St Charles/Smartt Arpt
Weather station · 38.9°N 90.4°W · 133 m above sea level
ICAO KSETStation data since 1997
Record high
34.4°C
in 2007
Record low
2.2°C
in 2012
Average high
25.8°C
all years on record
13.8°C short of the record for 23 September
Today’s high 20.6°C against 34.4°C in 2007. A reading that beats it is flagged here automatically, once a second cycle confirms it.
All-time record high
41.1°C
- Date
- Saturday, 7 July 2012
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- St Charles/Smartt Arpt, United States
- Position
- 38.93°N 90.43°W · 133 m
Highest highest in available records since 1997. Source: NOAA GHCN-Daily.
All-time record low
−25.0°C
- Date
- Tuesday, 5 January 1999
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- St Charles/Smartt Arpt, United States
- Position
- 38.93°N 90.43°W · 133 m
Highest and lowest lowest in available records since 1997. Source: NOAA GHCN-Daily.
Where St Charles/Smartt Arpt is
38.93°N 90.43°W
Every year on record
1997 to 2026
Annual average · °C
Trend over 27 years with data: +0.69 °C per decade
Source: NOAA GHCN-Daily. Years the station did not cover are left as gaps, never joined across. The dashed line is a least squares trend through the years that have data.
Records by month
Jan
23.3°
−25.0°
Feb
30.0°
−24.3°
Mar
35.0°
−16.6°
Apr
34.4°
−4.9°
May
35.0°
0.6°
Jun
40.6°
8.9°
Jul
41.1°
10.6°
Aug
39.4°
8.9°
Sep
38.9°
Recent days
| Day | High | At | Low | At |
|---|---|---|---|---|
| 2026-09-23 | 20.6°C | 00:54 UTC | 14.4°C | 07:54 UTC |
| 2026-09-22 | 22.8°C | 20:54 UTC | 18.9°C | 15:18 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), 1997 to 2026 | Measured, station |
| Nearby stations and distances | Computed from station positions in our own database | Calculated |
