Canada · 1991–2020

Best time to visit
Gentilly.

August leads for comfortable weather in Gentilly: typically 24.9°C by day, 12.9°C at night, with 113 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high24.9°C

Typical low12.9°C

Rain in August113 mm

Comfort

August

August · June · July

75climate match

Beach

July

July · August · June

47climate match

Outdoors

September

September · May · June

74climate match

The weakest month is January, scoring 5 against August’s 75 — days reach only -7°C, 31° 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

5-7° / -17.5°

Feb

5-4.7° / -16°

Mar

51.3° / -9.2°

Apr

89.4° / -1°

May

5118.8° / 6°

Jun

7423.6° / 11.3°

Jul

7226° / 14°

Aug

7524.9° / 12.9°

Sep

5619.9° / 8.3°

Oct

1912.1° / 2.5°

Nov

54.2° / -3.5°

Dec

5-3° / -11°

Monthly climate evidence for Gentilly — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-7°C	-17.5°C	70 mm	11.5	8 h 58	5	Strong coverage
February	-4.7°C	-16°C	54 mm	8.9	10 h 15	5	Strong coverage
March	1.3°C	-9.2°C	68 mm	10.2	11 h 45	5	Strong coverage
April	9.4°C	-1°C	94 mm	10.3	13 h 29	8	Strong coverage
May	18.8°C	6°C	91 mm	11.9	14 h 58	51	Strong coverage
June	23.6°C	11.3°C	107 mm	12.4	15 h 47	74	Strong coverage
July	26°C	14°C	116 mm	12.4	15 h 27	72	Strong coverage
August	24.9°C	12.9°C	113 mm	11.2	14 h 10	75	Strong coverage
September	19.9°C	8.3°C	109 mm	11.4	12 h 29	56	Strong coverage
October	12.1°C	2.5°C	113 mm	12.2	10 h 49	19	Strong coverage
November	4.2°C	-3.5°C	86 mm	10.9	9 h 21	5	Strong coverage
December	-3°C	-11°C	85 mm	11.9	8 h 36	5	Strong coverage

What has changed

Gentilly runs +1.0°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

+0.7

Feb

0.0

Mar

+0.3

Apr

-0.2

May

+1.4

Jun

+1.0

Jul

+1.0

Aug

+1.4

Sep

+2.0

Oct

+2.1

Nov

+0.6

Dec

+2.0

August daytime highs, 2011–2021. Last recorded: 27.5°C.

Records at ST NARCISSE, 1973–2022
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	11.0°C19 Jan 1996	-41.0°C18 Jan 1982	40 mm25 Jan 2010	117 mm1999 · driest 13 mm in 1981	48
February	10.5°C27 Feb 2000	-36.0°C7 Feb 1993	36 mm20 Feb 1996	107 mm2019 · driest 3 mm in 1978	46
March	19.4°C21 Mar 2012	-31.0°C1 Mar 1992	43 mm28 Mar 2021	149 mm1998 · driest 13 mm in 1977	48
April	32.0°C27 Apr 1990	-18.0°C5 Apr 1995	66 mm9 Apr 1980	184 mm2005 · driest 7 mm in 2004	46
May	35.5°C25 May 2010	-6.7°C2 May 1974	41 mm20 May 1986	226 mm1983 · driest 21 mm in 1988	47
June	35.0°C15 Jun 2001	-1.7°C10 Jun 1978	66 mm7 Jun 1999	229 mm1994 · driest 30 mm in 2020	49
July	35.7°C10 Jul 2020	2.2°C5 Jul 1979	70 mm17 Jul 1992	217 mm2008 · driest 25 mm in 1989	47
August	34.4°C1 Aug 1975	1.0°C21 Aug 1982	82 mm4 Aug 2020	250 mm2011 · driest 22 mm in 2002	47
September	33.5°C9 Sep 2002	-6.0°C29 Sep 1980	102 mm9 Sep 2004	212 mm2010 · driest 50 mm in 2006	46
October	26.1°C23 Oct 1979	-9.4°C28 Oct 1974	65 mm15 Oct 2004	209 mm2006 · driest 28 mm in 1994	45
November	21.5°C3 Nov 1999	-24.0°C24 Nov 1989	54 mm8 Nov 1996	178 mm1983 · driest 24 mm in 1973	47
December	13.6°C1 Dec 2020	-35.0°C27 Dec 1984	49 mm11 Dec 2003	190 mm2003 · driest 1 mm in 1992	47

Typical days per month at ST NARCISSE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	2	12
February	0	0	27	2	10
March	0	0	28	2	8
April	<1	0	18	4	3
May	5	<1	3	3	<1
June	12	3	0	3	0
July	19	4	0	4	0
August	16	2	0	4	0
September	4	<1	1	3	0
October	<1	0	10	3	<1
November	0	0	23	3	5
December	0	0	29	3	11

The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 84); on 2011–2025 it is July (83). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in ST NARCISSE’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%	35%	6%	45%	-10.4–-4.3°C
February	0%	31%	6%	38%	-7.8–-2.1°C
March	0%	31%	7%	40%	-1.0–3.3°C
April	4%	33%	10%	44%	7.0–11.8°C
May	29%	37%	10%	51%	15.8–20.9°C
June	51%	41%	12%	57%	21.4–25.0°C
July	60%	38%	12%	53%	24.2–27.6°C
August	59%	36%	12%	49%	22.7–26.0°C
September	30%	38%	11%	54%	16.9–21.7°C
October	4%	38%	11%	54%	9.5–13.9°C
November	<1%	36%	10%	50%	1.3–6.5°C
December	0%	37%	8%	52%	-6.3–-1.0°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.

1974Each stripe is one year’s mean temperature against the 38-year average. Warmest: 2010. Coolest: 1976.2021

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5960304
NOAA station: CA007017585 · ST NARCISSE
Station distance: 19.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 26 usable years
Daylight: Calculated from latitude 46.40°, 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 ST NARCISSE is what differs

Saint-Narcisse→Sainte-Geneviève-de-Batiscan→Champlain→Picardie→Saint-Luc-de-Vincennes→Saint-Stanislas→

Or put two places side by side: Gentilly vs Saint-Narcisse

Best time to visitGentilly.