NOTES PAYABLE AND CREDIT AGREEMENTS (Tables)

12 Months Ended

Sep. 30, 2018

Short-term Debt [Line Items]

Short-term borrowings

Information about Spire’s consolidated short-term borrowings is presented in the following table.

	Commercial Paper Borrowings	Revolving Credit Facility Borrowings	Total Short‑term Borrowings
Year Ended September 30, 2018
Weighted average borrowings outstanding	$408.5	$0.1	$408.6
Weighted average interest rate	2.0%	2.8%	2.0%
Range of borrowings outstanding	$146.0 - $632.9	$0.0 - $25.0	$146.0 - $632.9
As of September 30, 2018
Borrowings outstanding	$553.6	$—	$553.6
Weighted average interest rate	2.4%	—%	2.4%
As of September 30, 2017
Borrowings outstanding	$477.3	$—	$477.3
Weighted average interest rate	1.5%	—%	1.5%

From the total short-term borrowings as of September 30, 2018, Spire used $540.5 to provide funding to the Utilities and Spire Storage. Information about Spire Missouri’s and Spire Alabama’s borrowings from Spire is presented in the following table.

	Spire Missouri	Spire Alabama
Year Ended September 30, 2018
Weighted average borrowings outstanding	$210.5	$103.9
Weighted average interest rate	2.1%	2.0%
Range of borrowings outstanding	$101.5 - $345.3	$33.6 - $188.6
As of September 30, 2018
Borrowings outstanding	$345.3	$142.5
Weighted average interest rate	2.3%	2.3%
As of September 30, 2017
Borrowings outstanding	$203.0	$169.9
Weighted average interest rate	1.5%	1.5%