Portland Weather in 1978

Historical record of Portland, Maine weather for the year 1978 based on NOAA data.

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1978 Portland Weather Extremes
Highest temperature	96 °F	July 23
Lowest temperature	-14 °F	February 4
Highest daily low	69 °F	July 22
Lowest daily high	17 °F	February 3
Most daily precipitation	2.3 inches	March 27
Most daily snow	9.6 inches	January 20
Total annual precipitation	36.5 inches	-
Total annual snow	74.7 inches	-

What was the hottest temperature in Portland in 1978?

The highest temperature recorded in Portland, Maine in 1978 was 96 °F which happened on July 23.

Highest Temperatures: All-Time By Year

Highest Temperatures in Portland in 1978

Rank	Temperature	Date
1	96 °F	Jul 23
2	93 °F	Aug 17
3	92 °F	Jul 7
4	91 °F	Sep 21
4	91 °F	Aug 14
4	91 °F	Jul 21
7	90 °F	Jul 6
8	89 °F	Jul 22
9	88 °F	Aug 29
9	88 °F	Aug 9

What was the coldest temperature in Portland in 1978?

The lowest temperature recorded in Portland, Maine in 1978 was -14 °F which happened on Feb 4.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Portland in 1978

Rank	Temperature	Date
1	-14 °F	February 4
2	-13 °F	February 5
3	-10 °F	February 11
4	-7 °F	February 10
5	-5 °F	January 24
6	-4 °F	December 11
6	-4 °F	February 9
8	-3 °F	February 3
9	-2 °F	January 4
10	-1 °F	March 2
10	-1 °F	February 2

January 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	23	15	0.00	0.0
January 2	21	8	0.19	3.3
January 3	26	10	0.00	0.0
January 4	25	-2	0.00	0.0
January 5	39	20	0.00	0.0
January 6	34	24	0.00	0.0
January 7	24	13	0.00	0.0
January 8	48	17	0.88	0.6
January 9	54	18	0.62	0.0
January 10	18	5	0.04	0.2
January 11	26	5	0.00	0.0
January 12	27	13	0.00	0.0
January 13	20	13	0.32	3.0
January 14	22	18	1.49	5.9
January 15	31	13	0.00	0.0
January 16	27	11	0.00	0.0
January 17	26	9	0.04	0.6
January 18	27	19	0.60	5.8
January 19	27	10	0.00	0.0
January 20	25	13	0.46	9.6
January 21	25	14	0.10	1.7
January 22	36	10	0.00	0.0
January 23	32	6	0.00	0.0
January 24	36	-5	0.00	0.0
January 25	36	26	1.20	0.0
January 26	54	34	0.97	0.0
January 27	34	20	0.00	0.0
January 28	29	17	0.00	0.0
January 29	19	5	0.00	0.0
January 30	25	1	0.00	0.0
January 31	26	9	0.00	0.0

February 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	27	6	0.00	0.0
February 2	23	-1	0.00	0.0
February 3	17	-3	0.00	0.0
February 4	22	-14	0.00	0.0
February 5	20	-13	0.00	0.0
February 6	19	8	0.07	0.7
February 7	28	13	0.76	7.2
February 8	32	11	0.01	0.1
February 9	36	-4	0.00	0.0
February 10	27	-7	0.00	0.0
February 11	28	-10	0.00	0.0
February 12	34	5	0.00	0.0
February 13	34	4	0.00	0.0
February 14	31	12	0.00	0.0
February 15	34	26	0.03	0.2
February 16	33	23	0.00	0.0
February 17	37	27	0.00	0.0
February 18	36	18	0.00	0.0
February 19	31	11	0.00	0.0
February 20	29	0	0.00	0.0
February 21	29	6	0.00	0.0
February 22	32	2	0.00	0.0
February 23	38	19	0.00	0.0
February 24	37	22	0.00	0.0
February 25	39	19	0.00	0.0
February 26	37	12	0.00	0.0
February 27	37	17	0.00	0.0
February 28	31	9	0.00	0.0

March 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	30	2	0.00	0.0
March 2	26	-1	0.00	0.0
March 3	26	3	0.20	3.3
March 4	30	12	0.11	3.1
March 5	20	5	0.00	0.0
March 6	32	8	0.00	0.0
March 7	33	5	0.00	0.0
March 8	34	12	0.00	0.0
March 9	38	9	0.00	0.0
March 10	43	23	0.00	0.0
March 11	42	28	0.00	0.0
March 12	40	31	0.00	0.0
March 13	38	28	0.00	0.0
March 14	41	26	0.70	0.0
March 15	49	33	0.00	0.0
March 16	39	25	0.00	0.0
March 17	37	23	0.00	0.0
March 18	37	15	0.00	0.0
March 19	49	28	0.07	0.6
March 20	40	21	0.00	0.0
March 21	50	33	0.12	0.0
March 22	48	27	0.13	0.0
March 23	52	27	0.37	3.8
March 24	45	18	0.00	0.0
March 25	41	14	0.00	0.0
March 26	35	29	0.23	1.7
March 27	45	32	2.26	0.0
March 28	53	32	0.00	0.0
March 29	54	33	0.00	0.0
March 30	45	26	0.00	0.0
March 31	49	23	0.00	0.0

