Post
United States · 21 April 2018
← 20 April 201822 April 2018 →
Average
15.8°C
low 9.5°C · high 19.3°C
Rainfall
2.3mm
rain recorded
Wind
6.2m/s
daily average
Humidity
69.2%
daily average
Cloud
43%
cover
Pressure
1014hPa
daily average
The temperature ranged from 9.5°C around 23:00 to 19.3°C around 13:00. Rain was recorded across 6 hours, from around 02:00 to 17:00 (2.3mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
15th percentile
Low temperature
36th percentile
Rainfall
89th percentile
Wind
80th 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 18.1°C, versus 15.8°C on this specific day.
Sun & daylight
Sunrise
07:08
Sunset
20:21
Day length
13h 12m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 16.4°C | 12.6°C | 0 | 6.8 | S | 80 | 1012 |
| 01:00 | 06:00 | 16.4°C | 12.5°C | 0.01 | 6.9 | S | 80 | 1012 |
| 02:00 | 07:00 | 16.5°C | 12.7°C | 0.14 | 6.7 | S | 79 | 1011 |
| 03:00 | 08:00 | 16.5°C | 13.2°C | 0.1 | 6 | S | 78 | 1011 |
| 04:00 | 09:00 | 15.7°C | 12.8°C | 0.1 | 5.3 | S | 82 | 1010 |
| 05:00 | 10:00 | 13.9°C | 10.8°C | 0.09 | 5.8 | S | 95 | 1010 |
| 06:00 | 11:00 | 14.1°C | 11.3°C | 0.07 | 5.4 | S | 94 | 1011 |
| 07:00 | 12:00 | 14.4°C | 11.8°C | 0.06 | 5.2 | S | 92 | 1009 |
| 08:00 | 13:00 | 14.2°C | 11.4°C | 0.05 | 5.3 | SW | 92 | 1010 |
| 09:00 | 14:00 | 14°C | 10.7°C | 0.03 | 5.4 | W | 85 | 1011 |
| 10:00 | 15:00 | 16.4°C | 11.8°C | 0 | 7 | NW | 70 | 1011 |
| 11:00 | 16:00 | 18.7°C | 14°C | 0 | 6.9 | NNW | 58 | 1012 |
| 12:00 | 17:00 | 19.1°C | 14.1°C | 0.02 | 6.8 | NNW | 52 | 1013 |
| 13:00 | 18:00 | 19.3°C | 14.4°C | 0 | 6.7 | NNW | 51 | 1013 |
| 14:00 | 19:00 | 19.1°C | 13.8°C | 0.07 | 6.9 | NNW | 48 | 1013 |
| 15:00 | 20:00 | 18.9°C | 12.7°C | 0.52 | 7.3 | NNW | 42 | 1014 |
| 16:00 | 21:00 | 18.7°C | 12.5°C | 0.64 | 7.4 | N | 42 | 1014 |
| 17:00 | 22:00 | 15.9°C | 10.1°C | 0.36 | 6.9 | N | 51 | 1016 |
| 18:00 | 23:00 | 16.1°C | 11°C | 0 | 6.2 | N | 54 | 1017 |
| 19:00 | 00:00 | 15.9°C | 10.7°C | 0 | 6.5 | N | 57 | 1018 |
| 20:00 | 01:00 | 15°C | 10°C | 0 | 6.2 | N | 60 | 1018 |
| 21:00 | 02:00 | 13.8°C | 9.4°C | 0 | 5.3 | NNE | 64 | 1019 |
| 22:00 | 03:00 | 10.1°C | 6°C | 0 | 4.7 | NNE | 78 | 1020 |
| 23:00 | 04:00 | 9.5°C | 5.3°C | 0 | 4.8 | NNE | 80 | 1021 |
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
- 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 2018 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
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/
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/
"Historical Climate Data for Post, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 18, 2026, www.pastclimate.com.
@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.