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Canada · 1991–2020

Best time to visit
Stillwater Lake.

August leads for comfortable weather in Stillwater Lake: typically 24.3°C by day, 13.5°C at night, with 75 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high24.3°C

Typical low13.5°C

Rain in August75 mm

Comfort

August

August · July · September

87climate match

Beach

August

August · July · June

54climate match

Outdoors

June

June · September · August

81climate match

The weakest month is January, scoring 5 against August’s 87 — days reach only 0.3°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

50.3° / -10.1°

Feb

51.2° / -10.1°

Mar

54.2° / -5.8°

Apr

89.6° / -0.4°

May

3615.3° / 4.5°

Jun

6520.4° / 9.3°

Jul

8524° / 13.4°

Aug

8724.3° / 13.5°

Sep

6620.9° / 9.7°

Oct

3314.9° / 4.3°

Nov

59° / 0.1°

Dec

53.9° / -5.1°

Monthly climate evidence for Stillwater Lake — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 36 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	0.3°C	-10.1°C	124 mm	9	3.1°C	9 h 09	5	Good coverage
February	1.2°C	-10.1°C	103 mm	8	1.3°C	10 h 21	5	Good coverage
March	4.2°C	-5.8°C	121 mm	8.6	1.1°C	11 h 46	5	Good coverage
April	9.6°C	-0.4°C	112 mm	9.9	2.4°C	13 h 24	8	Strong coverage
May	15.3°C	4.5°C	109 mm	10.3	5.4°C	14 h 47	36	Strong coverage
June	20.4°C	9.3°C	93 mm	8.3	9.7°C	15 h 33	65	Strong coverage
July	24°C	13.4°C	87 mm	8.3	14.2°C	15 h 15	85	Strong coverage
August	24.3°C	13.5°C	75 mm	6.9	16.6°C	14 h 03	87	Strong coverage
September	20.9°C	9.7°C	106 mm	7.8	16.2°C	12 h 28	66	Strong coverage
October	14.9°C	4.3°C	118 mm	9.3	13.3°C	10 h 53	33	Good coverage
November	9°C	0.1°C	143 mm	9.6	9.5°C	9 h 30	5	Good coverage
December	3.9°C	-5.1°C	132 mm	8.5	6.0°C	8 h 49	5	Strong coverage

What has changed

Stillwater Lake runs +1.7°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

+1.6

Feb

+1.9

Mar

+0.9

Apr

+1.3

May

+1.3

Jun

+0.9

Jul

+2.1

Aug

+2.1

Sep

+2.2

Oct

+2.3

Nov

+1.6

Dec

+1.8

August daytime highs, 2011–2020. Last recorded: 24.8°C.

Records at ST MARGARET'S BAY, 1922–2021
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	15.0°C14 Jan 2006	-32.8°C19 Jan 1925	113 mm9 Jan 1956	380 mm1956 · driest 25 mm in 1970	93
February	17.0°C20 Feb 1994	-31.7°C22 Feb 1928	79 mm25 Feb 1965	246 mm1960 · driest 24 mm in 1987	91
March	22.8°C29 Mar 1945	-27.8°C6 Mar 1948	70 mm23 Mar 1972	258 mm1994 · driest 41 mm in 1995	93
April	27.2°C11 Apr 1945	-22.2°C2 Apr 1923	107 mm2 Apr 2020	237 mm2020 · driest 21 mm in 1966	95
May	32.0°C22 May 1992	-7.2°C3 May 1945	114 mm1 May 1947	263 mm1947 · driest 9 mm in 1944	95
June	36.0°C27 Jun 2001	-1.7°C3 Jun 1927	85 mm8 Jun 2013	326 mm1985 · driest 24 mm in 1991	94
July	34.0°C6 Jul 2003	1.1°C3 Jul 1933	118 mm22 Jul 1964	252 mm1964 · driest 13 mm in 1997	94
August	34.4°C16 Aug 1928	0.0°C31 Aug 1965	125 mm15 Aug 1971	223 mm1971 · driest 10 mm in 1947	94
September	34.0°C1 Sep 2000	-3.9°C28 Sep 1965	140 mm7 Sep 2019	235 mm1929 · driest 8 mm in 2000	94
October	30.6°C14 Oct 1930	-10.0°C28 Oct 1936	83 mm24 Oct 1961	266 mm1933 · driest 7 mm in 1947	93
November	23.9°C1 Nov 1956	-16.1°C28 Nov 1932	80 mm22 Nov 2015	296 mm1959 · driest 19 mm in 1931	93
December	17.0°C1 Dec 2020	-28.0°C30 Dec 1989	115 mm10 Dec 2014	314 mm2014 · driest 35 mm in 1995	94

Typical days per month at ST MARGARET'S BAY, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	4	4
February	0	0	26	3	4
March	0	0	27	4	2
April	0	0	18	4	<1
May	<1	<1	5	4	0
June	4	<1	<1	3	0
July	13	1	0	3	0
August	14	<1	0	3	0
September	4	<1	<1	3	0
October	<1	0	9	4	0
November	0	0	17	5	<1
December	0	0	24	5	2

How often, not how much — every day in ST MARGARET'S BAY’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%	34%	15%	44%	-2.9–2.6°C
February	0%	32%	14%	43%	-2.3–2.9°C
March	0%	31%	14%	39%	2.0–5.7°C
April	<1%	33%	13%	41%	7.3–10.7°C
May	12%	33%	12%	42%	13.5–16.6°C
June	40%	30%	11%	33%	18.3–21.3°C
July	68%	26%	10%	26%	21.4–24.7°C
August	70%	25%	10%	24%	21.5–24.8°C
September	39%	26%	10%	27%	18.1–21.3°C
October	5%	29%	13%	35%	12.8–15.8°C
November	<1%	35%	15%	49%	6.7–10.2°C
December	0%	34%	16%	44%	-0.4–5.3°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.

1923Each stripe is one year’s mean temperature against the 87-year average. Warmest: 2020. Coolest: 1923.2020

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6156750
NOAA station: CA008204800 · ST MARGARET'S BAY
Station distance: 5.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 44.70°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 36 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 ST MARGARET'S BAY is what differs

Timberlea→Hubley→Boutiliers Point→Hubbards→Black Point→West Dover→

Or put two places side by side: Stillwater Lake vs Timberlea

Best time to visitStillwater Lake.

August

August

June

The whole year,without the guesswork.

Stillwater Lake runs +1.7°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Stillwater Lake.

The whole year,
without the guesswork.

Stillwater Lake runs +1.7°C
on the 1961–1990 baseline.

Nearby, measured,
and named.