Home / Naperville / 26 June 2017
Naperville
United States · 26 June 2017
Average
16.4°C
low 11.9°C · high 21°C
Rainfall
0.6mm
dry day
Wind
3.9m/s
daily average
Humidity
62%
daily average
Cloud
30%
cover
Pressure
1019hPa
daily average
The temperature ranged from 11.9°C around 05:00 to 21°C around 15:00. Rain was recorded across 2 hours, from around 12:00 to 17:00 (0.6mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
2th percentile
Low temperature
4th percentile
Rainfall
52th percentile
Wind
81th 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 23.8°C, versus 16.4°C on this specific day.
Sun & daylight
Sunrise
05:19
Sunset
20:31
Day length
15h 12m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 14.6°C | 12.6°C | 0 | 3.2 | W | 78 | 1020 |
| 01:00 | 06:00 | 13.5°C | 11.7°C | 0 | 2.7 | W | 81 | 1020 |
| 02:00 | 07:00 | 12.9°C | 11.1°C | 0 | 2.6 | W | 82 | 1020 |
| 03:00 | 08:00 | 12.6°C | 10.6°C | 0 | 2.7 | W | 83 | 1019 |
| 04:00 | 09:00 | 12.3°C | 10°C | 0 | 3.1 | W | 84 | 1020 |
| 05:00 | 10:00 | 11.9°C | 10.3°C | 0 | 2.1 | WNW | 84 | 1020 |
| 06:00 | 11:00 | 11.9°C | 10.2°C | 0 | 2.2 | W | 83 | 1021 |
| 07:00 | 12:00 | 13.3°C | 11.7°C | 0 | 2 | W | 78 | 1020 |
| 08:00 | 13:00 | 15.1°C | 13.5°C | 0 | 2.4 | W | 73 | 1020 |
| 09:00 | 14:00 | 16.6°C | 14.3°C | 0 | 3.5 | W | 68 | 1020 |
| 10:00 | 15:00 | 19°C | 15.7°C | 0 | 4.1 | W | 49 | 1020 |
| 11:00 | 16:00 | 19.8°C | 15.7°C | 0.05 | 5.2 | W | 47 | 1019 |
| 12:00 | 17:00 | 20°C | 15.3°C | 0.1 | 6 | W | 45 | 1019 |
| 13:00 | 18:00 | 20.6°C | 15.5°C | 0.07 | 6.4 | WNW | 43 | 1018 |
| 14:00 | 19:00 | 20.7°C | 15.4°C | 0.02 | 6.7 | WNW | 42 | 1018 |
| 15:00 | 20:00 | 21°C | 15.6°C | 0 | 6.5 | WNW | 40 | 1018 |
| 16:00 | 21:00 | 20.6°C | 15.9°C | 0.02 | 6.4 | WNW | 48 | 1018 |
| 17:00 | 22:00 | 20°C | 15.4°C | 0.31 | 5.4 | NW | 42 | 1017 |
| 18:00 | 23:00 | 19°C | 15.3°C | 0 | 4.2 | NW | 45 | 1017 |
| 19:00 | 00:00 | 18.5°C | 14.5°C | 0 | 4.4 | NW | 45 | 1017 |
| 20:00 | 01:00 | 17.4°C | 13.6°C | 0 | 4.2 | NW | 48 | 1018 |
| 21:00 | 02:00 | 16.2°C | 12.9°C | 0 | 3.2 | NW | 50 | 1018 |
| 22:00 | 03:00 | 13.9°C | 12.3°C | 0 | 2.2 | NW | 74 | 1019 |
| 23:00 | 04:00 | 13.1°C | 11.5°C | 0 | 2 | NW | 75 | 1019 |
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
- Naperville — 41.750°, -88.250°, ERA5 grid cell center, 9.4 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 26 June 2017 specifically — not a monthly average. See the Naperville 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 Naperville, United States (41.75°N, 88.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Naperville, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Naperville, 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 Naperville, 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.