Canada · 1991–2020

Best time to visit
LaSalle.

September leads for comfortable weather in LaSalle: typically 23°C by day, 12.9°C at night, with 88 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high23°C

Typical low12.9°C

Rain in September88 mm

Comfort

September

September · June · August

81climate match

Beach

August

August · July · June

72climate match

Outdoors

May

May · September · October

78climate match

The weakest month is January, scoring 5 against September’s 81 — days reach only -0.2°C, 24° 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

5-0.2° / -7.1°

Feb

51.1° / -6.3°

Mar

56.7° / -2.2°

Apr

3214.1° / 3.7°

May

6520.7° / 9.9°

Jun

8025.9° / 15.7°

Jul

6728.1° / 18°

Aug

7726.9° / 17.3°

Sep

8123° / 12.9°

Oct

5016.1° / 7.1°

Nov

158.8° / 1.5°

Dec

52.4° / -3.8°

Monthly climate evidence for LaSalle — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 21 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-0.2°C	-7.1°C	72 mm	11.6	1.1°C	9 h 24	5	Good coverage
February	1.1°C	-6.3°C	62 mm	8.7	0.4°C	10 h 30	5	Good coverage
March	6.7°C	-2.2°C	70 mm	9.1	1.3°C	11 h 48	5	Good coverage
April	14.1°C	3.7°C	91 mm	10.5	5.0°C	13 h 18	32	Good coverage
May	20.7°C	9.9°C	99 mm	10.1	11.3°C	14 h 33	65	Good coverage
June	25.9°C	15.7°C	82 mm	8.9	17.7°C	15 h 15	80	Good coverage
July	28.1°C	18°C	100 mm	9.1	22.1°C	14 h 59	67	Good coverage
August	26.9°C	17.3°C	73 mm	7.4	22.9°C	13 h 53	77	Good coverage
September	23°C	12.9°C	88 mm	7.7	20.1°C	12 h 26	81	Good coverage
October	16.1°C	7.1°C	72 mm	8.5	13.9°C	10 h 59	50	Good coverage
November	8.8°C	1.5°C	75 mm	9	8.4°C	9 h 44	15	Good coverage
December	2.4°C	-3.8°C	73 mm	10.3	4.1°C	9 h 06	5	Good coverage

Records at WINDSOR A, 1940–2014
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.8°C25 Jan 1950	-29.1°C19 Jan 1994	43 mm4 Jan 1993	134 mm1950 · driest 18 mm in 1981	74
February	20.4°C26 Feb 2000	-23.4°C7 Feb 1982	71 mm22 Feb 1990	153 mm1990 · driest 6 mm in 1969	74
March	28.4°C22 Mar 2012	-19.7°C3 Mar 2003	47 mm1 Mar 2007	144 mm1954 · driest 9 mm in 1958	74
April	31.1°C25 Apr 1990	-9.5°C7 Apr 1982	95 mm20 Apr 2000	173 mm1947 · driest 15 mm in 1946	74
May	34.0°C31 May 1988	-2.8°C10 May 1966	58 mm27 May 2014	195 mm1943 · driest 28 mm in 1954	74
June	40.2°C25 Jun 1988	2.8°C5 Jun 1945	78 mm25 Jun 1968	170 mm2008 · driest 13 mm in 1952	74
July	38.3°C14 Jul 1995	5.6°C11 Jul 1945	82 mm29 Jul 1983	262 mm2013 · driest 25 mm in 1991	74
August	37.7°C17 Aug 1988	5.2°C29 Aug 1982	79 mm13 Aug 1994	198 mm1975 · driest 8 mm in 2010	75
September	37.2°C2 Sep 1953	-1.1°C29 Sep 1942	89 mm30 Sep 1981	246 mm1981 · driest 15 mm in 1960	75
October	32.2°C6 Oct 1963	-5.0°C21 Oct 1974	72 mm11 Oct 1949	163 mm1954 · driest 6 mm in 1944	74
November	26.1°C1 Nov 1950	-15.6°C30 Nov 1958	75 mm29 Nov 2011	189 mm2011 · driest 17 mm in 2012	74
December	19.6°C6 Dec 1998	-23.4°C30 Dec 1983	73 mm21 Dec 1967	158 mm1967 · driest 14 mm in 1943	74

Typical days per month at WINDSOR A, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	2	13
February	0	0	25	2	10
March	<1	0	21	2	7
April	1	<1	5	3	2
May	7	2	0	3	0
June	18	6	0	3	0
July	25	9	0	3	0
August	22	6	0	2	0
September	10	2	0	3	0
October	2	<1	<1	2	<1
November	0	0	12	2	3
December	0	0	24	2	10

How often, not how much — every day in WINDSOR A’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%	31%	5%	37%	-4.0–2.7°C
February	0%	30%	6%	37%	-2.6–3.5°C
March	3%	31%	7%	42%	2.7–8.9°C
April	13%	34%	10%	41%	11.0–16.2°C
May	37%	30%	10%	39%	17.5–23.2°C
June	63%	29%	10%	33%	23.6–27.5°C
July	74%	26%	9%	28%	26.3–29.8°C
August	75%	24%	9%	26%	25.2–28.4°C
September	54%	26%	9%	28%	21.1–24.7°C
October	20%	25%	7%	27%	14.2–18.7°C
November	2%	31%	7%	38%	5.9–10.8°C
December	0%	33%	7%	43%	-1.4–4.8°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.

1941Each stripe is one year’s mean temperature against the 73-year average. Warmest: 1998. Coolest: 1963.2013

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6050177
NOAA station: CA006139525 · WINDSOR A
Station distance: 10.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude 42.24°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 21 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 WINDSOR A is what differs

Windsor→Bridgeview→Elmstead→Fairplay→Fontainebleau→Maidstone→

Or put two places side by side: LaSalle vs Windsor

Best time to visitLaSalle.

September

August

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
LaSalle.

The whole year,
without the guesswork.

Nearby, measured,
and named.