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Gary

United States · 17 August 2018

GaryUnited States7:47 AM localChange location

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Average

23.1°C

low 21.2° · high 25.6°

Rainfall

14.4mm

rain recorded

Wind

1.6m/s

daily average

Humidity

89.7%

daily average

Cloud

82%

cover

Pressure

1014hPa

daily average

The temperature ranged from 21.2°C around 05:00 to 25.6°C around 16:00. Rain was recorded across 13 hours, from around 02:00 to 16:00 (14.4mm total).

How unusual was this day?

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

High temperature

34th percentile

Low temperature

80th percentile

Rainfall

94th percentile

Wind

10th 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 22.7°C, versus 23.1°C on this specific day.

Sun & daylight

Sunrise

05:59

Sunset

19:45

Day length

13h 46m

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
00:0005:0023.227.30.020.7N921013
01:0006:0022.626.500.7N941013
02:0007:0022.326.21.940.8SW951013
03:0008:0022.5260.961.4SW951013
04:0009:0022.2260.051.1SSW971014
05:0010:0021.224.40.080.9S951013
06:0011:0021.222.70.113.3SSW941014
07:0012:0021.324.10.121.6SW941014
08:0013:0021.424.10.141.9W951014
09:0014:0022.225.30.181.6WNW931014
10:0015:0023.526.50.261.6W851014
11:0016:002426.91.131.8W831014
12:0017:0024.627.71.831.7WNW811015
13:0018:0024.327.83.021.5NW851014
14:0019:0024.328.12.321.6NNW891014
15:0020:0024.928.91.611.8N891014
16:0021:0025.629.20.622.5N871014
17:0022:0024.227.20.022.3NE861013
18:0023:0024.126.902.1ENE841013
19:0000:002426.801.8ENE831014
20:0001:0023.225.901.7NE841015
21:0002:0023.125.901.6NE851015
22:0003:0022.425.601.6NE941015
23:0004:0022.12501.9NNE951015

Same date, other years

202520242023202220212020201920172016

Nearby cities

Portage

0km away, same day

Merrillville

0km away, same day

Crown Point

0km away, same day

Hobart

0km away, same day

Lake Station

0km away, same day

Lakes of the Four Seasons

0km 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
Gary — 41.500°, -87.250°, ERA5 grid cell center, 13.1 km from requested point
Time zone
America/Chicago
What's shown here
The hourly and daily record for 17 August 2018 specifically — not a monthly average. See the Gary 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 Gary, United States (41.50°N, 87.25°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 Gary, 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 Gary, 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 Gary, 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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