United States · 1991–2020

Best time to visit
Clarksville.

September leads for comfortable weather in Clarksville: typically 28.7°C by day, 15.7°C at night, with 89 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high28.7°C

Typical low15.7°C

Rain in September89 mm

Comfort

September

September · May · October

72climate match

Beach

August

August · September · June

73climate match

Outdoors

October

October · April · November

73climate match

The weakest month is January, scoring 5 against September’s 72 — days reach only 8.3°C, 16° below the 24°C the score treats as ideal.

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

58.3° / -2.1°

Feb

1311° / -0.5°

Mar

3616.2° / 3.6°

Apr

6322.1° / 8.6°

May

7026.4° / 14°

Jun

5630.4° / 18.5°

Jul

4532.3° / 20.8°

Aug

5332° / 19.9°

Sep

7228.7° / 15.7°

Oct

7022.6° / 9°

Nov

3715.6° / 3.1°

Dec

810.1° / -0.2°

Monthly climate evidence for Clarksville — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	8.3°C	-2.1°C	101 mm	9	9 h 55	5	Strong coverage
February	11°C	-0.5°C	117 mm	8.6	10 h 48	13	Strong coverage
March	16.2°C	3.6°C	122 mm	9.7	11 h 51	36	Strong coverage
April	22.1°C	8.6°C	131 mm	9.9	13 h 04	63	Strong coverage
May	26.4°C	14°C	135 mm	9.9	14 h 05	70	Strong coverage
June	30.4°C	18.5°C	117 mm	8.7	14 h 38	56	Strong coverage
July	32.3°C	20.8°C	121 mm	8.6	14 h 25	45	Strong coverage
August	32°C	19.9°C	89 mm	7.7	13 h 33	53	Strong coverage
September	28.7°C	15.7°C	89 mm	6.5	12 h 22	72	Strong coverage
October	22.6°C	9°C	109 mm	7	11 h 11	70	Strong coverage
November	15.6°C	3.1°C	102 mm	7.9	10 h 10	37	Strong coverage
December	10.1°C	-0.2°C	127 mm	9.4	9 h 41	8	Strong coverage

What has changed

Clarksville runs +1.1°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

+1.6

Feb

+2.0

Mar

+1.2

Apr

+0.4

May

+0.8

Jun

+0.9

Jul

+0.6

Aug

+0.5

Sep

+1.2

Oct

+0.7

Nov

+0.3

Dec

+2.4

September daytime highs, 2011–2025. Last recorded: 31.5°C.

Records at CLARKSVILLE WWTP, 1890–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	27.8°C24 Jan 1943	-28.9°C16 Jan 1982	159 mm8 Jan 1920	558 mm1937 · driest 19 mm in 2026	134
February	27.8°C23 Feb 1996	-25.6°C13 Feb 1899	100 mm14 Feb 2025	315 mm2019 · driest 13 mm in 1947	133
March	34.4°C24 Mar 1929	-17.8°C3 Mar 1980	154 mm12 Mar 1975	417 mm1975 · driest 19 mm in 1918	134
April	34.4°C24 Apr 1925	-7.8°C20 Apr 2022	152 mm27 Apr 2013	330 mm2011 · driest 21 mm in 1986	134
May	37.2°C21 May 1941	0.0°C2 May 1978	125 mm26 May 2024	380 mm2024 · driest 6 mm in 1951	133
June	42.8°C18 Jun 1944	5.6°C1 Jun 1966	160 mm18 Jun 1934	390 mm1928 · driest 12 mm in 1988	132
July	43.3°C12 Jul 1930	8.3°C5 Jul 1968	104 mm7 Jul 2016	345 mm2016 · driest 6 mm in 1901	130
August	42.8°C8 Aug 1930	6.7°C29 Aug 1986	150 mm20 Aug 1891	264 mm1891 · driest 2 mm in 2007	129
September	44.4°C7 Sep 1925	-1.7°C23 Sep 1891	175 mm26 Sep 2002	319 mm1979 · driest 0 mm in 1897	133
October	36.7°C2 Oct 2019	-6.7°C24 Oct 1981	102 mm13 Oct 2001	277 mm1919 · driest 0 mm in 1908	134
November	31.1°C1 Nov 2016	-18.9°C25 Nov 1950	130 mm17 Nov 1906	285 mm1948 · driest 23 mm in 1910	131
December	26.7°C31 Dec 1951	-24.4°C22 Dec 1989	106 mm7 Dec 1924	319 mm1990 · driest 24 mm in 1896	132

Typical days per month at CLARKSVILLE WWTP, 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	4	<1
March	4	<1	9	4	0
April	11	2	2	4	0
May	21	8	0	4	0
June	28	19	0	4	0
July	30	25	0	4	0
August	30	24	0	3	0
September	24	13	0	3	0
October	12	2	1	3	0
November	2	0	10	3	0
December	<1	0	18	4	0

How often, not how much — every day in CLARKSVILLE WWTP’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%	31%	13%	36%	5.1–12.0°C
February	7%	32%	13%	38%	6.8–14.2°C
March	23%	33%	15%	41%	12.5–19.5°C
April	46%	33%	14%	40%	19.7–24.5°C
May	63%	32%	13%	37%	24.1–28.3°C
June	72%	28%	12%	29%	28.4–33.3°C
July	73%	27%	12%	28%	30.8–34.8°C
August	76%	24%	10%	24%	29.9–34.2°C
September	76%	23%	10%	19%	26.4–31.8°C
October	59%	20%	9%	18%	20.3–25.9°C
November	22%	26%	11%	27%	13.0–18.2°C
December	3%	30%	13%	34%	6.9–13.1°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.

1893Each stripe is one year’s mean temperature against the 118-year average. Warmest: 1921. Coolest: 1976.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4613868
NOAA station: USC00401790 · CLARKSVILLE WWTP
Station distance: 1.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 36.53°, 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 WWTP is what differs

Guthrie→Darnell→Hadensville→Balsam Estates→Barkwood→Bel-Air Estates→

Or put two places side by side: Clarksville vs Guthrie

Best time to visitClarksville.