Climate and Average Weather Year Round in Yimamu China

In Yimamu, the summers are hot and mostly clear, the winters are freezing and partly cloudy, and it is dry year round. Over the course of the year, the temperature typically varies from 19°F to 91°F and is rarely below 12°F or above 98°F.

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

The hot season lasts for 3.6 months, from May 24 to September 13, with an average daily high temperature above 79°F. The hottest month of the year in Yimamu is July, with an average high of 90°F and low of 66°F.

The cold season lasts for 3.1 months, from November 23 to February 28, with an average daily high temperature below 46°F. The coldest month of the year in Yimamu is January, with an average low of 19°F and high of 35°F.

In Yimamu, 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 Yimamu begins around June 15 and lasts for 4.3 months, ending around October 25.

The clearest month of the year in Yimamu is August, during which on average the sky is clear, mostly clear, or partly cloudy 84% of the time.

The cloudier part of the year begins around October 25 and lasts for 7.7 months, ending around June 15.

The cloudiest month of the year in Yimamu is March, during which on average the sky is overcast or mostly cloudy 58% 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 Yimamu varies throughout the year.

The wetter season lasts 4.7 months, from May 1 to September 23, with a greater than 7% chance of a given day being a wet day. The month with the most wet days in Yimamu is August, with an average of 3.9 days with at least 0.04 inches of precipitation.

The drier season lasts 7.3 months, from September 23 to May 1. The month with the fewest wet days in Yimamu is December, with an average of 0.1 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 Yimamu is August, with an average of 3.9 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 13% on August 5.

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. Yimamu experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 2.3 months, from July 2 to September 13, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Yimamu is August, with an average rainfall of 0.7 inches.

The rainless period of the year lasts for 9.7 months, from September 13 to July 2. The month with the least rain in Yimamu is January, with an average rainfall of 0.0 inches.

The length of the day in Yimamu varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 12 minutes of daylight; the longest day is June 21, with 15 hours, 9 minutes of daylight.

The earliest sunrise is at 7:08 AM on June 14, and the latest sunrise is 2 hours, 59 minutes later at 10:07 AM on January 4. The earliest sunset is at 7:13 PM on December 7, and the latest sunset is 3 hours, 6 minutes later at 10:19 PM on June 27.

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

The perceived humidity level in Yimamu, 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 Yimamu experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 7.5 months, from March 3 to October 20, with average wind speeds of more than 4.9 miles per hour. The windiest month of the year in Yimamu is May, with an average hourly wind speed of 6.8 miles per hour.

The calmer time of year lasts for 4.5 months, from October 20 to March 3. The calmest month of the year in Yimamu is December, with an average hourly wind speed of 3.1 miles per hour.

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

The wind is most often from the north for 7.9 months, from March 19 to November 17, with a peak percentage of 44% on June 11. The wind is most often from the south for 4.1 months, from November 17 to March 19, with a peak percentage of 34% on January 1.

To characterize how pleasant the weather is in Yimamu 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 Yimamu for general outdoor tourist activities is from mid June to mid September, with a peak score in the third 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 Yimamu for hot-weather activities is from early July to mid 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 Yimamu typically lasts for 7.6 months (234 days), from around March 20 to around November 8, rarely starting before March 2 or after April 7, and rarely ending before October 21 or after November 27.

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 Yimamu should appear around April 6, only rarely appearing before March 30 or after April 14.

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 3.8 months, from April 28 to August 21, with an average daily incident shortwave energy per square meter above 6.3 kWh. The brightest month of the year in Yimamu is July, with an average of 7.2 kWh.

The darker period of the year lasts for 3.2 months, from November 3 to February 10, with an average daily incident shortwave energy per square meter below 3.3 kWh. The darkest month of the year in Yimamu is December, with an average of 2.3 kWh.

For the purposes of this report, the geographical coordinates of Yimamu are 41.204 deg latitude, 79.458 deg longitude, and 4,262 ft elevation.

The topography within 2 miles of Yimamu contains very significant variations in elevation, with a maximum elevation change of 1,627 feet and an average elevation above sea level of 4,347 feet. Within 10 miles contains very significant variations in elevation (4,511 feet). Within 50 miles also contains extreme variations in elevation (16,293 feet).

The area within 2 miles of Yimamu is covered by cropland (70%) and artificial surfaces (18%), within 10 miles by bare soil (48%) and cropland (31%), and within 50 miles by bare soil (47%) and grassland (37%).