April 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	42	28	0.72	0.8
April 2	43	28	0.00	0.0
April 3	42	22	0.00	0.0
April 4	37	34	0.20	0.0
April 5	50	36	0.65	0.0
April 6	47	31	0.00	0.0
April 7	45	24	0.01	0.0
April 8	47	33	0.03	0.0
April 9	47	29	0.00	0.0
April 10	58	25	0.00	0.0
April 11	44	37	0.53	0.0
April 12	52	34	0.30	0.0
April 13	53	38	0.02	0.0
April 14	50	33	0.00	0.0
April 15	50	28	0.00	0.0
April 16	47	30	0.00	0.0
April 17	49	28	0.00	0.0
April 18	52	26	0.00	0.0
April 19	45	33	1.04	0.0
April 20	47	40	0.95	0.0
April 21	48	41	0.01	0.0
April 22	56	33	0.00	0.0
April 23	55	29	0.00	0.0
April 24	54	31	0.00	0.0
April 25	52	35	0.00	0.0
April 26	61	32	0.00	0.0
April 27	49	33	0.00	0.0
April 28	55	35	0.00	0.0
April 29	62	35	0.00	0.0
April 30	46	29	0.00	0.0

May 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	51	26	0.00
May 2	56	31	0.00
May 3	56	34	0.00
May 4	55	30	0.00
May 5	50	31	0.00
May 6	58	29	0.00
May 7	65	38	0.00
May 8	65	33	0.00
May 9	53	44	0.89
May 10	68	44	0.00
May 11	67	40	0.00
May 12	65	37	0.00
May 13	62	43	0.00
May 14	56	46	0.00
May 15	48	45	1.32
May 16	50	46	1.52
May 17	51	46	0.28
May 18	53	46	0.00
May 19	68	44	0.00
May 20	72	49	0.00
May 21	72	46	0.14
May 22	73	46	0.00
May 23	74	39	0.00
May 24	77	48	0.00
May 25	66	52	0.00
May 26	57	49	0.01
May 27	64	49	0.00
May 28	80	49	0.00
May 29	80	55	0.00
May 30	81	55	0.00
May 31	55	50	0.20

June 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	80	50	0.00
June 2	56	49	0.00
June 3	65	52	0.75
June 4	71	52	0.16
June 5	66	46	0.08
June 6	69	45	0.00
June 7	69	48	0.07
June 8	64	57	0.59
June 9	72	55	0.22
June 10	68	47	0.00
June 11	71	44	0.00
June 12	73	51	0.00
June 13	67	53	0.19
June 14	61	46	0.04
June 15	71	42	0.00
June 16	74	45	0.00
June 17	73	46	0.00
June 18	66	53	0.00
June 19	67	53	0.10
June 20	63	52	0.06
June 21	64	54	0.08
June 22	66	53	0.05
June 23	74	54	0.00
June 24	73	49	0.00
June 25	76	51	0.00
June 26	77	53	0.00
June 27	81	60	0.00
June 28	86	62	0.00
June 29	83	58	0.03
June 30	78	54	0.00

July 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	75	50	0.00
July 2	70	44	0.00
July 3	71	45	0.00
July 4	61	54	0.00
July 5	73	53	0.00
July 6	90	51	0.00
July 7	92	59	0.00
July 8	87	62	0.00
July 9	82	61	0.01
July 10	87	61	0.15
July 11	75	51	0.00
July 12	84	47	0.00
July 13	85	52	0.00
July 14	81	60	0.00
July 15	67	61	1.26
July 16	66	58	0.00
July 17	69	58	0.05
July 18	84	60	0.00
July 19	84	58	0.00
July 20	85	61	0.00
July 21	91	69	0.00
July 22	89	69	0.02
July 23	96	68	0.00
July 24	81	60	0.00
July 25	79	53	0.00
July 26	75	55	0.00
July 27	81	57	0.01
July 28	82	57	0.06
July 29	76	51	0.06
July 30	77	55	0.05
July 31	69	51	0.00

August 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	69	57	0.12
August 2	72	62	0.00
August 3	81	63	0.01
August 4	74	63	0.43
August 5	74	58	0.00
August 6	81	60	0.02
August 7	78	63	0.00
August 8	76	65	0.70
August 9	88	63	0.00
August 10	85	59	0.00
August 11	80	51	0.00
August 12	71	59	0.00
August 13	79	63	0.00
August 14	91	60	0.00
August 15	82	63	0.00
August 16	87	65	0.00
August 17	93	68	0.00
August 18	85	61	0.00
August 19	85	55	0.00
August 20	82	60	0.06
August 21	82	58	0.00
August 22	81	51	0.00
August 23	86	51	0.00
August 24	70	52	0.20
August 25	67	49	0.00
August 26	72	46	0.00
August 27	78	47	0.00
August 28	65	45	0.70
August 29	88	62	0.00
August 30	83	62	0.00
August 31	68	60	0.12

