Home / Thompson / 12 December 2017
Thompson
United States · 12 December 2017
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Average
2°C
low -0.7°C · high 5.4°C
Rainfall
5.6mm
rain recorded
Wind
3.1m/s
daily average
Humidity
83.9%
daily average
Cloud
99%
cover
Pressure
1003hPa
daily average
The temperature ranged from -0.7°C around 00:00 to 5.4°C around 16:00. Rain was recorded across 9 hours, from around 09:00 to 17:00 (5.6mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
59th percentile
Low temperature
66th percentile
Rainfall
81th percentile
Wind
36th 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 1.1°C, versus 2°C on this specific day.
Sun & daylight
Sunrise
07:05
Sunset
16:15
Day length
9h 10m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | -0.7°C | -4.6°C | 0 | 1.7 | ESE | 70 | 1015 |
| 01:00 | 06:00 | -0.3°C | -4.3°C | 0.01 | 2 | ESE | 68 | 1015 |
| 02:00 | 07:00 | 0°C | -4.3°C | 0 | 2.5 | ESE | 67 | 1014 |
| 03:00 | 08:00 | -0.1°C | -4.5°C | 0.02 | 2.6 | ESE | 69 | 1014 |
| 04:00 | 09:00 | 0°C | -4.4°C | 0.03 | 2.7 | ESE | 73 | 1012 |
| 05:00 | 10:00 | 0.3°C | -3.9°C | 0.04 | 2.6 | E | 77 | 1012 |
| 06:00 | 11:00 | 0.2°C | -4.3°C | 0.04 | 3 | E | 79 | 1011 |
| 07:00 | 12:00 | -0.1°C | -4.6°C | 0.03 | 3 | ESE | 81 | 1009 |
| 08:00 | 13:00 | 0.6°C | -3.7°C | 0.02 | 2.9 | ESE | 82 | 1008 |
| 09:00 | 14:00 | 1.8°C | -2.6°C | 0.11 | 3.2 | ESE | 79 | 1007 |
| 10:00 | 15:00 | 2.9°C | -1.4°C | 0.38 | 3.3 | ESE | 83 | 1005 |
| 11:00 | 16:00 | 3.6°C | -0.8°C | 0.45 | 3.8 | SE | 89 | 1003 |
| 12:00 | 17:00 | 4.4°C | 0°C | 0.47 | 4.1 | SE | 92 | 1001 |
| 13:00 | 18:00 | 4.9°C | 0.8°C | 0.38 | 4 | SE | 94 | 999 |
| 14:00 | 19:00 | 5.1°C | 1.3°C | 0.67 | 3.7 | SE | 95 | 997 |
| 15:00 | 20:00 | 5.3°C | 2°C | 1.25 | 2.9 | SSE | 95 | 996 |
| 16:00 | 21:00 | 5.4°C | 3°C | 1.12 | 1.8 | SSW | 94 | 995 |
| 17:00 | 22:00 | 4.4°C | 2.5°C | 0.44 | 0.7 | NNW | 92 | 994 |
| 18:00 | 23:00 | 4°C | 0.9°C | 0.07 | 2.3 | WNW | 93 | 994 |
| 19:00 | 00:00 | 3°C | -0.8°C | 0.02 | 3.1 | WNW | 91 | 994 |
| 20:00 | 01:00 | 2.4°C | -1.8°C | 0 | 3.5 | WNW | 92 | 993 |
| 21:00 | 02:00 | 1.6°C | -3.7°C | 0 | 4.7 | WNW | 90 | 993 |
| 22:00 | 03:00 | 0.5°C | -5.2°C | 0 | 5 | WNW | 86 | 993 |
| 23:00 | 04:00 | -0.1°C | -6.3°C | 0 | 5.6 | WNW | 83 | 993 |
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
- Thompson — 42.000°, -71.750°, ERA5 grid cell center, 10.4 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 12 December 2017 specifically — not a monthly average. See the Thompson 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 Thompson, United States (42.00°N, 71.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Thompson, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Thompson, 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 Thompson, 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.