Canada · 1991–2020

Best time to visit
Citadel.

July leads for comfortable weather in Citadel: typically 23.1°C by day, 10.1°C at night, with 53 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high23.1°C

Typical low10.1°C

Rain in July53 mm

Comfort

July

July · August · September

81climate match

Beach

July

July · August · September

44climate match

Outdoors

August

August · September · July

84climate match

The weakest month is January, scoring 5 against July’s 81 — days reach only -0.8°C, 25° 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

5-0.8° / -10.9°

Feb

5-0.1° / -10.7°

Mar

54° / -6.9°

Apr

2310.1° / -1.5°

May

4715.8° / 3.4°

Jun

5319.2° / 7.4°

Jul

8123.1° / 10.1°

Aug

8122.6° / 9.5°

Sep

5917.6° / 5.2°

Oct

2810.6° / -0.2°

Nov

53.4° / -6.2°

Dec

5-0.6° / -9.9°

Monthly climate evidence for Citadel — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-0.8°C	-10.9°C	7 mm	2.1	8 h 21	5	Good coverage
February	-0.1°C	-10.7°C	8 mm	2.5	9 h 54	5	Good coverage
March	4°C	-6.9°C	14 mm	3.2	11 h 42	5	Good coverage
April	10.1°C	-1.5°C	23 mm	4.4	13 h 45	23	Good coverage
May	15.8°C	3.4°C	51 mm	6.4	15 h 31	47	Good coverage
June	19.2°C	7.4°C	111 mm	10.1	16 h 32	53	Good coverage
July	23.1°C	10.1°C	53 mm	8	16 h 08	81	Good coverage
August	22.6°C	9.5°C	47 mm	6.7	14 h 34	81	Good coverage
September	17.6°C	5.2°C	33 mm	5	12 h 34	59	Good coverage
October	10.6°C	-0.2°C	14 mm	3.1	10 h 35	28	Good coverage
November	3.4°C	-6.2°C	10 mm	2.6	8 h 49	5	Good coverage
December	-0.6°C	-9.9°C	10 mm	2.3	7 h 55	5	Strong coverage

Records at COP UPPER, 1993–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.8°C7 Jan 2003	-38.1°C12 Jan 2024	6 mm27 Jan 2023	17 mm2014 · driest 0 mm in 2000	31
February	17.2°C20 Feb 1995	-32.6°C7 Feb 1994	9 mm7 Feb 2011	26 mm2017 · driest 0 mm in 2016	30
March	23.6°C30 Mar 2004	-30.7°C1 Mar 2011	24 mm10 Mar 2008	37 mm2024 · driest 0 mm in 1999	31
April	27.6°C19 Apr 2016	-19.2°C2 Apr 2002	18 mm12 Apr 2012	122 mm2008 · driest 0 mm in 2001	31
May	30.9°C29 May 2025	-8.3°C3 May 2002	42 mm24 May 2013	152 mm2008 · driest 0 mm in 2000	30
June	36.2°C29 Jun 2021	-1.5°C8 Jun 1999	180 mm6 Jun 2007	376 mm2005 · driest 0 mm in 2001	31
July	36.0°C1 Jul 2021	1.3°C16 Jul 1999	49 mm14 Jul 1999	173 mm1999 · driest 0 mm in 2000	31
August	34.5°C14 Aug 2021	0.9°C2 Aug 2002	40 mm6 Aug 2016	130 mm2009 · driest 0 mm in 2017	31
September	32.8°C3 Sep 1994	-8.0°C22 Sep 2000	65 mm10 Sep 2005	98 mm2005 · driest 2 mm in 1994	32
October	26.6°C1 Oct 2008	-19.1°C31 Oct 2003	27 mm2 Oct 2018	41 mm2018 · driest 0 mm in 1994	32
November	21.3°C4 Nov 2010	-31.4°C21 Nov 1996	16 mm19 Nov 2019	39 mm2014 · driest 0 mm in 1999	32
December	17.6°C27 Dec 1999	-35.0°C23 Dec 1996	16 mm23 Dec 2020	42 mm2020 · driest 0 mm in 2000	32

Typical days per month at COP UPPER, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	0	4
February	0	0	25	0	3
March	0	0	26	<1	6
April	<1	0	18	<1	<1
May	2	0	7	2	<1
June	3	<1	<1	3	0
July	10	2	0	1	0
August	10	2	0	1	0
September	4	<1	3	<1	<1
October	<1	0	15	<1	<1
November	0	0	24	<1	4
December	0	0	28	<1	3

How often, not how much — every day in COP UPPER’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%	7%	0%	2%	-4.8–2.6°C
February	0%	11%	0%	11%	-6.1–4.3°C
March	<1%	11%	<1%	6%	-0.8–8.8°C
April	7%	15%	2%	18%	7.5–12.5°C
May	28%	21%	6%	23%	13.4–19.7°C
June	41%	33%	11%	47%	17.4–22.5°C
July	63%	27%	4%	25%	21.6–26.2°C
August	65%	22%	5%	20%	19.9–25.8°C
September	41%	16%	2%	17%	15.0–21.5°C
October	8%	11%	<1%	8%	7.5–13.5°C
November	<1%	9%	<1%	4%	-0.4–7.6°C
December	0%	8%	<1%	4%	-6.4–4.0°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.

1996Each stripe is one year’s mean temperature against the 25-year average. Warmest: 2023. Coolest: 1996.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5922833
NOAA station: CA003031875 · COP UPPER
Station distance: 7.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 51.15°, 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 COP UPPER is what differs

Evergreen→Tuscany→Edgemont→Signal Hill→Varsity→Royal Oak→

Or put two places side by side: Citadel vs Evergreen

Best time to visitCitadel.

July

July

August

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Citadel.

The whole year,
without the guesswork.

Nearby, measured,
and named.