Home / Naples / 30 September 2017
Naples
United States · 30 September 2017
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Average
10.9°C
low 6°C · high 15.6°C
Rainfall
2.1mm
rain recorded
Wind
1.8m/s
daily average
Humidity
72.2%
daily average
Cloud
71%
cover
Pressure
1014hPa
daily average
The temperature ranged from 6°C around 03:00 to 15.6°C around 13:00. Rain was recorded across 3 hours, from around 15:00 to 19:00 (2.2mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
13th percentile
Low temperature
30th percentile
Rainfall
90th percentile
Wind
56th 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 14.2°C, versus 10.9°C on this specific day.
Sun & daylight
Sunrise
07:13
Sunset
19:01
Day length
11h 47m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Denver.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 06:00 | 8.5°C | 7°C | 0 | 0.8 | NNW | 85 | 1017 |
| 01:00 | 07:00 | 8°C | 6°C | 0 | 1.4 | NNW | 87 | 1017 |
| 02:00 | 08:00 | 7.6°C | 5.5°C | 0 | 1.6 | NW | 86 | 1017 |
| 03:00 | 09:00 | 6°C | 3.7°C | 0 | 1.5 | NW | 87 | 1017 |
| 04:00 | 10:00 | 7.7°C | 5.3°C | 0 | 1.8 | NNW | 84 | 1017 |
| 05:00 | 11:00 | 7.5°C | 5.2°C | 0 | 1.6 | NNW | 84 | 1017 |
| 06:00 | 12:00 | 7.8°C | 5.5°C | 0 | 1.6 | N | 83 | 1017 |
| 07:00 | 13:00 | 8.1°C | 6.1°C | 0 | 1.3 | N | 81 | 1016 |
| 08:00 | 14:00 | 9.6°C | 7.8°C | 0 | 1.3 | N | 78 | 1016 |
| 09:00 | 15:00 | 11.5°C | 10°C | 0 | 0.7 | NNW | 65 | 1016 |
| 10:00 | 16:00 | 11.5°C | 9.9°C | 0 | 0.4 | SW | 60 | 1016 |
| 11:00 | 17:00 | 13.6°C | 11.5°C | 0 | 1.2 | SSW | 54 | 1016 |
| 12:00 | 18:00 | 15.1°C | 12.2°C | 0 | 2.5 | SSW | 50 | 1015 |
| 13:00 | 19:00 | 15.6°C | 12.1°C | 0.07 | 3.4 | SSW | 49 | 1014 |
| 14:00 | 20:00 | 14.7°C | 10.2°C | 0.02 | 4.4 | SSW | 48 | 1013 |
| 15:00 | 21:00 | 14.7°C | 10.6°C | 0.12 | 4.4 | SSW | 54 | 1012 |
| 16:00 | 22:00 | 15.6°C | 12.7°C | 0.01 | 3.1 | S | 57 | 1011 |
| 17:00 | 23:00 | 14.9°C | 12.1°C | 0.03 | 2.7 | S | 55 | 1010 |
| 18:00 | 00:00 | 14.3°C | 10.7°C | 0.31 | 4 | SW | 60 | 1011 |
| 19:00 | 01:00 | 12.5°C | 11.1°C | 1.58 | 1.3 | WSW | 74 | 1012 |
| 20:00 | 02:00 | 11.7°C | 10.7°C | 0.02 | 0.8 | NE | 81 | 1011 |
| 21:00 | 03:00 | 9.8°C | 8.8°C | 0 | 0.8 | NNE | 89 | 1011 |
| 22:00 | 04:00 | 8.7°C | 7.6°C | 0 | 0.7 | NNW | 91 | 1011 |
| 23:00 | 05:00 | 7.8°C | 6.3°C | 0 | 1 | NW | 91 | 1012 |
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
- Naples — 40.500°, -109.500°, ERA5 grid cell center, 8.1 km from requested point
- Time zone
- America/Denver
- What's shown here
- The hourly and daily record for 30 September 2017 specifically — not a monthly average. See the Naples 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 Naples, United States (40.50°N, 109.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Naples, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Naples, 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 Naples, 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.