10.2 usable nights
9–12 in the middle half of years · 3.5 typically near a dark moon.
344 astronomical-dark hours in an average month
20-year trip-planning baseline
Best time to stargaze at Ponca City
October: 13.7 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
Brightened skyBortle classes describe observed sky conditions; this brightness model does not establish a measured Bortle class.20.2–20.8 mag/arcsec²
The short answer
October has been strongest.
It averages 13.7 usable nights, versus 6.5 in February. A typical October lands between 12 and 17 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
6.5 usable nights
5–8 in the middle half of years · 2.0 typically near a dark moon.
289 astronomical-dark hours in an average month
7.4 usable nights
6–9 in the middle half of years · 2.1 typically near a dark moon.
283 astronomical-dark hours in an average month
7.2 usable nights
5–9 in the middle half of years · 2.3 typically near a dark moon.
240 astronomical-dark hours in an average month
6.9 usable nights
5–9 in the middle half of years · 2.6 typically near a dark moon.
190 astronomical-dark hours in an average month
8.7 usable nights
7–11 in the middle half of years · 2.8 typically near a dark moon.
180 astronomical-dark hours in an average month
11.8 usable nights
10–14 in the middle half of years · 4.1 typically near a dark moon.
186 astronomical-dark hours in an average month
12.4 usable nights
11–16 in the middle half of years · 4.7 typically near a dark moon.
231 astronomical-dark hours in an average month
13.4 usable nights
11–16 in the middle half of years · 5.0 typically near a dark moon.
252 astronomical-dark hours in an average month
13.7 usable nights
12–17 in the middle half of years · 4.8 typically near a dark moon.
309 astronomical-dark hours in an average month
12.3 usable nights
11–14 in the middle half of years · 4.1 typically near a dark moon.
328 astronomical-dark hours in an average month
8.4 usable nights
6–10 in the middle half of years · 2.7 typically near a dark moon.
362 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.