United States · 1991–2020

Best time to visit
Gray.

September leads for comfortable weather in Gray: typically 27°C by day, 13.7°C at night, with 72 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high27°C

Typical low13.7°C

Rain in September72 mm

Comfort

September

September · May · October

79climate match

Beach

August

August · June · July

71climate match

Outdoors

October

October · April · May

82climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only 8°C, 16° below the 24°C the score treats as ideal, and nights drop to -3°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

58° / -3°

Feb

1010.4° / -1.5°

Mar

3115.1° / 1.9°

Apr

5920.7° / 6.4°

May

7525° / 11.4°

Jun

6728.7° / 16°

Jul

5430.1° / 18.3°

Aug

6329.8° / 17.4°

Sep

7927° / 13.7°

Oct

6821.1° / 6.9°

Nov

3414.7° / 1.3°

Dec

99.6° / -1.5°

Monthly climate evidence for Gray — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	8°C	-3°C	93 mm	9.6	9 h 55	5	Strong coverage
February	10.4°C	-1.5°C	97 mm	10.2	10 h 48	10	Strong coverage
March	15.1°C	1.9°C	101 mm	10.8	11 h 51	31	Strong coverage
April	20.7°C	6.4°C	96 mm	9.5	13 h 04	59	Strong coverage
May	25°C	11.4°C	97 mm	10.4	14 h 05	75	Strong coverage
June	28.7°C	16°C	100 mm	10.6	14 h 38	67	Strong coverage
July	30.1°C	18.3°C	127 mm	11.1	14 h 25	54	Strong coverage
August	29.8°C	17.4°C	96 mm	8.6	13 h 33	63	Strong coverage
September	27°C	13.7°C	72 mm	6.8	12 h 22	79	Strong coverage
October	21.1°C	6.9°C	64 mm	7	11 h 12	68	Strong coverage
November	14.7°C	1.3°C	80 mm	7.7	10 h 11	34	Strong coverage
December	9.6°C	-1.5°C	96 mm	9.5	9 h 41	9	Strong coverage

What has changed

Gray runs +1.5°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

+3.0

Mar

+1.5

Apr

+1.7

May

+1.4

Jun

+1.4

Jul

+1.6

Aug

+0.8

Sep

+1.3

Oct

+1.1

Nov

+0.6

Dec

+2.4

September daytime highs, 2011–2025. Last recorded: 26.2°C.

Records at BRISTOL AP, 1937–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.1°C25 Jan 1950	-29.4°C21 Jan 1985	61 mm15 Jan 2013	254 mm2013 · driest 27 mm in 1940	89
February	27.8°C21 Feb 2018	-26.1°C5 Feb 1996	66 mm6 Feb 2020	266 mm2019 · driest 19 mm in 1968	89
March	29.4°C18 Mar 1943	-18.9°C3 Mar 1980	75 mm27 Mar 1994	243 mm1955 · driest 24 mm in 2016	89
April	32.2°C29 Apr 2017	-6.1°C8 Apr 2007	73 mm19 Apr 2019	192 mm2020 · driest 5 mm in 1976	89
May	34.4°C31 May 2011	-1.1°C4 May 1986	73 mm26 May 1997	247 mm1950 · driest 18 mm in 2015	89
June	39.4°C30 Jun 2012	3.3°C2 Jun 1966	79 mm13 Jun 1954	213 mm2013 · driest 19 mm in 1986	89
July	38.9°C28 Jul 1952	7.2°C23 Jul 1947	72 mm31 Jul 1982	323 mm2012 · driest 17 mm in 1995	89
August	38.3°C18 Aug 1988	6.1°C29 Aug 1986	89 mm7 Aug 2003	288 mm2003 · driest 10 mm in 2007	88
September	37.8°C6 Sep 1954	0.6°C29 Sep 1942	82 mm29 Sep 1944	195 mm2024 · driest 13 mm in 1985	88
October	34.4°C3 Oct 2019	-6.7°C27 Oct 1962	93 mm16 Oct 1964	168 mm2019 · driest 1 mm in 2000	89
November	28.9°C6 Nov 2022	-15.0°C25 Nov 1950	60 mm28 Nov 1948	171 mm2003 · driest 13 mm in 2001	89
December	25.6°C7 Dec 1951	-22.8°C13 Dec 1962	68 mm4 Dec 1993	171 mm1961 · driest 5 mm in 1965	89

Typical days per month at BRISTOL AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	22	3	3
February	<1	0	19	3	3
March	2	0	12	4	1
April	8	<1	4	3	<1
May	18	4	<1	3	0
June	27	12	0	3	0
July	30	18	0	4	0
August	30	16	0	3	0
September	22	8	0	2	0
October	8	<1	3	2	0
November	<1	0	15	3	<1
December	0	0	20	4	2

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 84); on 2011–2025 it is September (81). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in BRISTOL 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	2%	34%	10%	44%	4.1–11.3°C
February	4%	35%	12%	46%	5.6–13.5°C
March	19%	34%	11%	43%	12.0–18.1°C
April	43%	31%	10%	38%	17.9–22.8°C
May	60%	32%	11%	40%	22.5–27.2°C
June	67%	33%	11%	43%	26.8–30.5°C
July	65%	35%	14%	44%	28.2–31.7°C
August	72%	28%	10%	31%	28.0–31.6°C
September	74%	23%	8%	22%	24.8–29.1°C
October	53%	21%	6%	22%	19.0–23.3°C
November	17%	26%	8%	30%	11.9–17.1°C
December	3%	30%	11%	38%	5.8–12.4°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.

1938Each stripe is one year’s mean temperature against the 88-year average. Warmest: 2024. Coolest: 1996.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4625945
NOAA station: USW00013877 · BRISTOL AP
Station distance: 9.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 36.42°, 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 BRISTOL AP is what differs

Oak Grove→Spurgeon→Blountville→Walnut Hill→Bluff City→Tri-Cities→

Or put two places side by side: Gray vs Oak Grove

Best time to visitGray.