United States · 1991–2020

Best time to visit
Bellevue

For Bellevue, September has the most comfortable weather in our climate comparison. Typical daytime highs are 25.5°C, nights average 13.6°C, and rainfall totals about 82 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.

Best all-round monthSeptember

Typical daytime high25.5°C

Typical night-time low13.6°C

September rainfall82 mm

Overall comfort

September

Other strong months: May and June

82/100 weather score

Outdoor sightseeing

October

Other strong months: May and April

78/100 weather score

Make the answer personal

Choose the weather
that suits you.

Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.

Daytime high: at least 18°CDaytime high: at most 28°CMonthly rain: no more than 100 mmWet days: no more than 10

3 months fit your choices for Bellevue

June27.3°C day · 92 mm rain · 9.4 wet days

September25.5°C day · 82 mm rain · 7.3 wet days

October18.6°C day · 71 mm rain · 8.3 wet days

The lowest comfort score is 5 out of 100. January, February and December share that score. In January, that is mainly because days reach only 3.7°C, 20° below the 24°C the score treats as ideal.

Quick answers

Planning a trip to Bellevue?

These answers come from the same measured monthly climate record shown on this page.

When is the best time to visit Bellevue?

September is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 25.5°C and 82 mm of rain.

What is the hottest month in Bellevue?

July is hottest in this record, with a typical daytime high of 29.5°C and a night-time low of 18.5°C.

Which month has the least rain?

February has the lowest monthly rainfall total at 68 mm.

Is this a weather forecast?

No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.

Month by month

See how the weather
changes through the year.

The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.

53.7° / -5.4°

55.2° / -4.7°

1510.6° / -0.7°

4717.8° / 4.8°

7422.9° / 10.5°

7427.3° / 15.9°

6229.5° / 18.5°

6828.8° / 17.5°

8225.5° / 13.6°

5818.6° / 7.2°

2611.9° / 1.6°

55.9° / -2.4°

Monthly climate evidence for Bellevue — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	3.7°C	-5.4°C	82 mm	10.6	9 h 34	5	Strong coverage
February	5.2°C	-4.7°C	68 mm	9.3	10 h 36	5	Strong coverage
March	10.6°C	-0.7°C	81 mm	9.9	11 h 49	15	Strong coverage
April	17.8°C	4.8°C	83 mm	10.6	13 h 13	47	Strong coverage
May	22.9°C	10.5°C	88 mm	10.6	14 h 24	74	Strong coverage
June	27.3°C	15.9°C	92 mm	9.4	15 h 03	74	Strong coverage
July	29.5°C	18.5°C	95 mm	8.6	14 h 48	62	Strong coverage
August	28.8°C	17.5°C	88 mm	7.9	13 h 47	68	Strong coverage
September	25.5°C	13.6°C	82 mm	7.3	12 h 25	82	Strong coverage
October	18.6°C	7.2°C	71 mm	8.3	11 h 03	58	Strong coverage
November	11.9°C	1.6°C	70 mm	8.3	9 h 52	26	Strong coverage
December	5.9°C	-2.4°C	71 mm	9.7	9 h 17	5	Strong coverage

Records at EMSWORTH L/D OHIO RVR, 1991–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.2°C31 Jan 2002	-25.0°C21 Jan 1994	61 mm12 Jan 2018	182 mm1996 · driest 27 mm in 1997	35
February	25.6°C25 Feb 2017	-23.3°C20 Feb 2015	93 mm13 Feb 2019	198 mm2019 · driest 17 mm in 2009	35
March	29.4°C31 Mar 1998	-18.9°C7 Mar 2015	51 mm27 Mar 2026	149 mm2011 · driest 5 mm in 2006	35
April	31.1°C19 Apr 2013	-6.7°C4 Apr 2013	66 mm12 Apr 2024	200 mm2024 · driest 35 mm in 2016	35
May	34.4°C31 May 2007	-1.7°C1 May 2018	53 mm29 May 2000	185 mm2019 · driest 37 mm in 2002	35
June	37.2°C26 Jun 1999	5.0°C3 Jun 2025	152 mm18 Jun 2009	179 mm2009 · driest 12 mm in 1992	35
July	38.9°C15 Jul 1995	9.4°C7 Jul 1992	102 mm29 Jul 1999	216 mm1992 · driest 21 mm in 1995	35
August	38.9°C13 Aug 1995	8.3°C30 Aug 2025	75 mm7 Aug 2000	164 mm2007 · driest 16 mm in 2025	34
September	35.6°C11 Sep 2013	2.8°C30 Sep 1992	104 mm30 Sep 2015	212 mm2018 · driest 19 mm in 2017	35
October	32.8°C2 Oct 2019	-3.3°C20 Oct 1992	60 mm30 Oct 2012	157 mm2019 · driest 9 mm in 1991	35
November	26.7°C3 Nov 2016	-11.1°C25 Nov 2005	50 mm12 Nov 2022	163 mm1997 · driest 20 mm in 2012	35
December	23.9°C5 Dec 1999	-16.7°C22 Dec 2008	70 mm1 Dec 2010	141 mm2012 · driest 22 mm in 1992	35

Typical days per month at EMSWORTH L/D OHIO RVR, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	21	3	3
February	<1	0	19	2	2
March	<1	0	15	3	<1
April	4	<1	4	3	0
May	12	3	<1	3	0
June	23	9	0	3	0
July	27	14	0	3	0
August	27	13	0	3	0
September	16	5	0	2	0
October	5	<1	1	2	0
November	<1	0	11	2	<1
December	0	0	19	2	2

How often different weather occurs at EMSWORTH L/D OHIO RVR, based on its daily record
Month	Dry days reaching 20°C	Wet days	Days with heavy rain	Weeks with 3+ wet days	Typical high by year
January	<1%	35%	8%	48%	-0.2–6.6°C
February	1%	31%	8%	40%	1.5–8.8°C
March	9%	32%	9%	42%	7.7–13.7°C
April	26%	36%	11%	45%	15.2–19.9°C
May	51%	33%	10%	42%	20.3–25.9°C
June	67%	30%	10%	35%	25.3–28.9°C
July	72%	28%	11%	30%	27.5–31.0°C
August	74%	26%	10%	24%	27.0–30.2°C
September	70%	25%	8%	26%	23.4–27.8°C
October	34%	26%	8%	28%	16.5–20.8°C
November	8%	27%	8%	32%	9.1–15.0°C
December	<1%	31%	7%	40%	3.1–9.3°C

A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.

1992Each stripe is one year’s mean temperature against the 33-year average. Warmest: 1998. Coolest: 2014.2025

The evidence behind this page

Where these figures
come from.

Place identity: GeoNames 5179811
NOAA station: USC00362574 · EMSWORTH L/D OHIO RVR
Station distance: 3.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 40.49°, 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.

Next step

Choose your month.
Then plan the details.

The weather comparison for Bellevue is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.

How travel partnerships will work

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