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Winter Weather in Kula Hawaii, United States

Daily high temperatures are around 73°F, rarely falling below 68°F or exceeding 76°F. The lowest daily average high temperature is 72°F on January 31.

Daily low temperatures are around 59°F, rarely falling below 53°F or exceeding 64°F. The lowest daily average low temperature is 58°F on January 28.

For reference, on August 26, the hottest day of the year, temperatures in Kula typically range from 65°F to 79°F, while on January 27, the coldest day of the year, they range from 58°F to 72°F.

Average High and Low Temperature in the Winter in Kula

Average High and Low Temperature in the Winter in KulaDecJanFeb55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°FFallSpringJan 2772°FJan 2772°F58°F58°FDec 174°FDec 174°F61°F61°FFeb 2872°FFeb 2872°F58°F58°FJan 172°FJan 172°F58°F58°F
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 winter 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 Winter in Kula

Average Hourly Temperature in the Winter in KulaDecJanFeb12 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 AMFallSpringcoolcoolcomfortablecomfortablewarm
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.

Piñas, Ecuador (5,457 miles away) is the far-away foreign place with temperatures most similar to Kula (view comparison).

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The winter in Kula experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 35% to 27%. The lowest chance of overcast or mostly cloudy conditions is 23% on January 18.

The clearest day of the winter is January 18, with clear, mostly clear, or partly cloudy conditions 77% of the time.

For reference, on October 30, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 43%, while on January 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.

Cloud Cover Categories in the Winter in Kula

Cloud Cover Categories in the Winter in KulaDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FallSpringOct 3057%Oct 3057%Dec 165%Dec 165%Feb 2873%Feb 2873%Jan 175%Jan 175%Feb 175%Feb 175%clearmostly clearpartly cloudyovercastmostly cloudy
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 Kula, the chance of a wet day over the course of the winter is gradually increasing, starting the season at 18% and ending it at 21%.

For reference, the year's highest daily chance of a wet day is 23% on January 14, and its lowest chance is 6% on June 17.

Probability of Precipitation in the Winter in Kula

Probability of Precipitation in the Winter in KulaDecJanFeb0%0%2%2%4%4%6%6%8%8%10%10%12%12%14%14%16%16%18%18%20%20%22%22%24%24%FallSpringJan 1423%Jan 1423%Dec 118%Dec 118%Feb 2821%Feb 2821%Jan 121%Jan 121%Feb 120%Feb 120%rain
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 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 winter in Kula is gradually increasing, starting the season at 1.4 inches, when it rarely exceeds 3.6 inches, and ending the season at 1.7 inches, when it rarely exceeds 4.2 inches.

The highest average 31-day accumulation is 1.9 inches on January 1.

Average Monthly Rainfall in the Winter in Kula

Average Monthly Rainfall in the Winter in KulaDecJanFeb0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 inFallSpringJan 11.9 inJan 11.9 inDec 11.4 inDec 11.4 inFeb 281.7 inFeb 281.7 inFeb 11.5 inFeb 11.5 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 the winter in Kula, the length of the day is increasing. From the start to the end of the season, the length of the day increases by 46 minutes, implying an average daily increase of 31 seconds, and weekly increase of 3 minutes, 39 seconds.

The shortest day of the winter is December 20, with 10 hours, 52 minutes of daylight and the longest day is February 28, with 11 hours, 44 minutes of daylight.

Hours of Daylight and Twilight in the Winter in Kula

Hours of Daylight and Twilight in the Winter in KulaDecJanFeb0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrFallSpringDec 2010 hr, 52 minDec 2010 hr, 52 minnightnightdaydayFeb 2811 hr, 44 minFeb 2811 hr, 44 minFeb 111 hr, 15 minFeb 111 hr, 15 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 winter in Kula is 7:04 AM on January 16 and the earliest sunrise is 19 minutes earlier at 6:45 AM on February 28.

The earliest sunset is 5:43 PM on December 1 and the latest sunset is 46 minutes later at 6:29 PM on February 28.

Daylight saving time is not observed in Kula during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:45 AM and sets 13 hours, 24 minutes later, at 7:09 PM, while on December 21, the shortest day of the year, it rises at 6:57 AM and sets 10 hours, 52 minutes later, at 5:49 PM.

Sunrise & Sunset with Twilight in the Winter in Kula

Sunrise & Sunset with Twilight in the Winter in KulaDecJanFeb2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMFallSpring6:45 AM6:45 AMFeb 286:29 PMFeb 286:29 PM6:45 AM6:45 AMDec 15:43 PMDec 15:43 PM7:04 AM7:04 AMJan 166:06 PMJan 166:06 PM7:01 AM7:01 AMFeb 16:16 PMFeb 16:16 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the winter. 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 the Winter in Kula

Solar Elevation and Azimuth in the Winter in KulaDecJanFeb12 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 AMFallSpring0010202030304050001010203030404060
northeastsouthwest
Solar elevation and azimuth in the the winter of 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 the winter of 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 the Winter in Kula

