Average Weather in Smithton Australia

In Smithton, the summers are short and comfortable; the winters are long, cold, and wet; and it is windy and partly cloudy year round. Over the course of the year, the temperature typically varies from 48°F to 68°F and is rarely below 43°F or above 74°F.

The warm season lasts for 2.7 months, from January 1 to March 22, with an average daily high temperature above 65°F. The hottest day of the year is February 11, with an average high of 68°F and low of 58°F.

The cool season lasts for 4.0 months, from May 31 to September 30, with an average daily high temperature below 56°F. The coldest day of the year is August 4, with an average low of 48°F and high of 53°F.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 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.

Clouds

In Smithton, 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 Smithton begins around December 4 and lasts for 4.1 months, ending around April 8. On February 15, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 66% of the time, and overcast or mostly cloudy 34% of the time.

The cloudier part of the year begins around April 8 and lasts for 7.9 months, ending around December 4. On June 6, the cloudiest day of the year, the sky is overcast or mostly cloudy 54% of the time, and clear, mostly clear, or partly cloudy 46% of the time.

Cloud Cover

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. The chance of wet days in Smithton varies significantly throughout the year.

The wetter season lasts 5.7 months, from May 4 to October 25, with a greater than 36% chance of a given day being a wet day. The chance of a wet day peaks at 54% on August 8.

The drier season lasts 6.3 months, from October 25 to May 4. The smallest chance of a wet day is 18% on February 15.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 54% on August 8.

Daily Chance of Precipitation

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 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. Smithton experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Smithton. The most rain falls during the 31 days centered around July 30, with an average total accumulation of 4.8 inches.

The least rain falls around February 17, with an average total accumulation of 1.5 inches.

Average Monthly Rainfall

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

The length of the day in Smithton varies significantly over the course of the year. In 2017, the shortest day is June 21, with 9 hours, 14 minutes of daylight; the longest day is December 21, with 15 hours, 7 minutes of daylight.

Hours of Daylight and Twilight

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 earliest sunrise is at 5:41 AM on December 8, and the latest sunrise is 2 hours, 4 minutes later at 7:44 AM on June 28. The earliest sunset is at 4:57 PM on June 14, and the latest sunset is 3 hours, 57 minutes later at 8:54 PM on January 3.

Daylight saving time (DST) is observed in Smithton during 2017, starting in the spring on October 1 and ending in the fall on April 2.

Sunrise & Sunset with Twilight and Daylight Saving Time

The solar day over the course of the year 2017. 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 transitions to and from daylight saving time are indicated by the 'DST' labels.

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 perceived humidity level in Smithton, 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.

Humidity Comfort Levels

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 Smithton does not vary significantly over the course of the year, remaining within 0.5 miles per hour of 6.2 miles per hour throughout.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

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

The wind is most often from the east for 3.0 weeks, from February 6 to February 27, with a peak percentage of 33% on February 25. The wind is most often from the west for 11 months, from February 27 to February 6, with a peak percentage of 43% on January 1.

Wind Direction

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

Smithton 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 2.9 months, from January 14 to April 10, with an average temperature above 62°F. The day of the year with the warmest water is February 25, with an average temperature of 64°F.

The time of year with cooler water lasts for 4.0 months, from June 29 to October 30, with an average temperature below 56°F. The day of the year with the coolest water is August 28, with an average temperature of 54°F.

Average Water Temperature

The daily average water temperature (purple line), 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 experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.5 months, from November 6 to February 20, with an average daily incident shortwave energy per square meter above 6.3 kWh. The brightest day of the year is January 3, with an average of 7.5 kWh.

The darker period of the year lasts for 3.9 months, from April 27 to August 24, with an average daily incident shortwave energy per square meter below 2.7 kWh. The darkest day of the year is June 21, with an average of 1.5 kWh.

Average Daily Incident Shortwave Solar Energy

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Smithton are -40.846 deg latitude, 145.125 deg longitude, and 49 ft elevation.

The topography within 2 miles of Smithton contains only modest variations in elevation, with a maximum elevation change of 292 feet and an average elevation above sea level of 78 feet. Within 10 miles contains only modest variations in elevation (909 feet). Within 50 miles contains very significant variations in elevation (3,547 feet).

The area within 2 miles of Smithton is covered by trees (41%), cropland (34%), and artificial surfaces (14%), within 10 miles by cropland (37%) and trees (32%), and within 50 miles by water (62%) and trees (30%).

Data Sources

This report illustrates the typical weather in Smithton, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Smithton is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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.

The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Smithton, according to the International Standard Atmosphere .

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.

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.