PastClimate

Home / Johnson City / 27 August 2017

Johnson City

United States · 27 August 2017

Johnson CityUnited States12:19 PM localChange location

← 26 August 201728 August 2017 →

Try “Dubai”, “Sydney”, “New York”, or a postal/zip code (AU & US). Data currently loaded for the UAE, Australia, USA, Canada, France, India and the UK.

Average

21.7°C

low 20.4° · high 23°

Rainfall

109.6mm

rain recorded

Wind

8.7m/s

daily average

Humidity

95.9%

daily average

Cloud

100%

cover

Pressure

1010hPa

daily average

The temperature ranged from 20.4°C around 23:00 to 23°C around 19:00. Rain was recorded across 24 hours, from around 00:00 to 23:00 (109.6mm total).

How unusual was this day?

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

High temperature

0th percentile

Low temperature

3th percentile

Rainfall

100th percentile

Wind

100th 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 28.4°C, versus 21.7°C on this specific day.

Sun & daylight

Sunrise

07:08

Sunset

20:02

Day length

12h 54m

Hour by hour

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

↓ 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
00:0005:0021.819.92.239.2NNE1001010
01:0006:0022.220.22.699.4NNE981009
02:0007:0022.119.84.059.8NNE981009
03:0008:002219.46.9710.1NNE981008
04:0009:0021.919.26.1110.2NNE981008
05:0010:0021.518.87.2310NNE981008
06:0011:0021.418.79.5110NNE981008
07:0012:0021.318.910.429.4NNE981009
08:0013:0021.319.211.448.9N981009
09:0014:0020.818.49.989.2N1001010
10:0015:0021.718.98.59.5N931010
11:0016:0021.217.78.6410.7N961011
12:0017:0021.418.69.9310.1NNE991011
13:0018:0021.519.66.788.9NNE991011
14:0019:0021.620.40.88.3NNE1001011
15:0020:0021.820.70.718.1NNE1001011
16:0021:002220.80.698.1N961010
17:0022:0021.921.30.666.5N931010
18:0023:0022.421.40.57.1N901010
19:0000:002322.10.337.3N891011
20:0001:0022.421.40.297.2N901011
21:0002:0022.221.20.186.9N881011
22:0003:0021.119.90.477NNE921011
23:0004:0020.418.80.477N921012

Same date, other years

202520242023202220212020201920182016

Nearby cities

Fredericksburg

24km away, same day

Granite Shoals

27.8km away, same day

Canyon Lake

36.8km away, same day

Marble Falls

36.7km away, same day

Horseshoe Bay

36.7km away, same day

Lakeway

48km away, same day

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
Johnson City — 30.250°, -98.500°, ERA5 grid cell center, 9.0 km from requested point
Time zone
America/Chicago
What's shown here
The hourly and daily record for 27 August 2017 specifically — not a monthly average. See the Johnson City 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 Johnson City, United States (30.25°N, 98.50°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 Johnson City, 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 Johnson City, 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 Johnson City, 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.