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Climate · Dubuque

Dubuque in August

Hot and damp, as the days shorten.

Typical weather, averaged over 30 years

August in Dubuque is hot: highs near 85°F, lows near 66°F. Rain falls on about two days a week, and the days shorten by 1 hour 13 minutes from the first week to the last.August in Dubuque is hot: highs near 29°C, lows near 19°C. Rain falls on about two days a week, and the days shorten by 1 hour 13 minutes from the first week to the last.

High
85°F29°Caverage
Low
66°F19°Caverage
Wet days
2a week · 33% of days
Daylight
13h 50mon average

Is August a good time to visit Dubuque?

A good month, just outside Dubuque's best months, which run from September.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How August sits in the year

week by week

Temperature

Highs near 85°F in August, against 33°F to 86°F through the year.Highs near 29°C in August, against 1°C to 30°C through the year.

Chance of a wet day

33% of days in August, against 24% to 43% through the year.

Cloud cover

36% cover in August, against 35% to 62% through the year.

Daylight

13h 50m in August, against 9h 07m to 15h 15m through the year.

Week by week, lightly smoothed, with August shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. July86°30°low 67°low 19°2 wet days a weekRain on about two days a week.
  2. August85°29°low 66°low 19°2 wet days a weekRain on about two days a week.
  3. September79°26°low 59°low 15°2 wet days a weekRain on about two days a week.

Where Dubuque sits, in August

America/Chicago
this place
typical high in August 40°F4°C95°F35°C
Sunrise, mid-August
6:09 AMsets 8:06 PM
Above the sea
180 mlow-lying
Latitude
42.5°Nnorthern hemisphere
Nearest of ours
Chicago259 km east

The land around Dubuque, shaded by its typical high in August, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in United States in August

high · low · wet days
See August on the planning mapThe whole year in Dubuque

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Dubuque. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (180 m) against the climate model's (257 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (180 m) against the climate model's (257 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.