East Norwalk weather in May

In May, East Norwalk sees average daytime highs of 67°F and overnight lows near 54°F, with 3.4 in of rain across 10.9 wet days and about 14.3 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 62°F in the first days to 71°F by the end. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 42 min by month's end. Set against the rest of the year, May is East Norwalk's 12th-clearest and 8th-windiest month. For the whole year in context, see East Norwalk's year-round climate.

Daytime high
67°
5th warmest
Overnight low
54°
8th coldest
Rainfall
3.4 in
10.9 wet days
Daylight
14 h 18 min
4:41 AM – 6:59 PM
Cloud cover
64%
12th clearest
Wind
7 mph
8th windiest
Solar energy
5.66 kWh/m²
Travel score
5.9
out of 10

East Norwalk is human settlement in Norwalk, Connecticut, United States of America.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 62°F in the first days to 71°F by the end.

A typical May day in East Norwalk reaches about 67°F in the afternoon and slips back to 54°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 57°F and 77°F. Set against its neighbours, May runs about 10°F warmer than April and about 10°F cooler than June.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
16249
26249
36250
46350
56350
66451
76451
86451
96451
106552
116552
126552
136553
146653
156653
166653
176754
186754
196755
206855
216855
226956
236956
246956
257057
267057
277057
287158
297158
307158
317259

How May really feels in East Norwalk

Once humidity and wind are folded in, May averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

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

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

East Norwalk weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24258
34357
44357
54258
64258
74258
84258
94159
104159
114159
124159
134060
144060
154060
164159
174159
184159
194060
204060
214060
224159
234258
244258
254258
264258
274258
284258
294357
304357
314357

Chance of precipitation in May

Any precipitation

East Norwalk gets around 3.4 in of rain over 10.9 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
436
536
636
735
835
935
1035
1135
1235
1334
1434
1534
1634
1734
1834
1935
2035
2135
2235
2335
2435
2535
2635
2735
2835
2935
3035
3135

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
192710
291720
390820
490820
588930
688930
7871030
8851140
9851140
10841240
11821350
12821350
13801460
14801460
15771571
16751681
17751681
18731791
197118101
206819112
216620122
226420133
236221143
245922154
255822164
265523175
275523175
285224186
295124196
304924197
314725208

Wind in May

Winds average 7 mph in May.

Across May, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 4:59 AM to 4:30 AM, and sunset from 6:43 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.74:596:43
213.84:576:44
313.84:566:45
413.94:556:46
513.94:536:47
613.94:526:48
714.04:516:49
814.04:506:50
914.04:496:51
1014.14:476:53
1114.14:466:54
1214.24:456:55
1314.24:446:56
1414.24:436:57
1514.34:426:58
1614.34:416:59
1714.34:407:00
1814.44:397:01
1914.44:387:02
2014.44:377:03
2114.54:367:04
2214.54:367:04
2314.54:357:05
2414.54:347:06
2514.64:337:07
2614.64:337:08
2714.64:327:09
2814.64:317:10
2914.74:317:11
3014.74:307:11
3114.74:307:12

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.66 kWh/m².

For context, solar energy here swings from a low near 1.73 kWh/m² to a high of 6.1 kWh/m² in June across the year — May's 5.66 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
316.0Bright
Planning a trip in May

Hazard calendar for East Norwalk

In seasonPeak

None of East Norwalk's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

East Norwalk 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 May a good time to visit East Norwalk?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.9
Sightseeing
5th-best month of the year
2.7
Beach & pool
5th-best month of the year

May is a reasonable time to visit East Norwalk for sightseeing.

What to pack for East Norwalk in May

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

In May, East Norwalk sees daytime highs around 67°F and nights near 54°F. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near East Norwalk in May

The nearest coast averages about 55°F in May — 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 East Norwalk in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in East Norwalk 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 9 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 East Norwalk in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in East Norwalk 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 East Norwalk?

East Norwalk sits at 41.1°N, 73.4°W, 33 ft above sea level, in United States. The nearest listed city is Norwalk, 1.2 mi away.

Topography around East Norwalk

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

Within 2 miles, the terrain around East Norwalk has only modest variations in elevation — a maximum elevation change of 217 ft around an average of 46 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 1,913 ft.

The land around East Norwalk is covered by trees (36%), artificial surfaces (26%) and water (26%) within 2 miles, trees (49%) and water (42%) within 10 miles, and trees (54%) and water (31%) within 50 miles.

2 miles
217 ft
10 miles
692 ft
50 miles
1,913 ft
treesgrasslandartificial surfaceswaterwetland
May weather nearby: Norwalk 1.2 mi · Westport 3.1 mi · Darien 4.3 mi · New Canaan 5.6 mi · Wilton 6.8 mi · Fairfield 7.5 mi · North Stamford 8.1 mi · Stamford 8.1 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 East Norwalk (41.1056°, -73.3984°, elevation 33 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).