Home / Yaphank / 30 September 2023
Yaphank
United States · 30 September 2023
← 29 September 20231 October 2023 →
Average
16.6°C
low 15.2° · high 17.8°
Rainfall
18.6mm
rain recorded
Wind
6.1m/s
daily average
Humidity
87.6%
daily average
Cloud
87%
cover
Pressure
1021hPa
daily average
The temperature ranged from 15.2°C around 06:00 to 17.8°C around 17:00. Rain was recorded across 13 hours, from around 00:00 to 18:00 (18.6mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
14th percentile
Low temperature
25th percentile
Rainfall
98th percentile
Wind
80th 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 18.6°C, versus 16.6°C on this specific day.
Sun & daylight
Sunrise
06:47
Sunset
18:36
Day length
11h 49m
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 | 16.4 | 13.1 | 0.78 | 7 | NE | 92 | 1020 |
| 01:00 | 05:00 | 16 | 12.8 | 0.26 | 6.7 | NE | 92 | 1020 |
| 02:00 | 06:00 | 15.9 | 12.5 | 0.07 | 6.8 | NNE | 91 | 1019 |
| 03:00 | 07:00 | 15.8 | 12.2 | 0.06 | 7.1 | NNE | 91 | 1019 |
| 04:00 | 08:00 | 15.7 | 12.1 | 0.03 | 7.2 | NNE | 91 | 1019 |
| 05:00 | 09:00 | 15.7 | 12.1 | 0.36 | 7.2 | NNE | 91 | 1019 |
| 06:00 | 10:00 | 15.2 | 12.5 | 2.46 | 5.7 | NNE | 93 | 1020 |
| 07:00 | 11:00 | 15.3 | 11.9 | 3.97 | 6.6 | NNE | 92 | 1021 |
| 08:00 | 12:00 | 15.5 | 12 | 2.64 | 7 | NNE | 93 | 1021 |
| 09:00 | 13:00 | 15.7 | 11.9 | 2.25 | 7.3 | NNE | 92 | 1021 |
| 10:00 | 14:00 | 15.6 | 12 | 2.11 | 7.2 | NNE | 92 | 1022 |
| 11:00 | 15:00 | 15.8 | 12.8 | 1.5 | 6.3 | NNE | 91 | 1021 |
| 12:00 | 16:00 | 16 | 13.3 | 1.04 | 5.9 | N | 90 | 1021 |
| 13:00 | 17:00 | 16.7 | 13.6 | 0.63 | 6.5 | N | 87 | 1021 |
| 14:00 | 18:00 | 17.3 | 14.1 | 0.13 | 6.6 | N | 83 | 1021 |
| 15:00 | 19:00 | 17.5 | 14.5 | 0.08 | 6.4 | N | 82 | 1021 |
| 16:00 | 20:00 | 17.8 | 15 | 0.01 | 6 | NNE | 81 | 1021 |
| 17:00 | 21:00 | 17.8 | 15.6 | 0.05 | 5.2 | NNE | 80 | 1021 |
| 18:00 | 22:00 | 17.6 | 16.1 | 0.12 | 4.4 | N | 83 | 1021 |
| 19:00 | 23:00 | 17.7 | 15.9 | 0.02 | 4.7 | NNW | 84 | 1021 |
| 20:00 | 00:00 | 17.6 | 15.9 | 0 | 4.7 | NNW | 84 | 1021 |
| 21:00 | 01:00 | 17.6 | 15.6 | 0 | 5 | N | 83 | 1021 |
| 22:00 | 02:00 | 17.6 | 15.7 | 0 | 4.7 | N | 82 | 1021 |
| 23:00 | 03:00 | 17.3 | 15.4 | 0 | 4.8 | N | 83 | 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
- Yaphank — 40.750°, -73.000°, ERA5 grid cell center, 11.9 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 30 September 2023 specifically — not a monthly average. See the Yaphank 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 (2026-07-16). Historical climate data for Yaphank, United States (40.75°N, 73.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Yaphank, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Yaphank, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 16, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Yaphank, 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/}
}Notice something wrong with this data? Report a data issue.