Where in British Columbia is best for the aurora?

By geomagnetic latitude, Fort St. John at 61.7°. 1 towns sit at 60 degrees or more, where no storm is needed.

Which town in British Columbia has the longest December night?

Fort St. John, with 15.4 hours of civil night on December 15.

Which town in British Columbia has the clearest dark season?

Cranbrook, with 66% mean cloud amount in the months with at least 4 hours of civil night (NASA POWER, 2001 to 2020).

What is the best month for aurora in British Columbia?

September for 14 of 19 towns, by civil night times the clear share of the sky. Each town page gives its own month.

British Columbia aurora towns ranked: 28 places

Where the towns sit

60° geomagnetic or more, no storm needed55° to 60°, G1 or lessbelow 55°, storm needed

The widest gap in the dipole ranking falls between Fort St. John and Prince George, 2.5 degrees. 14 neighbouring pairs sit within 0.5 degrees of each other, close enough that the order between them means little.

Of the 19 indexed towns in British Columbia, 1 sit at 60 degrees geomagnetic or more, in or poleward of SWPC's 60 to 75 degree band, where no storm is needed; 9 sit between 55 and 60 degrees, where G1 (Kp 5) or less usually brings aurora into view; 9 sit below 55 degrees and need a G2 or stronger storm by NOAA's typical latitudes.

Ranked by geomagnetic latitude

Dipole latitude, highest first
Rank	Town	Value
1	Fort St. John	61.7°
2	Prince George	59.1°
3	Terrace	58.9°
4	Salmon Arm	56.5°
5	Kamloops	56.3°
6	Vernon	56.1°
7	Lake Country	55.8°
8	Cranbrook	55.8°
9	Kelowna	55.6°
10	Penticton	55.2°
11	Coquitlam	54.6°
12	Chilliwack	54.6°
13	Vancouver, British Columbia	54.5°
14	Abbotsford	54.5°
15	Surrey	54.4°
16	Delta	54.4°
17	Nanaimo	54.3°
18	Saanich	53.8°
19	Victoria	53.7°

Ranked by December darkness

On December 15 the median town gets 14.5 hours of civil night, against 14.2 nationally. Fort St. John has the most at 15.4 hours and Victoria the least at 14.3. Every town keeps some civil darkness through the June solstice.

Civil night on December 15, longest first
Rank	Town	Value
1	Fort St. John	15.4 h
2	Terrace	15.1 h
3	Prince George	15.0 h
4	Salmon Arm	14.6 h
5	Kamloops	14.6 h
6	Vernon	14.6 h
7	Lake Country	14.5 h
8	Cranbrook	14.5 h
9	Kelowna	14.5 h
10	Penticton	14.5 h
11	Coquitlam	14.4 h
12	Chilliwack	14.4 h
13	Vancouver, British Columbia	14.4 h
14	Abbotsford	14.4 h
15	Surrey	14.4 h
16	Delta	14.4 h
17	Nanaimo	14.4 h
18	Saanich	14.4 h
19	Victoria	14.3 h

Ranked by clear dark season

NASA POWER's 2001 to 2020 climatology puts median cloud amount in the dark months at 71%, against 67% nationally. Cranbrook is clearest at 66% and Terrace cloudiest at 79%. These are all-hours averages for 1 degree cells, not forecasts.

Mean cloud amount in months with 4 hours or more of civil night, clearest first
Rank	Town	Value
1	Cranbrook	66%
2	Kelowna	66%
3	Penticton	66%
4	Kamloops	67%
5	Fort St. John	67%
6	Saanich	68%
7	Victoria	68%
8	Chilliwack	69%
9	Coquitlam	71%
10	Vancouver, British Columbia	71%
11	Abbotsford	71%
12	Surrey	71%
13	Delta	71%
14	Nanaimo	71%
15	Prince George	71%
16	Salmon Arm	71%
17	Vernon	71%
18	Lake Country	71%
19	Terrace	79%

Multiplying civil night by the clear share of the sky, September comes out best for 14 of the 19 towns and February for 2. SWPC notes a tendency toward larger storms near the equinoxes, which this score does not include.

