Hillside weather in July

In July, Hillside sees average daytime highs of 84°F and overnight lows near 69°F, with 4.2 in of rain across 11 wet days and about 14.6 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 84°F through the month. The sky is clear or mostly clear about 27% of the time in July, and the air most often feels muggy.

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 Hillside's 6th-clearest and 11th-windiest month. For the whole year in context, see Hillside's year-round climate.

Daytime high
84°
1st warmest
Overnight low
69°
12th coldest
Rainfall
4.2 in
11 wet days
Daylight
14 h 36 min
4:43 AM – 7:22 PM
Cloud cover
59%
6th clearest
Wind
6 mph
11th windiest
Solar energy
5.86 kWh/m²
Travel score
5.4
out of 10

Hillside is township in Union County, New Jersey, United States.

Founded
1913

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 84°F through the month.

A typical July day in Hillside reaches about 84°F in the afternoon and slips back to 69°F overnight — a 15°F spread between the day's warmth and the night's chill. On most days the high lands between 76°F and 92°F. Set against its neighbours, July runs about 5°F warmer than June and about 2°F warmer than August.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18368
28368
38368
48368
58368
68469
78469
88469
98469
108469
118469
128469
138469
148469
158469
168470
178470
188470
198470
208470
218470
228470
238470
248470
258470
268470
278470
288469
298469
308469
318469

How July really feels in Hillside

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.

Hillside weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan38° / 25°3.49.24.69.40.0
Feb40° / 26°3.18.43.910.40.1
Mar48° / 34°4.210.23.511.71.8
Apr60° / 44°3.710.80.413.14.6
May70° / 54°3.611.7014.26.2
Jun79° / 64°4.111.2014.96.4
Jul84° / 69°4.211014.65.4
Aug82° / 68°4.010.7013.66.1
Sep75° / 60°4.09.4012.36.9
Oct64° / 49°3.98.70.110.95.8
Nov52° / 39°3.18.20.59.73.0
Dec43° / 31°4.09.739.10.5

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% 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 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25050
35050
45149
55149
65149
75248
85248
95248
105248
115347
125347
135248
145248
155248
165050
175050
185050
194852
204852
214951
224951
234852
244852
254852
264852
274852
284852
294852
304951
314951

Chance of precipitation in July

Any precipitation

Hillside gets around 4.2 in of rain over 11 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 36% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
436
535
635
735
835
934
1034
1134
1234
1334
1435
1535
1635
1735
1836
1936
2037
2137
2237
2337
2437
2537
2638
2738
2838
2938
3037
3137

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the muggy band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 49% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
19222729120
29222730120
39222729130
49212729130
59212729130
69202830130
79202829141
89192830141
99192830141
108182830151
118182830151
128172831161
138172831161
147172831171
157162831171
167162831171
177162831181
187152832181
197152732191
206142733191
216142733191
226132733191
236132734191
246132734190
256132834200
266132834200
276132834200
286132833200
296132833190
306132833190
317132833190

Wind in July

Winds average 6 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
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
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 4:34 AM to 4:56 AM, and sunset from 7:27 PM to 7:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:347:27
214.94:347:27
314.94:357:27
414.94:357:26
514.84:367:26
614.84:367:26
714.84:377:26
814.84:387:25
914.84:387:25
1014.84:397:25
1114.74:397:24
1214.74:407:24
1314.74:417:24
1414.74:427:23
1514.74:427:23
1614.64:437:22
1714.64:447:21
1814.64:457:21
1914.64:457:20
2014.64:467:19
2114.54:477:19
2214.54:487:18
2314.54:497:17
2414.44:507:16
2514.44:517:16
2614.44:527:15
2714.44:527:14
2814.34:537:13
2914.34:547:12
3014.34:557:11
3114.24:567:10

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.86 kWh/m².

For context, solar energy here swings from a low near 1.75 kWh/m² to a high of 5.92 kWh/m² in June across the year — July's 5.86 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
106.0Intense
116.0Intense
126.0Intense
136.0Bright
146.0Bright
155.9Bright
165.9Bright
175.9Bright
185.8Bright
195.8Bright
205.8Bright
215.7Bright
225.7Bright
235.7Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in July

Hazard calendar for Hillside

In seasonPeak

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

Hillside 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 Hillside?

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

5.4
Sightseeing
6th-best month of the year
6.8
Beach & pool
1st-best month of the year

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

What to pack for Hillside in July

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

In July, Hillside sees daytime highs around 84°F and nights near 69°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Hillside in July

The nearest coast averages about 72°F in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 mi away) is warmest in August at about 74°F and coldest in February near 40°F.

It's comfortable for a long swim from Jun 30 to Sep 26 — about 2.9 months when the water holds above 68°F.

40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan43Bracing
Feb40Bracing
Mar41Bracing
Apr46Bracing
May55Bracing
Jun65Cool
Jul72Refreshing
Aug74Refreshing
Sep71Refreshing
Oct63Cool
Nov55Bracing
Dec48Bracing

UV index in Hillside 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 Hillside peaks around July 11 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. 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 11UV 8Dec 22UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun8Very high
Jul8Very high
Aug6High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low

Air quality in Hillside 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 Hillside is worst in July — around 18 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (November, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJul 1318 µg/m³Nov 1410 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb15Moderate
Mar16Moderate
Apr16Moderate
May17Moderate
Jun17Moderate
Jul18Moderate
Aug16Moderate
Sep14Moderate
Oct11Good
Nov10Good
Dec12Good
Location & terrain

Where is Hillside?

Hillside sits at 40.7°N, 74.2°W, 98 ft above sea level, in United States. The nearest listed city is Union, 1.9 mi away.

Topography around Hillside

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

Within 2 miles, the terrain around Hillside has only modest variations in elevation — a maximum elevation change of 230 ft around an average of 102 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 764 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,008 ft.

The land around Hillside is covered by artificial surfaces (60%) and trees (32%) within 2 miles, trees (44%) and artificial surfaces (39%) within 10 miles, and trees (57%) and water (21%) within 50 miles.

2 miles
230 ft
10 miles
764 ft
50 miles
2,008 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: Union 1.9 mi · Irvington 1.9 mi · Elizabeth 2.5 mi · Maplewood 3.1 mi · South Orange 3.7 mi · Roselle 3.7 mi · Newark 3.7 mi · Millburn 4.3 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 Hillside (40.7012°, -74.2301°, elevation 98 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). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).