St Catharines/Niagara Arpt
Weather station · 43.2°N 79.2°W · 96 m above sea level
ICAO CYSNStation data since 1971
Record high
27.6°C
Mon 23 Sep 1985
Record low
0.6°C
Mon 23 Sep 1974
Average high
18.3°C
all years on record
17.6°C short of the record for 23 September
Today’s high 10.0°C against 27.6°C in 1985. A reading that beats it is flagged here automatically, once a second cycle confirms it.
All-time record high
37.4°C
- Date
- Thursday, 7 July 1988
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- St Catharines/Niagara Arpt, Canada
- Position
- 43.19°N 79.18°W · 96 m
Highest highest in available records since 1971. Source: NOAA GHCN-Daily.
All-time record low
−25.7°C
- Date
- Sunday, 18 February 1979
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- St Catharines/Niagara Arpt, Canada
- Position
- 43.19°N 79.18°W · 96 m
Highest and lowest lowest in available records since 1971. Source: NOAA GHCN-Daily.
Where St Catharines/Niagara Arpt is
z6
43.19°N 79.18°W
St Catharines/Niagara Arpt
Ground · satellite
Land surface temperature for 2026-09-22, from NASA GIBS. This is the temperature of the ground seen from orbit, not the air, and it is never ranked against air readings. Cloud hides the ground, so gaps are unread rather than guessed.
View more on Google Maps- 1
St Catharines/Niagara Arpt has dropped below freezing on 3486 nights since 1971. The desert remembers every one of them.
From our dataNights with a minimum below 0°C since 1971. - 2
Today is colder than 60% of all days recorded here since 1971.
From our dataToday's high against every day recorded at this station since 1971. - 3
Right now Davis Lgb 46 Aws is 79.2°C colder than St Catharines/Niagara Arpt. Same planet. Same afternoon.
From our dataBoth readings are live and ranked on this site now. - 4
The coldest night St Catharines/Niagara Arpt has ever recorded, −25.7°C, would pass for a warm spell at Davis Lgb 46 Aws, which is −69.2°C right now.
From our dataThis station's record low against the current live reading at Davis Lgb 46 Aws.
New facts every day. Report an error.
Every year on record
1971 to 2000
Annual average · °C
Trend over 29 years with data: +0.32 °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
18.5°
−23.8°
Sat 14 Jan 1995
Feb
19.4°
−25.7°
Fri 21 Feb 1997
Mar
26.7°
−21.1°
Tue 31 Mar 1998
Apr
30.3°
−9.1°
Wed 25 Apr 1990
May
32.4°
−1.7°
Fri 29 May 1987
Jun
35.0°
1.7°
Mon 19 Jun 1995
Jul
37.4°
8.0°
Thu 7 Jul 1988
Recent days
| Day | High | At | Low | At |
|---|---|---|---|---|
| 2026-09-23 | 10.0°C | 00:00 UTC | 8.0°C | 11:00 UTC |
| 2026-09-22 | 16.0°C | 15:00 UTC | 13.0°C | 23:00 UTC |
Nearby stations
- Port WellerCanada6.7 km
- Port Weller, Ont.Canada7.2 km
- VINELAND STATION RCS, ONTCanada16.9 km
- VinelandCanada18.2 km
- Niagara Falls IntlUnited States21.5 km
- WELLAND-PELHAM, ONTCanada27.2 km
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), 1971 to 2000 | Measured, station |
| Nearby stations and distances | Computed from station positions in our own database | Calculated |