United States · 1991–2020

Best time to visit
Pennsburg.

September leads for comfortable weather in Pennsburg: typically 25.2°C by day, 12.2°C at night, with 124 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.2°C

Typical low12.2°C

Rain in September124 mm

Comfort

September

September · June · May

74climate match

Beach

July

July · August · June

66climate match

Outdoors

May

May · October · September

69climate match

The weakest month is January, scoring 5 against September’s 74 — days reach only 3.5°C, 20° 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

53.5° / -7.2°

Feb

55.4° / -6°

Mar

79.8° / -2.1°

Apr

3916.7° / 3.4°

May

6522.1° / 9.1°

Jun

7226.7° / 14.2°

Jul

6029.6° / 17.1°

Aug

6528.5° / 16.3°

Sep

7425.2° / 12.2°

Oct

4718.2° / 5.4°

Nov

2312.1° / -0.1°

Dec

56.4° / -3.9°

Monthly climate evidence for Pennsburg — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	3.5°C	-7.2°C	92 mm	8.8	9 h 35	5	Good coverage
February	5.4°C	-6°C	80 mm	7.9	10 h 36	5	Good coverage
March	9.8°C	-2.1°C	103 mm	9	11 h 49	7	Good coverage
April	16.7°C	3.4°C	106 mm	9.5	13 h 13	39	Good coverage
May	22.1°C	9.1°C	119 mm	10.5	14 h 24	65	Good coverage
June	26.7°C	14.2°C	121 mm	9.5	15 h 02	72	Good coverage
July	29.6°C	17.1°C	125 mm	8.7	14 h 47	60	Good coverage
August	28.5°C	16.3°C	122 mm	8.9	13 h 46	65	Good coverage
September	25.2°C	12.2°C	124 mm	7.5	12 h 25	74	Good coverage
October	18.2°C	5.4°C	118 mm	8.6	11 h 03	47	Strong coverage
November	12.1°C	-0.1°C	83 mm	7.5	9 h 53	23	Strong coverage
December	6.4°C	-3.9°C	116 mm	9.8	9 h 18	5	Strong coverage

Records at SELLERSVILLE, 1996–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.7°C7 Jan 2007	-23.9°C24 Jan 2014	68 mm10 Jan 2024	156 mm2024 · driest 24 mm in 2025	30
February	25.6°C22 Feb 2018	-20.6°C24 Feb 2015	53 mm18 Feb 2003	159 mm2008 · driest 14 mm in 2002	30
March	30.0°C31 Mar 1998	-18.3°C7 Mar 2015	76 mm14 Mar 2010	225 mm2010 · driest 28 mm in 2006	30
April	33.9°C18 Apr 2002	-8.9°C3 Apr 2016	73 mm16 Apr 2014	207 mm2007 · driest 45 mm in 2021	30
May	34.4°C20 May 2026	-2.8°C1 May 2000	81 mm17 May 2014	256 mm2025 · driest 14 mm in 2015	30
June	36.1°C25 Jun 2025	2.2°C7 Jun 2000	98 mm25 Jun 2006	360 mm2006 · driest 25 mm in 1999	30
July	38.3°C4 Jul 2026	3.3°C6 Jul 2000	77 mm13 Jul 2004	244 mm2004 · driest 10 mm in 1999	30
August	38.3°C1 Aug 1999	5.0°C15 Aug 2015	189 mm28 Aug 2011	348 mm2011 · driest 26 mm in 2008	29
September	35.0°C1 Sep 2010	1.1°C25 Sep 1997	167 mm17 Sep 1999	292 mm1999 · driest 19 mm in 2005	29
October	32.8°C3 Oct 2019	-9.4°C24 Oct 2008	153 mm1 Oct 2010	296 mm2005 · driest 0 mm in 2024	30
November	28.3°C1 Nov 2024	-12.2°C23 Nov 2018	72 mm23 Nov 2011	208 mm2018 · driest 12 mm in 2021	30
December	23.9°C8 Dec 1998	-19.4°C14 Dec 2005	75 mm17 Dec 2000	232 mm1996 · driest 24 mm in 1998	30

Typical days per month at SELLERSVILLE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	3	3
February	0	0	24	3	3
March	<1	0	21	4	1
April	3	<1	8	4	<1
May	10	2	<1	4	0
June	21	7	0	4	0
July	29	15	0	4	0
August	27	11	0	4	0
September	16	4	0	4	0
October	3	<1	5	3	0
November	<1	0	17	3	<1
December	0	0	25	4	2

How often, not how much — every day in SELLERSVILLE’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%	29%	10%	33%	0.4–7.0°C
February	<1%	28%	10%	28%	1.9–8.9°C
March	6%	29%	12%	39%	7.0–13.6°C
April	25%	30%	11%	36%	14.4–18.8°C
May	51%	33%	14%	45%	20.2–24.4°C
June	67%	31%	12%	38%	25.4–28.2°C
July	71%	29%	13%	32%	27.6–31.3°C
August	71%	28%	12%	30%	27.0–30.0°C
September	70%	25%	12%	24%	23.8–27.1°C
October	33%	26%	10%	29%	16.7–21.0°C
November	8%	24%	9%	26%	9.4–14.8°C
December	<1%	31%	12%	37%	3.9–9.7°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.

1997Each stripe is one year’s mean temperature against the 29-year average. Warmest: 2024. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5205484
NOAA station: USC00367938 · SELLERSVILLE
Station distance: 15.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 24 usable years
Daylight: Calculated from latitude 40.39°, 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 SELLERSVILLE is what differs

Quakertown→Perkasie→Souderton→Telford→Sellersville→Hatfield→

Or put two places side by side: Pennsburg vs Quakertown

Best time to visitPennsburg.

September

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Pennsburg.

The whole year,
without the guesswork.

Nearby, measured,
and named.