Climate and Average Weather Year Round in Chile Chico Chile

In Chile Chico, the summers are comfortable and dry, the winters are very cold, and it is windy and partly cloudy year round. Over the course of the year, the temperature typically varies from 31°F to 67°F and is rarely below 18°F or above 79°F.

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

The warm season lasts for 3.6 months, from November 28 to March 17, with an average daily high temperature above 62°F. The hottest month of the year in Chile Chico is January, with an average high of 67°F and low of 51°F.

The cold season lasts for 3.1 months, from May 22 to August 24, with an average daily high temperature below 48°F. The coldest month of the year in Chile Chico is July, with an average low of 31°F and high of 43°F.

In Chile Chico, 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 Chile Chico begins around September 8 and lasts for 7.0 months, ending around April 8.

The clearest month of the year in Chile Chico is January, during which on average the sky is clear, mostly clear, or partly cloudy 62% of the time.

The cloudier part of the year begins around April 8 and lasts for 5.0 months, ending around September 8.

The cloudiest month of the year in Chile Chico is May, during which on average the sky is overcast or mostly cloudy 55% 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 Chile Chico varies throughout the year.

The wetter season lasts 4.4 months, from April 19 to September 2, with a greater than 15% chance of a given day being a wet day. The month with the most wet days in Chile Chico is May, with an average of 6.5 days with at least 0.04 inches of precipitation.

The drier season lasts 7.6 months, from September 2 to April 19. The month with the fewest wet days in Chile Chico is January, with an average of 2.5 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 Chile Chico is May, with an average of 6.3 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 21% on May 28.

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. Chile Chico experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.4 months, from February 5 to November 18, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Chile Chico is May, with an average rainfall of 1.3 inches.

The rainless period of the year lasts for 2.6 months, from November 18 to February 5. The month with the least rain in Chile Chico is December, with an average rainfall of 0.4 inches.

The length of the day in Chile Chico varies significantly over the course of the year. In 2024, the shortest day is June 20, with 8 hours, 34 minutes of daylight; the longest day is December 21, with 15 hours, 50 minutes of daylight.

The earliest sunrise is at 5:47 AM on December 11, and the latest sunrise is 2 hours, 45 minutes later at 8:32 AM on June 27. The earliest sunset is at 5:05 PM on June 14, and the latest sunset is 4 hours, 38 minutes later at 9:42 PM on December 31.

Daylight saving time (DST) is observed in Chile Chico during 2024, starting in the spring on September 8 and ending in the fall on April 6.

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 Chile Chico, 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 Chile Chico experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.1 months, from October 10 to March 12, with average wind speeds of more than 13.5 miles per hour. The windiest month of the year in Chile Chico is December, with an average hourly wind speed of 16.7 miles per hour.

The calmer time of year lasts for 6.9 months, from March 12 to October 10. The calmest month of the year in Chile Chico is June, with an average hourly wind speed of 10.2 miles per hour.

The predominant average hourly wind direction in Chile Chico is from the west throughout the year.

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

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 Chile Chico for hot-weather activities is from mid January to late 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 Chile Chico typically lasts for 6.6 months (200 days), from around September 24 to around April 12, rarely starting before August 25 or after October 25, and rarely ending before March 14 or after May 9.

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 Chile Chico should appear around October 30, only rarely appearing before October 19 or after November 11.

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 3.3 months, from November 4 to February 13, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest month of the year in Chile Chico is December, with an average of 7.8 kWh.

The darker period of the year lasts for 4.1 months, from April 20 to August 23, with an average daily incident shortwave energy per square meter below 2.5 kWh. The darkest month of the year in Chile Chico is June, with an average of 1.2 kWh.

For the purposes of this report, the geographical coordinates of Chile Chico are -46.541 deg latitude, -71.724 deg longitude, and 705 ft elevation.

The topography within 2 miles of Chile Chico contains very significant variations in elevation, with a maximum elevation change of 1,119 feet and an average elevation above sea level of 891 feet. Within 10 miles contains very significant variations in elevation (5,955 feet). Within 50 miles also contains extreme variations in elevation (8,327 feet).

The area within 2 miles of Chile Chico is covered by water (30%), shrubs (27%), grassland (12%), and cropland (12%), within 10 miles by water (45%) and shrubs (17%), and within 50 miles by sparse vegetation (35%) and shrubs (24%).