Average Weather in April in Whitney Nevada, United States
Daily high temperatures increase by 8°F, from 78°F to 86°F, rarely falling below 66°F or exceeding 96°F.
Daily low temperatures increase by 8°F, from 54°F to 62°F, rarely falling below 45°F or exceeding 70°F.
For reference, on July 12, the hottest day of the year, temperatures in Whitney typically range from 81°F to 106°F, while on December 25, the coldest day of the year, they range from 38°F to 57°F.
Average High and Low Temperature in April
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
The month of April in Whitney experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 28% throughout the month.
The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 74% of the time.
For reference, on February 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 39%, while on June 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 88%.
Cloud Cover Categories in April
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Whitney, the chance of a wet day over the course of April is gradually decreasing, starting the month at 5% and ending it at 2%.
For reference, the year's highest daily chance of a wet day is 12% on February 22, and its lowest chance is 1% on June 12.
Probability of Precipitation in April
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 Whitney is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.8 inches.
Average Monthly Rainfall in April
Over the course of April in Whitney, 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, 2 minutes, implying an average daily increase of 2 minutes, 9 seconds, and weekly increase of 15 minutes, 2 seconds.
The shortest day of the month is April 1, with 12 hours, 37 minutes of daylight and the longest day is April 30, with 13 hours, 39 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Whitney is 6:25 AM on April 1 and the earliest sunrise is 38 minutes earlier at 5:47 AM on April 30.
The earliest sunset is 7:02 PM on April 1 and the latest sunset is 25 minutes later at 7:27 PM on April 30.
Daylight saving time is observed in Whitney during 2020, 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 5:23 AM and sets 14 hours, 37 minutes later, at 8:00 PM, while on December 21, the shortest day of the year, it rises at 6:47 AM and sets 9 hours, 42 minutes later, at 4:29 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April
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 Whitney is essentially constant during April, remaining around 0% throughout.
For reference, on August 5, the muggiest day of the year, there are muggy conditions 4% 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
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Whitney is essentially constant during April, remaining within 0.2 miles per hour of 9.2 miles per hour throughout.
For reference, on April 25, the windiest day of the year, the daily average wind speed is 9.4 miles per hour, while on August 27, the calmest day of the year, the daily average wind speed is 7.2 miles per hour.
The highest daily average wind speed during April is 9.4 miles per hour on April 25.
Average Wind Speed in April
The hourly average wind direction in Whitney throughout April is predominantly from the west, with a peak proportion of 39% on April 30.
Wind Direction in April
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 Whitney typically lasts for 11 months (320 days), from around January 24 to around December 9, rarely starting after February 18, or ending before November 19.
The month of April in Whitney is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in April
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 Whitney are rapidly increasing during April, increasing by 539°F, from 624°F to 1,163°F, over the course of the month.
Growing Degree Days in April
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 Whitney is increasing during April, rising by 1.1 kWh, from 6.6 kWh to 7.7 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in April
For the purposes of this report, the geographical coordinates of Whitney are 36.098 deg latitude, -115.036 deg longitude, and 1,696 ft elevation.
The topography within 2 miles of Whitney contains only modest variations in elevation, with a maximum elevation change of 328 feet and an average elevation above sea level of 1,665 feet. Within 10 miles contains only modest variations in elevation (2,838 feet). Within 50 miles contains large variations in elevation (11,234 feet).
The area within 2 miles of Whitney is covered by shrubs (74%) and artificial surfaces (20%), within 10 miles by shrubs (73%) and artificial surfaces (24%), and within 50 miles by shrubs (92%).
This report illustrates the typical weather in Whitney year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Whitney.
For each station, the records are corrected for the elevation difference between that station and Whitney according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Whitney is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Whitney and a given station.
The stations contributing to this reconstruction are: McCarran International Airport (30%, 12 kilometers, west); Nellis Air Force Base (33%, 17 kilometers, north); North Las Vegas Air Terminal (20%, 19 kilometers, northwest); and Boulder City Municipal Airport (17%, 23 kilometers, southeast).
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.