Home / Cotati / 22 October 2021
Cotati
United States · 22 October 2021
← 21 October 202123 October 2021 →
Average
14.5°C
low 12.1°C · high 16.6°C
Rainfall
15.1mm
rain recorded
Wind
3.3m/s
daily average
Humidity
85.3%
daily average
Cloud
88%
cover
Pressure
1016hPa
daily average
The temperature ranged from 12.1°C around 08:00 to 16.6°C around 15:00. Rain was recorded across 8 hours, from around 00:00 to 07:00 (15.2mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
2th percentile
Low temperature
79th percentile
Rainfall
99th percentile
Wind
87th 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 15.6°C, versus 14.5°C on this specific day.
Sun & daylight
Sunrise
07:27
Sunset
18:23
Day length
10h 56m
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 | 16.2°C | 14.3°C | 0.1 | 4.8 | SSE | 90 | 1016 |
| 01:00 | 08:00 | 16.1°C | 13.6°C | 0.38 | 5.6 | SSE | 90 | 1015 |
| 02:00 | 09:00 | 15.8°C | 13°C | 0.58 | 6.2 | SSE | 93 | 1014 |
| 03:00 | 10:00 | 15.7°C | 13.4°C | 1.25 | 5.2 | S | 92 | 1014 |
| 04:00 | 11:00 | 14.6°C | 12.2°C | 3.8 | 5.1 | SW | 95 | 1013 |
| 05:00 | 12:00 | 13.7°C | 11.6°C | 4.22 | 4.4 | W | 94 | 1014 |
| 06:00 | 13:00 | 13°C | 11.2°C | 3.22 | 3.4 | WNW | 93 | 1014 |
| 07:00 | 14:00 | 12.6°C | 11.3°C | 1.47 | 2.6 | W | 94 | 1015 |
| 08:00 | 15:00 | 12.1°C | 11°C | 0.05 | 2.3 | W | 96 | 1015 |
| 09:00 | 16:00 | 12.9°C | 11.5°C | 0.01 | 2.7 | W | 92 | 1016 |
| 10:00 | 17:00 | 13.8°C | 12.2°C | 0.06 | 3.1 | W | 86 | 1017 |
| 11:00 | 18:00 | 15.1°C | 13.5°C | 0.02 | 2.9 | W | 78 | 1017 |
| 12:00 | 19:00 | 15.8°C | 14.3°C | 0 | 2.7 | WSW | 75 | 1017 |
| 13:00 | 20:00 | 16.3°C | 14.4°C | 0 | 3.2 | WSW | 72 | 1017 |
| 14:00 | 21:00 | 16.1°C | 14.1°C | 0 | 3.4 | WSW | 73 | 1016 |
| 15:00 | 22:00 | 16.6°C | 14.5°C | 0 | 3.4 | WSW | 70 | 1016 |
| 16:00 | 23:00 | 16.3°C | 14.4°C | 0 | 3.2 | WSW | 71 | 1016 |
| 17:00 | 00:00 | 16°C | 14.2°C | 0 | 3.1 | WSW | 72 | 1016 |
| 18:00 | 01:00 | 15.1°C | 13.4°C | 0 | 2.8 | W | 76 | 1016 |
| 19:00 | 02:00 | 14.2°C | 13.1°C | 0 | 2 | W | 82 | 1016 |
| 20:00 | 03:00 | 13.1°C | 12.2°C | 0 | 1.8 | W | 88 | 1016 |
| 21:00 | 04:00 | 12.6°C | 11.9°C | 0 | 1.5 | W | 91 | 1016 |
| 22:00 | 05:00 | 12.4°C | 11.5°C | 0 | 1.6 | W | 91 | 1016 |
| 23:00 | 06:00 | 12.1°C | 11.4°C | 0 | 1.5 | W | 92 | 1016 |
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
- Cotati — 38.250°, -122.750°, 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 22 October 2021 specifically — not a monthly average. See the Cotati 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 (2026-07-19). Historical climate data for Cotati, United States (38.25°N, 122.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Cotati, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Cotati, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 19, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Cotati, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-19},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.