Delaware weather in March

In March, Delaware sees average daytime highs of 49°F and overnight lows near 32°F, with 3.8 in of precipitation across 11.3 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 20% 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 Delaware's 9th-clearest and 3rd-windiest month. For the whole year in context, see Delaware's year-round climate.

Daytime high
49°
9th warmest
Overnight low
32°
4th coldest
Precipitation
3.8 in
11.3 wet days
Daylight
11 h 42 min
6:52 AM – 6:32 PM
Cloud cover
70%
9th clearest
Wind
9 mph
3rd windiest
Solar energy
3.91 kWh/m²
Travel score
1.9
out of 10

Delaware is city in Ohio, United States; county seat of Delaware County.

Density
769/km²
people per km²
Founded
1808

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 Delaware 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 10°F warmer than February and about 13°F cooler than April.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
14327
24327
34428
44428
54428
64528
74529
84629
94629
104629
114730
124730
134831
144831
154831
164932
174932
185033
195033
205133
215134
225134
235234
245235
255335
265335
275436
285436
295537
305537
315537

How March really feels in Delaware

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.

Delaware 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° / 22°3.311.169.50.0
Feb39° / 24°2.79.24.610.40.0
Mar49° / 32°3.811.32.811.71.9
Apr62° / 42°4.512.70.8134.8
May71° / 53°4.413.5014.26.0
Jun80° / 62°4.111.9014.86.2
Jul83° / 65°3.611.4014.65.9
Aug81° / 64°2.99.6013.66.6
Sep75° / 56°2.98.8012.37.1
Oct63° / 45°2.99.20.210.95.6
Nov50° / 35°3.29.61.29.82.3
Dec40° / 27°3.410.23.99.20.1

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 13% of March, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
23070
33169
43268
53268
63268
73367
83466
93466
103466
113466
123466
133565
143565
153466
163466
173466
183466
193466
203367
213367
223367
233367
243367
253367
263367
273268
283268
293268
303367
313268

Chance of precipitation in March

Any precipitationSnow

Delaware gets around 3.8 in of rain and snow over 11.3 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 36% and peaks near 40% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13614
23614
33614
43613
53613
63613
73613
83512
93512
103512
113511
123511
133410
143410
153410
16349
17359
18358
19358
20357
21367
22367
23376
24386
25386
26396
27396
28405
29405
30405
31405

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
61000
7991
8991
9991
10991
11991
12991
13982
14982
15982
16982
17982
18982
19973
20973
21973
22973
23973
24973
25982
26982
27982
28982
29982
30973
31973

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 7:16 AM to 6:27 AM, and sunset from 6:15 PM to 6:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:166:15
211.07:146:17
311.17:136:18
411.17:116:19
511.27:096:20
611.27:086:21
711.37:066:22
811.37:056:23
911.47:036:24
1011.47:026:26
1111.47:006:27
1211.56:586:28
1311.56:576:29
1411.66:556:30
1511.66:536:31
1611.76:526:32
1711.76:506:33
1811.86:496:34
1911.86:476:35
2011.96:456:36
2111.96:446:37
2211.96:426:38
2312.06:406:39
2412.06:386:41
2512.16:376:42
2612.16:356:43
2712.26:336:44
2812.26:326:45
2912.36:306:46
3012.36:286:47
3112.46:276:48

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 3.91 kWh/m².

For context, solar energy here swings from a low near 1.6 kWh/m² to a high of 6.22 kWh/m² in June across the year — March's 3.91 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.4Moderate
43.5Moderate
53.5Moderate
63.6Moderate
73.6Moderate
83.7Moderate
93.7Moderate
103.7Moderate
113.8Moderate
123.8Moderate
133.9Moderate
143.9Moderate
153.9Moderate
164.0Moderate
174.0Moderate
184.0Bright
194.0Bright
204.1Bright
214.1Bright
224.1Bright
234.2Bright
244.2Bright
254.2Bright
264.3Bright
274.3Bright
284.4Bright
294.4Bright
304.4Bright
314.5Bright
Planning a trip in March

Is March a good time to visit Delaware?

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

1.9
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 Delaware.

What to pack for Delaware in March

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

In March, Delaware 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 Delaware 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 Delaware 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 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 Delaware 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 Delaware 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 1216 µg/m³Oct 238 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar12Moderate
Apr12Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Delaware?

Delaware sits at 40.3°N, 83.1°W, 869 ft above sea level, in United States. The nearest listed city is Westerville, 14 mi away.

Topography around Delaware

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

Within 2 miles, the terrain around Delaware has only modest variations in elevation — a maximum elevation change of 194 ft around an average of 922 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 315 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,033 ft.

The land around Delaware is covered by trees (43%), artificial surfaces (23%) and grassland (20%) within 2 miles, cropland (43%), trees (29%) and grassland (21%) within 10 miles, and cropland (56%) and trees (26%) within 50 miles.

2 miles
194 ft
10 miles
315 ft
50 miles
1,033 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Westerville 14 mi · Dublin 14 mi · Marysville 16 mi · Hilliard 19 mi · Marion 21 mi · Upper Arlington 21 mi · Gahanna 22 mi · Columbus 24 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 Delaware (40.2987°, -83.068°, elevation 869 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).