The climate of Riihimäki
Riihimäki, located in the southern part of
Finland, experiences a Humid Continental climate, characterized by large temperature variations throughout the year, with warm summers and cold winters. This climate type is identified as Dfb under Köppen climate classification.
Examining the weather data, the highest observed temperature falls between 22.2°C (72°F) in
July and a low of -8.3°C (17.1°F) in
January. Despite this range, the mercury rarely breaches 22.2°C (72°F) or drops below -8.3°C (17.1°F), keeping the climate relatively consistent. The prevalence of snow becomes evident in the colder months, with snowfall reaching as high as 227mm (8.94") in January and 210mm (8.27") in
December. By contrast, the hot summer months, from
June to
August, witness no snowfall.
Rainfall in Riihimäki varies marginally across the year, ranging from 18mm (0.71") in August to 44mm (1.73") in December. Although December sees the most significant precipitation, there is no specific dry period in the year. Contrastingly, the lowest amount of rainfall is seen in August, though it is slightly higher than the national average. Relative humidity remains highest at 95% in
February and drops to the year's low at 67% in
May, painting a picture of relatively humid conditions throughout the year.
The consistency of the wind speed is found to be in the range of 9.1km/h (5.7mph) in August to 11.4km/h (7.1mph) in December, exhibiting mild to moderate wind conditions. Furthermore, the cloud cover varies from 42% in August and
September to a peak of 78% in January and February.
The best time to visit Riihimäki
Considering the climate data, the optimal time for visiting
Riihimäki would be between
June to
August. The average temperature during these months varies from 19.4°C (66.9°F) to 22.2°C (72°F), providing pleasant and warm conditions. The hours of sunshine range from 9.4h to 11.7h per day, offering sufficient daylight for tourists to enjoy outdoor activities.
The worst time to visit Riihimäki
The least favorable time to visit
Riihimäki would be in the colder months between
December and
February. These months report the lowest temperatures, dropping to -8.3°C (17.1°F) in
January. Additionally, the presence of considerable snowfall, totalling 227mm (8.94") in January and 210mm (8.27") in December, can hinder travel and outdoor activities.
Spring weather in Riihimäki
March signals the onset of Spring with temperatures rising from -2.8°C (27°F) to 7.8°C (46°F) by
May. The increase in temperature is accompanied by a decrease in snowfall, from 202mm (7.95") in March to no snow by May. Rainfall remains relatively low during spring, ranging from 26mm (1.02") to 35mm (1.38").
Summer weather in Riihimäki
In
Riihimäki, summer warmth endures between
June and
August. The average temperatures during these months oscillate from 19.4°C (66.9°F) to 22.2°C (72°F). Rainfall doesn't intrude much into summer, peaking at just 29mm (1.14") in June and
July and declining to 18mm (0.71") in August, the lowest rainfall month.
Autumn weather in Riihimäki
Autumn in
Riihimäki settles between
September and
November, with temperatures dropping from 15.2°C (59.4°F) in September to 2.9°C (37.2°F) in November. Rainfall manifests during autumn, marking 36mm (1.42") in
October and 40mm (1.57") in November. The cloud cover is notably increasing in autumn, reaching a peak of 75% by November.
Winter weather in Riihimäki
The arrival of
December signals the start of winter and brings along a significant drop in temperature, plunging to -0.8°C (30.6°F) in December and reaching the year's low at -8.3°C (17.1°F) in
January. Snowfall is predominant during these months, with substantial amounts of 210mm (8.27") in December and peaking at 227mm (8.94") in January. Despite the heavy snowfall, the rainfall doesn't decrease considerably, maintaining an average of 44mm (1.73") in December.
Weather in January
Riihimäki welcomes the new year with the chill of winter. Snow dominates the landscape with an average snowfall of 227mm (8.94") and with the mercury dipping to as low as -8.3°C (17.1°F). The daylight hours are short and the sun only emerges for a brief 1.8 hours a day.
Weather in January » Weather in February
The wintry conditions persist in
February with minimal changes from
January's weather. It holds on to the winter reputation with an average high temperature hovering around -2.8°C (27°F). The city experiences a slight increase in daylight hours, offering a bit of respite for the residents.
Weather in February »Weather in March
March marks the transition between winter and spring with temperature highs slightly crossing the freezing point to reach 0.7°C (33.3°F) on average. The snowfall decreases significantly from the preceding month, paving the way for longer daylight hours.
Weather in March »
Weather in April
In
April,
Riihimäki begins to welcome warmer days, and the landscape begins to transform. This is evident as the average temperature jumps from 0.7°C (33.3°F) in
March to a noticeable 7.8°C (46°F). It’s a time of change, as flora and fauna start to revive after the long winter.
Weather in April »Weather in May
As the middle of the year approaches,
May brings in full-fledged spring with its warming temperatures. Sunshine hours take a leap to hit an average of 9.5 hours per day. This month sees a significant reduction in the winter wear, being replaced by lightweight jackets.
Weather in May »Weather in June
June is the prelude to summer, and it provides a glimpse of what to expect. It brings the highest level of daylight, accounting for about 19 hours per day. The average high temperature reaches 19.4°C (66.9°F), setting the ground for summer.
Weather in June »
Weather in July
July is the warmest month in
Riihimäki with the temperature hitting a peak at 22.2°C (72°F). It pulses with the summer rhythm as the city lights up. Heading outdoors becomes more pleasurable with the warm wind gently blowing through.
Weather in July » Weather in August
The peak of summer is experienced in
August. With the highest temperature hitting 20.8°C (69.4°F), it's the perfect time for sunbathing.
Riihimäki gleams brighter as the sun rays paint the cityscape with a golden hue. There’s an element of fervor in the air as the daylight hours remain considerable.
Weather in August »Weather in September
September ushers in the fall season, and there are signs of weather transition. The monthly temperature drops to an average high of 15.2°C (59.4°F). A transformation begins as the city starts to reveal its fall colors. The wind picks up a gentle rhythm, hinting at the approaching winter.
Weather in September »
Weather in October
As
October steps in,
Riihimäki prepares for the return of winter. The average low temperatures drop to 2.5°C (36.5°F) indicating a significant change. Visitors and residents should pack appropriately to meet the weather's changing demands.
Weather in October »Weather in November
November weather exhibits a more visible change from fall to winter. The first signs of winter are evident as the city receives an average snowfall of 74mm (2.91"). The daylight hours reduce considerably, giving way to longer nights.
Weather in November » Weather in December
Riihimäki dives deep into winter in
December with average temperature lows dropping to -4.3°C (24.3°F). Snowfall intensifies and blankets the city, bringing in the festive spirit. Despite the harsh cold, the city showcases an enchanting winter wonderland vibe.
Weather in December » [Resources]