Home / Pendleton / 21 May 2018

Pendleton

United States · 21 May 2018

PendletonUnited States6:01 PM localChange location

← 20 May 201822 May 2018 →

Average

19.3°C

low 13.4° · high 26.1°

Rainfall

0.4mm

dry day

Wind

2.2m/s

daily average

Humidity

51.1%

daily average

Cloud

37%

cover

Pressure

1012hPa

daily average

The temperature ranged from 13.4°C around 04:00 to 26.1°C around 17:00. Rain was recorded for one hour, around 12:00 (0.4mm total).

How unusual was this day?

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

High temperature

83th percentile

Low temperature

93th percentile

Rainfall

67th percentile

Wind

33th 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 15.5°C, versus 19.3°C on this specific day.

Sun & daylight

Sunrise

05:17

Sunset

20:26

Day length

15h 10m

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
00:0007:0016.614.50.023.2SW651012
01:0008:0016.313.90.033.1SW621012
02:0009:0016.514.20.032.8SW591012
03:0010:0013.711.202.3SSW621013
04:0011:0013.41102.3SSW631013
05:0012:0013.611.40.022SSW631013
06:0013:0013.611.50.071.8SSW631013
07:0014:0013.911.802.1SSW641014
08:0015:0016.513.902.4SW501014
09:0016:0017.615.302.2SW481014
10:0017:0018.916.901.7WSW451014
11:0018:002018.201.8W451014
12:0019:0020.818.90.222.1WNW451014
13:0020:0021.519.702.1NW431013
14:0021:0024.122.202.1NW371012
15:0022:0025.723.802.3N351012
16:0023:0026.12402.7NNE351011
17:0000:0026.12402.9NNE341011
18:0001:0026.123.902.9NE341010
19:0002:0025.823.702.3NE321010
20:0003:002120.501.5E561010
21:0004:0019.318.801.3SE591011
22:0005:0018.317.701.5SSE641011
23:0006:0016.915.901.8SSE671011

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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
Pendleton — 45.750°, -118.750°, ERA5 grid cell center, 9.2 km from requested point
Time zone
America/Los_Angeles
What's shown here
The hourly and daily record for 21 May 2018 specifically — not a monthly average. See the Pendleton 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 (2026-07-18). Historical climate data for Pendleton, United States (45.75°N, 118.75°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 Pendleton, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Pendleton, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Pendleton, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-18},
  url = {https://www.pastclimate.com/}
}

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