Marfa
United States · 20 August 2018
← 19 August 201821 August 2018 →
Average
24.6°C
low 20.2°C · high 29.1°C
Rainfall
0.4mm
dry day
Wind
2.8m/s
daily average
Humidity
61.6%
daily average
Cloud
48%
cover
Pressure
1016hPa
daily average
The temperature ranged from 20.2°C around 05:00 to 29.1°C around 16:00. Rain was recorded for one hour, around 18:00 (0.4mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
36th percentile
Low temperature
66th percentile
Rainfall
57th percentile
Wind
37th 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 24.8°C, versus 24.6°C on this specific day.
Sun & daylight
Sunrise
07:26
Sunset
20:32
Day length
13h 6m
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 | 22.2°C | 23.9°C | 0 | 2.5 | SSE | 84 | 1014 |
| 01:00 | 06:00 | 22.5°C | 23.5°C | 0 | 2.8 | SSE | 78 | 1014 |
| 02:00 | 07:00 | 22.6°C | 23.5°C | 0 | 2.7 | SE | 75 | 1014 |
| 03:00 | 08:00 | 21.5°C | 22.5°C | 0 | 2.2 | SE | 78 | 1014 |
| 04:00 | 09:00 | 21.4°C | 22.3°C | 0 | 2.1 | ESE | 76 | 1014 |
| 05:00 | 10:00 | 20.2°C | 20°C | 0 | 3.2 | ESE | 77 | 1015 |
| 06:00 | 11:00 | 20.5°C | 20.6°C | 0 | 2.6 | E | 75 | 1015 |
| 07:00 | 12:00 | 20.2°C | 20.8°C | 0 | 2.2 | E | 78 | 1016 |
| 08:00 | 13:00 | 20.9°C | 21.7°C | 0 | 2.1 | E | 78 | 1017 |
| 09:00 | 14:00 | 22.1°C | 23.2°C | 0 | 1.9 | E | 72 | 1018 |
| 10:00 | 15:00 | 24.6°C | 25°C | 0 | 2.2 | ESE | 60 | 1018 |
| 11:00 | 16:00 | 25.7°C | 26.2°C | 0.01 | 2.1 | ESE | 55 | 1018 |
| 12:00 | 17:00 | 27.7°C | 28.3°C | 0.04 | 2.2 | E | 51 | 1018 |
| 13:00 | 18:00 | 27.9°C | 27.7°C | 0.01 | 2.9 | E | 47 | 1018 |
| 14:00 | 19:00 | 27.9°C | 27.6°C | 0.05 | 3.3 | E | 49 | 1017 |
| 15:00 | 20:00 | 28.5°C | 28.2°C | 0.03 | 3.3 | E | 47 | 1017 |
| 16:00 | 21:00 | 29.1°C | 28.5°C | 0.02 | 3.5 | E | 44 | 1016 |
| 17:00 | 22:00 | 28.7°C | 27.6°C | 0.01 | 3.7 | ESE | 43 | 1016 |
| 18:00 | 23:00 | 28.4°C | 27°C | 0.21 | 4.2 | ESE | 44 | 1016 |
| 19:00 | 00:00 | 27.5°C | 26.2°C | 0 | 4.5 | ESE | 48 | 1015 |
| 20:00 | 01:00 | 26.9°C | 25.8°C | 0 | 3.8 | ESE | 48 | 1016 |
| 21:00 | 02:00 | 25.5°C | 25.4°C | 0 | 2.5 | E | 53 | 1016 |
| 22:00 | 03:00 | 24.1°C | 24.1°C | 0 | 2.6 | E | 59 | 1017 |
| 23:00 | 04:00 | 23.7°C | 23.4°C | 0 | 2.9 | E | 60 | 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 20 August 2018 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 (2026-07-20). 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 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Marfa, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 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 2026-07-20},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.