9 | SE | 67 | 1017 |
| 16:00 | 00:00 | 9.8 | 4.2 | 0.88 | 6.6 | SE | 76 | 1017 |
| 17:00 | 01:00 | 9.8 | 3.6 | 1.51 | 7.4 | SE | 75 | 1016 |
| 18:00 | 02:00 | 9.7 | 3.2 | 1.42 | 7.9 | SE | 77 | 1016 |
| 19:00 | 03:00 | 9.6 | 3.2 | 1.44 | 7.9 | SE | 79 | 1015 |
| 20:00 | 04:00 | 10.1 | 3.8 | 1.3 | 7.8 | SE | 79 | 1015 |
| 21:00 | 05:00 | 10.2 | 3.8 | 1.64 | 8.1 | SE | 78 | 1015 |
| 22:00 | 06:00 | 10.2 | 3.6 | 2.11 | 8.3 | SE | 79 | 1015 |
| 23:00 | 07:00 | 10.3 | 3.7 | 1.15 | 8.4 | SE | 79 | 1015 |
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 2017 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 (2026-07-17). 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 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Copperopolis, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 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 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.