Spring Weather in Gannan China

Daily high temperatures increase by 48°F, from 26°F to 74°F, rarely falling below 15°F or exceeding 85°F.

Daily low temperatures increase by 49°F, from 6°F to 55°F, rarely falling below -5°F or exceeding 63°F.

For reference, on July 10, the hottest day of the year, temperatures in Gannan typically range from 65°F to 80°F, while on January 12, the coldest day of the year, they range from -11°F to 8°F.

The figure below shows you a compact characterization of the hourly average spring temperatures. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Winnipeg, Manitoba, Canada (5,265 miles away) is the far-away foreign place with temperatures most similar to Gannan (view comparison).

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Compare Gannan to another city:

The spring in Gannan experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 39% to 47%.

The clearest day of the spring is March 1, with clear, mostly clear, or partly cloudy conditions 61% of the time.

For reference, on June 22, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 50%, while on January 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 68%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Gannan, the chance of a wet day over the course of the spring is very rapidly increasing, starting the season at 2% and ending it at 23%.

For reference, the year's highest daily chance of a wet day is 41% on July 15, and its lowest chance is 0% on January 31.

Over the course of the spring in Gannan, the chance of a day with only rain increases from 0% to 23%, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 1% throughout.

Rainfall

To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the spring in Gannan is rapidly increasing, starting the season at 0.0 inches, when it rarely exceeds 0.0 inches or falls below -0.0 inches, and ending the season at 1.8 inches, when it rarely exceeds 3.5 inches or falls below 0.3 inches.

Over the course of the spring in Gannan, the length of the day is very rapidly increasing. From the start to the end of the season, the length of the day increases by 4 hours, 41 minutes, implying an average daily increase of 3 minutes, 5 seconds, and weekly increase of 21 minutes, 38 seconds.

The shortest day of the spring is March 1, with 11 hours, 3 minutes of daylight and the longest day is May 31, with 15 hours, 44 minutes of daylight.

The latest sunrise of the spring in Gannan is 6:27 AM on March 1 and the earliest sunrise is 2 hours, 35 minutes earlier at 3:51 AM on May 31.

The earliest sunset is 5:30 PM on March 1 and the latest sunset is 2 hours, 6 minutes later at 7:36 PM on May 31.

Daylight saving time is not observed in Gannan during 2025.

For reference, on June 21, the longest day of the year, the Sun rises at 3:46 AM and sets 16 hours, 2 minutes later, at 7:48 PM, while on December 21, the shortest day of the year, it rises at 7:32 AM and sets 8 hours, 23 minutes later, at 3:55 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for the spring of 2025. 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

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 chance that a given day will be muggy in Gannan is essentially constant during the spring, remaining around 0% throughout.

For reference, on July 25, the muggiest day of the year, there are muggy conditions 42% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

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 Gannan is essentially constant during the spring, remaining within 0.7 miles per hour of 9.5 miles per hour throughout.

For reference, on April 16, the windiest day of the year, the daily average wind speed is 10.3 miles per hour, while on August 6, the calmest day of the year, the daily average wind speed is 6.8 miles per hour.

The highest daily average wind speed during the spring is 10.3 miles per hour on April 21.

The hourly average wind direction in Gannan throughout the spring is predominantly from the north, with a peak proportion of 54% on March 1.

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 Gannan typically lasts for 5.3 months (160 days), from around April 27 to around October 4, rarely starting before April 12 or after May 12, and rarely ending before September 19 or after October 20.

During the spring in Gannan, the chance that a given day is within the growing season is very rapidly increasing rising from 0% to 100% over the course of the season.

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.

The average accumulated growing degree days in Gannan are increasing during the spring, increasing by 376°F, from 0°F to 376°F, over the course of the season.

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 in Gannan is very rapidly increasing during the spring, rising by 3.1 kWh, from 3.4 kWh to 6.5 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Gannan are 47.915 deg latitude, 123.503 deg longitude, and 617 ft elevation.

The topography within 2 miles of Gannan contains only modest variations in elevation, with a maximum elevation change of 135 feet and an average elevation above sea level of 621 feet. Within 10 miles also contains only modest variations in elevation (466 feet). Within 50 miles contains only modest variations in elevation (2,461 feet).

The area within 2 miles of Gannan is covered by cropland (47%) and artificial surfaces (38%), within 10 miles by cropland (64%) and grassland (11%), and within 50 miles by cropland (54%) and trees (20%).