Climate and Average Weather Year Round in Rosebery Australia

In Rosebery, the summers are cool and partly cloudy and the winters are very cold, wet, and mostly cloudy. Over the course of the year, the temperature typically varies from 37°F to 66°F and is rarely below 31°F or above 75°F.

Based on the tourism score, the best time of year to visit Rosebery for warm-weather activities is from mid January to late February.

The warm season lasts for 3.2 months, from December 10 to March 17, with an average daily high temperature above 62°F. The hottest month of the year in Rosebery is February, with an average high of 65°F and low of 50°F.

The cool season lasts for 3.3 months, from May 25 to September 3, with an average daily high temperature below 52°F. The coldest month of the year in Rosebery is July, with an average low of 38°F and high of 49°F.

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

The clearer part of the year in Rosebery begins around November 9 and lasts for 4.9 months, ending around April 6.

The clearest month of the year in Rosebery is February, during which on average the sky is clear, mostly clear, or partly cloudy 55% of the time.

The cloudier part of the year begins around April 6 and lasts for 7.1 months, ending around November 9.

The cloudiest month of the year in Rosebery is June, during which on average the sky is overcast or mostly cloudy 70% 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 Rosebery varies significantly throughout the year.

The wetter season lasts 6.1 months, from April 25 to October 30, with a greater than 43% chance of a given day being a wet day. The month with the most wet days in Rosebery is August, with an average of 17.8 days with at least 0.04 inches of precipitation.

The drier season lasts 5.9 months, from October 30 to April 25. The month with the fewest wet days in Rosebery is February, with an average of 7.9 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 Rosebery is August, with an average of 17.8 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 60% on August 7.

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. Rosebery experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Rosebery. The month with the most rain in Rosebery is August, with an average rainfall of 6.6 inches.

The month with the least rain in Rosebery is February, with an average rainfall of 2.5 inches.

The length of the day in Rosebery varies significantly over the course of the year. In 2024, the shortest day is June 21, with 9 hours, 8 minutes of daylight; the longest day is December 21, with 15 hours, 13 minutes of daylight.

The earliest sunrise is at 5:36 AM on December 9, and the latest sunrise is 2 hours, 10 minutes later at 7:46 AM on June 28. The earliest sunset is at 4:52 PM on June 14, and the latest sunset is 4 hours, 3 minutes later at 8:55 PM on January 3.

Daylight saving time (DST) is observed in Rosebery 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.

The perceived humidity level in Rosebery, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.

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

The windier part of the year lasts for 3.5 months, from July 29 to November 13, with average wind speeds of more than 8.2 miles per hour. The windiest month of the year in Rosebery is September, with an average hourly wind speed of 8.9 miles per hour.

The calmer time of year lasts for 8.5 months, from November 13 to July 29. The calmest month of the year in Rosebery is February, with an average hourly wind speed of 7.4 miles per hour.

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

The wind is most often from the north for 1.0 weeks, from June 11 to June 18 and for 3.9 weeks, from June 26 to July 23, with a peak percentage of 38% on July 11. The wind is most often from the west for 1.1 weeks, from June 18 to June 26 and for 11 months, from July 23 to June 11, with a peak percentage of 37% on June 21.

Rosebery 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 water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 2.6 months, from January 10 to March 30, with an average temperature above 60°F. The month of the year in Rosebery with the warmest water is February, with an average temperature of 62°F.

The time of year with cooler water lasts for 3.6 months, from July 13 to November 2, with an average temperature below 56°F. The month of the year in Rosebery with the coolest water is September, with an average temperature of 54°F.

To characterize how pleasant the weather is in Rosebery 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 Rosebery for general outdoor tourist activities is from mid January to late February, with a peak score in the second week of February.

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 Rosebery for hot-weather activities is for the entire month of February, with a peak score in the second week of February.

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 Rosebery typically lasts for 7.5 months (227 days), from around September 24 to around May 9, rarely starting before July 31 or after November 8, and rarely ending before March 27 or after June 22.

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 Rosebery should appear around October 24, only rarely appearing before October 9 or after November 8.

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 extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.5 months, from November 7 to February 21, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest month of the year in Rosebery is January, with an average of 6.9 kWh.

The darker period of the year lasts for 3.9 months, from April 26 to August 23, with an average daily incident shortwave energy per square meter below 2.4 kWh. The darkest month of the year in Rosebery is June, with an average of 1.3 kWh.

For the purposes of this report, the geographical coordinates of Rosebery are -41.779 deg latitude, 145.538 deg longitude, and 499 ft elevation.

The topography within 2 miles of Rosebery contains large variations in elevation, with a maximum elevation change of 2,641 feet and an average elevation above sea level of 1,022 feet. Within 10 miles contains large variations in elevation (3,776 feet). Within 50 miles also contains extreme variations in elevation (5,318 feet).

The area within 2 miles of Rosebery is covered by trees (77%) and sparse vegetation (11%), within 10 miles by trees (84%), and within 50 miles by trees (68%) and water (22%).