United States · 1991–2020

Best time to visit
Appalachia.

September leads for comfortable weather in Appalachia: typically 26.7°C by day, 13.4°C at night, with 97 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.7°C

Typical low13.4°C

Rain in September97 mm

Comfort

September

September · May · June

75climate match

Beach

August

August · July · June

67climate match

Outdoors

October

October · April · May

78climate match

The weakest month is January, scoring 5 against September’s 75 — days reach only 7.1°C, 17° below the 24°C the score treats as ideal, and nights drop to -4.2°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

57.1° / -4.2°

Feb

59.5° / -2.8°

Mar

2014.4° / 0.7°

Apr

4920.1° / 5.2°

May

7024.4° / 10.7°

Jun

6728° / 15.4°

Jul

5429.3° / 17.7°

Aug

6229.1° / 17°

Sep

7526.7° / 13.4°

Oct

6420.9° / 6.3°

Nov

3014.7° / 0.6°

Dec

59.1° / -2.4°

Monthly climate evidence for Appalachia — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	7.1°C	-4.2°C	119 mm	10.2	9 h 53	5	Strong coverage
February	9.5°C	-2.8°C	125 mm	10.3	10 h 46	5	Strong coverage
March	14.4°C	0.7°C	136 mm	11.9	11 h 51	20	Strong coverage
April	20.1°C	5.2°C	130 mm	10.9	13 h 05	49	Strong coverage
May	24.4°C	10.7°C	129 mm	11.7	14 h 07	70	Strong coverage
June	28°C	15.4°C	117 mm	11.4	14 h 41	67	Strong coverage
July	29.3°C	17.7°C	142 mm	12.3	14 h 27	54	Strong coverage
August	29.1°C	17°C	115 mm	10.1	13 h 34	62	Strong coverage
September	26.7°C	13.4°C	97 mm	8.1	12 h 22	75	Strong coverage
October	20.9°C	6.3°C	79 mm	7.5	11 h 11	64	Strong coverage
November	14.7°C	0.6°C	92 mm	9	10 h 09	30	Strong coverage
December	9.1°C	-2.4°C	141 mm	10.9	9 h 38	5	Strong coverage

Records at BIG STONE GAP, 1990–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.9°C12 Jan 2020	-24.4°C20 Jan 1994	61 mm31 Jan 2013	228 mm2013 · driest 51 mm in 2003	36
February	24.4°C24 Feb 2018	-27.2°C20 Feb 2015	110 mm16 Feb 2003	326 mm2018 · driest 39 mm in 2007	37
March	28.9°C26 Mar 2007	-18.9°C15 Mar 1993	110 mm18 Mar 2002	289 mm1994 · driest 43 mm in 2003	36
April	31.1°C11 Apr 1995	-7.2°C8 Apr 2007	89 mm17 Apr 1998	257 mm1998 · driest 53 mm in 2021	35
May	32.8°C26 May 1991	-1.1°C10 May 2020	69 mm28 May 2017	228 mm2024 · driest 32 mm in 2007	36
June	37.8°C29 Jun 2012	5.6°C2 Jun 2003	57 mm10 Jun 2021	202 mm2013 · driest 42 mm in 1990	36
July	38.9°C1 Jul 2012	5.6°C19 Jul 2014	83 mm8 Jul 2022	380 mm2022 · driest 46 mm in 1997	35
August	35.6°C1 Aug 1999	8.9°C31 Aug 1999	74 mm18 Aug 2021	232 mm2010 · driest 36 mm in 1997	34
September	36.1°C15 Sep 1998	0.0°C28 Sep 2022	88 mm27 Sep 2009	280 mm2024 · driest 7 mm in 2019	35
October	32.8°C8 Oct 2007	-6.7°C29 Oct 1993	61 mm24 Oct 2017	185 mm2014 · driest 17 mm in 2024	34
November	28.3°C4 Nov 2003	-11.7°C22 Nov 2000	71 mm11 Nov 2002	195 mm2011 · driest 27 mm in 2012	35
December	23.9°C6 Dec 2001	-23.3°C24 Dec 2022	83 mm1 Dec 1996	314 mm1991 · driest 52 mm in 1994	36

Typical days per month at BIG STONE GAP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	23	4	2
February	0	0	20	4	1
March	1	0	15	5	<1
April	7	<1	5	5	0
May	17	2	<1	4	0
June	25	10	0	4	0
July	29	15	0	5	0
August	29	13	0	4	0
September	21	7	0	3	0
October	8	<1	4	3	0
November	<1	0	16	3	<1
December	0	0	22	5	<1

How often, not how much — every day in BIG STONE GAP’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	<1%	34%	14%	44%	3.9–9.7°C
February	3%	37%	16%	54%	6.9–12.4°C
March	16%	37%	15%	50%	11.3–17.6°C
April	40%	35%	15%	49%	17.9–21.9°C
May	53%	39%	14%	54%	22.5–26.3°C
June	63%	36%	14%	47%	26.3–29.3°C
July	60%	40%	17%	56%	28.1–30.6°C
August	67%	33%	13%	42%	27.8–30.5°C
September	70%	28%	11%	32%	24.7–29.0°C
October	51%	24%	9%	26%	19.0–22.5°C
November	17%	29%	10%	34%	10.8–18.0°C
December	<1%	36%	18%	49%	7.0–12.6°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.

1990Each stripe is one year’s mean temperature against the 34-year average. Warmest: 2024. Coolest: 1996.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4744575
NOAA station: USC00440735 · BIG STONE GAP
Station distance: 5.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 36.91°, 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 BIG STONE GAP is what differs

Big Stone Gap→Keokee→Osaka→Duffield→Clinchport→Clover→

Or put two places side by side: Appalachia vs Big Stone Gap

Best time to visitAppalachia.