Canada · 1991–2020

Best time to visit
Stony Plain.

August leads for comfortable weather in Stony Plain: typically 21.9°C by day, 10.6°C at night, with 57 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high21.9°C

Typical low10.6°C

Rain in August57 mm

Comfort

August

August · July · June

77climate match

Beach

August

August · July · June

40climate match

Outdoors

August

August · June · September

83climate match

The weakest month is January, scoring 5 against August’s 77 — days reach only -5.4°C, 29° 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

5-5.4° / -14.1°

Feb

5-2.8° / -12°

Mar

51.6° / -7.8°

Apr

2310° / -0.8°

May

5217° / 5.1°

Jun

6320.3° / 9.4°

Jul

7422.8° / 11.8°

Aug

7721.9° / 10.6°

Sep

5717.1° / 5.9°

Oct

239.5° / 0°

Nov

50.5° / -7.1°

Dec

5-4.5° / -12.5°

Monthly climate evidence for Stony Plain — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-5.4°C	-14.1°C	21 mm	5.4	7 h 59	5	Strong coverage
February	-2.8°C	-12°C	14 mm	3.9	9 h 42	5	Strong coverage
March	1.6°C	-7.8°C	18 mm	4.8	11 h 40	5	Strong coverage
April	10°C	-0.8°C	31 mm	5.5	13 h 54	23	Strong coverage
May	17°C	5.1°C	54 mm	7.7	15 h 52	52	Strong coverage
June	20.3°C	9.4°C	86 mm	11.3	17 h 00	63	Strong coverage
July	22.8°C	11.8°C	94 mm	11.8	16 h 33	74	Strong coverage
August	21.9°C	10.6°C	57 mm	8.6	14 h 48	77	Strong coverage
September	17.1°C	5.9°C	39 mm	7.1	12 h 36	57	Strong coverage
October	9.5°C	0°C	23 mm	5.1	10 h 27	23	Strong coverage
November	0.5°C	-7.1°C	21 mm	5.6	8 h 30	5	Strong coverage
December	-4.5°C	-12.5°C	15 mm	4.7	7 h 29	5	Strong coverage

What has changed

Stony Plain runs +1.5°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

+4.2

Feb

+0.8

Mar

+0.6

Apr

0.0

May

+1.5

Jun

+1.2

Jul

+1.7

Aug

+2.0

Sep

+2.3

Oct

0.0

Nov

+1.2

Dec

+2.1

August daytime highs, 2011–2023. Last recorded: 23.5°C.

Records at EDMONTON STONY PLAIN, 1966–2024
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	13.5°C30 Jan 1993	-41.0°C13 Jan 2024	20 mm26 Jan 1991	74 mm1982 · driest 1 mm in 2001	58
February	16.5°C16 Feb 2017	-39.0°C2 Feb 1989	16 mm25 Feb 2024	51 mm1979 · driest 0 mm in 1998	58
March	22.0°C30 Mar 2004	-34.0°C2 Mar 2014	20 mm13 Mar 1974	53 mm1982 · driest 0 mm in 2007	59
April	28.9°C25 Apr 1977	-24.0°C3 Apr 1982	40 mm23 Apr 1990	89 mm2017 · driest 2 mm in 1984	59
May	31.5°C12 May 1993	-7.0°C3 May 2002	44 mm19 May 1989	167 mm1977 · driest 9 mm in 1983	58
June	36.5°C30 Jun 2021	0.0°C9 Jun 1967	71 mm18 Jun 2023	193 mm1973 · driest 17 mm in 1982	58
July	38.5°C1 Jul 2021	2.5°C19 Jul 1980	95 mm15 Jul 2012	216 mm2012 · driest 17 mm in 2021	58
August	35.0°C5 Aug 1998	-0.6°C19 Aug 1973	80 mm22 Aug 2016	166 mm1975 · driest 12 mm in 1971	58
September	33.9°C1 Sep 1967	-6.7°C30 Sep 1974	51 mm6 Sep 1984	146 mm1978 · driest 1 mm in 2013	58
October	29.0°C2 Oct 1987	-25.5°C31 Oct 1984	32 mm21 Oct 1991	87 mm1991 · driest 0 mm in 1977	58
November	21.7°C8 Nov 2016	-36.5°C26 Nov 1985	19 mm28 Nov 1978	67 mm1978 · driest 1 mm in 1974	58
December	17.5°C27 Dec 1999	-40.0°C9 Dec 1977	30 mm9 Dec 1979	56 mm1980 · driest 1 mm in 2023	58

Typical days per month at EDMONTON STONY PLAIN, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	<1	10
February	0	0	27	<1	7
March	0	0	28	<1	7
April	<1	0	17	<1	5
May	3	<1	3	2	1
June	4	<1	0	3	0
July	10	1	0	3	0
August	9	<1	<1	1	0
September	3	<1	3	1	<1
October	<1	0	15	<1	3
November	0	0	27	<1	8
December	0	0	30	0	9

The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 75); on 2011–2025 it is August (87). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in EDMONTON STONY PLAIN’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%	19%	<1%	21%	-12.6–-0.9°C
February	0%	17%	<1%	16%	-9.3–1.1°C
March	<1%	17%	<1%	14%	-2.7–5.9°C
April	7%	17%	2%	13%	5.5–13.7°C
May	27%	24%	5%	27%	14.9–19.7°C
June	41%	38%	9%	54%	18.9–22.2°C
July	53%	37%	10%	49%	21.1–24.4°C
August	53%	29%	7%	34%	18.4–23.9°C
September	29%	24%	4%	25%	13.5–20.1°C
October	7%	16%	2%	11%	6.2–12.7°C
November	<1%	18%	1%	20%	-4.8–4.6°C
December	0%	18%	<1%	18%	-11.6–0.2°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.

1967Each stripe is one year’s mean temperature against the 57-year average. Warmest: 2023. Coolest: 1996.2023

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6157536
NOAA station: CA00301222F · EDMONTON STONY PLAIN
Station distance: 7.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 53.53°, 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 EDMONTON STONY PLAIN is what differs

Duffield→Keephills→Alberta Beach→Beach Corner→Brightbank→Carvel→

Or put two places side by side: Stony Plain vs Duffield

Best time to visitStony Plain.

August

August

August

The whole year,without the guesswork.

Stony Plain runs +1.5°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Stony Plain.

The whole year,
without the guesswork.

Stony Plain runs +1.5°C
on the 1961–1990 baseline.

Nearby, measured,
and named.