Home / Brookhaven / 16 September 2018
Brookhaven
United States · 16 September 2018
← 15 September 201817 September 2018 →
Average
24.5°C
low 22.3°C · high 26.3°C
Rainfall
0.7mm
dry day
Wind
3.7m/s
daily average
Humidity
80.5%
daily average
Cloud
70%
cover
Pressure
1010hPa
daily average
The temperature ranged from 22.3°C around 05:00 to 26.3°C around 16:00. Rain was recorded across 3 hours, from around 02:00 to 16:00 (0.7mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
27th percentile
Low temperature
95th percentile
Rainfall
71th percentile
Wind
81th 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 23.1°C, versus 24.5°C on this specific day.
Sun & daylight
Sunrise
07:20
Sunset
19:42
Day length
12h 21m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 04:00 | 24.5°C | 26.7°C | 0 | 2.8 | N | 81 | 1012 |
| 01:00 | 05:00 | 24.4°C | 26.5°C | 0 | 3.2 | N | 83 | 1011 |
| 02:00 | 06:00 | 24.3°C | 26.1°C | 0.1 | 3.4 | N | 82 | 1011 |
| 03:00 | 07:00 | 24°C | 25.8°C | 0 | 3.6 | NNW | 85 | 1010 |
| 04:00 | 08:00 | 23.2°C | 24.7°C | 0 | 3.9 | NNW | 87 | 1010 |
| 05:00 | 09:00 | 22.3°C | 23.5°C | 0 | 4 | NNW | 90 | 1010 |
| 06:00 | 10:00 | 23.5°C | 25°C | 0 | 3.8 | N | 85 | 1009 |
| 07:00 | 11:00 | 23.6°C | 24.9°C | 0 | 3.7 | NNW | 83 | 1010 |
| 08:00 | 12:00 | 23.4°C | 24.3°C | 0 | 4.2 | NW | 82 | 1010 |
| 09:00 | 13:00 | 23.6°C | 24.3°C | 0 | 4.7 | NW | 83 | 1010 |
| 10:00 | 14:00 | 24.1°C | 24.9°C | 0 | 4.6 | NW | 82 | 1010 |
| 11:00 | 15:00 | 25.2°C | 25.7°C | 0.01 | 4.7 | NW | 73 | 1010 |
| 12:00 | 16:00 | 25.6°C | 25.9°C | 0.01 | 5.1 | NW | 73 | 1010 |
| 13:00 | 17:00 | 26.1°C | 26.4°C | 0 | 5.1 | NW | 71 | 1010 |
| 14:00 | 18:00 | 26.1°C | 26.5°C | 0.01 | 4.9 | NW | 70 | 1009 |
| 15:00 | 19:00 | 26.3°C | 27.1°C | 0.37 | 4.4 | NW | 70 | 1009 |
| 16:00 | 20:00 | 26.3°C | 27.6°C | 0.15 | 3.8 | NW | 71 | 1009 |
| 17:00 | 21:00 | 26.3°C | 27.4°C | 0.02 | 3.7 | NW | 68 | 1009 |
| 18:00 | 22:00 | 25.3°C | 28.8°C | 0 | 2.2 | WNW | 85 | 1009 |
| 19:00 | 23:00 | 25.3°C | 28.9°C | 0 | 1.7 | WNW | 83 | 1009 |
| 20:00 | 00:00 | 24.8°C | 27.9°C | 0 | 2.1 | WNW | 83 | 1009 |
| 21:00 | 01:00 | 24.3°C | 26.9°C | 0 | 2.6 | W | 85 | 1010 |
| 22:00 | 02:00 | 23.9°C | 26.2°C | 0 | 2.9 | W | 86 | 1011 |
| 23:00 | 03:00 | 22.5°C | 24.8°C | 0 | 2.8 | W | 93 | 1011 |
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
- Brookhaven — 33.750°, -84.250°, ERA5 grid cell center, 14.7 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 16 September 2018 specifically — not a monthly average. See the Brookhaven 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 (2026-07-21). Historical climate data for Brookhaven, United States (33.75°N, 84.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Brookhaven, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Brookhaven, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 21, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Brookhaven, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-21},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.