Every town

28 towns in British Columbia
Town	Dipole	Storm needed	Dec 15 night	Dark-month cloud	Best month
Fort St. John	61.7°	none	15.4 h	67%	Dec
Prince George	59.1°	G1 or less	15.0 h	71%	Feb
Terrace	58.9°	G1 or less	15.1 h	79%	Feb
Salmon Arm	56.5°	G1 or less	14.6 h	71%	Sep
Kamloops	56.3°	G1 or less	14.6 h	67%	Sep
Vernon	56.1°	G1 or less	14.6 h	71%	Sep
Lake Country	55.8°	G1 or less	14.5 h	71%	Aug
Cranbrook	55.8°	G1 or less	14.5 h	66%	Sep
Kelowna	55.6°	G1 or less	14.5 h	66%	Sep
West Kelowna *	55.6°	G1 or less	14.5 h	66%	Sep
Penticton	55.2°	G1 or less	14.5 h	66%	Sep
Coquitlam	54.6°	G2 or more	14.4 h	71%	Sep
Chilliwack	54.6°	G2 or more	14.4 h	69%	Aug
North Vancouver *	54.6°	G2 or more	14.4 h	71%	Sep
Port Coquitlam *	54.6°	G2 or more	14.4 h	71%	Sep
Maple Ridge *	54.6°	G2 or more	14.4 h	71%	Sep
Burnaby *	54.6°	G2 or more	14.4 h	71%	Sep
Vancouver, British Columbia	54.5°	G2 or more	14.4 h	71%	Sep
New Westminster *	54.5°	G2 or more	14.4 h	71%	Sep
Fleetwood, British Columbia *	54.5°	G2 or more	14.4 h	71%	Sep
Abbotsford	54.5°	G2 or more	14.4 h	71%	Sep
Richmond *	54.5°	G2 or more	14.4 h	71%	Sep
Langley *	54.5°	G2 or more	14.4 h	71%	Sep
Surrey	54.4°	G2 or more	14.4 h	71%	Sep
Delta	54.4°	G2 or more	14.4 h	71%	Sep
Nanaimo	54.3°	G2 or more	14.4 h	71%	Sep
Saanich	53.8°	G2 or more	14.4 h	68%	Sep
Victoria	53.7°	G2 or more	14.3 h	68%	Sep

* Within 15 km of a larger town with the same rounded figures; its page points to that town. Cloud: NASA POWER mean for months with at least 4 hours of civil night.

Questions

Where in British Columbia is best for the aurora?: By geomagnetic latitude, Fort St. John at 61.7°. 1 towns sit at 60 degrees or more, where no storm is needed.
Which town in British Columbia has the longest December night?: Fort St. John, with 15.4 hours of civil night on December 15.
Which town in British Columbia has the clearest dark season?: Cranbrook, with 66% mean cloud amount in the months with at least 4 hours of civil night (NASA POWER, 2001 to 2020).
What is the best month for aurora in British Columbia?: September for 14 of 19 towns, by civil night times the clear share of the sky. Each town page gives its own month.

Top towns in British Columbia

Other regions of Canada

More

Sources and verification

GeoNames dump (CC BY 4.0)https://download.geonames.org/export/dump/
IGRF-14, NOAA NCEIhttps://www.ngdc.noaa.gov/IAGA/vmod/coeffs/igrf14coeffs.txt
NASA POWER climatologyhttps://power.larc.nasa.gov/docs/services/api/temporal/climatology/

Quoted figures last checked against their sources on 2026-09-30; next review 2026-12-31. Computed figures come from SunCalc and the IGRF-14 dipole as described in the methodology. Every quote is listed in the sources ledger.