Sparta weather in June

In June, Sparta sees average daytime highs of 78°F and overnight lows near 60°F, with 3.9 in of rain across 11.3 wet days and about 14.9 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 75°F in the first days to 81°F by the end. The sky is clear or mostly clear about 24% of the time in June, and the air most often feels dry.

Daylight stretches from about 14 h 42 min at the start of June to 14 h 54 min by month's end. Set against the rest of the year, June is Sparta's 7th-clearest and 10th-windiest month. For the whole year in context, see Sparta's year-round climate.

Daytime high
78°
3rd warmest
Overnight low
60°
10th coldest
Rainfall
3.9 in
11.3 wet days
Daylight
14 h 54 min
4:31 AM – 7:27 PM
Cloud cover
63%
7th clearest
Wind
6 mph
10th windiest
Solar energy
5.96 kWh/m²
Travel score
6.4
out of 10

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 75°F in the first days to 81°F by the end.

A typical June day in Sparta reaches about 78°F in the afternoon and slips back to 60°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 68°F and 88°F. Set against its neighbours, June runs about 9°F warmer than May and about 5°F cooler than July.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17456
27456
37557
47557
57557
67557
77658
87658
97658
107659
117759
127759
137760
147860
157860
167860
177861
187961
197961
207962
218062
228062
238062
248063
258163
268163
278163
288163
298164
308264

How June really feels in Sparta

Once humidity and wind are folded in, June 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

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

Sparta weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan36° / 22°3.59.55.69.40.0
Feb39° / 23°3.08.84.610.40.0
Mar47° / 31°4.110.94.111.71.5
Apr59° / 41°3.710.80.713.14.4
May69° / 51°3.711.7014.36.1
Jun78° / 60°3.911.3014.96.4
Jul83° / 65°3.710.7014.65.7
Aug81° / 64°3.610.5013.66.3
Sep74° / 56°4.29.6012.36.9
Oct62° / 45°4.090.210.95.4
Nov50° / 35°3.28.319.72.5
Dec40° / 28°4.01049.10.2

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 19% of June, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24357
34357
44357
54357
64357
74258
84159
94159
104159
114060
124159
134258
144258
154258
164357
174357
184357
194456
204456
214357
224456
234555
244555
254555
264555
274555
284555
294654
304753

Chance of precipitation in June

Any precipitation

Sparta gets around 3.9 in of rain over 11.3 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
138
238
338
438
538
638
738
838
938
1038
1137
1237
1337
1437
1537
1637
1737
1837
1937
2037
2137
2237
2337
2437
2537
2637
2737
2836
2936
3036

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
154201880
253201890
352211890
4512118100
5502218110
6492218110
7472218120
8462318120
9452318131
10442419131
11422419141
12402520141
13382521151
14372521151
15352622161
16332523172
17322623172
18312624182
19302524182
20292525192
21282525192
22272526203
23262526203
24252526213
25242526214
26232526224
27222526225
28222526235
29212426235
30212425246

Wind in June

Winds average 6 mph in June.

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

0246810151015202530
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 42 min at the start of June to 14 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over June. Sunrise moves from 4:34 AM to 4:34 AM, and sunset from 7:18 PM to 7:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.74:347:18
214.74:347:19
314.84:337:19
414.84:337:20
514.84:337:21
614.84:327:21
714.84:327:22
814.84:327:23
914.94:327:23
1014.94:317:24
1114.94:317:24
1214.94:317:25
1314.94:317:25
1414.94:317:26
1514.94:317:26
1614.94:317:27
1714.94:317:27
1814.94:317:28
1914.94:317:28
2015.04:317:28
2115.04:317:28
2215.04:317:29
2315.04:327:29
2415.04:327:29
2515.04:327:29
2614.94:327:29
2714.94:337:29
2814.94:337:30
2914.94:337:30
3014.94:347:30

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.96 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.71 kWh/m² to a high of 5.96 kWh/m² in June across the year — June's 5.96 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
176.0Bright
186.0Bright
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in June

Hazard calendar for Sparta

In seasonPeak

In June, Sparta sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Sparta 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 June a good time to visit Sparta?

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

6.4
Sightseeing
2nd-best month of the year
6.0
Beach & pool
3rd-best month of the year

June is a reasonable time to visit Sparta for sightseeing.

What to pack for Sparta in June

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

In June, Sparta sees daytime highs around 78°F and nights near 60°F. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Sparta in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sparta peaks around July 11 at about 8 (very high) — sunscreen, a hat and midday shade are essential. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 11UV 8Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Sparta in June

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Sparta is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1416 µg/m³Nov 157 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar12Good
Apr12Moderate
May15Moderate
Jun15Moderate
Jul16Moderate
Aug13Moderate
Sep11Good
Oct8Good
Nov7Good
Dec8Good
Location & terrain

Where is Sparta?

Sparta sits at 41.0°N, 74.6°W, 748 ft above sea level, in United States. The nearest listed city is Hopatcong Hills, 6.2 mi away.

Topography around Sparta

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

Within 2 miles, the terrain around Sparta has only modest variations in elevation — a maximum elevation change of 745 ft around an average of 899 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,079 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,530 ft.

The land around Sparta is covered by trees (76%) within 2 miles, trees (80%) within 10 miles, and trees (75%) within 50 miles.

2 miles
745 ft
10 miles
1,079 ft
50 miles
2,530 ft
treesgrasslandcroplandartificial surfaceswater
June weather nearby: Hopatcong Hills 6.2 mi · Dover 11 mi · Denville 13 mi · Randolph 13 mi · West Milford 16 mi · Parsippany 16 mi · Morristown 18 mi · Wayne 21 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 Sparta (41.0334°, -74.6385°, elevation 748 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). 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).