Fairfax
United States · 9 July 2022
Average
22.2°C
low 20.4° · high 25.8°
Rainfall
130.1mm
rain recorded
Wind
2.6m/s
daily average
Humidity
93.9%
daily average
Cloud
100%
cover
Pressure
1016hPa
daily average
The temperature ranged from 20.4°C around 14:00 to 25.8°C around 00:00. Rain was recorded across 19 hours, from around 00:00 to 18:00 (130.1mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
2th percentile
Low temperature
13th percentile
Rainfall
100th percentile
Wind
81th 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 27.1°C, versus 22.2°C on this specific day.
Sun & daylight
Sunrise
05:52
Sunset
20:35
Day length
14h 44m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 04:00 | 25.8 | 29.6 | 0.34 | 1.8 | S | 83 | 1015 |
| 01:00 | 05:00 | 24.9 | 29.2 | 0.62 | 0.9 | SSW | 86 | 1015 |
| 02:00 | 06:00 | 24.1 | 28.7 | 1.12 | 0.5 | SSE | 91 | 1015 |
| 03:00 | 07:00 | 23.7 | 28.1 | 2.41 | 0.9 | ESE | 93 | 1014 |
| 04:00 | 08:00 | 23.4 | 27.1 | 5.19 | 1.5 | ENE | 93 | 1014 |
| 05:00 | 09:00 | 23 | 26.1 | 4.52 | 2.2 | ENE | 94 | 1014 |
| 06:00 | 10:00 | 23.1 | 25.4 | 7.06 | 3.5 | NE | 95 | 1014 |
| 07:00 | 11:00 | 23.1 | 25.8 | 11.23 | 3.2 | NE | 96 | 1015 |
| 08:00 | 12:00 | 23.1 | 25.7 | 18.09 | 2.9 | ENE | 93 | 1015 |
| 09:00 | 13:00 | 22.6 | 25.4 | 21.04 | 2.5 | ENE | 95 | 1016 |
| 10:00 | 14:00 | 21.9 | 24.4 | 19.1 | 2.7 | NE | 96 | 1016 |
| 11:00 | 15:00 | 21.3 | 22.9 | 13.37 | 3.5 | NE | 96 | 1016 |
| 12:00 | 16:00 | 21.1 | 22.4 | 10.58 | 3.8 | NE | 97 | 1016 |
| 13:00 | 17:00 | 20.9 | 22.1 | 6.84 | 4 | NE | 98 | 1016 |
| 14:00 | 18:00 | 20.4 | 21.3 | 3.98 | 4.2 | NE | 100 | 1016 |
| 15:00 | 19:00 | 20.4 | 21.3 | 1.72 | 4.3 | NE | 100 | 1016 |
| 16:00 | 20:00 | 20.7 | 21.9 | 1.26 | 4.1 | NE | 100 | 1017 |
| 17:00 | 21:00 | 20.8 | 22.3 | 0.99 | 3.7 | NE | 100 | 1016 |
| 18:00 | 22:00 | 21.4 | 23.8 | 0.51 | 2 | ENE | 93 | 1017 |
| 19:00 | 23:00 | 21.4 | 23.9 | 0.07 | 1.8 | NNE | 92 | 1017 |
| 20:00 | 00:00 | 21.5 | 23.8 | 0.05 | 2 | NNE | 92 | 1017 |
| 21:00 | 01:00 | 21.5 | 23.8 | 0 | 2.1 | ENE | 92 | 1016 |
| 22:00 | 02:00 | 21.7 | 24.1 | 0 | 1.8 | NE | 90 | 1018 |
| 23:00 | 03:00 | 21.4 | 23.7 | 0 | 1.9 | NE | 91 | 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
- Fairfax — 38.750°, -77.250°, ERA5 grid cell center, 11.8 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 9 July 2022 specifically — not a monthly average. See the Fairfax 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 (2026-07-16). Historical climate data for Fairfax, United States (38.75°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 Fairfax, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Fairfax, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 16, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Fairfax, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-16},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.