Rochester weather in July

In July, Rochester sees average daytime highs of 80°F and overnight lows near 63°F, with 3.5 in of rain across 11.1 wet days and about 14.9 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 80°F through the month. The sky is clear or mostly clear about 28% of the time in July, and the air most often feels humid.

Daylight stretches from about 15 h 12 min at the start of July to 14 h 24 min by month's end. Set against the rest of the year, July is Rochester's 6th-clearest and 11th-windiest month. For the whole year in context, see Rochester's year-round climate.

Daytime high
80°
1st warmest
Overnight low
63°
12th coldest
Rainfall
3.5 in
11.1 wet days
Daylight
14 h 54 min
4:22 AM – 7:17 PM
Cloud cover
59%
6th clearest
Wind
6 mph
11th windiest
Solar energy
5.99 kWh/m²
Travel score
6.4
out of 10

Rochester is city in Strafford County, New Hampshire, United States.

Density
253/km²
people per km²
Founded
1749

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 80°F through the month.

A typical July day in Rochester reaches about 80°F in the afternoon and slips back to 63°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 71°F and 89°F. Set against its neighbours, July runs about 5°F warmer than June and about 1°F warmer than August.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
17962
27962
37962
47962
57962
67962
78062
88062
98063
108063
118063
128063
138063
148063
158063
168063
178063
188063
198063
208063
218063
228064
238064
248064
258064
268064
278064
288063
298063
308063
318063

How July really feels in Rochester

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.

Rochester weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan31° / 17°3.39.56.99.20.0
Feb34° / 18°3.296.810.20.0
Mar42° / 26°4.210.85.811.60.4
Apr54° / 38°4.110.91.913.23.2
May65° / 47°3.110.70.114.55.6
Jun74° / 57°3.811.8015.16.4
Jul80° / 63°3.511.1014.96.4
Aug78° / 61°3.49.5013.86.8
Sep71° / 54°3.48.6012.36.8
Oct59° / 43°4.29.50.310.84.7
Nov47° / 33°3.69.21.59.51.6
Dec37° / 24°4.310.25.68.80.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 22% of July, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34852
44951
55050
65149
75149
85149
95248
105248
115248
125347
135248
145248
155248
165149
175149
184951
194852
204852
214753
224753
234852
244753
254753
264753
274753
284852
294852
304852
314951

Chance of precipitation in July

Any precipitation

Rochester gets around 3.5 in of rain over 11.1 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 37% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
436
536
636
735
835
936
1036
1136
1236
1336
1437
1537
1637
1737
1837
1937
2038
2138
2238
2338
2437
2537
2637
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 30% of days. Sticky, muggy-or-worse air turns up on roughly 27% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1252527194
2252528194
3242628194
4232628194
5232728194
6222728194
7212828194
8212828194
9202828204
10202928204
11192828214
12182828224
13182828224
14182828234
15172729234
16172729244
17162629244
18162530244
19162530254
20152431255
21152331265
22152332265
23142332265
24142232265
25142232265
26142233265
27142233265
28152233265
29152232255
30152232255
31162232255

Wind in July

Winds average 6 mph in July.

Across July, 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.

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
306calm
316calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 h 12 min at the start of July to 14 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over July. Sunrise moves from 4:12 AM to 4:37 AM, and sunset from 7:22 PM to 7:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.24:127:22
215.24:127:22
315.24:137:22
415.14:147:22
515.14:147:22
615.14:157:22
715.14:157:21
815.14:167:21
915.14:177:21
1015.04:177:20
1115.04:187:20
1215.04:197:19
1315.04:207:19
1415.04:207:18
1514.94:217:18
1614.94:227:17
1714.94:237:16
1814.94:247:16
1914.84:257:15
2014.84:267:14
2114.84:277:13
2214.74:287:12
2314.74:287:12
2414.74:297:11
2514.74:307:10
2614.64:317:09
2714.64:327:08
2814.64:337:07
2914.54:347:06
3014.54:367:05
3114.44:377:03

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.99 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.54 kWh/m² to a high of 5.99 kWh/m² in July across the year — July's 5.99 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.0Intense
146.0Intense
156.0Bright
166.0Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in July

Hazard calendar for Rochester

In seasonPeak

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

Rochester 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 Rochester?

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

6.4
Sightseeing
3rd-best month of the year
6.3
Beach & pool
2nd-best month of the year

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

What to pack for Rochester in July

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

In July, Rochester sees daytime highs around 80°F and nights near 63°F. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Rochester in July

The nearest coast averages about 63°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 22 mi away) is warmest in August at about 65°F and coldest in March near 38°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

40°50°60°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan42Bracing
Feb39Bracing
Mar38Bracing
Apr42Bracing
May49Bracing
Jun57Bracing
Jul63Cool
Aug65Cool
Sep62Cool
Oct55Bracing
Nov49Bracing
Dec45Bracing

UV index in Rochester in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rochester peaks around July 10 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighModerateModerateLowJul 10UV 7Dec 23UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun7High
Jul7Very high
Aug4Moderate
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Rochester?

Rochester sits at 43.3°N, 71.0°W, 230 ft above sea level, in United States. The nearest listed city is Dover, 8.7 mi away.

Topography around Rochester

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

Within 2 miles, the terrain around Rochester has only modest variations in elevation — a maximum elevation change of 318 ft around an average of 292 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,414 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,019 ft.

The land around Rochester is covered by trees (71%) within 2 miles, trees (85%) within 10 miles, and trees (72%) and water (22%) within 50 miles.

2 miles
318 ft
10 miles
1,414 ft
50 miles
4,019 ft
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Dover 8.7 mi · Sanford 14 mi · Portsmouth 19 mi · East Concord 29 mi · Concord 29 mi · Laconia 29 mi · Biddeford 29 mi · Saco 30 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 Rochester (43.3045°, -70.9756°, elevation 230 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).