Home / Aptos / 21 October 2016
Aptos
United States · 21 October 2016
← 20 October 201622 October 2016 →
Average
16.3°C
low 14.8° · high 18.6°
Rainfall
0mm
dry day
Wind
4.1m/s
daily average
Humidity
81.7%
daily average
Cloud
24%
cover
Pressure
1013hPa
daily average
The temperature ranged from 14.8°C around 04:00 to 18.6°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
74th percentile
Low temperature
87th percentile
Rainfall
80th percentile
Wind
93th 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 15.3°C, versus 16.3°C on this specific day.
Sun & daylight
Sunrise
07:21
Sunset
18:22
Day length
11h 1m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Los_Angeles.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 07:00 | 16 | 13.4 | 0 | 4.5 | N | 77 | 1015 |
| 01:00 | 08:00 | 15.8 | 13.6 | 0 | 3.9 | N | 77 | 1015 |
| 02:00 | 09:00 | 15.5 | 13.5 | 0 | 3.6 | N | 78 | 1015 |
| 03:00 | 10:00 | 15.2 | 13.2 | 0 | 3.4 | N | 78 | 1015 |
| 04:00 | 11:00 | 14.8 | 12.4 | 0 | 4.2 | N | 80 | 1014 |
| 05:00 | 12:00 | 14.9 | 12.1 | 0 | 4.6 | N | 80 | 1014 |
| 06:00 | 13:00 | 14.9 | 12.4 | 0 | 4.2 | N | 79 | 1014 |
| 07:00 | 14:00 | 14.9 | 12.6 | 0 | 4 | NNW | 81 | 1014 |
| 08:00 | 15:00 | 15.1 | 12.3 | 0 | 4.8 | NNW | 81 | 1014 |
| 09:00 | 16:00 | 15.7 | 13.3 | 0 | 4.7 | NNW | 82 | 1015 |
| 10:00 | 17:00 | 16.5 | 14.7 | 0 | 4.1 | NNW | 81 | 1015 |
| 11:00 | 18:00 | 17.1 | 15.8 | 0 | 3.5 | NNW | 81 | 1015 |
| 12:00 | 19:00 | 17.6 | 16.7 | 0 | 3.2 | NW | 80 | 1014 |
| 13:00 | 20:00 | 18.1 | 17.1 | 0 | 3.4 | NW | 79 | 1014 |
| 14:00 | 21:00 | 18.4 | 16.9 | 0 | 4 | WNW | 77 | 1013 |
| 15:00 | 22:00 | 18.6 | 16.9 | 0 | 4.5 | WNW | 76 | 1012 |
| 16:00 | 23:00 | 18.4 | 16.4 | 0 | 5 | NW | 78 | 1012 |
| 17:00 | 00:00 | 17.9 | 15.6 | 0 | 5.4 | NW | 81 | 1012 |
| 18:00 | 01:00 | 17.4 | 14.8 | 0 | 5.9 | NW | 85 | 1012 |
| 19:00 | 02:00 | 16.5 | 14.3 | 0 | 5.4 | NNW | 88 | 1012 |
| 20:00 | 03:00 | 16 | 14.4 | 0 | 4.3 | NNW | 91 | 1012 |
| 21:00 | 04:00 | 15.8 | 14.8 | 0 | 3.4 | NNW | 91 | 1012 |
| 22:00 | 05:00 | 15.5 | 15 | 0 | 2.6 | NNW | 91 | 1012 |
| 23:00 | 06:00 | 15.6 | 15.1 | 0 | 2.6 | NNW | 91 | 1012 |
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
- Aptos — 37.000°, -122.000°, ERA5 grid cell center, 9.3 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- The hourly and daily record for 21 October 2016 specifically — not a monthly average. See the Aptos 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 (2026-07-17). Historical climate data for Aptos, United States (37.00°N, 122.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Aptos, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Aptos, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Aptos, 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/}
}Notice something wrong with this data? Report a data issue.