Järna Weather in December
Järna in December
The short of it: Järna in December averages a high of 3 °C (37 °F) and a low of -2 °C (28 °F), with 54 mm (2.1 in) of rain and about 6 h 11 min of daylight. Rated 2 of 5 for a visit; the best months are July and August. Source: TerraClimate climate normals, 1991–2020.
Average high 3° · low -2° · rain 54 mm · daylight 6 h 11 min
✦✦ Travel with care for a visit · best months: July & August
Thirty years of records give Järna an average December high of 3°, a low of -2° and some 54 mm of rain. Much like November: highs about 3°, nights near -2°. Pack the buffalo coat. Rain is modest, about 54 mm, the 7th wettest month. Snow lies on the ground; mind the passes.
The sun is up for about 6 h 11 min in mid-December, 82 minutes less than a month before. Lanterns are lit by mid-afternoon.
For the traveller: pack a heavy coat, gloves and a scarf. The Almanac rates December 2 of 5 for a visit; the finest months here are July and August.
Against its neighbours, Järna runs about middling and about as wet in December. Södertälje, 12 km to the NNE, sees much the same highs.
December in Järna, by the numbers
- Warmth rank
- 10th warmest of 12
- Rain rank
- 7th wettest of 12
- Versus November
- 3° colder, 4.0 mm less rain
- Versus January
- 2° warmer
- Day–night spread
- 5°
- Snow season
- Nov–Mar
- Daylight, mid-month
- 6 h 11 min
- Average wind
- 17 km/h