South Plainfield weather in February

In February, South Plainfield sees average daytime highs of 42°F and overnight lows near 27°F, with 3.0 in of precipitation across 8.5 wet days and about 10.4 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 40°F in the first days to 45°F by the end. The sky is clear or mostly clear about 32% of the time in February, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of February to 10 h 54 min by month's end. Set against the rest of the year, February is South Plainfield's 5th-clearest and 2nd-windiest month. For the whole year in context, see South Plainfield's year-round climate.

Daytime high
42°
11th warmest
Overnight low
27°
2nd coldest
Precipitation
3.0 in
8.5 wet days
Daylight
10 h 24 min
7:00 AM – 5:24 PM
Cloud cover
59%
5th clearest
Wind
8 mph
2nd windiest
Solar energy
3.03 kWh/m²
Travel score
0.4
out of 10

Temperature in February

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 40°F in the first days to 45°F by the end.

A typical February day in South Plainfield reaches about 42°F in the afternoon and slips back to 27°F overnight — a 15°F spread between the day's warmth and the night's chill. On most days the high lands between 30°F and 55°F. Set against its neighbours, February runs about 3°F warmer than January and about 8°F cooler than March.

20°40°60°151015202528
Avg high (°F)Avg low (°F)
14025
24025
34025
44025
54026
64026
74026
84026
94026
104126
114126
124126
134126
144227
154227
164227
174227
184328
194328
204328
214428
224429
234429
244429
254529
264530
274530
284630

How February really feels in South Plainfield

Once humidity and wind are folded in, February averages 0 days that feel above 90°F and 28 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
28
wind chill below the day's low

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

South Plainfield weather by month

How February compares with the rest of the year at a glance. February is the 11th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 26°3.39.24.19.40.0
Feb42° / 27°3.08.53.510.40.4
Mar50° / 34°4.210.52.911.72.3
Apr62° / 44°3.710.70.3135.0
May71° / 54°3.611.4014.26.3
Jun81° / 63°4.211.2014.86.0
Jul86° / 69°4.211.2014.64.9
Aug83° / 67°4.110.2013.65.8
Sep76° / 60°4.09.1012.36.9
Oct65° / 49°3.78.60.110.96.1
Nov54° / 38°3.07.90.49.73.4
Dec44° / 31°4.09.42.29.20.8

Cloud cover in February

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 14% of February, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202528
Clearer (%)Cloudier (%)
14456
24456
34555
44555
54555
64654
74753
84753
94753
104753
114753
124852
134852
144753
154852
164654
174654
184654
194654
204654
214456
224456
234456
244357
254357
264357
274456
284357

Chance of precipitation in February

Any precipitationSnow

South Plainfield gets around 3.0 in of rain and snow over 8.5 wet days in February. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 34% on the wettest days, and about 4 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%151015202528
Rain chance (%)Snow chance (%)
12612
22613
32713
42713
52813
62813
72914
82914
93014
103014
113014
123014
133114
143114
153113
163113
173113
183213
193212
203212
213212
223212
233312
243312
253312
263412
273412
283412

Humidity in February

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, February 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%151015202528
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

Wind in February

Winds average 8 mph in February.

Across February, daily wind ranges from about 8 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202528
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze

Sunrise & sunset in February

DaylightNight

Daylight runs from about 9 h 54 min at the start of February to 10 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over February. Sunrise moves from 7:15 AM to 6:43 AM, and sunset from 5:07 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202528
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:155:07
29.97:145:08
39.97:135:10
410.07:125:11
510.07:115:12
610.07:105:13
710.17:095:14
810.17:085:16
910.27:075:17
1010.27:065:18
1110.27:055:19
1210.37:045:20
1310.37:035:22
1410.47:025:23
1510.47:005:24
1610.46:595:25
1710.56:585:26
1810.56:575:28
1910.66:555:29
2010.66:545:30
2110.66:535:31
2210.76:515:32
2310.76:505:34
2410.86:495:35
2510.86:475:36
2610.96:465:37
2710.96:445:38
2810.96:435:39

Solar energy in February

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in February, about 3.03 kWh/m².

For context, solar energy here swings from a low near 1.77 kWh/m² to a high of 5.97 kWh/m² in June across the year — February's 3.03 kWh/m² falls in the middle.

01234151015202528
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.7Moderate
42.7Moderate
52.7Moderate
62.8Moderate
72.8Moderate
82.8Moderate
92.9Moderate
102.9Moderate
112.9Moderate
123.0Moderate
133.0Moderate
143.0Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.2Moderate
203.2Moderate
213.2Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.5Moderate
Planning a trip in February

Hazard calendar for South Plainfield

In seasonPeak

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

South Plainfield 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 February a good time to visit South Plainfield?

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

0.4
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

February is a weaker month for outdoor sightseeing in South Plainfield.

What to pack for South Plainfield in February

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

In February, South Plainfield sees daytime highs around 42°F and nights near 27°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

Sea temperature near South Plainfield in February

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

The sea at the nearest coast (about 29 mi away) is warmest in August at about 74°F and coldest in February near 40°F.

It's comfortable for a long swim from Jun 30 to Sep 26 — about 2.9 months when the water holds above 68°F.

40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan43Bracing
Feb40Bracing
Mar41Bracing
Apr46Bracing
May55Bracing
Jun65Cool
Jul72Refreshing
Aug74Refreshing
Sep71Refreshing
Oct63Cool
Nov55Bracing
Dec48Bracing

UV index in South Plainfield in February

LowModerateHighVery highExtreme

Clear-sky midday UV in February peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in South Plainfield 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 21 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 11UV 8Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov3Moderate
Dec1Low

Air quality in South Plainfield in February

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in South Plainfield is worst in July — around 18 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (November, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJul 1318 µg/m³Nov 1410 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb15Moderate
Mar16Moderate
Apr16Moderate
May17Moderate
Jun17Moderate
Jul18Moderate
Aug16Moderate
Sep14Moderate
Oct11Good
Nov10Good
Dec12Good
Location & terrain

Where is South Plainfield?

South Plainfield sits at 40.6°N, 74.4°W, 59 ft above sea level, in United States. The nearest listed city is North Plainfield, 3.7 mi away.

Topography around South Plainfield

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

Within 2 miles, the terrain around South Plainfield has only modest variations in elevation — a maximum elevation change of 197 ft around an average of 102 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 650 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,834 ft.

The land around South Plainfield is covered by trees (56%) and artificial surfaces (30%) within 2 miles, trees (59%) and artificial surfaces (26%) within 10 miles, and trees (58%) within 50 miles.

2 miles
197 ft
10 miles
650 ft
50 miles
1,834 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
February weather nearby: North Plainfield 3.7 mi · Plainfield 3.7 mi · Edison 4.3 mi · Iselin 5.0 mi · Scotch Plains 5.6 mi · Piscataway 5.6 mi · Colonia 5.6 mi · Warren Township 6.2 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 South Plainfield (40.5793°, -74.4115°, elevation 59 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).