Home / Willmar / 11 September 2018

Willmar

United States · 11 September 2018

WillmarUnited States6:58 PM localChange location

← 10 September 201812 September 2018 →

Average

22.2°C

low 16.2° · high 28.2°

Rainfall

0mm

dry day

Wind

6.5m/s

daily average

Humidity

70.5%

daily average

Cloud

35%

cover

Pressure

1011hPa

daily average

The temperature ranged from 16.2°C around 07:00 to 28.2°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

82th percentile

Low temperature

73th percentile

Rainfall

50th percentile

Wind

98th 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 18.2°C, versus 22.2°C on this specific day.

Sun & daylight

Sunrise

06:53

Sunset

19:38

Day length

12h 44m

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 timeUTCTemp °CFeels °CRain mmWind m/sDirHumidity %Pressure hPa
00:0005:0018.61804.2SSW901013
01:0006:0018.417.704.1SSW891013
02:0007:0018.317.603.9S871013
03:0008:001817.203.9S871013
04:0009:0017.816.704.1S871013
05:0010:0016.314.704.5S901013
06:0011:0016.314.804.1S891013
07:0012:0016.214.604.4S901013
08:0013:00171505.2S881013
09:0014:0019.11705.8SSE831013
10:0015:0022.719.606.8SSE631012
11:0016:0023.520.207.4SSE621012
12:0017:0025.321.707.9SSE561011
13:0018:0026.122.408.5S561011
14:0019:0026.722.709S551010
15:0020:0027.423.309.4S531009
16:0021:0028.224.109.5S531008
17:0022:002723.408.5SSE551008
18:0023:0026.422.908.2S551008
19:0000:0026.323.107.7S541008
20:0001:0025.922.707.3S531009
21:0002:0024.621.607.1S581009
22:0003:0023.120.606.9S691010
23:0004:002320.706.7SSW691011

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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
Willmar — 45.000°, -95.000°, ERA5 grid cell center, 14.0 km from requested point
Time zone
America/Chicago
What's shown here
The hourly and daily record for 11 September 2018 specifically — not a monthly average. See the Willmar 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 Willmar, United States (45.00°N, 95.00°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 Willmar, 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 Willmar, 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 Willmar, 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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