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April Weather in Arches National Park Utah, United States

Daily high temperatures increase by 9°F, from 65°F to 73°F, rarely falling below 52°F or exceeding 84°F.

Daily low temperatures increase by 8°F, from 39°F to 47°F, rarely falling below 30°F or exceeding 57°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 April in Arches National Park

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 temperatures for the quarter of the year centered on April. 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 April in Arches National Park

Average Hourly Temperature in April in Arches National ParkApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMayvery coldvery coldcoldcoolcomfortablewarmcomfortable
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 month of April in Arches National Park experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 39% throughout the month.

The clearest day of the month is April 27, with clear, mostly clear, or partly cloudy conditions 64% 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 April in Arches National Park

Cloud Cover Categories in April in Arches National ParkApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 159%Apr 159%Apr 3063%Apr 3063%Apr 1160%Apr 1160%Apr 2162%Apr 2162%clearmostly clearpartly cloudymostly cloudyovercast
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 April is essentially constant, remaining around 12% 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.

Probability of Precipitation in April in Arches National Park

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 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 April in Arches National Park is essentially constant, remaining about 0.6 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 April in Arches National Park

Average Monthly Rainfall in April in Arches National ParkApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 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 inMarMayApr 300.6 inApr 300.6 inApr 10.5 inApr 10.5 inApr 110.5 inApr 110.5 inApr 210.6 inApr 210.6 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 April in Arches National Park, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 9 minutes, implying an average daily increase of 2 minutes, 22 seconds, and weekly increase of 16 minutes, 34 seconds.

The shortest day of the month is April 1, with 12 hours, 40 minutes of daylight and the longest day is April 30, with 13 hours, 49 minutes of daylight.

Hours of Daylight and Twilight in April in Arches National Park

Hours of Daylight and Twilight in April in Arches National ParkApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrMarMaynightnightdaydayApr 112 hr, 40 minApr 112 hr, 40 minApr 3013 hr, 49 minApr 3013 hr, 49 minApr 1613 hr, 17 minApr 1613 hr, 17 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 month in Arches National Park is 7:02 AM on April 1 and the earliest sunrise is 41 minutes earlier at 6:21 AM on April 30.

The earliest sunset is 7:42 PM on April 1 and the latest sunset is 28 minutes later at 8:10 PM on April 30.

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

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

Sunrise & Sunset with Twilight and Daylight Saving Time in April in Arches National ParkApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMMarMay6:21 AM6:21 AMApr 308:10 PMApr 308:10 PM7:02 AM7:02 AMApr 17:42 PMApr 17:42 PM6:46 AM6:46 AMApr 117:52 PMApr 117:52 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of April. 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 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 April in Arches National Park

Solar Elevation and Azimuth in April in Arches National ParkApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMay0010102020203030404050506000010102020303030404050506060
northeastsouthwest
Solar elevation and azimuth over the course of April 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 April 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 April in Arches National Park

