United States · 1991–2020

Best time to visit
Merchantville.

September leads for comfortable weather in Merchantville: typically 26.1°C by day, 14.5°C at night, with 113 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.1°C

Typical low14.5°C

Rain in September113 mm

Comfort

September

September · May · June

77climate match

Beach

July

July · August · June

69climate match

Outdoors

October

October · May · April

76climate match

The weakest month is January, scoring 5 against September’s 77 — days reach only 5.3°C, 19° 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

55.3° / -4.3°

Feb

56.8° / -3.8°

Mar

1611.4° / 0.1°

Apr

4818.2° / 5.3°

May

7323.1° / 10.7°

Jun

6528.4° / 16.4°

Jul

5131.2° / 19.6°

Aug

5729.8° / 18.4°

Sep

7726.1° / 14.5°

Oct

5719.2° / 7.6°

Nov

3113.4° / 2.1°

Dec

58° / -1.6°

Monthly climate evidence for Merchantville — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	5.3°C	-4.3°C	86 mm	8.9	9 h 37	5	Strong coverage
February	6.8°C	-3.8°C	68 mm	8.2	10 h 37	5	Strong coverage
March	11.4°C	0.1°C	111 mm	9.1	11 h 49	16	Strong coverage
April	18.2°C	5.3°C	100 mm	9.5	13 h 12	48	Strong coverage
May	23.1°C	10.7°C	102 mm	10.3	14 h 22	73	Strong coverage
June	28.4°C	16.4°C	122 mm	9.5	14 h 59	65	Strong coverage
July	31.2°C	19.6°C	118 mm	8.9	14 h 44	51	Strong coverage
August	29.8°C	18.4°C	122 mm	8.6	13 h 45	57	Strong coverage
September	26.1°C	14.5°C	113 mm	7.5	12 h 24	77	Strong coverage
October	19.2°C	7.6°C	105 mm	8	11 h 04	57	Strong coverage
November	13.4°C	2.1°C	82 mm	7.3	9 h 55	31	Strong coverage
December	8°C	-1.6°C	111 mm	9	9 h 21	5	Strong coverage

Records at PENNSAUKEN 1N, 1991–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.3°C15 Jan 1995	-20.0°C21 Jan 1994	53 mm24 Jan 1998	153 mm2015 · driest 14 mm in 2025	35
February	25.0°C22 Feb 2018	-17.2°C2 Feb 2019	57 mm23 Feb 2003	142 mm2014 · driest 12 mm in 2002	35
March	34.4°C31 Mar 1998	-13.3°C7 Mar 2015	76 mm24 Mar 2024	242 mm2010 · driest 8 mm in 2006	35
April	35.6°C18 Apr 2002	-4.4°C6 Apr 1993	132 mm16 Apr 2007	269 mm2007 · driest 6 mm in 1992	35
May	37.8°C21 May 1996	0.0°C14 May 1996	96 mm1 May 2014	199 mm2016 · driest 24 mm in 1993	33
June	37.8°C27 Jun 1997	5.6°C6 Jun 1998	88 mm8 Jun 2013	281 mm2013 · driest 42 mm in 1997	33
July	42.2°C16 Jul 1995	10.0°C6 Jul 2009	140 mm15 Jul 1994	297 mm1994 · driest 19 mm in 1999	34
August	39.4°C10 Aug 2001	11.1°C28 Aug 2025	104 mm28 Aug 2006	275 mm2011 · driest 16 mm in 1995	33
September	36.7°C1 Sep 2010	4.4°C22 Sep 1997	161 mm17 Sep 1999	292 mm1999 · driest 12 mm in 1997	33
October	33.3°C7 Oct 1997	-2.2°C31 Oct 2011	97 mm9 Oct 2005	232 mm2005 · driest 0 mm in 2024	34
November	26.7°C16 Nov 1993	-10.0°C17 Nov 1996	70 mm25 Nov 2018	237 mm2018 · driest 19 mm in 2001	35
December	25.0°C13 Dec 1991	-14.4°C24 Dec 2022	72 mm14 Dec 1996	235 mm1996 · driest 23 mm in 1998	35

Typical days per month at PENNSAUKEN 1N, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	24	3	2
February	0	0	22	2	2
March	<1	<1	16	4	1
April	4	1	3	3	<1
May	11	3	<1	3	0
June	23	12	0	4	0
July	28	20	0	4	0
August	27	16	0	4	0
September	18	6	0	3	0
October	5	<1	1	3	0
November	<1	0	11	3	<1
December	0	0	21	4	<1

How often, not how much — every day in PENNSAUKEN 1N’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	<1%	27%	9%	31%	2.2–8.4°C
February	2%	28%	8%	35%	3.6–10.3°C
March	10%	29%	12%	35%	8.9–14.8°C
April	29%	31%	11%	38%	16.0–20.2°C
May	54%	33%	11%	39%	20.8–25.0°C
June	68%	31%	14%	34%	26.9–30.5°C
July	71%	29%	13%	33%	29.4–32.6°C
August	73%	28%	13%	31%	27.9–31.3°C
September	73%	25%	11%	27%	24.7–27.8°C
October	38%	24%	10%	22%	17.6–21.4°C
November	10%	24%	10%	25%	11.1–15.4°C
December	2%	29%	12%	32%	5.1–11.4°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.

1992Each stripe is one year’s mean temperature against the 31-year average. Warmest: 1998. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4828862
NOAA station: USC00286864 · PENNSAUKEN 1N
Station distance: 4.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 39.95°, 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 PENNSAUKEN 1N is what differs

Cherry Hill→Pennsauken→Frankford→Wissinoming→Maple Shade→Lindenwold→

Or put two places side by side: Merchantville vs Cherry Hill

Best time to visitMerchantville.