Summer Weather in Waiouru New Zealand

Daily high temperatures increase by 6°F, from 60°F to 66°F, rarely falling below 53°F or exceeding 75°F. The highest daily average high temperature is 67°F on February 12.

Daily low temperatures are around 47°F, rarely falling below 38°F or exceeding 56°F. The highest daily average low temperature is 49°F on February 5.

For reference, on February 12, the hottest day of the year, temperatures in Waiouru typically range from 49°F to 67°F, while on July 14, the coldest day of the year, they range from 34°F to 45°F.

The figure below shows you a compact characterization of the hourly average summer 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.

Glasgow, United Kingdom (11,317 miles away) is the far-away foreign place with temperatures most similar to Waiouru (view comparison).

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The summer in Waiouru experiences rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 58% to 43%. The lowest chance of overcast or mostly cloudy conditions is 42% on February 21.

The clearest day of the summer is February 21, with clear, mostly clear, or partly cloudy conditions 58% of the time.

For reference, on July 7, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 74%, while on February 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 58%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Waiouru, the chance of a wet day over the course of the summer is rapidly decreasing, starting the season at 32% and ending it at 24%.

For reference, the year's highest daily chance of a wet day is 40% on June 20, and its lowest chance is 21% on February 11.

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 summer in Waiouru is gradually decreasing, starting the season at 2.6 inches, when it rarely exceeds 4.1 inches or falls below 1.2 inches, and ending the season at 2.2 inches, when it rarely exceeds 4.2 inches or falls below 0.5 inches.

The highest average 31-day accumulation is 2.6 inches on December 17.

Over the course of the summer in Waiouru, the length of the day is rapidly decreasing. From the start to the end of the season, the length of the day decreases by 1 hour, 43 minutes, implying an average daily decrease of 1 minute, 9 seconds, and weekly decrease of 8 minutes, 5 seconds.

The shortest day of the summer is February 28, with 13 hours, 1 minute of daylight and the longest day is December 21, with 14 hours, 58 minutes of daylight.

The earliest sunrise of the summer in Waiouru is 5:43 AM on December 7 and the latest sunrise is 1 hour, 15 minutes later at 6:58 AM on February 28.

The latest sunset is 8:47 PM on January 4 and the earliest sunset is 48 minutes earlier at 8:00 PM on February 28.

Daylight saving time is observed in Waiouru during 2024, but it neither starts nor ends during the summer, so the entire season is in standard time.

For reference, on December 21, the longest day of the year, the Sun rises at 5:46 AM and sets 14 hours, 58 minutes later, at 8:44 PM, while on June 20, the shortest day of the year, it rises at 7:37 AM and sets 9 hours, 23 minutes later, at 5:00 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 the summer 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.

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 Waiouru is essentially constant during the summer, remaining around 0% throughout.

The highest chance of a muggy day during the summer is 0% on January 31.

For reference, on January 31, the muggiest day of the year, there are muggy conditions 0% of the time, while on March 28, 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 in Waiouru is decreasing during the summer, decreasing from 11.7 miles per hour to 10.0 miles per hour over the course of the season.

For reference, on October 6, the windiest day of the year, the daily average wind speed is 12.6 miles per hour, while on February 21, the calmest day of the year, the daily average wind speed is 9.7 miles per hour.

The lowest daily average wind speed during the summer is 9.7 miles per hour on February 21.

The hourly average wind direction in Waiouru throughout the summer is predominantly from the west, with a peak proportion of 47% on December 1.

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 Waiouru typically lasts for 5.1 months (154 days), from around November 11 to around April 13, rarely starting before October 14 or after December 10, and rarely ending before March 6 or after May 18.

The summer in Waiouru is very likely fully outside of the growing season, with the chance that a given day is in the growing season reaching a high of 100% on January 14.

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 Waiouru are rapidly increasing during the summer, increasing by 580°F, from 129°F to 709°F, over the course of the season.

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 Waiouru is gradually decreasing during the summer, falling by 1.0 kWh, from 6.7 kWh to 5.8 kWh, over the course of the season.

The highest average daily incident shortwave solar energy during the summer is 7.4 kWh on January 4.

For the purposes of this report, the geographical coordinates of Waiouru are -39.478 deg latitude, 175.668 deg longitude, and 2,687 ft elevation.

The topography within 2 miles of Waiouru contains very significant variations in elevation, with a maximum elevation change of 833 feet and an average elevation above sea level of 2,690 feet. Within 10 miles contains very significant variations in elevation (2,812 feet). Within 50 miles contains large variations in elevation (9,055 feet).

The area within 2 miles of Waiouru is covered by grassland (45%), cropland (36%), and trees (18%), within 10 miles by trees (48%) and grassland (38%), and within 50 miles by trees (59%) and grassland (21%).