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Spring Weather in Arches National Park Utah, United States

Daily high temperatures increase by 29°F, from 55°F to 85°F, rarely falling below 45°F or exceeding 94°F.

Daily low temperatures increase by 25°F, from 33°F to 57°F, rarely falling below 24°F or exceeding 66°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.

Average High and Low Temperature in the Spring in Arches National Park

Average High and Low Temperature in the Spring in Arches National ParkMarAprMay10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FWinterSummerMar 155°FMar 155°F33°F33°FMay 3185°FMay 3185°F57°F57°FApr 165°FApr 165°F39°F39°FMay 173°FMay 173°F47°F47°F
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average spring temperatures. 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.

Average Hourly Temperature in the Spring in Arches National Park

Average Hourly Temperature in the Spring in Arches National ParkMarAprMay12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMWinterSummerfreezingvery coldcoldcoolcomfortablewarmhotwarmfreezing
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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The spring in Arches National Park experiences rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 45% to 29%. The highest chance of overcast or mostly cloudy conditions is 45% on March 2.

The clearest day of the spring is May 31, with clear, mostly clear, or partly cloudy conditions 71% 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%.

Cloud Cover Categories in the Spring in Arches National Park

Cloud Cover Categories in the Spring in Arches National ParkMarAprMay0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%WinterSummerSep 1880%Sep 1880%Mar 155%Mar 155%May 3171%May 3171%Apr 159%Apr 159%May 163%May 163%clearmostly clearpartly cloudyovercastmostly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

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 the spring is gradually decreasing, starting the season at 11% and ending it at 8%.

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.

Probability of Precipitation in the Spring in Arches National Park

Probability of Precipitation in the Spring in Arches National ParkMarAprMay0%0%2%2%4%4%6%6%8%8%10%10%12%12%WinterSummerMar 2012%Mar 2012%Mar 111%Mar 111%May 318%May 318%Apr 111%Apr 111%May 112%May 112%mixedrainsnow
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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

The average sliding 31-day rainfall during the spring in Arches National Park is essentially constant, remaining about 0.5 inches throughout, and rarely exceeding 1.3 inches.

The highest average 31-day accumulation is 0.6 inches on April 30.

Average Monthly Rainfall in the Spring in Arches National Park

Average Monthly Rainfall in the Spring in Arches National ParkMarAprMay0.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 in1.4 in1.4 inWinterSummerApr 300.6 inApr 300.6 inMar 10.5 inMar 10.5 inMay 310.4 inMay 310.4 inApr 10.5 inApr 10.5 in
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of the spring in Arches National Park, the length of the day is very rapidly increasing. From the start to the end of the season, the length of the day increases by 3 hours, 19 minutes, implying an average daily increase of 2 minutes, 11 seconds, and weekly increase of 15 minutes, 20 seconds.

The shortest day of the spring is March 1, with 11 hours, 22 minutes of daylight and the longest day is May 31, with 14 hours, 42 minutes of daylight.

Hours of Daylight and Twilight in the Spring in Arches National Park

Hours of Daylight and Twilight in the Spring in Arches National ParkMarAprMay0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrWinterSummerMar 1912 hr, 8 minMar 1912 hr, 8 minnightnightdaydayMay 3114 hr, 42 minMay 3114 hr, 42 minMay 113 hr, 51 minMay 113 hr, 51 min
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The latest sunrise of the spring in Arches National Park is 7:36 AM on March 10 and the earliest sunrise is 1 hour, 41 minutes earlier at 5:55 AM on May 31.

The earliest sunset is 6:11 PM on March 1 and the latest sunset is 2 hours, 25 minutes later at 8:37 PM on May 31.

Daylight saving time (DST) starts at 3:00 AM on March 10, 2024, shifting sunrise and sunset to be an hour later.

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.

Sunrise & Sunset with Twilight and Daylight Saving Time in the Spring in Arches National Park

Sunrise & Sunset with Twilight and Daylight Saving Time in the Spring in Arches National ParkMarAprMay2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMWinterSummer5:55 AM5:55 AMMay 318:37 PMMay 318:37 PM6:49 AM6:49 AMMar 16:11 PMMar 16:11 PM7:02 AM7:02 AMApr 17:42 PMApr 17:42 PM6:20 AM6:20 AMMay 18:11 PMMay 18:11 PMMar 10DSTMar 10DSTSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the spring. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

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.

Solar Elevation and Azimuth in the Spring in Arches National Park

Solar Elevation and Azimuth in the Spring in Arches National ParkMarAprMay12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMWinterSummer001020303040506001010203040506070
northeastsouthwest
Solar elevation and azimuth in the the spring of 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for the spring of 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.

