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Arnold

United States · 24 October 2019

ArnoldUnited States6:34 PM localChange location
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← 23 October 201925 October 2019 →

Average

16.8°C

low 11.3°C · high 25.3°C

Rainfall

0mm

dry day

Wind

3.8m/s

daily average

Humidity

20.6%

daily average

Cloud

36%

cover

Pressure

1019hPa

daily average

The temperature ranged from 11.3°C around 05:00 to 25.3°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

92th percentile

Low temperature

99th percentile

Rainfall

76th percentile

Wind

96th 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 11.4°C, versus 16.8°C on this specific day.

Sun & daylight

Sunrise

07:18

Sunset

18:11

Day length

10h 53m

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 timeUTCTempFeelsRain mmWind m/sDirHumidity %Pressure hPa
00:0007:0013.9°C6.4°C06.6ENE231018
01:0008:0014.1°C6.7°C06.5ENE231018
02:0009:0012.9°C5.6°C06.2ENE211018
03:0010:0012.3°C5.6°C05.7ENE291018
04:0011:0011.6°C4.9°C05.7ENE271018
05:0012:0011.3°C4.7°C05.5ENE261018
06:0013:0011.5°C4.8°C05.4ENE241018
07:0014:0011.8°C5°C05.4ENE231019
08:0015:0011.5°C4.4°C05.5ENE161020
09:0016:0016.2°C9.6°C05ENE151021
10:0017:0019.7°C14.2°C03.7ENE131021
11:0018:0022.9°C19°C01.6E131020
12:0019:0024.2°C21.3°C00.2WSW121019
13:0020:0024.7°C21.1°C01.2W131019
14:0021:0025.3°C21.1°C02W111018
15:0022:0025.2°C20.8°C02.2W111018
16:0023:0024.5°C20.4°C02.1WNW131019
17:0000:0023.4°C19.3°C01.9WNW131019
18:0001:0020.1°C17.8°C01.6NW361019
19:0002:0017.4°C14°C01.6NE261020
20:0003:0013.4°C8.7°C02.9ENE271020
21:0004:0012°C6.4°C04.2ENE271020
22:0005:0011.7°C5.7°C04.5ENE261021
23:0006:0011.6°C5.6°C04.5ENE251021

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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
Arnold — 38.250°, -120.250°, ERA5 grid cell center, 8.8 km from requested point
Time zone
America/Los_Angeles
What's shown here
The hourly and daily record for 24 October 2019 specifically — not a monthly average. See the Arnold 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 (2026-07-21). Historical climate data for Arnold, United States (38.25°N, 120.25°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 Arnold, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Arnold, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 21, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Arnold, 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/}
}

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