Moon Rise, Set & Phases in April in Arches National ParkApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayMar 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 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 AM5:42 AM5:42 AM8:15 PM8:15 PM8:06 PM8:06 PM5:42 AM5:42 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.
Apr 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
50%2:32 AMSE11:26 AMSW-6:59 AMS237,530 mi
2
45%3:26 AMSE12:32 PMSW-7:59 AMS234,161 mi
3
34%4:13 AMESE1:45 PMWSW-8:59 AMS230,799 mi
4
23%4:52 AMESE3:02 PMWSW-9:57 AMS227,710 mi
5
13%5:25 AMESE4:19 PMWSW-10:51 AMS225,194 mi
6
6%5:54 AME5:35 PMW-11:43 AMS223,541 mi
7
1%6:20 AME6:52 PMW-12:34 PMS222,980 mi
8
0%6:47 AME8:08 PMWNW-1:24 PMS223,627 mi
9
2%7:15 AMENE9:26 PMWNW-2:16 PMS225,454 mi
10
6%7:47 AMENE10:43 PMWNW-3:10 PMS228,292 mi
11
14%8:24 AMENE11:57 PMNW-4:07 PMS231,858 mi
12
22%9:09 AMNE--5:05 PMS235,803 mi
13
32%-1:05 AMNW10:01 AMNE6:03 PMS239,774 mi
14
43%-2:04 AMNW11:00 AMNE6:59 PMS243,456 mi
15
50%-2:52 AMNW12:03 PMNE7:51 PMS246,611 mi
16
63%-3:31 AMWNW1:06 PMENE8:39 PMS249,086 mi
17
72%-4:03 AMWNW2:09 PMENE9:23 PMS250,809 mi
18
80%-4:29 AMWNW3:10 PMENE10:04 PMS251,777 mi
19
87%-4:52 AMWNW4:09 PME10:44 PMS252,039 mi
20
93%-5:13 AMW5:08 PME11:22 PMS251,679 mi
21
95%-5:32 AMW6:06 PME--
22
97%-5:53 AMW7:06 PMESE12:01 AMS250,800 mi
23
100%-6:14 AMWSW8:07 PMESE12:41 AMS249,506 mi
24
100%-6:39 AMWSW9:11 PMESE1:23 AMS247,890 mi
25
98%-7:08 AMWSW10:17 PMESE2:10 AMS246,029 mi
26
94%-7:43 AMWSW11:23 PMSE3:00 AMS243,973 mi
27
89%-8:27 AMSW-3:55 AMS241,755 mi
28
81%12:26 AMSE9:20 AMSW-4:53 AMS239,398 mi
29
71%1:23 AMSE10:23 AMSW-5:53 AMS236,933 mi
30
61%2:11 AMSE11:33 AMWSW-6:52 AMS234,412 mi

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 April, 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 April in Arches National Park

Humidity Comfort Levels in April in Arches National ParkApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%MarMayApr 160%Apr 160%Apr 10%Apr 10%Apr 300%Apr 300%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 essentially constant during April, remaining within 0.1 miles per hour of 8.7 miles per hour throughout.

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 April is 8.8 miles per hour on April 10.

Average Wind Speed in April in Arches National Park

Average Wind Speed in April in Arches National ParkApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphMarMayApr 108.8 mphApr 108.8 mphApr 308.6 mphApr 308.6 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 April is predominantly from the south, with a peak proportion of 38% on April 3.

Wind Direction in April in Arches National Park

Wind Direction in April in Arches National ParkApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%MarMaywestsouthnortheast
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 April in Arches National Park, the chance that a given day is within the growing season is very rapidly increasing rising from 28% to 89% over the course of the month.

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

Time Spent in Various Temperature Bands and the Growing Season in April in Arches National Parkgrowing seasonApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 128%Apr 128%89%Apr 3089%Apr 3050%Apr 1150%Apr 1173%Apr 2173%Apr 21Mar 1910%Mar 1910%freezingvery coldcoldcoolcomfortablewarmhot
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 increasing during April, increasing by 221°F, from 122°F to 344°F, over the course of the month.

Growing Degree Days in April in Arches National Park

Growing Degree Days in April in Arches National ParkApr112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030100°F100°F150°F150°F200°F200°F250°F250°F300°F300°F350°F350°F400°F400°F450°F450°FMarMayApr 1122°FApr 1122°FApr 30344°FApr 30344°FApr 11181°FApr 11181°FApr 21256°FApr 21256°F
The average growing degree days accumulated over the course of April, 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 increasing during April, rising by 1.1 kWh, from 6.1 kWh to 7.2 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in April in Arches National Park

Average Daily Incident Shortwave Solar Energy in April in Arches National ParkApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhMarMayApr 16.1 kWhApr 16.1 kWhApr 307.2 kWhApr 307.2 kWhApr 116.5 kWhApr 116.5 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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