McLean
United States · 8 July 2021
Average
26°C
low 21.6°C · high 31.3°C
Rainfall
5.8mm
rain recorded
Wind
2.3m/s
daily average
Humidity
72.8%
daily average
Cloud
84%
cover
Pressure
1014hPa
daily average
The temperature ranged from 21.6°C around 23:00 to 31.3°C around 14:00. Rain was recorded across 8 hours, from around 16:00 to 23:00 (5.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
36th percentile
Low temperature
38th percentile
Rainfall
82th percentile
Wind
67th 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 26.6°C, versus 26°C on this specific day.
Sun & daylight
Sunrise
05:51
Sunset
20:36
Day length
14h 46m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 04:00 | 27°C | 29.5°C | 0 | 2.3 | SSW | 70 | 1014 |
| 01:00 | 05:00 | 26.1°C | 28.3°C | 0 | 2 | SSW | 68 | 1014 |
| 02:00 | 06:00 | 25.5°C | 27.3°C | 0 | 2 | SSW | 68 | 1014 |
| 03:00 | 07:00 | 25.2°C | 27°C | 0 | 1.9 | SSW | 68 | 1014 |
| 04:00 | 08:00 | 25.1°C | 26.8°C | 0 | 2.1 | SSW | 69 | 1014 |
| 05:00 | 09:00 | 24.6°C | 26.3°C | 0 | 2.2 | SSW | 71 | 1014 |
| 06:00 | 10:00 | 24.3°C | 27.8°C | 0 | 0.5 | SSW | 78 | 1014 |
| 07:00 | 11:00 | 24.6°C | 27.9°C | 0 | 1 | WSW | 78 | 1014 |
| 08:00 | 12:00 | 25.6°C | 29°C | 0 | 0.8 | WSW | 74 | 1014 |
| 09:00 | 13:00 | 26.7°C | 30.2°C | 0 | 0.8 | W | 70 | 1015 |
| 10:00 | 14:00 | 27.2°C | 31.2°C | 0 | 0.2 | S | 69 | 1015 |
| 11:00 | 15:00 | 29°C | 32.3°C | 0 | 1.2 | SE | 62 | 1015 |
| 12:00 | 16:00 | 30.1°C | 32.3°C | 0.02 | 3 | S | 59 | 1015 |
| 13:00 | 17:00 | 30.9°C | 32.5°C | 0.02 | 3.7 | S | 56 | 1015 |
| 14:00 | 18:00 | 31.3°C | 32.9°C | 0.02 | 3.4 | S | 53 | 1015 |
| 15:00 | 19:00 | 27.8°C | 28.8°C | 0.01 | 4.5 | S | 67 | 1014 |
| 16:00 | 20:00 | 26.6°C | 27.4°C | 1.68 | 4.8 | S | 70 | 1014 |
| 17:00 | 21:00 | 26.7°C | 28.1°C | 1.82 | 3.7 | S | 69 | 1014 |
| 18:00 | 22:00 | 24.5°C | 27.6°C | 0.73 | 2 | S | 85 | 1014 |
| 19:00 | 23:00 | 24°C | 27.4°C | 0.39 | 1.5 | SSE | 86 | 1014 |
| 20:00 | 00:00 | 23.6°C | 26.9°C | 0.33 | 1.6 | ENE | 87 | 1014 |
| 21:00 | 01:00 | 22.8°C | 24.8°C | 0.15 | 3 | NE | 89 | 1013 |
| 22:00 | 02:00 | 22.2°C | 23.5°C | 0.17 | 3.8 | NE | 89 | 1012 |
| 23:00 | 03:00 | 21.6°C | 22.7°C | 0.48 | 3.8 | NNE | 92 | 1011 |
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
- McLean — 39.000°, -77.250°, ERA5 grid cell center, 9.6 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 8 July 2021 specifically — not a monthly average. See the McLean 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 McLean, United States (39.00°N, 77.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for McLean, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for McLean, 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 McLean, 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.