Sunnyside weather in July

In July, Sunnyside sees average daytime highs of 91°F and overnight lows near 63°F, with 0.2 in of rain across 1.3 wet days and about 15.2 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 88°F in the first days to 93°F by the end. The sky is clear or mostly clear about 72% of the time in July, and the air most often feels dry.

Daylight stretches from about 15 h 36 min at the start of July to 14 h 42 min by month's end. Set against the rest of the year, July is Sunnyside's 1st-clearest and 5th-windiest month. For the whole year in context, see Sunnyside's year-round climate.

Daytime high
91°
1st warmest
Overnight low
63°
12th coldest
Rainfall
0.2 in
1.3 wet days
Daylight
15 h 18 min
4:28 AM – 7:43 PM
Cloud cover
24%
1st clearest
Wind
5 mph
5th windiest
Solar energy
7.84 kWh/m²
Travel score
4.6
out of 10

Sunnyside is city in Yakima County, Washington, United States.

Density
950/km²
people per km²
Founded
1902

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 88°F in the first days to 93°F by the end.

A typical July day in Sunnyside reaches about 91°F in the afternoon and slips back to 63°F overnight — a 29°F spread between the day's warmth and the night's chill. On most days the high lands between 81°F and 101°F. Set against its neighbours, July runs about 9°F warmer than June and about 1°F warmer than August.

60°80°100°151015202531
Avg high (°F)Avg low (°F)
18860
28861
38961
48961
58961
68961
79062
89062
99062
109062
119162
129162
139162
149163
159163
169163
179263
189263
199263
209263
219263
229363
239364
249364
259364
269364
279364
289364
299364
309364
319364

How July really feels in Sunnyside

Once humidity and wind are folded in, July averages 25 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
25
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sunnyside weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan40° / 28°1.59.23.58.80.1
Feb47° / 31°1.16.31.9101.5
Mar55° / 36°1.06.60.611.63.9
Apr65° / 43°0.74.60.113.36.5
May75° / 51°0.74.2014.77.7
Jun82° / 57°0.43015.57.2
Jul91° / 63°0.21.3015.24.6
Aug90° / 61°0.21.10145.1
Sep80° / 53°0.31.9012.38.0
Oct64° / 43°1.05.10.110.76.4
Nov48° / 34°1.37.819.22.0
Dec39° / 28°1.793.58.50.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of July, with mostly cloudy or overcast conditions the remaining 14%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
28020
38020
48119
58218
68218
78317
88317
98416
108416
118416
128515
138515
148515
158515
168515
178614
188614
198614
208713
218812
228911
238911
248911
259010
269010
279010
289010
29919
30919
319010

Chance of precipitation in July

Any precipitation

Sunnyside gets around 0.2 in of rain over 1.3 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 4% and peaks near 5% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
15
25
35
45
55
64
74
84
94
105
115
125
135
145
155
165
175
185
195
205
215
225
234
244
254
264
273
283
293
303
313

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 99% 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
71000
81000
91000
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991
31991

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
56calm
66calm
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 15 h 36 min at the start of July to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over July. Sunrise moves from 4:17 AM to 4:44 AM, and sunset from 7:50 PM to 7:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.64:177:50
215.54:177:50
315.54:187:50
415.54:187:49
515.54:197:49
615.54:207:49
715.54:207:48
815.44:217:48
915.44:227:48
1015.44:237:47
1115.44:247:47
1215.44:247:46
1315.34:257:45
1415.34:267:45
1515.34:277:44
1615.34:287:43
1715.24:297:43
1815.24:307:42
1915.24:317:41
2015.14:327:40
2115.14:337:39
2215.14:347:38
2315.04:357:37
2415.04:367:36
2515.04:377:35
2614.94:387:34
2714.94:407:33
2814.94:417:32
2914.84:427:31
3014.84:437:29
3114.74:447:28

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 7.84 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.3 kWh/m² to a high of 7.84 kWh/m² in July across the year — July's 7.84 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.8Intense
27.9Intense
37.9Intense
47.9Intense
57.9Intense
67.9Intense
77.9Intense
87.9Intense
97.9Intense
107.9Intense
117.9Intense
127.9Intense
137.9Intense
147.9Intense
157.8Intense
167.8Intense
177.8Intense
187.8Intense
197.8Intense
207.8Intense
217.8Intense
227.7Intense
237.7Intense
247.7Intense
257.7Intense
267.7Intense
277.6Intense
287.6Intense
297.6Intense
307.5Intense
317.5Intense
Planning a trip in July

Is July a good time to visit Sunnyside?

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

4.6
Sightseeing
7th-best month of the year
8.0
Beach & pool
2nd-best month of the year

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

What to pack for Sunnyside in July

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

In July, Sunnyside sees daytime highs around 91°F and nights near 63°F. Pack light clothes and sun protection.

light clothessun protection

UV index in Sunnyside in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sunnyside peaks around July 16 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowJul 16UV 8Dec 14UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May7Very high
Jun6High
Jul9Very high
Aug6High
Sep5Moderate
Oct4Moderate
Nov1Low
Dec1Low

Air quality in Sunnyside 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 Sunnyside is worst in August — around 30 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (December, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 2029 µg/m³Dec 178 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar12Good
Apr10Good
May9Good
Jun10Good
Jul13Moderate
Aug30Moderate
Sep23Moderate
Oct10Good
Nov10Good
Dec7Good
Location & terrain

Where is Sunnyside?

Sunnyside sits at 46.3°N, 120.0°W, 745 ft above sea level, in United States. The nearest listed city is Yakima, 30 mi away.

Topography around Sunnyside

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

Within 2 miles, the terrain around Sunnyside has only modest variations in elevation — a maximum elevation change of 289 ft around an average of 764 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,152 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 5,568 ft.

The land around Sunnyside is covered by cropland (34%), grassland (29%) and artificial surfaces (24%) within 2 miles, grassland (46%) and cropland (38%) within 10 miles, and grassland (62%) and cropland (24%) within 50 miles.

2 miles
289 ft
10 miles
2,152 ft
50 miles
5,568 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Yakima 30 mi · Richland 35 mi · Tri-Cities 39 mi · Kennewick 42 mi · Pasco 43 mi · Hermiston 48 mi · Ellensburg 53 mi · Moses Lake 66 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 Sunnyside (46.3237°, -120.0087°, elevation 745 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).