Home / Hartford / 27 September 2024
Hartford
United States · 27 September 2024
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Average
23.1°C
low 19.8° · high 28.1°
Rainfall
0.6mm
dry day
Wind
5.4m/s
daily average
Humidity
69.6%
daily average
Cloud
39%
cover
Pressure
1002hPa
daily average
The temperature ranged from 19.8°C around 05:00 to 28.1°C around 14:00. Rain was recorded for one hour, around 00:00 (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
19th percentile
Low temperature
38th percentile
Rainfall
75th percentile
Wind
98th 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 24.9°C, versus 23.1°C on this specific day.
Sun & daylight
Sunrise
06:34
Sunset
18:32
Day length
11h 58m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 21 | 19.3 | 0.5 | 8.1 | NW | 97 | 993 |
| 01:00 | 06:00 | 20.6 | 18.9 | 0.09 | 7.5 | NW | 95 | 993 |
| 02:00 | 07:00 | 20.5 | 18.9 | 0.03 | 7 | WNW | 92 | 994 |
| 03:00 | 08:00 | 20.5 | 19.1 | 0 | 6.4 | WNW | 89 | 995 |
| 04:00 | 09:00 | 20.7 | 19.6 | 0 | 5.7 | W | 86 | 996 |
| 05:00 | 10:00 | 19.8 | 18.8 | 0 | 5 | W | 85 | 998 |
| 06:00 | 11:00 | 19.8 | 18.7 | 0 | 5.1 | WSW | 85 | 1000 |
| 07:00 | 12:00 | 19.9 | 18.5 | 0 | 5.3 | WSW | 83 | 1001 |
| 08:00 | 13:00 | 20.8 | 19.7 | 0 | 4.9 | WSW | 78 | 1002 |
| 09:00 | 14:00 | 22.2 | 20.5 | 0 | 5.7 | WSW | 71 | 1003 |
| 10:00 | 15:00 | 23.8 | 21.9 | 0 | 5.8 | WSW | 64 | 1004 |
| 11:00 | 16:00 | 25.3 | 23.3 | 0 | 5.7 | WSW | 57 | 1004 |
| 12:00 | 17:00 | 26.9 | 24.4 | 0 | 5.9 | WSW | 48 | 1005 |
| 13:00 | 18:00 | 27.9 | 25 | 0 | 6.1 | SW | 43 | 1004 |
| 14:00 | 19:00 | 28.1 | 25.1 | 0 | 6.3 | SW | 43 | 1004 |
| 15:00 | 20:00 | 28 | 24.9 | 0 | 6.5 | SW | 44 | 1004 |
| 16:00 | 21:00 | 27.7 | 25 | 0 | 6.2 | SW | 46 | 1004 |
| 17:00 | 22:00 | 26.3 | 24.7 | 0 | 4.9 | SW | 52 | 1004 |
| 18:00 | 23:00 | 25.2 | 24 | 0 | 4.5 | SW | 56 | 1005 |
| 19:00 | 00:00 | 23.6 | 22.8 | 0 | 4.1 | SW | 63 | 1006 |
| 20:00 | 01:00 | 22.6 | 22.1 | 0 | 3.8 | SW | 68 | 1006 |
| 21:00 | 02:00 | 21.7 | 21.5 | 0 | 3.5 | SW | 73 | 1007 |
| 22:00 | 03:00 | 21 | 20.9 | 0 | 3.3 | SW | 76 | 1008 |
| 23:00 | 04:00 | 20.6 | 20.6 | 0 | 3.3 | SSW | 78 | 1009 |
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
- Hartford — 31.000°, -85.750°, ERA5 grid cell center, 12.5 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 27 September 2024 specifically — not a monthly average. See the Hartford 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 (2026-07-16). Historical climate data for Hartford, United States (31.00°N, 85.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Hartford, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Hartford, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 16, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Hartford, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-16},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.