United States · 1991–2020

Best time to visit
Knoxville.

October leads for comfortable weather in Knoxville: typically 23.1°C by day, 10.5°C at night, with 99 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high23.1°C

Typical low10.5°C

Rain in October99 mm

Comfort

October

October · May · September

77climate match

Beach

August

August · September · June

76climate match

Outdoors

October

October · April · March

75climate match

The weakest month is January, scoring 10 against October’s 77 — days reach only 9.2°C, 15° below the 24°C the score treats as ideal, and nights drop to -1.7°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

109.2° / -1.7°

Feb

2311.6° / 0°

Mar

4016.7° / 4.4°

Apr

6922.2° / 9.3°

May

7425.9° / 14.6°

Jun

5630.6° / 19.5°

Jul

4533° / 21.6°

Aug

4933.5° / 21.2°

Sep

7029.3° / 16.8°

Oct

7723.1° / 10.5°

Nov

3816° / 4.6°

Dec

1310.2° / -0.2°

Monthly climate evidence for Knoxville — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	9.2°C	-1.7°C	91 mm	6.3	10 h 00	10	Good coverage
February	11.6°C	0°C	76 mm	6.5	10 h 51	23	Good coverage
March	16.7°C	4.4°C	121 mm	8.1	11 h 52	40	Good coverage
April	22.2°C	9.3°C	116 mm	6.8	13 h 02	69	Good coverage
May	25.9°C	14.6°C	134 mm	9.1	14 h 00	74	Good coverage
June	30.6°C	19.5°C	104 mm	7.5	14 h 32	56	Good coverage
July	33°C	21.6°C	105 mm	7	14 h 19	45	Good coverage
August	33.5°C	21.2°C	78 mm	5.7	13 h 29	49	Good coverage
September	29.3°C	16.8°C	87 mm	5.4	12 h 21	70	Good coverage
October	23.1°C	10.5°C	99 mm	6.4	11 h 14	77	Good coverage
November	16°C	4.6°C	132 mm	7.2	10 h 15	38	Good coverage
December	10.2°C	-0.2°C	107 mm	6.9	9 h 47	13	Good coverage

Records at CLARKSVILLE 2N, 1993–2016
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.9°C30 Jan 2002	-14.4°C9 Jan 2010	130 mm5 Jan 1998	224 mm1998 · driest 14 mm in 2003	21
February	26.7°C16 Feb 2005	-16.1°C4 Feb 1996	64 mm1 Feb 2002	227 mm2001 · driest 18 mm in 1996	23
March	31.1°C23 Mar 1995	-12.2°C3 Mar 2002	130 mm19 Mar 2008	348 mm2008 · driest 35 mm in 2007	23
April	35.0°C19 Apr 2006	-3.9°C8 Apr 2007	83 mm8 Apr 2002	234 mm2011 · driest 20 mm in 2016	23
May	35.6°C31 May 2003	2.2°C3 May 2013	89 mm28 May 1998	381 mm2015 · driest 11 mm in 2012	23
June	41.7°C26 Jun 2012	11.1°C8 Jun 1998	102 mm16 Jun 2004	248 mm2000 · driest 12 mm in 2012	23
July	41.7°C21 Jul 2012	12.8°C5 Jul 2013	100 mm9 Jul 2016	205 mm1994 · driest 12 mm in 2011	23
August	44.4°C4 Aug 2011	12.2°C26 Aug 2015	76 mm14 Aug 2002	160 mm2013 · driest 12 mm in 1995	23
September	41.7°C1 Sep 2000	4.4°C25 Sep 1995	88 mm4 Sep 2008	201 mm2008 · driest 0 mm in 2016	23
October	33.9°C1 Oct 1998	-1.1°C29 Oct 2008	86 mm6 Oct 1998	292 mm2009 · driest 1 mm in 2005	23
November	30.6°C5 Nov 2003	-7.8°C18 Nov 2014	136 mm5 Nov 1994	325 mm1996 · driest 17 mm in 2007	23
December	26.1°C6 Dec 1998	-12.8°C9 Dec 2005	107 mm28 Dec 2015	229 mm2015 · driest 11 mm in 2005	23

Typical days per month at CLARKSVILLE 2N, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	21	3	<1
February	<1	0	16	3	<1
March	3	0	7	4	<1
April	10	1	<1	4	0
May	20	6	0	4	0
June	29	20	0	3	0
July	31	26	0	3	0
August	30	26	0	3	0
September	26	14	0	3	0
October	13	3	<1	3	0
November	2	0	7	4	0
December	<1	0	18	3	<1

How often, not how much — every day in CLARKSVILLE 2N’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	4%	20%	9%	17%	7.4–11.1°C
February	11%	23%	9%	25%	8.9–14.1°C
March	29%	26%	13%	27%	13.9–18.9°C
April	58%	23%	12%	20%	20.5–24.0°C
May	66%	30%	12%	35%	24.0–27.5°C
June	75%	25%	10%	27%	28.8–33.1°C
July	77%	23%	10%	21%	30.8–35.0°C
August	82%	18%	8%	16%	30.7–36.3°C
September	81%	18%	9%	14%	27.2–31.8°C
October	61%	21%	9%	24%	21.4–24.4°C
November	22%	24%	13%	23%	12.6–18.3°C
December	3%	22%	11%	23%	7.9–12.4°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.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4117661
NOAA station: USC00031459 · CLARKSVILLE 2N
Station distance: 16.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 35.38°, 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 CLARKSVILLE 2N is what differs

Clarksville→Lamar→Morrison Bluff→Bend→Bushtown (historical)→Dublin→

Or put two places side by side: Knoxville vs Clarksville

Best time to visitKnoxville.

October

August

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Knoxville.

The whole year,
without the guesswork.

Nearby, measured,
and named.