Lawrenceville weather in September 2025

The temperatures in Lawrenceville in September are comfortable with low of 18°C and and high up to 29°C.

You can expect about 3 to 8 days of rain in Lawrenceville during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Lawrenceville in September 2025.

If you’re planning to visit Lawrenceville in the near future, we highly recommend that you review the 14 day weather forecast for Lawrenceville before you arrive.

Temperatures

29° / 18°

Rainy Days

Snowy Days

Dry Days

Rainfall

158

Sun Hours

10.2

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
	1 31° /19°	2 28° /18°	3 29° /19°	4 30° /19°	5 30° /20°	6 30° /20°
7 31° /20°	8 29° /20°	9 28° /18°	10 28° /17°	11 28° /18°	12 27° /19°	13 29° /18°
14 24° /19°	15 26° /18°	16 26° /18°	17 29° /17°	18 27° /17°	19 28° /18°	20 30° /19°
21 29° /20°	22 30° /20°	23 28° /17°	24 29° /16°	25 28° /18°	26 28° /18°	27 26° /17°
28 26° /16°	29 28° /16°	30 27° /17°

Explore the weather in Lawrenceville in other months

Lawrenceville annual weather

Month	Temperatures	Rainy Days	Dry Days	Snowy Days	Rainfall	Weather	More details
January	10° / 2°	8	22	2	140 mm	Awful	Lawrenceville in January
February	13° / 4°	8	19	2	169 mm	Awful	Lawrenceville in February
March	17° / 7°	9	22	1	158 mm	Ok	Lawrenceville in March
April	22° / 11°	7	23	0	174 mm	Ok	Lawrenceville in April
May	27° / 16°	9	22	0	189 mm	Good	Lawrenceville in May
June	31° / 20°	8	22	0	169 mm	Ok	Lawrenceville in June
July	33° / 21°	10	21	0	207 mm	Ok	Lawrenceville in July
August	32° / 21°	9	22	0	217 mm	Ok	Lawrenceville in August
September	29° / 18°	5	25	0	158 mm	Good	Lawrenceville in September
October	23° / 12°	5	26	0	107 mm	Perfect	Lawrenceville in October
November	16° / 7°	5	25	0	127 mm	Good	Lawrenceville in November
December	12° / 5°	7	23	1	168 mm	Bad	Lawrenceville in December