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Lutes Mountain · December 2026

Northern lights in Lutes Mountain in December 2026

Answer

December gives Lutes Mountain 14.1 hours of civil night on the 15th, the darkest month of its year, under 73% mean cloud. 1% of December days since 1996 reached Kp 6, enough for the oval edge to reach Lutes Mountain.
14.1 h
civil night, average night
SunCalc for 46.15, -64.91; NASA POWER; GFZ Kp

December against the rest of the year

December cloud at Lutes Mountain averages 73% in NASA POWER's 2001 to 2020 record, 6 points cloudier than its yearly mean. September is Lutes Mountain's clearest month at 55%. By civil night times clear sky, December scores 3.8 hours at Lutes Mountain, 4th of 12. Sydney, 364 km away, averages 89%, cloudier by 16 points.

Civil night at Lutes Mountain starts December at 13 h 53 min and reaches 14 h 3 min by December 31 as the nights lengthen by 0.2 hours. SWPC's 10 PM to 2 AM window is fully dark on every night. True astronomical darkness, the sun 18 degrees down, lasts 11.6 hours on the 15th.

December night by night

December opens toward a new moon on Dec 8, with full moon on Dec 23, in America/Moncton dates. Lutes Mountain gets 234 hours of civil night with the moon below the horizon across the month. The best of them for moon-free darkness inside 10 PM to 2 AM: Dec 2 (4 h), Dec 3 (4 h), Dec 4 (4 h).

  1. 1

    40% lit

    7.8 h

  2. 2

    30% lit

    9.0 h

  3. 3

    21% lit

    10.2 h

  4. 4

    14% lit

    11.3 h

  5. 5

    8% lit

    12.5 h

  6. 6

    3% lit

    13.6 h

  7. 7

    1% lit

    14.0 h

  8. 8

    0% lit

    14.0 h

  9. 9

    1% lit

    14.0 h

  10. 10

    4% lit

    13.7 h

  11. 11

    9% lit

    12.7 h

  12. 12

    15% lit

    11.6 h

  13. 13

    22% lit

    10.5 h

  14. 14

    30% lit

    9.3 h

  15. 15

    39% lit

    8.3 h

  16. 16

    49% lit

    7.1 h

  17. 17

    60% lit

    6.0 h

  18. 18

    70% lit

    4.8 h

  19. 19

    79% lit

    3.5 h

  20. 20

    88% lit

    2.1 h

  21. 21

    94% lit

    0.8 h

  22. 22

    99% lit

    0.0 h

  23. 23

    100% lit

    0.0 h

  24. 24

    98% lit

    0.0 h

  25. 25

    93% lit

    1.4 h

  26. 26

    86% lit

    2.8 h

  27. 27

    77% lit

    4.2 h

  28. 28

    67% lit

    5.5 h

  29. 29

    57% lit

    6.7 h

  30. 30

    46% lit

    7.8 h

  31. 31

    36% lit

    9.0 h

Each cell is the night that starts on that date. Hours are civil-dark time with the moon below the horizon; the green rule scales with them. Green outline: new moon. Bone outline: full moon.

Activity in past Decembers

Lutes Mountain needs Kp 6 for the average oval edge to sit overhead. 11 of the 930 December days from 1996 to 2025 (1%) reached it in the GFZ Potsdam record, one of the three quietest months for that level; storm days with Kp 5 or more made up 5%. Lutes Mountain sits at 55.3 degrees geomagnetic. By SWPC's rule the average oval edge is overhead at Kp 6, and aurora is usually visible on the northern horizon at G1 (Kp 5) or less.

December across Canada

Lutes Mountain ranks 21st in Canada for civil night on December 15, behind Yellowknife at 16.6 hours. Coming from November (13.4 hours at Lutes Mountain), December adds darkness, and January brings shorter nights (13.7 hours on the 15th). The December solstice falls on December 21, 16:49 Lutes Mountain time.

