Home / Williamstown / 29 October 2018
Williamstown
United States · 29 October 2018
← 28 October 201830 October 2018 →
Average
11.9°C
low 8.5°C · high 14.5°C
Rainfall
0.9mm
dry day
Wind
5.3m/s
daily average
Humidity
67.1%
daily average
Cloud
34%
cover
Pressure
1010hPa
daily average
The temperature ranged from 8.5°C around 23:00 to 14.5°C around 16:00. Rain was recorded across 2 hours, from around 01:00 to 02:00 (0.9mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
15th percentile
Low temperature
51th percentile
Rainfall
76th percentile
Wind
93th 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 13.4°C, versus 11.9°C on this specific day.
Sun & daylight
Sunrise
07:25
Sunset
18:01
Day length
10h 36m
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 | 04:00 | 10.9°C | 7.6°C | 0.03 | 3.9 | SSE | 80 | 1008 |
| 01:00 | 05:00 | 11.4°C | 7.7°C | 0.33 | 4.6 | S | 78 | 1006 |
| 02:00 | 06:00 | 11.6°C | 7.4°C | 0.28 | 5.3 | SSW | 79 | 1006 |
| 03:00 | 07:00 | 11.5°C | 7.4°C | 0 | 5.3 | SSW | 80 | 1005 |
| 04:00 | 08:00 | 11.7°C | 7.6°C | 0 | 5.3 | SW | 80 | 1006 |
| 05:00 | 09:00 | 11.5°C | 7.1°C | 0 | 5.4 | WSW | 76 | 1006 |
| 06:00 | 10:00 | 11.1°C | 7.1°C | 0 | 4.9 | WSW | 78 | 1007 |
| 07:00 | 11:00 | 10.7°C | 6.4°C | 0 | 5.1 | WSW | 77 | 1007 |
| 08:00 | 12:00 | 10.7°C | 6.3°C | 0 | 5.1 | WSW | 77 | 1008 |
| 09:00 | 13:00 | 11.6°C | 7.4°C | 0 | 5.1 | WSW | 75 | 1009 |
| 10:00 | 14:00 | 12.4°C | 7.3°C | 0.03 | 6.2 | WSW | 68 | 1010 |
| 11:00 | 15:00 | 13.8°C | 7.4°C | 0.02 | 7.3 | W | 52 | 1010 |
| 12:00 | 16:00 | 13.7°C | 7.9°C | 0.04 | 6.7 | WNW | 57 | 1010 |
| 13:00 | 17:00 | 14.1°C | 8.5°C | 0.04 | 6.6 | WNW | 56 | 1010 |
| 14:00 | 18:00 | 13.8°C | 8.5°C | 0.07 | 6.3 | WNW | 59 | 1011 |
| 15:00 | 19:00 | 14°C | 9.2°C | 0.01 | 5.6 | WNW | 57 | 1011 |
| 16:00 | 20:00 | 14.5°C | 9.4°C | 0.06 | 5.7 | WNW | 54 | 1012 |
| 17:00 | 21:00 | 13.7°C | 8.9°C | 0.01 | 5.1 | WNW | 54 | 1012 |
| 18:00 | 22:00 | 12.5°C | 8.4°C | 0 | 4.4 | W | 61 | 1013 |
| 19:00 | 23:00 | 11.5°C | 6.8°C | 0 | 4.7 | W | 60 | 1014 |
| 20:00 | 00:00 | 10.8°C | 5.9°C | 0 | 4.9 | W | 60 | 1015 |
| 21:00 | 01:00 | 10.3°C | 5.6°C | 0 | 4.5 | W | 60 | 1015 |
| 22:00 | 02:00 | 9.4°C | 4.9°C | 0 | 4.1 | W | 62 | 1016 |
| 23:00 | 03:00 | 8.5°C | 4.3°C | 0 | 4 | W | 70 | 1016 |
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
- Williamstown — 39.750°, -75.000°, ERA5 grid cell center, 7.1 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 29 October 2018 specifically — not a monthly average. See the Williamstown 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 Williamstown, United States (39.75°N, 75.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Williamstown, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Williamstown, 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 Williamstown, 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.