Home / Hereford / 20 August 2017
Hereford
United States · 20 August 2017
← 19 August 201721 August 2017 →
Average
23.5°C
low 18.4°C · high 30.7°C
Rainfall
1.8mm
rain recorded
Wind
4.7m/s
daily average
Humidity
62.4%
daily average
Cloud
59%
cover
Pressure
1014hPa
daily average
The temperature ranged from 18.4°C around 05:00 to 30.7°C around 16:00. Rain was recorded across 3 hours, from around 17:00 to 19:00 (1.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
29th percentile
Low temperature
40th percentile
Rainfall
86th percentile
Wind
77th 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 25.5°C, versus 23.5°C on this specific day.
Sun & daylight
Sunrise
07:14
Sunset
20:31
Day length
13h 17m
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 | 21.1°C | 0 | 4.2 | S | 68 | 1014 |
| 01:00 | 06:00 | 22°C | 21.3°C | 0 | 3.9 | S | 68 | 1014 |
| 02:00 | 07:00 | 21.9°C | 21°C | 0 | 3.7 | S | 66 | 1014 |
| 03:00 | 08:00 | 20.6°C | 19.5°C | 0 | 3.6 | S | 68 | 1013 |
| 04:00 | 09:00 | 19.6°C | 18.2°C | 0 | 3.8 | S | 70 | 1013 |
| 05:00 | 10:00 | 18.4°C | 16.1°C | 0 | 5 | SSW | 75 | 1014 |
| 06:00 | 11:00 | 19.1°C | 16.7°C | 0 | 5.1 | SSW | 72 | 1014 |
| 07:00 | 12:00 | 19°C | 17°C | 0 | 4.4 | SSW | 70 | 1014 |
| 08:00 | 13:00 | 19.1°C | 17.3°C | 0 | 4.3 | SSW | 71 | 1014 |
| 09:00 | 14:00 | 20.7°C | 19.1°C | 0 | 4.6 | SSW | 71 | 1015 |
| 10:00 | 15:00 | 24.6°C | 22.5°C | 0 | 5.1 | SSW | 54 | 1015 |
| 11:00 | 16:00 | 25.7°C | 23.4°C | 0 | 6 | SSW | 54 | 1014 |
| 12:00 | 17:00 | 27°C | 24.6°C | 0 | 6.2 | SSW | 51 | 1014 |
| 13:00 | 18:00 | 27.7°C | 25.5°C | 0 | 6.1 | SSW | 50 | 1013 |
| 14:00 | 19:00 | 28.2°C | 26.2°C | 0.03 | 6.1 | SSW | 49 | 1013 |
| 15:00 | 20:00 | 29.1°C | 26.9°C | 0.02 | 6.2 | SSW | 46 | 1012 |
| 16:00 | 21:00 | 30.7°C | 28.6°C | 0.02 | 6 | SSW | 42 | 1012 |
| 17:00 | 22:00 | 28.8°C | 26.6°C | 0.7 | 6.1 | SSW | 47 | 1013 |
| 18:00 | 23:00 | 25.7°C | 24.4°C | 0.87 | 4.8 | SSW | 56 | 1014 |
| 19:00 | 00:00 | 24.9°C | 24.4°C | 0.18 | 4.3 | SSW | 64 | 1014 |
| 20:00 | 01:00 | 24.9°C | 24.8°C | 0 | 3.8 | SW | 64 | 1014 |
| 21:00 | 02:00 | 23.3°C | 22.9°C | 0 | 3.8 | SSW | 66 | 1015 |
| 22:00 | 03:00 | 20.9°C | 20.6°C | 0 | 3.5 | SSW | 76 | 1016 |
| 23:00 | 04:00 | 20.4°C | 20.5°C | 0 | 3.1 | SSW | 79 | 1017 |
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
- Hereford — 34.750°, -102.500°, ERA5 grid cell center, 11.7 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 20 August 2017 specifically — not a monthly average. See the Hereford 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 Hereford, United States (34.75°N, 102.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Hereford, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Hereford, 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 Hereford, 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.