United States · 1991–2020

Best time to visit
Summerville.

October leads for comfortable weather in Summerville: typically 24°C by day, 8.5°C at night, with 99 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high24°C

Typical low8.5°C

Rain in October99 mm

Comfort

October

October · September · May

77climate match

Beach

July

July · September · August

68climate match

Outdoors

October

October · April · November

71climate match

The weakest month is January, scoring 12 against October’s 77 — days reach only 11.7°C, 12° below the 24°C the score treats as ideal, and nights drop to -1.6°C.

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

1211.7° / -1.6°

Feb

1913.6° / -0.3°

Mar

4118.9° / 3.5°

Apr

6723.5° / 6.9°

May

6827.1° / 12.3°

Jun

5531.1° / 17.2°

Jul

5032.3° / 19.4°

Aug

5132.1° / 19°

Sep

6929.8° / 15.3°

Oct

7724° / 8.5°

Nov

4217.9° / 2.5°

Dec

1713.1° / 0.1°

Monthly climate evidence for Summerville — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	11.7°C	-1.6°C	130 mm	7.9	10 h 05	12	Good coverage
February	13.6°C	-0.3°C	136 mm	8.1	10 h 53	19	Good coverage
March	18.9°C	3.5°C	151 mm	8.4	11 h 52	41	Good coverage
April	23.5°C	6.9°C	128 mm	6.9	13 h 00	67	Good coverage
May	27.1°C	12.3°C	125 mm	7.3	13 h 56	68	Good coverage
June	31.1°C	17.2°C	123 mm	8.9	14 h 27	55	Good coverage
July	32.3°C	19.4°C	108 mm	7.7	14 h 15	50	Good coverage
August	32.1°C	19°C	112 mm	7.8	13 h 27	51	Good coverage
September	29.8°C	15.3°C	103 mm	5	12 h 21	69	Good coverage
October	24°C	8.5°C	99 mm	5.9	11 h 15	77	Good coverage
November	17.9°C	2.5°C	122 mm	6.4	10 h 19	42	Good coverage
December	13.1°C	0.1°C	149 mm	8.1	9 h 51	17	Good coverage

Records at SUMMERVILLE, 2001–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.1°C2 Jan 2022	-14.4°C18 Jan 2024	83 mm9 Jan 2024	260 mm2013 · driest 10 mm in 2004	23
February	28.9°C23 Feb 2023	-13.3°C5 Feb 2009	97 mm6 Feb 2020	300 mm2020 · driest 51 mm in 2007	22
March	31.1°C28 Mar 2007	-8.3°C5 Mar 2002	113 mm26 Mar 2021	331 mm2021 · driest 55 mm in 2007	23
April	33.3°C18 Apr 2006	-4.4°C9 Apr 2007	129 mm13 Apr 2020	244 mm2020 · driest 42 mm in 2003	21
May	36.1°C30 May 2006	1.1°C10 May 2020	118 mm16 May 2003	363 mm2003 · driest 1 mm in 2007	24
June	38.9°C30 Jun 2012	8.9°C6 Jun 2006	135 mm20 Jun 2021	279 mm2021 · driest 32 mm in 2009	24
July	40.0°C1 Jul 2012	10.0°C1 Jul 2008	69 mm2 Jul 2003	231 mm2005 · driest 18 mm in 2002	22
August	37.8°C5 Aug 2010	10.0°C27 Aug 2025	84 mm28 Aug 2002	249 mm2021 · driest 13 mm in 2011	21
September	37.2°C16 Sep 2016	4.4°C24 Sep 2012	318 mm4 Sep 2022	378 mm2022 · driest 14 mm in 2016	21
October	36.7°C4 Oct 2019	-3.3°C29 Oct 2008	112 mm26 Oct 2019	273 mm2009 · driest 1 mm in 2024	22
November	30.6°C1 Nov 2016	-11.1°C23 Nov 2008	87 mm28 Nov 2011	189 mm2011 · driest 21 mm in 2017	23
December	25.6°C12 Dec 2007	-13.3°C24 Dec 2022	109 mm9 Dec 2009	329 mm2015 · driest 54 mm in 2025	23

Typical days per month at SUMMERVILLE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	<1	0	18	4
February	<1	0	15	4
March	4	<1	9	5
April	13	1	2	4
May	21	8	0	4
June	27	20	0	4
July	29	25	0	4
August	29	24	0	4
September	26	16	0	3
October	14	3	2	3
November	2	<1	13	3
December	<1	0	16	5

How often, not how much — every day in SUMMERVILLE’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	5%	27%	15%	30%	8.9–14.5°C
February	12%	29%	15%	35%	11.9–16.8°C
March	36%	28%	16%	32%	16.7–21.9°C
April	61%	24%	13%	24%	21.7–25.3°C
May	69%	25%	12%	27%	24.9–29.3°C
June	70%	26%	13%	29%	29.1–32.5°C
July	71%	26%	12%	30%	30.4–33.9°C
August	70%	24%	11%	23%	30.8–33.4°C
September	81%	18%	10%	16%	27.5–32.1°C
October	67%	17%	9%	14%	22.1–25.7°C
November	32%	22%	12%	21%	15.5–20.3°C
December	7%	25%	14%	28%	10.4–16.5°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 4225122
NOAA station: USC00098436 · SUMMERVILLE
Station distance: 4.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 34.48°, 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 SUMMERVILLE is what differs

Trion→Lyerly→Menlo→Broomtown→Berry Springs→Burgess→

Or put two places side by side: Summerville vs Trion

Best time to visitSummerville.

October

July

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Summerville.

The whole year,
without the guesswork.

Nearby, measured,
and named.