Home / Williamson / 27 February 2017
Williamson
United States · 27 February 2017
← 26 February 201728 February 2017 →
Average
4.2°C
low 3° · high 5.9°
Rainfall
16.6mm
rain recorded
Wind
4.6m/s
daily average
Humidity
80.7%
daily average
Cloud
91%
cover
Pressure
1013hPa
daily average
The temperature ranged from 3°C around 03:00 to 5.9°C around 11:00. Rain was recorded across 12 hours, from around 12:00 to 23:00 (16.6mm total).
How unusual was this day?
Compared against the same 138 calendar days (±7 days) across the other 9 years on file.
High temperature
11th percentile
Low temperature
78th percentile
Rainfall
99th percentile
Wind
91th 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 6.4°C, versus 4.2°C on this specific day.
Sun & daylight
Sunrise
07:01
Sunset
18:24
Day length
11h 23m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Phoenix.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 07:00 | 3.9 | -0.1 | 0 | 2.4 | S | 62 | 1013 |
| 01:00 | 08:00 | 3.7 | -0.3 | 0 | 2.6 | S | 70 | 1013 |
| 02:00 | 09:00 | 3.5 | -0.7 | 0 | 3 | S | 73 | 1013 |
| 03:00 | 10:00 | 3 | -1.4 | 0 | 3 | S | 70 | 1013 |
| 04:00 | 11:00 | 3.4 | -1.2 | 0 | 3.4 | S | 69 | 1013 |
| 05:00 | 12:00 | 3.4 | -1.4 | 0 | 3.8 | S | 72 | 1013 |
| 06:00 | 13:00 | 3.5 | -1.5 | 0 | 4.1 | S | 72 | 1013 |
| 07:00 | 14:00 | 3.7 | -1.4 | 0 | 4.1 | S | 71 | 1014 |
| 08:00 | 15:00 | 4.8 | -0.5 | 0 | 4.5 | S | 68 | 1015 |
| 09:00 | 16:00 | 5.4 | -0.6 | 0 | 5.7 | S | 65 | 1015 |
| 10:00 | 17:00 | 5.6 | -1.4 | 0 | 6.9 | S | 64 | 1014 |
| 11:00 | 18:00 | 5.9 | -0.8 | 0.02 | 6.9 | S | 71 | 1014 |
| 12:00 | 19:00 | 5.9 | 0 | 0.6 | 6.1 | S | 77 | 1015 |
| 13:00 | 20:00 | 5.2 | -0.8 | 0.79 | 6.6 | S | 90 | 1014 |
| 14:00 | 21:00 | 4.1 | -1.7 | 1.04 | 6.4 | S | 100 | 1013 |
| 15:00 | 22:00 | 3.7 | -1.3 | 1.57 | 5.1 | S | 100 | 1012 |
| 16:00 | 23:00 | 4 | -1.1 | 0.99 | 5.3 | S | 97 | 1013 |
| 17:00 | 00:00 | 3.9 | -0.8 | 1.1 | 4.5 | S | 93 | 1012 |
| 18:00 | 01:00 | 4 | -0.9 | 1.23 | 4.7 | SSE | 89 | 1012 |
| 19:00 | 02:00 | 4.2 | -0.9 | 1.59 | 5 | SSE | 89 | 1012 |
| 20:00 | 03:00 | 3.6 | -0.9 | 1.47 | 4.2 | SSE | 96 | 1012 |
| 21:00 | 04:00 | 3.9 | -0.7 | 1.82 | 4.4 | S | 93 | 1011 |
| 22:00 | 05:00 | 3.9 | -0.8 | 2.13 | 4.5 | S | 93 | 1011 |
| 23:00 | 06:00 | 4.2 | -0.3 | 2.2 | 4.2 | SSW | 92 | 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
- 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 27 February 2017 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 (2026-07-18). 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 18, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Williamson, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 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 2026-07-18},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.