United States · 1991–2020

Best time to visit
Apison.

October leads for comfortable weather in Apison: typically 23.3°C by day, 10.6°C at night, with 91 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high23.3°C

Typical low10.6°C

Rain in October91 mm

Comfort

October

October · May · April

79climate match

Beach

August

August · September · June

75climate match

Outdoors

October

October · April · March

76climate match

The weakest month is January, scoring 11 against October’s 79 — days reach only 10.5°C, 13° below the 24°C the score treats as ideal, and nights drop to 0.1°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

1110.5° / 0.1°

Feb

2213.1° / 1.8°

Mar

4217.8° / 5.5°

Apr

7023° / 9.8°

May

7527.1° / 14.8°

Jun

5430.8° / 19.4°

Jul

4132.4° / 21.4°

Aug

5032.2° / 21°

Sep

6629.1° / 17.4°

Oct

7923.3° / 10.6°

Nov

4116.7° / 4.4°

Dec

1711.9° / 1.6°

Monthly climate evidence for Apison — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	10.5°C	0.1°C	128 mm	8.6	10 h 02	11	Strong coverage
February	13.1°C	1.8°C	128 mm	8.7	10 h 52	22	Strong coverage
March	17.8°C	5.5°C	136 mm	9.7	11 h 52	42	Strong coverage
April	23°C	9.8°C	124 mm	8.9	13 h 01	70	Strong coverage
May	27.1°C	14.8°C	100 mm	8.8	13 h 59	75	Strong coverage
June	30.8°C	19.4°C	106 mm	9.7	14 h 30	54	Strong coverage
July	32.4°C	21.4°C	129 mm	9.7	14 h 18	41	Strong coverage
August	32.2°C	21°C	93 mm	7.8	13 h 28	50	Strong coverage
September	29.1°C	17.4°C	108 mm	6.3	12 h 21	66	Strong coverage
October	23.3°C	10.6°C	91 mm	6.1	11 h 14	79	Strong coverage
November	16.7°C	4.4°C	122 mm	7.7	10 h 17	41	Strong coverage
December	11.9°C	1.6°C	133 mm	9.5	9 h 49	17	Strong coverage

What has changed

Apison runs +1.7°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

+2.1

Feb

+3.0

Mar

+2.0

Apr

+1.1

May

+1.4

Jun

+1.5

Jul

+1.3

Aug

+0.9

Sep

+1.6

Oct

+1.6

Nov

+1.2

Dec

+2.7

October daytime highs, 2011–2025. Last recorded: 23.8°C.

Records at CHATTANOOGA AP, 1938–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.6°C11 Jan 1949	-25.0°C26 Jan 1940	96 mm6 Jan 2009	312 mm1947 · driest 23 mm in 1986	88
February	27.8°C22 Feb 2023	-17.2°C18 Feb 1958	88 mm28 Feb 2018	296 mm1939 · driest 16 mm in 1941	88
March	31.1°C25 Mar 2007	-13.3°C5 Mar 1960	157 mm27 Mar 1994	414 mm1980 · driest 30 mm in 1967	88
April	33.9°C30 Apr 1942	-3.9°C3 Apr 1992	94 mm8 Apr 1938	303 mm1964 · driest 11 mm in 1942	89
May	37.2°C29 May 1941	1.1°C4 May 1971	87 mm2 May 1964	305 mm2025 · driest 14 mm in 1941	89
June	41.7°C30 Jun 2012	5.0°C1 Jun 1972	123 mm15 Jun 1949	239 mm1949 · driest 16 mm in 1988	89
July	41.7°C1 Jul 2012	10.6°C7 Jul 1972	118 mm20 Jul 1979	303 mm1994 · driest 5 mm in 1957	89
August	40.6°C4 Aug 1947	10.0°C31 Aug 1946	163 mm12 Aug 2025	292 mm2021 · driest 0 mm in 2011	88
September	39.4°C13 Sep 2019	2.2°C30 Sep 1967	241 mm5 Sep 2011	360 mm1977 · driest 3 mm in 2023	88
October	37.8°C3 Oct 2019	-5.6°C30 Oct 1952	93 mm8 Oct 2017	252 mm1949 · driest 2 mm in 2016	88
November	30.0°C1 Nov 2016	-15.6°C25 Nov 1950	115 mm28 Nov 1948	345 mm1948 · driest 18 mm in 1939	88
December	25.6°C7 Dec 1951	-18.9°C25 Dec 1983	123 mm28 Dec 1942	348 mm1961 · driest 22 mm in 1965	88

Typical days per month at CHATTANOOGA AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	17	4	<1
February	<1	0	12	4	1
March	4	<1	5	5	<1
April	12	2	<1	4	0
May	23	9	0	3	0
June	29	21	0	4	0
July	31	26	0	4	0
August	31	25	0	3	0
September	26	14	0	3	0
October	13	2	<1	3	0
November	1	0	7	4	0
December	<1	0	15	4	<1

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 79); on 2011–2025 it is October (85). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in CHATTANOOGA 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%	30%	14%	35%	6.7–13.4°C
February	9%	32%	16%	38%	8.7–15.7°C
March	27%	32%	15%	40%	14.0–20.2°C
April	55%	28%	12%	31%	20.7–24.8°C
May	69%	29%	11%	33%	24.8–28.8°C
June	70%	30%	11%	38%	28.5–32.7°C
July	68%	32%	14%	38%	30.2–34.1°C
August	75%	25%	10%	27%	30.0–34.0°C
September	78%	21%	9%	19%	26.4–31.0°C
October	64%	19%	8%	17%	20.9–25.5°C
November	23%	26%	12%	28%	14.0–19.0°C
December	4%	30%	14%	35%	8.2–14.0°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.

1939Each stripe is one year’s mean temperature against the 87-year average. Warmest: 2024. Coolest: 1969.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4602916
NOAA station: USW00013882 · CHATTANOOGA AP
Station distance: 16.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 35.02°, 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 CHATTANOOGA AP is what differs

East Chattanooga→East Ridge→East Brainerd→Red Bank→Collegedale→Harrison→

Or put two places side by side: Apison vs East Chattanooga

Best time to visitApison.

October

August

October

The whole year,without the guesswork.

Apison runs +1.7°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Apison.

The whole year,
without the guesswork.

Apison runs +1.7°C
on the 1961–1990 baseline.

Nearby, measured,
and named.