Climate and monthly weather forecast
Heihe, China

Taking a glance at Heihe, China, it becomes evident quickly that a predominate Dwb classification according to the Köppen climate classification graces this location with a unique weather story. This classification reflects a Humid continental, severe dry winter, and warm-summer climate, situated in the northern hemisphere. The geographical position of Heihe influences the annual patterns of temperature, precipitation, and humidity significantly.

Throughout the course of the year, the temperature varies distinctly, from minimum averages of -27.4°C (-17.3°F) in the depth of winter to summertime highs of up to 27.1°C (80.8°F). A vast gradient from highs of 27.1°C (80.8°F) in July, the warmest month, to a bitterly cold -27.4°C (-17.3°F) as the average lows experienced in January, unearth the extreme temperature variations in Heihe. In addition to temperature fluctuations, the relative humidity data shows interesting nuances, varying between 55% in April and May to 78% in August.

Precipitation as rainfall and snowfall also exhibits a unique distribution across the year. Rainfall ranges from as little as 3mm (0.12") in February to a peak of 131mm (5.16") in July. Snowfall days are significant during colder periods, with 12 days in December and completely absent from June to September. The daylight hours vary noticeably, starting at 8.1h in December and elongating to 16.3h in June, providing a great span of sunshine-receiving opportunities.

Considering all the weather parameters, the best time to enjoy a visit to Heihe, China, is mainly during the months of May and June. These months offer a comfortable temperature range with maximums ranging from 19.2°C (66.6°F) to 25.1°C (77.2°F) and minimums from 6.1°C (43°F) to 13.2°C (55.8°F). Coupled with comparatively low humidity levels of 55% to 69%, this results in a pleasant climate during these months. The amount of sunshine received during these months stands at 8.1h to 8.5h per day, promising a good amount of daylight for outdoor activities.

With severe dry winters gracing Heihe, the least favorable period to visit this location is in January. The lowest temperatures reach a freezing -27.4°C (-17.3°F) and higher temperatures do not exceed -16.6°C (2.1°F). Combine this with snowfall extending to 11 days and a mere 4h of sunshine accompanied by 73% relative humidity, it truly represents an extremely harsh climate.

Spring in Heihe ushers in rapidly warming temperatures and receding snowfall. From March to May, the maximum temperature shifts from -0.9°C (30.4°F) to 19.2°C (66.6°F) and the minimum temperature transitions from -13°C (8.6°F) to 6.1°C (43°F). This period experiences an increase in rainfall from 6mm (0.24") in March to 41mm (1.61") in May. Relative humidity also creeps upwards during this period, beginning at 62% and ending at 55%.

Amid the June to August stretch, summer in Heihe is characteristically warm with the highest temperatures reaching 27.1°C (80.8°F) in July. The minimum temperatures stay comfortably between 13.2°C (55.8°F) to 16.8°C (62.2°F). Rainfall is highest during this season, peaking at 131mm (5.16") in July. Coupled with the highest relative humidity of 78% in August, the summer period hosts a generally humid atmosphere in Heihe.

Autumn, straddling September to November, witnesses a decline in temperatures and rainfall in Heihe. Maximum temperatures tumble down from 18.7°C (65.7°F) to -5.1°C (22.8°F), while minimums fall from 7.3°C (45.1°F) to -14.6°C (5.7°F). Rainfall during this period decreases to a yearly low of 9mm (0.35") in November. The period also sees a gradual increase in relative humidity from 72% in September to 67% in November.

Winter in Heihe, spanning December to February, tends to be harsh with extremely cold temperatures and considerable snowfall. The maximum temperature plunges to -16.6°C (2.1°F) in December and does not exceed -10.1°C (13.8°F) in February. Minimum temperatures plummet to -27.4°C (-17.3°F) in December. Snowfall peaks during December at 12 days and reduces to 7 days in February. While the average daylight hours are lowest in December, at just over 8h.

January is marked by a profound cold in Heihe, with notable chilliness represented through temperatures plummeting down to a severe low of -27.4°C (-17.3°F). This harsh winter month offers a landscape dominated by snow, with short daylight hours emphasizing the severity of winter. Weather in January »

The cold weather persists into February, yet the temperature profile indicates a moderate softening, a hint that winter is gradually loosening its hold over Heihe. The sting of winter cold becomes a little less relentless, paving the way towards spring. Weather in February »

March marks the transition from the intense cold of winter to the first whispers of spring in Heihe. While still cold, the temperatures are less severe, mitigating the winter harshness and hinting at the arrival of spring. March is characterized by fewer snowfall days as winter loses its grip, and the landscape begins to slowly thaw. Weather in March »

April weather in Heihe exhibits distinct cues of spring despite the residual winter chill in the air. As temperatures start to lean towards a more comfortable scale, snowfall ceases to be a feature in the city's weather. Considering the preceding month of March, April broadens daylight into more extended periods, a trend that enhances outdoor activities. Weather in April »

May in Heihe is a season of renewal, a period in which the city fully steps out of winter's lingering shadow. The transcendence of spring is felt in the air and seen in the landscape, characterizing Heihe's weather in May. Amidst an increasing symphony of chirping birds, the weather agrees with a variety of outdoor activities. Weather in May »

With the arrival of June, summer tentatively sweeps across Heihe. The city basks under longer daylight hours, coinciding with warmer temperatures in a typical summer pattern. The days become consistently warm, marking a clear distinction from the bygone spring of May. Weather in June »

July stands as the warmest month in Heihe, showcasing a pronounced peak in summer warmth with temperatures scaling up to a lofty 27.1°C (80.8°F). The city falls under the full embrace of summer, offering long sunny days that reach their maximum length in the year. Weather in July »

The high heat of July seamlessly extends to August, though Heihe experiences a slight dip in the peak temperatures. While still entrenched in summer warmth, the weather begins to prepare for the onset of autumn. Afternoon storms become more common, hinting at the closing summer chapter. Weather in August »

In Heihe, September introduces the early signs of autumn. The transformation of foliage into vibrant autumn hues becomes more apparent as the month progresses. There's an appreciable decrease in temperature, far removed from the sweltering conditions of August. Weather in September »

October in Heihe is fully autumnal, with the vibrant palette of fall colors subtly starting to fade. Notably chillier than September, the lowering temperatures herald the beginning of the cold season. The number of daylight hours drops in October, hinting at the impending arrival of winter. Weather in October »

November, the last month of the autumn in Heihe, is also a subzero cold month, with an average temperature fluctuating between -14.6°C (5.7°F) and -5.1°C (22.8°F). November's onset brings a clear reduction in the average high-temperature, falling from a frosty 8.6°C (47.5°F) in October to a subzero cold -5.1°C (22.8°F). Weather in November »

The transformation of weather from November to December in Heihe signals the undeniable arrival of winter. Shortened daylight hours, cold temperatures, and frequent snowfall days contribute to the city's winter atmosphere. Heihe, in December, is a snowy haven with shimmering landscapes blanketed with fresh layers of snow. Weather in December »