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Clarksburg

United States · 12 June 2021

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Average

20.5°C

low 16.9° · high 24.7°

Rainfall

1.2mm

rain recorded

Wind

1.7m/s

daily average

Humidity

81.5%

daily average

Cloud

87%

cover

Pressure

1011hPa

daily average

The temperature ranged from 16.9°C around 06:00 to 24.7°C around 17:00. Rain was recorded across 4 hours, from around 00:00 to 04:00 (1.2mm total).

How unusual was this day?

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

High temperature

16th percentile

Low temperature

41th percentile

Rainfall

63th percentile

Wind

13th 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 22.7°C, versus 20.5°C on this specific day.

Sun & daylight

Sunrise

05:41

Sunset

20:36

Day length

14h 54m

Hour by hour

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

↓ 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
00:0004:0017.818.40.272.6NE951011
01:0005:0017.718.20.242.5NE951011
02:0006:0017.418.10.012.2NE951010
03:0007:0017.317.80.212.4NNE951010
04:0008:0017.317.40.12.8NNE941010
05:0009:0017.117.50.082.5NNE941010
06:0010:0016.9180.011.2N941010
07:0011:0016.917.50.042N931010
08:0012:0017.217.40.042.5N931011
09:0013:0017.7180.012.2NNE891011
10:0014:0018.5190.012.2NNE861011
11:0015:0020.521.70.011.5NNE781011
12:0016:0021.622.801.4NNE731012
13:0017:0023.324.90.011N681012
14:0018:0023.925.80.060.8NNE661012
15:0019:0024.226.40.010.5NE661011
16:0020:0024.6270.030.3ESE651011
17:0021:0024.726.90.020.7SE661010
18:0022:0024.326.30.031SSE681010
19:0023:0024.226.600.6SSE691011
20:0000:0023.625.601.2SE721011
21:0001:0022.623.702.7SSE771011
22:0002:0021.722.802.4SSE801012
23:0003:0020.422.101.6SSE861012

Same date, other years

202520242023202220202019201820172016

Nearby cities

Germantown

0km away, same day

Gaithersburg

0km away, same day

Montgomery Village

0km away, same day

Redland

0km away, same day

Damascus

0km away, same day

Green Valley

0km away, same day

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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
Clarksburg — 39.250°, -77.250°, ERA5 grid cell center, 2.8 km from requested point
Time zone
America/New_York
What's shown here
The hourly and daily record for 12 June 2021 specifically — not a monthly average. See the Clarksburg 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 (2026-07-16). Historical climate data for Clarksburg, United States (39.25°N, 77.25°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 Clarksburg, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Clarksburg, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 16, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Clarksburg, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-16},
  url = {https://www.pastclimate.com/}
}

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