Home / Keyes / 28 January 2023

Keyes

United States · 28 January 2023

← 27 January 202329 January 2023 →

Average

10.2°C

low 6.2° · high 16.5°

Rainfall

0mm

dry day

Wind

1.5m/s

daily average

Humidity

75%

daily average

Cloud

6%

cover

Pressure

1015hPa

daily average

The temperature ranged from 6.2°C around 07:00 to 16.5°C around 15:00. 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

53th percentile

Low temperature

47th percentile

Rainfall

62th percentile

Wind

33th 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 11.1°C, versus 10.2°C on this specific day.

Sun & daylight

Sunrise

07:10

Sunset

17:23

Day length

10h 13m

Hour by hour

Temperature (line) and hourly rainfall (bars), local time — America/Los_Angeles.

↓ Download CSV
00:0006:0012:0018:0023:00

Cumulative rainfall through the day.

00:0006:0012:0018:0023:00
Local timeUTCTemp °CFeels °CRain mmWind m/sDirHumidity %Pressure hPa
00:0008:007.14.801.8WNW881016
01:0009:006.94.401.9NW871016
02:0010:006.94.601.7NW861017
03:0011:007.24.801.7WNW861017
04:0012:006.63.802.3W871017
05:0013:006.94.501.8WNW881016
06:0014:006.94.102.5NW891017
07:0015:006.2401.5WNW901017
08:0016:006.44.800.6SW901017
09:0017:007.66.200.6WSW851017
10:0018:009.28.100.3NW801018
11:0019:00119.400.8N691018
12:0020:001311.500.8NNE611017
13:0021:0014.913.100.8NNE501015
14:0022:0015.513.501.5NE531014
15:0023:0016.514.701.3ENE501014
16:0000:0016.114.201.5ENE511014
17:0001:0014.412.302.1ENE611014
18:0002:0011.89.302.3ENE681014
19:0003:0010.48.501.5NE741014
20:0004:0011.910.600.8SE711014
21:0005:0011.19.501.3SW761013
22:0006:0010.18.101.7SW781014
23:0007:009.16.702SW811013

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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 28 January 2023 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

Plain text
PastClimate (2026-07-17). 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/
APA
PastClimate. (2026). Historical climate data for Keyes, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Keyes, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
BibTeX
@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 2026-07-17},
  url = {https://www.pastclimate.com/}
}

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