Home / Frederick / 24 September 2018
Frederick
United States · 24 September 2018
← 23 September 201825 September 2018 →
Average
16.3°C
low 14.8°C · high 17.7°C
Rainfall
12.8mm
rain recorded
Wind
2.8m/s
daily average
Humidity
95.6%
daily average
Cloud
100%
cover
Pressure
1027hPa
daily average
The temperature ranged from 14.8°C around 03:00 to 17.7°C around 13:00. Rain was recorded across 20 hours, from around 00:00 to 23:00 (12.8mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
6th percentile
Low temperature
44th percentile
Rainfall
90th percentile
Wind
71th 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 19.4°C, versus 16.3°C on this specific day.
Sun & daylight
Sunrise
06:59
Sunset
19:03
Day length
12h 4m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 04:00 | 15.3°C | 15.1°C | 0.11 | 2.2 | NE | 95 | 1025 |
| 01:00 | 05:00 | 15.1°C | 15.1°C | 0.03 | 1.9 | NE | 95 | 1025 |
| 02:00 | 06:00 | 14.8°C | 14.7°C | 0.02 | 1.9 | NE | 95 | 1025 |
| 03:00 | 07:00 | 14.8°C | 14.5°C | 0.46 | 2.2 | NE | 94 | 1025 |
| 04:00 | 08:00 | 15°C | 14.6°C | 0.33 | 2.4 | NE | 94 | 1025 |
| 05:00 | 09:00 | 15°C | 14.6°C | 0.41 | 2.4 | NE | 94 | 1025 |
| 06:00 | 10:00 | 15.6°C | 16.1°C | 0.07 | 1.6 | ENE | 96 | 1026 |
| 07:00 | 11:00 | 15.7°C | 16.1°C | 0.08 | 1.8 | ENE | 97 | 1027 |
| 08:00 | 12:00 | 15.8°C | 16.2°C | 0.12 | 1.8 | ENE | 97 | 1027 |
| 09:00 | 13:00 | 16°C | 16.5°C | 0.12 | 2.2 | ENE | 100 | 1028 |
| 10:00 | 14:00 | 16.2°C | 16.3°C | 0.22 | 2.8 | E | 99 | 1028 |
| 11:00 | 15:00 | 17°C | 16.7°C | 0.47 | 3.1 | E | 92 | 1029 |
| 12:00 | 16:00 | 17°C | 16.8°C | 0.28 | 3.1 | E | 93 | 1028 |
| 13:00 | 17:00 | 17.7°C | 17.7°C | 0.32 | 3.3 | E | 94 | 1028 |
| 14:00 | 18:00 | 17.7°C | 17.4°C | 0.16 | 3.6 | E | 93 | 1028 |
| 15:00 | 19:00 | 17.3°C | 17.1°C | 0.54 | 3.4 | E | 95 | 1028 |
| 16:00 | 20:00 | 17.6°C | 17.5°C | 0.54 | 3.3 | E | 95 | 1027 |
| 17:00 | 21:00 | 17.2°C | 17°C | 1.28 | 3.4 | E | 97 | 1027 |
| 18:00 | 22:00 | 16.8°C | 17°C | 1.1 | 2.7 | E | 97 | 1028 |
| 19:00 | 23:00 | 16.7°C | 16.6°C | 1.31 | 2.9 | E | 96 | 1028 |
| 20:00 | 00:00 | 16.5°C | 16.2°C | 1.24 | 3.3 | E | 96 | 1028 |
| 21:00 | 01:00 | 16.6°C | 15.9°C | 1.3 | 3.6 | E | 95 | 1028 |
| 22:00 | 02:00 | 16.5°C | 15.7°C | 1.35 | 3.9 | E | 96 | 1028 |
| 23:00 | 03:00 | 16.6°C | 15.9°C | 0.89 | 4.1 | E | 100 | 1028 |
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
- Frederick — 39.500°, -77.500°, ERA5 grid cell center, 12.2 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 24 September 2018 specifically — not a monthly average. See the Frederick 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 (2026-07-20). Historical climate data for Frederick, United States (39.50°N, 77.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Frederick, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 20, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Frederick, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 20, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Frederick, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-20},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.