United States · 1991–2020

Best time to visit
Marion.

October leads for comfortable weather in Marion: typically 25.8°C by day, 11.5°C at night, with 98 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high25.8°C

Typical low11.5°C

Rain in October98 mm

Comfort

October

October · April · May

77climate match

Beach

September

September · May · August

75climate match

Outdoors

November

November · March · October

75climate match

The weakest month is January, scoring 25 against October’s 77 — days reach only 14.4°C, 10° below the 24°C the score treats as ideal, and nights drop to 1.8°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

2514.4° / 1.8°

Feb

3817.1° / 3.7°

Mar

5621.2° / 7.1°

Apr

7025.1° / 10.8°

May

6829° / 15.7°

Jun

4732.2° / 20°

Jul

3733.5° / 21.6°

Aug

4333.4° / 21.2°

Sep

6231.1° / 18.1°

Oct

7725.8° / 11.5°

Nov

5619.8° / 5.5°

Dec

3215.6° / 3.1°

Monthly climate evidence for Marion — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	14.4°C	1.8°C	142 mm	8.5	10 h 14	25	Strong coverage
February	17.1°C	3.7°C	136 mm	8.2	10 h 59	38	Strong coverage
March	21.2°C	7.1°C	144 mm	8.4	11 h 53	56	Strong coverage
April	25.1°C	10.8°C	141 mm	7.4	12 h 56	70	Strong coverage
May	29°C	15.7°C	107 mm	7.3	13 h 48	68	Strong coverage
June	32.2°C	20°C	119 mm	8.6	14 h 16	47	Strong coverage
July	33.5°C	21.6°C	130 mm	9.8	14 h 05	37	Strong coverage
August	33.4°C	21.2°C	111 mm	7.8	13 h 20	43	Strong coverage
September	31.1°C	18.1°C	81 mm	5.6	12 h 20	62	Strong coverage
October	25.8°C	11.5°C	98 mm	5.5	11 h 19	77	Strong coverage
November	19.8°C	5.5°C	107 mm	6.8	10 h 27	56	Strong coverage
December	15.6°C	3.1°C	134 mm	8.3	10 h 02	32	Strong coverage

What has changed

Marion runs +0.8°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

+1.3

Feb

+2.0

Mar

+1.3

Apr

0.0

May

+0.4

Jun

+0.5

Jul

+0.2

Aug

+0.3

Sep

+0.8

Oct

+1.1

Nov

+0.1

Dec

+1.4

October daytime highs, 2011–2025. Last recorded: 27.5°C.

Records at MERIDIAN KEY FLD, 1944–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	28.3°C10 Jan 1949	-17.8°C12 Jan 1962	133 mm27 Jan 1994	335 mm1998 · driest 31 mm in 1986	82
February	30.0°C22 Feb 2018	-13.3°C2 Feb 1951	190 mm15 Feb 1990	405 mm1990 · driest 36 mm in 2026	82
March	32.2°C31 Mar 1974	-9.4°C3 Mar 1980	165 mm3 Mar 1979	419 mm1976 · driest 13 mm in 2007	82
April	35.0°C21 Apr 1987	-2.2°C4 Apr 1987	143 mm12 Apr 1974	427 mm1964 · driest 23 mm in 1987	82
May	37.2°C30 May 1951	3.3°C13 May 1960	88 mm11 May 2019	249 mm1980 · driest 7 mm in 1951	82
June	40.0°C29 Jun 1988	5.6°C1 Jun 1984	82 mm19 Jun 2023	282 mm2017 · driest 7 mm in 2009	83
July	41.7°C14 Jul 1980	12.2°C23 Jul 1947	177 mm2 Jul 1959	388 mm1959 · driest 27 mm in 2000	83
August	41.1°C29 Aug 2000	11.7°C22 Aug 1956	121 mm10 Aug 1991	290 mm2022 · driest 2 mm in 2024	82
September	40.6°C4 Sep 1990	1.1°C30 Sep 1967	114 mm6 Sep 1977	274 mm2002 · driest 3 mm in 1982	82
October	38.9°C3 Oct 2019	-4.4°C30 Oct 1952	136 mm21 Oct 1984	297 mm2019 · driest 0 mm in 1952	82
November	31.7°C1 Nov 2016	-8.9°C25 Nov 1950	125 mm27 Nov 2001	354 mm1948 · driest 10 mm in 1956	82
December	28.9°C31 Dec 2021	-16.7°C23 Dec 1989	203 mm25 Dec 1973	376 mm1973 · driest 28 mm in 1980	82

Typical days per month at MERIDIAN KEY FLD, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	<1	0	14	4
February	2	0	10	4
March	9	<1	4	4
April	18	3	<1	4
May	28	15	0	3
June	30	25	0	3
July	31	29	0	4
August	31	29	0	3
September	28	21	0	2
October	19	6	<1	3
November	5	<1	7	3
December	1	0	13	4

How often, not how much — every day in MERIDIAN KEY FLD’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	14%	29%	14%	34%	11.2–17.9°C
February	26%	29%	14%	33%	13.2–20.2°C
March	46%	28%	15%	30%	17.9–23.7°C
April	67%	25%	13%	25%	23.4–27.1°C
May	75%	25%	11%	26%	27.3–30.5°C
June	73%	27%	12%	30%	30.7–34.4°C
July	67%	33%	14%	39%	32.1–35.3°C
August	75%	25%	10%	26%	31.9–35.3°C
September	79%	21%	8%	19%	28.9–32.6°C
October	77%	15%	7%	13%	24.1–27.6°C
November	42%	23%	11%	21%	17.8–21.9°C
December	19%	28%	14%	32%	12.8–18.2°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.

1945Each stripe is one year’s mean temperature against the 81-year average. Warmest: 2016. Coolest: 1976.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4434904
NOAA station: USW00013865 · MERIDIAN KEY FLD
Station distance: 13.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 32.42°, 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 MERIDIAN KEY FLD is what differs

Meridian→Collinsville→Nellieburg→Yantley→Arunde→Bailey→

Or put two places side by side: Marion vs Meridian

Best time to visitMarion.