Marfa
United States · 21 August 2017
← 20 August 201722 August 2017 →
Average
23.7°C
low 18.7°C · high 29.4°C
Rainfall
5.1mm
rain recorded
Wind
2.5m/s
daily average
Humidity
61%
daily average
Cloud
62%
cover
Pressure
1017hPa
daily average
The temperature ranged from 18.7°C around 05:00 to 29.4°C around 17:00. Rain was recorded across 5 hours, from around 02:00 to 20:00 (5.1mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
37th percentile
Low temperature
43th percentile
Rainfall
87th percentile
Wind
21th 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 24.9°C, versus 23.7°C on this specific day.
Sun & daylight
Sunrise
07:26
Sunset
20:30
Day length
13h 4m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 22.1°C | 23.1°C | 0 | 1 | NNE | 65 | 1018 |
| 01:00 | 06:00 | 22.4°C | 23.4°C | 0 | 0.5 | NNW | 59 | 1018 |
| 02:00 | 07:00 | 23°C | 23.6°C | 0.79 | 0.7 | NNW | 56 | 1018 |
| 03:00 | 08:00 | 22.6°C | 22.9°C | 0.65 | 1.2 | NNE | 57 | 1017 |
| 04:00 | 09:00 | 21.3°C | 21°C | 0.2 | 1.9 | ENE | 60 | 1017 |
| 05:00 | 10:00 | 18.7°C | 20°C | 0 | 1 | E | 86 | 1018 |
| 06:00 | 11:00 | 18.9°C | 19.9°C | 0 | 1.5 | ESE | 84 | 1018 |
| 07:00 | 12:00 | 19°C | 19.7°C | 0 | 1.7 | SE | 82 | 1017 |
| 08:00 | 13:00 | 19.4°C | 19.6°C | 0 | 2.1 | SSE | 77 | 1018 |
| 09:00 | 14:00 | 21.1°C | 20.9°C | 0 | 2.6 | S | 68 | 1019 |
| 10:00 | 15:00 | 22.7°C | 21.2°C | 0 | 3.7 | S | 56 | 1019 |
| 11:00 | 16:00 | 23.8°C | 22°C | 0 | 4.4 | S | 54 | 1018 |
| 12:00 | 17:00 | 25.3°C | 23.3°C | 0 | 4.4 | S | 49 | 1018 |
| 13:00 | 18:00 | 26.1°C | 24.5°C | 0 | 4 | S | 47 | 1018 |
| 14:00 | 19:00 | 26.8°C | 25.8°C | 0.01 | 3.6 | S | 47 | 1017 |
| 15:00 | 20:00 | 28.5°C | 27.6°C | 0.01 | 3.3 | S | 43 | 1016 |
| 16:00 | 21:00 | 29.2°C | 28.2°C | 0.02 | 3 | S | 39 | 1016 |
| 17:00 | 22:00 | 29.4°C | 29°C | 0.01 | 2.7 | SSE | 40 | 1014 |
| 18:00 | 23:00 | 29°C | 28.9°C | 0.04 | 2.1 | S | 40 | 1014 |
| 19:00 | 00:00 | 25.6°C | 27.1°C | 2.04 | 1.7 | N | 62 | 1016 |
| 20:00 | 01:00 | 25°C | 25.9°C | 1.32 | 3.4 | NE | 70 | 1017 |
| 21:00 | 02:00 | 24.4°C | 25.2°C | 0 | 3.3 | ENE | 71 | 1017 |
| 22:00 | 03:00 | 22.6°C | 23.7°C | 0 | 2.7 | ENE | 77 | 1017 |
| 23:00 | 04:00 | 22.8°C | 24.1°C | 0.01 | 2.3 | ENE | 75 | 1018 |
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
- Marfa — 30.250°, -104.000°, ERA5 grid cell center, 7.0 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 21 August 2017 specifically — not a monthly average. See the Marfa 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 Marfa, United States (30.25°N, 104.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Marfa, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Marfa, 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 Marfa, 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.