Carlisle weather in April

In April, Carlisle sees average daytime highs of 62°F and overnight lows near 43°F, with 3.7 in of precipitation across 11.2 wet days and about 13 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 57°F in the first days to 66°F by the end. The sky is clear or mostly clear about 24% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 36 min by month's end. Set against the rest of the year, April is Carlisle's 8th-clearest and 4th-windiest month. For the whole year in context, see Carlisle's year-round climate.

Daytime high
62°
7th warmest
Overnight low
43°
6th coldest
Precipitation
3.7 in
11.2 wet days
Daylight
13 h 06 min
5:37 AM – 6:41 PM
Cloud cover
65%
8th clearest
Wind
7 mph
4th windiest
Solar energy
5.01 kWh/m²
Travel score
5.0
out of 10

Carlisle is borough in Cumberland County, Pennsylvania, United States.

Density
1,334/km²
people per km²
Founded
1751

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 57°F in the first days to 66°F by the end.

A typical April day in Carlisle reaches about 62°F in the afternoon and slips back to 43°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 49°F and 76°F. Set against its neighbours, April runs about 12°F warmer than March and about 9°F cooler than May.

20°40°60°80°151015202530
Avg high (°F)Avg low (°F)
15638
25738
35739
45839
55840
65940
75940
86041
96041
106041
116142
126142
136242
146243
156243
166344
176344
186344
196444
206445
216445
226445
236546
246546
256546
266546
276647
286647
296647
306748

How April really feels in Carlisle

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

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Carlisle weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan38° / 24°3.29.24.59.50.0
Feb40° / 25°2.894.410.40.2
Mar50° / 33°3.910.73.311.72.1
Apr62° / 43°3.711.20.3135.0
May71° / 53°3.812.7014.26.1
Jun80° / 62°3.711.6014.86.2
Jul84° / 67°3.910.8014.65.3
Aug82° / 65°3.410.6013.66.0
Sep76° / 58°4.49.3012.36.9
Oct64° / 46°3.48.30.210.95.8
Nov52° / 37°3.18.50.89.82.8
Dec42° / 29°3.4939.20.3

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 14% of April, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23763
33763
43862
53862
63862
73763
83862
93862
103862
113862
123862
133862
143763
153763
163862
173862
183763
193862
203862
213961
223862
233862
243961
253961
263862
273961
284060
294159
304060

Chance of precipitation in April

Any precipitationSnow

Carlisle gets around 3.7 in of rain and snow over 11.2 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 38% and peaks near 41% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1374
2374
3373
4373
5373
6373
7372
8372
9362
10362
11361
12361
13361
14361
15361
16371
17371
18370
19370
20370
21380
22380
23380
24390
25390
26400
27400
28410
29410
30410

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49820
59820
69820
79730
89730
99730
109640
119640
129640
139541
149451
159451
169451
179451
189361
199361
209361
219361
229262
239172
249172
259082
268983
278893
288893
2986104
3085114

Wind in April

Winds average 7 mph in April.

Across April, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over April. Sunrise moves from 6:01 AM to 5:17 AM, and sunset from 6:25 PM to 6:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:016:25
212.46:006:26
312.55:586:27
412.55:566:28
512.65:556:29
612.65:536:30
712.75:526:32
812.75:506:33
912.85:486:34
1012.85:476:35
1112.85:456:36
1212.95:436:37
1312.95:426:38
1413.05:406:39
1513.05:396:40
1613.15:376:41
1713.15:366:42
1813.15:346:43
1913.25:326:44
2013.25:316:45
2113.35:296:46
2213.35:286:47
2313.45:276:48
2413.45:256:49
2513.45:246:50
2613.55:226:51
2713.55:216:52
2813.65:196:53
2913.65:186:54
3013.65:176:55

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.01 kWh/m².

For context, solar energy here swings from a low near 1.72 kWh/m² to a high of 6.05 kWh/m² in June across the year — April's 5.01 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.6Bright
34.6Bright
44.7Bright
54.7Bright
64.7Bright
74.8Bright
84.8Bright
94.8Bright
104.9Bright
114.9Bright
124.9Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in April

Is April a good time to visit Carlisle?

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

5.0
Sightseeing
7th-best month of the year
1.2
Beach & pool
7th-best month of the year

April is a reasonable time to visit Carlisle for sightseeing.

What to pack for Carlisle in April

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

In April, Carlisle sees daytime highs around 62°F and nights near 43°F. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

UV index in Carlisle in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Carlisle peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highHighModerateLowJun 22UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Carlisle in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Carlisle is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1316 µg/m³Nov 118 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar12Moderate
Apr13Moderate
May14Moderate
Jun16Moderate
Jul17Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Carlisle?

Carlisle sits at 40.2°N, 77.2°W, 479 ft above sea level, in United States. The nearest listed city is Harrisburg, 17 mi away.

Topography around Carlisle

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

Within 2 miles, the terrain around Carlisle has only modest variations in elevation — a maximum elevation change of 180 ft around an average of 482 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,699 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,438 ft.

The land around Carlisle is covered by trees (37%), grassland (27%) and artificial surfaces (27%) within 2 miles, trees (50%), cropland (24%) and grassland (21%) within 10 miles, and trees (60%) and cropland (21%) within 50 miles.

2 miles
180 ft
10 miles
1,699 ft
50 miles
2,438 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Harrisburg 17 mi · York 29 mi · Hanover 30 mi · Chambersburg 31 mi · Lebanon 42 mi · Westminster 45 mi · Hagerstown 48 mi · Lancaster 48 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 Carlisle (40.2015°, -77.1889°, elevation 479 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).