Home / Willmar / 12 September 2023

Willmar

United States · 12 September 2023

← 11 September 202313 September 2023 →

Average

14.5°C

low 10.7° · high 19.8°

Rainfall

0mm

dry day

Wind

3.2m/s

daily average

Humidity

71.4%

daily average

Cloud

21%

cover

Pressure

1021hPa

daily average

The temperature ranged from 10.7°C around 23:00 to 19.8°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

19th percentile

Low temperature

27th percentile

Rainfall

49th percentile

Wind

30th 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 18.6°C, versus 14.5°C on this specific day.

Sun & daylight

Sunrise

06:54

Sunset

19:36

Day length

12h 42m

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
00:0005:0012.611.402NW881022
01:0006:0012.711.602NW881021
02:0007:0013.21202.2NW881021
03:0008:001210.402.5NW921021
04:0009:0011.19.302.7NW941021
05:0010:0011.39.502.8NNW951021
06:0011:0011.19.502.6N961022
07:0012:0010.99.102.8N971022
08:0013:0010.88.603.3NNE961022
09:0014:00129.903.3NNE901023
10:0015:0014.41203.6NNE771023
11:0016:0015.513.103.2N661022
12:0017:001714.403.1NNW561022
13:0018:0018.114.903.6NNW491022
14:0019:0018.414.903.8NNW461021
15:0020:0019.215.503.9NNW411021
16:0021:0019.81603.7NNW371020
17:0022:0019.115.703.2N381020
18:0023:0019.415.803.4N381020
19:0000:0018.314.903.2NNE421020
20:0001:0015.612.303.8NE581020
21:0002:0014.110.904.2ENE711021
22:0003:0011.3804.1ENE821022
23:0004:0010.77.603.8ENE861022

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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 12 September 2023 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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