Home / Garrison / 4 August 2018
Garrison
United States · 4 August 2018
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Average
25.8°C
low 21.9° · high 30.3°
Rainfall
5.3mm
rain recorded
Wind
2.4m/s
daily average
Humidity
76.8%
daily average
Cloud
54%
cover
Pressure
1020hPa
daily average
The temperature ranged from 21.9°C around 07:00 to 30.3°C around 17:00. Rain was recorded across 6 hours, from around 00:00 to 12:00 (5.3mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
62th percentile
Low temperature
74th percentile
Rainfall
75th percentile
Wind
70th 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 25.8°C on this specific day.
Sun & daylight
Sunrise
06:09
Sunset
20:16
Day length
14h 7m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 04:00 | 23 | 25.8 | 0.46 | 2.8 | SSE | 95 | 1019 |
| 01:00 | 05:00 | 22.7 | 24.8 | 1.03 | 3.6 | S | 95 | 1019 |
| 02:00 | 06:00 | 22.5 | 24.2 | 1.78 | 4.1 | S | 95 | 1018 |
| 03:00 | 07:00 | 22.5 | 24.2 | 1.27 | 4 | S | 96 | 1017 |
| 04:00 | 08:00 | 22.5 | 25 | 0.45 | 3.2 | SW | 96 | 1018 |
| 05:00 | 09:00 | 22.3 | 25.2 | 0.05 | 2.6 | WSW | 98 | 1018 |
| 06:00 | 10:00 | 22.3 | 25.1 | 0.01 | 2 | WNW | 94 | 1019 |
| 07:00 | 11:00 | 21.9 | 24.1 | 0 | 2.5 | NW | 92 | 1020 |
| 08:00 | 12:00 | 22.4 | 24.7 | 0 | 2.5 | NW | 90 | 1020 |
| 09:00 | 13:00 | 23.7 | 26 | 0 | 2.5 | NW | 83 | 1020 |
| 10:00 | 14:00 | 24.9 | 27.4 | 0 | 2.3 | NW | 78 | 1021 |
| 11:00 | 15:00 | 27.6 | 28.9 | 0 | 2.6 | NW | 59 | 1021 |
| 12:00 | 16:00 | 28.4 | 30 | 0.1 | 2.4 | NW | 57 | 1021 |
| 13:00 | 17:00 | 28.9 | 30.9 | 0.08 | 1.8 | WNW | 55 | 1020 |
| 14:00 | 18:00 | 29.2 | 31.3 | 0.02 | 2 | WNW | 56 | 1020 |
| 15:00 | 19:00 | 29.8 | 32 | 0.04 | 2.4 | WNW | 57 | 1020 |
| 16:00 | 20:00 | 30.3 | 32.4 | 0.03 | 2.2 | W | 54 | 1020 |
| 17:00 | 21:00 | 30.3 | 32.5 | 0.01 | 1.9 | W | 53 | 1020 |
| 18:00 | 22:00 | 29.8 | 33.7 | 0 | 1.6 | WNW | 65 | 1019 |
| 19:00 | 23:00 | 29.3 | 33.4 | 0 | 1.2 | W | 67 | 1020 |
| 20:00 | 00:00 | 28.2 | 32 | 0 | 1.3 | WSW | 70 | 1020 |
| 21:00 | 01:00 | 26.4 | 29.4 | 0 | 1.6 | WSW | 72 | 1020 |
| 22:00 | 02:00 | 25.4 | 28.2 | 0 | 1.7 | WSW | 76 | 1021 |
| 23:00 | 03:00 | 24 | 27.6 | 0 | 1.8 | WSW | 90 | 1021 |
Nearby cities
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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 2018 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
PastClimate (2026-07-17). 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/
PastClimate. (2026). Historical climate data for Garrison, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Garrison, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@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 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.