Climate and Average Weather Year Round in Starše Slovenia

In Starše, the summers are warm, the winters are very cold and snowy, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 24°F to 80°F and is rarely below 12°F or above 89°F.

Based on the tourism score, the best time of year to visit Starše for warm-weather activities is from mid June to early September.

The warm season lasts for 3.4 months, from May 26 to September 8, with an average daily high temperature above 71°F. The hottest month of the year in Starše is July, with an average high of 79°F and low of 58°F.

The cold season lasts for 3.5 months, from November 19 to March 1, with an average daily high temperature below 46°F. The coldest month of the year in Starše is January, with an average low of 25°F and high of 38°F.

In Starše, 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 Starše begins around May 31 and lasts for 4.1 months, ending around October 3.

The clearest month of the year in Starše is July, during which on average the sky is clear, mostly clear, or partly cloudy 67% of the time.

The cloudier part of the year begins around October 3 and lasts for 7.9 months, ending around May 31.

The cloudiest month of the year in Starše is December, during which on average the sky is overcast or mostly cloudy 60% 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 Starše varies throughout the year.

The wetter season lasts 6.5 months, from April 1 to October 18, with a greater than 24% chance of a given day being a wet day. The month with the most wet days in Starše is June, with an average of 10.4 days with at least 0.04 inches of precipitation.

The drier season lasts 5.5 months, from October 18 to April 1. The month with the fewest wet days in Starše is January, with an average of 4.5 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 Starše is June, with an average of 10.4 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 36% on June 15.

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. Starše experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Starše. The month with the most rain in Starše is September, with an average rainfall of 3.4 inches.

The month with the least rain in Starše is January, with an average rainfall of 0.8 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Starše experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 4.6 months, from November 1 to March 21, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Starše is January, with an average snowfall of 3.6 inches.

The snowless period of the year lasts for 7.4 months, from March 21 to November 1. The least snow falls around July 31, with an average total accumulation of 0.0 inches.

The length of the day in Starše varies significantly over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 35 minutes of daylight; the longest day is June 20, with 15 hours, 49 minutes of daylight.

The earliest sunrise is at 5:03 AM on June 16, and the latest sunrise is 2 hours, 37 minutes later at 7:40 AM on January 2. The earliest sunset is at 4:09 PM on December 10, and the latest sunset is 4 hours, 44 minutes later at 8:53 PM on June 26.

Daylight saving time (DST) is observed in Starše during 2024, starting in the spring on March 31, lasting 6.9 months, and ending in the fall on October 27.

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 Starše, 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, staying within 3% of 3% 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 Starše experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.5 months, from January 15 to May 29, with average wind speeds of more than 6.4 miles per hour. The windiest month of the year in Starše is March, with an average hourly wind speed of 7.2 miles per hour.

The calmer time of year lasts for 7.5 months, from May 29 to January 15. The calmest month of the year in Starše is August, with an average hourly wind speed of 5.5 miles per hour.

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

The wind is most often from the north for 3.7 months, from January 29 to May 19; for 3.7 months, from May 27 to September 18; and for 6.0 days, from November 25 to December 1, with a peak percentage of 38% on July 20. The wind is most often from the south for 1.1 weeks, from May 19 to May 27 and for 2.2 months, from September 18 to November 25, with a peak percentage of 33% on October 29. The wind is most often from the west for 1.9 months, from December 1 to January 29, with a peak percentage of 36% on January 1.

To characterize how pleasant the weather is in Starše 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 Starše for general outdoor tourist activities is from mid June to early September, with a peak score in the second week of August.

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 Starše for hot-weather activities is from early July to mid August, with a peak score in the first week of August.

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 Starše typically lasts for 6.5 months (197 days), from around April 9 to around October 23, rarely starting before March 18 or after April 30, and rarely ending before October 5 or after November 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.

Based on growing degree days alone, the first spring blooms in Starše should appear around April 11, only rarely appearing before March 26 or after April 25.

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 May 2 to August 18, with an average daily incident shortwave energy per square meter above 5.6 kWh. The brightest month of the year in Starše is July, with an average of 6.6 kWh.

The darker period of the year lasts for 3.5 months, from October 28 to February 13, with an average daily incident shortwave energy per square meter below 2.3 kWh. The darkest month of the year in Starše is December, with an average of 1.2 kWh.

For the purposes of this report, the geographical coordinates of Starše are 46.466 deg latitude, 15.767 deg longitude, and 787 ft elevation.

The topography within 2 miles of Starše contains only modest variations in elevation, with a maximum elevation change of 479 feet and an average elevation above sea level of 792 feet. Within 10 miles contains only modest variations in elevation (2,927 feet). Within 50 miles contains large variations in elevation (6,703 feet).

The area within 2 miles of Starše is covered by cropland (70%) and trees (22%), within 10 miles by cropland (61%) and trees (27%), and within 50 miles by trees (47%) and cropland (40%).