Home / Keyes / 31 January 2019
Keyes
United States · 31 January 2019
← 30 January 20191 February 2019 →
Average
14.1°C
low 10.9°C · high 19.5°C
Rainfall
3.4mm
rain recorded
Wind
1.8m/s
daily average
Humidity
78.5%
daily average
Cloud
51%
cover
Pressure
1012hPa
daily average
The temperature ranged from 10.9°C around 01:00 to 19.5°C around 16:00. Rain was recorded across 7 hours, from around 00:00 to 06:00 (3.4mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
87th percentile
Low temperature
90th percentile
Rainfall
84th percentile
Wind
56th 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 10.9°C, versus 14.1°C on this specific day.
Sun & daylight
Sunrise
07:08
Sunset
17:26
Day length
10h 19m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Los_Angeles.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 08:00 | 12.6°C | 12.3°C | 0.13 | 0.5 | NNW | 85 | 1010 |
| 01:00 | 09:00 | 10.9°C | 10°C | 0.22 | 1.2 | N | 92 | 1010 |
| 02:00 | 10:00 | 12.2°C | 12.1°C | 0.35 | 0.4 | WNW | 87 | 1010 |
| 03:00 | 11:00 | 12.3°C | 11.3°C | 0.93 | 1.5 | WNW | 86 | 1010 |
| 04:00 | 12:00 | 11.7°C | 10.3°C | 0.63 | 2 | NW | 86 | 1010 |
| 05:00 | 13:00 | 12.2°C | 11.1°C | 0.77 | 1.6 | N | 87 | 1011 |
| 06:00 | 14:00 | 12.2°C | 12.1°C | 0.2 | 0.3 | WNW | 87 | 1011 |
| 07:00 | 15:00 | 12.7°C | 11.8°C | 0.09 | 1.4 | S | 85 | 1011 |
| 08:00 | 16:00 | 12.1°C | 10.7°C | 0.05 | 2.2 | S | 88 | 1012 |
| 09:00 | 17:00 | 13.4°C | 12.4°C | 0.02 | 1.8 | SE | 85 | 1012 |
| 10:00 | 18:00 | 13.8°C | 12.8°C | 0 | 2 | SE | 84 | 1013 |
| 11:00 | 19:00 | 15.3°C | 14.3°C | 0 | 2.3 | SSE | 81 | 1013 |
| 12:00 | 20:00 | 16.9°C | 15.5°C | 0 | 2.8 | S | 74 | 1013 |
| 13:00 | 21:00 | 17.7°C | 15.9°C | 0 | 2.8 | S | 62 | 1012 |
| 14:00 | 22:00 | 19.1°C | 17.9°C | 0 | 1.8 | S | 56 | 1012 |
| 15:00 | 23:00 | 19.3°C | 18.8°C | 0 | 0.7 | SSE | 53 | 1012 |
| 16:00 | 00:00 | 19.5°C | 18.6°C | 0 | 1.4 | ESE | 55 | 1012 |
| 17:00 | 01:00 | 17.2°C | 16.6°C | 0 | 1.6 | ESE | 69 | 1012 |
| 18:00 | 02:00 | 15.1°C | 13.8°C | 0 | 2 | ESE | 73 | 1012 |
| 19:00 | 03:00 | 13.2°C | 11.7°C | 0 | 2.3 | ESE | 83 | 1012 |
| 20:00 | 04:00 | 13°C | 11.2°C | 0 | 2.6 | SE | 81 | 1012 |
| 21:00 | 05:00 | 13°C | 10.9°C | 0 | 2.9 | SE | 80 | 1012 |
| 22:00 | 06:00 | 12.5°C | 10.5°C | 0 | 2.6 | SSE | 80 | 1013 |
| 23:00 | 07:00 | 11.6°C | 9.9°C | 0 | 2.1 | S | 83 | 1013 |
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
- Keyes — 37.500°, -121.000°, ERA5 grid cell center, 9.8 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- The hourly and daily record for 31 January 2019 specifically — not a monthly average. See the Keyes 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 Keyes, United States (37.50°N, 121.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Keyes, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Keyes, 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 Keyes, 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.