Home / Gilbert / 17 September 2018
Gilbert
United States · 17 September 2018
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Average
34.6°C
low 27.2°C · high 41°C
Rainfall
0mm
dry day
Wind
1.5m/s
daily average
Humidity
27%
daily average
Cloud
4%
cover
Pressure
1007hPa
daily average
The temperature ranged from 27.2°C around 06:00 to 41°C around 16:00. No measurable rain was recorded during the day.
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
91th percentile
Low temperature
89th percentile
Rainfall
73th percentile
Wind
31th 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 30.5°C, versus 34.6°C on this specific day.
Sun & daylight
Sunrise
06:11
Sunset
18:30
Day length
12h 19m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Phoenix.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 07:00 | 31.5°C | 31.3°C | 0 | 2.4 | NNW | 36 | 1007 |
| 01:00 | 08:00 | 30.4°C | 30.5°C | 0 | 1.9 | N | 38 | 1007 |
| 02:00 | 09:00 | 29.6°C | 29.9°C | 0 | 1.4 | N | 39 | 1007 |
| 03:00 | 10:00 | 29.5°C | 29.3°C | 0 | 0.5 | ENE | 31 | 1008 |
| 04:00 | 11:00 | 29.8°C | 29.5°C | 0 | 0.8 | ESE | 31 | 1007 |
| 05:00 | 12:00 | 29.7°C | 29.3°C | 0 | 1 | SE | 32 | 1008 |
| 06:00 | 13:00 | 27.2°C | 27°C | 0 | 1 | SE | 37 | 1008 |
| 07:00 | 14:00 | 28.3°C | 28°C | 0 | 1.3 | SE | 36 | 1009 |
| 08:00 | 15:00 | 30.4°C | 30°C | 0 | 1.1 | SE | 31 | 1009 |
| 09:00 | 16:00 | 33.1°C | 33.4°C | 0 | 0.8 | S | 29 | 1009 |
| 10:00 | 17:00 | 35.5°C | 36.2°C | 0 | 0.5 | SW | 27 | 1009 |
| 11:00 | 18:00 | 37.2°C | 38.2°C | 0 | 0.3 | WNW | 25 | 1009 |
| 12:00 | 19:00 | 38.5°C | 39.2°C | 0 | 0.9 | WNW | 24 | 1008 |
| 13:00 | 20:00 | 39.9°C | 40.1°C | 0 | 1.6 | WNW | 22 | 1007 |
| 14:00 | 21:00 | 40.7°C | 40°C | 0 | 2.1 | WNW | 19 | 1006 |
| 15:00 | 22:00 | 41°C | 40.2°C | 0 | 2.2 | WNW | 18 | 1005 |
| 16:00 | 23:00 | 41°C | 40.2°C | 0 | 2.3 | WNW | 18 | 1004 |
| 17:00 | 00:00 | 40.6°C | 39.4°C | 0 | 2.6 | WNW | 19 | 1004 |
| 18:00 | 01:00 | 40.2°C | 38.8°C | 0 | 2.6 | WNW | 18 | 1004 |
| 19:00 | 02:00 | 37.9°C | 37.1°C | 0 | 1.6 | W | 20 | 1004 |
| 20:00 | 03:00 | 36.3°C | 35.7°C | 0 | 1.7 | WSW | 23 | 1004 |
| 21:00 | 04:00 | 35.2°C | 34.3°C | 0 | 1.8 | WSW | 23 | 1005 |
| 22:00 | 05:00 | 34.3°C | 33.3°C | 0 | 2.1 | WSW | 25 | 1006 |
| 23:00 | 06:00 | 32.2°C | 30.6°C | 0 | 2.5 | W | 26 | 1006 |
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
- Gilbert — 33.250°, -111.750°, ERA5 grid cell center, 12.0 km from requested point
- Time zone
- America/Phoenix
- What's shown here
- The hourly and daily record for 17 September 2018 specifically — not a monthly average. See the Gilbert 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 (2026-07-21). Historical climate data for Gilbert, United States (33.25°N, 111.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Gilbert, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Gilbert, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 21, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Gilbert, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-21},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.