September 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	78	56	0.00
September 2	77	48	0.00
September 3	84	57	0.00
September 4	80	52	0.00
September 5	81	50	0.00
September 6	75	50	0.00
September 7	75	48	0.00
September 8	70	42	0.00
September 9	66	46	0.00
September 10	65	40	0.00
September 11	70	57	0.38
September 12	68	48	0.09
September 13	66	43	0.00
September 14	63	37	0.00
September 15	63	38	0.11
September 16	77	54	0.01
September 17	65	47	0.00
September 18	62	45	0.00
September 19	68	43	0.00
September 20	72	40	0.00
September 21	91	57	0.00
September 22	73	51	0.00
September 23	65	43	0.00
September 24	65	34	0.00
September 25	72	42	0.00
September 26	58	38	0.00
September 27	63	34	0.00
September 28	65	44	0.00
September 29	65	39	0.00
September 30	65	35	0.00

October 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	65	53	0.01
October 2	69	45	0.00
October 3	56	39	0.00
October 4	56	39	0.34
October 5	60	50	0.06
October 6	55	51	0.87
October 7	65	44	0.00
October 8	56	37	0.00
October 9	54	33	0.00
October 10	67	38	0.00
October 11	60	35	0.00
October 12	62	42	0.00
October 13	71	53	0.00
October 14	63	51	1.10
October 15	58	31	0.00
October 16	50	26	0.00
October 17	49	26	0.00
October 18	55	23	0.00
October 19	60	38	0.14
October 20	53	34	0.15
October 21	63	31	0.00
October 22	72	37	0.00
October 23	76	38	0.09
October 24	47	30	0.00
October 25	54	29	0.00
October 26	61	49	0.22
October 27	57	31	0.24
October 28	62	29	0.01
October 29	53	34	0.00
October 30	41	27	0.00
October 31	63	32	0.00

November 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	52	34	0.00	0.0
November 2	63	32	0.00	0.0
November 3	61	30	0.00	0.0
November 4	51	33	0.00	0.0
November 5	57	37	0.00	0.0
November 6	54	34	0.00	0.0
November 7	53	40	0.05	0.0
November 8	48	31	0.02	0.0
November 9	54	29	0.00	0.0
November 10	52	34	0.00	0.0
November 11	53	33	0.00	0.0
November 12	46	28	0.00	0.0
November 13	41	21	0.00	0.0
November 14	60	41	0.00	0.0
November 15	56	36	0.00	0.0
November 16	47	23	0.00	0.0
November 17	48	19	0.27	0.0
November 18	67	36	0.39	0.0
November 19	54	30	0.00	0.0
November 20	40	25	0.00	0.0
November 21	29	20	0.03	0.6
November 22	29	15	0.00	0.0
November 23	31	7	0.03	0.3
November 24	36	28	0.95	0.3
November 25	35	20	0.00	0.0
November 26	27	13	0.00	0.0
November 27	20	10	0.10	1.9
November 28	32	15	0.03	0.5
November 29	41	15	0.04	0.0
November 30	48	30	0.35	0.0

December 1978 Portland Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	36	19	0.00	0.0
December 2	42	19	0.00	0.0
December 3	22	8	0.25	1.7
December 4	45	19	0.15	0.1
December 5	45	31	0.00	0.0
December 6	53	29	0.00	0.0
December 7	45	25	0.00	0.0
December 8	43	35	0.46	0.0
December 9	41	26	0.52	5.9
December 10	26	7	0.04	0.6
December 11	21	-4	0.00	0.0
December 12	27	2	0.00	0.0
December 13	37	11	0.00	0.0
December 14	35	19	0.00	0.0
December 15	32	18	0.00	0.0
December 16	41	16	0.00	0.0
December 17	42	26	0.26	0.0
December 18	28	11	0.00	0.0
December 19	20	9	0.00	0.0
December 20	29	9	0.00	0.0
December 21	40	22	0.30	3.2
December 22	30	12	0.00	0.0
December 23	40	12	0.00	0.0
December 24	35	12	0.00	0.0
December 25	42	26	1.12	7.4
December 26	35	18	0.00	0.0
December 27	30	17	0.00	0.0
December 28	30	16	0.00	0.0
December 29	30	13	0.00	0.0
December 30	36	14	0.00	0.0
December 31	38	22	0.05	0.0

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Weather Station Details

Years	Station	Coordinates
1940–2024	Portland International JetPort	location
1871–1940	Portland	location