Mack
United States · 27 October 2017
← 26 October 201728 October 2017 →
Average
10.8°C
low 4.4°C · high 17.2°C
Rainfall
13.5mm
rain recorded
Wind
4.4m/s
daily average
Humidity
72.9%
daily average
Cloud
72%
cover
Pressure
1010hPa
daily average
The temperature ranged from 4.4°C around 23:00 to 17.2°C around 13:00. Rain was recorded across 7 hours, from around 17:00 to 23:00 (13.5mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
55th percentile
Low temperature
28th percentile
Rainfall
91th percentile
Wind
90th 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 11.8°C, versus 10.8°C on this specific day.
Sun & daylight
Sunrise
08:01
Sunset
18:43
Day length
10h 42m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 04:00 | 10.1°C | 6°C | 0 | 4.1 | SSE | 66 | 1010 |
| 01:00 | 05:00 | 9.7°C | 5.6°C | 0 | 4.1 | SSE | 68 | 1009 |
| 02:00 | 06:00 | 10°C | 5.8°C | 0 | 4.3 | S | 70 | 1009 |
| 03:00 | 07:00 | 10.6°C | 6.4°C | 0 | 4.7 | S | 72 | 1009 |
| 04:00 | 08:00 | 11.3°C | 7.1°C | 0 | 4.9 | S | 74 | 1009 |
| 05:00 | 09:00 | 11.4°C | 7.3°C | 0 | 4.9 | SSW | 76 | 1009 |
| 06:00 | 10:00 | 11°C | 6.7°C | 0 | 4.9 | SSW | 74 | 1008 |
| 07:00 | 11:00 | 11.2°C | 7°C | 0 | 4.9 | SSW | 72 | 1009 |
| 08:00 | 12:00 | 11.4°C | 7.2°C | 0 | 4.8 | SSW | 71 | 1009 |
| 09:00 | 13:00 | 12°C | 7.8°C | 0 | 4.9 | SSW | 71 | 1009 |
| 10:00 | 14:00 | 13.8°C | 10.3°C | 0 | 4.4 | SSW | 68 | 1010 |
| 11:00 | 15:00 | 15.9°C | 11.8°C | 0 | 5.2 | SW | 60 | 1010 |
| 12:00 | 16:00 | 16.8°C | 12.7°C | 0 | 5.5 | SW | 60 | 1010 |
| 13:00 | 17:00 | 17.2°C | 12.6°C | 0 | 6.1 | SW | 57 | 1010 |
| 14:00 | 18:00 | 16.8°C | 12.5°C | 0 | 5.5 | WSW | 57 | 1010 |
| 15:00 | 19:00 | 14.9°C | 11.2°C | 0 | 4.4 | W | 61 | 1010 |
| 16:00 | 20:00 | 11.9°C | 7.9°C | 0.03 | 4.3 | WNW | 68 | 1010 |
| 17:00 | 21:00 | 9.6°C | 5.7°C | 0.21 | 4 | NW | 73 | 1011 |
| 18:00 | 22:00 | 7.2°C | 3.5°C | 1.03 | 3.9 | WNW | 89 | 1012 |
| 19:00 | 23:00 | 6.2°C | 2°C | 2.04 | 4.1 | WNW | 87 | 1013 |
| 20:00 | 00:00 | 5.8°C | 2°C | 2.8 | 3.5 | WNW | 87 | 1014 |
| 21:00 | 01:00 | 5.7°C | 2.5°C | 2.87 | 2.6 | NW | 88 | 1014 |
| 22:00 | 02:00 | 5.3°C | 2°C | 2.35 | 2.7 | NW | 89 | 1013 |
| 23:00 | 03:00 | 4.4°C | 0.7°C | 2.14 | 3.3 | NW | 91 | 1014 |
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
- Mack — 39.250°, -84.750°, ERA5 grid cell center, 13.4 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 27 October 2017 specifically — not a monthly average. See the Mack 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 (2026-07-19). Historical climate data for Mack, United States (39.25°N, 84.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Mack, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Mack, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 19, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Mack, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-19},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.