Climate and Average Weather Year Round in Heshi China

In Heshi, the summers are hot, muggy, wet, and mostly cloudy and the winters are very cold and partly cloudy. Over the course of the year, the temperature typically varies from 29°F to 92°F and is rarely below 21°F or above 100°F.

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

The hot season lasts for 3.8 months, from May 21 to September 15, with an average daily high temperature above 83°F. The hottest month of the year in Heshi is July, with an average high of 91°F and low of 77°F.

The cold season lasts for 3.0 months, from December 1 to March 2, with an average daily high temperature below 54°F. The coldest month of the year in Heshi is January, with an average low of 29°F and high of 46°F.

In Heshi, 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 Heshi begins around August 17 and lasts for 6.6 months, ending around March 5.

The clearest month of the year in Heshi is November, 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 March 5 and lasts for 5.4 months, ending around August 17.

The cloudiest month of the year in Heshi is July, during which on average the sky is overcast or mostly cloudy 66% 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 Heshi varies significantly throughout the year.

The wetter season lasts 2.9 months, from June 7 to September 5, with a greater than 28% chance of a given day being a wet day. The month with the most wet days in Heshi is July, with an average of 12.2 days with at least 0.04 inches of precipitation.

The drier season lasts 9.1 months, from September 5 to June 7. The month with the fewest wet days in Heshi is December, with an average of 3.4 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. The month with the most days of rain alone in Heshi is July, with an average of 12.2 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 47% on July 3.

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. Heshi experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Heshi. The month with the most rain in Heshi is July, with an average rainfall of 6.6 inches.

The month with the least rain in Heshi is December, with an average rainfall of 0.9 inches.

The length of the day in Heshi varies significantly over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 2 minutes of daylight; the longest day is June 21, with 14 hours, 16 minutes of daylight.

The earliest sunrise is at 4:52 AM on June 12, and the latest sunrise is 2 hours, 9 minutes later at 7:01 AM on January 9. The earliest sunset is at 4:54 PM on December 3, and the latest sunset is 2 hours, 16 minutes later at 7:10 PM on June 30.

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

Heshi experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.1 months, from May 24 to September 29, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The month with the most muggy days in Heshi is July, with 30.0 days that are muggy or worse.

The month with the fewest muggy days in Heshi is January, with 0.0 days that are muggy or worse.

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 Heshi experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.0 months, from February 11 to June 10, with average wind speeds of more than 8.8 miles per hour. The windiest month of the year in Heshi is April, with an average hourly wind speed of 9.4 miles per hour.

The calmer time of year lasts for 8.0 months, from June 10 to February 11. The calmest month of the year in Heshi is October, with an average hourly wind speed of 8.1 miles per hour.

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

The wind is most often from the east for 1.3 months, from March 3 to April 12; for 1.5 months, from May 14 to June 30; and for 2.8 months, from July 29 to October 24, with a peak percentage of 48% on September 12. The wind is most often from the south for 1.1 months, from April 12 to May 14 and for 4.1 weeks, from June 30 to July 29, with a peak percentage of 42% on July 14. The wind is most often from the north for 4.3 months, from October 24 to March 3, with a peak percentage of 45% on January 1.

Heshi is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.2 months, from June 27 to October 2, with an average temperature above 73°F. The month of the year in Heshi with the warmest water is August, with an average temperature of 80°F.

The time of year with cooler water lasts for 3.4 months, from December 24 to April 6, with an average temperature below 51°F. The month of the year in Heshi with the coolest water is February, with an average temperature of 44°F.

To characterize how pleasant the weather is in Heshi 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 Heshi for general outdoor tourist activities are from mid May to early June and from early September to mid October, with a peak score in the last 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 Heshi for hot-weather activities is from late July to early September, with a peak score in the third 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 Heshi typically lasts for 8.0 months (247 days), from around March 16 to around November 18, rarely starting before February 27 or after April 4, and rarely ending before October 30 or after December 6.

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 Heshi should appear around March 16, only rarely appearing before March 1 or after April 2.

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 2.1 months, from April 18 to June 21, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest month of the year in Heshi is May, with an average of 5.9 kWh.

The darker period of the year lasts for 3.0 months, from November 6 to February 8, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest month of the year in Heshi is December, with an average of 2.8 kWh.

For the purposes of this report, the geographical coordinates of Heshi are 32.207 deg latitude, 120.136 deg longitude, and 39 ft elevation.

The topography within 2 miles of Heshi is essentially flat, with a maximum elevation change of 95 feet and an average elevation above sea level of 18 feet. Within 10 miles is essentially flat (315 feet). Within 50 miles contains only modest variations in elevation (1,332 feet).

The area within 2 miles of Heshi is covered by cropland (74%) and artificial surfaces (26%), within 10 miles by cropland (75%) and artificial surfaces (25%), and within 50 miles by cropland (71%) and artificial surfaces (16%).