United States · 1991–2020

Best time to visit
Flat Rock.

September leads for comfortable weather in Flat Rock: typically 25.3°C by day, 14.2°C at night, with 123 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.3°C

Typical low14.2°C

Rain in September123 mm

Comfort

September

September · May · June

78climate match

Beach

July

July · August · June

63climate match

Outdoors

October

October · April · May

79climate match

The weakest month is January, scoring 5 against September’s 78 — days reach only 9°C, 15° below the 24°C the score treats as ideal, and nights drop to -2.2°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

59° / -2.2°

Feb

1511.4° / -0.9°

Mar

2915.1° / 2.4°

Apr

5620.4° / 6.7°

May

7724.2° / 11.7°

Jun

6727.5° / 16°

Jul

5429.2° / 18.2°

Aug

5928.3° / 17.7°

Sep

7825.3° / 14.2°

Oct

6220.4° / 7.7°

Nov

3214.9° / 2°

Dec

810.5° / -0.7°

Monthly climate evidence for Flat Rock — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	9°C	-2.2°C	131 mm	8.5	10 h 01	5	Strong coverage
February	11.4°C	-0.9°C	110 mm	7.7	10 h 51	15	Strong coverage
March	15.1°C	2.4°C	125 mm	9.7	11 h 52	29	Strong coverage
April	20.4°C	6.7°C	125 mm	8.4	13 h 02	56	Strong coverage
May	24.2°C	11.7°C	112 mm	9	14 h	77	Strong coverage
June	27.5°C	16°C	128 mm	10.2	14 h 31	67	Strong coverage
July	29.2°C	18.2°C	147 mm	11.6	14 h 19	54	Strong coverage
August	28.3°C	17.7°C	141 mm	11	13 h 29	59	Strong coverage
September	25.3°C	14.2°C	123 mm	7.7	12 h 21	78	Strong coverage
October	20.4°C	7.7°C	103 mm	6.5	11 h 14	62	Strong coverage
November	14.9°C	2°C	115 mm	7.1	10 h 16	32	Strong coverage
December	10.5°C	-0.7°C	133 mm	8.4	9 h 47	8	Strong coverage

What has changed

Flat Rock runs -0.1°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

-0.6

Feb

+1.2

Mar

-0.5

Apr

-0.5

May

-0.5

Jun

0.0

Jul

+0.2

Aug

-0.7

Sep

+0.1

Oct

+0.1

Nov

-0.7

Dec

+0.7

September daytime highs, 2011–2025. Last recorded: 24.9°C.

Records at HENDERSONVILLE 1 NE, 1898–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.1°C25 Jan 1943	-25.6°C21 Jan 1985	145 mm8 Jan 1998	315 mm1906 · driest 10 mm in 1907	128
February	28.9°C25 Feb 1930	-22.8°C13 Feb 1899	127 mm13 Feb 1966	271 mm1939 · driest 12 mm in 1978	127
March	31.1°C22 Mar 1907	-18.9°C15 Mar 1993	122 mm17 Mar 1990	296 mm1952 · driest 12 mm in 2007	128
April	32.8°C6 Apr 2010	-8.9°C1 Apr 1923	96 mm20 Apr 2019	241 mm1920 · driest 3 mm in 1976	128
May	34.4°C21 May 1941	-6.7°C10 May 1906	210 mm20 May 1942	422 mm2018 · driest 16 mm in 2007	127
June	36.7°C30 Jun 2012	1.7°C2 Jun 1966	121 mm27 Jun 2005	361 mm2005 · driest 16 mm in 1993	128
July	37.8°C28 Jul 1952	7.2°C5 Jul 1933	252 mm16 Jul 1916	561 mm1916 · driest 20 mm in 1998	128
August	38.3°C23 Aug 1983	4.4°C29 Aug 1968	233 mm24 Aug 1961	675 mm1901 · driest 13 mm in 1925	125
September	36.7°C1 Sep 1921	-1.1°C30 Sep 1967	226 mm27 Sep 2024	505 mm2004 · driest 4 mm in 1984	124
October	33.3°C5 Oct 1941	-8.3°C30 Oct 1952	159 mm15 Oct 1914	371 mm1918 · driest 0 mm in 1904	126
November	27.2°C2 Nov 1974	-18.9°C26 Nov 1950	112 mm29 Nov 1914	319 mm1948 · driest 5 mm in 1910	126
December	25.0°C18 Dec 1984	-20.0°C25 Dec 1983	136 mm1 Dec 2010	326 mm1918 · driest 6 mm in 1965	127

Typical days per month at HENDERSONVILLE 1 NE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	18	4	<1
February	<1	0	16	4	<1
March	1	0	10	4	<1
April	6	<1	2	4	0
May	14	2	0	4	0
June	24	8	0	4	0
July	28	14	0	5	0
August	27	9	0	4	0
September	17	3	0	3	0
October	4	<1	2	3	0
November	<1	0	12	3	<1
December	0	0	17	4	<1

How often, not how much — every day in HENDERSONVILLE 1 NE’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	3%	27%	12%	30%	6.0–13.0°C
February	6%	29%	13%	32%	8.4–14.3°C
March	19%	31%	14%	35%	12.5–18.7°C
April	47%	27%	12%	32%	18.6–22.8°C
May	61%	32%	13%	41%	22.7–26.3°C
June	64%	35%	14%	46%	26.0–29.9°C
July	60%	40%	15%	54%	27.7–30.8°C
August	64%	36%	14%	47%	27.1–30.2°C
September	70%	27%	11%	29%	24.0–27.8°C
October	51%	21%	10%	20%	18.8–22.6°C
November	17%	23%	10%	22%	12.5–17.6°C
December	4%	27%	12%	29%	7.6–13.1°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.

1899Each stripe is one year’s mean temperature against the 119-year average. Warmest: 1990. Coolest: 1966.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4466444
NOAA station: USC00313976 · HENDERSONVILLE 1 NE
Station distance: 6.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 35.27°, 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 HENDERSONVILLE 1 NE is what differs

Hendersonville→East Flat Rock→Mountain Home→Dana→Edneyville→Laurel Park→

Or put two places side by side: Flat Rock vs Hendersonville

Best time to visitFlat Rock.

September

July

October

The whole year,without the guesswork.

Flat Rock runs -0.1°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Flat Rock.

The whole year,
without the guesswork.

Flat Rock runs -0.1°C
on the 1961–1990 baseline.

Nearby, measured,
and named.