SHORT-TERM BORROWINGS

Short-term borrowings, which Heartland defines as borrowings with an original maturity of one year or less, as of December 31, 2016, and 2015, were as follows, in thousands:



	2016		2015
Securities sold under agreement to repurchase	$	229,555	$	253,673
Federal funds purchased	40,200		14,125
Advances from the FHLB	30,367		11,100
Notes payable to unaffiliated banks	—		15,000
Other short-term borrowings	$	6,337	$	—
Total	$	306,459	$	293,898

At both December 31, 2016, and December 31, 2015, Heartland had one revolving credit line with an unaffiliated bank with borrowing capacity of $20.0 million. A balance of $0 and $15.0 million was outstanding at December 31, 2016 and 2015, respectively. In addition to the revolving credit line described above, Heartland entered into another non-revolving credit facility with the same unaffiliated bank on December 15, 2015, which provided a borrowing capacity not to exceed $50.0 million when combined with the outstanding balance on the amortizing term loan discussed in Note 11. On July 20, 2016, the borrowing capacity on this non-revolving credit facility was increased by $25.0 million. The credit facility is non-revolving at a rate of 2.75% over LIBOR, and any outstanding balance is due on June 14, 2017. There was no outstanding balance on the short-term portion of the credit facility at December 31, 2016, and Heartland had $47.1 million of borrowing capacity.

The agreement with the unaffiliated bank for the credit facility contains specific financial covenants, all of which Heartland was in compliance with at December 31, 2016 and December 31, 2015.

All retail repurchase agreements as of December 31, 2016 and 2015 were due within twelve months.

Average and maximum balances and rates on aggregate short-term borrowings outstanding during the years ended December 31, 2016, December 31, 2015, and December 31, 2014, were as follows, in thousands:



	2016			2015			2014
Maximum month-end balance	$	399,490		$	477,918		$	420,494
Average month-end balance	287,857			330,134			307,470
Weighted average interest rate for the year	0.40		%	0.25		%	0.28		%
Weighted average interest rate at year-end	0.29		%	0.15		%	0.19		%

Dubuque Bank and Trust Company and Morrill & Janes Bank and Trust Company are participants in the Borrower-In-Custody of Collateral Program at the Federal Reserve Bank of Chicago and the Federal Reserve Bank of Kansas City, respectively, which provides the capability to borrow short-term funds under the Discount Window Program. Advances under this program are collateralized by a portion of the commercial loan portfolio of Dubuque Bank and Trust Company in the amount of $91.1 million at December 31, 2016, and $52.0 million at December 31, 2015. Advances collateralized by a portion of Morrill & Janes Bank and Trust Company's commercial loan portfolio were $43.7 million at December 31, 2016, and $31.2 million at December 31, 2015. There were no borrowings under the Discount Window Program outstanding at year-end 2016 and 2015.