United States · 1991–2020

Best time to visit
Signal Mountain.

May leads for comfortable weather in Signal Mountain: typically 23.2°C by day, 14.3°C at night, with 111 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high23.2°C

Typical low14.3°C

Rain in May111 mm

Comfort

May

May · September · June

80climate match

Beach

August

August · July · June

78climate match

Outdoors

October

October · April · May

81climate match

The weakest month is January, scoring 5 against May’s 80 — days reach only 7.2°C, 17° 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

57.2° / -1.8°

Feb

59.3° / 0°

Mar

2714.2° / 3.9°

Apr

5519.6° / 9.1°

May

8023.2° / 14.3°

Jun

7026.7° / 18.3°

Jul

6028.3° / 20°

Aug

6528.2° / 19.8°

Sep

7625.2° / 16.9°

Oct

6519.6° / 10.8°

Nov

3213.9° / 4.9°

Dec

58.9° / 0.5°

Monthly climate evidence for Signal Mountain — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	7.2°C	-1.8°C	134 mm	9.3	10 h 02	5	Good coverage
February	9.3°C	0°C	145 mm	9.5	10 h 52	5	Strong coverage
March	14.2°C	3.9°C	135 mm	10.2	11 h 52	27	Strong coverage
April	19.6°C	9.1°C	136 mm	9.4	13 h 01	55	Good coverage
May	23.2°C	14.3°C	111 mm	9.3	13 h 59	80	Good coverage
June	26.7°C	18.3°C	105 mm	9.3	14 h 30	70	Good coverage
July	28.3°C	20°C	118 mm	9.1	14 h 18	60	Good coverage
August	28.2°C	19.8°C	95 mm	8.1	13 h 28	65	Good coverage
September	25.2°C	16.9°C	126 mm	7.3	12 h 21	76	Strong coverage
October	19.6°C	10.8°C	105 mm	6.8	11 h 14	65	Good coverage
November	13.9°C	4.9°C	120 mm	7.8	10 h 16	32	Good coverage
December	8.9°C	0.5°C	139 mm	9.5	9 h 48	5	Strong coverage

Records at LOOKOUT MTN-POINT PARK, 1995–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.7°C30 Jan 2002	-18.9°C7 Jan 2014	77 mm19 Jan 2001	288 mm1999 · driest 23 mm in 2005	30
February	24.4°C24 Feb 2023	-20.6°C4 Feb 1996	97 mm6 Feb 2020	371 mm2020 · driest 41 mm in 2011	31
March	27.8°C26 Mar 2007	-14.4°C8 Mar 1996	75 mm6 Mar 1996	320 mm2011 · driest 26 mm in 2005	31
April	28.9°C6 Apr 2010	-3.3°C3 Apr 2021	101 mm23 Apr 2018	267 mm2018 · driest 43 mm in 2004	30
May	30.6°C31 May 2016	3.3°C1 May 1996	91 mm7 May 2003	332 mm2025 · driest 40 mm in 2000	30
June	37.8°C26 Jun 2010	8.9°C1 Jun 2021	90 mm4 Jun 2021	251 mm2017 · driest 6 mm in 2009	30
July	37.2°C1 Jul 2012	13.9°C16 Jul 2014	99 mm2 Jul 2003	259 mm2003 · driest 33 mm in 1997	30
August	36.7°C25 Aug 2007	11.7°C13 Aug 2004	79 mm12 Aug 1996	226 mm2021 · driest 7 mm in 2011	29
September	33.9°C3 Sep 2011	6.7°C26 Sep 2000	213 mm17 Sep 2004	335 mm2009 · driest 12 mm in 2008	30
October	33.9°C4 Oct 2019	-2.2°C25 Oct 2006	95 mm29 Oct 2020	245 mm2017 · driest 0 mm in 2013	28
November	27.2°C2 Nov 2016	-9.4°C13 Nov 2019	105 mm28 Nov 2011	201 mm2000 · driest 26 mm in 2021	30
December	22.8°C12 Dec 2007	-21.1°C23 Dec 2022	75 mm9 Dec 2018	247 mm2008 · driest 7 mm in 2005	31

Typical days per month at LOOKOUT MTN-POINT PARK, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	18	4
February	0	0	14	4
March	<1	0	8	5
April	5	0	1	4
May	13	<1	0	3
June	21	4	0	4
July	27	9	0	4
August	26	9	0	3
September	16	3	0	3
October	4	<1	<1	3
November	<1	0	6	3
December	0	0	14	4

How often, not how much — every day in LOOKOUT MTN-POINT PARK’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%	30%	14%	39%	4.6–10.4°C
February	2%	34%	16%	44%	6.7–13.2°C
March	15%	32%	16%	38%	10.7–17.8°C
April	40%	31%	15%	41%	17.1–22.3°C
May	58%	32%	12%	38%	21.7–25.2°C
June	67%	31%	12%	40%	25.0–29.0°C
July	69%	31%	12%	35%	26.8–30.0°C
August	73%	27%	11%	31%	25.9–30.7°C
September	71%	24%	11%	24%	23.0–27.6°C
October	45%	21%	9%	23%	16.9–21.8°C
November	10%	26%	11%	30%	10.5–16.5°C
December	1%	30%	15%	39%	5.2–12.2°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.

1996Each stripe is one year’s mean temperature against the 25-year average. Warmest: 2016. Coolest: 1996.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4657633
NOAA station: USC00405431 · LOOKOUT MTN-POINT PARK
Station distance: 12.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude 35.12°, 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 LOOKOUT MTN-POINT PARK is what differs

Lookout Mountain→Lookout Mountain→Gerber (historical)→Rock City→West Brow→Applewood→

Or put two places side by side: Signal Mountain vs Lookout Mountain

Best time to visitSignal Mountain.

May

August

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Signal Mountain.

The whole year,
without the guesswork.

Nearby, measured,
and named.