Canada · 1991–2020

Best time to visit
Richmond Hill.

June leads for comfortable weather in Richmond Hill: typically 24.6°C by day, 13.6°C at night, with 82 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24.6°C

Typical low13.6°C

Rain in June82 mm

Comfort

June

June · August · July

84climate match

Beach

July

July · August · June

63climate match

Outdoors

May

May · September · June

78climate match

The weakest month is January, scoring 5 against June’s 84 — days reach only -2.1°C, 26° 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

5-2.1° / -9.8°

Feb

5-0.5° / -9°

Mar

54.9° / -4.4°

Apr

2412° / 1.6°

May

5919.4° / 8°

Jun

8424.6° / 13.6°

Jul

7327° / 16.2°

Aug

8326° / 15.4°

Sep

7221.4° / 11°

Oct

3914° / 4.9°

Nov

57° / -0.3°

Dec

51.3° / -5.5°

Monthly climate evidence for Richmond Hill — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 28 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-2.1°C	-9.8°C	69 mm	12.5	3.7°C	9 h 15	5	Good coverage
February	-0.5°C	-9°C	57 mm	9.7	2.9°C	10 h 24	5	Good coverage
March	4.9°C	-4.4°C	57 mm	9.4	2.9°C	11 h 47	5	Good coverage
April	12°C	1.6°C	78 mm	10.2	3.8°C	13 h 22	24	Good coverage
May	19.4°C	8°C	85 mm	9.9	7.3°C	14 h 42	59	Good coverage
June	24.6°C	13.6°C	82 mm	8.8	14.9°C	15 h 27	84	Good coverage
July	27°C	16.2°C	98 mm	9.3	19.9°C	15 h 09	73	Good coverage
August	26°C	15.4°C	74 mm	7.7	21.2°C	14 h	83	Good coverage
September	21.4°C	11°C	88 mm	8.9	19.1°C	12 h 27	72	Good coverage
October	14°C	4.9°C	69 mm	9.1	13.1°C	10 h 55	39	Good coverage
November	7°C	-0.3°C	79 mm	10.2	7.5°C	9 h 35	5	Good coverage
December	1.3°C	-5.5°C	64 mm	10.4	4.9°C	8 h 55	5	Good coverage

Records at RICHMOND HILL, 1959–2014
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	14.5°C13 Jan 2005	-32.5°C4 Jan 1981	46 mm14 Jan 1968	126 mm1995 · driest 8 mm in 1961	51
February	14.5°C23 Feb 1984	-29.0°C17 Feb 1979	38 mm13 Feb 1984	122 mm1985 · driest 19 mm in 1994	51
March	27.5°C22 Mar 2012	-27.0°C3 Mar 2003	35 mm4 Mar 1974	123 mm1973 · driest 16 mm in 1962	50
April	31.0°C25 Apr 1990	-15.0°C7 Apr 1972	39 mm20 Apr 2000	122 mm1991 · driest 30 mm in 1997	49
May	34.5°C29 May 2006	-5.6°C7 May 1966	64 mm12 May 2000	153 mm2000 · driest 28 mm in 2005	49
June	35.0°C19 Jun 1995	0.6°C5 Jun 1964	50 mm22 Jun 1985	177 mm1982 · driest 8 mm in 1963	51
July	37.0°C7 Jul 1988	4.4°C30 Jul 1968	88 mm26 Jul 1971	210 mm1996 · driest 20 mm in 1978	51
August	37.0°C1 Aug 2006	3.0°C29 Aug 1982	93 mm15 Aug 1986	263 mm1986 · driest 24 mm in 1994	51
September	34.4°C3 Sep 1973	-3.3°C27 Sep 1965	88 mm10 Sep 1986	228 mm1986 · driest 9 mm in 1960	51
October	29.4°C2 Oct 1971	-7.8°C29 Oct 1965	54 mm5 Oct 1995	139 mm1995 · driest 11 mm in 1961	50
November	23.3°C3 Nov 1961	-15.5°C21 Nov 1987	50 mm2 Nov 1999	153 mm1985 · driest 16 mm in 2012	51
December	20.0°C3 Dec 1982	-30.0°C25 Dec 1980	40 mm10 Dec 1992	120 mm1977 · driest 16 mm in 1960	51

Typical days per month at RICHMOND HILL, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	2	16
February	0	0	27	2	12
March	<1	0	25	2	9
April	<1	<1	12	2	3
May	6	<1	<1	3	<1
June	15	5	0	3	0
July	22	7	0	3	0
August	20	4	0	3	0
September	8	1	<1	3	0
October	1	0	5	2	<1
November	0	0	17	3	5
December	0	0	26	2	10

How often, not how much — every day in RICHMOND HILL’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%	37%	5%	52%	-6.0–0.4°C
February	0%	33%	6%	42%	-4.2–1.8°C
March	1%	31%	6%	42%	0.8–6.8°C
April	8%	33%	7%	43%	8.8–13.7°C
May	31%	31%	8%	39%	15.5–21.8°C
June	59%	29%	9%	34%	22.4–25.5°C
July	72%	26%	8%	29%	24.7–28.8°C
August	69%	28%	9%	30%	23.6–27.3°C
September	43%	29%	9%	34%	18.7–22.7°C
October	12%	29%	7%	38%	11.7–15.3°C
November	<1%	35%	8%	48%	4.6–8.7°C
December	0%	38%	7%	53%	-3.0–3.1°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.

1960Each stripe is one year’s mean temperature against the 47-year average. Warmest: 2012. Coolest: 1972.2013

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 6122091
NOAA station: CA006157012 · RICHMOND HILL
Station distance: 1.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 18 usable years
Daylight: Calculated from latitude 43.87°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 28 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 RICHMOND HILL is what differs

King City→Beverley Acres→Clearview Heights→Elgin Mills→Heritage Park→Hope→

Or put two places side by side: Richmond Hill vs King City

Best time to visitRichmond Hill.

June

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Richmond Hill.

The whole year,
without the guesswork.

Nearby, measured,
and named.