Home / Williamson / 18 January 2016
Williamson
United States · 18 January 2016
← 17 January 201619 January 2016 →
Average
5.5°C
low 0.5°C · high 13.7°C
Rainfall
0mm
dry day
Wind
2.5m/s
daily average
Humidity
48.4%
daily average
Cloud
79%
cover
Pressure
1020hPa
daily average
The temperature ranged from 0.5°C around 02:00 to 13.7°C around 14:00. 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
72th percentile
Low temperature
69th percentile
Rainfall
61th percentile
Wind
65th 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 4°C, versus 5.5°C on this specific day.
Sun & daylight
Sunrise
07:36
Sunset
17:44
Day length
10h 9m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Phoenix.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 07:00 | 1.8°C | -1.4°C | 0 | 0.8 | W | 61 | 1022 |
| 01:00 | 08:00 | 0.8°C | -2°C | 0 | 0.3 | SSW | 64 | 1021 |
| 02:00 | 09:00 | 0.5°C | -2.8°C | 0 | 1 | WSW | 67 | 1021 |
| 03:00 | 10:00 | 1.3°C | -2.3°C | 0 | 1.2 | W | 59 | 1022 |
| 04:00 | 11:00 | 1.2°C | -2°C | 0 | 0.6 | WSW | 59 | 1021 |
| 05:00 | 12:00 | 1.6°C | -1.8°C | 0 | 1 | S | 58 | 1021 |
| 06:00 | 13:00 | 1.6°C | -2.1°C | 0 | 1.4 | S | 59 | 1021 |
| 07:00 | 14:00 | 1.2°C | -2.9°C | 0 | 2 | S | 58 | 1021 |
| 08:00 | 15:00 | 2.8°C | -1.5°C | 0 | 2.2 | S | 53 | 1021 |
| 09:00 | 16:00 | 4.9°C | 0.7°C | 0 | 2.1 | S | 45 | 1022 |
| 10:00 | 17:00 | 8°C | 3.7°C | 0 | 2.4 | SSE | 37 | 1022 |
| 11:00 | 18:00 | 9°C | 4.3°C | 0 | 3 | SSE | 36 | 1021 |
| 12:00 | 19:00 | 10.8°C | 5.2°C | 0 | 4 | S | 28 | 1020 |
| 13:00 | 20:00 | 12.7°C | 6.6°C | 0 | 4.6 | SSW | 23 | 1019 |
| 14:00 | 21:00 | 13.7°C | 7.1°C | 0 | 5.2 | SW | 19 | 1018 |
| 15:00 | 22:00 | 13°C | 6.5°C | 0 | 5.1 | SW | 20 | 1017 |
| 16:00 | 23:00 | 12.4°C | 6.1°C | 0 | 4.7 | SW | 21 | 1017 |
| 17:00 | 00:00 | 11.3°C | 6.1°C | 0 | 3.3 | SW | 26 | 1017 |
| 18:00 | 01:00 | 7.5°C | 2.8°C | 0 | 3 | SW | 41 | 1018 |
| 19:00 | 02:00 | 6.4°C | 1.9°C | 0 | 2.7 | SSW | 46 | 1018 |
| 20:00 | 03:00 | 3.5°C | -0.8°C | 0 | 2.7 | SW | 61 | 1019 |
| 21:00 | 04:00 | 1.7°C | -2.3°C | 0 | 2.3 | SW | 72 | 1019 |
| 22:00 | 05:00 | 1.8°C | -2.1°C | 0 | 2.3 | WSW | 74 | 1020 |
| 23:00 | 06:00 | 2.1°C | -1.6°C | 0 | 1.9 | WSW | 73 | 1021 |
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
- Williamson — 34.750°, -112.500°, ERA5 grid cell center, 7.7 km from requested point
- Time zone
- America/Phoenix
- What's shown here
- The hourly and daily record for 18 January 2016 specifically — not a monthly average. See the Williamson 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 Williamson, United States (34.75°N, 112.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Williamson, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Williamson, 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 Williamson, 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.