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Canada · 1991–2020

Best time to visit
Sunbury-York South.

August leads for comfortable weather in Sunbury-York South: typically 25°C by day, 12.3°C at night, with 68 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high25°C

Typical low12.3°C

Rain in August68 mm

Comfort

August

August · July · June

84climate match

Beach

August

August · July · June

54climate match

Outdoors

September

September · June · August

80climate match

The weakest month is January, scoring 5 against August’s 84 — days reach only -4.1°C, 28° 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

5-4.1° / -14.9°

Feb

5-2.3° / -13.7°

Mar

53.2° / -7.5°

Apr

1310.2° / -0.9°

May

4817.5° / 4.8°

Jun

7522.8° / 10.1°

Jul

7925.5° / 13.3°

Aug

8425° / 12.3°

Sep

6420.5° / 7.6°

Oct

2513.1° / 1.9°

Nov

56.5° / -2.7°

Dec

5-0.1° / -9.7°

Monthly climate evidence for Sunbury-York South — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-4.1°C	-14.9°C	86 mm	9.8	9 h 02	5	Good coverage
February	-2.3°C	-13.7°C	67 mm	8.3	10 h 17	5	Good coverage
March	3.2°C	-7.5°C	89 mm	9.3	11 h 46	5	Good coverage
April	10.2°C	-0.9°C	77 mm	10	13 h 28	13	Good coverage
May	17.5°C	4.8°C	81 mm	9.6	14 h 54	48	Good coverage
June	22.8°C	10.1°C	80 mm	9.3	15 h 42	75	Good coverage
July	25.5°C	13.3°C	88 mm	9.7	15 h 23	79	Good coverage
August	25°C	12.3°C	68 mm	6.6	14 h 08	84	Good coverage
September	20.5°C	7.6°C	83 mm	7.9	12 h 29	64	Good coverage
October	13.1°C	1.9°C	108 mm	9.1	10 h 50	25	Good coverage
November	6.5°C	-2.7°C	102 mm	10	9 h 24	5	Good coverage
December	-0.1°C	-9.7°C	89 mm	10	8 h 41	5	Good coverage

Records at FREDERICTON A, 1951–2011
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	14.6°C14 Jan 2006	-35.6°C19 Jan 1971	71 mm4 Jan 2000	247 mm1978 · driest 16 mm in 1970	60
February	18.6°C20 Feb 1994	-37.2°C2 Feb 1962	60 mm13 Feb 2008	152 mm1952 · driest 21 mm in 2004	60
March	22.2°C30 Mar 1962	-28.9°C1 Mar 1982	59 mm14 Mar 1984	212 mm1972 · driest 24 mm in 1965	60
April	30.3°C27 Apr 1990	-15.1°C5 Apr 1995	59 mm17 Apr 1954	155 mm2000 · driest 16 mm in 1966	61
May	35.2°C23 May 1977	-6.7°C18 May 1951	84 mm27 May 1961	207 mm1979 · driest 19 mm in 1978	61
June	35.3°C27 Jun 2001	-0.6°C6 Jun 1971	70 mm27 Jun 1954	195 mm1977 · driest 23 mm in 2005	61
July	36.7°C15 Jul 1952	1.7°C3 Jul 1962	69 mm11 Jul 1970	192 mm2002 · driest 25 mm in 2010	61
August	37.2°C2 Aug 1975	1.3°C28 Aug 1978	149 mm5 Aug 1989	233 mm1989 · driest 13 mm in 2002	61
September	34.1°C1 Sep 2010	-3.9°C27 Sep 1971	124 mm22 Sep 1999	271 mm1999 · driest 12 mm in 2011	61
October	28.7°C9 Oct 2011	-8.9°C22 Oct 1959	70 mm8 Oct 2005	201 mm2003 · driest 21 mm in 1997	61
November	21.1°C1 Nov 1956	-20.2°C30 Nov 1996	81 mm1 Nov 1960	207 mm1983 · driest 39 mm in 1978	61
December	15.9°C17 Dec 2000	-33.8°C30 Dec 1989	81 mm4 Dec 1967	204 mm1972 · driest 35 mm in 2010	61

Typical days per month at FREDERICTON A, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	3	11
February	0	0	27	3	9
March	0	0	28	3	8
April	<1	0	18	3	4
May	3	<1	2	3	<1
June	10	2	0	3	0
July	19	3	0	3	0
August	15	3	0	2	0
September	4	<1	2	3	0
October	<1	0	12	4	<1
November	0	0	21	4	3
December	0	0	28	3	9

How often, not how much — every day in FREDERICTON A’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%	35%	11%	46%	-7.2–-1.5°C
February	0%	32%	10%	42%	-4.7–0.1°C
March	<1%	33%	10%	45%	1.1–4.9°C
April	3%	33%	9%	41%	8.0–11.4°C
May	26%	34%	10%	45%	15.3–19.7°C
June	55%	32%	9%	41%	21.1–24.2°C
July	66%	31%	9%	39%	23.5–27.2°C
August	69%	27%	9%	29%	23.1–26.2°C
September	37%	28%	9%	33%	18.2–21.6°C
October	8%	30%	11%	36%	11.2–14.6°C
November	<1%	36%	12%	48%	3.7–8.3°C
December	0%	37%	12%	51%	-4.2–2.2°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.

1952Each stripe is one year’s mean temperature against the 60-year average. Warmest: 2010. Coolest: 1972.2011

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 13592176
NOAA station: CA008101500 · FREDERICTON A
Station distance: 6.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 45.84°, 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 FREDERICTON A is what differs

Rusagonis→Beaver Dam→Lower Lincoln→Oromocto West→Rusagonis Station→Sunpoke→

Or put two places side by side: Sunbury-York South vs Rusagonis

Best time to visitSunbury-York South.

August

August

September

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Sunbury-York South.

The whole year,
without the guesswork.

Nearby, measured,
and named.