Average Weather in February in Marine Corps Base Hawaii - MCBH Hawaii, United States

Daily high temperatures are around 78°F, rarely falling below 75°F or exceeding 82°F. The lowest daily average high temperature is 78°F on February 2.

Daily low temperatures are around 70°F, rarely falling below 65°F or exceeding 73°F.

For reference, on September 3, the hottest day of the year, temperatures in Marine Corps Base Hawaii - MCBH typically range from 77°F to 84°F, while on January 27, the coldest day of the year, they range from 70°F to 78°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.

Average Hourly Temperature in February

The average hourly temperature, color coded into bands: 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 shaded overlays indicate night and civil twilight.

Belmonte, Brazil (8,449 miles away) and Levuka, Fiji (3,144 miles) are the far-away foreign places with temperatures most similar to Marine Corps Base Hawaii - MCBH (view comparison).

Clouds

The month of February in Marine Corps Base Hawaii - MCBH experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 24% throughout the month.

The clearest day of the month is February 11, with clear, mostly clear, or partly cloudy conditions 78% of the time.

For reference, on October 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 41%, while on January 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 79%.

Cloud Cover Categories in February

The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Marine Corps Base Hawaii - MCBH, the chance of a wet day over the course of February is gradually decreasing, starting the month at 23% and ending it at 21%.

For reference, the year's highest daily chance of a wet day is 25% on January 11, and its lowest chance is 5% on June 20.

Probability of Precipitation in February

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 February in Marine Corps Base Hawaii - MCBH is essentially constant, remaining about 2.0 inches throughout, and rarely exceeding 6.2 inches.

Average Monthly Rainfall in February

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 liquid-equivalent snowfall.

Sun

Over the course of February in Marine Corps Base Hawaii - MCBH, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 30 minutes, implying an average daily increase of 1 minute, 7 seconds, and weekly increase of 7 minutes, 46 seconds.

The shortest day of the month is February 1, with 11 hours, 13 minutes of daylight and the longest day is February 28, with 11 hours, 43 minutes of daylight.

Hours of Daylight and Twilight in February

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 Marine Corps Base Hawaii - MCBH is 7:08 AM on February 1 and the earliest sunrise is 16 minutes earlier at 6:52 AM on February 28.

The earliest sunset is 6:21 PM on February 1 and the latest sunset is 14 minutes later at 6:34 PM on February 28.

Daylight saving time is not observed in Marine Corps Base Hawaii - MCBH during 2018.

For reference, on June 21, the longest day of the year, the Sun rises at 5:49 AM and sets 13 hours, 26 minutes later, at 7:16 PM, while on December 21, the shortest day of the year, it rises at 7:04 AM and sets 10 hours, 50 minutes later, at 5:54 PM.

Sunrise & Sunset with Twilight in February

The solar day over the course of February. 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.

Humidity

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 Marine Corps Base Hawaii - MCBH is gradually decreasing during February, falling from 43% to 40% over the course of the month.

For reference, on August 25, the muggiest day of the year, there are muggy conditions 98% of the time, while on March 6, the least muggy day of the year, there are muggy conditions 39% of the time.

Humidity Comfort Levels in February

The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

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 Marine Corps Base Hawaii - MCBH is gradually increasing during February, increasing from 12.9 miles per hour to 13.8 miles per hour over the course of the month.

For reference, on July 3, the windiest day of the year, the daily average wind speed is 16.9 miles per hour, while on January 10, the calmest day of the year, the daily average wind speed is 12.5 miles per hour.

Average Wind Speed in February

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 Marine Corps Base Hawaii - MCBH throughout February is predominantly from the east, with a peak proportion of 62% on February 28.

Wind Direction in February

The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Marine Corps Base Hawaii - MCBH is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in Marine Corps Base Hawaii - MCBH is essentially constant during February, remaining around 75°F throughout.

Average Water Temperature in February

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Growing Season

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).

Temperatures in Marine Corps Base Hawaii - MCBH are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season in February

The percentage of time spent in various temperature bands: 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 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 Marine Corps Base Hawaii - MCBH are rapidly increasing during February, increasing by 626°F, from 731°F to 1,357°F, over the course of the month.

Growing Degree Days in February

The average growing degree days accumulated over the course of February, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 Marine Corps Base Hawaii - MCBH is gradually increasing during February, rising by 0.8 kWh, from 5.0 kWh to 5.8 kWh, over the course of the month.

Topography

For the purposes of this report, the geographical coordinates of Marine Corps Base Hawaii - MCBH are 21.443 deg latitude, -157.750 deg longitude, and 0 ft elevation.

The topography within 2 miles of Marine Corps Base Hawaii - MCBH contains significant variations in elevation, with a maximum elevation change of 620 feet and an average elevation above sea level of 28 feet. Within 10 miles contains significant variations in elevation (3,117 feet). Within 50 miles contains large variations in elevation (4,117 feet).

The area within 2 miles of Marine Corps Base Hawaii - MCBH is covered by water (48%) and artificial surfaces (42%), within 10 miles by water (62%) and trees (22%), and within 50 miles by water (91%).

Data Sources

This report illustrates the typical weather in Marine Corps Base Hawaii - MCBH 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Marine Corps Base Hawaii - MCBH.

For each station, the records are corrected for the elevation difference between that station and Marine Corps Base Hawaii - MCBH 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 Marine Corps Base Hawaii - MCBH is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Marine Corps Base Hawaii - MCBH and a given station.

The stations contributing to this reconstruction are: Marine Corps Air Station Kaneohe Bay (100%, 2.0 kilometers, west) and Molokai Airport (0.5%, 75 kilometers, southeast).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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.

Disclaimer

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.