The Frontier Gazette & Almanack
“Fair Warning for Every Town Under the Sky” · Est. 1881
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Iserlohn Weather in December

Iserlohn in December

The short of it: Iserlohn in December averages a high of 6 °C (42 °F) and a low of 1 °C (33 °F), with 103 mm (4.1 in) of rain and about 7 h 52 min of daylight. Rated 1 of 5 for a visit; the best months are May and July. Source: TerraClimate climate normals, 1991–2020.

Average high 6° · low 1° · rain 103 mm · daylight 7 h 52 min

✦ Travel with care for a visit · best months: May & July

December in Iserlohn brings afternoons near 6° and nights around 1°, with about 103 mm of rain over the month. Much like November: highs about 6°, nights near 1°. Pack the buffalo coat. Wet spells are common — about 103 mm, the 2nd wettest month. The first lasting snow usually comes now.

The sun is up for about 7 h 52 min in mid-December, 54 minutes less than a month before.

For the traveller: pack a heavy coat, gloves and a scarf, and an oilskin besides. The Almanac rates December 1 of 5 for a visit; the finest months here are May and July.

Against its neighbours, Iserlohn runs cooler than most and about as wet in December. Hagen, 16 km to the W, sees much the same highs.

December in Iserlohn, by the numbers

Warmth rank
11th warmest of 12
Rain rank
2nd wettest of 12
Versus November
3° colder, 14 mm more rain
Versus January
1° warmer
Day–night spread
5°
Snow season
Dec–Feb
Daylight, mid-month
7 h 52 min
Average wind
14 km/h

Neighbouring Towns

December averages · distance by the crow’s flight
TownDistanceHighLowRain
HagenNorth Rhine-Westphalia16 km W6°1°106 mm
UnnaNorth Rhine-Westphalia18 km N6°1°86 mm
LüdenscheidNorth Rhine-Westphalia18 km SSW5°0°130 mm
DortmundNorth Rhine-Westphalia23 km NW6°1°84 mm
WittenNorth Rhine-Westphalia25 km WNW6°1°100 mm
ArnsbergNorth Rhine-Westphalia26 km E5°0°103 mm
LünenNorth Rhine-Westphalia29 km NNW7°1°79 mm
Castrop-RauxelNorth Rhine-Westphalia34 km NW6°2°90 mm

The Almanac · Iserlohn Month by Month

Climate normals 1991–2020 · pick a month
PrecipitationAverage highAverage low
Travel with care
The Almanac Speaks
December
✦✦✦✦✦

Much like November: highs about 6°, nights near 1°. Pack the buffalo coat. Wet spells are common — about 103 mm, the 2nd wettest month. The first lasting snow usually comes now.

Climate of Iserlohn by month
MonthHighLowRainWindDaylightVisit
January5°0°100 mm15 km/h8 h 20 min✦
February6°-1°80 mm15 km/h9 h 54 min✦
March10°1°70 mm14 km/h11 h 42 min✦✦
April14°4°54 mm12 km/h13 h 47 min✦✦✦
May18°8°68 mm12 km/h15 h 34 min✦✦✦✦
June21°11°76 mm11 km/h16 h 35 min✦✦✦
July23°13°111 mm11 km/h16 h 10 min✦✦✦
August23°12°101 mm11 km/h14 h 35 min✦✦✦
September18°9°80 mm11 km/h12 h 33 min✦✦✦
October14°6°78 mm13 km/h10 h 33 min✦✦
November9°3°89 mm13 km/h8 h 47 min✦
December6°1°103 mm14 km/h7 h 52 min✦

Questions Readers Ask about Iserlohn in December

Answered from the wire & the Almanac

What is the weather like in Iserlohn in December?

Days average 6 °C (42 °F) and nights 1 °C (33 °F), with about 103 mm (4.1 in) of rain over the month. Much like November: highs about 6°, nights near 1°. Pack the buffalo coat. Wet spells are common — about 103 mm, the 2nd wettest month. The first lasting snow usually comes now.

Is December a good time to visit Iserlohn?

The Almanac gives December 1 of 5 (travel with care). The best months are May and July.

How long are the days in Iserlohn in December?

In mid-December the sun is up for about 7 h 52 min. These are the shortest days of the year; the longest, in June, last 16 h 35 min.

Does it snow in Iserlohn in December?

Yes — snow usually lies on the ground in December.

What should I pack for Iserlohn in December?

A heavy coat, gloves, a hat and a scarf, plus a good raincoat — it is a wet month.

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The Editor’s Remark

“Weather is the only news that never grows stale. Each morning the sky writes its own front page, and we at Wanted Weather are but its telegraph operators.”— J. Whitmore, Editor