Home / Washington / 22 July 2018
Washington
United States · 22 July 2018
Average
21.9°C
low 17.5°C · high 27°C
Rainfall
36.4mm
rain recorded
Wind
2.1m/s
daily average
Humidity
89.5%
daily average
Cloud
96%
cover
Pressure
1009hPa
daily average
The temperature ranged from 17.5°C around 02:00 to 27°C around 15:00. Rain was recorded across 18 hours, from around 00:00 to 23:00 (36.4mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
4th percentile
Low temperature
1th percentile
Rainfall
99th 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 27.1°C, versus 21.9°C on this specific day.
Sun & daylight
Sunrise
06:00
Sunset
20:28
Day length
14h 28m
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 | 19°C | 19.2°C | 16.1 | 4.1 | NNW | 97 | 1004 |
| 01:00 | 05:00 | 18.4°C | 18.6°C | 6.95 | 3.6 | WNW | 96 | 1004 |
| 02:00 | 06:00 | 17.5°C | 17°C | 1.64 | 4.1 | WNW | 96 | 1005 |
| 03:00 | 07:00 | 17.6°C | 17.5°C | 0.11 | 3.5 | W | 96 | 1005 |
| 04:00 | 08:00 | 17.5°C | 17.3°C | 0 | 3.5 | WSW | 95 | 1006 |
| 05:00 | 09:00 | 17.5°C | 17.7°C | 0.01 | 3 | WSW | 95 | 1007 |
| 06:00 | 10:00 | 18°C | 19.7°C | 0 | 1 | W | 94 | 1007 |
| 07:00 | 11:00 | 18.2°C | 19.9°C | 0 | 0.9 | SSE | 92 | 1008 |
| 08:00 | 12:00 | 19.2°C | 20.4°C | 0 | 1.6 | SSE | 87 | 1009 |
| 09:00 | 13:00 | 20.4°C | 22.3°C | 0 | 1.4 | SSE | 88 | 1010 |
| 10:00 | 14:00 | 21.8°C | 23.9°C | 0.21 | 1.3 | ESE | 83 | 1010 |
| 11:00 | 15:00 | 22.5°C | 24.5°C | 0.84 | 1.6 | E | 79 | 1011 |
| 12:00 | 16:00 | 23.4°C | 25.9°C | 0.3 | 1.5 | E | 81 | 1011 |
| 13:00 | 17:00 | 24.4°C | 27.4°C | 0.3 | 1.6 | E | 80 | 1010 |
| 14:00 | 18:00 | 25.5°C | 29.6°C | 0.83 | 1.4 | E | 84 | 1010 |
| 15:00 | 19:00 | 27°C | 31.1°C | 0.64 | 1.7 | ENE | 79 | 1010 |
| 16:00 | 20:00 | 24.7°C | 28.4°C | 1.61 | 1.6 | ESE | 86 | 1010 |
| 17:00 | 21:00 | 25.8°C | 29.7°C | 0.59 | 2.6 | SE | 89 | 1010 |
| 18:00 | 22:00 | 26°C | 30.7°C | 0.15 | 2.1 | SE | 91 | 1009 |
| 19:00 | 23:00 | 25.6°C | 30.1°C | 0.37 | 1.6 | ESE | 89 | 1010 |
| 20:00 | 00:00 | 24.6°C | 28.8°C | 0.21 | 1.4 | ESE | 91 | 1010 |
| 21:00 | 01:00 | 23.8°C | 27.4°C | 1.86 | 1.8 | E | 92 | 1011 |
| 22:00 | 02:00 | 23.6°C | 26.5°C | 2.65 | 2.5 | ESE | 91 | 1012 |
| 23:00 | 03:00 | 23.5°C | 27°C | 1.07 | 2.2 | ESE | 96 | 1012 |
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
- Washington — 39.000°, -77.000°, ERA5 grid cell center, 12.1 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 22 July 2018 specifically — not a monthly average. See the Washington 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 Washington, United States (39.00°N, 77.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Washington, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Washington, 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 Washington, 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.