United States · 1991–2020

Best time to visit
Charles North.

May leads for comfortable weather in Charles North: typically 24.4°C by day, 15.1°C at night, with 92 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high24.4°C

Typical low15.1°C

Rain in May92 mm

Comfort

May

May · October · September

86climate match

Beach

June

June · August · September

79climate match

Outdoors

April

April · October · November

81climate match

The weakest month is January, scoring 5 against May’s 86 — days reach only 6.2°C, 18° 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

56.2° / -1°

Feb

128° / 0.1°

Mar

3112.8° / 3.9°

Apr

6219.3° / 9.5°

May

8624.4° / 15.1°

Jun

5829.6° / 20.3°

Jul

4231.9° / 22.9°

Aug

5030.7° / 22.1°

Sep

6927° / 18.6°

Oct

7120.4° / 11.9°

Nov

4414.2° / 6.2°

Dec

138.7° / 1.8°

Monthly climate evidence for Charles North — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 29 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 18	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, not how much — every day in MARYLAND SCI CTR’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	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 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.

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

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 11979953
NOAA station: USW00093784 · MARYLAND SCI CTR
Station distance: 3.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 39.31°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 29 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 MARYLAND SCI CTR is what differs

Baltimore→Dundalk→Catonsville→Essex→Middle River→Arbutus→

Or put two places side by side: Charles North vs Baltimore

Best time to visitCharles North.

May

June

April

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Charles North.

The whole year,
without the guesswork.

Nearby, measured,
and named.