New Castle weather in March

In March, New Castle sees average daytime highs of 49°F and overnight lows near 32°F, with 3.8 in of precipitation across 10.9 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 44°F in the first days to 55°F by the end. The sky is clear or mostly clear about 23% 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 18 min by month's end. Set against the rest of the year, March is New Castle's 9th-clearest and 4th-windiest month. For the whole year in context, see New Castle's year-round climate.

Daytime high
49°
9th warmest
Overnight low
32°
4th coldest
Precipitation
3.8 in
10.9 wet days
Daylight
11 h 42 min
7:01 AM – 6:41 PM
Cloud cover
68%
9th clearest
Wind
10 mph
4th windiest
Solar energy
4.02 kWh/m²
Travel score
2.0
out of 10

New Castle is city in Indiana, United States.

Density
930/km²
people per km²
Founded
1822

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 44°F in the first days to 55°F by the end.

A typical March day in New Castle reaches about 49°F in the afternoon and slips back to 32°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 34°F and 66°F. Set against its neighbours, March runs about 11°F warmer than February and about 12°F cooler than April.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
14327
24327
34428
44428
54528
64528
74529
84629
94629
104730
114730
124731
134831
144831
154932
164932
175032
185033
195133
205134
215134
225234
235235
245335
255335
265336
275436
285437
295537
305537
315638

How March really feels in New Castle

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.

New Castle weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan35° / 21°3.29.85.39.50.0
Feb38° / 24°2.68.84.610.40.0
Mar49° / 32°3.810.92.711.72.0
Apr62° / 43°4.712.50.7134.8
May71° / 53°4.613.6014.26.0
Jun79° / 63°4.212.2014.86.2
Jul82° / 66°3.411.4014.56.1
Aug81° / 64°3.09.8013.66.6
Sep76° / 56°2.97.9012.37.2
Oct63° / 45°3.28.80.210.95.7
Nov50° / 35°3.48.71.19.82.3
Dec39° / 26°3.210.33.99.20.1

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 14% of March, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23565
33763
43763
53763
63862
73862
83862
93862
103862
113862
123862
133862
143862
153862
163763
173763
183763
193664
203664
213664
223664
233565
243466
253466
263565
273565
283664
293664
303664
313763

Chance of precipitation in March

Any precipitationSnow

New Castle gets around 3.8 in of rain and snow over 10.9 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 35% and peaks near 40% on the wettest days, and about 3 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13414
23414
33414
43313
53313
63313
73312
83312
93312
103311
113311
123311
133410
143410
15349
16349
17349
18358
19358
20357
21367
22366
23376
24386
25386
26395
27395
28395
29405
30405
31404

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
6991
7991
8991
9991
10991
11991
12991
13982
14982
15982
16982
17982
18973
19973
20973
21973
22973
23973
24973
25973
26973
27973
28973
29973
30973
31973

Wind in March

Winds average 10 mph in March.

Across March, daily wind ranges from about 10 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze
3110light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 hours at the start of March to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over March. Sunrise moves from 7:24 AM to 6:36 AM, and sunset from 6:25 PM to 6:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:246:25
211.17:236:26
311.17:216:27
411.17:206:28
511.27:186:30
611.27:176:31
711.37:156:32
811.37:146:33
911.47:126:34
1011.47:116:35
1111.57:096:36
1211.57:076:37
1311.57:066:38
1411.67:046:39
1511.67:036:40
1611.77:016:41
1711.76:596:42
1811.86:586:43
1911.86:566:45
2011.96:546:46
2111.96:536:47
2211.96:516:48
2312.06:496:49
2412.06:486:50
2512.16:466:51
2612.16:446:52
2712.26:436:53
2812.26:416:54
2912.36:396:55
3012.36:386:56
3112.36:366:57

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.02 kWh/m².

For context, solar energy here swings from a low near 1.7 kWh/m² to a high of 6.27 kWh/m² in July across the year — March's 4.02 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.7Moderate
73.7Moderate
83.8Moderate
93.8Moderate
103.9Moderate
113.9Moderate
123.9Moderate
134.0Moderate
144.0Moderate
154.0Bright
164.0Bright
174.1Bright
184.1Bright
194.1Bright
204.2Bright
214.2Bright
224.2Bright
234.3Bright
244.3Bright
254.3Bright
264.4Bright
274.4Bright
284.5Bright
294.5Bright
304.5Bright
314.6Bright
Planning a trip in March

Is March a good time to visit New Castle?

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

2.0
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 New Castle.

What to pack for New Castle in March

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

In March, New Castle sees daytime highs around 49°F and nights near 32°F. Pack a warm layer. Worth having: rain gear. About 11 days see rain.

a warm layerrain gear

UV index in New Castle 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 New Castle peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 20UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun10Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

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

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1317 µg/m³Oct 228 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar12Good
Apr12Good
May14Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is New Castle?

New Castle sits at 39.9°N, 85.4°W, 1,063 ft above sea level, in United States. The nearest listed city is Muncie, 18 mi away.

Topography around New Castle

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

Within 2 miles, the terrain around New Castle has only modest variations in elevation — a maximum elevation change of 187 ft around an average of 1,050 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 338 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 860 ft.

The land around New Castle is covered by trees (38%), cropland (22%) and grassland (21%) within 2 miles, cropland (68%) within 10 miles, and cropland (69%) and trees (20%) within 50 miles.

2 miles
187 ft
10 miles
338 ft
50 miles
860 ft
treesgrasslandcroplandartificial surfaceswater
March weather nearby: Muncie 18 mi · Anderson 21 mi · Greenfield 24 mi · Richmond 26 mi · Fishers 34 mi · Noblesville 35 mi · Lawrence 35 mi · Shelbyville 35 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 New Castle (39.9289°, -85.3702°, elevation 1,063 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. 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).