Canada · 1991–2020

Best time to visit
Saint-Jérôme.

August leads for comfortable weather in Saint-Jérôme: typically 24.8°C by day, 13.6°C at night, with 91 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high24.8°C

Typical low13.6°C

Rain in August91 mm

Comfort

August

August · July · June

81climate match

Beach

July

July · August · June

51climate match

Outdoors

September

September · May · August

78climate match

The weakest month is January, scoring 5 against August’s 81 — days reach only -6°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

5-6° / -15.9°

Feb

5-4° / -14.6°

Mar

52.1° / -8.3°

Apr

1210.2° / -0.4°

May

5318.8° / 6.7°

Jun

7323.5° / 12.1°

Jul

7625.9° / 14.7°

Aug

8124.8° / 13.6°

Sep

6020° / 9°

Oct

2112.1° / 2.9°

Nov

54.5° / -3.1°

Dec

5-2.3° / -10.2°

Monthly climate evidence for Saint-Jérôme — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-6°C	-15.9°C	74 mm	11.6	9 h 02	5	Strong coverage
February	-4°C	-14.6°C	51 mm	8.6	10 h 17	5	Strong coverage
March	2.1°C	-8.3°C	61 mm	8.3	11 h 46	5	Strong coverage
April	10.2°C	-0.4°C	91 mm	10	13 h 28	12	Strong coverage
May	18.8°C	6.7°C	94 mm	10.2	14 h 54	53	Strong coverage
June	23.5°C	12.1°C	119 mm	12.2	15 h 42	73	Strong coverage
July	25.9°C	14.7°C	108 mm	11.4	15 h 23	76	Strong coverage
August	24.8°C	13.6°C	91 mm	9.8	14 h 08	81	Strong coverage
September	20°C	9°C	105 mm	10.1	12 h 29	60	Strong coverage
October	12.1°C	2.9°C	109 mm	11.5	10 h 51	21	Strong coverage
November	4.5°C	-3.1°C	89 mm	10.5	9 h 24	5	Strong coverage
December	-2.3°C	-10.2°C	80 mm	11.2	8 h 41	5	Strong coverage

What has changed

Saint-Jérôme runs +1.3°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

+1.1

Feb

+1.1

Mar

+1.0

Apr

+0.1

May

+2.0

Jun

+0.5

Jul

+0.8

Aug

+1.3

Sep

+1.9

Oct

+2.3

Nov

+0.3

Dec

+2.6

August daytime highs, 2012–2023. Last recorded: 23.5°C.

Records at ST JEROME, 1932–2024
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	11.5°C8 Jan 2008	-41.7°C15 Jan 1957	53 mm25 Jan 1938	144 mm2006 · driest 10 mm in 2016	91
February	12.0°C20 Feb 1994	-41.1°C9 Feb 1934	45 mm1 Feb 2008	189 mm1981 · driest 1 mm in 1978	88
March	25.5°C21 Mar 2012	-32.8°C4 Mar 1943	45 mm23 Mar 1968	182 mm1936 · driest 5 mm in 1996	90
April	31.0°C27 Apr 2009	-21.7°C7 Apr 1943	77 mm17 Apr 1967	175 mm1993 · driest 5 mm in 2004	89
May	34.7°C27 May 2020	-8.3°C7 May 1966	61 mm16 May 2014	200 mm1952 · driest 10 mm in 2020	89
June	35.6°C28 Jun 1933	-1.7°C2 Jun 1945	89 mm22 Jun 1981	252 mm2014 · driest 10 mm in 2011	91
July	35.6°C26 Jul 1955	2.8°C15 Jul 1946	66 mm9 Jul 1949	196 mm1992 · driest 27 mm in 1934	90
August	35.6°C14 Aug 1944	0.0°C31 Aug 1976	74 mm24 Aug 1933	221 mm1959 · driest 6 mm in 1957	91
September	33.0°C10 Sep 2002	-5.6°C30 Sep 1941	90 mm9 Sep 2004	212 mm1975 · driest 15 mm in 1941	89
October	28.9°C4 Oct 2023	-11.7°C22 Oct 1940	80 mm5 Oct 1979	196 mm1995 · driest 12 mm in 1947	89
November	22.2°C8 Nov 1938	-26.1°C25 Nov 1933	48 mm19 Nov 1948	180 mm1989 · driest 1 mm in 2012	90
December	20.0°C7 Dec 1951	-40.0°C20 Dec 1942	61 mm30 Dec 1942	185 mm1942 · driest 9 mm in 1992	89

Typical days per month at ST JEROME, 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	26	2	7
March	0	0	26	2	5
April	<1	0	15	3	1
May	4	<1	3	3	0
June	11	3	0	3	0
July	18	3	0	4	0
August	15	2	0	3	0
September	4	<1	<1	3	0
October	<1	0	9	3	<1
November	0	0	21	3	3
December	0	0	27	2	8

The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 86); on 2011–2025 it is August (89). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in ST JEROME’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%	9%	48%	-9.7–-2.6°C
February	0%	32%	7%	40%	-7.6–-1.5°C
March	<1%	29%	7%	39%	-1.2–4.3°C
April	5%	32%	10%	40%	7.5–12.6°C
May	29%	33%	10%	41%	15.7–21.3°C
June	55%	36%	11%	44%	21.7–24.9°C
July	65%	33%	11%	40%	24.2–27.5°C
August	64%	31%	10%	35%	22.5–26.5°C
September	33%	32%	11%	41%	17.3–21.8°C
October	7%	33%	10%	43%	10.1–14.8°C
November	<1%	37%	11%	53%	1.4–6.6°C
December	0%	38%	10%	55%	-6.8–-0.6°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.

1933Each stripe is one year’s mean temperature against the 70-year average. Warmest: 2010. Coolest: 1943.2023

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6138501
NOAA station: CA007037400 · ST JEROME
Station distance: 4.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 25 usable years
Daylight: Calculated from latitude 45.78°, 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 JEROME is what differs

Prévost→Saint-Sauveur→Saint-Sauveur-des-Monts→Lac-Alouette→Terrasse-des-Pins→Morin-Heights→

Or put two places side by side: Saint-Jérôme vs Prévost

Best time to visitSaint-Jérôme.