Home / Willimantic / 15 December 2016
Willimantic
United States · 15 December 2016
← 14 December 201616 December 2016 →
Average
-5.1°C
low -8.3°C · high -1.8°C
Rainfall
0.3mm
dry day
Wind
6.1m/s
daily average
Humidity
34.1%
daily average
Cloud
61%
cover
Pressure
1010hPa
daily average
The temperature ranged from -8.3°C around 18:00 to -1.8°C around 03:00. No measurable rain was recorded during the day.
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
7th percentile
Low temperature
16th percentile
Rainfall
56th percentile
Wind
96th 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 0.9°C, versus -5.1°C on this specific day.
Sun & daylight
Sunrise
07:09
Sunset
16:19
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 | -2.9°C | -9.3°C | 0 | 4.6 | SW | 51 | 1010 |
| 01:00 | 06:00 | -2.2°C | -8.5°C | 0 | 4.4 | WSW | 47 | 1010 |
| 02:00 | 07:00 | -2°C | -8.3°C | 0.01 | 4.4 | WSW | 42 | 1009 |
| 03:00 | 08:00 | -1.8°C | -8.3°C | 0.02 | 4.6 | WSW | 42 | 1008 |
| 04:00 | 09:00 | -2°C | -8.5°C | 0.02 | 4.6 | WSW | 42 | 1007 |
| 05:00 | 10:00 | -2.9°C | -9.7°C | 0.01 | 4.7 | WSW | 35 | 1006 |
| 06:00 | 11:00 | -3.1°C | -9.9°C | 0 | 4.8 | W | 33 | 1006 |
| 07:00 | 12:00 | -3.4°C | -10.5°C | 0 | 5.2 | WNW | 34 | 1007 |
| 08:00 | 13:00 | -4.1°C | -11.8°C | 0 | 6.1 | WNW | 39 | 1008 |
| 09:00 | 14:00 | -4°C | -12.4°C | 0.02 | 7.1 | WNW | 38 | 1008 |
| 10:00 | 15:00 | -4.4°C | -13.4°C | 0.01 | 7.7 | WNW | 29 | 1008 |
| 11:00 | 16:00 | -4.2°C | -13.7°C | 0 | 8.3 | WNW | 26 | 1008 |
| 12:00 | 17:00 | -4.5°C | -14.3°C | 0.01 | 8.8 | WNW | 26 | 1008 |
| 13:00 | 18:00 | -5.4°C | -15°C | 0.04 | 8.5 | NW | 25 | 1009 |
| 14:00 | 19:00 | -6°C | -15.2°C | 0.01 | 7.8 | NW | 25 | 1010 |
| 15:00 | 20:00 | -6.4°C | -14.7°C | 0 | 6.6 | WNW | 22 | 1011 |
| 16:00 | 21:00 | -7.2°C | -15°C | 0 | 5.8 | WNW | 22 | 1012 |
| 17:00 | 22:00 | -8.1°C | -15.5°C | 0 | 5.4 | W | 27 | 1013 |
| 18:00 | 23:00 | -8.3°C | -16°C | 0 | 5.7 | W | 31 | 1014 |
| 19:00 | 00:00 | -8.1°C | -16.2°C | 0.02 | 6.5 | WSW | 36 | 1014 |
| 20:00 | 01:00 | -7.9°C | -16.3°C | 0.04 | 6.9 | WSW | 36 | 1015 |
| 21:00 | 02:00 | -7.6°C | -15.8°C | 0.05 | 6.5 | WSW | 34 | 1015 |
| 22:00 | 03:00 | -7.5°C | -15.3°C | 0.03 | 6 | W | 37 | 1016 |
| 23:00 | 04:00 | -7.6°C | -15.7°C | 0.01 | 6.6 | WNW | 39 | 1017 |
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
- Willimantic — 41.750°, -72.250°, ERA5 grid cell center, 5.6 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 15 December 2016 specifically — not a monthly average. See the Willimantic 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 Willimantic, United States (41.75°N, 72.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Willimantic, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Willimantic, 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 Willimantic, 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.