Philadelphia Weather in 1978

Historical record of Philadelphia, Pennsylvania weather for the year 1978 based on NOAA data.

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1978 Philadelphia Weather Extremes
Highest temperature	99 °F	July 23
Lowest temperature	8 °F	March 5
Highest daily low	80 °F	July 23
Lowest daily high	19 °F	January 10
Most daily precipitation	3.7 inches	July 3
Most daily snow	12.4 inches	February 6
Total annual precipitation	46.0 inches	-
Total annual snow	57.0 inches	-

What was the hottest temperature in Philadelphia in 1978?

The highest temperature recorded in Philadelphia, Pennsylvania in 1978 was 99 °F which happened on July 23.

Highest Temperatures: All-Time By Year

Highest Temperatures in Philadelphia in 1978

Rank	Temperature	Date
1	99 °F	Jul 23
2	98 °F	Jul 22
3	94 °F	Jul 27
4	93 °F	Aug 17
4	93 °F	Jul 21
4	93 °F	Jun 19
7	92 °F	Aug 19
7	92 °F	Aug 16
7	92 °F	Jun 28
10	91 °F	Sep 7
10	91 °F	Aug 29
10	91 °F	Aug 24
10	91 °F	Aug 23
10	91 °F	Aug 15
10	91 °F	Jul 10
10	91 °F	Jul 9
10	91 °F	Jun 29

What was the coldest temperature in Philadelphia in 1978?

The lowest temperature recorded in Philadelphia, Pennsylvania in 1978 was 8 °F which happened on Mar 5.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Philadelphia in 1978

Rank	Temperature	Date
1	8 °F	March 5
2	9 °F	February 16
3	10 °F	March 6
3	10 °F	February 20
3	10 °F	February 5
6	11 °F	January 24
6	11 °F	January 23
6	11 °F	January 10
9	12 °F	February 11
9	12 °F	February 10
9	12 °F	February 4
9	12 °F	January 9

January 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	32	28	0.16	2.0
January 2	34	24	0.04	0.6
January 3	28	15	0.00	0.0
January 4	32	13	0.00	0.0
January 5	38	24	0.00	0.0
January 6	47	32	0.00	0.0
January 7	40	37	0.00	0.0
January 8	61	40	0.36	0.0
January 9	61	12	0.72	0.2
January 10	19	11	0.00	0.0
January 11	27	17	0.00	0.0
January 12	34	15	0.00	0.0
January 13	33	26	1.46	3.0
January 14	34	23	0.20	0.0
January 15	26	15	0.00	0.0
January 16	28	15	0.00	0.0
January 17	40	23	1.66	4.4
January 18	40	26	0.05	0.0
January 19	28	22	0.39	3.9
January 20	36	27	1.89	9.3
January 21	29	19	0.00	0.0
January 22	30	15	0.00	0.0
January 23	32	11	0.00	0.0
January 24	38	11	0.00	0.0
January 25	43	29	1.83	0.0
January 26	59	24	0.10	0.0
January 27	27	21	0.00	0.0
January 28	26	19	0.00	0.0
January 29	28	18	0.00	0.0
January 30	33	19	0.00	0.0
January 31	26	13	0.00	0.0

February 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	29	14	0.00	0.0
February 2	29	19	0.01	0.1
February 3	31	18	0.00	0.0
February 4	26	12	0.00	0.0
February 5	28	10	0.05	0.5
February 6	25	20	0.70	12.4
February 7	32	19	0.06	1.2
February 8	32	19	0.00	0.0
February 9	33	15	0.00	0.0
February 10	29	12	0.00	0.0
February 11	31	12	0.00	0.0
February 12	34	17	0.00	0.0
February 13	33	14	0.31	3.1
February 14	33	24	0.20	1.5
February 15	31	13	0.00	0.0
February 16	34	9	0.00	0.0
February 17	37	25	0.00	0.0
February 18	34	22	0.02	0.2
February 19	30	17	0.00	0.0
February 20	32	10	0.00	0.0
February 21	33	18	0.00	0.0
February 22	29	14	0.00	0.0
February 23	32	17	0.00	0.0
February 24	37	18	0.00	0.0
February 25	41	29	0.00	0.0
February 26	38	25	0.00	0.0
February 27	32	21	0.00	0.0
February 28	34	18	0.00	0.0

