Philadelphia Weather in 2021

Historical record of Philadelphia, Pennsylvania weather for the year 2021 based on NOAA data.

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2021 Philadelphia Weather Extremes
Highest temperature	97 °F	June 30
Lowest temperature	19 °F	January 30
Highest daily low	79 °F	August 19
Lowest daily high	29 °F	February 12
Most daily precipitation	3.2 inches	August 28
Most daily snow	3.8 inches	February 1
Total annual precipitation	43.8 inches	-
Total annual snow	17.3 inches	-

What was the hottest temperature in Philadelphia in 2021?

The highest temperature recorded in Philadelphia, Pennsylvania in 2021 was 97 °F which happened on June 30.

Highest Temperatures: All-Time By Year

Highest Temperatures in Philadelphia in 2021

Rank	Temperature	Date
1	97 °F	Jun 30
2	96 °F	Aug 12
2	96 °F	Jul 7
4	95 °F	Aug 13
4	95 °F	Aug 11
4	95 °F	Jun 29
7	94 °F	Aug 25
7	94 °F	Jul 27
7	94 °F	Jul 17
7	94 °F	Jul 16
7	94 °F	Jul 6
7	94 °F	Jun 28
7	94 °F	Jun 7

What was the coldest temperature in Philadelphia in 2021?

The lowest temperature recorded in Philadelphia, Pennsylvania in 2021 was 19 °F which happened on Jan 30.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Philadelphia in 2021

Rank	Temperature	Date
1	19 °F	January 30
2	20 °F	February 8
2	20 °F	January 29
4	22 °F	February 21
5	23 °F	February 12
5	23 °F	January 28
5	23 °F	January 24
8	24 °F	March 5
8	24 °F	February 17
8	24 °F	February 9
8	24 °F	January 21

January 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	41	28	0.82	0.0
January 2	53	38	0.02	0.0
January 3	39	35	0.19	0.0
January 4	43	35	0.01	0.0
January 5	42	38	0.00	0.0
January 6	43	36	0.00	0.0
January 7	45	29	0.00	0.0
January 8	36	27	0.00	0.0
January 9	44	25	0.00	0.0
January 10	46	30	0.00	0.0
January 11	40	25	0.00	0.0
January 12	44	27	0.00	0.0
January 13	46	28	0.00	0.0
January 14	52	30	0.00	0.0
January 15	54	32	0.07	0.0
January 16	47	36	0.16	0.0
January 17	47	34	0.00	0.0
January 18	46	33	0.00	0.0
January 19	45	30	0.00	0.0
January 20	41	28	0.00	0.0
January 21	44	24	0.00	0.0
January 22	46	31	0.00	0.0
January 23	38	27	0.00	0.0
January 24	35	23	0.00	0.0
January 25	36	30	0.00	0.0
January 26	38	34	0.09	0.0
January 27	41	31	0.00	0.0
January 28	34	23	0.00	0.0
January 29	29	20	0.00	0.0
January 30	35	19	0.00	0.0
January 31	31	25	0.19	3.0

February 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	33	25	0.40	3.8
February 2	36	30	0.09	1.3
February 3	37	30	0.00	0.2
February 4	44	30	0.00	0.0
February 5	50	33	0.07	0.0
February 6	46	30	0.00	0.0
February 7	38	29	0.51	1.7
February 8	32	20	0.00	0.0
February 9	38	24	0.00	0.0
February 10	37	27	0.01	0.4
February 11	32	28	0.17	2.7
February 12	29	23	0.00	0.0
February 13	30	26	0.05	0.0
February 14	36	26	0.00	0.0
February 15	38	33	0.01	0.0
February 16	51	30	0.74	0.0
February 17	33	24	0.00	0.0
February 18	30	25	0.53	2.8
February 19	33	28	0.16	0.6
February 20	33	26	0.00	0.0
February 21	37	22	0.00	0.0
February 22	36	30	0.51	0.8
February 23	50	31	0.00	0.0
February 24	56	32	0.00	0.0
February 25	50	34	0.00	0.0
February 26	48	34	0.03	0.0
February 27	52	34	0.36	0.0
February 28	45	39	1.00	0.0

