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Canada · 1991–2020

Best time to visit
Promontory.

July leads for comfortable weather in Promontory: typically 23.8°C by day, 12°C at night, with 53 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high23.8°C

Typical low12°C

Rain in July53 mm

Comfort

July

July · August · September

88climate match

Beach

July

July · August · September

52climate match

Outdoors

September

September · June · July

82climate match

The weakest month is January, scoring 5 against July’s 88 — days reach only 5.7°C, 18° 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

55.7° / -0.4°

Feb

58.8° / 0.6°

Mar

510.9° / 2.2°

Apr

2714.4° / 4.4°

May

5218.1° / 7.6°

Jun

6120.1° / 10.1°

Jul

8823.8° / 12°

Aug

8624.2° / 11.9°

Sep

7021.1° / 9.3°

Oct

2514.5° / 5.8°

Nov

58.8° / 2.3°

Dec

55.3° / -0.1°

Monthly climate evidence for Promontory — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	5.7°C	-0.4°C	211 mm	18.4	8 h 38	5	Good coverage
February	8.8°C	0.6°C	111 mm	13.7	10 h 03	5	Good coverage
March	10.9°C	2.2°C	149 mm	17.4	11 h 43	5	Good coverage
April	14.4°C	4.4°C	116 mm	15	13 h 38	27	Good coverage
May	18.1°C	7.6°C	84 mm	12.7	15 h 16	52	Good coverage
June	20.1°C	10.1°C	93 mm	12.8	16 h 11	61	Good coverage
July	23.8°C	12°C	53 mm	6.8	15 h 49	88	Good coverage
August	24.2°C	11.9°C	67 mm	6.9	14 h 23	86	Good coverage
September	21.1°C	9.3°C	72 mm	8.8	12 h 32	70	Good coverage
October	14.5°C	5.8°C	149 mm	15.1	10 h 41	25	Good coverage
November	8.8°C	2.3°C	227 mm	19.5	9 h 03	5	Good coverage
December	5.3°C	-0.1°C	201 mm	18.6	8 h 14	5	Good coverage

Records at SARDIS, 1983–2010
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.0°C7 Jan 2002	-15.5°C30 Jan 1996	68 mm3 Jan 1984	388 mm2006 · driest 42 mm in 1985	25
February	19.0°C28 Feb 1988	-17.5°C1 Feb 1989	88 mm23 Feb 1986	227 mm1986 · driest 7 mm in 1993	25
March	24.0°C29 Mar 2004	-9.0°C6 Mar 2002	64 mm18 Mar 1997	292 mm2007 · driest 30 mm in 1992	25
April	30.5°C30 Apr 1998	-3.0°C2 Apr 2008	70 mm5 Apr 1988	178 mm1996 · driest 32 mm in 2004	25
May	34.5°C12 May 1993	-1.0°C6 May 2002	41 mm31 May 1997	187 mm1984 · driest 24 mm in 1995	24
June	34.0°C29 Jun 2008	3.0°C2 Jun 1999	40 mm17 Jun 2002	151 mm1997 · driest 34 mm in 1996	26
July	37.0°C11 Jul 2007	1.0°C11 Jul 2008	48 mm25 Jul 1995	101 mm1992 · driest 4 mm in 1985	25
August	34.5°C3 Aug 1993	1.5°C4 Aug 2008	72 mm20 Aug 2008	201 mm2008 · driest 5 mm in 1986	25
September	36.5°C3 Sep 1988	2.0°C14 Sep 1992	60 mm29 Sep 2005	145 mm2004 · driest 10 mm in 1989	25
October	28.0°C1 Oct 1988	-7.0°C31 Oct 1984	94 mm16 Oct 2003	334 mm2003 · driest 18 mm in 1987	25
November	18.5°C6 Nov 2006	-18.5°C27 Nov 1985	91 mm9 Nov 1990	444 mm2006 · driest 86 mm in 2000	24
December	16.0°C3 Dec 2007	-16.5°C29 Dec 1990	95 mm2 Dec 2007	297 mm1998 · driest 38 mm in 1985	25

Typical days per month at SARDIS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	15	7	4
February	0	0	12	4	2
March	0	0	8	5	2
April	<1	<1	2	3	<1
May	4	<1	<1	3	0
June	5	1	0	3	0
July	13	3	0	2	0
August	14	4	0	2	0
September	7	<1	0	2	0
October	<1	0	2	5	<1
November	0	0	8	7	2
December	0	0	16	7	4

How often, not how much — every day in SARDIS’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%	55%	22%	72%	3.6–8.2°C
February	0%	50%	17%	68%	5.7–10.0°C
March	1%	52%	15%	70%	9.2–12.5°C
April	12%	47%	11%	63%	12.8–15.6°C
May	26%	40%	10%	55%	15.5–20.1°C
June	43%	37%	9%	47%	18.5–22.6°C
July	70%	22%	5%	23%	22.1–25.8°C
August	73%	23%	6%	29%	22.6–25.8°C
September	51%	31%	8%	40%	18.5–23.2°C
October	10%	46%	18%	64%	13.1–16.3°C
November	0%	60%	24%	82%	6.7–11.1°C
December	0%	59%	23%	79%	2.0–6.3°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.

1984Each stripe is one year’s mean temperature against the 23-year average. Warmest: 1992. Coolest: 1985.2007

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 7669009
NOAA station: CA001107080 · SARDIS
Station distance: 3.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 49.10°, 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 SARDIS is what differs

Vedder Crossing→Ryder Lake→Cultus Lake→Baker Trails→Bell Acres→Slesse Park→

Or put two places side by side: Promontory vs Vedder Crossing

Best time to visitPromontory.

July

July

September

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Promontory.

The whole year,
without the guesswork.

Nearby, measured,
and named.