March 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	33	24	0.01	0.1
March 2	31	17	0.00	0.0
March 3	29	24	0.59	6.5
March 4	32	20	0.00	0.0
March 5	26	8	0.00	0.0
March 6	32	10	0.00	0.0
March 7	34	17	0.00	0.0
March 8	30	24	0.16	1.3
March 9	38	25	0.01	0.1
March 10	40	34	0.02	0.0
March 11	49	31	0.00	0.0
March 12	59	36	0.00	0.0
March 13	52	36	0.00	0.0
March 14	56	36	0.44	0.0
March 15	52	36	0.00	0.0
March 16	39	32	0.57	4.1
March 17	43	28	0.00	0.0
March 18	40	25	0.00	0.0
March 19	61	34	0.00	0.0
March 20	53	33	0.00	0.0
March 21	72	39	0.09	0.0
March 22	58	41	0.05	0.0
March 23	68	43	0.00	0.0
March 24	54	38	0.00	0.0
March 25	39	33	0.06	0.0
March 26	49	34	1.62	0.0
March 27	56	47	0.69	0.0
March 28	60	42	0.00	0.0
March 29	63	40	0.00	0.0
March 30	54	34	0.00	0.0
March 31	59	38	0.00	0.0

April 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	81	40	0.00
April 2	65	39	0.00
April 3	39	31	0.04
April 4	60	34	0.21
April 5	63	42	0.00
April 6	51	34	0.10
April 7	70	40	0.04
April 8	60	35	0.00
April 9	55	30	0.00
April 10	62	37	0.00
April 11	66	42	0.12
April 12	71	44	0.00
April 13	75	47	0.00
April 14	59	42	0.00
April 15	58	35	0.00
April 16	55	34	0.00
April 17	59	35	0.00
April 18	62	36	0.00
April 19	54	42	0.77
April 20	57	48	0.47
April 21	54	45	0.00
April 22	60	39	0.00
April 23	63	37	0.00
April 24	67	46	0.00
April 25	66	45	0.00
April 26	54	44	0.00
April 27	50	42	0.01
April 28	71	37	0.00
April 29	74	45	0.00
April 30	65	45	0.00

May 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	57	34	0.00
May 2	67	41	0.00
May 3	68	42	0.00
May 4	59	44	0.42
May 5	47	44	0.11
May 6	53	45	0.03
May 7	68	47	0.00
May 8	59	42	0.32
May 9	76	56	0.80
May 10	69	47	0.00
May 11	73	48	0.00
May 12	77	48	0.00
May 13	72	58	0.07
May 14	67	53	0.73
May 15	56	52	0.02
May 16	55	52	0.68
May 17	69	54	0.22
May 18	72	51	0.08
May 19	78	56	0.00
May 20	89	56	0.00
May 21	84	58	0.00
May 22	77	51	0.00
May 23	78	54	0.03
May 24	64	55	2.45
May 25	78	57	0.00
May 26	81	59	0.00
May 27	69	61	0.00
May 28	78	61	0.00
May 29	79	62	0.04
May 30	85	61	0.00
May 31	89	65	0.01

June 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	86	68	0.00
June 2	88	65	0.00
June 3	80	60	0.13
June 4	75	56	0.00
June 5	83	58	0.18
June 6	79	55	0.00
June 7	81	60	0.16
June 8	83	73	0.37
June 9	84	63	0.01
June 10	81	56	0.00
June 11	85	60	0.00
June 12	85	62	0.00
June 13	72	57	0.06
June 14	70	48	0.00
June 15	75	49	0.00
June 16	79	52	0.00
June 17	67	60	0.08
June 18	89	60	0.00
June 19	93	71	0.08
June 20	87	66	0.00
June 21	85	68	0.48
June 22	84	68	0.00
June 23	85	65	0.00
June 24	80	64	0.00
June 25	85	59	0.00
June 26	80	64	0.02
June 27	90	72	0.18
June 28	92	72	0.00
June 29	91	69	0.00
June 30	90	69	0.00

July 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	81	60	0.00
July 2	70	63	0.00
July 3	66	61	3.66
July 4	65	57	0.01
July 5	82	56	0.00
July 6	86	62	0.00
July 7	86	63	0.00
July 8	89	64	0.00
July 9	91	71	0.00
July 10	91	73	0.04
July 11	80	64	0.00
July 12	82	57	0.00
July 13	83	60	0.00
July 14	76	65	0.06
July 15	85	69	0.00
July 16	78	69	0.06
July 17	81	67	0.18
July 18	86	66	0.00
July 19	90	67	0.00
July 20	90	70	0.00
July 21	93	73	0.00
July 22	98	77	0.00
July 23	99	80	0.00
July 24	89	73	0.00
July 25	81	68	0.10
July 26	85	69	0.00
July 27	94	71	0.25
July 28	88	70	0.09
July 29	83	63	0.00
July 30	86	74	0.00
July 31	78	68	0.82

