United States · 1991–2020

Best time to visit
Decatur.

September leads for comfortable weather in Decatur: typically 28.8°C by day, 15°C at night, with 114 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high28.8°C

Typical low15°C

Rain in September114 mm

Comfort

September

September · October · May

70climate match

Beach

August

August · June · July

70climate match

Outdoors

October

October · April · March

72climate match

The weakest month is January, scoring 12 against September’s 70 — days reach only 9.2°C, 15° below the 24°C the score treats as ideal, and nights drop to -2.6°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

129.2° / -2.6°

Feb

2712° / -0.5°

Mar

4417.2° / 4.1°

Apr

6622.3° / 8.6°

May

6726.1° / 13.4°

Jun

5730.5° / 18°

Jul

4733.4° / 19.9°

Aug

5333.2° / 19.1°

Sep

7028.8° / 15°

Oct

6922.6° / 9.1°

Nov

3915.7° / 3.5°

Dec

1710.3° / -0.9°

Monthly climate evidence for Decatur — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	9.2°C	-2.6°C	72 mm	5.4	9 h 56	12	Strong coverage
February	12°C	-0.5°C	61 mm	5.4	10 h 48	27	Strong coverage
March	17.2°C	4.1°C	104 mm	8.1	11 h 51	44	Strong coverage
April	22.3°C	8.6°C	118 mm	8.2	13 h 04	66	Strong coverage
May	26.1°C	13.4°C	156 mm	9.4	14 h 05	67	Strong coverage
June	30.5°C	18°C	119 mm	7.4	14 h 37	57	Strong coverage
July	33.4°C	19.9°C	103 mm	6.7	14 h 24	47	Strong coverage
August	33.2°C	19.1°C	85 mm	6	13 h 32	53	Strong coverage
September	28.8°C	15°C	114 mm	6.3	12 h 22	70	Strong coverage
October	22.6°C	9.1°C	113 mm	7.6	11 h 12	69	Strong coverage
November	15.7°C	3.5°C	98 mm	7.2	10 h 11	39	Strong coverage
December	10.3°C	-0.9°C	81 mm	6	9 h 42	17	Strong coverage

What has changed

Decatur runs +1.4°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

+1.7

Feb

+1.3

Mar

+2.2

Apr

+0.8

May

+0.8

Jun

+2.1

Jul

+1.2

Aug

+0.5

Sep

+1.7

Oct

+0.7

Nov

+1.3

Dec

+2.4

September daytime highs, 2011–2025. Last recorded: 28.1°C.

Records at GRAVETTE, 1898–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.0°C15 Jan 1928	-31.1°C18 Jan 1930	139 mm21 Jan 1904	329 mm1916 · driest 0 mm in 1943	127
February	31.1°C22 Feb 1996	-33.9°C13 Feb 1905	156 mm17 Feb 1938	251 mm1938 · driest 5 mm in 1904	127
March	34.4°C21 Mar 2026	-25.6°C12 Mar 1948	159 mm18 Mar 2008	328 mm2008 · driest 14 mm in 1930	127
April	35.0°C17 Apr 2006	-9.4°C6 Apr 1920	143 mm25 Apr 2011	385 mm2011 · driest 5 mm in 2023	128
May	37.2°C28 May 1953	-4.4°C1 May 1903	135 mm9 May 1943	419 mm1943 · driest 7 mm in 1932	128
June	41.1°C23 Jun 1936	3.9°C2 Jun 1907	104 mm23 Jun 1948	407 mm1935 · driest 18 mm in 1913	129
July	45.6°C19 Jul 1936	6.7°C3 Jul 1924	163 mm31 Jul 1905	418 mm1905 · driest 1 mm in 1934	127
August	45.6°C3 Aug 2011	5.6°C21 Aug 1915	134 mm4 Aug 1931	265 mm2019 · driest 0 mm in 2000	128
September	42.2°C2 Sep 2000	-2.2°C30 Sep 1984	150 mm30 Sep 1986	352 mm1986 · driest 0 mm in 1952	128
October	36.1°C1 Oct 1953	-11.1°C30 Oct 1917	214 mm6 Oct 2019	443 mm2019 · driest 4 mm in 1963	127
November	31.7°C1 Nov 1937	-15.6°C29 Nov 1976	153 mm24 Nov 1973	239 mm1973 · driest 2 mm in 1949	128
December	27.2°C27 Dec 2025	-29.4°C9 Dec 1917	175 mm27 Dec 2015	318 mm2015 · driest 2 mm in 2025	127

Typical days per month at GRAVETTE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	21	2	2
February	<1	0	16	2	1
March	3	<1	9	3	<1
April	11	<1	2	4	0
May	21	6	<1	5	0
June	29	19	0	4	0
July	31	27	0	3	0
August	30	25	0	3	0
September	25	13	<1	3	0
October	12	2	2	3	0
November	1	0	9	3	<1
December	0	0	18	2	1

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 77); on 2011–2025 it is October (74). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in GRAVETTE’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	4%	18%	7%	13%	5.5–11.8°C
February	10%	21%	7%	17%	7.5–14.7°C
March	29%	24%	10%	24%	12.7–19.8°C
April	50%	28%	13%	31%	19.4–24.1°C
May	63%	31%	16%	39%	23.6–27.1°C
June	72%	28%	14%	29%	27.8–32.7°C
July	80%	20%	9%	17%	30.3–35.2°C
August	79%	21%	10%	17%	29.9–35.4°C
September	77%	21%	11%	20%	26.5–31.2°C
October	60%	22%	10%	22%	20.3–25.1°C
November	25%	21%	10%	17%	12.9–18.2°C
December	5%	19%	7%	15%	7.1–12.8°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.

1899Each stripe is one year’s mean temperature against the 117-year average. Warmest: 2012. Coolest: 1903.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4107903
NOAA station: USC00032930 · GRAVETTE
Station distance: 10.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 36.34°, 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 GRAVETTE is what differs

Bella Vista→Gravette→South West City→Sulphur Springs→Hiwasse→Maysville→

Or put two places side by side: Decatur vs Bella Vista

Best time to visitDecatur.