Mastic weather in March

In March, Mastic sees average daytime highs of 44°F and overnight lows near 36°F, with 4.4 in of precipitation across 10.2 wet days and about 11.7 hours of daylight. It is the 10th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 42°F in the first days to 47°F by the end. The sky is clear or mostly clear about 32% 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 Mastic's 8th-clearest and 5th-windiest month. For the whole year in context, see Mastic's year-round climate.

Daytime high
44°
10th warmest
Overnight low
36°
3rd coldest
Precipitation
4.4 in
10.2 wet days
Daylight
11 h 42 min
6:11 AM – 5:51 PM
Cloud cover
60%
8th clearest
Wind
13 mph
5th windiest
Solar energy
4.19 kWh/m²
Travel score
0.8
out of 10

Mastic is census-designated place in Suffolk County, New York, United States.

Density
1,481/km²
people per km²

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 47°F by the end.

A typical March day in Mastic reaches about 44°F in the afternoon and slips back to 36°F overnight — a 8°F spread between the day's warmth and the night's chill. On most days the high lands between 37°F and 52°F. Set against its neighbours, March runs about 4°F warmer than February and about 8°F cooler than April.

20°30°40°50°60°151015202531
Avg high (°F)Avg low (°F)
14233
24233
34233
44233
54234
64234
74234
84334
94334
104335
114335
124335
134335
144435
154436
164436
174436
184436
194437
204537
214537
224537
234538
244638
254638
264638
274639
284739
294739
304740
314740

How March really feels in Mastic

Once humidity and wind are folded in, March averages 0 days that feel above 90°F and 29 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
29
wind chill below the day's low

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

Mastic weather by month

How March compares with the rest of the year at a glance. March is the 10th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan40° / 31°3.79.83.99.40.0
Feb40° / 31°3.49.13.510.40.0
Mar44° / 36°4.410.22.811.70.8
Apr52° / 45°3.610.30.413.12.7
May60° / 53°3.310.2014.24.8
Jun70° / 64°3.38.8014.96.7
Jul76° / 71°3.08.6014.67.2
Aug76° / 70°3.79.3013.67.2
Sep71° / 65°3.78.8012.36.9
Oct62° / 55°4.39010.95.5
Nov53° / 46°3.68.70.39.73.2
Dec45° / 37°4.610.62.29.11.1

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 15% of March, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34456
44555
54555
64555
74654
84654
94654
104753
114753
124852
134852
144852
154852
164852
174852
184753
194852
204753
214753
224654
234654
244654
254654
264654
274654
284555
294555
304555
314555

Chance of precipitation in March

Any precipitationSnow

Mastic gets around 4.4 in of rain and snow over 10.2 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 33% and peaks near 36% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13512
23512
33412
43411
53411
63311
73311
83310
93210
103210
11329
12329
13319
14319
15319
16319
17319
18319
19328
20328
21328
22338
23338
24347
25347
26357
27356
28366
29365
30365
31365

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 13 mph in March.

Across March, daily wind ranges from about 12 mph on the calmest days to 14 mph at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (mph)Feels
114breezy
214breezy
314breezy
414breezy
514breezy
614breezy
714breezy
814breezy
914breezy
1014breezy
1114breezy
1213breezy
1313breezy
1413breezy
1513breezy
1613breezy
1713breezy
1813breezy
1913breezy
2013breezy
2113breezy
2213breezy
2313breezy
2413breezy
2513breezy
2613breezy
2713breezy
2813breezy
2912breezy
3012breezy
3112breezy

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 6:35 AM to 5:46 AM, and sunset from 5:34 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:355:34
211.06:345:35
311.16:325:36
411.16:315:37
511.26:295:39
611.26:275:40
711.36:265:41
811.36:245:42
911.36:235:43
1011.46:215:44
1111.46:195:45
1211.56:185:47
1311.56:165:48
1411.66:145:49
1511.66:135:50
1611.76:115:51
1711.76:095:52
1811.86:085:53
1911.86:065:54
2011.86:045:55
2111.96:035:56
2211.96:015:57
2312.05:595:59
2412.05:586:00
2512.15:566:01
2612.15:546:02
2712.25:526:03
2812.25:516:04
2912.35:496:05
3012.35:476:06
3112.45:466:07

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.19 kWh/m².

For context, solar energy here swings from a low near 1.74 kWh/m² to a high of 6.55 kWh/m² in June across the year — March's 4.19 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.7Moderate
43.7Moderate
53.8Moderate
63.8Moderate
73.9Moderate
83.9Moderate
94.0Moderate
104.0Bright
114.1Bright
124.1Bright
134.1Bright
144.2Bright
154.2Bright
164.3Bright
174.3Bright
184.3Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.6Bright
284.6Bright
294.6Bright
304.7Bright
314.7Bright
Planning a trip in March

Hazard calendar for Mastic

In seasonPeak

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

Mastic 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 Mastic?

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

0.8
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

March is a weaker month for outdoor sightseeing in Mastic.

What to pack for Mastic in March

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

In March, Mastic sees daytime highs around 44°F and nights near 36°F. Pack a warm layer. Worth having: a heavy coat, rain gear and a windbreaker. About 10 days see rain.

a warm layera heavy coatrain geara windbreaker

Sea temperature near Mastic in March

The nearest coast averages about 41°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 12 mi away) is warmest in August at about 73°F and coldest in February near 40°F.

It's comfortable for a long swim from Jul 4 to Sep 22 — about 2.7 months when the water holds above 68°F.

40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan44Bracing
Feb40Bracing
Mar41Bracing
Apr45Bracing
May53Bracing
Jun64Cool
Jul71Refreshing
Aug73Refreshing
Sep69Refreshing
Oct63Cool
Nov56Bracing
Dec49Bracing

UV index in Mastic in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mastic 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 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 11UV 8Dec 22UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Mastic 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 Mastic is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1016 µg/m³Nov 178 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar14Moderate
Apr15Moderate
May16Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep11Good
Oct9Good
Nov8Good
Dec8Good
Location & terrain

Where is Mastic?

Mastic sits at 40.8°N, 72.8°W, 30 ft above sea level, in United States. The nearest listed city is Shirley, 1.2 mi away.

Topography around Mastic

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

Within 2 miles, the terrain around Mastic has only modest variations in elevation — a maximum elevation change of 98 ft around an average of 46 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 328 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 965 ft.

The land around Mastic is covered by trees (63%) within 2 miles, trees (46%) and water (36%) within 10 miles, and water (59%) and trees (32%) within 50 miles.

2 miles
98 ft
10 miles
328 ft
50 miles
965 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
March weather nearby: Shirley 1.2 mi · Medford 8.7 mi · East Patchogue 8.7 mi · Coram 9.3 mi · Farmingville 9.9 mi · Holtsville 11 mi · Selden 11 mi · Holbrook 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 Mastic (40.802°, -72.8409°, elevation 30 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).