Warm-summer humid continental climate

Climate Newcastle - Maine

Annual high54ºF

Annual low37ºF

Precipitation48.19 inch

Month	HighºF	LowºF	Precipinch	Snowinch
Jan	29	13	3.83	21
Feb	33	17	3.43	15
Mar	41	24	4.41	13
Apr	53	35	4.22	4
May	65	44	4.12	0
Jun	73	53	3.87	0
Jul	78	59	3.43	0
Aug	76	58	3.11	0
Sep	68	51	3.94	0
Oct	56	41	4.38	0
Nov	46	32	5.10	3
Dec	35	21	4.35	16

JanHigh 29ºFLow 13ºFPrecip 3.83 inch
FebHigh 33ºFLow 17ºFPrecip 3.43 inch
MarHigh 41ºFLow 24ºFPrecip 4.41 inch
AprHigh 53ºFLow 35ºFPrecip 4.22 inch
MayHigh 65ºFLow 44ºFPrecip 4.12 inch
JunHigh 73ºFLow 53ºFPrecip 3.87 inch
JulHigh 78ºFLow 59ºFPrecip 3.43 inch
AugHigh 76ºFLow 58ºFPrecip 3.11 inch
SepHigh 68ºFLow 51ºFPrecip 3.94 inch
OctHigh 56ºFLow 41ºFPrecip 4.38 inch
NovHigh 46ºFLow 32ºFPrecip 5.10 inch
DecHigh 35ºFLow 21ºFPrecip 4.35 inch

Newcastle Climate Graph - Maine Climate Chart

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Climate summary

What is the average weather in Newcastle, Maine?

Newcastle experiences a humid continental climate, characterized by warm summers and cold winters. Precipitation is fairly wet overall, spread relatively evenly throughout the year, though fall is the wettest season. Winters bring significant snowfall, contributing to the area's very snowy conditions.

Based on climate normals · 1991–2020

Newcastle weather averages

Annual high54ºF

Annual low37ºF

Precipitation48.19 inch

Snowfall72 inch

Daily normals Newcastle - Maine - January

Day	HighºF	LowºF	Prec/moinch	Prec/yrinch	Snow/moinch	Snow/yrinch
Jan 1	31.5	17.0	0.13	0.13	0.60	0.60
Jan 2	31.3	16.7	0.26	0.26	1.20	1.20
Jan 3	31.1	16.5	0.40	0.40	1.80	1.80
Jan 4	31.0	16.2	0.53	0.53	2.40	2.40
Jan 5	30.8	16.0	0.66	0.66	3.00	3.00
Jan 6	30.7	15.8	0.79	0.79	3.70	3.70
Jan 7	30.5	15.6	0.92	0.92	4.30	4.30
Jan 8	30.4	15.4	1.04	1.04	5.00	5.00
Jan 9	30.3	15.2	1.16	1.16	5.60	5.60
Jan 10	30.1	15.0	1.29	1.29	6.30	6.30
Jan 11	30.0	14.9	1.41	1.41	6.90	6.90
Jan 12	29.9	14.7	1.54	1.54	7.50	7.50
Jan 13	29.9	14.6	1.66	1.66	8.10	8.10
Jan 14	29.8	14.4	1.79	1.79	8.80	8.80
Jan 15	29.7	14.3	1.91	1.91	9.40	9.40
Jan 16	29.7	14.2	2.03	2.03	10.00	10.00
Jan 17	29.6	14.1	2.15	2.15	10.60	10.60
Jan 18	29.6	14.0	2.27	2.27	11.20	11.20
Jan 19	29.6	14.0	2.39	2.39	11.80	11.80
Jan 20	29.6	13.9	2.51	2.51	12.40	12.40
Jan 21	29.6	13.9	2.63	2.63	13.00	13.00
Jan 22	29.6	13.8	2.76	2.76	13.60	13.60
Jan 23	29.6	13.8	2.88	2.88	14.30	14.30
Jan 24	29.7	13.8	3.01	3.01	14.90	14.90
Jan 25	29.7	13.8	3.13	3.13	15.60	15.60
Jan 26	29.8	13.9	3.25	3.25	16.30	16.30
Jan 27	29.8	13.9	3.37	3.37	17.00	17.00
Jan 28	29.9	14.0	3.49	3.49	17.60	17.60
Jan 29	30.0	14.0	3.60	3.60	18.30	18.30
Jan 30	30.1	14.1	3.71	3.71	18.90	18.90
Jan 31	30.2	14.2	3.83	3.83	19.60	19.60

Precipitation and snow add up through the month (/mo) and the year (/yr)

Weather history Newcastle - June 2026

Day	HighºF	LowºF	Precip.inch
Jun 1	64.0	44.1	0.00
Jun 2	70.0	45.0	0.00
Jun 3	75.0	50.0	0.00
Jun 4	84.0	50.0	0.00
Jun 5	80.1	55.0	0.00
Jun 6	70.0	53.1	0.00
Jun 7	64.0	52.0	0.45
Jun 8	75.9	39.9	0.00
Jun 9	82.9	54.0	0.00
Jun 10	82.9	53.1	0.00
Jun 11	81.0	61.0	0.19
Jun 12	81.0	62.1	0.23
Jun 13	82.0	57.9	0.00
Jun 14	81.0	68.0	0.00
Jun 15	73.9	62.1	0.31
Jun 16	73.0	55.9	0.00
Jun 17	78.1	54.0	0.00
Jun 18	71.1	55.0	0.22
Jun 19	75.0	55.9	0.03
Jun 20	71.1	59.0	0.00
Jun 21	75.9	55.9	0.00
Jun 22	73.0	55.9	0.00
Jun 23	69.1	57.0	1.73
Jun 24	77.0	59.0	0.00
Jun 25	78.1	59.0	0.00
Jun 26	72.0	59.0	0.12
Jun 27	73.9	59.0	0.00
Jun 28	79.0	55.0	0.00
Jun 29	80.1	57.9	0.83
Jun 30	81.0	60.1	0.00

–No data
–Not yet observed or received
TTrace, too small to measure

Observed extremes

Highest max temperature84.0ºF · Jun 4
Lowest max temperature64.0ºF · Jun 1
Highest min temperature68.0ºF · Jun 14
Lowest min temperature39.9ºF · Jun 8

Geo Newcastle - Maine

44.04°N, 69.54°W

Location

Country: United States
State: Maine
County: Lincoln
City: Newcastle
Zip Code: 4553
Elevation: 98 ft
Longitude: -69.54
Latitude: 44.04
ICAO: –
IATA: –

Map of Newcastle - Maine

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USGS National Map