Home / Guildhall / 15 December 2021
Guildhall
United States · 15 December 2021
← 14 December 202116 December 2021 →
Average
-2.9°C
low -7.9°C · high 2.3°C
Rainfall
2.9mm
rain recorded
Wind
1.8m/s
daily average
Humidity
53.6%
daily average
Cloud
83%
cover
Pressure
1035hPa
daily average
The temperature ranged from -7.9°C around 07:00 to 2.3°C around 12:00. Rain was recorded across 5 hours, from around 19:00 to 23:00 (2.9mm total).
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
67th percentile
Rainfall
73th percentile
Wind
24th 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 -6.8°C, versus -2.9°C on this specific day.
Sun & daylight
Sunrise
07:15
Sunset
16:06
Day length
8h 51m
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 | -5.8°C | -9.9°C | 0 | 1.3 | W | 56 | 1039 |
| 01:00 | 06:00 | -5.9°C | -9.9°C | 0 | 1.1 | WNW | 56 | 1040 |
| 02:00 | 07:00 | -5.9°C | -9.8°C | 0 | 0.9 | WNW | 54 | 1040 |
| 03:00 | 08:00 | -6.5°C | -10.4°C | 0 | 0.9 | W | 58 | 1040 |
| 04:00 | 09:00 | -6.5°C | -10.3°C | 0 | 0.9 | WSW | 61 | 1040 |
| 05:00 | 10:00 | -7°C | -10.7°C | 0 | 0.8 | WSW | 68 | 1040 |
| 06:00 | 11:00 | -6.9°C | -10.7°C | 0 | 0.9 | WSW | 68 | 1040 |
| 07:00 | 12:00 | -7.9°C | -11.4°C | 0 | 0.4 | SW | 73 | 1041 |
| 08:00 | 13:00 | -7.7°C | -11.3°C | 0 | 0.5 | ESE | 71 | 1041 |
| 09:00 | 14:00 | -3.8°C | -7.5°C | 0 | 0.7 | ESE | 58 | 1039 |
| 10:00 | 15:00 | -2.3°C | -6.1°C | 0 | 0.9 | SE | 45 | 1039 |
| 11:00 | 16:00 | -0.5°C | -4.7°C | 0 | 1.3 | SE | 35 | 1037 |
| 12:00 | 17:00 | 2.3°C | -2.4°C | 0 | 1.8 | SE | 24 | 1035 |
| 13:00 | 18:00 | 2.1°C | -2.8°C | 0 | 2.1 | SSE | 23 | 1034 |
| 14:00 | 19:00 | 1.7°C | -3.3°C | 0 | 2.2 | SE | 27 | 1033 |
| 15:00 | 20:00 | 1.1°C | -4.1°C | 0 | 2.6 | SSE | 31 | 1032 |
| 16:00 | 21:00 | -0.2°C | -5.6°C | 0 | 2.9 | SE | 33 | 1032 |
| 17:00 | 22:00 | -1.3°C | -6.5°C | 0 | 2.8 | SE | 41 | 1031 |
| 18:00 | 23:00 | -1.4°C | -6.5°C | 0.01 | 2.8 | SE | 46 | 1030 |
| 19:00 | 00:00 | -1.4°C | -6.7°C | 0.18 | 3.3 | SE | 53 | 1030 |
| 20:00 | 01:00 | -1.7°C | -7°C | 0.52 | 3.5 | SSE | 62 | 1028 |
| 21:00 | 02:00 | -1.1°C | -6°C | 0.6 | 3.3 | SSE | 72 | 1027 |
| 22:00 | 03:00 | -1.4°C | -6°C | 0.73 | 2.9 | SSE | 83 | 1026 |
| 23:00 | 04:00 | -1.7°C | -6.2°C | 0.9 | 2.9 | SSE | 89 | 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
- Guildhall — 44.500°, -71.500°, ERA5 grid cell center, 8.6 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 15 December 2021 specifically — not a monthly average. See the Guildhall 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 (2026-07-21). Historical climate data for Guildhall, United States (44.50°N, 71.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Guildhall, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Guildhall, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 21, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Guildhall, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-21},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.