North Chicopee · December 2026
Northern lights in North Chicopee in December 2026
Answer
December against the rest of the year
December cloud at North Chicopee averages 68% in NASA POWER's 2001 to 2020 record, 7 points cloudier than its yearly mean. September is North Chicopee's clearest month at 51%. By civil night times clear sky, December scores 4.4 hours at North Chicopee, 6th of 12. Portland, Maine, 251 km away, averages 66%, clearer by 2 points.
Civil night at North Chicopee starts December at 13 h 33 min and reaches 13 h 42 min by December 31 as the nights lengthen by 0.1 hours. SWPC's 10 PM to 2 AM window is fully dark on every night. True astronomical darkness, the sun 18 degrees down, lasts 11.4 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/New_York dates. North Chicopee gets 228 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 3 (4 h), Dec 4 (4 h), Dec 5 (4 h).
- 1
40% lit
7.7 h
- 2
30% lit
8.8 h
- 3
21% lit
9.9 h
- 4
14% lit
11.0 h
- 5
8% lit
12.1 h
- 6
3% lit
13.2 h
- 7
1% lit
13.7 h
- 8
0% lit
13.7 h
- 9
1% lit
13.7 h
- 10
4% lit
13.2 h
- 11
9% lit
12.2 h
- 12
15% lit
11.1 h
- 13
22% lit
10.1 h
- 14
31% lit
9.0 h
- 15
40% lit
8.0 h
- 16
50% lit
6.9 h
- 17
60% lit
5.8 h
- 18
70% lit
4.7 h
- 19
80% lit
3.5 h
- 20
88% lit
2.1 h
- 21
95% lit
0.8 h
- 22
99% lit
0.0 h
- 23
100% lit
0.0 h
- 24
98% lit
0.1 h
- 25
93% lit
1.5 h
- 26
86% lit
2.8 h
- 27
77% lit
4.1 h
- 28
67% lit
5.3 h
- 29
56% lit
6.5 h
- 30
46% lit
7.6 h
- 31
36% lit
8.7 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
North Chicopee needs Kp 8 for the average oval edge to sit overhead. 1 of the 930 December days from 1996 to 2025 (0%) 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%. North Chicopee sits at 51.4 degrees geomagnetic. The lowest NOAA storm level whose typical viewing latitude reaches it is G3 (Kp = 7). By SWPC's rule the average oval edge is overhead only at Kp 8.
December across United States
North Chicopee ranks 11th in United States for civil night on December 15, behind Fairbanks at 17.2 hours. Coming from November (13.1 hours at North Chicopee), December adds darkness, and January brings shorter nights (13.4 hours on the 15th). The December solstice falls on December 21, 15:49 North Chicopee time.
| Town | Civil night | Cloud |
|---|---|---|
| Fairbanks | 17.2 h | 59% |
| Anchorage | 16.3 h | 72% |
| Eagle River | 16.3 h | 72% |
| Juneau | 15.7 h | 80% |
| Seattle | 14.3 h | 79% |
| Duluth | 14.2 h | 71% |
| Fargo | 14.2 h | 68% |
| Minneapolis | 14.0 h | 69% |
| Portland, Maine | 13.9 h | 66% |
| Buffalo | 13.8 h | 85% |
| North Chicopee | 13.7 h | 68% |
Darkness and moon, every night
| Night | Civil | Astronomical | Moon-free dark | Moon-free, 10 PM to 2 AM | Moon lit |
|---|---|---|---|---|---|
| Tue Dec 1 | 13 h 33 min | 11 h 16 min | 7 h 39 min | 2 h 32 min | 40% |
| Wed Dec 2 | 13 h 34 min | 11 h 17 min | 8 h 46 min | 3 h 40 min | 30% |
| Thu Dec 3 | 13 h 35 min | 11 h 18 min | 9 h 53 min | 4 h | 21% |
| Fri Dec 4 | 13 h 36 min | 11 h 19 min | 11 h | 4 h | 14% |
| Sat Dec 5 | 13 h 37 min | 11 h 20 min | 12 h 6 min | 4 h | 8% |
| Sun Dec 6 | 13 h 38 min | 11 h 21 min | 13 h 11 min | 4 h | 3% |