Moon Rise, Set & Phases in the Spring in Arches National Park

Moon Rise, Set & Phases in the Spring in Arches National ParkMarAprMay12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMWinterSummerFeb 94:00 PMFeb 94:00 PMFeb 245:31 AMFeb 245:31 AMMar 103:01 AMMar 103:01 AMMar 251:01 AMMar 251:01 AMApr 812:22 PMApr 812:22 PMApr 235:50 PMApr 235:50 PMMay 79:23 PMMay 79:23 PMMay 237:54 AMMay 237:54 AMJun 66:38 AMJun 66:38 AMJun 217:09 PMJun 217:09 PM7:28 AM7:28 AM5:40 PM5:40 PM5:25 PM5:25 PM7:19 AM7:19 AM7:56 AM7:56 AM8:05 PM8:05 PM7:15 PM7:15 PM7:27 AM7:27 AM6:47 AM6:47 AM8:08 PM8:08 PM8:07 PM8:07 PM6:39 AM6:39 AM8:15 PM8:15 PM8:06 PM8:06 PM5:42 AM5:42 AM5:35 AM5:35 AM9:32 PM9:32 PM9:07 PM9:07 PM6:04 AM6:04 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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 the spring, 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.

Humidity Comfort Levels in the Spring in Arches National Park

Humidity Comfort Levels in the Spring in Arches National ParkMarAprMay0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%WinterSummerApr 160%Apr 160%Mar 10%Mar 10%May 310%May 310%Apr 10%Apr 10%May 10%May 10%drydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 increasing during the spring, increasing from 7.7 miles per hour to 8.5 miles per hour over the course of the season.

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 highest daily average wind speed during the spring is 8.8 miles per hour on April 10.

Average Wind Speed in the Spring in Arches National Park

Average Wind Speed in the Spring in Arches National ParkMarAprMay0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphWinterSummerApr 108.8 mphApr 108.8 mphMar 17.7 mphMar 17.7 mphMay 318.5 mphMay 318.5 mphMay 18.6 mphMay 18.6 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Arches National Park throughout the spring is predominantly from the south, with a peak proportion of 41% on March 1.

Wind Direction in the Spring in Arches National Park

Wind Direction in the Spring in Arches National ParkMarAprMay0%100%20%80%40%60%60%40%80%20%100%0%WinterSummerwestsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

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.

During the spring in Arches National Park, the chance that a given day is within the growing season is very rapidly increasing rising from 1% to 100% over the course of the season.

Time Spent in Various Temperature Bands and the Growing Season in the Spring in Arches National Park

Time Spent in Various Temperature Bands and the Growing Season in the Spring in Arches National Parkgrowing seasonMarAprMay0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%WinterSummerMar 11%Mar 11%100%May 31100%May 31Apr 128%Apr 128%90%May 190%May 1freezingvery coldcoldcoolwarmhotcomfortablefrigid
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is 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 the spring, increasing by 799°F, from 22°F to 820°F, over the course of the season.

Growing Degree Days in the Spring in Arches National Park

Growing Degree Days in the Spring in Arches National ParkMarAprMay100°F100°F200°F200°F300°F300°F400°F400°F500°F500°F600°F600°F700°F700°F800°F800°F900°F900°FWinterSummerMar 122°FMar 122°FMay 31820°FMay 31820°FApr 1122°FApr 1122°FMay 1354°FMay 1354°F
The average growing degree days accumulated over the course of the spring, with 25th to 75th and 10th to 90th percentile bands.

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 very rapidly increasing during the spring, rising by 3.7 kWh, from 4.5 kWh to 8.2 kWh, over the course of the season.

Average Daily Incident Shortwave Solar Energy in the Spring in Arches National Park

Average Daily Incident Shortwave Solar Energy in the Spring in Arches National ParkMarAprMay0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh10 kWh10 kWhWinterSummerMar 14.5 kWhMar 14.5 kWhMay 318.2 kWhMay 318.2 kWhApr 16.1 kWhApr 16.1 kWhMay 17.2 kWhMay 17.2 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Arches National Park are 38.723 deg latitude, -109.586 deg longitude, and 4,022 ft elevation.

The topography within 2 miles of Arches National Park contains significant variations in elevation, with a maximum elevation change of 771 feet and an average elevation above sea level of 4,808 feet. Within 10 miles contains significant variations in elevation (2,149 feet). Within 50 miles contains large variations in elevation (8,921 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%).

This report illustrates the typical weather in Arches National Park, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used for this report can be found on the Moab page.

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The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

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