Hopatcong Hills weather in July

In July, Hopatcong Hills sees average daytime highs of 83°F and overnight lows near 65°F, with 3.7 in of rain across 10.7 wet days and about 14.6 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 83°F through the month. The sky is clear or mostly clear about 25% of the time in July, and the air most often feels humid.

Daylight stretches from about 14 h 54 min at the start of July to 14 h 12 min by month's end. Set against the rest of the year, July is Hopatcong Hills's 4th-clearest and 11th-windiest month. For the whole year in context, see Hopatcong Hills's year-round climate.

Daytime high
83°
1st warmest
Overnight low
65°
12th coldest
Rainfall
3.7 in
10.7 wet days
Daylight
14 h 42 min
4:44 AM – 7:24 PM
Cloud cover
60%
4th clearest
Wind
5 mph
11th windiest
Solar energy
5.91 kWh/m²
Travel score
5.7
out of 10

Hopatcong Hills is human settlement in Sussex County, New Jersey, United States of America.

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 83°F through the month.

A typical July day in Hopatcong Hills reaches about 83°F in the afternoon and slips back to 65°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 75°F and 91°F. Set against its neighbours, July runs about 5°F warmer than June and about 2°F warmer than August.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18264
28264
38264
48264
58265
68265
78365
88365
98365
108365
118365
128365
138365
148365
158366
168366
178366
188366
198366
208366
218366
228366
238366
248366
258366
268366
278366
288366
298366
308366
318366

How July really feels in Hopatcong Hills

Once humidity and wind are folded in, July 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

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

Hopatcong Hills weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 8th-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 23% of July, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34753
44753
54753
64753
74951
85050
95050
105149
115149
125149
135248
145248
155248
165248
175149
185149
194951
204951
214951
224852
234852
244852
254852
264852
274753
284852
294753
304852
314753

Chance of precipitation in July

Any precipitation

Hopatcong Hills gets around 3.7 in of rain over 10.7 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
435
535
635
735
834
934
1033
1133
1233
1333
1433
1533
1633
1733
1834
1934
2035
2135
2235
2336
2436
2536
2636
2737
2837
2937
3037
3136

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the humid band about 28% of days. Sticky, muggy-or-worse air turns up on roughly 34% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1212425246
2202425247
3202425247
4202425247
5202425247
6202425248
7202325248
8202325248
9202326248
10192226258
11192226258
12182127268
13182127268
14182127268
15172028278
16172028278
17162028278
18162028278
19152029288
20152029288
21142029288
22142030288
23142030288
24132030289
25132031289
26132031279
27132031279
28142031279
29142031268
30152030268
31152030268

Wind in July

Winds average 5 mph in July.

Across July, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 54 min at the start of July to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over July. Sunrise moves from 4:35 AM to 4:57 AM, and sunset from 7:29 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:357:29
214.94:357:29
314.94:367:29
414.94:367:29
514.94:377:29
614.94:377:29
714.84:387:28
814.84:397:28
914.84:397:28
1014.84:407:27
1114.84:407:27
1214.84:417:26
1314.74:427:26
1414.74:437:26
1514.74:437:25
1614.74:447:24
1714.64:457:24
1814.64:467:23
1914.64:477:23
2014.64:477:22
2114.54:487:21
2214.54:497:20
2314.54:507:20
2414.54:517:19
2514.44:527:18
2614.44:537:17
2714.44:547:16
2814.34:557:15
2914.34:557:14
3014.34:567:13
3114.24:577:12

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.91 kWh/m².

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 — July's 5.91 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.0Intense
136.0Intense
146.0Intense
156.0Bright
166.0Bright
175.9Bright
185.9Bright
195.9Bright
205.8Bright
215.8Bright
225.8Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.5Bright
Planning a trip in July

Hazard calendar for Hopatcong Hills

In seasonPeak

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

Hopatcong Hills 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 July a good time to visit Hopatcong Hills?

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

5.7
Sightseeing
5th-best month of the year
6.7
Beach & pool
1st-best month of the year

July is a reasonable time to visit Hopatcong Hills for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Hopatcong Hills in July

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

In July, Hopatcong Hills sees daytime highs around 83°F and nights near 65°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Hopatcong Hills in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hopatcong Hills peaks around July 10 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 10UV 8Dec 22UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Hopatcong Hills in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Hopatcong Hills 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 Hopatcong Hills?

Hopatcong Hills sits at 40.9°N, 74.7°W, 1,102 ft above sea level, in United States. The nearest listed city is Sparta, 6.2 mi away.

Topography around Hopatcong Hills

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

Within 2 miles, the terrain around Hopatcong Hills has only modest variations in elevation — a maximum elevation change of 531 ft around an average of 968 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 932 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,467 ft.

The land around Hopatcong Hills is covered by trees (73%) within 2 miles, trees (80%) within 10 miles, and trees (74%) within 50 miles.

2 miles
531 ft
10 miles
932 ft
50 miles
2,467 ft
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Sparta 6.2 mi · Dover 6.8 mi · Randolph 8.1 mi · Denville 11 mi · Parsippany 14 mi · Morristown 14 mi · Basking Ridge 17 mi · Madison 19 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 Hopatcong Hills (40.944°, -74.6707°, elevation 1,102 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).