United States · 1991–2020

Best time to visit
Sylva.

September leads for comfortable weather in Sylva: typically 26.3°C by day, 13.4°C at night, with 109 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.3°C

Typical low13.4°C

Rain in September109 mm

Comfort

September

September · May · October

74climate match

Beach

August

August · July · June

67climate match

Outdoors

October

October · April · May

79climate match

The weakest month is January, scoring 5 against September’s 74 — days reach only 9.3°C, 15° below the 24°C the score treats as ideal, and nights drop to -3.1°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

59.3° / -3.1°

Feb

1211.8° / -1.7°

Mar

3216.2° / 1.5°

Apr

5721.5° / 5.6°

May

7125.2° / 10.4°

Jun

6528.1° / 14.9°

Jul

5729.7° / 17.2°

Aug

6329.1° / 16.7°

Sep

7426.3° / 13.4°

Oct

6721.3° / 6.8°

Nov

3315.6° / 0.9°

Dec

810.8° / -1.5°

Monthly climate evidence for Sylva — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	9.3°C	-3.1°C	124 mm	9.8	10 h 01	5	Strong coverage
February	11.8°C	-1.7°C	116 mm	9.3	10 h 51	12	Strong coverage
March	16.2°C	1.5°C	117 mm	10.3	11 h 52	32	Strong coverage
April	21.5°C	5.6°C	118 mm	9.6	13 h 02	57	Strong coverage
May	25.2°C	10.4°C	111 mm	10.1	14 h 00	71	Strong coverage
June	28.1°C	14.9°C	129 mm	11.7	14 h 32	65	Strong coverage
July	29.7°C	17.2°C	127 mm	11.7	14 h 19	57	Strong coverage
August	29.1°C	16.7°C	108 mm	10.1	13 h 29	63	Strong coverage
September	26.3°C	13.4°C	109 mm	8.3	12 h 21	74	Strong coverage
October	21.3°C	6.8°C	82 mm	6.4	11 h 14	67	Strong coverage
November	15.6°C	0.9°C	103 mm	7.3	10 h 15	33	Strong coverage
December	10.8°C	-1.5°C	128 mm	9.6	9 h 47	8	Strong coverage

What has changed

Sylva runs +0.6°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

-0.5

Feb

+1.4

Mar

+0.4

Apr

+0.5

May

+0.5

Jun

+0.8

Jul

+1.2

Aug

+0.5

Sep

+0.8

Oct

+0.4

Nov

-0.1

Dec

+1.0

September daytime highs, 2011–2025. Last recorded: 26.4°C.

Records at CULLOWHEE, 1909–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.1°C28 Jan 1914	-28.3°C21 Jan 1985	89 mm31 Jan 1957	294 mm2013 · driest 15 mm in 1986	116
February	26.1°C28 Feb 1918	-25.6°C18 Feb 1958	109 mm16 Feb 1990	271 mm2020 · driest 17 mm in 1978	117
March	30.6°C29 Mar 2020	-18.3°C15 Mar 1993	127 mm27 Mar 1994	304 mm1917 · driest 30 mm in 1910	117
April	32.8°C24 Apr 1925	-8.3°C11 Apr 1960	74 mm4 Apr 1974	199 mm2013 · driest 9 mm in 1976	117
May	33.3°C25 May 1926	-3.3°C4 May 1971	102 mm28 May 1973	304 mm1976 · driest 18 mm in 1926	116
June	36.7°C29 Jun 1936	0.6°C2 Jun 1966	159 mm30 Jun 2001	314 mm2001 · driest 11 mm in 1986	117
July	37.2°C28 Jul 1952	6.1°C16 Jul 1926	103 mm4 Jul 2013	305 mm2013 · driest 11 mm in 1957	117
August	36.7°C13 Aug 1987	3.3°C25 Aug 1925	96 mm7 Aug 1978	290 mm1949 · driest 15 mm in 1999	115
September	36.1°C5 Sep 1925	-2.8°C28 Sep 1947	146 mm27 Sep 2024	313 mm2004 · driest 6 mm in 1984	116
October	36.1°C3 Oct 1919	-10.0°C30 Oct 1952	96 mm4 Oct 1995	221 mm1918 · driest 0 mm in 1963	115
November	27.8°C4 Nov 2003	-15.6°C26 Nov 1950	81 mm28 Nov 1948	253 mm1948 · driest 13 mm in 1924	115
December	26.7°C31 Dec 1951	-23.9°C30 Dec 1917	89 mm26 Dec 2010	344 mm2015 · driest 10 mm in 1965	117

Typical days per month at CULLOWHEE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	22	4	1
February	<1	0	19	4	<1
March	2	0	14	4	<1
April	9	<1	4	4	0
May	18	3	<1	4	0
June	26	9	0	4	0
July	30	16	0	4	0
August	29	13	0	3	0
September	21	5	0	3	0
October	6	<1	4	2	0
November	<1	0	16	4	<1
December	0	0	21	4	1

How often, not how much — every day in CULLOWHEE’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	2%	31%	13%	39%	6.9–13.4°C
February	5%	33%	14%	41%	9.3–15.5°C
March	22%	33%	15%	41%	13.4–19.3°C
April	50%	29%	11%	36%	19.5–23.4°C
May	63%	32%	12%	42%	23.3–27.0°C
June	64%	36%	12%	47%	26.8–30.1°C
July	61%	39%	14%	53%	28.2–31.3°C
August	66%	34%	11%	43%	27.6–30.5°C
September	72%	26%	10%	29%	24.6–28.6°C
October	60%	20%	8%	19%	19.8–23.7°C
November	20%	24%	10%	27%	13.6–18.2°C
December	3%	29%	13%	35%	8.4–13.9°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.

1910Each stripe is one year’s mean temperature against the 111-year average. Warmest: 1990. Coolest: 1981.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4494335
NOAA station: USC00312200 · CULLOWHEE
Station distance: 8.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 35.37°, 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 CULLOWHEE is what differs

Cullowhee→Webster→Forest Hills→Dillsboro→Addie→Argura→

Or put two places side by side: Sylva vs Cullowhee

Best time to visitSylva.

September

August

October

The whole year,without the guesswork.

Sylva runs +0.6°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Sylva.

The whole year,
without the guesswork.

Sylva runs +0.6°C
on the 1961–1990 baseline.

Nearby, measured,
and named.