Pasadena
United States · 9 July 2018
Average
26°C
low 23.6° · high 28.9°
Rainfall
30mm
rain recorded
Wind
1.3m/s
daily average
Humidity
88.5%
daily average
Cloud
100%
cover
Pressure
1020hPa
daily average
The temperature ranged from 23.6°C around 05:00 to 28.9°C around 12:00. Rain was recorded across 17 hours, from around 01:00 to 18:00 (30mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
3th percentile
Low temperature
7th percentile
Rainfall
98th percentile
Wind
5th 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 28.8°C, versus 26°C on this specific day.
Sun & daylight
Sunrise
06:27
Sunset
20:24
Day length
13h 57m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 24.9 | 29.2 | 0.02 | 2.3 | SSE | 96 | 1019 |
| 01:00 | 06:00 | 24.4 | 28.5 | 0.16 | 2.2 | SSE | 96 | 1019 |
| 02:00 | 07:00 | 24.4 | 28.7 | 3.16 | 1.8 | SSE | 96 | 1019 |
| 03:00 | 08:00 | 24.4 | 29.3 | 2.34 | 1.1 | SSW | 96 | 1019 |
| 04:00 | 09:00 | 24 | 28.9 | 1.38 | 0.7 | ESE | 96 | 1019 |
| 05:00 | 10:00 | 23.6 | 28.8 | 1.33 | 0.3 | ENE | 98 | 1018 |
| 06:00 | 11:00 | 23.7 | 28.3 | 0.95 | 1.3 | S | 98 | 1020 |
| 07:00 | 12:00 | 23.8 | 28.5 | 1.14 | 1.2 | SSW | 98 | 1021 |
| 08:00 | 13:00 | 24.2 | 29.1 | 1.2 | 1.4 | SSW | 99 | 1021 |
| 09:00 | 14:00 | 24.8 | 29.7 | 1.04 | 1.7 | SW | 97 | 1022 |
| 10:00 | 15:00 | 27.1 | 31.7 | 1.12 | 1.6 | WSW | 83 | 1022 |
| 11:00 | 16:00 | 28.4 | 33.5 | 0.62 | 1.5 | W | 80 | 1022 |
| 12:00 | 17:00 | 28.9 | 34.1 | 0.09 | 1.5 | WSW | 77 | 1022 |
| 13:00 | 18:00 | 28.3 | 32.8 | 0.1 | 1.6 | SW | 77 | 1022 |
| 14:00 | 19:00 | 28 | 31.6 | 0.91 | 1.6 | SSW | 70 | 1021 |
| 15:00 | 20:00 | 28.1 | 31.5 | 3.64 | 1.7 | SSW | 69 | 1020 |
| 16:00 | 21:00 | 26.8 | 31.5 | 8.75 | 1 | WSW | 81 | 1020 |
| 17:00 | 22:00 | 26.9 | 32.7 | 1.75 | 0.2 | SSE | 85 | 1020 |
| 18:00 | 23:00 | 27.9 | 33.6 | 0.25 | 0.9 | ENE | 84 | 1020 |
| 19:00 | 00:00 | 27.5 | 33.4 | 0.03 | 0.4 | E | 84 | 1020 |
| 20:00 | 01:00 | 27.1 | 32.1 | 0 | 1.4 | E | 84 | 1020 |
| 21:00 | 02:00 | 26.3 | 31.2 | 0 | 1.5 | E | 88 | 1020 |
| 22:00 | 03:00 | 25.3 | 30.3 | 0 | 1.8 | E | 97 | 1021 |
| 23:00 | 04:00 | 25.4 | 30.5 | 0 | 1.7 | SE | 96 | 1021 |
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
- Pasadena — 29.750°, -95.250°, ERA5 grid cell center, 7.7 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 9 July 2018 specifically — not a monthly average. See the Pasadena 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 Pasadena, United States (29.75°N, 95.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Pasadena, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Pasadena, 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 Pasadena, 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.