Skip to main content

Home / Post / 21 April 2017

Post

United States · 21 April 2017

PostUnited States5:55 PM localChange location

← 20 April 201722 April 2017 →

Average

21.6°C

low 11.5°C · high 32.3°C

Rainfall

0mm

dry day

Wind

4.7m/s

daily average

Humidity

53.9%

daily average

Cloud

2%

cover

Pressure

1008hPa

daily average

The temperature ranged from 11.5°C around 23:00 to 32.3°C around 16:00. No measurable rain was recorded during the day.

How unusual was this day?

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

High temperature

93th percentile

Low temperature

54th percentile

Rainfall

62th percentile

Wind

44th 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 17.7°C, versus 21.6°C on this specific day.

Sun & daylight

Sunrise

07:08

Sunset

20:21

Day length

13h 13m

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 timeUTCTempFeelsRain mmWind m/sDirHumidity %Pressure hPa
00:0005:0016.5°C13.9°C05.2NE811012
01:0006:0016.5°C14.5°C04.2NE801012
02:0007:0016°C14.6°C02.9ENE791011
03:0008:0016°C15.5°C01.9E801010
04:0009:0015.2°C14.8°C01.8SE861010
05:0010:0015.6°C15.5°C01.8SSE881010
06:0011:0016.6°C15.3°C03.6S841009
07:0012:0017.4°C14.9°C04.9SSW761008
08:0013:0018.4°C15.8°C05.2SSW731009
09:0014:0019.7°C17.1°C05.5SW691009
10:0015:0024°C21°C05.6SW511008
11:0016:0025.6°C22.7°C05.3WSW441008
12:0017:0027.4°C23.7°C04.7WNW301008
13:0018:0028.4°C24.4°C04.2WNW241006
14:0019:0029.1°C25°C03.8WNW201005
15:0020:0030.4°C25.7°C04WNW151005
16:0021:0032.3°C26.3°C04.3WNW71004
17:0022:0029.2°C24.8°C03.2NW141004
18:0023:0029°C24.8°C02.4N121004
19:0000:0028°C22.9°C04.3NE151005
20:0001:0023.1°C17.6°C08NE451007
21:0002:0018.8°C13°C09.3NNE661010
22:0003:0012.9°C6.5°C08.8NNE781012
23:0004:0011.5°C5.2°C08.1NE771014

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
Post — 33.250°, -101.500°, ERA5 grid cell center, 13.0 km from requested point
Time zone
America/Chicago
What's shown here
The hourly and daily record for 21 April 2017 specifically — not a monthly average. See the Post 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 (2026-07-18). Historical climate data for Post, United States (33.25°N, 101.50°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 Post, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 18, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Post, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Post, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-18},
  url = {https://www.pastclimate.com/}
}

Notice something wrong with this data? Report a data issue.