9.2 usable nights
7–11 in the middle half of years · 3.2 typically near a dark moon.
340 astronomical-dark hours in an average month
October: 15.3 usable nights on average. Use this seasonal climate baseline to choose a month, then use the live forecast to choose a night.
It averages 15.3 usable nights, versus 6.4 in May. A typical October lands between 10 and 20 usable nights.
7–11 in the middle half of years · 3.2 typically near a dark moon.
340 astronomical-dark hours in an average month
5–10 in the middle half of years · 2.4 typically near a dark moon.
283 astronomical-dark hours in an average month
5–8 in the middle half of years · 2.6 typically near a dark moon.
296 astronomical-dark hours in an average month
6–9 in the middle half of years · 2.9 typically near a dark moon.
240 astronomical-dark hours in an average month
4–10 in the middle half of years · 2.0 typically near a dark moon.
238 astronomical-dark hours in an average month
7–14 in the middle half of years · 3.1 typically near a dark moon.
180 astronomical-dark hours in an average month
9–16 in the middle half of years · 4.5 typically near a dark moon.
218 astronomical-dark hours in an average month
11–18 in the middle half of years · 5.2 typically near a dark moon.
248 astronomical-dark hours in an average month
12–17 in the middle half of years · 5.2 typically near a dark moon.
265 astronomical-dark hours in an average month
10–20 in the middle half of years · 5.7 typically near a dark moon.
310 astronomical-dark hours in an average month
7–13 in the middle half of years · 3.3 typically near a dark moon.
322 astronomical-dark hours in an average month
6–11 in the middle half of years · 3.0 typically near a dark moon.
332 astronomical-dark hours in an average month
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.