United States · 1991–2020

Best time to visit
Alcoa.

May leads for comfortable weather in Alcoa: typically 26°C by day, 14°C at night, with 105 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high26°C

Typical low14°C

Rain in May105 mm

Comfort

May

May · October · September

76climate match

Beach

August

August · June · September

76climate match

Outdoors

October

October · April · November

83climate match

The weakest month is January, scoring 5 against May’s 76 — days reach only 8.9°C, 15° 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

58.9° / -0.9°

Feb

1511.5° / 0.8°

Mar

3616.2° / 4.5°

Apr

6421.7° / 9.1°

May

7626° / 14°

Jun

5929.7° / 18.5°

Jul

4631.2° / 20.6°

Aug

5630.9° / 19.9°

Sep

7428° / 16.4°

Oct

7522° / 9.6°

Nov

3715.4° / 3.5°

Dec

1110.5° / 0.6°

Monthly climate evidence for Alcoa — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	8.9°C	-0.9°C	121 mm	9.1	9 h 59	5	Strong coverage
February	11.5°C	0.8°C	122 mm	9.7	10 h 50	15	Strong coverage
March	16.2°C	4.5°C	124 mm	10.6	11 h 51	36	Strong coverage
April	21.7°C	9.1°C	120 mm	9	13 h 03	64	Strong coverage
May	26°C	14°C	105 mm	9.4	14 h 02	76	Strong coverage
June	29.7°C	18.5°C	108 mm	9.8	14 h 34	59	Strong coverage
July	31.2°C	20.6°C	133 mm	9.8	14 h 22	46	Strong coverage
August	30.9°C	19.9°C	92 mm	8.1	13 h 31	56	Strong coverage
September	28°C	16.4°C	89 mm	6.2	12 h 22	74	Strong coverage
October	22°C	9.6°C	71 mm	6.4	11 h 13	75	Strong coverage
November	15.4°C	3.5°C	107 mm	7.9	10 h 13	37	Strong coverage
December	10.5°C	0.6°C	127 mm	9.6	9 h 45	11	Strong coverage

What has changed

Alcoa 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

+1.0

Feb

+2.2

Mar

+1.0

Apr

+0.8

May

+0.9

Jun

+1.1

Jul

+1.1

Aug

+0.4

Sep

+1.0

Oct

+1.0

Nov

+0.5

Dec

+2.0

May daytime highs, 2011–2025. Last recorded: 24.0°C.

Records at KNOXVILLE AP, 1910–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.0°C11 Jan 2020	-31.1°C21 Jan 1985	96 mm15 Jan 1954	322 mm2013 · driest 24 mm in 1986	117
February	28.3°C23 Feb 1996	-22.2°C5 Feb 1996	129 mm23 Feb 2019	332 mm2019 · driest 19 mm in 1968	117
March	31.1°C25 Mar 1929	-17.2°C3 Mar 1980	146 mm27 Mar 1994	339 mm1917 · driest 18 mm in 1910	117
April	33.9°C24 Apr 1925	-5.6°C1 Apr 1987	92 mm21 Apr 2006	281 mm1998 · driest 10 mm in 1976	117
May	35.6°C22 May 1941	0.0°C4 May 1986	85 mm30 May 1974	279 mm1974 · driest 18 mm in 1941	117
June	40.6°C30 Jun 2012	6.1°C3 Jun 1956	81 mm12 Jun 1929	301 mm1928 · driest 5 mm in 1944	117
July	40.6°C1 Jul 2012	9.4°C2 Jul 1988	156 mm16 Jul 1917	334 mm1917 · driest 9 mm in 1995	117
August	38.9°C23 Aug 2007	9.4°C31 Aug 1946	83 mm24 Aug 1959	288 mm1920 · driest 20 mm in 1954	116
September	39.4°C5 Sep 1954	2.2°C30 Sep 1967	139 mm5 Sep 2011	233 mm1989 · driest 1 mm in 2019	116
October	35.6°C3 Oct 2019	-4.4°C30 Oct 1910	81 mm14 Oct 1925	242 mm1925 · driest 0 mm in 2000	116
November	29.4°C1 Nov 2016	-15.0°C25 Nov 1950	124 mm30 Nov 2016	263 mm1948 · driest 12 mm in 1917	116
December	26.7°C4 Dec 1982	-21.1°C25 Dec 1983	119 mm30 Dec 1969	296 mm1961 · driest 12 mm in 1965	116

Typical days per month at KNOXVILLE AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	19	4	1
February	<1	0	14	4	1
March	2	0	8	4	<1
April	9	<1	1	4	0
May	20	6	0	4	0
June	28	16	0	4	0
July	30	23	0	5	0
August	30	22	0	3	0
September	24	11	0	3	0
October	9	<1	<1	3	0
November	1	0	9	4	<1
December	<1	0	16	4	<1

How often, not how much — every day in KNOXVILLE AP’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%	32%	14%	40%	5.4–12.4°C
February	6%	34%	14%	43%	7.6–14.5°C
March	22%	34%	14%	43%	12.7–19.4°C
April	48%	30%	12%	36%	19.4–23.6°C
May	64%	31%	11%	38%	23.5–27.9°C
June	69%	31%	12%	38%	27.7–31.7°C
July	69%	31%	13%	37%	29.2–33.1°C
August	74%	27%	10%	29%	28.9–32.7°C
September	77%	21%	8%	18%	25.8–30.5°C
October	59%	20%	8%	19%	19.6–24.0°C
November	18%	26%	11%	28%	12.4–17.8°C
December	3%	30%	13%	38%	7.1–13.0°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 116-year average. Warmest: 2016. Coolest: 1917.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4602181
NOAA station: USW00013891 · KNOXVILLE AP
Station distance: 3.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 35.79°, 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 KNOXVILLE AP is what differs

Maryville→Eagleton Village→Louisville→Wildwood→Rockford→Garland→

Or put two places side by side: Alcoa vs Maryville

Best time to visitAlcoa.

May

August

October

The whole year,without the guesswork.

Alcoa runs +1.1°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Alcoa.

The whole year,
without the guesswork.

Alcoa runs +1.1°C
on the 1961–1990 baseline.

Nearby, measured,
and named.