Home / Greenock / 8 September 2017
Greenock
United States · 8 September 2017
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Average
14.5°C
low 10.7° · high 19.6°
Rainfall
0.9mm
dry day
Wind
2.4m/s
daily average
Humidity
75.3%
daily average
Cloud
40%
cover
Pressure
1022hPa
daily average
The temperature ranged from 10.7°C around 06:00 to 19.6°C around 16:00. Rain was recorded across 3 hours, from around 12:00 to 14:00 (0.9mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
1th percentile
Low temperature
12th percentile
Rainfall
66th percentile
Wind
58th 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 20.6°C, versus 14.5°C on this specific day.
Sun & daylight
Sunrise
06:53
Sunset
19:38
Day length
12h 46m
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 | 12 | 10.2 | 0.09 | 2.6 | WSW | 86 | 1019 |
| 01:00 | 05:00 | 12 | 10.1 | 0 | 2.6 | SW | 85 | 1019 |
| 02:00 | 06:00 | 11.4 | 9.4 | 0 | 2.7 | SW | 86 | 1020 |
| 03:00 | 07:00 | 11.4 | 9.3 | 0 | 2.7 | SW | 86 | 1020 |
| 04:00 | 08:00 | 11 | 8.9 | 0 | 2.7 | SW | 87 | 1020 |
| 05:00 | 09:00 | 10.7 | 8.4 | 0 | 2.8 | SW | 86 | 1020 |
| 06:00 | 10:00 | 10.7 | 8.5 | 0 | 2.8 | SW | 89 | 1021 |
| 07:00 | 11:00 | 10.8 | 8.6 | 0 | 2.9 | SW | 88 | 1021 |
| 08:00 | 12:00 | 11.2 | 9.2 | 0 | 2.7 | SW | 89 | 1022 |
| 09:00 | 13:00 | 12.4 | 11 | 0 | 2.4 | SW | 89 | 1022 |
| 10:00 | 14:00 | 14.6 | 13.1 | 0 | 2.5 | WSW | 79 | 1022 |
| 11:00 | 15:00 | 16.9 | 14.9 | 0.01 | 2.6 | W | 61 | 1023 |
| 12:00 | 16:00 | 18 | 16.2 | 0.21 | 2.7 | W | 60 | 1022 |
| 13:00 | 17:00 | 18.4 | 16.5 | 0.11 | 2.5 | WNW | 55 | 1022 |
| 14:00 | 18:00 | 18.7 | 16.9 | 0.18 | 2.5 | WNW | 55 | 1022 |
| 15:00 | 19:00 | 19.4 | 17.4 | 0.08 | 2.7 | WNW | 53 | 1022 |
| 16:00 | 20:00 | 19.6 | 17.4 | 0.07 | 3 | WNW | 51 | 1022 |
| 17:00 | 21:00 | 19.1 | 17.3 | 0.05 | 2.6 | WNW | 55 | 1022 |
| 18:00 | 22:00 | 17.9 | 17.9 | 0.06 | 1.3 | NW | 72 | 1022 |
| 19:00 | 23:00 | 16.8 | 16.6 | 0.07 | 1.1 | NW | 72 | 1023 |
| 20:00 | 00:00 | 15.3 | 14.7 | 0.01 | 1.2 | N | 76 | 1023 |
| 21:00 | 01:00 | 14.3 | 13.1 | 0 | 1.8 | N | 75 | 1024 |
| 22:00 | 02:00 | 13.3 | 12.2 | 0 | 1.6 | N | 79 | 1024 |
| 23:00 | 03:00 | 11.6 | 10.5 | 0 | 1.7 | N | 92 | 1025 |
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
- Greenock — 40.250°, -79.750°, ERA5 grid cell center, 8.4 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 8 September 2017 specifically — not a monthly average. See the Greenock 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 Greenock, United States (40.25°N, 79.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Greenock, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Greenock, 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 Greenock, 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.