Darien in Spring

In spring (March, April and May), Darien sees average daytime highs around 56°F and overnight lows near 44°F, with 11.2 in of precipitation over about 32 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.

Over the season highs climb from about 42°F in early March to 71°F by late May. The sky is clear or mostly clear about 27% of the time across spring, and the air most often feels dry.

Spring is Darien's 3rd-best season to visit on our travel score. For the whole year in context, see Darien's year-round climate.

Avg daytime high
56°F
3rd-warmest season
Avg overnight low
44°F
Precipitation
11.2 in
32 wet days
Avg wind
8 mph
Travel score
3.7
3rd-best season
Months
Mar · Apr · May

Temperature in Darien in Spring

Average highAverage lowShaded bands: 10–90% of days

Over the season highs climb from about 42°F in early March to 71°F by late May.

A typical spring day in Darien reaches about 56°F and drops to 44°F overnight. The warmest of the three months is May, the coolest March.

20°40°60°80°MarAprMay

How spring really feels in Darien

Once humidity and wind are folded in, spring brings about 0 days that feel above 90°F and 29 that feel at or below 32°F.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
29
wind chill below the day's low

The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.

Darien weather by month

How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan37° / 26°3.394.69.40.0
Feb39° / 27°3.18.6410.40.0
Mar46° / 34°4.110.33.411.71.2
Apr57° / 44°3.610.50.413.13.9
May67° / 54°3.410.9014.35.9
Jun76° / 64°3.710.8014.96.6
Jul82° / 70°3.610.8014.76.3
Aug80° / 69°4.110.5013.66.5
Sep73° / 62°3.79012.37.0
Oct62° / 51°4.08.5010.95.6
Nov52° / 41°3.28.50.49.72.9
Dec43° / 33°4.19.82.79.10.5

Cloud cover in Spring

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time across spring.

0%25%50%75%100%MarAprMay

Chance of precipitation in Spring

Any precipitationSnow

Darien gets around 11.2 in of rain and snow over 32 wet days across spring. The line is the day-by-day chance of measurable precipitation.

0%10%20%30%40%50%MarAprMay

Humidity in Spring

DryComfortableHumidMuggyOppressiveMiserable

Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

0%25%50%75%100%MarAprMay

Wind in Spring

Winds average 8 mph across spring.

051015MarAprMay

Sunrise & sunset in Spring

DaylightNight

Daylight runs from about 11 hours in early March to 14 h 42 min by late May. The lit band spans sunrise to sunset each day.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMMarAprMay

Solar energy in Spring

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across spring, about 4.9 kWh/m².

0246MarAprMay
Planning a trip in spring

Hazard calendar for Darien

In seasonPeak

None of Darien's seasonal hazards peak in spring. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.

Darien sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is spring a good time to visit Darien?

Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

3.7
Sightseeing
3rd-best month of the year
1.0
Beach & pool
3rd-best month of the year

spring is a weaker month for outdoor sightseeing in Darien.

What to pack for Darien in Spring

From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In spring, Darien sees daytime highs around 56°F and nights near 44°F. Pack a warm layer. Worth having: a heavy coat, rain gear and sun protection. About 32 days see rain.

a warm layera heavy coatrain gearsun protection

Sea temperature near Darien in Spring

The nearest coast averages about 45°F across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 74°F and coldest in February near 35°F.

It's comfortable for a long swim from Jun 30 to Sep 30 — about 3.1 months when the water holds above 68°F.

30°40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan39Bracing
Feb35Bracing
Mar37Bracing
Apr44Bracing
May55Bracing
Jun65Cool
Jul72Refreshing
Aug74Refreshing
Sep71Refreshing
Oct64Cool
Nov55Bracing
Dec46Bracing

UV index in Darien in Spring

LowModerateHighVery highExtreme

Clear-sky midday UV across spring averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Darien peaks around July 11 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 11UV 8Dec 23UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Darien in Spring

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.

Air quality in Darien is worst in July — around 20 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 11 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateJul 1220 µg/m³Nov 1612 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar17Moderate
Apr17Moderate
May18Moderate
Jun19Moderate
Jul20Moderate
Aug17Moderate
Sep16Moderate
Oct13Moderate
Nov11Good
Dec13Moderate
Location & terrain

Where is Darien?

Darien sits at 41.1°N, 73.5°W, 46 ft above sea level, in United States. The nearest listed city is Stamford, 3.7 mi away.

Topography around Darien

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Darien.

Within 2 miles, the terrain around Darien has only modest variations in elevation — a maximum elevation change of 289 ft around an average of 92 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 692 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,909 ft.

The land around Darien is covered by trees (74%) within 2 miles, trees (48%) and water (43%) within 10 miles, and trees (54%) and water (31%) within 50 miles.

2 miles
289 ft
10 miles
692 ft
50 miles
1,909 ft
treesgrasslandartificial surfaceswaterwetland
Spring weather nearby: Stamford 3.7 mi · East Norwalk 4.3 mi · Norwalk 4.3 mi · New Canaan 5.0 mi · North Stamford 5.6 mi · Westport 7.5 mi · Wilton 8.1 mi · Port Chester 12 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Darien (41.0787°, -73.4693°, elevation 46 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.