March 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	48	35	0.14
March 2	38	25	0.00
March 3	55	29	0.00
March 4	49	32	0.00
March 5	40	24	0.00
March 6	39	29	0.00
March 7	44	28	0.00
March 8	47	26	0.00
March 9	69	37	0.00
March 10	67	38	0.00
March 11	74	41	0.00
March 12	71	52	0.00
March 13	56	37	0.00
March 14	59	34	0.00
March 15	43	27	0.00
March 16	42	33	0.00
March 17	49	38	0.00
March 18	50	44	0.92
March 19	48	36	0.00
March 20	58	32	0.00
March 21	65	33	0.00
March 22	65	35	0.00
March 23	68	40	0.00
March 24	58	47	1.56
March 25	61	51	0.01
March 26	83	56	0.00
March 27	69	48	0.00
March 28	70	50	0.60
March 29	55	43	0.00
March 30	64	37	0.00
March 31	68	49	0.98

April 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	58	36	0.02
April 2	44	29	0.00
April 3	53	32	0.00
April 4	69	45	0.00
April 5	70	48	0.00
April 6	72	49	0.00
April 7	70	50	0.00
April 8	72	45	0.00
April 9	61	48	0.02
April 10	71	51	0.18
April 11	69	49	1.46
April 12	51	47	0.01
April 13	65	46	0.02
April 14	65	48	0.01
April 15	65	49	0.00
April 16	57	43	0.00
April 17	58	44	0.00
April 18	65	49	0.00
April 19	63	46	0.00
April 20	75	48	0.00
April 21	73	40	0.01
April 22	50	35	0.00
April 23	63	36	0.00
April 24	68	44	0.04
April 25	66	49	0.45
April 26	62	43	0.00
April 27	78	47	0.00
April 28	87	60	0.00
April 29	80	64	0.47
April 30	70	48	0.00

May 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	67	45	0.00
May 2	84	55	0.00
May 3	70	60	0.08
May 4	83	58	0.03
May 5	76	57	0.40
May 6	66	50	0.00
May 7	69	49	0.08
May 8	59	48	0.09
May 9	57	47	0.01
May 10	63	52	0.00
May 11	67	48	0.00
May 12	69	46	0.00
May 13	72	47	0.00
May 14	76	50	0.00
May 15	78	49	0.00
May 16	73	50	0.00
May 17	76	52	0.00
May 18	81	53	0.00
May 19	89	59	0.00
May 20	83	58	0.00
May 21	83	56	0.00
May 22	92	63	0.00
May 23	92	74	0.00
May 24	77	59	0.00
May 25	75	59	0.00
May 26	92	64	0.93
May 27	83	67	0.00
May 28	70	51	0.67
May 29	54	48	0.66
May 30	53	47	0.29
May 31	73	50	0.00

June 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	77	55	0.00
June 2	79	61	0.00
June 3	81	63	0.31
June 4	82	69	0.76
June 5	93	66	0.00
June 6	93	69	0.00
June 7	94	72	0.00
June 8	88	73	0.44
June 9	89	71	0.00
June 10	84	65	0.00
June 11	67	63	0.31
June 12	80	64	0.00
June 13	79	63	0.00
June 14	85	66	0.79
June 15	81	65	0.04
June 16	79	63	0.00
June 17	78	58	0.00
June 18	85	60	0.00
June 19	90	68	0.04
June 20	90	66	0.00
June 21	89	71	0.17
June 22	76	60	0.15
June 23	77	54	0.00
June 24	80	57	0.00
June 25	81	58	0.00
June 26	85	70	0.01
June 27	91	74	0.00
June 28	94	72	0.00
June 29	95	75	0.00
June 30	97	75	0.04

July 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	86	70	1.70
July 2	79	67	0.10
July 3	76	64	0.57
July 4	81	62	0.12
July 5	88	66	0.00
July 6	94	74	0.00
July 7	96	76	0.00
July 8	90	71	0.41
July 9	89	71	0.36
July 10	85	71	0.00
July 11	88	71	0.00
July 12	93	74	1.09
July 13	88	74	0.00
July 14	93	74	0.00
July 15	91	76	0.00
July 16	94	78	0.00
July 17	94	72	2.01
July 18	80	73	0.00
July 19	88	72	0.00
July 20	88	73	0.00
July 21	86	70	0.14
July 22	82	65	0.00
July 23	85	66	0.00
July 24	86	66	0.00
July 25	88	69	0.06
July 26	91	73	0.00
July 27	94	72	0.00
July 28	86	71	0.00
July 29	81	69	0.16
July 30	87	70	0.00
July 31	80	63	0.00

August 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	77	64	0.11
August 2	81	61	0.00
August 3	80	65	0.00
August 4	80	65	0.00
August 5	86	64	0.00
August 6	90	69	0.00
August 7	87	68	0.13
August 8	82	66	0.69
August 9	91	68	0.00
August 10	93	73	0.39
August 11	95	73	0.10
August 12	96	75	0.00
August 13	95	79	0.00
August 14	90	75	0.00
August 15	87	72	0.00
August 16	82	71	0.00
August 17	83	73	0.06
August 18	91	76	0.00
August 19	90	79	0.00
August 20	82	74	0.27
August 21	83	72	0.18
August 22	83	73	0.86
August 23	90	73	0.22
August 24	92	74	0.00
August 25	94	73	0.00
August 26	93	75	0.00
August 27	93	76	0.00
August 28	78	69	3.17
August 29	80	68	0.00
August 30	90	73	0.00
August 31	86	74	0.00

September 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	82	64	2.37
September 2	78	63	0.00
September 3	75	59	0.00
September 4	79	60	0.00
September 5	76	63	0.04
September 6	85	69	0.03
September 7	84	62	0.00
September 8	86	66	0.01
September 9	74	66	0.47
September 10	77	62	0.00
September 11	80	58	0.00
September 12	86	64	0.00
September 13	88	70	0.00
September 14	88	69	0.00
September 15	89	71	0.05
September 16	81	71	0.00
September 17	77	70	0.01
September 18	87	69	0.00
September 19	80	62	0.00
September 20	80	60	0.00
September 21	83	60	0.00
September 22	84	69	0.00
September 23	81	62	1.56
September 24	74	56	0.00
September 25	76	55	0.00
September 26	74	61	0.00
September 27	82	57	0.00
September 28	78	61	0.07
September 29	70	54	0.00
September 30	70	57	0.00

October 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	69	50	0.00
October 2	77	54	0.00
October 3	83	60	0.00
October 4	82	69	0.00
October 5	70	63	2.36
October 6	72	64	0.00
October 7	77	64	0.00
October 8	79	61	0.00
October 9	71	63	0.00
October 10	70	63	0.03
October 11	72	62	0.00
October 12	71	62	0.00
October 13	73	62	0.00
October 14	79	62	0.00
October 15	82	61	0.00
October 16	82	57	0.27
October 17	62	51	0.00
October 18	63	49	0.00
October 19	71	46	0.00
October 20	76	53	0.00
October 21	76	56	0.00
October 22	67	55	0.00
October 23	64	51	0.01
October 24	62	46	0.00
October 25	78	59	0.82
October 26	66	50	0.66
October 27	68	50	0.03
October 28	65	49	0.00
October 29	63	51	0.53
October 30	67	55	0.09
October 31	64	52	0.01

November 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	60	48	0.00
November 2	53	41	0.02
November 3	53	37	0.00
November 4	53	36	0.00
November 5	54	35	0.00
November 6	57	34	0.00
November 7	55	37	0.00
November 8	67	40	0.00
November 9	71	44	0.00
November 10	68	47	0.00
November 11	67	42	0.00
November 12	68	45	0.15
November 13	62	40	0.00
November 14	49	37	0.01
November 15	49	38	0.00
November 16	50	34	0.00
November 17	66	30	0.00
November 18	73	47	0.07
November 19	49	37	0.00
November 20	49	32	0.00
November 21	54	39	0.00
November 22	54	38	0.05
November 23	46	33	0.00
November 24	49	29	0.00
November 25	57	35	0.00
November 26	50	40	0.16
November 27	43	38	0.00
November 28	53	37	0.00
November 29	46	34	0.00
November 30	45	30	0.00

December 2021 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	53	36	0.00
December 2	61	46	0.00
December 3	55	42	0.00
December 4	49	37	0.00
December 5	55	35	0.00
December 6	67	43	0.07
December 7	44	36	0.00
December 8	43	36	0.00
December 9	42	30	0.00
December 10	51	33	0.00
December 11	68	46	0.19
December 12	51	38	0.00
December 13	56	33	0.00
December 14	57	35	0.00
December 15	59	35	0.00
December 16	65	49	0.00
December 17	60	51	0.00
December 18	52	41	0.10
December 19	50	30	0.00
December 20	40	25	0.00
December 21	44	29	0.01
December 22	49	33	0.16
December 23	40	28	0.00
December 24	53	35	0.00
December 25	59	41	0.65
December 26	57	40	0.00
December 27	41	37	0.19
December 28	49	39	0.04
December 29	53	44	0.03
December 30	53	46	0.20
December 31	54	48	0.00

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Weather Station Details

Years	Station	Coordinates
1941–2024	Philadelphia International Airport	location
1916–1940	Philadelphia Naval Yard	location
1894–1915	Drexel University	location