Canada · 1991–2020

Best time to visit
Chedderville.

July leads for comfortable weather in Chedderville: typically 21.8°C by day, 8°C at night, with 89 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high21.8°C

Typical low8°C

Rain in July89 mm

Comfort

July

July · August · June

65climate match

Beach

July

July · August · January

24climate match

Outdoors

August

August · July · September

79climate match

The weakest month is January, scoring 5 against July’s 65 — days reach only -4.7°C, 29° below the 24°C the score treats as ideal, and nights drop to -18°C.

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

5-4.7° / -18°

Feb

5-2.1° / -16.6°

Mar

51.3° / -11.7°

Apr

159.1° / -4.2°

May

4015.8° / 1.1°

Jun

4718.8° / 5.4°

Jul

6521.8° / 8°

Aug

6521° / 6.5°

Sep

4716.6° / 1.7°

Oct

179.7° / -4°

Nov

51.2° / -11.3°

Dec

5-4.2° / -17°

Monthly climate evidence for Chedderville — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-4.7°C	-18°C	14 mm	4	8 h 12	5	Good coverage
February	-2.1°C	-16.6°C	14 mm	4.5	9 h 49	5	Good coverage
March	1.3°C	-11.7°C	18 mm	5.1	11 h 41	5	Good coverage
April	9.1°C	-4.2°C	21 mm	4.7	13 h 49	15	Good coverage
May	15.8°C	1.1°C	58 mm	7.9	15 h 40	40	Good coverage
June	18.8°C	5.4°C	108 mm	12.8	16 h 44	47	Strong coverage
July	21.8°C	8°C	89 mm	11.5	16 h 18	65	Good coverage
August	21°C	6.5°C	64 mm	9.2	14 h 40	65	Strong coverage
September	16.6°C	1.7°C	46 mm	6.8	12 h 35	47	Strong coverage
October	9.7°C	-4°C	22 mm	5.4	10 h 32	17	Good coverage
November	1.2°C	-11.3°C	19 mm	6	8 h 41	5	Good coverage
December	-4.2°C	-17°C	16 mm	4.8	7 h 44	5	Good coverage

Records at ROCKY MTN HOUSE (AUT), 1992–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	15.7°C7 Jan 2003	-45.3°C25 Jan 1997	8 mm3 Jan 2014	31 mm2015 · driest 1 mm in 2010	33
February	15.6°C24 Feb 1997	-40.4°C7 Feb 2021	14 mm4 Feb 2005	39 mm2003 · driest 2 mm in 2004	32
March	22.5°C30 Mar 2004	-40.0°C9 Mar 2003	12 mm5 Mar 2012	38 mm2018 · driest 0 mm in 1998	32
April	26.5°C28 Apr 2018	-25.4°C1 Apr 2018	17 mm6 Apr 2006	43 mm2022 · driest 0 mm in 2002	34
May	30.3°C17 May 2006	-9.2°C7 May 2014	51 mm24 May 2013	104 mm2020 · driest 0 mm in 2000	31
June	35.4°C30 Jun 2021	-4.5°C2 Jun 2009	67 mm14 Jun 2022	199 mm2022 · driest 42 mm in 2009	31
July	34.9°C1 Jul 2021	-2.9°C1 Jul 2009	50 mm1 Jul 2022	188 mm2000 · driest 23 mm in 2003	32
August	34.3°C10 Aug 2018	-2.1°C21 Aug 2013	48 mm3 Aug 1996	135 mm2004 · driest 18 mm in 2013	30
September	32.8°C23 Sep 2009	-8.1°C27 Sep 2013	42 mm9 Sep 2005	108 mm2006 · driest 3 mm in 2022	30
October	27.0°C1 Oct 2008	-27.3°C31 Oct 2003	24 mm1 Oct 2016	55 mm2004 · driest 2 mm in 2007	31
November	20.8°C8 Nov 2016	-37.8°C23 Nov 2010	12 mm27 Nov 2014	44 mm2005 · driest 0 mm in 1995	31
December	17.0°C27 Dec 1999	-43.3°C29 Dec 1996	10 mm4 Dec 2004	41 mm2008 · driest 0 mm in 2010	32

Typical days per month at ROCKY MTN HOUSE (AUT), 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	0	1
February	0	0	27	<1	2
March	0	0	30	<1	3
April	<1	0	25	<1	1
May	2	0	13	2	<1
June	2	<1	2	3	0
July	7	<1	<1	3	0
August	6	<1	<1	2	0
September	2	<1	10	1	<1
October	<1	0	26	<1	2
November	0	0	29	<1	3
December	0	0	29	<1	2

How often, not how much — every day in ROCKY MTN HOUSE (AUT)’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%	12%	0%	7%	-9.0–-0.8°C
February	0%	17%	<1%	16%	-6.9–0.9°C
March	<1%	15%	<1%	11%	-2.8–5.1°C
April	6%	16%	1%	15%	6.4–12.3°C
May	25%	27%	5%	30%	13.3–19.0°C
June	32%	43%	10%	62%	17.3–21.4°C
July	52%	37%	9%	47%	20.4–24.3°C
August	53%	30%	7%	33%	19.0–23.5°C
September	33%	22%	4%	21%	14.0–20.3°C
October	7%	18%	<1%	18%	6.2–13.1°C
November	<1%	19%	<1%	16%	-2.4–5.9°C
December	0%	16%	<1%	13%	-9.7–1.1°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 28-year average. Warmest: 2025. Coolest: 1996.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5920571
NOAA station: CA003015523 · ROCKY MTN HOUSE (AUT)
Station distance: 28.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 52.17°, 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 ROCKY MTN HOUSE (AUT) is what differs

Rocky Mountain House→Congresbury→Crimson Lake→Dovercourt→Garth→Lochearn→

Or put two places side by side: Chedderville vs Rocky Mountain House

Best time to visitChedderville.

July

July

August

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Chedderville.

The whole year,
without the guesswork.

Nearby, measured,
and named.