when is the best record by the tampa bay lightning in a month since 1985 but before before 2021

Between the 1984-85 and 2019-20 seasons, the Tampa Bay Lightning had their best record in a month in December 2018, with a record of 13-0-1.

	TEAM	REC	MONTH	PTS	GP	W	L	T	OTL	PTS%	SOW	SOL	G	GA	DIFF	PP%	PK%	S/GP	S%	SA/GP	SV%
1	Lightning	13-0-1	December 2018	27	14	13	0	0	1	.964	2	0	68	42	26	35.7	86.8	35.29	13.8	33.57	.911
2	Lightning	6-0-1-0	October 2003	13	7	6	0	1	0	.929	0	0	22	10	12	24.4	88.6	27.71	11.3	26.71	.947
3	Lightning	3-0-1	April 2015	7	4	3	0	0	1	.875	1	0	11	7	4	35.7	93.3	26.75	10.3	32.50	.946
4	Lightning	12-1-2	February 2019	26	15	12	1	0	2	.867	3	1	49	28	21	27.7	92.2	29.80	11.0	32.53	.943
5	Lightning	11-2-0	December 2017	22	13	11	2	0	0	.846	1	0	53	28	25	22.4	72.7	34.15	11.9	29.23	.926
6	Lightning	5-1-0	January 2013	10	6	5	1	0	0	.833	0	0	29	15	14	30.0	86.7	29.33	16.5	33.17	.925
7	Lightning	9-2-0	January 2016	18	11	9	2	0	0	.818	1	0	32	24	8	13.9	88.6	31.82	9.1	27.45	.921
8	Lightning	10-2-1	January 2020	21	13	10	2	0	1	.808	1	0	47	25	22	10.0	90.2	27.54	13.1	29.00	.934
9	Lightning	10-2-1	October 2017	21	13	10	2	0	1	.808	0	1	53	35	18	29.6	80.4	31.46	13.0	32.54	.917
10	Lightning	9-1-1-2	February 2004	21	13	9	1	1	2	.808	0	0	49	34	15	26.9	82.6	30.92	12.2	23.85	.890
11	Lightning	4-1-0	April 2011	8	5	4	1	0	0	.800	0	0	17	9	8	18.8	90.5	26.20	13.0	30.80	.942
12	Lightning	7-1-2-0	October 2002	16	10	7	1	2	0	.800	0	0	39	24	15	16.4	82.8	30.20	12.9	25.20	.905
13	Lightning	8-2-1	October 2018	17	11	8	2	0	1	.773	1	0	40	30	10	29.3	93.2	32.73	11.1	32.36	.916
14	Lightning	10-3-0	March 2019	20	13	10	3	0	0	.769	0	0	56	39	17	24.4	80.0	32.92	13.1	31.15	.904
15	Lightning	9-2-2	February 2007	20	13	9	2	0	2	.769	3	0	39	35	4	27.1	79.5	27.46	10.9	27.31	.901
16	Lightning	3-1-0	April 2019	6	4	3	1	0	0	.750	0	0	16	10	6	16.7	90.0	25.25	15.8	33.00	.924
17	Lightning	4-1-1	April 2017	9	6	4	1	0	1	.750	0	0	19	14	5	16.7	91.7	27.33	11.6	30.67	.924
18	Lightning	7-2-1	October 2010	15	10	7	2	0	1	.750	0	0	35	30	5	23.9	90.7	34.30	10.2	27.50	.891
19	Lightning	11-3-0-2	January 2004	24	16	11	3	0	2	.750	0	0	60	37	23	18.6	79.5	33.38	11.2	20.56	.888
20	Lightning	8-1-6-0	March 2003	22	15	8	1	6	0	.733	0	0	40	25	15	29.4	89.6	30.00	8.9	28.07	.941
21	Lightning	9-3-1	November 2014	19	13	9	3	0	1	.731	1	1	46	34	12	22.5	75.0	30.15	11.7	28.92	.910
22	Lightning	10-4-0	February 2020	20	14	10	4	0	0	.714	0	0	45	38	7	12.5	76.5	30.36	10.6	29.36	.908
23	Lightning	10-4-0	February 2016	20	14	10	4	0	0	.714	1	0	44	34	10	15.6	92.9	29.50	10.7	30.00	.919
24	Lightning	5-2-0	April 2014	10	7	5	2	0	0	.714	1	0	16	14	2	20.8	85.7	30.29	7.5	28.43	.930
25	Lightning	10-4-1	March 2017	21	15	10	4	0	1	.700	1	0	43	42	1	24.5	81.0	30.27	9.5	31.80	.912