United States · 1991–2020

Best time to visit
Flat Rock.

September leads for comfortable weather in Flat Rock: typically 26.6°C by day, 13.2°C at night, with 109 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.6°C

Typical low13.2°C

Rain in September109 mm

Comfort

September

September · May · June

73climate match

Beach

August

August · July · June

62climate match

Outdoors

October

October · April · May

76climate match

The weakest month is January, scoring 5 against September’s 73 — days reach only 8.7°C, 15° below the 24°C the score treats as ideal, and nights drop to -3.8°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

58.7° / -3.8°

Feb

1410.7° / -2.7°

Mar

2915.1° / 0.5°

Apr

5520.7° / 4.9°

May

7124.8° / 10.2°

Jun

6528.7° / 15.1°

Jul

5330.5° / 17.5°

Aug

5929.7° / 16.8°

Sep

7326.6° / 13.2°

Oct

6521.4° / 6.3°

Nov

3515.5° / 0.4°

Dec

810.2° / -2.4°

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	8.7°C	-3.8°C	103 mm	8.5	9 h 55	5	Strong coverage
February	10.7°C	-2.7°C	80 mm	7.9	10 h 48	14	Strong coverage
March	15.1°C	0.5°C	106 mm	8.8	11 h 51	29	Strong coverage
April	20.7°C	4.9°C	109 mm	9.1	13 h 04	55	Strong coverage
May	24.8°C	10.2°C	115 mm	10	14 h 05	71	Strong coverage
June	28.7°C	15.1°C	126 mm	10.4	14 h 38	65	Strong coverage
July	30.5°C	17.5°C	133 mm	10.9	14 h 25	53	Strong coverage
August	29.7°C	16.8°C	125 mm	10.4	13 h 33	59	Strong coverage
September	26.6°C	13.2°C	109 mm	8.4	12 h 22	73	Strong coverage
October	21.4°C	6.3°C	90 mm	6.7	11 h 12	65	Strong coverage
November	15.5°C	0.4°C	87 mm	7.1	10 h 10	35	Strong coverage
December	10.2°C	-2.4°C	106 mm	8.8	9 h 41	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

+0.2

Feb

+0.9

Mar

-0.5

Apr

-0.7

May

-0.8

Jun

-0.2

Jul

+0.2

Aug

-0.8

Sep

-0.2

Oct

+0.2

Nov

-0.2

Dec

+1.0

September daytime highs, 2011–2025. Last recorded: 27.1°C.

Records at MT AIRY 2 W, 1893–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.1°C26 Jan 1950	-23.3°C21 Jan 1985	85 mm14 Jan 2005	252 mm2013 · driest 10 mm in 1907	132
February	27.8°C25 Feb 1930	-19.4°C6 Feb 1996	79 mm13 Feb 1966	237 mm1939 · driest 10 mm in 1898	132
March	31.7°C23 Mar 1907	-16.7°C15 Mar 1993	102 mm16 Mar 1923	236 mm1975 · driest 20 mm in 2006	133
April	34.4°C12 Apr 1930	-7.8°C11 Apr 1909	105 mm13 Apr 2020	232 mm2020 · driest 0 mm in 1942	134
May	36.7°C26 May 1911	-2.8°C3 May 1909	89 mm19 May 2018	276 mm2012 · driest 26 mm in 1900	130
June	39.4°C30 Jun 2012	1.7°C2 Jun 1910	240 mm13 Jun 1947	330 mm1947 · driest 12 mm in 1959	132
July	40.6°C14 Jul 1954	6.1°C5 Jul 1933	122 mm9 Jul 1939	404 mm1905 · driest 18 mm in 1930	130
August	39.4°C5 Aug 1930	5.0°C23 Aug 1909	141 mm4 Aug 2016	422 mm1901 · driest 11 mm in 1963	130
September	38.3°C5 Sep 1954	0.0°C22 Sep 1918	127 mm22 Sep 1979	268 mm1975 · driest 0 mm in 1903	129
October	35.6°C1 Oct 1919	-6.7°C24 Oct 1904	125 mm2 Oct 1929	312 mm1929 · driest 0 mm in 2000	130
November	30.0°C1 Nov 1950	-16.1°C26 Nov 1950	81 mm28 Nov 1993	220 mm1985 · driest 3 mm in 1901	129
December	26.7°C17 Dec 1924	-18.3°C25 Dec 1983	91 mm11 Dec 2024	226 mm1901 · driest 7 mm in 1965	128

Typical days per month at MT AIRY 2 W, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	24	3	1
February	<1	0	22	3	1
March	2	0	16	4	<1
April	8	<1	5	4	0
May	18	4	<1	4	0
June	27	13	0	4	0
July	30	20	0	4	0
August	29	17	0	4	0
September	21	7	0	3	0
October	8	<1	4	3	0
November	1	0	17	3	0
December	<1	0	23	4	<1

How often, not how much — every day in MT AIRY 2 W’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%	26%	10%	29%	6.2–12.3°C
February	5%	27%	11%	32%	7.9–14.0°C
March	21%	28%	11%	31%	12.8–18.8°C
April	49%	28%	11%	31%	19.0–23.6°C
May	64%	31%	12%	39%	23.5–28.0°C
June	68%	32%	12%	41%	27.4–31.2°C
July	65%	35%	14%	44%	29.5–32.5°C
August	69%	31%	12%	37%	28.7–31.9°C
September	74%	24%	10%	25%	25.2–29.4°C
October	58%	20%	8%	19%	19.7–23.9°C
November	21%	22%	8%	21%	12.9–18.2°C
December	4%	25%	11%	28%	7.4–12.9°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.

1894Each stripe is one year’s mean temperature against the 117-year average. Warmest: 1990. Coolest: 1996.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4466446
NOAA station: USC00315890 · MT AIRY 2 W
Station distance: 7.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 36.51°, 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 MT AIRY 2 W is what differs

Mount Airy→Thurmond→Dobson→Pilot Mountain→Toast→Cana→

Or put two places side by side: Flat Rock vs Mount Airy

Best time to visitFlat Rock.

September

August

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.