Home / Windham / 15 December 2019
Windham
United States · 15 December 2019
← 14 December 201916 December 2019 →
Average
5.3°C
low 0.2°C · high 8.4°C
Rainfall
0mm
dry day
Wind
5.9m/s
daily average
Humidity
53.2%
daily average
Cloud
42%
cover
Pressure
1005hPa
daily average
The temperature ranged from 0.2°C around 23:00 to 8.4°C around 00:00. 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
79th percentile
Low temperature
79th percentile
Rainfall
45th percentile
Wind
95th 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 0.7°C, versus 5.3°C on this specific day.
Sun & daylight
Sunrise
07:08
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 | 8.4°C | 3.1°C | 0.01 | 6 | WSW | 80 | 991 |
| 01:00 | 06:00 | 6.6°C | 1.1°C | 0 | 5.7 | W | 76 | 993 |
| 02:00 | 07:00 | 6.3°C | 0.8°C | 0 | 5.3 | W | 71 | 994 |
| 03:00 | 08:00 | 5.2°C | -0.5°C | 0 | 5.3 | WSW | 69 | 995 |
| 04:00 | 09:00 | 5.1°C | -0.9°C | 0 | 5.5 | WSW | 67 | 996 |
| 05:00 | 10:00 | 5.1°C | -0.6°C | 0 | 5.1 | W | 64 | 998 |
| 06:00 | 11:00 | 5.2°C | -0.7°C | 0 | 5.2 | W | 62 | 999 |
| 07:00 | 12:00 | 5.2°C | -1.1°C | 0 | 5.8 | W | 60 | 1001 |
| 08:00 | 13:00 | 5.4°C | -1°C | 0 | 5.9 | W | 57 | 1002 |
| 09:00 | 14:00 | 6.3°C | 0.5°C | 0 | 4.9 | W | 52 | 1003 |
| 10:00 | 15:00 | 7.4°C | 0.5°C | 0 | 6.4 | W | 46 | 1004 |
| 11:00 | 16:00 | 7.6°C | -0.6°C | 0 | 8.2 | W | 46 | 1004 |
| 12:00 | 17:00 | 7.7°C | -0.4°C | 0 | 8 | W | 44 | 1005 |
| 13:00 | 18:00 | 7.4°C | -0.1°C | 0 | 7.1 | W | 43 | 1006 |
| 14:00 | 19:00 | 7.2°C | 0°C | 0 | 6.5 | W | 41 | 1006 |
| 15:00 | 20:00 | 6.9°C | 0.1°C | 0 | 5.9 | W | 40 | 1007 |
| 16:00 | 21:00 | 6.5°C | -0.5°C | 0 | 6.2 | W | 41 | 1009 |
| 17:00 | 22:00 | 4.8°C | -1.7°C | 0 | 5.3 | W | 42 | 1011 |
| 18:00 | 23:00 | 4.1°C | -2.5°C | 0 | 5.4 | WNW | 44 | 1013 |
| 19:00 | 00:00 | 3.3°C | -3.5°C | 0 | 5.7 | WNW | 46 | 1014 |
| 20:00 | 01:00 | 2.7°C | -4.2°C | 0 | 5.8 | WNW | 47 | 1015 |
| 21:00 | 02:00 | 2°C | -4.9°C | 0 | 5.6 | WNW | 47 | 1017 |
| 22:00 | 03:00 | 0.9°C | -5.8°C | 0 | 5.3 | WNW | 47 | 1018 |
| 23:00 | 04:00 | 0.2°C | -6.2°C | 0 | 4.8 | WNW | 47 | 1019 |
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
- 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 15 December 2019 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 (2026-07-18). 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 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Windham, 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 Windham, 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.