Wheaton
United States · 23 July 2018
Average
24.9°C
low 23° · high 27.3°
Rainfall
40.7mm
rain recorded
Wind
3.3m/s
daily average
Humidity
90.1%
daily average
Cloud
98%
cover
Pressure
1014hPa
daily average
The temperature ranged from 23°C around 02:00 to 27.3°C around 17:00. Rain was recorded across 24 hours, from around 00:00 to 23:00 (40.7mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
4th percentile
Low temperature
56th percentile
Rainfall
99th percentile
Wind
95th 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 27.1°C, versus 24.9°C on this specific day.
Sun & daylight
Sunrise
06:00
Sunset
20:27
Day length
14h 27m
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 | 23.4 | 27.7 | 0.79 | 1.3 | E | 96 | 1012 |
| 01:00 | 05:00 | 23.6 | 27.9 | 1.38 | 1.2 | E | 96 | 1012 |
| 02:00 | 06:00 | 23 | 27 | 2.3 | 1.1 | E | 95 | 1011 |
| 03:00 | 07:00 | 23.2 | 26.7 | 2.87 | 2.2 | ESE | 96 | 1011 |
| 04:00 | 08:00 | 23.2 | 25.8 | 3.27 | 3.4 | SE | 96 | 1011 |
| 05:00 | 09:00 | 23.1 | 25.4 | 1.78 | 3.7 | SE | 96 | 1012 |
| 06:00 | 10:00 | 23.7 | 26.3 | 1.37 | 3.4 | ESE | 93 | 1013 |
| 07:00 | 11:00 | 23.3 | 25.9 | 1.63 | 3.2 | SE | 93 | 1013 |
| 08:00 | 12:00 | 23.4 | 26 | 1.16 | 3.2 | SE | 93 | 1014 |
| 09:00 | 13:00 | 24.1 | 26.7 | 0.8 | 3.4 | ESE | 91 | 1014 |
| 10:00 | 14:00 | 24.3 | 27.4 | 0.97 | 3.2 | SE | 94 | 1014 |
| 11:00 | 15:00 | 25.4 | 28.2 | 0.53 | 3.4 | SE | 86 | 1015 |
| 12:00 | 16:00 | 25.9 | 29 | 1.38 | 3.4 | SE | 86 | 1015 |
| 13:00 | 17:00 | 26 | 28.2 | 2.96 | 4.6 | SE | 86 | 1015 |
| 14:00 | 18:00 | 26.6 | 28.7 | 2.1 | 5 | SSE | 84 | 1015 |
| 15:00 | 19:00 | 27 | 29.7 | 0.72 | 4.6 | SSE | 84 | 1014 |
| 16:00 | 20:00 | 26.9 | 28.9 | 7.48 | 5 | SSE | 82 | 1015 |
| 17:00 | 21:00 | 27.3 | 30 | 4.58 | 4.4 | SSE | 82 | 1015 |
| 18:00 | 22:00 | 26.3 | 30.1 | 0.46 | 2.8 | SE | 88 | 1015 |
| 19:00 | 23:00 | 26.4 | 30.6 | 0.4 | 2.3 | SE | 87 | 1015 |
| 20:00 | 00:00 | 25.8 | 29.4 | 0.5 | 3 | SE | 89 | 1016 |
| 21:00 | 01:00 | 25.5 | 28.6 | 0.53 | 3.4 | SE | 88 | 1017 |
| 22:00 | 02:00 | 25.4 | 28.3 | 0.53 | 3.6 | SE | 88 | 1017 |
| 23:00 | 03:00 | 24.9 | 28.3 | 0.2 | 3.4 | SE | 94 | 1017 |
Nearby cities
Need this verified for an official or legal purpose? Request a weather verification report.
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
- Wheaton — 39.000°, -77.000°, ERA5 grid cell center, 6.5 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 23 July 2018 specifically — not a monthly average. See the Wheaton 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 Wheaton, United States (39.00°N, 77.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Wheaton, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Wheaton, 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 Wheaton, 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.