Home / Guildhall / 15 December 2017
Guildhall
United States · 15 December 2017
← 14 December 201716 December 2017 →
Average
-15.4°C
low -22° · high -9.6°
Rainfall
0.2mm
dry day
Wind
1.7m/s
daily average
Humidity
72.2%
daily average
Cloud
60%
cover
Pressure
1015hPa
daily average
The temperature ranged from -22°C around 08:00 to -9.6°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
10th percentile
Low temperature
7th percentile
Rainfall
31th percentile
Wind
18th 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 -6.1°C, versus -15.4°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 °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | -17.4 | -22.9 | 0 | 2.7 | WSW | 75 | 1016 |
| 01:00 | 06:00 | -17.2 | -22.7 | 0 | 2.6 | WSW | 75 | 1016 |
| 02:00 | 07:00 | -17.2 | -22.4 | 0 | 2.3 | WSW | 75 | 1017 |
| 03:00 | 08:00 | -18.1 | -23.2 | 0 | 2.1 | SW | 77 | 1017 |
| 04:00 | 09:00 | -18.4 | -23.3 | 0 | 1.8 | SW | 77 | 1017 |
| 05:00 | 10:00 | -21.1 | -25.9 | 0 | 1.6 | SSW | 80 | 1017 |
| 06:00 | 11:00 | -21.6 | -26.5 | 0 | 1.7 | SSW | 79 | 1018 |
| 07:00 | 12:00 | -21.6 | -26.6 | 0 | 1.7 | S | 77 | 1018 |
| 08:00 | 13:00 | -22 | -26.9 | 0 | 1.7 | S | 77 | 1018 |
| 09:00 | 14:00 | -19.1 | -23.8 | 0 | 1.5 | SSW | 72 | 1019 |
| 10:00 | 15:00 | -15 | -19.6 | 0 | 1.5 | SSW | 66 | 1019 |
| 11:00 | 16:00 | -12.9 | -17.8 | 0 | 1.9 | SW | 58 | 1018 |
| 12:00 | 17:00 | -9.8 | -14.6 | 0 | 1.8 | SW | 52 | 1017 |
| 13:00 | 18:00 | -9.6 | -14.3 | 0 | 1.7 | WSW | 54 | 1016 |
| 14:00 | 19:00 | -10.3 | -14.8 | 0 | 1.4 | SW | 58 | 1015 |
| 15:00 | 20:00 | -11 | -15.3 | 0 | 1.1 | S | 65 | 1015 |
| 16:00 | 21:00 | -11.2 | -15.7 | 0 | 1.5 | SSE | 66 | 1014 |
| 17:00 | 22:00 | -12.3 | -16.6 | 0.01 | 1.3 | SE | 75 | 1013 |
| 18:00 | 23:00 | -12.9 | -17.5 | 0.01 | 1.5 | SE | 74 | 1013 |
| 19:00 | 00:00 | -13.4 | -18 | 0.01 | 1.6 | SE | 76 | 1012 |
| 20:00 | 01:00 | -13.8 | -18.3 | 0.02 | 1.5 | SE | 79 | 1011 |
| 21:00 | 02:00 | -14.6 | -19.1 | 0.02 | 1.5 | SE | 83 | 1011 |
| 22:00 | 03:00 | -14.4 | -18.9 | 0.04 | 1.6 | SSE | 82 | 1011 |
| 23:00 | 04:00 | -15.1 | -19.7 | 0.05 | 1.6 | SSE | 82 | 1011 |
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 15 December 2017 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 (2026-07-17). 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 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Guildhall, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 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 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.