Climate and Average Weather Year Round in Pu’an China

In Pu’an, the summers are long, warm, muggy, wet, and partly cloudy and the winters are very cold, dry, and mostly clear. Over the course of the year, the temperature typically varies from 32°F to 88°F and is rarely below 28°F or above 95°F.

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

The hot season lasts for 4.0 months, from May 11 to September 10, with an average daily high temperature above 80°F. The hottest month of the year in Pu’an is July, with an average high of 87°F and low of 71°F.

The cold season lasts for 3.0 months, from November 26 to February 26, with an average daily high temperature below 56°F. The coldest month of the year in Pu’an is January, with an average low of 32°F and high of 49°F.

In Pu’an, 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 Pu’an begins around October 12 and lasts for 4.0 months, ending around February 11.

The clearest month of the year in Pu’an is December, during which on average the sky is clear, mostly clear, or partly cloudy 69% of the time.

The cloudier part of the year begins around February 11 and lasts for 8.0 months, ending around October 12.

The cloudiest month of the year in Pu’an is April, 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 Pu’an varies significantly throughout the year.

The wetter season lasts 5.7 months, from April 21 to October 11, with a greater than 26% chance of a given day being a wet day. The month with the most wet days in Pu’an is July, with an average of 15.0 days with at least 0.04 inches of precipitation.

The drier season lasts 6.3 months, from October 11 to April 21. The month with the fewest wet days in Pu’an is January, with an average of 0.5 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 Pu’an is July, with an average of 15.0 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 50% on July 10.

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. Pu’an experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.1 months, from March 12 to November 16, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Pu’an is July, with an average rainfall of 6.9 inches.

The rainless period of the year lasts for 3.9 months, from November 16 to March 12. The month with the least rain in Pu’an is January, with an average rainfall of 0.1 inches.

The length of the day in Pu’an varies significantly over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 3 minutes of daylight; the longest day is June 21, with 14 hours, 15 minutes of daylight.

The earliest sunrise is at 5:51 AM on June 11, and the latest sunrise is 2 hours, 8 minutes later at 7:59 AM on January 9. The earliest sunset is at 5:53 PM on December 3, and the latest sunset is 2 hours, 15 minutes later at 8:08 PM on June 30.

Daylight saving time (DST) is not observed in Pu’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.

Pu’an experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.2 months, from June 8 to September 14, during which time the comfort level is muggy, oppressive, or miserable at least 21% of the time. The month with the most muggy days in Pu’an is July, with 24.6 days that are muggy or worse.

The least muggy day of the year is February 7, 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 Pu’an experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.1 months, from February 22 to May 26, with average wind speeds of more than 6.2 miles per hour. The windiest month of the year in Pu’an is April, with an average hourly wind speed of 6.9 miles per hour.

The calmer time of year lasts for 8.9 months, from May 26 to February 22. The calmest month of the year in Pu’an is July, with an average hourly wind speed of 5.5 miles per hour.

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

The wind is most often from the south for 5.0 months, from March 14 to August 15, with a peak percentage of 39% on July 20. The wind is most often from the north for 7.0 months, from August 15 to March 14, with a peak percentage of 48% on January 1.

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

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 Pu’an for hot-weather activities is from early July to late 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 Pu’an typically lasts for 9.3 months (281 days), from around February 24 to around December 1, rarely starting before February 3 or after March 16, and rarely ending before November 13 or after December 18.

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 Pu’an should appear around March 12, only rarely appearing before February 29 or after March 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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 4.0 months, from April 17 to August 19, with an average daily incident shortwave energy per square meter above 5.5 kWh. The brightest month of the year in Pu’an is June, with an average of 6.1 kWh.

The darker period of the year lasts for 3.5 months, from October 25 to February 12, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest month of the year in Pu’an is December, with an average of 2.8 kWh.

For the purposes of this report, the geographical coordinates of Pu’an are 32.037 deg latitude, 105.467 deg longitude, and 1,575 ft elevation.

The topography within 2 miles of Pu’an contains very significant variations in elevation, with a maximum elevation change of 978 feet and an average elevation above sea level of 1,983 feet. Within 10 miles contains very significant variations in elevation (2,228 feet). Within 50 miles contains large variations in elevation (8,825 feet).

The area within 2 miles of Pu’an is covered by grassland (51%), cropland (26%), and shrubs (11%), within 10 miles by grassland (40%) and cropland (25%), and within 50 miles by cropland (28%) and grassland (28%).