Climate and Average Weather Year Round in Huangshankou China

In Huangshankou, the summers are long, warm, muggy, and wet; 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 26°F to 87°F and is rarely below 20°F or above 95°F.

Based on the tourism score, the best times of year to visit Huangshankou for warm-weather activities are from mid May to mid June and from mid August to early October.

The hot season lasts for 4.1 months, from May 11 to September 16, with an average daily high temperature above 78°F. The hottest month of the year in Huangshankou is July, with an average high of 87°F and low of 73°F.

The cold season lasts for 3.0 months, from November 28 to February 27, with an average daily high temperature below 51°F. The coldest month of the year in Huangshankou is January, with an average low of 26°F and high of 43°F.

In Huangshankou, 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 Huangshankou begins around September 2 and lasts for 5.2 months, ending around February 9.

The clearest month of the year in Huangshankou is December, during which on average the sky is clear, mostly clear, or partly cloudy 68% of the time.

The cloudier part of the year begins around February 9 and lasts for 6.8 months, ending around September 2.

The cloudiest month of the year in Huangshankou is March, during which on average the sky is overcast or mostly cloudy 52% 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 Huangshankou varies significantly throughout the year.

The wetter season lasts 4.8 months, from April 28 to September 22, with a greater than 21% chance of a given day being a wet day. The month with the most wet days in Huangshankou is July, with an average of 10.8 days with at least 0.04 inches of precipitation.

The drier season lasts 7.2 months, from September 22 to April 28. The month with the fewest wet days in Huangshankou is January, with an average of 1.7 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 Huangshankou changes throughout the year.

Rain alone is the most common for 12 months, from January 27 to January 12. The month with the most days of rain alone in Huangshankou is July, with an average of 10.8 days.

Snow alone is the most common for 2.1 weeks, from January 12 to January 27. The month with the most days of snow alone in Huangshankou is January, with an average of 0.7 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. Huangshankou experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.7 months, from February 13 to December 3, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Huangshankou is July, with an average rainfall of 6.0 inches.

The rainless period of the year lasts for 2.4 months, from December 3 to February 13. The month with the least rain in Huangshankou is January, with an average rainfall of 0.2 inches.

Snowfall

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

The snowy period of the year lasts for 3.0 months, from December 12 to March 10, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Huangshankou is January, with an average snowfall of 1.8 inches.

The snowless period of the year lasts for 9.0 months, from March 10 to December 12. The least snow falls around July 16, with an average total accumulation of 0.0 inches.

The length of the day in Huangshankou varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 58 minutes of daylight; the longest day is June 21, with 14 hours, 20 minutes of daylight.

The earliest sunrise is at 5:17 AM on June 12, and the latest sunrise is 2 hours, 13 minutes later at 7:30 AM on January 9. The earliest sunset is at 5:19 PM on December 4, and the latest sunset is 2 hours, 20 minutes later at 7:39 PM on June 29.

Daylight saving time (DST) is not observed in Huangshankou 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.

Huangshankou experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.7 months, from May 29 to September 19, during which time the comfort level is muggy, oppressive, or miserable at least 24% of the time. The month with the most muggy days in Huangshankou is July, with 29.4 days that are muggy or worse.

The least muggy day of the year is February 1, 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 Huangshankou experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.5 months, from February 11 to May 26, with average wind speeds of more than 7.7 miles per hour. The windiest month of the year in Huangshankou is April, with an average hourly wind speed of 8.6 miles per hour.

The calmer time of year lasts for 8.5 months, from May 26 to February 11. The calmest month of the year in Huangshankou is August, with an average hourly wind speed of 6.7 miles per hour.

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

The wind is most often from the south for 4.6 months, from March 17 to August 4, with a peak percentage of 46% on July 12. The wind is most often from the east for 1.8 months, from August 4 to September 29, with a peak percentage of 39% on August 26. The wind is most often from the north for 5.6 months, from September 29 to March 17, with a peak percentage of 41% on January 1.

To characterize how pleasant the weather is in Huangshankou 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 times of year to visit Huangshankou for general outdoor tourist activities are from mid May to mid June and from mid August to early October, with a peak score in the second week of September.

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 Huangshankou for hot-weather activities is from mid June to late 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 Huangshankou typically lasts for 8.2 months (250 days), from around March 13 to around November 18, rarely starting before February 23 or after March 31, and rarely ending before November 2 or after December 4.

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 Huangshankou should appear around March 22, only rarely appearing before March 8 or after April 4.

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 4.2 months, from April 17 to August 22, with an average daily incident shortwave energy per square meter above 5.5 kWh. The brightest month of the year in Huangshankou is June, with an average of 6.1 kWh.

The darker period of the year lasts for 3.3 months, from October 31 to February 9, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest month of the year in Huangshankou is December, with an average of 2.7 kWh.

For the purposes of this report, the geographical coordinates of Huangshankou are 33.041 deg latitude, 113.317 deg longitude, and 679 ft elevation.

The topography within 2 miles of Huangshankou contains very significant variations in elevation, with a maximum elevation change of 1,106 feet and an average elevation above sea level of 796 feet. Within 10 miles contains very significant variations in elevation (1,969 feet). Within 50 miles contains large variations in elevation (3,481 feet).

The area within 2 miles of Huangshankou is covered by cropland (65%) and trees (17%), within 10 miles by cropland (67%) and trees (19%), and within 50 miles by cropland (68%) and trees (15%).