Spring Weather in Portales New Mexico, United States
Daily high temperatures increase by 23°F, from 64°F to 87°F, rarely falling below 49°F or exceeding 97°F.
Daily low temperatures increase by 24°F, from 35°F to 59°F, rarely falling below 25°F or exceeding 66°F.
For reference, on July 1, the hottest day of the year, temperatures in Portales typically range from 66°F to 92°F, while on January 3, the coldest day of the year, they range from 28°F to 52°F.
Average High and Low Temperature in the Spring in Portales
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 Portales
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 spring in Portales experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 38% to 26%.
The clearest day of the spring is May 31, with clear, mostly clear, or partly cloudy conditions 74% of the time.
For reference, on February 23, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 38%, while on October 4, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 78%.
Cloud Cover Categories in the Spring in Portales
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 Portales, the chance of a wet day over the course of the spring is very rapidly increasing, starting the season at 5% and ending it at 26%.
For reference, the year's highest daily chance of a wet day is 31% on August 10, and its lowest chance is 5% on February 7.
Probability of Precipitation in the Spring in Portales
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 Portales is rapidly increasing, starting the season at 0.3 inches, when it rarely exceeds 1.0 inches, and ending the season at 1.8 inches, when it rarely exceeds 3.7 inches or falls below 0.3 inches.
Average Monthly Rainfall in the Spring in Portales
Over the course of the spring in Portales, 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 2 hours, 49 minutes, implying an average daily increase of 1 minute, 51 seconds, and weekly increase of 12 minutes, 58 seconds.
The shortest day of the spring is March 1, with 11 hours, 28 minutes of daylight and the longest day is May 31, with 14 hours, 17 minutes of daylight.
Hours of Daylight and Twilight in the Spring in Portales
The latest sunrise of the spring in Portales is 7:04 AM on March 14 and the earliest sunrise is 1 hour, 22 minutes earlier at 5:42 AM on May 31.
The earliest sunset is 5:49 PM on March 1 and the latest sunset is 2 hours, 10 minutes later at 7:59 PM on May 31.
Daylight saving time (DST) starts at 3:00 AM on March 14, 2021, shifting sunrise and sunset to be an hour later.
For reference, on June 21, the longest day of the year, the Sun rises at 5:42 AM and sets 14 hours, 26 minutes later, at 8:08 PM, while on December 21, the shortest day of the year, it rises at 6:55 AM and sets 9 hours, 52 minutes later, at 4:47 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in the Spring in Portales
The figure below presents a compact representation of key lunar data for the spring of 2021. 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 Portales
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 Portales is essentially constant during the spring, remaining within 1% of 1% throughout.
For reference, on August 8, the muggiest day of the year, there are muggy conditions 8% 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 Portales
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 Portales is essentially constant during the spring, remaining within 0.7 miles per hour of 11.9 miles per hour throughout.
For reference, on April 11, the windiest day of the year, the daily average wind speed is 12.6 miles per hour, while on August 12, the calmest day of the year, the daily average wind speed is 8.8 miles per hour.
The highest daily average wind speed during the spring is 12.6 miles per hour on April 11.
Average Wind Speed in the Spring in Portales
The wind direction in Portales during the spring is predominantly out of the west from March 1 to April 24 and the south from April 24 to May 31.
Wind Direction in the Spring in Portales
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 Portales typically lasts for 7.2 months (220 days), from around April 1 to around November 6, rarely starting before March 11 or after April 21, and rarely ending before October 19 or after November 25.
During the spring in Portales, the chance that a given day is within the growing season is very rapidly increasing rising from 2% to 100% over the course of the season.
Time Spent in Various Temperature Bands and the Growing Season in the Spring in Portales
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 Portales are very rapidly increasing during the spring, increasing by 1,033°F, from 131°F to 1,165°F, over the course of the season.
Growing Degree Days in the Spring in Portales
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 Portales is very rapidly increasing during the spring, rising by 2.7 kWh, from 5.1 kWh to 7.8 kWh, over the course of the season.
Average Daily Incident Shortwave Solar Energy in the Spring in Portales
For the purposes of this report, the geographical coordinates of Portales are 34.186 deg latitude, -103.334 deg longitude, and 4,006 ft elevation.
The topography within 2 miles of Portales is essentially flat, with a maximum elevation change of 69 feet and an average elevation above sea level of 4,011 feet. Within 10 miles is essentially flat (302 feet). Within 50 miles contains only modest variations in elevation (1,335 feet).
The area within 2 miles of Portales is covered by shrubs (44%), grassland (36%), and cropland (19%), within 10 miles by grassland (63%) and cropland (29%), and within 50 miles by grassland (65%) and cropland (26%).
This report illustrates the typical weather in Portales, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Portales.
For each station, the records are corrected for the elevation difference between that station and Portales 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 Portales is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Portales and a given station.
The stations contributing to this reconstruction are: Cannon Air Force Base (KCVS, 69%, 22 kilometers, north); Melrose Gunnery Range (K4MR, 26%, 45 kilometers, west); and Reese Air Force Base / Lubbock (KREE, 5.0%, 135 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 airports 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.
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.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.