Canada · 1991–2020

Best time to visit
Lacolle.

June leads for comfortable weather in Lacolle: typically 24.2°C by day, 13.1°C at night, with 106 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24.2°C

Typical low13.1°C

Rain in June106 mm

Comfort

June

June · August · July

78climate match

Beach

July

July · August · June

58climate match

Outdoors

September

September · May · June

78climate match

The weakest month is January, scoring 5 against June’s 78 — days reach only -3.7°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

5-3.7° / -12.9°

Feb

5-2.1° / -11.9°

Mar

53.4° / -6.1°

Apr

1811.6° / 1.1°

May

5619.5° / 7.9°

Jun

7824.2° / 13.1°

Jul

7426.6° / 15.5°

Aug

7525.8° / 14.3°

Sep

6921.5° / 10.2°

Oct

2613.6° / 4.1°

Nov

56.4° / -1.5°

Dec

50.2° / -7.6°

Monthly climate evidence for Lacolle — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-3.7°C	-12.9°C	61 mm	11.8	9 h 07	5	Good coverage
February	-2.1°C	-11.9°C	50 mm	10	10 h 20	5	Good coverage
March	3.4°C	-6.1°C	60 mm	10.1	11 h 46	5	Strong coverage
April	11.6°C	1.1°C	93 mm	11.4	13 h 25	18	Strong coverage
May	19.5°C	7.9°C	97 mm	11.2	14 h 50	56	Strong coverage
June	24.2°C	13.1°C	106 mm	11.7	15 h 36	78	Strong coverage
July	26.6°C	15.5°C	101 mm	11.1	15 h 18	74	Strong coverage
August	25.8°C	14.3°C	115 mm	10.4	14 h 05	75	Strong coverage
September	21.5°C	10.2°C	90 mm	9.6	12 h 28	69	Strong coverage
October	13.6°C	4.1°C	119 mm	12.3	10 h 52	26	Strong coverage
November	6.4°C	-1.5°C	83 mm	11.5	9 h 28	5	Good coverage
December	0.2°C	-7.6°C	81 mm	12.5	8 h 46	5	Good coverage

What has changed

Lacolle runs +1.4°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

+1.7

Feb

+1.3

Mar

+0.9

Apr

+0.2

May

+1.4

Jun

+0.8

Jul

+0.9

Aug

+1.0

Sep

+2.6

Oct

+2.4

Nov

+0.6

Dec

+2.8

June daytime highs, 2011–2023. Last recorded: 23.8°C.

Records at ST BERNARD DE LACOLLE, 1973–2024
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	14.5°C6 Jan 2007	-34.0°C18 Jan 1982	40 mm19 Jan 1996	124 mm1987 · driest 7 mm in 1980	45
February	15.1°C27 Feb 2024	-32.4°C4 Feb 2023	30 mm7 Feb 1983	94 mm2022 · driest 6 mm in 1978	44
March	25.8°C21 Mar 2012	-28.0°C7 Mar 1989	65 mm14 Mar 2017	116 mm2017 · driest 11 mm in 1983	47
April	32.3°C27 Apr 2009	-14.5°C5 Apr 1995	43 mm7 Apr 2022	169 mm1983 · driest 8 mm in 2004	49
May	34.4°C9 May 1979	-4.0°C4 May 1986	50 mm3 May 2011	205 mm2011 · driest 20 mm in 2021	48
June	35.0°C1 Jun 2023	-1.0°C9 Jun 1980	83 mm11 Jun 2002	198 mm2002 · driest 30 mm in 1979	49
July	35.6°C8 Jul 1973	4.0°C2 Jul 1978	96 mm29 Jul 2009	251 mm2023 · driest 25 mm in 2021	51
August	37.8°C1 Aug 1975	1.0°C29 Aug 1986	136 mm28 Aug 2011	212 mm1988 · driest 16 mm in 2002	47
September	35.5°C9 Sep 2002	-4.0°C29 Sep 1980	85 mm4 Sep 2012	177 mm1999 · driest 25 mm in 2014	47
October	28.6°C4 Oct 2023	-8.3°C31 Oct 2020	79 mm7 Oct 2023	223 mm2005 · driest 27 mm in 2004	45
November	23.5°C7 Nov 2020	-21.0°C24 Nov 1989	107 mm8 Nov 1996	166 mm1996 · driest 6 mm in 1980	46
December	18.1°C24 Dec 2015	-32.0°C30 Dec 1989	64 mm14 Dec 2003	188 mm2003 · driest 3 mm in 1994	45

Typical days per month at ST BERNARD DE LACOLLE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	2	11
February	0	0	24	1	8
March	0	0	24	2	6
April	<1	<1	13	3	2
May	5	1	1	3	<1
June	13	3	0	4	0
July	21	5	0	4	0
August	18	3	0	3	0
September	6	<1	<1	3	0
October	<1	0	7	4	<1
November	0	0	18	2	4
December	0	0	26	3	9

How often, not how much — every day in ST BERNARD DE LACOLLE’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%	36%	5%	49%	-7.8–-0.7°C
February	0%	31%	5%	38%	-6.0–1.4°C
March	<1%	30%	6%	43%	0.5–6.0°C
April	8%	37%	10%	50%	9.3–14.0°C
May	34%	36%	9%	51%	16.6–22.1°C
June	55%	38%	11%	51%	22.3–25.9°C
July	62%	37%	12%	53%	24.8–28.5°C
August	62%	35%	12%	41%	23.7–26.8°C
September	40%	33%	10%	48%	18.3–22.8°C
October	7%	39%	11%	54%	11.1–15.7°C
November	<1%	37%	8%	51%	3.5–9.1°C
December	0%	37%	7%	54%	-3.7–2.7°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.

1974Each stripe is one year’s mean temperature against the 34-year average. Warmest: 2012. Coolest: 1989.2023

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6035592
NOAA station: CA007026916 · ST BERNARD DE LACOLLE
Station distance: 1.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude 45.08°, 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 ST BERNARD DE LACOLLE is what differs

Napierville→Rouses Point→Noyan→Champlain→Perry Mills→Blackpool→

Or put two places side by side: Lacolle vs Napierville

Best time to visitLacolle.