February Weather at Tonopah Test Range Airport Nevada, United States

Daily high temperatures increase by 6°F, from 47°F to 53°F, rarely falling below 35°F or exceeding 64°F.

Daily low temperatures increase by 5°F, from 26°F to 31°F, rarely falling below 16°F or exceeding 39°F.

For reference, on July 15, the hottest day of the year, temperatures at Tonopah Test Range Airport typically range from 63°F to 91°F, while on December 26, the coldest day of the year, they range from 22°F to 43°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on February. 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.

Skopje, Macedonia (6,336 miles away); Kızılırmak, Turkey (6,737 miles); and Alīgūdarz, Iran (7,450 miles) are the far-away foreign places with temperatures most similar to Tonopah Test Range Airport (view comparison).

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The month of February at Tonopah Test Range Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 45% throughout the month. The highest chance of overcast or mostly cloudy conditions is 46% on February 21.

The clearest day of the month is February 1, with clear, mostly clear, or partly cloudy conditions 56% of the time.

For reference, on February 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 46%, while on September 12, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 87%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Tonopah Test Range Airport, the chance of a wet day over the course of February is gradually increasing, starting the month at 7% and ending it at 9%.

For reference, the year's highest daily chance of a wet day is 10% on February 21, and its lowest chance is 3% on June 15.

Over the course of February at Tonopah Test Range Airport, the chance of a day with only rain increases from 5% to 8%, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 1% throughout.

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 February at Tonopah Test Range Airport is essentially constant, remaining about 0.4 inches throughout, and rarely exceeding 1.2 inches.

Over the course of February at Tonopah Test Range Airport, 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, 0 minutes, implying an average daily increase of 2 minutes, 14 seconds, and weekly increase of 15 minutes, 36 seconds.

The shortest day of the month is February 1, with 10 hours, 20 minutes of daylight and the longest day is February 28, with 11 hours, 20 minutes of daylight.

The latest sunrise of the month at Tonopah Test Range Airport is 6:50 AM on February 1 and the earliest sunrise is 31 minutes earlier at 6:19 AM on February 28.

The earliest sunset is 5:10 PM on February 1 and the latest sunset is 29 minutes later at 5:39 PM on February 28.

Daylight saving time is observed at Tonopah Test Range Airport during 2026, but it neither starts nor ends during February, so the entire month is in standard time.

For reference, on June 21, the longest day of the year, the Sun rises at 5:25 AM and sets 14 hours, 47 minutes later, at 8:12 PM, while on December 21, the shortest day of the year, it rises at 6:59 AM and sets 9 hours, 33 minutes later, at 4:31 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 February 2026. 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 at Tonopah Test Range Airport is essentially constant during February, remaining around 0% throughout.

For reference, on August 21, 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 at Tonopah Test Range Airport is gradually increasing during February, increasing from 8.4 miles per hour to 9.2 miles per hour over the course of the month.

For reference, on April 11, the windiest day of the year, the daily average wind speed is 10.0 miles per hour, while on October 21, the calmest day of the year, the daily average wind speed is 7.7 miles per hour.

The wind direction at Tonopah Test Range Airport during February is predominantly out of the north from February 1 to February 18 and the south from February 18 to February 28.

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 at Tonopah Test Range Airport typically lasts for 6.1 months (187 days), from around April 19 to around October 23, rarely starting before March 28 or after May 11, and rarely ending before October 4 or after November 10.

The month of February at Tonopah Test Range Airport is reliably fully outside of 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 at Tonopah Test Range Airport are essentially constant during February, remaining within 10°F of 17°F throughout.

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 at Tonopah Test Range Airport is increasing during February, rising by 1.1 kWh, from 3.5 kWh to 4.6 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Tonopah Test Range Airport are 37.793 deg latitude, -116.779 deg longitude, and 5,535 ft elevation.

The topography within 2 miles of Tonopah Test Range Airport contains only modest variations in elevation, with a maximum elevation change of 364 feet and an average elevation above sea level of 5,555 feet. Within 10 miles contains only modest variations in elevation (2,251 feet). Within 50 miles contains large variations in elevation (5,443 feet).

The area within 2 miles of Tonopah Test Range Airport is covered by shrubs (97%), within 10 miles by shrubs (98%), and within 50 miles by shrubs (94%).