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Home / Cascade / 20 May 2018

Cascade

United States · 20 May 2018

CascadeUnited States10:56 PM localChange location

← 19 May 201821 May 2018 →

Average

15.9°C

low 11.6°C · high 18.8°C

Rainfall

9.7mm

rain recorded

Wind

4m/s

daily average

Humidity

82.9%

daily average

Cloud

92%

cover

Pressure

1019hPa

daily average

The temperature ranged from 11.6°C around 09:00 to 18.8°C around 03:00. Rain was recorded across 11 hours, from around 00:00 to 11:00 (9.8mm total).

How unusual was this day?

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

High temperature

24th percentile

Low temperature

51th percentile

Rainfall

84th percentile

Wind

56th 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 17°C, versus 15.9°C on this specific day.

Sun & daylight

Sunrise

05:38

Sunset

20:23

Day length

14h 45m

Hour by hour

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

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

Cumulative rainfall through the day.

00:0006:0012:0018:0023:00
Local timeUTCTempFeelsRain mmWind m/sDirHumidity %Pressure hPa
00:0005:0018.4°C19°C1.522.7NNE921015
01:0006:0018.1°C18.7°C1.522.5NE931015
02:0007:0018.4°C19.2°C0.682.4NE941015
03:0008:0018.8°C19.5°C0.132.9NE951015
04:0009:0017.7°C18.1°C0.083.2ENE981016
05:0010:0016.7°C16.2°C0.523.6ENE961017
06:0011:0016.3°C15.5°C0.713.9ENE971018
07:0012:0014.4°C12.1°C0.634.9ENE961019
08:0013:0012.2°C8.6°C1.075.7E941019
09:0014:0011.6°C8.2°C1.565.1E921021
10:0015:0012.4°C9.1°C1.154.9E871022
11:0016:0013.1°C9.7°C0.175.1E851022
12:0017:0013.8°C10.4°C05E791022
13:0018:0014.7°C12.1°C04.2E771021
14:0019:0015.2°C12.9°C03.8E771021
15:0020:0016°C14°C03.5E751021
16:0021:0016.5°C14.1°C03.8E681020
17:0022:0017.4°C15°C04.2ENE701020
18:0023:0017.7°C15.5°C04ENE701020
19:0000:0017.5°C15.3°C04.1E701020
20:0001:0017.1°C14.8°C03.8E681020
21:0002:0016.9°C14.6°C03.7E691020
22:0003:0015.7°C13.1°C04E721020
23:0004:0015.2°C12.6°C0.014.1E751020

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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
Cascade — 42.250°, -91.000°, ERA5 grid cell center, 5.5 km from requested point
Time zone
America/Chicago
What's shown here
The hourly and daily record for 20 May 2018 specifically — not a monthly average. See the Cascade 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 (2026-07-19). Historical climate data for Cascade, United States (42.25°N, 91.00°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 Cascade, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Cascade, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 19, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Cascade, 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/}
}

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