Canada · 1991–2020

Best time to visit
Saint-Lazare.

August leads for comfortable weather in Saint-Lazare: typically 25.2°C by day, 14.1°C at night, with 93 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high25.2°C

Typical low14.1°C

Rain in August93 mm

Comfort

August

August · June · July

80climate match

Beach

July

July · August · June

54climate match

Outdoors

September

September · May · June

78climate match

The weakest month is January, scoring 5 against August’s 80 — days reach only -5.2°C, 29° 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

5-5.2° / -14.3°

Feb

5-4° / -13.5°

Mar

52.2° / -7.2°

Apr

1710.9° / 1.1°

May

5519.3° / 7.6°

Jun

7924° / 13.1°

Jul

7526.2° / 15.2°

Aug

8025.2° / 14.1°

Sep

6420.8° / 9.6°

Oct

2513.2° / 3.6°

Nov

55.8° / -1.9°

Dec

5-1.2° / -8.7°

Monthly climate evidence for Saint-Lazare — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-5.2°C	-14.3°C	65 mm	11.3	9 h 05	5	Strong coverage
February	-4°C	-13.5°C	61 mm	10	10 h 18	5	Strong coverage
March	2.2°C	-7.2°C	65 mm	9.4	11 h 46	5	Strong coverage
April	10.9°C	1.1°C	89 mm	10.9	13 h 26	17	Strong coverage
May	19.3°C	7.6°C	93 mm	11.6	14 h 52	55	Strong coverage
June	24°C	13.1°C	103 mm	11.7	15 h 39	79	Strong coverage
July	26.2°C	15.2°C	105 mm	11.3	15 h 20	75	Strong coverage
August	25.2°C	14.1°C	93 mm	10.4	14 h 06	80	Strong coverage
September	20.8°C	9.6°C	96 mm	10.5	12 h 28	64	Strong coverage
October	13.2°C	3.6°C	105 mm	12.4	10 h 52	25	Strong coverage
November	5.8°C	-1.9°C	74 mm	11.6	9 h 26	5	Strong coverage
December	-1.2°C	-8.7°C	74 mm	11.8	8 h 44	5	Strong coverage

What has changed

Saint-Lazare runs +2.0°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+2.3

Feb

+1.9

Mar

+1.8

Apr

+0.8

May

+2.5

Jun

+1.8

Jul

+1.5

Aug

+1.4

Sep

+2.3

Oct

+2.4

Nov

+1.3

Dec

+3.6

August daytime highs, 2011–2023. Last recorded: 25.0°C.

Records at COTEAU DU LAC, 1966–2024
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	12.5°C13 Jan 2005	-36.0°C4 Jan 1981	39 mm12 Jan 2018	133 mm2006 · driest 15 mm in 1981	55
February	16.0°C27 Feb 2024	-37.2°C23 Feb 1972	38 mm12 Feb 2019	114 mm1971 · driest 5 mm in 1978	54
March	26.0°C21 Mar 2012	-30.0°C9 Mar 1984	49 mm14 Mar 2017	104 mm2011 · driest 0 mm in 1983	57
April	30.5°C27 Apr 2009	-14.5°C5 Apr 1995	50 mm6 Apr 2017	169 mm1993 · driest 6 mm in 2004	56
May	36.4°C27 May 2020	-4.0°C7 May 1981	48 mm19 May 2006	220 mm1974 · driest 8 mm in 2021	55
June	34.6°C1 Jun 2023	-1.0°C3 Jun 1986	66 mm11 Jun 2002	230 mm1998 · driest 38 mm in 1979	56
July	35.8°C2 Jul 2018	4.4°C12 Jul 1974	73 mm20 Jul 2007	266 mm2023 · driest 33 mm in 1978	57
August	35.0°C1 Aug 1975	0.6°C31 Aug 1976	83 mm25 Aug 1982	197 mm2016 · driest 21 mm in 2021	57
September	34.0°C9 Sep 2002	-6.0°C29 Sep 1980	60 mm16 Sep 1999	169 mm1999 · driest 19 mm in 1984	54
October	30.5°C4 Oct 2023	-10.0°C31 Oct 1992	68 mm21 Oct 1995	230 mm2019 · driest 29 mm in 1982	55
November	24.6°C5 Nov 2022	-21.7°C22 Nov 1972	73 mm8 Nov 1996	146 mm1983 · driest 12 mm in 2019	56
December	17.5°C5 Dec 2001	-33.0°C25 Dec 1980	38 mm16 Dec 1974	145 mm2022 · driest 3 mm in 1992	56

Typical days per month at COTEAU DU LAC, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	2	9
February	0	0	25	2	7
March	0	0	25	2	5
April	<1	0	13	3	1
May	5	<1	1	3	0
June	13	3	0	3	0
July	20	4	0	3	0
August	18	2	0	3	0
September	6	<1	<1	3	0
October	<1	0	8	3	<1
November	0	0	20	2	3
December	0	0	28	2	8

The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 87); on 2011–2025 it is June (85). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in COTEAU DU LAC’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%	33%	6%	46%	-10.0–-1.9°C
February	0%	31%	7%	44%	-7.5–-0.7°C
March	<1%	28%	7%	37%	-0.9–4.7°C
April	7%	34%	10%	44%	8.7–13.5°C
May	30%	35%	9%	47%	16.4–21.8°C
June	55%	37%	11%	52%	21.9–25.5°C
July	63%	35%	10%	48%	24.5–27.5°C
August	63%	33%	10%	39%	23.2–26.7°C
September	38%	33%	11%	45%	18.1–22.5°C
October	8%	37%	9%	51%	10.5–15.2°C
November	<1%	38%	9%	56%	2.7–8.3°C
December	0%	36%	8%	51%	-5.8–1.3°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.

1968Each stripe is one year’s mean temperature against the 43-year average. Warmest: 2023. Coolest: 1978.2023

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6138617
NOAA station: CA007011947 · COTEAU DU LAC
Station distance: 9.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 26 usable years
Daylight: Calculated from latitude 45.40°, 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 COTEAU DU LAC is what differs

Les Coteaux→Coteau-du-Lac→Saint-Zotique→Cedarbrook→Coteau-Landing→Coteau-Station→

Or put two places side by side: Saint-Lazare vs Les Coteaux

Best time to visitSaint-Lazare.