when was bitcoin under 100 dollars for the last time

The last time Bitcoin (BTC) closed below $100 was on July 28, 2013, having a price of $99.76. It was up 5.7% for the day. The latest price is $92,746.66.

DATE OPEN HIGH LOW CLOSE
September 10 2013
$127.27
$129.74
$125.90
$125.91
September 09 2013
$121.86
$129.06
$119.75
$127.11
September 08 2013
$124.13
$124.72
$120.49
$121.66
September 07 2013
$118.89
$125.94
$118.46
$124.15
September 06 2013
$126.49
$127.34
$119.15
$119.15
September 05 2013
$126.76
$131.44
$121.83
$126.43
September 04 2013
$136.53
$144.50
$123.61
$126.74
September 03 2013
$135.61
$138.34
$133.00
$136.77
September 02 2013
$138.63
$146.50
$134.89
$135.85
September 01 2013
$135.14
$145.81
$134.81
$138.34
August 31 2013
$133.09
$140.89
$132.72
$135.35
August 30 2013
$122.35
$135.75
$120.99
$133.49
August 29 2013
$122.62
$123.70
$122.21
$122.39
August 28 2013
$126.48
$127.32
$122.62
$122.62
August 27 2013
$120.07
$127.24
$120.07
$126.50
August 26 2013
$122.11
$122.76
$119.93
$120.06
August 25 2013
$119.60
$122.99
$119.17
$122.11
August 24 2013
$118.51
$121.39
$118.02
$120.05
August 23 2013
$122.00
$122.00
$118.44
$118.50
August 22 2013
$123.30
$123.50
$120.60
$121.15
August 21 2013
$121.21
$124.91
$119.68
$123.30
August 20 2013
$119.00
$123.01
$117.51
$121.21
August 19 2013
$113.38
$123.06
$111.77
$119.00
August 18 2013
$112.75
$114.69
$112.00
$113.50
August 17 2013
$108.99
$113.75
$108.23
$113.50
Daily pricing data for Bitcoin dates back to 7/17/2010, and may be incomplete.