United States · 1991–2020

Best time to visit
Bethany.

September leads for comfortable weather in Bethany: typically 26.6°C by day, 12.7°C at night, with 70 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.6°C

Typical low12.7°C

Rain in September70 mm

Comfort

September

September · May · August

80climate match

Beach

August

August · July · June

78climate match

Outdoors

October

October · April · September

75climate match

The weakest month is January, scoring 5 against September’s 80 — days reach only 1.4°C, 23° 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

51.4° / -8.1°

Feb

53.5° / -6.7°

Mar

1810.4° / -0.7°

Apr

4718.1° / 5.3°

May

7323.4° / 11.6°

Jun

6528.2° / 16.7°

Jul

6029.7° / 18.2°

Aug

7229.1° / 16.7°

Sep

8026.6° / 12.7°

Oct

5619° / 6.3°

Nov

2011.6° / 0.7°

Dec

54.2° / -4.4°

Monthly climate evidence for Bethany — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	1.4°C	-8.1°C	59 mm	6.8	9 h 39	5	Good coverage
February	3.5°C	-6.7°C	60 mm	6.7	10 h 38	5	Good coverage
March	10.4°C	-0.7°C	69 mm	7.1	11 h 49	18	Good coverage
April	18.1°C	5.3°C	111 mm	9.1	13 h 11	47	Good coverage
May	23.4°C	11.6°C	119 mm	11.1	14 h 20	73	Good coverage
June	28.2°C	16.7°C	129 mm	8.7	14 h 57	65	Good coverage
July	29.7°C	18.2°C	113 mm	8.1	14 h 43	60	Good coverage
August	29.1°C	16.7°C	77 mm	5.7	13 h 43	72	Good coverage
September	26.6°C	12.7°C	70 mm	5.6	12 h 24	80	Good coverage
October	19°C	6.3°C	94 mm	7.4	11 h 05	56	Good coverage
November	11.6°C	0.7°C	96 mm	8.3	9 h 56	20	Good coverage
December	4.2°C	-4.4°C	66 mm	7	9 h 23	5	Good coverage

Records at SULLIVAN 3S, 2001–2023
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	19.4°C8 Jan 2008	-25.6°C30 Jan 2019	71 mm11 Jan 2020	181 mm2005 · driest 12 mm in 2003	22
February	21.7°C21 Feb 2016	-26.1°C8 Feb 2014	72 mm21 Feb 2018	130 mm2018 · driest 11 mm in 2017	23
March	27.8°C22 Mar 2012	-20.0°C6 Mar 2015	63 mm31 Mar 2022	142 mm2022 · driest 21 mm in 2013	23
April	29.4°C30 Apr 2001	-7.8°C2 Apr 2018	86 mm19 Apr 2013	260 mm2011 · driest 30 mm in 2021	23
May	36.1°C29 May 2018	-1.7°C4 May 2005	89 mm1 May 2017	301 mm2002 · driest 38 mm in 2012	23
June	37.2°C29 Jun 2012	7.2°C19 Jun 2004	124 mm19 Jun 2015	243 mm2015 · driest 25 mm in 2012	23
July	39.4°C8 Jul 2012	8.9°C1 Jul 2001	121 mm20 Jul 2010	225 mm2008 · driest 14 mm in 2011	23
August	37.8°C26 Aug 2003	6.7°C13 Aug 2004	168 mm31 Aug 2003	180 mm2003 · driest 13 mm in 2020	23
September	36.7°C2 Sep 2011	0.6°C24 Sep 2012	66 mm3 Sep 2010	206 mm2008 · driest 1 mm in 2004	23
October	33.3°C2 Oct 2019	-5.6°C30 Oct 2008	64 mm27 Oct 2019	230 mm2009 · driest 17 mm in 2010	22
November	25.6°C9 Nov 2020	-15.6°C12 Nov 2019	68 mm25 Nov 2010	163 mm2011 · driest 25 mm in 2021	21
December	21.7°C4 Dec 2012	-25.6°C23 Dec 2022	71 mm25 Dec 2010	132 mm2008 · driest 10 mm in 2017	22

Typical days per month at SULLIVAN 3S, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	25	2	3
February	0	0	23	2	3
March	<1	0	18	3	<1
April	4	0	6	4	<1
May	14	3	<1	4	0
June	25	11	0	4	0
July	28	16	0	3	0
August	27	13	0	2	0
September	19	7	0	2	0
October	6	1	4	3	0
November	<1	0	14	3	<1
December	0	0	24	2	2

How often, not how much — every day in SULLIVAN 3S’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%	21%	6%	19%	-1.5–5.0°C
February	<1%	24%	7%	23%	-1.6–8.0°C
March	8%	25%	9%	28%	7.7–14.2°C
April	28%	29%	11%	38%	15.9–20.2°C
May	49%	35%	12%	39%	21.5–26.0°C
June	71%	30%	14%	31%	26.8–30.0°C
July	73%	25%	10%	20%	27.7–31.5°C
August	78%	19%	8%	15%	27.5–30.6°C
September	75%	20%	8%	16%	24.1–28.5°C
October	36%	23%	10%	24%	16.7–21.2°C
November	10%	25%	10%	20%	7.1–15.4°C
December	<1%	22%	7%	19%	1.8–6.6°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.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4233670
NOAA station: USC00118389 · SULLIVAN 3S
Station distance: 14.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 39.65°, 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 SULLIVAN 3S is what differs

Sullivan→Lovington→Allenville→Bruce→Cadwell→Chipps→

Or put two places side by side: Bethany vs Sullivan

Best time to visitBethany.