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Meridian, Mississippi climate

Cfa Humid subtropical

Meridian has a seasonal warm-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 93°F, while the coldest is January averaging around 36°F at night. Precipitation is fairly even year-round, totalling about 57 inches.

☀️ Summers

Hot

Highs near 93°F in July.

About 86 days a year above 90 °F

❄️ Winters

Chilly

Lows near 36°F in January.

About 48 freezing nights a year

🌧️ Rain

Wet

About 57 in of rain a year.

Wettest in March

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+1.5 °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

Meridian climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	59	64	71	78	85	91	93	93	89	80	69	61
Avg temp (°F)	48	52	59	65	73	80	83	82	77	67	56	50
Avg low (°F)	36	40	46	53	61	69	72	71	66	54	43	39
Precipitation (in)	5.6	5.4	5.7	5.6	4.2	4.6	5.1	4.4	3.2	3.9	4.2	5.3
Snowfall (in)	0.2	—	0.3	—	—	—	—	—	—	—	—	0.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	59	64	71	78	85	91
Avg temp (°F)	48	52	59	65	73	80
Avg low (°F)	36	40	46	53	61	69
Precipitation (in)	5.6	5.4	5.7	5.6	4.2	4.6
Snowfall (in)	0.2	—	0.3	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	93	93	89	80	69	61
Avg temp (°F)	83	82	77	67	56	50
Avg low (°F)	72	71	66	54	43	39
Precipitation (in)	5.1	4.4	3.2	3.9	4.2	5.3
Snowfall (in)	—	—	—	—	—	0.1

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	10	10	9	9	11	12	10	7	7	8	10
Days with high ≥ 90°F (days)	—	—	—	0.2	6	18	24	23	13	2	—	—
Days with low ≤ 32°F (days)	14	9	4	0.3	—	—	—	—	—	0.5	7	13
Days with snowfall ≥ 1 in (days)	0.0	—	0.1	—	—	—	—	—	—	—	—	0.0

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	10	10	10	9	9	11
Days with high ≥ 90°F (days)	—	—	—	0.2	6	18
Days with low ≤ 32°F (days)	14	9	4	0.3	—	—
Days with snowfall ≥ 1 in (days)	0.0	—	0.1	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	12	10	7	7	8	10
Days with high ≥ 90°F (days)	24	23	13	2	—	—
Days with low ≤ 32°F (days)	—	—	—	0.5	7	13
Days with snowfall ≥ 1 in (days)	—	—	—	—	—	0.0

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	61	63	60	55	53	54	55	50	45	43	51	61
Clear days (≤ 30% cloud)	7	6	8	9	9	8	7	9	12	14	10	7
Partly cloudy days (30–70%)	9	8	9	9	10	12	14	13	10	8	9	9
Cloudy days (≥ 70%)	15	14	14	12	12	10	10	9	9	9	11	15
Relative humidity (%)	84	84	82	80	77	73	73	73	72	72	78	85
Wind speed (mph)	0.2	0.2	0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.2	0.2	0.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	61	63	60	55	53	54
Clear days (≤ 30% cloud)	7	6	8	9	9	8
Partly cloudy days (30–70%)	9	8	9	9	10	12
Cloudy days (≥ 70%)	15	14	14	12	12	10
Relative humidity (%)	84	84	82	80	77	73
Wind speed (mph)	0.2	0.2	0.1	0.1	0.1	0.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	55	50	45	43	51	61
Clear days (≤ 30% cloud)	7	9	12	14	10	7
Partly cloudy days (30–70%)	14	13	10	8	9	9
Cloudy days (≥ 70%)	10	9	9	9	11	15
Relative humidity (%)	73	73	72	72	78	85
Wind speed (mph)	0.1	0.2	0.2	0.2	0.2	0.2

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Meridian Key Fld (NOAA GHCN station USW00013865), about 6 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 →