Moon Rise, Set & Phases in the Winter in KulaDecJanFeb12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMFallSpringNov 12:48 AMNov 12:48 AMNov 1511:29 AMNov 1511:29 AMNov 308:22 PMNov 308:22 PMDec 1411:02 PMDec 1411:02 PMDec 3012:28 PMDec 3012:28 PMJan 1312:28 PMJan 1312:28 PMJan 292:37 AMJan 292:37 AMFeb 123:54 AMFeb 123:54 AMFeb 272:45 PMFeb 272:45 PMMar 138:55 PMMar 138:55 PMMar 2912:58 AMMar 2912:58 AM6:40 AM6:40 AM4:53 PM4:53 PM5:22 PM5:22 PM5:18 PM5:18 PM7:28 AM7:28 AM5:56 PM5:56 PM5:06 PM5:06 PM7:09 AM7:09 AM6:49 PM6:49 PM5:55 PM5:55 PM7:13 AM7:13 AM6:41 AM6:41 AM6:35 PM6:35 PM6:25 PM6:25 PM6:51 AM6:51 AM7:22 PM7:22 PM
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.

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 Kula is rapidly decreasing during the winter, falling from 25% to 11% over the course of the season.

For reference, on August 11, the muggiest day of the year, there are muggy conditions 62% of the time, while on March 5, the least muggy day of the year, there are muggy conditions 10% of the time.

Humidity Comfort Levels in the Winter in Kula

Humidity Comfort Levels in the Winter in KulaDecJanFeb0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%FallSpringDec 125%Dec 125%Feb 2811%Feb 2811%Jan 114%Jan 114%Feb 114%Feb 114%muggymuggyhumidhumidcomfortablecomfortabledrydryoppressiveoppressive
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 Kula is decreasing during the winter, decreasing from 14.3 miles per hour to 13.1 miles per hour over the course of the season.

For reference, on June 25, the windiest day of the year, the daily average wind speed is 16.3 miles per hour, while on January 12, the calmest day of the year, the daily average wind speed is 11.6 miles per hour.

The lowest daily average wind speed during the winter is 11.6 miles per hour on January 23.

Average Wind Speed in the Winter in Kula

Average Wind Speed in the Winter in KulaDecJanFeb0 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mph20 mph20 mphFallSpringJan 2311.6 mphJan 2311.6 mphDec 114.3 mphDec 114.3 mphFeb 2813.1 mphFeb 2813.1 mphJan 111.8 mphJan 111.8 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 Kula throughout the winter is predominantly from the east, with a peak proportion of 81% on December 1.

Wind Direction in the Winter in Kula

Wind Direction in the Winter in KulaDecJanFeb0%100%20%80%40%60%60%40%80%20%100%0%FallSpringeastnorthwestsouth
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).

Kula 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 Kula is gradually decreasing during the winter, falling by 2°F, from 78°F to 75°F, over the course of the season.

Average Water Temperature in the Winter in Kula

Average Water Temperature in the Winter in KulaDecJanFeb73°F73°F74°F74°F75°F75°F76°F76°F77°F77°F78°F78°F79°F79°F80°F80°F81°F81°FFallSpringDec 178°FDec 178°FFeb 2875°FFeb 2875°FJan 176°FJan 176°FFeb 176°FFeb 176°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 Kula 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 the Winter in Kula

Time Spent in Various Temperature Bands and the Growing Season in the Winter in KulaDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FallSpring100%Jan 15100%Jan 15coolcomfortablewarmcold
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 Kula are very rapidly decreasing during the winter, decreasing by 5,215°F, from 6,037°F to 823°F, over the course of the season.

Growing Degree Days in the Winter in Kula

Growing Degree Days in the Winter in KulaDecJanFeb1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°FFallSpringDec 16,037°FDec 16,037°FFeb 28823°FFeb 28823°F
The average growing degree days accumulated over the course of the winter, 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 Kula is increasing during the winter, rising by 1.3 kWh, from 4.4 kWh to 5.7 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the winter is 4.3 kWh on December 20.

Average Daily Incident Shortwave Solar Energy in the Winter in Kula

Average Daily Incident Shortwave Solar Energy in the Winter in KulaDecJanFeb0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhFallSpringDec 204.3 kWhDec 204.3 kWhDec 14.4 kWhDec 14.4 kWhFeb 285.7 kWhFeb 285.7 kWhFeb 15.0 kWhFeb 15.0 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 Kula are 20.791 deg latitude, -156.327 deg longitude, and 2,310 ft elevation.

The topography within 2 miles of Kula contains large variations in elevation, with a maximum elevation change of 2,113 feet and an average elevation above sea level of 2,339 feet. Within 10 miles contains large variations in elevation (10,026 feet). Within 50 miles also contains extreme variations in elevation (10,069 feet).

The area within 2 miles of Kula is covered by artificial surfaces (46%) and grassland (36%), within 10 miles by trees (25%) and cropland (20%), and within 50 miles by water (87%).

This report illustrates the typical weather in Kula, 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 Kula.

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

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Kula and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

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 © OpenStreetMap contributors.

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.

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