Climate and Average Weather Year Round in Yong’an China

In Yong’an, the summers are long, warm, and partly cloudy and the winters are freezing, snowy, and mostly clear. Over the course of the year, the temperature typically varies from 12°F to 83°F and is rarely below 3°F or above 92°F.

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

The warm season lasts for 4.1 months, from May 7 to September 11, with an average daily high temperature above 73°F. The hottest month of the year in Yong’an is July, with an average high of 83°F and low of 65°F.

The cold season lasts for 3.0 months, from November 23 to February 22, with an average daily high temperature below 43°F. The coldest month of the year in Yong’an is January, with an average low of 12°F and high of 34°F.

In Yong’an, 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 Yong’an begins around October 16 and lasts for 3.7 months, ending around February 8.

The clearest month of the year in Yong’an is December, during which on average the sky is clear, mostly clear, or partly cloudy 71% of the time.

The cloudier part of the year begins around February 8 and lasts for 8.3 months, ending around October 16.

The cloudiest month of the year in Yong’an is March, during which on average the sky is overcast or mostly cloudy 45% 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 Yong’an varies significantly throughout the year.

The wetter season lasts 4.5 months, from May 21 to October 5, with a greater than 16% chance of a given day being a wet day. The month with the most wet days in Yong’an is July, with an average of 9.4 days with at least 0.04 inches of precipitation.

The drier season lasts 7.5 months, from October 5 to May 21. The month with the fewest wet days in Yong’an is January, with an average of 0.4 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. Based on this categorization, the most common form of precipitation in Yong’an changes throughout the year.

Rain alone is the most common for 9.7 months, from February 12 to December 4. The month with the most days of rain alone in Yong’an is July, with an average of 9.4 days.

Snow alone is the most common for 2.3 months, from December 4 to February 12. The month with the most days of snow alone in Yong’an is February, with an average of 0.4 days.

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. Yong’an experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.2 months, from March 29 to November 5, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Yong’an is July, with an average rainfall of 3.5 inches.

The rainless period of the year lasts for 4.8 months, from November 5 to March 29. The month with the least rain in Yong’an is January, with an average rainfall of 0.0 inches.

The length of the day in Yong’an varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 39 minutes of daylight; the longest day is June 21, with 14 hours, 40 minutes of daylight.

The earliest sunrise is at 5:14 AM on June 13, and the latest sunrise is 2 hours, 32 minutes later at 7:46 AM on January 7. The earliest sunset is at 5:17 PM on December 6, and the latest sunset is 2 hours, 39 minutes later at 7:56 PM on June 28.

Daylight saving time (DST) is not observed in Yong’an during 2024.

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.

Yong’an experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 2.2 months, from June 23 to August 29, during which time the comfort level is muggy, oppressive, or miserable at least 12% of the time. The month with the most muggy days in Yong’an is July, with 12.0 days that are muggy or worse.

The least muggy day of the year is February 22, 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 Yong’an experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 4.1 months, from January 29 to June 1, with average wind speeds of more than 7.7 miles per hour. The windiest month of the year in Yong’an is April, with an average hourly wind speed of 9.1 miles per hour.

The calmer time of year lasts for 7.9 months, from June 1 to January 29. The calmest month of the year in Yong’an is August, with an average hourly wind speed of 6.1 miles per hour.

The predominant average hourly wind direction in Yong’an varies throughout the year.

The wind is most often from the south for 7.7 months, from March 1 to October 22, with a peak percentage of 54% on July 19. The wind is most often from the north for 4.3 months, from October 22 to March 1, with a peak percentage of 45% on January 1.

To characterize how pleasant the weather is in Yong’an 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 Yong’an for general outdoor tourist activities is from early June to early September, with a peak score in the last week of July.

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 Yong’an for hot-weather activities is from early July to early August, with a peak score in the last week of July.

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 Yong’an typically lasts for 6.4 months (197 days), from around April 5 to around October 19, rarely starting before March 18 or after April 24, and rarely ending before October 1 or after November 5.

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 Yong’an should appear around April 8, only rarely appearing before March 31 or after April 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 4.0 months, from April 10 to August 9, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest month of the year in Yong’an is June, with an average of 6.6 kWh.

The darker period of the year lasts for 3.2 months, from November 1 to February 6, with an average daily incident shortwave energy per square meter below 3.5 kWh. The darkest month of the year in Yong’an is December, with an average of 2.8 kWh.

For the purposes of this report, the geographical coordinates of Yong’an are 36.658 deg latitude, 111.566 deg longitude, and 3,031 ft elevation.

The topography within 2 miles of Yong’an contains very significant variations in elevation, with a maximum elevation change of 991 feet and an average elevation above sea level of 3,024 feet. Within 10 miles contains very significant variations in elevation (2,874 feet). Within 50 miles contains large variations in elevation (7,031 feet).

The area within 2 miles of Yong’an is covered by grassland (66%) and cropland (29%), within 10 miles by grassland (61%) and cropland (29%), and within 50 miles by grassland (42%) and cropland (31%).