Westerly weather in March

In March, Westerly sees average daytime highs of 45°F and overnight lows near 33°F, with 4.3 in of precipitation across 10.6 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 42°F in the first days to 49°F by the end. The sky is clear or mostly clear about 27% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 hours at the start of March to 12 h 24 min by month's end. Set against the rest of the year, March is Westerly's 10th-clearest and 2nd-windiest month. For the whole year in context, see Westerly's year-round climate.

Daytime high
45°
9th warmest
Overnight low
33°
4th coldest
Precipitation
4.3 in
10.6 wet days
Daylight
11 h 42 min
6:07 AM – 5:47 PM
Cloud cover
63%
10th clearest
Wind
9 mph
2nd windiest
Solar energy
4.03 kWh/m²
Travel score
1.0
out of 10

Westerly is town in Washington County, Rhode Island, United States.

Founded
1661

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 42°F in the first days to 49°F by the end.

A typical March day in Westerly reaches about 45°F in the afternoon and slips back to 33°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 35°F and 55°F. Set against its neighbours, March runs about 6°F warmer than February and about 10°F cooler than April.

20°30°40°50°60°151015202531
Avg high (°F)Avg low (°F)
14129
24229
34229
44229
54229
64230
74330
84330
94330
104331
114431
124431
134431
144432
154432
164532
174533
184533
194633
204633
214634
224634
234735
244735
254735
264835
274836
284936
294937
304937
315037

How March really feels in Westerly

Once humidity and wind are folded in, March averages 0 days that feel above 90°F and 31 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
31
wind chill below the day's low

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

Westerly weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan37° / 25°3.71059.40.0
Feb39° / 26°3.28.94.510.30.0
Mar45° / 33°4.310.63.811.71.0
Apr55° / 42°3.810.60.713.13.4
May64° / 51°3.310.8014.35.6
Jun73° / 60°3.610.1014.96.6
Jul80° / 67°3.110.3014.76.5
Aug78° / 66°3.99.8013.76.8
Sep72° / 59°3.88.8012.36.9
Oct62° / 49°4.29.20.110.95.4
Nov51° / 39°3.790.59.72.7
Dec43° / 31°4.510.43.29.10.5

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 16% of March, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24357
34357
44456
54357
64456
74456
84456
94456
104456
114456
124555
134555
144555
154456
164456
174456
184456
194357
204456
214357
224258
234258
244159
254159
264159
274159
284159
294159
304159
314060

Chance of precipitation in March

Any precipitationSnow

Westerly gets around 4.3 in of rain and snow over 10.6 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 34% and peaks near 36% on the wettest days, and about 4 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13517
23517
33516
43516
53516
63515
73515
83515
93414
103414
113414
123413
133313
143313
153312
163312
173312
183211
193211
203211
213310
223310
23339
24349
25348
26348
27357
28357
29357
30356
31366

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in March

Winds average 9 mph in March.

Across March, daily wind ranges from about 9 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 hours at the start of March to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over March. Sunrise moves from 6:32 AM to 5:41 AM, and sunset from 5:29 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:325:29
211.06:305:31
311.16:295:32
411.16:275:33
511.16:255:34
611.26:245:35
711.26:225:36
811.36:215:38
911.36:195:39
1011.46:175:40
1111.46:165:41
1211.56:145:42
1311.56:125:43
1411.66:115:44
1511.66:095:46
1611.76:075:47
1711.76:065:48
1811.86:045:49
1911.86:025:50
2011.86:005:51
2111.95:595:52
2211.95:575:53
2312.05:555:54
2412.05:535:56
2512.15:525:57
2612.15:505:58
2712.25:485:59
2812.25:466:00
2912.35:456:01
3012.35:436:02
3112.45:416:03

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.03 kWh/m².

For context, solar energy here swings from a low near 1.68 kWh/m² to a high of 6.16 kWh/m² in June across the year — March's 4.03 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.5Moderate
33.5Moderate
43.6Moderate
53.6Moderate
63.7Moderate
73.7Moderate
83.8Moderate
93.8Moderate
103.9Moderate
113.9Moderate
124.0Moderate
134.0Moderate
144.0Bright
154.1Bright
164.1Bright
174.1Bright
184.2Bright
194.2Bright
204.2Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.5Bright
314.5Bright
Planning a trip in March

Hazard calendar for Westerly

In seasonPeak

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

Westerly 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 March a good time to visit Westerly?

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

1.0
Sightseeing
9th-best month of the year
0.0
Beach & pool
9th-best month of the year

March is a weaker month for outdoor sightseeing in Westerly.

What to pack for Westerly in March

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

In March, Westerly sees daytime highs around 45°F and nights near 33°F. Pack a warm layer. Worth having: a heavy coat and rain gear. About 11 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Westerly in March

The nearest coast averages about 40°F in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 11 mi away) is warmest in August at about 69°F and coldest in February near 39°F.

It's comfortable for a long swim from Jul 29 to Aug 30 — about 1.1 months when the water holds above 68°F.

40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°F)Comfort
Jan43Bracing
Feb39Bracing
Mar40Bracing
Apr44Bracing
May51Bracing
Jun60Cool
Jul67Cool
Aug69Refreshing
Sep67Cool
Oct62Cool
Nov55Bracing
Dec48Bracing

UV index in Westerly in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Westerly peaks around July 10 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 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 10UV 8Dec 22UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Westerly in March

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Westerly is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (November, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1515 µg/m³Nov 206 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb10Good
Mar11Good
Apr12Good
May14Moderate
Jun14Moderate
Jul15Moderate
Aug13Moderate
Sep10Good
Oct7Good
Nov6Good
Dec6Good
Location & terrain

Where is Westerly?

Westerly sits at 41.4°N, 71.8°W, 36 ft above sea level, in United States. The nearest listed city is Ledyard, 11 mi away.

Topography around Westerly

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

Within 2 miles, the terrain around Westerly has only modest variations in elevation — a maximum elevation change of 282 ft around an average of 89 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 574 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,325 ft.

The land around Westerly is covered by trees (65%) within 2 miles, trees (56%) and water (33%) within 10 miles, and trees (48%) and water (45%) within 50 miles.

2 miles
282 ft
10 miles
574 ft
50 miles
1,325 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
March weather nearby: Ledyard 11 mi · New London 14 mi · Waterford 16 mi · Norwich 16 mi · South Kingstown 16 mi · Montville Center 18 mi · Narragansett 21 mi · Plainfield 21 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 Westerly (41.3776°, -71.8273°, elevation 36 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).