United States · 1991–2020

Best time to visit
Middle River

For Middle River, May has the most comfortable weather in our climate comparison. Typical daytime highs are 24.4°C, nights average 15.1°C, and rainfall totals about 92 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.

Best all-round monthMay

Typical daytime high24.4°C

Typical night-time low15.1°C

May rainfall92 mm

Overall comfort

May

Other strong months: October and September

86/100 weather score

Beach weather

June

Other strong months: August and September

79/100 weather score

Outdoor sightseeing

April

Other strong months: October and November

81/100 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 Middle River

April19.3°C day · 94 mm rain · 8.2 wet days

May24.4°C day · 92 mm rain · 8.4 wet days

October20.4°C day · 96 mm rain · 6.7 wet days

January has the lowest comfort score at 5 out of 100, compared with May at 86. The main reason is that days reach only 6.2°C, 18° below the 24°C the score treats as ideal.

Quick answers

Planning a trip to Middle River?

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

When is the best time to visit Middle River?

May is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 24.4°C and 92 mm of rain.

What is the hottest month in Middle River?

July is hottest in this record, with a typical daytime high of 31.9°C and a night-time low of 22.9°C.

Which month has the least rain?

January and February have the lowest monthly rainfall total at 70 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.

56.2° / -1°

128° / 0.1°

3112.8° / 3.9°

6219.3° / 9.5°

8624.4° / 15.1°

5829.6° / 20.3°

4231.9° / 22.9°

5030.7° / 22.1°

6927° / 18.6°

7120.4° / 11.9°

4414.2° / 6.2°

138.7° / 1.8°

Monthly climate evidence for Middle River — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 24 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	6.2°C	-1°C	70 mm	7.4	3.2°C	9 h 41	5	Good coverage
February	8°C	0.1°C	70 mm	7.3	2.3°C	10 h 39	12	Good coverage
March	12.8°C	3.9°C	89 mm	8.5	4.2°C	11 h 49	31	Good coverage
April	19.3°C	9.5°C	94 mm	8.2	8.5°C	13 h 11	62	Good coverage
May	24.4°C	15.1°C	92 mm	8.4	14.2°C	14 h 19	86	Good coverage
June	29.6°C	20.3°C	98 mm	8.6	20.2°C	14 h 55	58	Good coverage
July	31.9°C	22.9°C	123 mm	8.7	24.7°C	14 h 41	42	Good coverage
August	30.7°C	22.1°C	113 mm	7.8	25.7°C	13 h 42	50	Good coverage
September	27°C	18.6°C	118 mm	6.2	23.3°C	12 h 24	69	Good coverage
October	20.4°C	11.9°C	96 mm	6.7	18.2°C	11 h 06	71	Good coverage
November	14.2°C	6.2°C	72 mm	6.1	11.9°C	9 h 58	44	Good coverage
December	8.7°C	1.8°C	94 mm	8.1	6.8°C	9 h 25	13	Good coverage

Records at MARYLAND SCI CTR, 1998–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.7°C26 Jan 2024	-15.5°C7 Jan 2014	79 mm9 Jan 2024	185 mm2024 · driest 24 mm in 2018	26
February	28.3°C21 Feb 2018	-16.0°C20 Feb 2015	63 mm24 Feb 2016	135 mm2016 · driest 9 mm in 2009	26
March	30.6°C31 Mar 2025	-10.0°C3 Mar 2009	72 mm10 Mar 2011	140 mm2024 · driest 4 mm in 2006	26
April	35.6°C29 Apr 2024	-1.0°C5 Apr 2016	101 mm30 Apr 2014	236 mm2014 · driest 41 mm in 2016	25
May	37.2°C19 May 2026	2.8°C9 May 2020	81 mm27 May 2018	236 mm2018 · driest 10 mm in 2023	27
June	41.1°C29 Jun 2012	11.1°C2 Jun 2003	82 mm10 Jun 2013	221 mm2013 · driest 19 mm in 2017	25
July	42.2°C22 Jul 2011	15.6°C2 Jul 2001	91 mm22 Jul 1999	259 mm2018 · driest 52 mm in 2007	26
August	41.1°C8 Aug 2007	11.7°C8 Aug 2004	138 mm12 Aug 2014	304 mm2011 · driest 12 mm in 2006	26
September	37.8°C5 Sep 2023	8.9°C26 Sep 2001	145 mm30 Sep 2010	276 mm1999 · driest 2 mm in 2019	26
October	35.0°C9 Oct 2007	2.8°C18 Oct 2009	154 mm29 Oct 2012	238 mm2012 · driest 3 mm in 2000	26
November	28.3°C6 Nov 2024	-6.0°C19 Nov 2014	62 mm16 Nov 2006	199 mm2018 · driest 16 mm in 2012	25
December	25.6°C1 Dec 2006	-13.2°C24 Dec 2022	61 mm7 Dec 2011	184 mm2009 · driest 20 mm in 2017	25

Typical days per month at MARYLAND SCI CTR, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	18	2
February	<1	0	14	2
March	<1	0	6	3
April	5	2	<1	3
May	14	6	0	3
June	26	15	0	3
July	30	23	0	3
August	29	19	0	3
September	21	8	0	3
October	6	1	0	3
November	<1	0	2	2
December	0	0	12	4

How often different weather occurs at MARYLAND SCI CTR, 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%	24%	8%	22%	3.0–10.1°C
February	2%	25%	8%	28%	4.2–12.1°C
March	13%	27%	9%	31%	10.0–16.9°C
April	37%	28%	10%	30%	17.7–21.9°C
May	62%	28%	9%	34%	21.9–27.0°C
June	72%	28%	10%	34%	28.3–31.9°C
July	72%	28%	11%	34%	30.3–34.4°C
August	76%	24%	11%	22%	29.2–32.2°C
September	76%	22%	11%	23%	25.0–29.0°C
October	46%	20%	9%	17%	18.9–23.1°C
November	13%	21%	8%	19%	12.0–16.8°C
December	2%	26%	12%	26%	5.9–12.1°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.

1999Each stripe is one year’s mean temperature against the 23-year average. Warmest: 2012. Coolest: 2003.2025

The evidence behind this page

Where these figures
come from.

Place identity: GeoNames 4362344
NOAA station: USW00093784 · MARYLAND SCI CTR
Station distance: 15.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 39.33°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 24 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.

Next step

Choose your month.
Then plan the details.

The weather comparison for Middle River 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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