United States · 1991–2020

Best time to visit
Lake Wylie.

October leads for comfortable weather in Lake Wylie: typically 23°C by day, 10.1°C at night, with 71 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high23°C

Typical low10.1°C

Rain in October71 mm

Comfort

October

October · April · May

80climate match

Beach

August

August · September · June

76climate match

Outdoors

October

October · April · November

81climate match

The weakest month is January, scoring 21 against October’s 80 — days reach only 11.5°C, 12° below the 24°C the score treats as ideal, and nights drop to -0.6°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

2111.5° / -0.6°

Feb

3213.8° / 1°

Mar

5018° / 4.7°

Apr

7723.2° / 9.2°

May

7727° / 14.2°

Jun

5731° / 18.9°

Jul

4832.3° / 20.7°

Aug

5331.8° / 20.4°

Sep

7228.3° / 16.9°

Oct

8023° / 10.1°

Nov

4917.5° / 4°

Dec

2513° / 0.9°

Monthly climate evidence for Lake Wylie — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	11.5°C	-0.6°C	75 mm	7.6	10 h 02	21	Good coverage
February	13.8°C	1°C	70 mm	8.1	10 h 52	32	Good coverage
March	18°C	4.7°C	88 mm	8.3	11 h 52	50	Good coverage
April	23.2°C	9.2°C	83 mm	7.1	13 h 01	77	Good coverage
May	27°C	14.2°C	89 mm	7.8	13 h 59	77	Good coverage
June	31°C	18.9°C	95 mm	7.5	14 h 30	57	Good coverage
July	32.3°C	20.7°C	98 mm	8.6	14 h 18	48	Good coverage
August	31.8°C	20.4°C	92 mm	7.2	13 h 28	53	Good coverage
September	28.3°C	16.9°C	89 mm	5.9	12 h 21	72	Good coverage
October	23°C	10.1°C	71 mm	6.2	11 h 14	80	Good coverage
November	17.5°C	4°C	80 mm	6.8	10 h 16	49	Good coverage
December	13°C	0.9°C	96 mm	7.7	9 h 48	25	Good coverage

Records at ROCK HILL YORK CO AP, 1999–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.6°C13 Jan 2017	-15.6°C24 Jan 2003	84 mm9 Jan 2024	216 mm2024 · driest 22 mm in 2026	27
February	27.2°C27 Feb 2011	-16.1°C2 Feb 2026	88 mm6 Feb 2020	146 mm2020 · driest 20 mm in 2017	28
March	31.1°C11 Mar 2026	-8.2°C16 Mar 2017	50 mm29 Mar 2001	161 mm2003 · driest 31 mm in 2006	28
April	32.8°C10 Apr 2001	-5.5°C8 Apr 2007	78 mm13 Apr 2019	183 mm2019 · driest 17 mm in 2002	28
May	35.6°C28 May 2019	2.2°C12 May 2020	68 mm21 May 2017	223 mm2003 · driest 13 mm in 2015	27
June	38.9°C29 Jun 2012	8.9°C1 Jun 2024	85 mm27 Jun 2006	168 mm2006 · driest 21 mm in 2008	28
July	40.0°C1 Jul 2012	13.3°C2 Jul 2008	69 mm19 Jul 2024	283 mm2024 · driest 12 mm in 2002	28
August	40.0°C9 Aug 2007	12.2°C7 Aug 2004	114 mm26 Aug 2008	256 mm2008 · driest 15 mm in 2007	27
September	36.1°C12 Sep 2019	5.0°C23 Sep 1999	137 mm26 Sep 2024	245 mm2024 · driest 1 mm in 2019	27
October	37.2°C3 Oct 2019	-2.2°C28 Oct 2001	69 mm10 Oct 1999	155 mm2002 · driest 1 mm in 2000	27
November	28.3°C9 Nov 2005	-9.3°C19 Nov 2014	65 mm2 Nov 2015	225 mm2015 · driest 10 mm in 2007	27
December	26.7°C10 Dec 2007	-13.2°C24 Dec 2022	63 mm23 Dec 2013	223 mm2015 · driest 32 mm in 2010	27

Typical days per month at ROCK HILL YORK CO AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	<1	0	19	3
February	<1	0	14	2
March	4	<1	7	3
April	12	2	<1	3
May	23	8	0	3
June	28	21	0	3
July	31	26	0	4
August	30	24	0	3
September	24	12	0	3
October	12	1	1	2
November	2	0	8	3
December	<1	0	16	3

How often, not how much — every day in ROCK HILL YORK CO AP’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	7%	25%	9%	23%	9.4–13.9°C
February	15%	28%	9%	34%	11.6–16.6°C
March	36%	26%	11%	21%	15.6–21.2°C
April	63%	23%	8%	25%	21.8–24.9°C
May	72%	26%	10%	28%	25.1–28.7°C
June	75%	25%	10%	28%	29.5–32.4°C
July	73%	28%	12%	28%	30.8–33.7°C
August	76%	24%	9%	25%	29.7–33.1°C
September	80%	19%	8%	17%	26.5–31.2°C
October	67%	18%	7%	19%	21.3–25.2°C
November	30%	22%	8%	19%	15.2–19.7°C
December	8%	25%	10%	29%	10.4–15.5°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.

2000Each stripe is one year’s mean temperature against the 26-year average. Warmest: 2019. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4584474
NOAA station: USW00053871 · ROCK HILL YORK CO AP
Station distance: 13.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 35.11°, 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 ROCK HILL YORK CO AP is what differs

Fort Mill→Tega Cay→Newport→India Hook→Riverview→Harrison (historical)→

Or put two places side by side: Lake Wylie vs Fort Mill

Best time to visitLake Wylie.

October

August

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Lake Wylie.

The whole year,
without the guesswork.

Nearby, measured,
and named.