12.6 usable nights
10–15 in the middle half of years · 4.3 typically near a dark moon.
341 astronomical-dark hours in an average month
20-year trip-planning baseline
Best time to stargaze at Bullhead City
June: 22.1 usable nights on average. Use this seasonal climate baseline to choose a month, then use the live forecast to choose a night.
Site darkness · modelled, not measured
Bright skyBortle classes describe observed sky conditions; this brightness model does not establish a measured Bortle class.19.7–20.4 mag/arcsec²
The short answer
June has been strongest.
It averages 22.1 usable nights, versus 12.0 in February. A typical June lands between 21 and 25 usable nights.
Record2005–2024 · 20 complete years
Usable nightAt least 3 astronomical-dark hours and NASA POWER nighttime cloud ≤30%
Dark-moon nightUsable night with ≤25% illumination at local solar midnight
ResolutionCERES SYN1deg 1° cloud grid; regional climate, not a campsite guarantee
Seasonal fingerprint
Usable nights by month
Month by month
12.0 usable nights
8–16 in the middle half of years · 3.7 typically near a dark moon.
288 astronomical-dark hours in an average month
12.8 usable nights
10–16 in the middle half of years · 3.7 typically near a dark moon.
285 astronomical-dark hours in an average month
16.5 usable nights
14–19 in the middle half of years · 5.2 typically near a dark moon.
240 astronomical-dark hours in an average month
19.9 usable nights
18–22 in the middle half of years · 6.8 typically near a dark moon.
199 astronomical-dark hours in an average month
22.1 usable nights
21–25 in the middle half of years · 7.3 typically near a dark moon.
180 astronomical-dark hours in an average month
13.7 usable nights
11–17 in the middle half of years · 4.5 typically near a dark moon.
187 astronomical-dark hours in an average month
15.4 usable nights
12–18 in the middle half of years · 4.3 typically near a dark moon.
239 astronomical-dark hours in an average month
21.9 usable nights
20–23 in the middle half of years · 8.1 typically near a dark moon.
254 astronomical-dark hours in an average month
21.6 usable nights
19–25 in the middle half of years · 7.6 typically near a dark moon.
310 astronomical-dark hours in an average month
16.6 usable nights
15–19 in the middle half of years · 5.6 typically near a dark moon.
327 astronomical-dark hours in an average month
12.1 usable nights
9–15 in the middle half of years · 4.0 typically near a dark moon.
359 astronomical-dark hours in an average month
Use the baseline honestly
Climate chooses the month. Forecasts choose the night.
The cloud product is a roughly 1° regional grid. It can reveal seasonality, but it cannot know a mountain ridge, valley fog pocket, locked gate, smoke event or the exact sky you will get.
Source: NASA POWER daily data, parameter CLOUD_AMT_NIGHT from the CERES SYN1deg cloud product. GoodSeeing calculates astronomical darkness and lunar illumination independently for each place.