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Mount Laurel, New Jersey climate

Cfa Humid subtropical

Mount Laurel has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 87°F, while the coldest is January averaging around 25°F at night. Around 43 inches of precipitation falls each year, peaking in July (5.2 inches) and easing off in February (2.6 inches).

☀️ Summers

Hot

Highs near 87°F in July.

About 23 days a year above 90 °F

❄️ Winters

Cold

Lows near 25°F in January.

About 95 freezing nights a year

🌧️ Rain

Wet

About 43 in of rain a year.

Wettest in July

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

−0.4 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Mount Laurel climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	41	44	52	64	73	82	87	85	78	66	56	46
Avg temp (°F)	33	35	43	53	62	72	77	74	67	56	46	37
Avg low (°F)	25	26	33	42	51	61	66	64	57	46	36	29
Precipitation (in)	3.0	2.6	3.8	3.4	3.0	3.7	5.2	4.4	3.4	3.7	3.0	3.7

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	41	44	52	64	73	82
Avg temp (°F)	33	35	43	53	62	72
Avg low (°F)	25	26	33	42	51	61
Precipitation (in)	3.0	2.6	3.8	3.4	3.0	3.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	87	85	78	66	56	46
Avg temp (°F)	77	74	67	56	46	37
Avg low (°F)	66	64	57	46	36	29
Precipitation (in)	5.2	4.4	3.4	3.7	3.0	3.7

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	9	9	10	10	11	11	10	11	11	10	8	10
Days with high ≥ 90°F (days)	—	—	—	0.2	1	5	10	5	2	0.0	—	—
Days with low ≤ 32°F (days)	22	21	15	3	0.1	0.1	0.2	0.3	0.1	2	11	21

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	9	9	10	10	11	11
Days with high ≥ 90°F (days)	—	—	—	0.2	1	5
Days with low ≤ 32°F (days)	22	21	15	3	0.1	0.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	11	11	10	8	10
Days with high ≥ 90°F (days)	10	5	2	0.0	—	—
Days with low ≤ 32°F (days)	0.2	0.3	0.1	2	11	21

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	63	62	61	61	61	58	55	53	53	54	59	63
Clear days (≤ 30% cloud)	5	5	6	6	6	6	7	8	9	9	7	5
Partly cloudy days (30–70%)	11	10	11	10	12	12	12	12	10	10	11	11
Cloudy days (≥ 70%)	14	13	14	14	14	12	11	11	11	12	12	14
Relative humidity (%)	84	83	81	78	79	78	73	73	74	77	80	84
Wind speed (mph)	5.1	5.4	5.6	5.1	4.2	3.7	3.4	3.3	3.7	4.0	4.2	4.5

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	63	62	61	61	61	58
Clear days (≤ 30% cloud)	5	5	6	6	6	6
Partly cloudy days (30–70%)	11	10	11	10	12	12
Cloudy days (≥ 70%)	14	13	14	14	14	12
Relative humidity (%)	84	83	81	78	79	78
Wind speed (mph)	5.1	5.4	5.6	5.1	4.2	3.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	55	53	53	54	59	63
Clear days (≤ 30% cloud)	7	8	9	9	7	5
Partly cloudy days (30–70%)	12	12	10	10	11	11
Cloudy days (≥ 70%)	11	11	11	12	12	14
Relative humidity (%)	73	73	74	77	80	84
Wind speed (mph)	3.4	3.3	3.7	4.0	4.2	4.5

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at S Jersey Rgnl AP (NOAA GHCN station USW00093780), about 4 km from the city centre.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →