Slidell Weather in 2021

Historical record of Slidell, Louisiana weather for the year 2021 based on NOAA data.

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2021 Slidell Weather Extremes
Highest temperature	97 °F	August 30
Lowest temperature	22 °F	February 16
Highest daily low	79 °F	August 24
Lowest daily high	37 °F	February 17
Most daily precipitation	10.0 inches	August 30
Total annual precipitation	102.6 inches	-

What was the hottest temperature in Slidell in 2021?

The highest temperature recorded in Slidell, Louisiana in 2021 was 97 °F which happened on August 30.

Highest Temperatures: All-Time By Year

Highest Temperatures in Slidell in 2021

Rank	Temperature	Date
1	97 °F	Aug 30
2	95 °F	Aug 25
3	94 °F	Aug 24
4	93 °F	Aug 23
4	93 °F	Jul 31
4	93 °F	Jul 25
4	93 °F	Jun 16
4	93 °F	Jun 14
9	92 °F	Aug 22
9	92 °F	Aug 21
9	92 °F	Aug 11
9	92 °F	Aug 9
9	92 °F	Aug 2
9	92 °F	Jul 24
9	92 °F	Jul 23
9	92 °F	Jun 17

What was the coldest temperature in Slidell in 2021?

The lowest temperature recorded in Slidell, Louisiana in 2021 was 22 °F which happened on Feb 16.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Slidell in 2021

Rank	Temperature	Date
1	22 °F	February 16
2	23 °F	February 17
3	28 °F	February 20
4	30 °F	February 18
5	31 °F	February 19
5	31 °F	January 9
7	32 °F	February 22
7	32 °F	February 21
7	32 °F	February 2
7	32 °F	January 10

January 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	74	54	1.24
January 2	67	46	0.00
January 3	56	35	0.00
January 4	57	38	0.00
January 5	66	42	0.00
January 6	66	42	0.00
January 7	62	46	0.85
January 8	52	42	0.00
January 9	48	31	0.00
January 10	50	32	0.00
January 11	43	35	0.54
January 12	44	35	0.00
January 13	44	35	0.01
January 14	53	36	0.00
January 15	67	39	0.00
January 16	59	41	0.00
January 17	52	33	0.00
January 18	59	33	0.00
January 19	61	35	0.00
January 20	69	48	0.00
January 21	68	51	0.00
January 22	69	58	0.33
January 23	64	57	0.18
January 24	63	57	0.00
January 25	70	60	0.00
January 26	74	61	0.01
January 27	71	61	0.06
January 28	66	39	0.00
January 29	56	37	0.00
January 30	59	39	0.00
January 31	65	52	0.16

February 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	73	42	0.24
February 2	54	32	0.00
February 3	55	35	0.00
February 4	57	38	0.00
February 5	70	49	0.08
February 6	52	45	0.29
February 7	52	45	0.05
February 8	60	44	0.00
February 9	63	50	0.10
February 10	73	58	0.00
February 11	67	61	0.08
February 12	69	44	3.26
February 13	48	39	0.07
February 14	48	36	0.00
February 15	47	35	0.02
February 16	37	22	0.23
February 17	37	23	0.00
February 18	52	30	0.92
February 19	46	31	0.00
February 20	53	28	0.00
February 21	58	32	0.00
February 22	64	32	0.00
February 23	73	37	0.00
February 24	67	42	0.00
February 25	69	51	0.00
February 26	75	59	0.00
February 27	80	62	0.00
February 28	78	61	0.00

March 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	80	68	0.00
March 2	76	46	0.35
March 3	49	41	0.46
March 4	62	40	0.00
March 5	66	45	0.00
March 6	70	51	0.05
March 7	67	45	0.00
March 8	67	39	0.00
March 9	69	44	0.00
March 10	71	54	0.00
March 11	73	61	0.00
March 12	76	63	0.00
March 13	76	65	0.00
March 14	76	62	0.00
March 15	76	64	0.00
March 16	80	69	0.98
March 17	80	71	0.07
March 18	80	55	0.70
March 19	68	52	0.00
March 20	55	49	0.00
March 21	64	49	0.00
March 22	69	49	0.00
March 23	71	55	0.00
March 24	68	59	5.64
March 25	74	59	0.72
March 26	75	70	0.27
March 27	80	70	0.01
March 28	83	72	0.00
March 29	76	52	0.03
March 30	69	53	0.00
March 31	77	68	0.00

April 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	82	49	0.06
April 2	63	42	0.00
April 3	63	41	0.00
April 4	67	47	0.00
April 5	69	49	0.00
April 6	72	53	0.00
April 7	79	58	0.00
April 8	78	64	1.84
April 9	80	66	0.00
April 10	90	62	2.25
April 11	83	62	0.18
April 12	76	52	0.00
April 13	78	57	0.00
April 14	75	58	0.91
April 15	69	62	4.48
April 16	70	60	1.18
April 17	69	61	0.62
April 18	63	55	0.45
April 19	70	52	0.00
April 20	73	56	0.01
April 21	75	50	0.00
April 22	67	48	0.00
April 23	66	52	0.00
April 24	74	64	0.62
April 25	83	57	0.02
April 26	75	56	0.00
April 27	77	62	0.00
April 28	79	70	0.00
April 29	82	72	0.00
April 30	83	70	0.00

May 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	80	65	0.00
May 2	79	68	0.00
May 3	79	70	0.10
May 4	84	76	0.00
May 5	84	67	2.65
May 6	76	62	0.03
May 7	80	56	0.00
May 8	82	59	0.00
May 9	81	69	0.00
May 10	82	70	1.38
May 11	77	70	0.93
May 12	77	66	2.55
May 13	79	62	0.00
May 14	75	59	0.00
May 15	78	59	0.00
May 16	78	61	0.00
May 17	79	66	0.00
May 18	75	69	2.74
May 19	76	69	0.32
May 20	78	71	1.31
May 21	77	73	0.14
May 22	79	68	0.00
May 23	80	63	0.00
May 24	82	67	0.00
May 25	81	67	0.00
May 26	83	68	0.00
May 27	86	74	0.00
May 28	86	73	0.00
May 29	89	70	0.00
May 30	87	60	0.00
May 31	81	62	0.00

June 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	84	66	0.00
June 2	83	74	0.44
June 3	83	73	0.20
June 4	85	72	0.01
June 5	82	70	0.15
June 6	78	71	0.13
June 7	80	73	0.98
June 8	87	77	0.00
June 9	88	78	0.00
June 10	86	75	0.00
June 11	89	77	0.00
June 12	90	77	0.00
June 13	89	78	0.00
June 14	93	68	0.73
June 15	90	73	0.00
June 16	93	76	0.00
June 17	92	69	0.00
June 18	88	74	0.13
June 19	82	73	8.70
June 20	85	75	0.04
June 21	84	74	0.24
June 22	85	72	2.82
June 23	86	75	0.33
June 24	87	76	0.00
June 25	89	75	0.00
June 26	85	73	2.77
June 27	86	77	0.11
June 28	85	75	0.17
June 29	87	75	0.19
June 30	86	74	0.22

July 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	85	73	0.03
July 2	85	75	0.00
July 3	87	75	0.00
July 4	85	74	0.98
July 5	86	75	0.00
July 6	84	76	0.21
July 7	86	74	0.01
July 8	83	76	0.02
July 9	87	77	0.02
July 10	83	74	0.39
July 11	84	74	0.04
July 12	86	72	0.57
July 13	87	72	0.11
July 14	88	74	0.00
July 15	87	75	0.00
July 16	88	76	0.13
July 17	87	75	0.01
July 18	86	75	0.86
July 19	87	78	0.05
July 20	89	72	1.00
July 21	83	73	0.00
July 22	90	77	0.00
July 23	92	77	0.00
July 24	92	78	0.02
July 25	93	76	0.00
July 26	90	77	1.03
July 27	91	74	0.00
July 28	91	79	0.00
July 29	91	76	0.38
July 30	91	76	0.01
July 31	93	79	0.00

August 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	91	75	0.11
August 2	92	76	0.00
August 3	87	75	1.72
August 4	84	74	0.31
August 5	88	68	0.00
August 6	87	68	0.00
August 7	88	72	0.00
August 8	90	76	0.00
August 9	92	78	0.00
August 10	90	77	0.00
August 11	92	77	0.01
August 12	89	73	0.00
August 13	86	73	0.00
August 14	88	73	0.84
August 15	91	74	0.00
August 16	89	73	0.88
August 17	90	75	0.00
August 18	91	77	0.00
August 19	91	79	0.00
August 20	91	78	0.00
August 21	92	76	0.00
August 22	92	77	0.00
August 23	93	77	0.00
August 24	94	79	0.00
August 25	95	78	0.00
August 26	91	75	0.83
August 27	85	74	0.57
August 28	78	73	1.17
August 29	84	72	1.32
August 30	97	72	10.00
August 31	85	76	0.62

September 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	n/a	78	0.00
September 2	90	75	0.10
September 3	90	73	0.00
September 4	90	72	0.00
September 5	91	72	0.00
September 6	89	75	0.01
September 7	86	74	0.67
September 8	88	74	0.00
September 9	85	72	0.00
September 10	87	64	0.00
September 11	85	63	0.00
September 12	86	67	0.00
September 13	82	73	0.44
September 14	87	72	1.29
September 15	78	72	2.80
September 16	80	74	0.17
September 17	85	77	0.10
September 18	81	74	1.51
September 19	84	73	0.33
September 20	84	74	0.05
September 21	87	76	0.00
September 22	88	71	0.18
September 23	78	58	0.00
September 24	77	55	0.00
September 25	78	56	0.00
September 26	80	58	0.00
September 27	82	61	0.00
September 28	84	66	0.00
September 29	83	71	1.56
September 30	79	n/a	0.32

October 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	n/a	n/a	0.00
October 2	n/a	n/a	0.00
October 3	n/a	n/a	0.41
October 4	n/a	n/a	0.00
October 5	n/a	n/a	2.65
October 6	n/a	n/a	0.00
October 7	n/a	n/a	0.00
October 8	n/a	n/a	0.00
October 9	n/a	n/a	0.00
October 10	n/a	n/a	0.00
October 11	n/a	n/a	0.00
October 12	n/a	n/a	0.00
October 13	n/a	n/a	0.00
October 14	n/a	n/a	0.00
October 15	n/a	n/a	0.00
October 16	n/a	n/a	0.00
October 17	n/a	n/a	0.00
October 18	n/a	n/a	0.00
October 19	n/a	n/a	0.00
October 20	n/a	n/a	0.00
October 21	n/a	n/a	0.04
October 22	n/a	n/a	0.03
October 23	n/a	n/a	0.00
October 24	n/a	n/a	0.00
October 25	n/a	n/a	0.00
October 26	n/a	n/a	0.00
October 27	n/a	n/a	0.00
October 28	n/a	n/a	2.12
October 29	n/a	n/a	0.00
October 30	n/a	n/a	0.00
October 31	n/a	n/a	0.00

November 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	n/a	n/a	0.00
November 2	n/a	n/a	0.00
November 3	n/a	n/a	0.00
November 4	n/a	n/a	0.00
November 5	n/a	n/a	0.00
November 6	n/a	n/a	0.00
November 7	n/a	n/a	0.00
November 8	n/a	n/a	0.00
November 9	n/a	n/a	0.00
November 10	n/a	n/a	0.00
November 11	n/a	n/a	0.00
November 12	n/a	n/a	0.00
November 13	n/a	n/a	0.00
November 14	n/a	n/a	0.00
November 15	n/a	n/a	0.00
November 16	n/a	n/a	0.00
November 17	n/a	n/a	0.00
November 18	n/a	n/a	0.00
November 19	n/a	n/a	0.03
November 20	n/a	n/a	0.00
November 21	n/a	n/a	0.00
November 22	n/a	n/a	0.24
November 23	n/a	n/a	0.00
November 24	n/a	n/a	0.00
November 25	n/a	n/a	0.00
November 26	n/a	n/a	0.01
November 27	n/a	n/a	0.00
November 28	n/a	n/a	0.02
November 29	n/a	n/a	0.00
November 30	n/a	n/a	0.00

December 2021 Slidell Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	n/a	n/a	0.00
December 2	n/a	n/a	0.00
December 3	n/a	n/a	0.00
December 4	n/a	n/a	0.00
December 5	n/a	n/a	0.00
December 6	n/a	n/a	0.00
December 7	n/a	n/a	0.63
December 8	n/a	n/a	0.12
December 9	n/a	n/a	0.04
December 10	n/a	n/a	0.08
December 11	n/a	n/a	0.00
December 12	n/a	n/a	0.09
December 13	n/a	n/a	0.00
December 14	n/a	n/a	0.00
December 15	n/a	n/a	0.00
December 16	n/a	n/a	0.00
December 17	n/a	n/a	0.00
December 18	n/a	n/a	0.00
December 19	n/a	n/a	0.73
December 20	n/a	n/a	0.00
December 21	n/a	n/a	0.00
December 22	n/a	n/a	0.00
December 23	n/a	n/a	0.00
December 24	n/a	n/a	0.00
December 25	n/a	n/a	0.00
December 26	n/a	n/a	0.00
December 27	n/a	n/a	0.06
December 28	n/a	n/a	0.00
December 29	n/a	n/a	0.42
December 30	n/a	n/a	0.00
December 31	n/a	n/a	0.00

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Weather Station Details

Years	Station	Coordinates
1956–2024	Slidell	location