United States · 1991–2020

Best time to visit
Spiro.

October leads for comfortable weather in Spiro: typically 24.1°C by day, 10.8°C at night, with 112 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high24.1°C

Typical low10.8°C

Rain in October112 mm

Comfort

October

October · April · May

78climate match

Beach

September

September · June · August

72climate match

Outdoors

March

March · April · October

71climate match

The weakest month is January, scoring 18 against October’s 78 — days reach only 10.4°C, 14° below the 24°C the score treats as ideal, and nights drop to -1.1°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

1810.4° / -1.1°

Feb

3213.3° / 1°

Mar

5118.4° / 5.5°

Apr

7223.3° / 10.1°

May

6827.2° / 15.5°

Jun

5031.6° / 20.4°

Jul

4334.2° / 22.5°

Aug

4434° / 21.8°

Sep

6430° / 17.5°

Oct

7824.1° / 10.8°

Nov

4717.2° / 4.6°

Dec

2311.5° / 0.5°

Monthly climate evidence for Spiro — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	10.4°C	-1.1°C	74 mm	5.7	10 h 01	18	Strong coverage
February	13.3°C	1°C	68 mm	5.9	10 h 51	32	Strong coverage
March	18.4°C	5.5°C	99 mm	7.8	11 h 52	51	Strong coverage
April	23.3°C	10.1°C	124 mm	7.8	13 h 02	72	Strong coverage
May	27.2°C	15.5°C	143 mm	8.9	14 h	68	Strong coverage
June	31.6°C	20.4°C	116 mm	7.4	14 h 31	50	Strong coverage
July	34.2°C	22.5°C	84 mm	6	14 h 19	43	Strong coverage
August	34°C	21.8°C	91 mm	6.2	13 h 29	44	Strong coverage
September	30°C	17.5°C	103 mm	5.9	12 h 21	64	Strong coverage
October	24.1°C	10.8°C	112 mm	7	11 h 14	78	Strong coverage
November	17.2°C	4.6°C	98 mm	6.1	10 h 16	47	Strong coverage
December	11.5°C	0.5°C	88 mm	6.1	9 h 47	23	Strong coverage

What has changed

Spiro runs +1.3°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

+2.0

Feb

+1.6

Mar

+1.8

Apr

+0.2

May

+0.5

Jun

+1.7

Jul

+1.0

Aug

+0.4

Sep

+1.9

Oct

+1.0

Nov

+1.1

Dec

+2.4

October daytime highs, 2011–2025. Last recorded: 26.0°C.

Records at FT SMITH RGNL AP, 1945–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	27.2°C19 Jan 1952	-23.3°C11 Jan 1977	123 mm24 Jan 1949	288 mm1949 · driest 5 mm in 1986	81
February	31.1°C23 Feb 2017	-22.8°C2 Feb 1951	82 mm13 Feb 1949	202 mm1951 · driest 4 mm in 1947	81
March	35.0°C22 Mar 2026	-13.9°C11 Mar 1948	118 mm3 Mar 2008	268 mm2008 · driest 13 mm in 2007	81
April	35.6°C18 Apr 2006	-5.6°C3 Apr 1975	130 mm3 Apr 1964	262 mm1957 · driest 14 mm in 1989	81
May	36.7°C29 May 1951	1.7°C4 May 1954	120 mm12 May 2011	504 mm2015 · driest 20 mm in 1970	81
June	41.1°C27 Jun 2012	8.3°C1 Jun 1972	116 mm7 Jun 2022	280 mm2022 · driest 10 mm in 1954	81
July	43.9°C13 Jul 1954	10.0°C6 Jul 1972	146 mm23 Jul 1960	264 mm1960 · driest 0 mm in 2001	81
August	46.1°C3 Aug 2011	10.6°C13 Aug 1967	129 mm6 Aug 1971	297 mm2019 · driest 0 mm in 2000	80
September	42.8°C2 Sep 2000	0.6°C29 Sep 1967	113 mm21 Sep 2018	228 mm1974 · driest 0 mm in 2017	80
October	35.6°C1 Oct 1953	-5.6°C29 Oct 1952	145 mm3 Oct 2007	306 mm1951 · driest 0 mm in 1964	81
November	31.7°C18 Nov 2025	-13.3°C29 Nov 1976	173 mm24 Nov 1973	356 mm1946 · driest 7 mm in 2017	81
December	28.9°C27 Dec 2025	-20.6°C23 Dec 1989	143 mm27 Dec 2015	275 mm2015 · driest 2 mm in 2025	81

Typical days per month at FT SMITH RGNL AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	<1	0	20	2	<1
February	<1	0	13	2	<1
March	5	<1	5	3	<1
April	13	2	<1	4	0
May	23	10	0	4	0
June	29	22	0	3	0
July	31	28	0	3	0
August	31	27	0	3	0
September	26	16	0	3	0
October	15	5	<1	3	0
November	3	<1	7	3	0
December	<1	0	16	3	<1

How often, not how much — every day in FT SMITH RGNL 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	7%	19%	7%	17%	7.1–13.0°C
February	16%	22%	8%	21%	8.9–16.6°C
March	35%	25%	10%	26%	14.8–20.8°C
April	58%	27%	12%	30%	20.9–25.6°C
May	69%	29%	14%	33%	25.0–28.7°C
June	76%	24%	11%	24%	29.5–33.8°C
July	81%	19%	8%	18%	32.0–36.5°C
August	82%	18%	8%	16%	31.2–36.5°C
September	79%	21%	10%	20%	27.4–32.8°C
October	68%	20%	10%	22%	22.4–26.0°C
November	30%	19%	10%	16%	14.1–19.9°C
December	9%	19%	9%	17%	8.8–14.4°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.

1946Each stripe is one year’s mean temperature against the 80-year average. Warmest: 2012. Coolest: 1979.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4551934
NOAA station: USW00013964 · FT SMITH RGNL AP
Station distance: 25.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 35.24°, 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 FT SMITH RGNL AP is what differs

Fort Smith→Van Buren→Greenwood→Barling→Pocola→Roland→

Or put two places side by side: Spiro vs Fort Smith

Best time to visitSpiro.