Mason City weather in July

In July, Mason City sees average daytime highs of 80°F and overnight lows near 63°F, with 4.0 in of rain across 9.7 wet days and about 14.9 hours of daylight. It is the 1st-warmest and 4th-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 40% 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 Mason City's 2nd-clearest and 11th-windiest month. For the whole year in context, see Mason City's year-round climate.

Daytime high
80°
1st warmest
Overnight low
63°
12th coldest
Rainfall
4.0 in
9.7 wet days
Daylight
14 h 54 min
4:52 AM – 7:45 PM
Cloud cover
51%
2nd clearest
Wind
8 mph
11th windiest
Solar energy
6.38 kWh/m²
Travel score
6.7
out of 10

Mason City is city and the county seat of Cerro Gordo County, Iowa, United States.

Density
376/km²
people per km²

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 Mason City 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 73°F and 88°F. Set against its neighbours, July runs about 3°F warmer than June and about 2°F warmer than August.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18063
28063
38063
48063
58063
68063
78063
88163
98164
108164
118164
128164
138164
148164
158164
168164
178164
188164
198164
208164
218164
228164
238063
248063
258063
268063
278063
288063
298063
308062
318062

How July really feels in Mason City

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.

Mason City weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan24° / 1.16.15.79.20.0
Feb28° / 13°1.25.95.310.20.0
Mar42° / 25°2.48.53.911.60.7
Apr57° / 37°4.011.51.913.13.8
May69° / 49°5.113.60.114.45.8
Jun78° / 60°5.412.6015.16.3
Jul80° / 63°4.09.7014.96.7
Aug78° / 60°4.010.2013.86.9
Sep72° / 52°3.59.3012.36.9
Oct59° / 40°2.78.20.510.84.8
Nov43° / 27°1.96.52.89.50.9
Dec30° / 15°1.56.75.98.90.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 20% of July, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25842
35842
45941
55941
65941
75941
85941
96040
106040
116040
126040
135941
145941
156040
166040
175941
186040
196040
206040
216040
226040
236040
246139
256139
266139
276238
286238
296238
306238
316337

Chance of precipitation in July

Any precipitation

Mason City gets around 4.0 in of rain over 9.7 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 32% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
334
434
534
633
733
833
933
1033
1133
1233
1333
1432
1532
1632
1732
1832
1932
2032
2131
2231
2331
2431
2530
2630
2730
2830
2930
3030
3130

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 29% of days. Sticky, muggy-or-worse air turns up on roughly 42% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
116192826100
216192827110
315192827110
414192827110
513192828110
612192928120
712192929120
811192929120
910182930130
109182930131
119182930141
128182930151
138182829151
148182829161
158182828172
168182828172
178182827182
188182827182
198182726182
208182726182
218182825182
228192825182
239192824182
249202824172
259202923162
269212923162
279213023152
2810223023142
2910223023132
3010233123122
3110233123112

Wind in July

Winds average 8 mph in July.

Across July, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
307light breeze
317light breeze

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 4:41 AM to 5:06 AM, and sunset from 7:51 PM to 7:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.24:417:51
215.14:427:51
315.14:427:51
415.14:437:50
515.14:447:50
615.14:447:50
715.14:457:50
815.14:457:49
915.04:467:49
1015.04:477:49
1115.04:487:48
1215.04:487:48
1315.04:497:47
1414.94:507:47
1514.94:517:46
1614.94:527:45
1714.94:527:45
1814.84:537:44
1914.84:547:43
2014.84:557:42
2114.84:567:42
2214.74:577:41
2314.74:587:40
2414.74:597:39
2514.65:007:38
2614.65:017:37
2714.65:027:36
2814.55:037:35
2914.55:047:34
3014.55:057:33
3114.45:067:32

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.38 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.64 kWh/m² to a high of 6.38 kWh/m² in July across the year — July's 6.38 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in July

Hazard calendar for Mason City

In seasonPeak

In July, Mason City sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Mason City's rainy season runs April–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Mason City?

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

6.7
Sightseeing
3rd-best month of the year
6.7
Beach & pool
1st-best month of the year

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

What to pack for Mason City in July

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

In July, Mason City sees daytime highs around 80°F and nights near 63°F. Pack sun protection. Worth having: light clothes and rain gear. About 10 days see rain.

sun protectionlight clothesrain gear

UV index in Mason City 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 Mason City peaks around June 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 16UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr6High
May7Very high
Jun9Very high
Jul7Very high
Aug7Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Mason City?

Mason City sits at 43.2°N, 93.2°W, 1,129 ft above sea level, in United States. The nearest listed city is Albert Lea, 35 mi away.

Topography around Mason City

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

Within 2 miles, the terrain around Mason City has only modest variations in elevation — a maximum elevation change of 135 ft around an average of 1,129 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 285 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 577 ft.

The land around Mason City is covered by trees (38%) and artificial surfaces (29%) within 2 miles, cropland (77%) within 10 miles, and cropland (89%) within 50 miles.

2 miles
135 ft
10 miles
285 ft
50 miles
577 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Albert Lea 35 mi · Austin 37 mi · Cedar Falls 58 mi · Waterloo 63 mi · Owatonna 64 mi · Fort Dodge 66 mi · Rochester 70 mi · Marshalltown 78 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 Mason City (43.1536°, -93.201°, elevation 1,129 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).