Canada · 1991–2020

Best time to visit
Saint-Laurent.

June leads for comfortable weather in Saint-Laurent: typically 23.9°C by day, 14.7°C at night, with 109 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high23.9°C

Typical low14.7°C

Rain in June109 mm

Comfort

June

June · August · September

81climate match

Beach

July

July · August · June

63climate match

Outdoors

May

May · September · June

76climate match

The weakest month is January, scoring 5 against June’s 81 — days reach only -4.1°C, 28° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

5-4.1° / -11.6°

Feb

5-2.5° / -10.3°

Mar

52.9° / -4.9°

Apr

1811.2° / 2.5°

May

5819.1° / 9.6°

Jun

8123.9° / 14.7°

Jul

7026.6° / 17.7°

Aug

7625.4° / 16.7°

Sep

7221.3° / 12.5°

Oct

3013.3° / 6°

Nov

56.2° / -0.2°

Dec

5-0.7° / -7°

Monthly climate evidence for Saint-Laurent — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-4.1°C	-11.6°C	86 mm	13.5	9 h 04	5	Good coverage
February	-2.5°C	-10.3°C	74 mm	12.1	10 h 18	5	Good coverage
March	2.9°C	-4.9°C	90 mm	13.1	11 h 46	5	Good coverage
April	11.2°C	2.5°C	102 mm	12	13 h 27	18	Good coverage
May	19.1°C	9.6°C	92 mm	12.2	14 h 52	58	Good coverage
June	23.9°C	14.7°C	109 mm	11.6	15 h 39	81	Good coverage
July	26.6°C	17.7°C	101 mm	11.6	15 h 21	70	Good coverage
August	25.4°C	16.7°C	109 mm	10	14 h 06	76	Strong coverage
September	21.3°C	12.5°C	91 mm	10	12 h 28	72	Strong coverage
October	13.3°C	6°C	113 mm	11.5	10 h 51	30	Strong coverage
November	6.2°C	-0.2°C	90 mm	12.2	9 h 26	5	Good coverage
December	-0.7°C	-7°C	113 mm	15	8 h 43	5	Good coverage

Records at MCTAVISH, 1994–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	12.7°C15 Jan 1995	-28.1°C14 Jan 2004	70 mm18 Jan 2006	165 mm2006 · driest 23 mm in 2003	31
February	14.8°C27 Feb 2024	-29.2°C4 Feb 2023	50 mm1 Feb 2008	127 mm2008 · driest 33 mm in 2024	31
March	25.9°C21 Mar 2012	-26.8°C3 Mar 2003	44 mm10 Mar 2011	149 mm2011 · driest 44 mm in 2006	30
April	30.1°C27 Apr 2009	-10.4°C5 Apr 2018	51 mm23 Apr 2006	188 mm2017 · driest 21 mm in 2001	30
May	35.9°C27 May 2020	-0.2°C10 May 2010	65 mm29 May 2012	154 mm2006 · driest 14 mm in 2021	29
June	35.0°C1 Jun 2023	4.9°C18 Jun 1999	85 mm28 Jun 1999	165 mm2022 · driest 32 mm in 2020	28
July	36.6°C2 Jul 2018	8.9°C2 Jul 2001	82 mm13 Jul 2023	265 mm2023 · driest 43 mm in 2001	29
August	35.4°C14 Aug 2002	9.2°C31 Aug 2017	95 mm31 Aug 2005	214 mm2020 · driest 21 mm in 2021	29
September	33.5°C5 Sep 2008	1.3°C28 Sep 2000	70 mm9 Sep 2004	223 mm1999 · driest 17 mm in 2023	30
October	29.9°C4 Oct 2023	-3.6°C30 Oct 2020	90 mm7 Oct 2023	261 mm2019 · driest 19 mm in 1994	30
November	24.4°C5 Nov 2022	-16.9°C22 Nov 2018	103 mm8 Nov 1996	177 mm1996 · driest 11 mm in 2012	29
December	17.0°C6 Dec 2001	-25.6°C28 Dec 2017	61 mm18 Dec 2023	187 mm2003 · driest 39 mm in 2002	29

Typical days per month at MCTAVISH, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	29	3
February	0	0	26	2
March	0	0	24	3
April	<1	0	7	3
May	5	<1	<1	3
June	13	3	0	4
July	21	5	0	3
August	18	2	0	4
September	7	1	0	3
October	<1	0	2	3
November	0	0	14	3
December	0	0	26	4

How often, not how much — every day in MCTAVISH’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	0%	43%	9%	62%	-7.4–-1.2°C
February	0%	42%	9%	64%	-5.4–0.3°C
March	<1%	41%	9%	59%	0.6–6.2°C
April	5%	39%	12%	55%	9.2–13.4°C
May	32%	37%	9%	52%	16.5–22.0°C
June	55%	38%	12%	51%	22.6–25.8°C
July	61%	37%	11%	50%	24.7–28.4°C
August	66%	32%	12%	39%	24.1–27.5°C
September	43%	32%	10%	46%	19.3–23.1°C
October	8%	36%	11%	51%	11.4–16.1°C
November	<1%	40%	10%	56%	3.8–8.7°C
December	0%	47%	12%	71%	-3.2–2.0°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1997Each stripe is one year’s mean temperature against the 26-year average. Warmest: 2021. Coolest: 2003.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6138610
NOAA station: CA007024745 · MCTAVISH
Station distance: 6.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude 45.50°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from MCTAVISH is what differs

Montréal→Rosemont–La Petite-Patrie→Villeray–Saint-Michel–Parc-Extension→Mercier–Hochelaga-Maisonneuve→Ahuntsic-Cartierville→Le Vieux-Longueuil→

Or put two places side by side: Saint-Laurent vs Montréal

Best time to visitSaint-Laurent.

June

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Saint-Laurent.

The whole year,
without the guesswork.

Nearby, measured,
and named.