Waterloo Intl

Weather station · 43.5°N 80.4°W · 312 m above sea level

ICAO CYKFWMO 71368Station data since 2010

Right now11.0°C08:00 UTC · 35 min agoSource: NOAA METAR

Today so far11.0°/8.0°High at 08:00 UTC · low at 03:00 UTCSource: NOAA METAR and SYNOP

All-time record high35.7°CThursday, 21 July 2011 · highest in available records since 2010Source: NOAA GHCN-Daily

All-time record low−34.1°CMonday, 16 February 2015 · lowest in available records since 2010Source: NOAA GHCN-Daily

On this day · 23 September

Record high

30.5°C

in 2017

Record low

1.0°C

in 2022

Average high

20.4°C

all years on record

Record watch

19.5°C short of the record for 23 September

Today’s high 11.0°C against 30.5°C in 2017. A reading that beats it is flagged here automatically, once a second cycle confirms it.

All-time record high

35.7°C

Date: Thursday, 21 July 2011
Time of day: Not recorded. The daily archive stores the day, not the hour.
Location: Waterloo Intl, Canada
Position: 43.46°N 80.39°W · 312 m

Highest highest in available records since 2010. Source: NOAA GHCN-Daily.

All-time record low

−34.1°C

Date: Monday, 16 February 2015
Time of day: Not recorded. The daily archive stores the day, not the hour.
Location: Waterloo Intl, Canada
Position: 43.46°N 80.39°W · 312 m

Highest and lowest lowest in available records since 2010. Source: NOAA GHCN-Daily.

Where Waterloo Intl is

43.46°N 80.39°W

Every year on record

2010 to 2026

Annual average · °C

Trend over 14 years with data: +0.38 °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

13.5°

−29.2°

Feb

16.8°

−34.1°

Mar

26.5°

−25.2°

Apr

28.1°

−15.1°

May

33.1°

−4.4°

Jun

34.1°

0.9°

Jul

35.7°

5.5°

Aug

33.6°

3.8°

Sep

34.5°

Recent days

Daily highest and lowest air temperature at Waterloo Intl, most recent first.
Day	High	At	Low	At
2026-09-23	11.0°C	08:00 UTC	8.0°C	03:00 UTC
2026-09-22	16.0°C	18:00 UTC	13.0°C	15:03 UTC

Nearby stations

Data sources for this page

Where each figure on this page comes from.
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), 2010 to 2026	Measured, station
Nearby stations and distances	Computed from station positions in our own database	Calculated