June Weather in Maquoketa Iowa, United States

Daily high temperatures increase by 6°F, from 76°F to 83°F, rarely falling below 66°F or exceeding 91°F.

Daily low temperatures increase by 7°F, from 57°F to 63°F, rarely falling below 47°F or exceeding 71°F.

For reference, on July 19, the hottest day of the year, temperatures in Maquoketa typically range from 65°F to 84°F, while on January 22, the coldest day of the year, they range from 14°F to 29°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on June. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Vostochny, Russia (5,855 miles away); Aghavnadzor, Armenia (6,149 miles); and Koksan, North Korea (6,386 miles) are the far-away foreign places with temperatures most similar to Maquoketa (view comparison).

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The month of June in Maquoketa experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 46% to 37%.

The clearest day of the month is June 30, with clear, mostly clear, or partly cloudy conditions 63% of the time.

For reference, on December 29, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 57%, while on August 26, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 69%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Maquoketa, the chance of a wet day over the course of June is essentially constant, remaining around 40% throughout.

For reference, the year's highest daily chance of a wet day is 41% on June 26, and its lowest chance is 12% on January 28.

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during June in Maquoketa is essentially constant, remaining about 4.1 inches throughout, and rarely exceeding 7.5 inches or falling below 1.4 inches.

The highest average 31-day accumulation is 4.3 inches on June 16.

Over the course of June in Maquoketa, the length of the day is essentially constant. The shortest day of the month is June 1, with 15 hours, 3 minutes of daylight and the longest day is June 20, with 15 hours, 15 minutes of daylight.

The earliest sunrise of the month in Maquoketa is 5:26 AM on June 14 and the latest sunrise is 4 minutes later at 5:30 AM on June 30.

The earliest sunset is 8:32 PM on June 1 and the latest sunset is 10 minutes later at 8:42 PM on June 26.

Daylight saving time is observed in Maquoketa during 2026, but it neither starts nor ends during June, so the entire month is in daylight saving time.

For reference, on June 21, the longest day of the year, the Sun rises at 5:27 AM and sets 15 hours, 15 minutes later, at 8:42 PM, while on December 21, the shortest day of the year, it rises at 7:27 AM and sets 9 hours, 6 minutes later, at 4:34 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for June 2026. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in Maquoketa is very rapidly increasing during June, rising from 11% to 35% over the course of the month.

For reference, on July 21, the muggiest day of the year, there are muggy conditions 47% of the time, while on November 15, the least muggy day of the year, there are muggy conditions 0% of the time.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Maquoketa is decreasing during June, decreasing from 9.7 miles per hour to 8.6 miles per hour over the course of the month.

For reference, on March 23, the windiest day of the year, the daily average wind speed is 12.4 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 7.7 miles per hour.

The hourly average wind direction in Maquoketa throughout June is predominantly from the south, with a peak proportion of 36% on June 22.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Maquoketa typically lasts for 5.8 months (178 days), from around April 17 to around October 12, rarely starting before March 30 or after May 4, and rarely ending before September 23 or after October 31.

The month of June in Maquoketa is reliably fully within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Maquoketa are rapidly increasing during June, increasing by 580°F, from 572°F to 1,151°F, over the course of the month.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in Maquoketa is essentially constant during June, remaining within 0.2 kWh of 6.8 kWh throughout.

For the purposes of this report, the geographical coordinates of Maquoketa are 42.069 deg latitude, -90.666 deg longitude, and 699 ft elevation.

The topography within 2 miles of Maquoketa contains only modest variations in elevation, with a maximum elevation change of 180 feet and an average elevation above sea level of 705 feet. Within 10 miles also contains only modest variations in elevation (367 feet). Within 50 miles contains only modest variations in elevation (817 feet).

The area within 2 miles of Maquoketa is covered by cropland (76%) and artificial surfaces (21%), within 10 miles by cropland (92%), and within 50 miles by cropland (85%).