August 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	77	68	0.25
August 2	80	71	0.00
August 3	90	75	0.11
August 4	84	73	0.02
August 5	82	72	1.16
August 6	85	75	0.80
August 7	90	74	0.08
August 8	90	74	0.00
August 9	89	73	0.20
August 10	83	72	0.14
August 11	87	72	0.46
August 12	87	74	0.00
August 13	88	73	0.00
August 14	90	73	0.00
August 15	91	74	0.00
August 16	92	77	0.00
August 17	93	75	0.00
August 18	87	70	0.00
August 19	92	68	0.00
August 20	86	72	0.00
August 21	85	64	0.00
August 22	87	67	0.00
August 23	91	66	0.00
August 24	91	70	0.00
August 25	78	66	0.00
August 26	85	66	0.00
August 27	83	69	0.06
August 28	86	72	2.33
August 29	91	76	0.00
August 30	85	74	0.00
August 31	85	70	0.43

September 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	80	66	0.40
September 2	82	64	0.00
September 3	85	64	0.00
September 4	81	63	0.00
September 5	86	60	0.00
September 6	89	66	0.00
September 7	91	72	0.00
September 8	76	59	0.03
September 9	80	59	0.00
September 10	75	57	0.00
September 11	86	66	0.00
September 12	89	65	0.30
September 13	72	57	0.00
September 14	72	55	0.00
September 15	75	59	0.06
September 16	86	64	0.19
September 17	79	62	0.00
September 18	87	68	0.34
September 19	72	60	0.21
September 20	76	62	0.00
September 21	83	61	0.00
September 22	80	61	0.06
September 23	71	54	0.00
September 24	70	49	0.00
September 25	77	55	0.00
September 26	65	48	0.00
September 27	71	47	0.00
September 28	72	52	0.00
September 29	66	44	0.00
September 30	72	45	0.00

October 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	75	61	0.08
October 2	71	51	0.00
October 3	67	47	0.00
October 4	61	54	0.08
October 5	68	54	0.00
October 6	73	49	0.09
October 7	63	45	0.00
October 8	61	41	0.00
October 9	60	35	0.00
October 10	70	41	0.00
October 11	75	46	0.00
October 12	76	55	0.00
October 13	81	57	0.00
October 14	74	48	0.06
October 15	56	39	0.00
October 16	58	38	0.40
October 17	56	40	0.31
October 18	60	33	0.00
October 19	60	49	0.03
October 20	59	41	0.00
October 21	68	39	0.00
October 22	74	45	0.00
October 23	80	47	0.00
October 24	58	36	0.00
October 25	63	36	0.00
October 26	67	56	0.00
October 27	63	43	0.15
October 28	65	37	0.00
October 29	62	44	0.00
October 30	58	43	0.00
October 31	63	44	0.00

November 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	65	43	0.00	0.0
November 2	65	38	0.00	0.0
November 3	67	43	0.00	0.0
November 4	55	47	0.00	0.0
November 5	68	48	0.00	0.0
November 6	68	44	0.00	0.0
November 7	63	44	0.00	0.0
November 8	54	44	0.00	0.0
November 9	62	36	0.00	0.0
November 10	66	39	0.00	0.0
November 11	63	45	0.00	0.0
November 12	58	44	0.00	0.0
November 13	52	46	0.02	0.0
November 14	68	51	0.00	0.0
November 15	61	46	0.09	0.0
November 16	48	44	0.06	0.0
November 17	64	44	0.15	0.0
November 18	66	40	0.37	0.0
November 19	54	37	0.00	0.0
November 20	50	37	0.00	0.0
November 21	48	34	0.00	0.0
November 22	41	36	0.00	0.0
November 23	52	37	0.10	0.0
November 24	57	41	0.02	0.0
November 25	46	38	0.00	0.0
November 26	39	29	0.00	0.0
November 27	38	25	0.86	2.5
November 28	44	34	0.03	0.0
November 29	42	29	0.49	0.0
November 30	53	35	0.01	0.0

December 1978 Philadelphia Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	46	33	0.00
December 2	53	33	0.00
December 3	52	34	0.11
December 4	68	45	0.59
December 5	50	37	0.41
December 6	59	34	0.00
December 7	58	35	0.00
December 8	65	48	0.22
December 9	64	34	1.91
December 10	34	22	0.00
December 11	34	18	0.00
December 12	44	23	0.00
December 13	52	26	0.00
December 14	40	28	0.00
December 15	51	29	0.00
December 16	55	30	0.06
December 17	45	37	0.02
December 18	45	34	0.00
December 19	39	23	0.00
December 20	43	31	0.28
December 21	49	34	0.23
December 22	43	28	0.00
December 23	48	27	0.00
December 24	45	25	1.22
December 25	46	29	0.36
December 26	42	25	0.00
December 27	38	26	0.00
December 28	34	23	0.00
December 29	35	18	0.00
December 30	40	22	0.00
December 31	48	35	0.20

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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