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Asotin

United States · 20 May 2018

AsotinUnited States3:46 AM localChange location

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Average

16.3°C

low 11.8° · high 20.5°

Rainfall

3.6mm

rain recorded

Wind

1.2m/s

daily average

Humidity

73.8%

daily average

Cloud

86%

cover

Pressure

1011hPa

daily average

The temperature ranged from 11.8°C around 06:00 to 20.5°C around 15:00. Rain was recorded across 4 hours, from around 11:00 to 18:00 (3.6mm total).

How unusual was this day?

Compared against the same 135 calendar days (±7 days) across the other 9 years on file.

High temperature

67th percentile

Low temperature

93th percentile

Rainfall

82th percentile

Wind

2th 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 13.6°C, versus 16.3°C on this specific day.

Sun & daylight

Sunrise

05:09

Sunset

20:20

Day length

15h 11m

Hour by hour

Temperature (line) and hourly rainfall (bars), local time — America/Los_Angeles.

↓ Download CSV
00:0006:0012:0018:0023:00

Cumulative rainfall through the day.

00:0006:0012:0018:0023:00
Local timeUTCTemp °CFeels °CRain mmWind m/sDirHumidity %Pressure hPa
00:0007:0016.51600.9SW681012
01:0008:0015.415.100.8SSW731011
02:0009:001413.700.5S761011
03:0010:0013.612.801S751012
04:0011:0014.113.201.3S761011
05:0012:0013.412.401.3S791011
06:0013:0011.811.201S891012
07:0014:0012.711.701.2S791012
08:0015:0015.414.60.050.7S651012
09:0016:0015.9150.050.9S631012
10:0017:0017.216.50.060.7SSW591013
11:0018:0017.316.90.120.6WSW611012
12:0019:0018.618.50.320.2ENE591012
13:0020:0018.818.30.061ENE591011
14:0021:0020.219.30.081.4E531011
15:0022:0020.520.10.011.6NE601010
16:0023:0020190.012.5N621010
17:0000:0018.717.92.182.7NNW721011
18:0001:0017.918.60.621.1NW811011
19:0002:0017.718.50.040.9WNW801011
20:0003:0015.916.501.4W951010
21:0004:0015.816.301.4WSW931011
22:0005:0014.71501.5SW971011
23:0006:0014.414.801.2SW971011

Same date, other years

202520242023202220212020201920172016

Nearby cities

Lewiston

27.8km away, same day

Lewiston Orchards

27.8km away, same day

Clarkston

27.8km away, same day

Clarkston Heights-Vineland

27.8km away, same day

West Clarkston-Highland

27.8km away, same day

Pomeroy

47.4km away, same day

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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
Asotin — 46.250°, -117.000°, ERA5 grid cell center, 10.6 km from requested point
Time zone
America/Los_Angeles
What's shown here
The hourly and daily record for 20 May 2018 specifically — not a monthly average. See the Asotin 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

Plain text
PastClimate (2026-07-17). Historical climate data for Asotin, United States (46.25°N, 117.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
APA
PastClimate. (2026). Historical climate data for Asotin, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Asotin, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Asotin, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-17},
  url = {https://www.pastclimate.com/}
}

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