June Weather in Arches National Park Utah, United States

Daily high temperatures increase by 10°F, from 85°F to 94°F, rarely falling below 75°F or exceeding 101°F.

Daily low temperatures increase by 9°F, from 57°F to 66°F, rarely falling below 49°F or exceeding 73°F.

For reference, on July 7, the hottest day of the year, temperatures in Arches National Park typically range from 68°F to 95°F, while on January 4, the coldest day of the year, they range from 20°F to 38°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.

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The month of June in Arches National Park experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 29% to 22%. The lowest chance of overcast or mostly cloudy conditions is 21% on June 21.

The clearest day of the month is June 21, with clear, mostly clear, or partly cloudy conditions 79% of the time.

For reference, on March 2, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 45%, while on September 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 80%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Arches National Park, the chance of a wet day over the course of June is essentially constant, remaining around 7% throughout.

For reference, the year's highest daily chance of a wet day is 18% on July 31, and its lowest chance is 5% on June 13.

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 Arches National Park is essentially constant, remaining about 0.4 inches throughout, and rarely exceeding 1.1 inches.

The lowest average 31-day accumulation is 0.3 inches on June 18.

Over the course of June in Arches National Park, the length of the day is essentially constant. The shortest day of the month is June 1, with 14 hours, 43 minutes of daylight and the longest day is June 20, with 14 hours, 53 minutes of daylight.

The earliest sunrise of the month in Arches National Park is 5:52 AM on June 13 and the latest sunrise is 4 minutes later at 5:57 AM on June 30.

The earliest sunset is 8:37 PM on June 1 and the latest sunset is 9 minutes later at 8:47 PM on June 27.

Daylight saving time is observed in Arches National Park during 2024, but it neither starts nor ends during June, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:53 AM and sets 14 hours, 53 minutes later, at 8:46 PM, while on December 21, the shortest day of the year, it rises at 7:33 AM and sets 9 hours, 27 minutes later, at 5:00 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 2024. 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 Arches National Park is essentially constant during June, remaining around 0% throughout.

For reference, on July 30, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, 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 Arches National Park is gradually decreasing during June, decreasing from 8.4 miles per hour to 7.7 miles per hour over the course of the month.

For reference, on April 10, the windiest day of the year, the daily average wind speed is 8.8 miles per hour, while on January 7, the calmest day of the year, the daily average wind speed is 6.1 miles per hour.

The hourly average wind direction in Arches National Park throughout June is predominantly from the south, with a peak proportion of 41% on June 25.

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 Arches National Park typically lasts for 6.5 months (201 days), from around April 11 to around October 28, rarely starting before March 19 or after May 1, and rarely ending before October 10 or after November 14.

The month of June in Arches National Park 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 Arches National Park are rapidly increasing during June, increasing by 718°F, from 841°F to 1,559°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 Arches National Park is essentially constant during June, remaining within 0.1 kWh of 8.4 kWh throughout.

The highest average daily incident shortwave solar energy during June is 8.5 kWh on June 13.

For the purposes of this report, the geographical coordinates of Arches National Park are 38.723 deg latitude, -109.586 deg longitude, and 0 ft elevation.

The topography within 2 miles of Arches National Park is essentially flat, with a maximum elevation change of 0 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (0 feet). Within 50 miles is also essentially flat (0 feet).

The area within 2 miles of Arches National Park is covered by shrubs (100%), within 10 miles by shrubs (99%), and within 50 miles by shrubs (82%) and trees (10%).