Home › Cities › United States › Louisiana › Laplace

Laplace, Louisiana climate

Cfa Humid subtropical

Laplace has a seasonal warm-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 92°F, while the coldest is January averaging around 43°F at night. Around 67 inches of precipitation falls each year, peaking in June (8.6 inches) and easing off in October (4.1 inches).

☀️ Summers

Hot

Highs near 92°F in July.

About 59 days a year above 90 °F

❄️ Winters

Cool

Lows near 43°F in January.

About 10 freezing nights a year

🌧️ Rain

Very wet

About 67 in of rain a year.

Wettest in June

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+1.4 °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

Laplace climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	62	67	72	79	85	89	92	92	88	81	71	65
Avg temp (°F)	53	57	62	69	76	81	83	83	80	71	61	55
Avg low (°F)	43	47	52	58	66	73	75	75	71	61	51	46
Precipitation (in)	5.9	4.4	4.9	5.5	5.9	8.6	7.1	5.7	5.8	4.1	4.3	5.0

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	62	67	72	79	85	89
Avg temp (°F)	53	57	62	69	76	81
Avg low (°F)	43	47	52	58	66	73
Precipitation (in)	5.9	4.4	4.9	5.5	5.9	8.6

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	92	92	88	81	71	65
Avg temp (°F)	83	83	80	71	61	55
Avg low (°F)	75	75	71	61	51	46
Precipitation (in)	7.1	5.7	5.8	4.1	4.3	5.0

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	7	5	6	4	5	9	9	8	6	4	5	5
Days with high ≥ 90°F (days)	—	—	—	0.2	3	12	17	17	9	0.8	—	—
Days with low ≤ 32°F (days)	4	2	0.8	—	—	—	—	—	—	—	0.7	3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	7	5	6	4	5	9
Days with high ≥ 90°F (days)	—	—	—	0.2	3	12
Days with low ≤ 32°F (days)	4	2	0.8	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	9	8	6	4	5	5
Days with high ≥ 90°F (days)	17	17	9	0.8	—	—
Days with low ≤ 32°F (days)	—	—	—	—	0.7	3

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	61	61	59	54	51	54	57	53	46	42	49	62
Clear days (≤ 30% cloud)	7	7	8	8	9	7	6	7	12	14	10	7
Partly cloudy days (30–70%)	9	8	10	11	13	13	14	15	10	9	10	9
Cloudy days (≥ 70%)	15	14	14	11	9	10	11	9	8	8	10	15
Relative humidity (%)	82	82	81	79	77	77	79	78	79	78	80	83
Wind speed (mph)	6.5	6.6	6.5	6.5	5.6	4.7	4.3	4.2	5.1	5.6	5.9	6.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	61	61	59	54	51	54
Clear days (≤ 30% cloud)	7	7	8	8	9	7
Partly cloudy days (30–70%)	9	8	10	11	13	13
Cloudy days (≥ 70%)	15	14	14	11	9	10
Relative humidity (%)	82	82	81	79	77	77
Wind speed (mph)	6.5	6.6	6.5	6.5	5.6	4.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	57	53	46	42	49	62
Clear days (≤ 30% cloud)	6	7	12	14	10	7
Partly cloudy days (30–70%)	14	15	10	9	10	9
Cloudy days (≥ 70%)	11	9	8	8	10	15
Relative humidity (%)	79	78	79	78	80	83
Wind speed (mph)	4.3	4.2	5.1	5.6	5.9	6.2

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Reserve (NOAA GHCN station USC00167767), about 10 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 →