Home / Guildhall / 21 December 2019
Guildhall
United States · 21 December 2019
← 20 December 201922 December 2019 →
Average
-14°C
low -22°C · high -6.4°C
Rainfall
0mm
dry day
Wind
1.3m/s
daily average
Humidity
73.8%
daily average
Cloud
65%
cover
Pressure
1035hPa
daily average
The temperature ranged from -22°C around 07:00 to -6.4°C around 13:00. 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
24th percentile
Low temperature
10th percentile
Rainfall
17th percentile
Wind
9th 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 -14°C on this specific day.
Sun & daylight
Sunrise
07:19
Sunset
16:08
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 | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | -19.5°C | -23.6°C | 0 | 0.7 | ENE | 81 | 1040 |
| 01:00 | 06:00 | -19.9°C | -23.9°C | 0 | 0.6 | E | 81 | 1040 |
| 02:00 | 07:00 | -19.9°C | -24°C | 0 | 0.6 | ESE | 78 | 1040 |
| 03:00 | 08:00 | -21°C | -25.2°C | 0 | 0.7 | ESE | 77 | 1040 |
| 04:00 | 09:00 | -21.8°C | -26.2°C | 0 | 0.9 | ESE | 75 | 1039 |
| 05:00 | 10:00 | -21.7°C | -26.1°C | 0 | 0.9 | ESE | 72 | 1039 |
| 06:00 | 11:00 | -21.7°C | -26°C | 0 | 0.8 | ESE | 70 | 1038 |
| 07:00 | 12:00 | -22°C | -26.3°C | 0 | 0.8 | ESE | 69 | 1038 |
| 08:00 | 13:00 | -21.8°C | -26.2°C | 0 | 0.9 | ESE | 71 | 1038 |
| 09:00 | 14:00 | -17.4°C | -21.7°C | 0 | 1 | SE | 74 | 1037 |
| 10:00 | 15:00 | -12°C | -16.2°C | 0 | 1.1 | SE | 66 | 1037 |
| 11:00 | 16:00 | -9.4°C | -13.4°C | 0 | 0.9 | SSE | 66 | 1036 |
| 12:00 | 17:00 | -6.5°C | -10.5°C | 0 | 1.2 | SSE | 64 | 1034 |
| 13:00 | 18:00 | -6.4°C | -10.5°C | 0 | 1.5 | SSE | 69 | 1033 |
| 14:00 | 19:00 | -6.5°C | -10.7°C | 0 | 1.5 | S | 70 | 1032 |
| 15:00 | 20:00 | -6.4°C | -10.4°C | 0 | 1.4 | SSE | 75 | 1032 |
| 16:00 | 21:00 | -6.7°C | -11.1°C | 0 | 1.9 | SSE | 71 | 1031 |
| 17:00 | 22:00 | -7.6°C | -12.3°C | 0 | 2.2 | SSE | 75 | 1031 |
| 18:00 | 23:00 | -8.5°C | -13.1°C | 0 | 2.1 | SSE | 76 | 1031 |
| 19:00 | 00:00 | -9.2°C | -13.6°C | 0 | 1.8 | SSE | 78 | 1031 |
| 20:00 | 01:00 | -9.9°C | -14.5°C | 0 | 2 | SSE | 77 | 1030 |
| 21:00 | 02:00 | -11.9°C | -16.8°C | 0 | 2.2 | S | 78 | 1030 |
| 22:00 | 03:00 | -13.3°C | -18.2°C | 0 | 2.2 | S | 79 | 1030 |
| 23:00 | 04:00 | -14.2°C | -19.2°C | 0 | 2.1 | S | 79 | 1029 |
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 21 December 2019 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 (2026-07-20). 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 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Guildhall, 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 Guildhall, 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.