| Mon Dec 7 | 13 h 39 min | 11 h 21 min | 13 h 39 min | 4 h | 1% |
| Tue Dec 8 | 13 h 40 min | 11 h 22 min | 13 h 40 min | 4 h | 0% |
| Wed Dec 9 | 13 h 41 min | 11 h 23 min | 13 h 41 min | 4 h | 1% |
| Thu Dec 10 | 13 h 41 min | 11 h 23 min | 13 h 11 min | 4 h | 4% |
| Fri Dec 11 | 13 h 42 min | 11 h 24 min | 12 h 10 min | 4 h | 9% |
| Sat Dec 12 | 13 h 43 min | 11 h 24 min | 11 h 8 min | 4 h | 15% |
| Sun Dec 13 | 13 h 43 min | 11 h 25 min | 10 h 5 min | 4 h | 22% |
| Mon Dec 14 | 13 h 44 min | 11 h 25 min | 9 h 2 min | 4 h | 31% |
| Tue Dec 15 | 13 h 44 min | 11 h 26 min | 8 h | 3 h 22 min | 40% |
| Wed Dec 16 | 13 h 44 min | 11 h 26 min | 6 h 56 min | 2 h 17 min | 50% |
| Thu Dec 17 | 13 h 45 min | 11 h 26 min | 5 h 50 min | 1 h 11 min | 60% |
| Fri Dec 18 | 13 h 45 min | 11 h 26 min | 4 h 41 min | 1 min | 70% |
| Sat Dec 19 | 13 h 45 min | 11 h 26 min | 3 h 27 min | 0 min | 80% |
| Sun Dec 20 | 13 h 45 min | 11 h 27 min | 2 h 9 min | 0 min | 88% |
| Mon Dec 21 | 13 h 45 min | 11 h 27 min | 51 min | 0 min | 95% |
| Tue Dec 22 | 13 h 45 min | 11 h 26 min | 0 min | 0 min | 99% |
| Wed Dec 23 | 13 h 45 min | 11 h 26 min | 0 min | 0 min | 100% |
| Thu Dec 24 | 13 h 45 min | 11 h 26 min | 8 min | 0 min | 98% |
| Fri Dec 25 | 13 h 45 min | 11 h 26 min | 1 h 30 min | 0 min | 93% |
| Sat Dec 26 | 13 h 44 min | 11 h 26 min | 2 h 50 min | 0 min | 86% |
| Sun Dec 27 | 13 h 44 min | 11 h 25 min | 4 h 7 min | 0 min | 77% |
| Mon Dec 28 | 13 h 43 min | 11 h 25 min | 5 h 20 min | 20 min | 67% |
| Tue Dec 29 | 13 h 43 min | 11 h 25 min | 6 h 29 min | 1 h 30 min | 56% |
| Wed Dec 30 | 13 h 42 min | 11 h 24 min | 7 h 36 min | 2 h 38 min | 46% |
| Thu Dec 31 | 13 h 42 min | 11 h 24 min | 8 h 42 min | 3 h 45 min | 36% |
Questions
- Can you see the northern lights in North Chicopee in December?
- On dark, clear nights with enough activity. 31 of 31 nights at North Chicopee have civil darkness, and 0% of past December days reached Kp 8.
- How dark is North Chicopee in December?
- North Chicopee averages 13.7 hours of civil night a night in December 2026, from 13 h 33 min on the 1st to 13 h 42 min on the last night.
- How cloudy is North Chicopee in December?
- NASA POWER's 2001 to 2020 climatology gives North Chicopee's 1 degree cell 68% mean cloud in December, against 61% for the whole year. It is an all-hours average, not a forecast.
- What is the best night in December 2026 for aurora in North Chicopee?
- By darkness and moon alone, Dec 3, with 4 h of moon-free darkness inside 10 PM to 2 AM at North Chicopee. Activity on that date will only be known hours ahead.
- Is December or January better in North Chicopee?
- By civil night times the clear share, December scores 4.4 hours at North Chicopee and January 4.7. January comes out ahead.
Sources and verification
- SunCalchttps://github.com/mourner/suncalc
- NASA POWER climatologyhttps://power.larc.nasa.gov/docs/services/api/temporal/climatology/
- GFZ Potsdam Kp indexhttps://kp.gfz.de/en/data
- NOAA SWPC, Tips on viewing the aurorahttps://www.spaceweather.gov/content/tips-viewing-aurora
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.