It wouldn’t be a monthly challenge if it wasn’t followed by a loads of stats:
Days = 31
Runs = 31
Treadmill Runs = 14
Outside Runs = 17
Shortest Run = 2 miles
Longest Run = 4.32 miles
Average Daily Run = 3.23 miles
Total Mileage = 100.18 miles

Just for general wonderings…
It wouldn’t be a monthly challenge if it wasn’t followed by a loads of stats:
Days = 31
Runs = 31
Treadmill Runs = 14
Outside Runs = 17
Shortest Run = 2 miles
Longest Run = 4.32 miles
Average Daily Run = 3.23 miles
Total Mileage = 100.18 miles

The last day of the month. The 31st run.
Trail run: 3.6 miles

Done.
And relax.