Home / Walnut / 5 February 2017

Walnut

United States · 5 February 2017

WalnutUnited States10:00 AM localChange location

← 4 February 20176 February 2017 →

Average

11.2°C

low 9.6° · high 13.6°

Rainfall

0.4mm

dry day

Wind

1.2m/s

daily average

Humidity

86.2%

daily average

Cloud

84%

cover

Pressure

1017hPa

daily average

The temperature ranged from 9.6°C around 05:00 to 13.6°C around 14:00. Rain was recorded across 2 hours, from around 17:00 to 18:00 (0.4mm total).

How unusual was this day?

Compared against the same 135 calendar days (±7 days) across the other 9 years on file.

High temperature

20th percentile

Low temperature

77th percentile

Rainfall

76th percentile

Wind

18th 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 12.5°C, versus 11.2°C on this specific day.

Sun & daylight

Sunrise

06:44

Sunset

17:25

Day length

10h 41m

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
00:0008:0011.711.400.5ESE891019
01:0009:0011.31100.5E931018
02:0010:0010.910.401E961017
03:0011:0010.710.200.6ESE931016
04:0012:009.99.300.4S911016
05:0013:009.68.500.8SW881016
06:0014:009.9900.6S881016
07:0015:0010.49.200.8SSE821017
08:0016:00108.601SW821018
09:0017:0010.58.202.5SW841019
10:0018:0011.410.101.5SSW841018
11:0019:0012.511.301.3SSE781017
12:0020:0013.111.801.4SSE751016
13:0021:0013.512.201.5S751015
14:0022:0013.612.101.8S741015
15:0023:0012.710.702.4SSW771016
16:0000:0012.511.101.5SSW781016
17:0001:0012.2110.141.4SE801015
18:0002:0011.710.70.21.4SW871016
19:0003:0010.18.90.031.3SW931017
20:0004:0010.39.201.4SW951017
21:0005:009.88.901.2SSW981018
22:0006:0010.29.101.3S951018
23:0007:0010.510.10.050.7SSE971018

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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
Walnut — 34.000°, -117.750°, ERA5 grid cell center, 10.9 km from requested point
Time zone
America/Los_Angeles
What's shown here
The hourly and daily record for 5 February 2017 specifically — not a monthly average. See the Walnut 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 Walnut, United States (34.00°N, 117.75°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 Walnut, 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 Walnut, 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 Walnut, 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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