Home / Windham / 17 December 2017
Windham
United States · 17 December 2017
← 16 December 201718 December 2017 →
Average
-5°C
low -10.4°C · high -1.2°C
Rainfall
0mm
dry day
Wind
2m/s
daily average
Humidity
54.5%
daily average
Cloud
53%
cover
Pressure
1025hPa
daily average
The temperature ranged from -10.4°C around 07:00 to -1.2°C around 14:00. 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
12th percentile
Low temperature
7th percentile
Rainfall
46th percentile
Wind
12th 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°C on this specific day.
Sun & daylight
Sunrise
07:10
Sunset
16:19
Day length
9h 9m
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 | -4.1°C | -9°C | 0 | 2.6 | NW | 59 | 1023 |
| 01:00 | 06:00 | -5.2°C | -10.2°C | 0 | 2.6 | NW | 61 | 1023 |
| 02:00 | 07:00 | -5.9°C | -10.7°C | 0 | 2.3 | NW | 64 | 1024 |
| 03:00 | 08:00 | -6.8°C | -11.5°C | 0 | 2.1 | WNW | 67 | 1024 |
| 04:00 | 09:00 | -7.8°C | -12.6°C | 0 | 2.2 | WNW | 68 | 1025 |
| 05:00 | 10:00 | -9.8°C | -15°C | 0 | 2.7 | WNW | 76 | 1025 |
| 06:00 | 11:00 | -10.4°C | -15.2°C | 0 | 2.2 | NW | 75 | 1025 |
| 07:00 | 12:00 | -10.4°C | -15.3°C | 0 | 2.3 | NW | 73 | 1026 |
| 08:00 | 13:00 | -10.4°C | -15.4°C | 0 | 2.4 | NW | 75 | 1026 |
| 09:00 | 14:00 | -6.3°C | -11.1°C | 0 | 2.1 | NW | 62 | 1026 |
| 10:00 | 15:00 | -4.1°C | -9°C | 0 | 2.4 | NW | 50 | 1027 |
| 11:00 | 16:00 | -2.7°C | -8°C | 0 | 2.9 | NW | 44 | 1026 |
| 12:00 | 17:00 | -1.7°C | -6.8°C | 0 | 2.6 | NW | 39 | 1025 |
| 13:00 | 18:00 | -1.2°C | -6.3°C | 0 | 2.5 | NW | 37 | 1025 |
| 14:00 | 19:00 | -1.2°C | -6.1°C | 0 | 2.3 | WNW | 37 | 1024 |
| 15:00 | 20:00 | -1.2°C | -5.7°C | 0 | 1.6 | WNW | 37 | 1024 |
| 16:00 | 21:00 | -2.1°C | -6.4°C | 0 | 1.4 | NW | 39 | 1024 |
| 17:00 | 22:00 | -3.1°C | -7.6°C | 0 | 1.8 | NW | 47 | 1025 |
| 18:00 | 23:00 | -3.5°C | -8°C | 0 | 1.7 | NW | 49 | 1025 |
| 19:00 | 00:00 | -4.1°C | -8.4°C | 0 | 1.4 | NNW | 51 | 1025 |
| 20:00 | 01:00 | -4.4°C | -8.2°C | 0 | 0.9 | NNW | 52 | 1026 |
| 21:00 | 02:00 | -4°C | -7.7°C | 0 | 0.6 | NNE | 49 | 1026 |
| 22:00 | 03:00 | -4.2°C | -8.3°C | 0 | 1.2 | ENE | 50 | 1025 |
| 23:00 | 04:00 | -4.2°C | -8.6°C | 0 | 1.6 | E | 48 | 1025 |
Nearby cities
Need this verified for an official or legal purpose? Request a weather verification report.
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
- Windham — 41.750°, -72.250°, ERA5 grid cell center, 9.5 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 17 December 2017 specifically — not a monthly average. See the Windham 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 Windham, 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 Windham, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Windham, 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 Windham, 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.