Climate and Average Weather Year Round in Inverell Australia

In Inverell, the summers are hot and partly cloudy and the winters are cold and mostly clear. Over the course of the year, the temperature typically varies from 39°F to 89°F and is rarely below 32°F or above 97°F.

Based on the tourism score, the best time of year to visit Inverell for warm-weather activities is from early December to late March.

The hot season lasts for 3.9 months, from November 21 to March 19, with an average daily high temperature above 83°F. The hottest month of the year in Inverell is January, with an average high of 88°F and low of 62°F.

The cool season lasts for 3.0 months, from May 26 to August 26, with an average daily high temperature below 65°F. The coldest month of the year in Inverell is July, with an average low of 39°F and high of 59°F.

In Inverell, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.

The clearer part of the year in Inverell begins around July 14 and lasts for 3.0 months, ending around October 16.

The clearest month of the year in Inverell is August, during which on average the sky is clear, mostly clear, or partly cloudy 83% of the time.

The cloudier part of the year begins around October 16 and lasts for 9.0 months, ending around July 14.

The cloudiest month of the year in Inverell is November, during which on average the sky is overcast or mostly cloudy 34% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Inverell varies throughout the year.

The wetter season lasts 4.4 months, from October 18 to February 28, with a greater than 23% chance of a given day being a wet day. The month with the most wet days in Inverell is December, with an average of 9.7 days with at least 0.04 inches of precipitation.

The drier season lasts 7.7 months, from February 28 to October 18. The month with the fewest wet days in Inverell is April, with an average of 4.0 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Inverell is December, with an average of 9.7 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 33% on December 13.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Inverell experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Inverell. The month with the most rain in Inverell is January, with an average rainfall of 3.3 inches.

The month with the least rain in Inverell is April, with an average rainfall of 1.4 inches.

The length of the day in Inverell varies significantly over the course of the year. In 2024, the shortest day is June 21, with 10 hours, 14 minutes of daylight; the longest day is December 21, with 14 hours, 4 minutes of daylight.

The earliest sunrise is at 5:29 AM on October 5, and the latest sunrise is 1 hour, 40 minutes later at 7:09 AM on April 6. The earliest sunset is at 5:03 PM on June 9, and the latest sunset is 2 hours, 58 minutes later at 8:00 PM on January 10.

Daylight saving time (DST) is observed in Inverell during 2024, starting in the spring on October 6 and ending in the fall on April 7.

The figure below presents a compact representation of key lunar data for 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.

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.

Inverell experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.5 months, from November 26 to March 11, during which time the comfort level is muggy, oppressive, or miserable at least 3% of the time. The month with the most muggy days in Inverell is January, with 2.4 days that are muggy or worse.

The least muggy day of the year is July 16, when muggy conditions are essentially unheard of.

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 Inverell experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 7.8 months, from July 22 to March 17, with average wind speeds of more than 7.9 miles per hour. The windiest month of the year in Inverell is November, with an average hourly wind speed of 8.4 miles per hour.

The calmer time of year lasts for 4.2 months, from March 17 to July 22. The calmest month of the year in Inverell is April, with an average hourly wind speed of 7.4 miles per hour.

The predominant average hourly wind direction in Inverell varies throughout the year.

The wind is most often from the south for 1.9 weeks, from June 17 to June 30 and for 1.9 weeks, from July 17 to July 30, with a peak percentage of 30% on June 17. The wind is most often from the west for 2.4 weeks, from June 30 to July 17 and for 2.6 months, from July 30 to October 19, with a peak percentage of 32% on September 22. The wind is most often from the east for 7.9 months, from October 19 to June 17, with a peak percentage of 41% on January 1.

To characterize how pleasant the weather is in Inverell throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Inverell for general outdoor tourist activities is from early December to late March, with a peak score in the first week of March.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Inverell for hot-weather activities is from early January to mid February, with a peak score in the last week of January.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

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 Inverell typically lasts for 10 months (306 days), from around August 16 to around June 18, rarely starting after September 18, or ending before May 27.

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.

Based on growing degree days alone, the first spring blooms in Inverell should appear around August 4, only rarely appearing before July 28 or after August 17.

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 experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 3.9 months, from October 22 to February 19, with an average daily incident shortwave energy per square meter above 6.9 kWh. The brightest month of the year in Inverell is December, with an average of 7.8 kWh.

The darker period of the year lasts for 2.9 months, from May 5 to August 3, with an average daily incident shortwave energy per square meter below 4.2 kWh. The darkest month of the year in Inverell is June, with an average of 3.3 kWh.

For the purposes of this report, the geographical coordinates of Inverell are -29.774 deg latitude, 151.112 deg longitude, and 1,929 ft elevation.

The topography within 2 miles of Inverell contains only modest variations in elevation, with a maximum elevation change of 367 feet and an average elevation above sea level of 1,995 feet. Within 10 miles contains only modest variations in elevation (1,060 feet). Within 50 miles contains very significant variations in elevation (4,163 feet).

The area within 2 miles of Inverell is covered by sparse vegetation (76%) and trees (18%), within 10 miles by sparse vegetation (63%) and trees (23%), and within 50 miles by trees (47%) and sparse vegetation (43%).