Home / Commack / 29 September 2023
Commack
United States · 29 September 2023
← 28 September 202330 September 2023 →
Average
16.9°C
low 16.4° · high 18.1°
Rainfall
118.3mm
rain recorded
Wind
7.8m/s
daily average
Humidity
92.3%
daily average
Cloud
100%
cover
Pressure
1021hPa
daily average
The temperature ranged from 16.4°C around 23:00 to 18.1°C around 17:00. Rain was recorded across 24 hours, from around 00:00 to 23:00 (118.3mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
15th percentile
Low temperature
42th percentile
Rainfall
100th percentile
Wind
93th 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 18.7°C, versus 16.9°C on this specific day.
Sun & daylight
Sunrise
06:47
Sunset
18:38
Day length
11h 51m
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 | 12.7 | 3.45 | 7.4 | ENE | 89 | 1023 |
| 01:00 | 05:00 | 16.5 | 12.8 | 3.36 | 7.5 | ENE | 90 | 1023 |
| 02:00 | 06:00 | 16.7 | 13.2 | 3.3 | 7.5 | ENE | 90 | 1023 |
| 03:00 | 07:00 | 16.9 | 13.4 | 2.28 | 7.5 | ENE | 90 | 1022 |
| 04:00 | 08:00 | 16.9 | 13.2 | 1.77 | 7.9 | ENE | 91 | 1021 |
| 05:00 | 09:00 | 16.9 | 12.7 | 4.28 | 8.6 | ENE | 92 | 1021 |
| 06:00 | 10:00 | 16.6 | 13.7 | 9.45 | 6.5 | NE | 92 | 1021 |
| 07:00 | 11:00 | 16.7 | 12.9 | 10.45 | 7.8 | NNE | 91 | 1021 |
| 08:00 | 12:00 | 16.7 | 12.3 | 10.38 | 8.8 | NE | 92 | 1022 |
| 09:00 | 13:00 | 16.6 | 12.2 | 10.7 | 8.8 | NE | 92 | 1022 |
| 10:00 | 14:00 | 16.6 | 12.2 | 11.11 | 8.8 | NE | 92 | 1022 |
| 11:00 | 15:00 | 16.7 | 12.4 | 9.29 | 8.7 | NE | 92 | 1022 |
| 12:00 | 16:00 | 16.7 | 12.7 | 8.5 | 8.3 | NE | 93 | 1022 |
| 13:00 | 17:00 | 16.8 | 13 | 8.08 | 8.2 | NE | 93 | 1021 |
| 14:00 | 18:00 | 17 | 13.3 | 6.78 | 8 | NE | 94 | 1020 |
| 15:00 | 19:00 | 17.4 | 14.2 | 0.98 | 7.6 | ENE | 94 | 1020 |
| 16:00 | 20:00 | 17.9 | 14.8 | 1.22 | 7.8 | ENE | 95 | 1020 |
| 17:00 | 21:00 | 18.1 | 15.1 | 1.12 | 7.7 | ENE | 94 | 1020 |
| 18:00 | 22:00 | 16.9 | 13.8 | 1.94 | 7.3 | NE | 94 | 1019 |
| 19:00 | 23:00 | 17.1 | 13.7 | 3.33 | 7.7 | NE | 93 | 1020 |
| 20:00 | 00:00 | 17.1 | 13.5 | 3 | 7.9 | NE | 93 | 1020 |
| 21:00 | 01:00 | 16.9 | 13.7 | 2.01 | 7.3 | NE | 93 | 1020 |
| 22:00 | 02:00 | 16.6 | 13.7 | 0.69 | 6.8 | NE | 94 | 1020 |
| 23:00 | 03:00 | 16.4 | 13.3 | 0.81 | 6.8 | NE | 93 | 1020 |
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
- Commack — 40.750°, -73.250°, ERA5 grid cell center, 10.9 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 29 September 2023 specifically — not a monthly average. See the Commack 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 Commack, United States (40.75°N, 73.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Commack, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Commack, 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 Commack, 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.