Canada · 1991–2020

Best time to visit
L'Assomption.

June leads for comfortable weather in L'Assomption: typically 24.3°C by day, 12.4°C at night, with 101 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24.3°C

Typical low12.4°C

Rain in June101 mm

Comfort

June

June · August · July

78climate match

Beach

July

July · August · June

57climate match

Outdoors

September

September · May · June

79climate match

The weakest month is January, scoring 5 against June’s 78 — days reach only -5.8°C, 30° 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

5-5.8° / -15.9°

Feb

5-4° / -14.8°

Mar

51.8° / -8.3°

Apr

1310.8° / 0.1°

May

5519.2° / 7.1°

Jun

7824.3° / 12.4°

Jul

7626.5° / 14.8°

Aug

7725.5° / 13.7°

Sep

6620.9° / 9.1°

Oct

2613° / 3.1°

Nov

55.3° / -2.8°

Dec

5-1.9° / -10.2°

Monthly climate evidence for L'Assomption — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-5.8°C	-15.9°C	90 mm	13.2	9 h 02	5	Strong coverage
February	-4°C	-14.8°C	70 mm	11	10 h 17	5	Strong coverage
March	1.8°C	-8.3°C	77 mm	11.8	11 h 46	5	Strong coverage
April	10.8°C	0.1°C	97 mm	12.2	13 h 28	13	Strong coverage
May	19.2°C	7.1°C	89 mm	11.1	14 h 54	55	Strong coverage
June	24.3°C	12.4°C	101 mm	10.5	15 h 42	78	Strong coverage
July	26.5°C	14.8°C	96 mm	10.6	15 h 23	76	Strong coverage
August	25.5°C	13.7°C	103 mm	9.7	14 h 08	77	Strong coverage
September	20.9°C	9.1°C	85 mm	9.8	12 h 29	66	Strong coverage
October	13°C	3.1°C	104 mm	10.7	10 h 50	26	Strong coverage
November	5.3°C	-2.8°C	85 mm	11.5	9 h 24	5	Strong coverage
December	-1.9°C	-10.2°C	103 mm	13.3	8 h 41	5	Strong coverage

What has changed

L'Assomption 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

+1.5

Mar

+1.2

Apr

+0.5

May

+1.5

Jun

+1.0

Jul

+1.1

Aug

+1.4

Sep

+2.4

Oct

+1.8

Nov

+0.7

Dec

+2.5

June daytime highs, 2011–2025. Last recorded: 25.6°C.

Records at L'ASSOMPTION, 1930–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	12.8°C7 Jan 1932	-43.3°C15 Jan 1957	71 mm18 Jan 2006	191 mm1999 · driest 16 mm in 1981	96
February	14.1°C27 Feb 2024	-43.3°C17 Feb 1934	46 mm1 Feb 2008	172 mm1960 · driest 14 mm in 1980	96
March	26.0°C21 Mar 2012	-40.6°C4 Mar 1938	42 mm10 Mar 2011	151 mm1932 · driest 12 mm in 1967	96
April	31.0°C27 Apr 1990	-19.4°C4 Apr 1954	55 mm23 Apr 2006	200 mm1983 · driest 14 mm in 2020	96
May	36.2°C27 May 2020	-7.2°C7 May 1966	79 mm20 May 2016	177 mm1945 · driest 15 mm in 2021	95
June	36.1°C27 Jun 1941	-1.7°C2 Jun 1945	103 mm19 Jun 1978	236 mm2014 · driest 28 mm in 1995	95
July	37.2°C17 Jul 1953	3.3°C30 Jul 1956	65 mm22 Jul 1935	187 mm2023 · driest 25 mm in 1982	95
August	37.2°C14 Aug 1944	0.6°C31 Aug 1965	84 mm19 Aug 2006	197 mm2016 · driest 14 mm in 2019	93
September	36.7°C11 Sep 1931	-5.5°C29 Sep 1980	96 mm9 Sep 2004	172 mm1975 · driest 20 mm in 1961	93
October	29.9°C5 Oct 2025	-12.2°C26 Oct 1933	88 mm7 Oct 2023	179 mm2023 · driest 16 mm in 1994	94
November	23.7°C5 Nov 2022	-25.0°C29 Nov 1940	72 mm8 Nov 1996	246 mm1983 · driest 10 mm in 2012	94
December	16.4°C24 Dec 2015	-42.8°C29 Dec 1933	55 mm1 Dec 2010	184 mm2012 · driest 19 mm in 1935	94

Typical days per month at L'ASSOMPTION, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	3	3
February	0	0	27	2	2
March	0	0	27	2	2
April	<1	0	15	3	<1
May	5	1	1	3	0
June	13	3	0	3	0
July	21	5	0	3	0
August	18	3	0	3	0
September	6	<1	<1	3	0
October	<1	0	9	3	<1
November	0	0	20	3	<1
December	0	0	29	4	2

The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 86); on 2011–2025 it is June (84). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in L'ASSOMPTION’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%	37%	8%	50%	-9.7–-2.5°C
February	0%	36%	8%	49%	-7.4–-2.0°C
March	<1%	33%	8%	44%	-1.2–4.3°C
April	5%	34%	10%	43%	8.3–13.4°C
May	32%	32%	9%	38%	16.5–21.5°C
June	57%	34%	10%	45%	22.3–25.6°C
July	66%	32%	10%	40%	25.0–28.1°C
August	66%	30%	10%	36%	23.4–27.3°C
September	38%	30%	10%	38%	18.2–22.5°C
October	8%	31%	9%	40%	10.7–15.9°C
November	<1%	36%	10%	49%	2.4–7.5°C
December	0%	39%	10%	54%	-6.8–0.2°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.

1930Each stripe is one year’s mean temperature against the 93-year average. Warmest: 2023. Coolest: 1934.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6050263
NOAA station: CA007014160 · L'ASSOMPTION
Station distance: 0.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 45.82°, 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 L'ASSOMPTION is what differs

Lavaltrie→L'Épiphanie→Croissant-du-Bourg→Domaine-des-Deux-Lacs→Domaine-des-Fleurs→Domaine-Ouellet→

Or put two places side by side: L'Assomption vs Lavaltrie

Best time to visitL'Assomption.