Home / Arnold / 30 October 2019
Arnold
United States · 30 October 2019
← 29 October 201931 October 2019 →
Average
7°C
low 0.5°C · high 14.7°C
Rainfall
0mm
dry day
Wind
2.8m/s
daily average
Humidity
22.9%
daily average
Cloud
0%
cover
Pressure
1020hPa
daily average
The temperature ranged from 0.5°C around 23:00 to 14.7°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
30th percentile
Low temperature
9th percentile
Rainfall
70th percentile
Wind
83th 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 10.1°C, versus 7°C on this specific day.
Sun & daylight
Sunrise
07:24
Sunset
18:03
Day length
10h 39m
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 | 07:00 | 4.5°C | -2.7°C | 0 | 5.1 | ENE | 15 | 1016 |
| 01:00 | 08:00 | 4.5°C | -2.4°C | 0 | 4.8 | ENE | 16 | 1016 |
| 02:00 | 09:00 | 4.1°C | -2.7°C | 0 | 4.7 | ENE | 17 | 1017 |
| 03:00 | 10:00 | 3.1°C | -3.5°C | 0 | 4.5 | ENE | 20 | 1017 |
| 04:00 | 11:00 | 2°C | -4.6°C | 0 | 4.4 | ENE | 21 | 1017 |
| 05:00 | 12:00 | 2°C | -4.4°C | 0 | 4.1 | ENE | 21 | 1017 |
| 06:00 | 13:00 | 1.9°C | -4.4°C | 0 | 4 | ENE | 21 | 1018 |
| 07:00 | 14:00 | 2°C | -4.4°C | 0 | 4 | ENE | 20 | 1019 |
| 08:00 | 15:00 | 2.7°C | -3.5°C | 0 | 3.9 | ENE | 19 | 1019 |
| 09:00 | 16:00 | 6.8°C | 1.3°C | 0 | 2.9 | ENE | 17 | 1020 |
| 10:00 | 17:00 | 10.7°C | 6.4°C | 0 | 1.2 | SE | 14 | 1021 |
| 11:00 | 18:00 | 12.2°C | 7.6°C | 0 | 1.9 | S | 15 | 1021 |
| 12:00 | 19:00 | 12.9°C | 8.1°C | 0 | 2.2 | SSW | 15 | 1021 |
| 13:00 | 20:00 | 13.1°C | 8.4°C | 0 | 2.3 | SW | 16 | 1021 |
| 14:00 | 21:00 | 13.8°C | 9.1°C | 0 | 2.3 | SW | 17 | 1020 |
| 15:00 | 22:00 | 14.7°C | 10.1°C | 0 | 2.2 | SW | 16 | 1020 |
| 16:00 | 23:00 | 13.8°C | 9.5°C | 0 | 1.8 | WSW | 18 | 1021 |
| 17:00 | 00:00 | 12.7°C | 8.3°C | 0 | 1.8 | WSW | 18 | 1021 |
| 18:00 | 01:00 | 10.5°C | 6.7°C | 0 | 1.4 | W | 28 | 1021 |
| 19:00 | 02:00 | 10°C | 6.4°C | 0 | 0.8 | N | 24 | 1022 |
| 20:00 | 03:00 | 5.1°C | 1.5°C | 0 | 1.3 | ENE | 43 | 1023 |
| 21:00 | 04:00 | 3.2°C | -0.9°C | 0 | 1.8 | ENE | 44 | 1023 |
| 22:00 | 05:00 | 1.5°C | -2.8°C | 0 | 2 | ENE | 46 | 1023 |
| 23:00 | 06:00 | 0.5°C | -3.7°C | 0 | 1.8 | ENE | 48 | 1023 |
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
- 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 30 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
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/
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/
"Historical Climate Data for Arnold, 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 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/}
}Notice something wrong with this data? Report a data issue.