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Apison

United States · 18 August 2018

ApisonUnited States3:51 AM localChange location

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Average

25°C

low 21.9° · high 30.1°

Rainfall

10.7mm

rain recorded

Wind

2.8m/s

daily average

Humidity

85.7%

daily average

Cloud

72%

cover

Pressure

1016hPa

daily average

The temperature ranged from 21.9°C around 05:00 to 30.1°C around 15:00. Rain was recorded across 14 hours, from around 00:00 to 21:00 (10.8mm total).

How unusual was this day?

Compared against the same 135 calendar days (±7 days) across the other 9 years on file.

High temperature

27th percentile

Low temperature

44th percentile

Rainfall

93th percentile

Wind

93th 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 26.1°C, versus 25°C on this specific day.

Sun & daylight

Sunrise

07:02

Sunset

20:24

Day length

13h 22m

Hour by hour

Temperature (line) and hourly rainfall (bars), local time — America/New_York.

↓ Download CSV
00:0006:0012:0018:0023:00

Cumulative rainfall through the day.

00:0006:0012:0018:0023:00
Local timeUTCTemp °CFeels °CRain mmWind m/sDirHumidity %Pressure hPa
00:0004:0023.325.81.083.2SSE931019
01:0005:0022.224.71.543.1S981018
02:0006:002224.30.43.2S981018
03:0007:0022.124.52.53.2SSW981018
04:0008:0022.224.51.843SSW971017
05:0009:0021.924.30.263SSW981017
06:0010:0023.2260.73S951017
07:0011:0023.426.30.43.1S951017
08:0012:0023.325.50.314SW951017
09:0013:0023.325.40.23.8SW941018
10:0014:0023.426.10.13.1SW931018
11:0015:0024.827.60.062.3SSW821017
12:0016:0026.5300.092.3SW811016
13:0017:0027.731.30.072.7SW771016
14:0018:0029.132.60.072.8WSW711015
15:0019:0030.133.40.042.6SW651014
16:0020:0028.531.10.012.5SW651014
17:0021:0027.330.10.32.9WSW741013
18:0022:0027.431.30.341.3W731012
19:0023:0026.330.40.032SSW841013
20:0000:0026.529.50.092.6S781013
21:0001:0026.128.90.223S791014
22:0002:0025.628.70.062.5SSE821014
23:0003:0024.728.20.062.4S911014

Same date, other years

202520242023202220212020201920172016

Nearby cities

Collegedale

0km away, same day

South Cleveland

0km away, same day

Ringgold

0km away, same day

Chattanooga

22.8km away, same day

East Chattanooga

22.8km away, same day

East Ridge

22.8km away, same day

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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
Apison — 35.000°, -85.000°, ERA5 grid cell center, 3.4 km from requested point
Time zone
America/New_York
What's shown here
The hourly and daily record for 18 August 2018 specifically — not a monthly average. See the Apison 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

Plain text
PastClimate (2026-07-17). Historical climate data for Apison, United States (35.00°N, 85.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
APA
PastClimate. (2026). Historical climate data for Apison, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Apison, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Apison, 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/}
}

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