Civil night on December 15 and December cloud, month-page towns in Canada
TownCivil nightCloud
Yellowknife16.6 h58%
Whitehorse16.2 h68%
Fort McMurray15.4 h69%
Fort St. John15.4 h69%
Grande Prairie15.2 h71%
Edmonton15.0 h72%
Prince Albert14.9 h70%
Lloydminster14.9 h71%
Saskatoon14.8 h70%
Red Deer14.8 h74%
Calgary14.6 h68%
Regina14.6 h72%
Lutes Mountain14.1 h73%

Darkness and moon, every night

Lutes Mountain, December 2026: each night from local noon to the next noon
NightCivilAstronomicalMoon-free darkMoon-free, 10 PM to 2 AMMoon lit
Tue Dec 113 h 53 min11 h 26 min7 h 47 min3 h40%
Wed Dec 213 h 54 min11 h 27 min8 h 58 min4 h30%
Thu Dec 313 h 56 min11 h 29 min10 h 9 min4 h21%
Fri Dec 413 h 57 min11 h 30 min11 h 19 min4 h14%
Sat Dec 513 h 58 min11 h 31 min12 h 29 min4 h8%
Sun Dec 613 h 59 min11 h 32 min13 h 37 min4 h3%
Mon Dec 714 h11 h 32 min14 h4 h1%
Tue Dec 814 h 1 min11 h 33 min14 h 1 min4 h0%
Wed Dec 914 h 2 min11 h 34 min14 h 2 min4 h1%
Thu Dec 1014 h 3 min11 h 35 min13 h 41 min4 h4%
Fri Dec 1114 h 4 min11 h 35 min12 h 39 min4 h9%
Sat Dec 1214 h 4 min11 h 36 min11 h 34 min4 h15%
Sun Dec 1314 h 5 min11 h 37 min10 h 28 min4 h22%
Mon Dec 1414 h 6 min11 h 37 min9 h 21 min4 h30%
Tue Dec 1514 h 6 min11 h 37 min8 h 15 min2 h 57 min39%
Wed Dec 1614 h 6 min11 h 38 min7 h 8 min1 h 50 min49%
Thu Dec 1714 h 7 min11 h 38 min5 h 59 min40 min60%
Fri Dec 1814 h 7 min11 h 38 min4 h 46 min0 min70%
Sat Dec 1914 h 7 min11 h 38 min3 h 29 min0 min79%
Sun Dec 2014 h 7 min11 h 38 min2 h 7 min0 min88%
Mon Dec 2114 h 7 min11 h 38 min46 min0 min94%
Tue Dec 2214 h 7 min11 h 38 min0 min0 min99%
Wed Dec 2314 h 7 min11 h 38 min0 min0 min100%
Thu Dec 2414 h 7 min11 h 38 min0 min0 min98%
Fri Dec 2514 h 7 min11 h 38 min1 h 25 min0 min93%
Sat Dec 2614 h 6 min11 h 38 min2 h 50 min0 min86%
Sun Dec 2714 h 6 min11 h 37 min4 h 11 min0 min77%
Mon Dec 2814 h 5 min11 h 37 min5 h 27 min46 min67%
Tue Dec 2914 h 5 min11 h 36 min6 h 40 min2 h57%
Wed Dec 3014 h 4 min11 h 36 min7 h 51 min3 h 12 min46%
Thu Dec 3114 h 3 min11 h 35 min9 h 1 min4 h36%
Moon lit: SunCalc illuminated fraction at the middle of the 10 PM to 2 AM window.

Questions

Can you see the northern lights in Lutes Mountain in December?
On dark, clear nights with enough activity. 31 of 31 nights at Lutes Mountain have civil darkness, and 1% of past December days reached Kp 6.
How dark is Lutes Mountain in December?
Lutes Mountain averages 14.1 hours of civil night a night in December 2026, from 13 h 53 min on the 1st to 14 h 3 min on the last night.
How cloudy is Lutes Mountain in December?
NASA POWER's 2001 to 2020 climatology gives Lutes Mountain's 1 degree cell 73% mean cloud in December, against 67% for the whole year. It is an all-hours average, not a forecast.
What is the best night in December 2026 for aurora in Lutes Mountain?
By darkness and moon alone, Dec 2, with 4 h of moon-free darkness inside 10 PM to 2 AM at Lutes Mountain. Activity on that date will only be known hours ahead.
Is December or January better in Lutes Mountain?
By civil night times the clear share, December scores 3.8 hours at Lutes Mountain and January 4.2. January comes out ahead.

Sources and verification

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.