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Circle

United States · 12 May 2021

CircleUnited States1:22 PM localChange location
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← 11 May 202113 May 2021 →

Average

11°C

low 5.9°C · high 16.3°C

Rainfall

0.8mm

dry day

Wind

2.2m/s

daily average

Humidity

63.6%

daily average

Cloud

57%

cover

Pressure

1021hPa

daily average

The temperature ranged from 5.9°C around 06:00 to 16.3°C around 18:00. Rain was recorded for one hour, around 14:00 (0.8mm total).

How unusual was this day?

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

High temperature

39th percentile

Low temperature

39th percentile

Rainfall

63th 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°C, versus 11°C on this specific day.

Sun & daylight

Sunrise

05:28

Sunset

20:29

Day length

15h 1m

Hour by hour

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

↓ 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
00:0006:007.4°C3.6°C0.063.4SSE771021
01:0007:007.1°C3.3°C03.6SSE811021
02:0008:006.4°C2.5°C03.8S881021
03:0009:006.1°C2.4°C03.6S891021
04:0010:006.1°C2.5°C03S801021
05:0011:006°C2.8°C02.4S811022
06:0012:005.9°C3°C02S811022
07:0013:005.9°C2.7°C02.2S791023
08:0014:0010.2°C7.5°C0.042.1SSW671023
09:0015:0012.7°C10.2°C0.091.9SSW591022
10:0016:0012.8°C10.8°C0.051.3SSW591022
11:0017:0015.3°C13.1°C0.071.4SSW501021
12:0018:0015.2°C12.9°C0.091.7SSW501021
13:0019:0015.6°C13°C0.091.9SW471020
14:0020:0014.6°C12°C0.11.7WSW481020
15:0021:0013.6°C10.7°C0.092.1W521020
16:0022:0014.6°C12.6°C0.061.1E511020
17:0023:0015.3°C13.1°C0.031.4SE471020
18:0000:0016.3°C13.1°C0.012.4SSE421019
19:0001:0015.9°C12.8°C0.022.5S431020
20:0002:0013°C10.3°C02SSW551019
21:0003:0011.2°C8.1°C02.1SW551020
22:0004:009.3°C6.9°C01.4S671020
23:0005:007.7°C5°C01.8SSE771020

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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
Circle — 47.500°, -105.500°, ERA5 grid cell center, 11.6 km from requested point
Time zone
America/Denver
What's shown here
The hourly and daily record for 12 May 2021 specifically — not a monthly average. See the Circle 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 (2026-07-20). Historical climate data for Circle, United States (47.50°N, 105.50°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 Circle, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Circle, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Circle, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-20},
  url = {https://www.pastclimate.com/}
}

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