Home / Commack / 4 October 2019
Commack
United States · 4 October 2019
← 3 October 20195 October 2019 →
Average
16.2°C
low 12.9°C · high 18.7°C
Rainfall
2.1mm
rain recorded
Wind
6.4m/s
daily average
Humidity
71.3%
daily average
Cloud
45%
cover
Pressure
1018hPa
daily average
The temperature ranged from 12.9°C around 23:00 to 18.7°C around 01:00. Rain was recorded across 5 hours, from around 00:00 to 04:00 (2.1mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
34th percentile
Low temperature
13th percentile
Rainfall
74th percentile
Wind
82th 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 17.9°C, versus 16.2°C on this specific day.
Sun & daylight
Sunrise
06:52
Sunset
18:30
Day length
11h 38m
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 | 18.3°C | 19°C | 0.34 | 1.8 | SE | 85 | 1014 |
| 01:00 | 05:00 | 18.7°C | 20.4°C | 0.4 | 0.7 | SSE | 87 | 1013 |
| 02:00 | 06:00 | 18.7°C | 20.1°C | 0.81 | 1.4 | W | 89 | 1013 |
| 03:00 | 07:00 | 18.4°C | 18.7°C | 0.32 | 2.8 | WNW | 90 | 1012 |
| 04:00 | 08:00 | 17.9°C | 16.6°C | 0.13 | 4.8 | WNW | 90 | 1012 |
| 05:00 | 09:00 | 17.7°C | 15.1°C | 0.07 | 6.5 | NW | 89 | 1013 |
| 06:00 | 10:00 | 15.9°C | 13.1°C | 0 | 5.8 | NW | 88 | 1013 |
| 07:00 | 11:00 | 15.7°C | 12.6°C | 0 | 5.8 | NW | 85 | 1014 |
| 08:00 | 12:00 | 15.9°C | 12.4°C | 0 | 6.2 | NW | 82 | 1014 |
| 09:00 | 13:00 | 16.6°C | 12.8°C | 0 | 6.7 | NW | 79 | 1015 |
| 10:00 | 14:00 | 17.1°C | 12.5°C | 0 | 7.7 | NW | 76 | 1016 |
| 11:00 | 15:00 | 17.4°C | 11.2°C | 0 | 9.1 | NNW | 65 | 1016 |
| 12:00 | 16:00 | 17.1°C | 10.5°C | 0 | 9.5 | NNW | 63 | 1017 |
| 13:00 | 17:00 | 16.6°C | 9.9°C | 0 | 9.3 | NNW | 61 | 1018 |
| 14:00 | 18:00 | 16.1°C | 9.3°C | 0 | 9.2 | NNW | 60 | 1019 |
| 15:00 | 19:00 | 16°C | 9.3°C | 0 | 8.8 | NNW | 59 | 1019 |
| 16:00 | 20:00 | 15.7°C | 9.2°C | 0 | 8.4 | N | 57 | 1020 |
| 17:00 | 21:00 | 15.5°C | 9.1°C | 0 | 7.9 | N | 56 | 1020 |
| 18:00 | 22:00 | 15.2°C | 9.6°C | 0 | 7 | N | 56 | 1021 |
| 19:00 | 23:00 | 14.7°C | 9.1°C | 0 | 6.7 | N | 57 | 1023 |
| 20:00 | 00:00 | 14.2°C | 8.4°C | 0 | 7 | N | 59 | 1024 |
| 21:00 | 01:00 | 13.8°C | 7.8°C | 0 | 7.3 | N | 59 | 1025 |
| 22:00 | 02:00 | 13.4°C | 7.4°C | 0 | 7.2 | N | 59 | 1026 |
| 23:00 | 03:00 | 12.9°C | 6.9°C | 0 | 7.2 | NNE | 61 | 1026 |
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 4 October 2019 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 (2026-07-20). 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 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Commack, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 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 2026-07-20},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.