Coatesville/Chester Cnty
Weather station · 40.0°N 75.9°W · 200 m above sea level
ICAO KMQSStation data since 1983
Record high
29.4°C
in 1988
Record low
1.7°C
in 1983
Average high
22.2°C
all years on record
14.9°C short of the record for 23 September
Today’s high 14.5°C against 29.4°C in 1988. A reading that beats it is flagged here automatically, once a second cycle confirms it.
All-time record high
37.8°C
- Date
- Saturday, 16 July 1988
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- Coatesville/Chester Cnty, United States
- Position
- 39.98°N 75.86°W · 200 m
Highest highest in available records since 1983. Source: NOAA GHCN-Daily.
All-time record low
−25.6°C
- Date
- Sunday, 22 January 1984
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- Coatesville/Chester Cnty, United States
- Position
- 39.98°N 75.86°W · 200 m
Highest and lowest lowest in available records since 1983. Source: NOAA GHCN-Daily.
Where Coatesville/Chester Cnty is
39.98°N 75.86°W
Records by month
Jan
21.7°
−25.6°
Feb
23.3°
−20.6°
Mar
31.1°
−20.0°
Apr
33.3°
−6.1°
May
34.4°
−1.7°
Jun
35.6°
2.2°
Jul
37.8°
7.2°
Aug
37.8°
3.9°
Sep
35.6°
Recent days
| Day | High | At | Low | At |
|---|---|---|---|---|
| 2026-09-23 | 14.5°C | 02:35 UTC | 12.4°C | 07:55 UTC |
| 2026-09-22 | 15.9°C | 17:55 UTC | 13.8°C | 21:55 UTC |
Nearby stations
Data sources for this page
| Figure | Source | Type |
|---|---|---|
| Right now, today so far | NOAA Aviation Weather Center (METAR) and NOAA NWS WMO bulletins (SYNOP) | Measured, station |
| All-time, monthly and on-this-day records | NOAA NCEI Global Historical Climatology Network daily (GHCN-Daily), 1983 to 2007 | Measured, station |
| Nearby stations and distances | Computed from station positions in our own database | Calculated |
