Home / Walla Walla / 22 May 2017
Walla Walla
United States · 22 May 2017
Average
19.1°C
low 10.1°C · high 27.3°C
Rainfall
0mm
dry day
Wind
1.6m/s
daily average
Humidity
54.6%
daily average
Cloud
11%
cover
Pressure
1019hPa
daily average
The temperature ranged from 10.1°C around 03:00 to 27.3°C around 16:00. No measurable rain was recorded during the day.
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
94th percentile
Low temperature
73th percentile
Rainfall
31th percentile
Wind
11th 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 14.2°C, versus 19.1°C on this specific day.
Sun & daylight
Sunrise
05:13
Sunset
20:26
Day length
15h 14m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Los_Angeles.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 07:00 | 14.3°C | 13.4°C | 0 | 1.7 | ESE | 79 | 1020 |
| 01:00 | 08:00 | 13.9°C | 12.9°C | 0 | 1.8 | ESE | 81 | 1020 |
| 02:00 | 09:00 | 11.8°C | 10.5°C | 0 | 1.8 | ESE | 87 | 1020 |
| 03:00 | 10:00 | 10.1°C | 8.4°C | 0 | 1.9 | ESE | 88 | 1021 |
| 04:00 | 11:00 | 10.1°C | 8.4°C | 0 | 1.8 | ESE | 87 | 1021 |
| 05:00 | 12:00 | 10.3°C | 8.8°C | 0 | 1.7 | ESE | 87 | 1021 |
| 06:00 | 13:00 | 10.2°C | 8.5°C | 0 | 1.6 | ESE | 84 | 1021 |
| 07:00 | 14:00 | 12.6°C | 11.1°C | 0 | 1.7 | ESE | 77 | 1021 |
| 08:00 | 15:00 | 18.9°C | 17.8°C | 0 | 1.2 | ESE | 52 | 1021 |
| 09:00 | 16:00 | 20.4°C | 19.2°C | 0 | 0.4 | E | 39 | 1021 |
| 10:00 | 17:00 | 21.8°C | 20.5°C | 0 | 0.4 | N | 34 | 1021 |
| 11:00 | 18:00 | 22.9°C | 21.5°C | 0 | 0.9 | NW | 35 | 1020 |
| 12:00 | 19:00 | 24°C | 22.5°C | 0 | 1.5 | NW | 36 | 1020 |
| 13:00 | 20:00 | 24.9°C | 23.4°C | 0 | 1.6 | NNW | 34 | 1020 |
| 14:00 | 21:00 | 26.9°C | 24.8°C | 0 | 1.5 | NNW | 25 | 1019 |
| 15:00 | 22:00 | 27°C | 24.3°C | 0 | 2.2 | NNW | 24 | 1018 |
| 16:00 | 23:00 | 27.3°C | 24.7°C | 0 | 2.2 | N | 25 | 1018 |
| 17:00 | 00:00 | 27.2°C | 24.6°C | 0 | 2.3 | N | 25 | 1017 |
| 18:00 | 01:00 | 26.9°C | 24.4°C | 0 | 2.2 | N | 26 | 1017 |
| 19:00 | 02:00 | 26.1°C | 24.7°C | 0 | 1.3 | N | 32 | 1017 |
| 20:00 | 03:00 | 20.6°C | 19.5°C | 0 | 1.8 | NE | 52 | 1017 |
| 21:00 | 04:00 | 18.4°C | 17.3°C | 0 | 1.8 | E | 59 | 1017 |
| 22:00 | 05:00 | 17.6°C | 17.1°C | 0 | 1.3 | ESE | 66 | 1017 |
| 23:00 | 06:00 | 14.5°C | 13.5°C | 0 | 1.4 | ESE | 74 | 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
- Walla Walla — 46.000°, -118.250°, ERA5 grid cell center, 10.2 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- The hourly and daily record for 22 May 2017 specifically — not a monthly average. See the Walla Walla 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 (2026-07-19). Historical climate data for Walla Walla, United States (46.00°N, 118.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Walla Walla, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Walla Walla, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 19, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Walla Walla, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-19},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.