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Garrison

United States · 4 August 2020

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Average

23.7°C

low 21.3° · high 29.6°

Rainfall

87.3mm

rain recorded

Wind

3.5m/s

daily average

Humidity

81.9%

daily average

Cloud

74%

cover

Pressure

1011hPa

daily average

The temperature ranged from 21.3°C around 06:00 to 29.6°C around 17:00. Rain was recorded across 17 hours, from around 00:00 to 19:00 (87.4mm total).

How unusual was this day?

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

High temperature

52th percentile

Low temperature

59th percentile

Rainfall

100th percentile

Wind

96th 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 24.5°C, versus 23.7°C on this specific day.

Sun & daylight

Sunrise

06:09

Sunset

20:15

Day length

14h 6m

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
00:0004:0021.823.60.652.9S901017
01:0005:0021.723.61.072.7S911016
02:0006:0021.6241.662SSE921016
03:0007:0022.1251.051.6SE911015
04:0008:002224.91.351.7E931014
05:0009:0022.224.72.372.8E961013
06:0010:0021.323.85.051.9NE941012
07:0011:0021.723.96.452.6NNE941012
08:0012:0021.622.48.514.5N941009
09:0013:0021.821.511.216.3N941007
10:0014:0022.221.6127.2N951005
11:0015:0022.621.413.517.1NNW871005
12:0016:0021.820.814.76NW831006
13:0017:0021.821.56.494.6WNW811007
14:0018:0023.223.80.654.5W831008
15:0019:002627.20.023.9W721009
16:0020:0028.429.70.263.3WSW601010
17:0021:0029.630.10.043.7WSW531010
18:0022:0028.331.60.042.1SW691011
19:0023:0027.429.60.272.8SSW671011
20:0000:0026.728.902.4S671012
21:0001:0025.226.502.8SSW691013
22:0002:0024.525.602.8SW711014
23:0003:0023.425.102.5WSW781014

Same date, other years

202520242023202220212019201820172016

Nearby cities

Owings Mills

0km away, same day

Reisterstown

0km away, same day

Hunt Valley

0km away, same day

Cockeysville

0km away, same day

Mays Chapel

0km away, same day

Lutherville

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
Garrison — 39.500°, -76.750°, ERA5 grid cell center, 10.5 km from requested point
Time zone
America/New_York
What's shown here
The hourly and daily record for 4 August 2020 specifically — not a monthly average. See the Garrison 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 Garrison, United States (39.50°N, 76.75°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 Garrison, 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 Garrison, 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 Garrison, 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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