Home / Guildhall / 18 December 2021
Guildhall
United States · 18 December 2021
← 17 December 202119 December 2021 →
Average
-3.4°C
low -6.6° · high -0.9°
Rainfall
9mm
rain recorded
Wind
2.4m/s
daily average
Humidity
67%
daily average
Cloud
96%
cover
Pressure
1021hPa
daily average
The temperature ranged from -6.6°C around 23:00 to -0.9°C around 02:00. Rain was recorded across 10 hours, from around 14:00 to 23:00 (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
62th percentile
Low temperature
76th percentile
Rainfall
89th percentile
Wind
44th 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 -3.4°C on this specific day.
Sun & daylight
Sunrise
07:17
Sunset
16:07
Day length
8h 50m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | -1.1 | -7.1 | 0 | 4.3 | WNW | 55 | 1022 |
| 01:00 | 06:00 | -1.1 | -6.9 | 0 | 4.1 | NW | 56 | 1022 |
| 02:00 | 07:00 | -0.9 | -6.8 | 0 | 4.2 | NW | 57 | 1023 |
| 03:00 | 08:00 | -2.4 | -8 | 0 | 3.7 | NW | 60 | 1023 |
| 04:00 | 09:00 | -2.5 | -7.8 | 0 | 3.3 | NW | 62 | 1024 |
| 05:00 | 10:00 | -3.6 | -8.6 | 0 | 2.8 | NW | 64 | 1024 |
| 06:00 | 11:00 | -3.5 | -8.2 | 0 | 2.3 | NNW | 63 | 1024 |
| 07:00 | 12:00 | -3.6 | -8.1 | 0 | 2 | NNW | 62 | 1025 |
| 08:00 | 13:00 | -3.4 | -7.6 | 0 | 1.7 | NNW | 59 | 1024 |
| 09:00 | 14:00 | -2.8 | -6.8 | 0 | 1.2 | N | 53 | 1024 |
| 10:00 | 15:00 | -2.7 | -6.5 | 0 | 1 | NNE | 51 | 1024 |
| 11:00 | 16:00 | -2.5 | -6.1 | 0 | 0.6 | NE | 49 | 1023 |
| 12:00 | 17:00 | -2.3 | -5.8 | 0 | 0.5 | E | 50 | 1022 |
| 13:00 | 18:00 | -2.4 | -5.9 | 0.02 | 0.7 | ESE | 52 | 1021 |
| 14:00 | 19:00 | -2.5 | -6.7 | 0.37 | 1.5 | ESE | 55 | 1020 |
| 15:00 | 20:00 | -3.6 | -7.8 | 0.54 | 1.9 | ESE | 66 | 1020 |
| 16:00 | 21:00 | -3.8 | -8.3 | 0.75 | 2.3 | ESE | 75 | 1020 |
| 17:00 | 22:00 | -4.6 | -9 | 0.84 | 2.4 | ESE | 87 | 1019 |
| 18:00 | 23:00 | -4.7 | -9.3 | 0.96 | 2.8 | ESE | 89 | 1018 |
| 19:00 | 00:00 | -4.9 | -9.7 | 0.97 | 2.9 | ESE | 88 | 1018 |
| 20:00 | 01:00 | -5.2 | -10.3 | 0.96 | 3.3 | ESE | 86 | 1016 |
| 21:00 | 02:00 | -5.6 | -10.4 | 1.02 | 2.9 | ESE | 88 | 1015 |
| 22:00 | 03:00 | -6.3 | -11 | 1.1 | 2.6 | ESE | 90 | 1015 |
| 23:00 | 04:00 | -6.6 | -11.1 | 1.45 | 2.3 | ESE | 90 | 1015 |
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
- 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 18 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 (2026-07-16). 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 16, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Guildhall, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 16, 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 2026-07-16},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.