Sion Weather in December
Sion in December
The short of it: Sion in December averages a high of 0 °C (32 °F) and a low of -5 °C (22 °F), with 53 mm (2.1 in) of rain and about 8 h 15 min of daylight. Rated 1 of 5 for a visit; the best months are September and April. Source: TerraClimate climate normals, 1991–2020.
Average high 0° · low -5° · rain 53 mm · daylight 8 h 15 min
✦ Travel with care for a visit · best months: September & April
December in Sion brings afternoons near 0° and nights around -5°, with about 53 mm of rain over the month. The year turns hard here: highs drop 6° from November to about 0°, with nights near -5°. Rain is modest, about 53 mm, the 2nd wettest month. Snow lies on the ground; mind the passes.
The sun is up for about 8 h 15 min in mid-December, 49 minutes less than a month before.
For the traveller: pack a heavy coat, gloves and a scarf. The Almanac rates December 1 of 5 for a visit; the finest months here are September and April.
Against its neighbours, Sion runs warmer than most and wetter than most in December. Grand Forks, 4 km to the ENE, sees much the same highs.
December in Sion, by the numbers
- Warmth rank
- 11th warmest of 12
- Rain rank
- 2nd wettest of 12
- Versus November
- 6° colder, 4.0 mm more rain
- Versus January
- about the same
- Day–night spread
- 6°
- Snow season
- Nov–Mar
- Daylight, mid-month
- 8 h 15 min
- Average wind
- 8 km/h
Neighbouring Towns
December averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Grand ForksBritish Columbia | 4 km ENE | 0° | -5° | 53 mm |
| GreenwoodBritish Columbia | 17 km WNW | -1° | -7° | 51 mm |
| MidwayBritish Columbia | 20 km W | -1° | -7° | 48 mm |
| Christina LakeBritish Columbia | 21 km E | 1° | -4° | 57 mm |
| RepublicWashington | 45 km SSW | -1° | -8° | 45 mm |
| RosslandBritish Columbia | 51 km E | -1° | -6° | 82 mm |
| WarfieldBritish Columbia | 55 km E | 1° | -4° | 72 mm |
| Kettle FallsWashington | 55 km SE | 2° | -4° | 57 mm |