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Lappeenranta has a warm-summer humid continental climate.
Warm summers and long, cold winters with snow. Rain in every month — here's what that means in plain terms.
What this climate feels like
The four things a regular visitor actually wants to know:
Highs near 72°F in July.
Lows near 15°F in January. About 161 freezing nights a year.
About 26 in of rain a year. Wettest in July.
Cloudy skies much of the year.
What "warm-summer humid continental" means
Climate scientists sort every place on Earth into about 30 climate types, based on how hot, cold, wet and dry it is across the year. Lappeenranta's type — warm-summer humid continental — sits in the broad family of four-season continental climates.
Researchers write climate types as a short letter code. Here is what each letter means:
Cities with the same climate as Lappeenranta
A warm-summer humid continental climate (Dfb) — these recognizable cities share it. If you know one of them, you know roughly what to expect.
Lappeenranta sits near a climate boundary
This city sits right on the line between warm-summer humid continental and the next type along. Different climate maps file it on different sides of that line; the lived weather doesn't change at the line — it's a naming boundary, not a wall.
Has Lappeenranta's climate type changed?
A climate type is a coarse bucket. It can hold steady for years while the weather inside it shifts — or tip into the next bucket.
What this climate means for you
A ~5-month growing season — hardy apples, maples, root vegetables, brassicas. Heat-loving crops are marginal without season-extension.
Summer is the practical window; autumn brings spectacular foliage in many areas. Winter is for skiing and ice — beautiful but brutal.
Long, cold winters and warm but not hot summers. Heating dominates. A strong outdoor culture in summer to balance the long indoor winter.
Where these numbers come from
The climate type and the month-by-month figures on this page are computed from Lappeenranta's measured 30-year climate normals (1991–2020) — the same official records behind Lappeenranta's main climate page, so the two always agree.
Long-range climate maps measure things slightly differently and can place a city in a neighbouring category. Where they differ, this page uses the measured station record as the climate today.
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Lappeenranta Lentoasema, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.