United States · 1991–2020

Best time to visit
Sylvania.

September leads for comfortable weather in Sylvania: typically 24.5°C by day, 12°C at night, with 74 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24.5°C

Typical low12°C

Rain in September74 mm

Comfort

September

September · June · August

84climate match

Beach

July

July · August · June

75climate match

Outdoors

May

May · October · September

74climate match

The weakest month is January, scoring 5 against September’s 84 — days reach only 0.6°C, 23° below the 24°C the score treats as ideal.

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

50.6° / -7.4°

Feb

52.3° / -6.4°

Mar

88.2° / -2°

Apr

3815.5° / 3.7°

May

6922° / 9.7°

Jun

7727.3° / 15°

Jul

6829.3° / 17.1°

Aug

7428.1° / 16.3°

Sep

8424.5° / 12°

Oct

5417.4° / 6°

Nov

189.7° / 0.6°

Dec

53.2° / -4.1°

Monthly climate evidence for Sylvania — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 33 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	0.6°C	-7.4°C	60 mm	9.4	1.2°C	9 h 27	5	Strong coverage
February	2.3°C	-6.4°C	58 mm	7.7	0.8°C	10 h 32	5	Strong coverage
March	8.2°C	-2°C	66 mm	8.8	2.0°C	11 h 48	8	Strong coverage
April	15.5°C	3.7°C	88 mm	9.8	6.5°C	13 h 16	38	Strong coverage
May	22°C	9.7°C	97 mm	10.3	13.2°C	14 h 31	69	Strong coverage
June	27.3°C	15°C	88 mm	8	19.6°C	15 h 11	77	Strong coverage
July	29.3°C	17.1°C	83 mm	7.8	23.8°C	14 h 55	68	Strong coverage
August	28.1°C	16.3°C	80 mm	7.3	24.1°C	13 h 51	74	Strong coverage
September	24.5°C	12°C	74 mm	7.2	21.1°C	12 h 25	84	Strong coverage
October	17.4°C	6°C	66 mm	7.7	14.5°C	11 h 00	54	Strong coverage
November	9.7°C	0.6°C	67 mm	7.6	7.9°C	9 h 46	18	Strong coverage
December	3.2°C	-4.1°C	62 mm	8.2	3.2°C	9 h 10	5	Strong coverage

What has changed

Sylvania 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

+1.9

Feb

+2.1

Mar

+1.9

Apr

+0.7

May

+1.4

Jun

+1.4

Jul

+1.2

Aug

+1.0

Sep

+1.5

Oct

+1.3

Nov

+1.0

Dec

+3.0

September daytime highs, 2011–2025. Last recorded: 26.4°C.

Records at TOLEDO EXPRESS AP, 1955–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.9°C7 Jan 2008	-28.9°C21 Jan 1984	43 mm13 Jan 2013	119 mm2024 · driest 7 mm in 1961	72
February	22.8°C27 Feb 2024	-28.2°C20 Feb 2015	66 mm22 Feb 1990	140 mm2008 · driest 7 mm in 1969	72
March	29.4°C22 Mar 2012	-21.1°C9 Mar 1984	66 mm28 Mar 1985	149 mm2026 · driest 15 mm in 1958	72
April	31.1°C16 Apr 2002	-13.3°C7 Apr 1982	73 mm22 Apr 1977	202 mm2024 · driest 22 mm in 1962	72
May	36.7°C28 May 2018	-3.9°C7 May 1974	47 mm18 May 2000	173 mm2000 · driest 23 mm in 2023	72
June	40.0°C25 Jun 1988	0.0°C11 Jun 1972	85 mm27 Jun 2015	215 mm1981 · driest 7 mm in 1988	72
July	40.0°C14 Jul 1995	4.4°C1 Jul 1988	110 mm4 Jul 1969	233 mm2006 · driest 9 mm in 1995	72
August	37.2°C27 Aug 1993	1.1°C29 Aug 1982	62 mm24 Aug 2023	215 mm1965 · driest 10 mm in 1976	70
September	36.7°C8 Sep 1978	-3.3°C23 Sep 1974	86 mm10 Sep 2014	206 mm1972 · driest 15 mm in 1963	71
October	32.8°C7 Oct 1963	-9.4°C28 Oct 1976	73 mm17 Oct 1988	189 mm2021 · driest 7 mm in 2005	71
November	26.7°C9 Nov 2020	-16.7°C30 Nov 1958	70 mm29 Nov 2011	182 mm2011 · driest 14 mm in 1976	71
December	21.1°C5 Dec 2001	-28.3°C22 Dec 1989	90 mm21 Dec 1967	173 mm1967 · driest 14 mm in 1958	71

Typical days per month at TOLEDO EXPRESS AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	2	9
February	0	0	25	2	7
March	<1	0	21	2	4
April	2	<1	7	3	1
May	11	4	<1	3	0
June	22	9	0	3	0
July	28	14	0	3	0
August	26	10	0	3	0
September	15	4	<1	2	0
October	4	<1	3	2	<1
November	<1	0	15	2	2
December	0	0	25	2	7

How often, not how much — every day in TOLEDO EXPRESS 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	0%	28%	5%	33%	-3.8–3.3°C
February	<1%	26%	5%	28%	-2.2–5.0°C
March	5%	29%	7%	38%	4.9–11.6°C
April	18%	32%	9%	39%	13.2–17.9°C
May	44%	31%	9%	40%	19.1–24.7°C
June	69%	28%	10%	30%	25.1–28.9°C
July	75%	25%	9%	25%	27.2–31.5°C
August	75%	24%	9%	23%	25.8–29.6°C
September	62%	25%	7%	25%	22.2–26.4°C
October	27%	23%	6%	23%	15.1–19.7°C
November	4%	27%	7%	31%	6.3–12.6°C
December	<1%	29%	7%	32%	-1.0–6.4°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.

1955Each stripe is one year’s mean temperature against the 70-year average. Warmest: 2021. Coolest: 1978.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5173572
NOAA station: USW00094830 · TOLEDO EXPRESS AP
Station distance: 16.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 41.72°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 33 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 TOLEDO EXPRESS AP is what differs

Maumee→Waterville→Whitehouse→Ottawa Hills→Swanton→Holland→

Or put two places side by side: Sylvania vs Maumee

Best time to visitSylvania.

September

July

May

The whole year,without the guesswork.

Sylvania runs +1.5°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Sylvania.

The whole year,
without the guesswork.

Sylvania runs +1.5°C
on the 1961–1990 baseline.

Nearby, measured,
and named.