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Mooresville, North Carolina climate

Cfa Humid subtropical

Mooresville has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 31°C, while the coldest is January averaging around −2°C at night. Precipitation is fairly even year-round, totalling about 1109 mm. Snow is occasional (6 cm of snow per year on average).

☀️ Summers

Hot

Highs near 31°C in July.

About 35 days a year above 32 °C

❄️ Winters

Cold

Lows near −2°C in January.

About 69 freezing nights a year

🌧️ Rain

Wet

About 1109 mm of rain a year.

Wettest in July

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

−0.2 °C 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

Mooresville climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	10	12	17	22	26	30	31	30	27	22	16	12
Avg temp (°C)	4	6	10	15	20	24	26	25	21	15	9	6
Avg low (°C)	−2	0	3	9	14	18	20	20	16	9	3	0
Precipitation (mm)	88	75	104	94	87	109	117	95	97	75	80	89
Snowfall (cm)	4	0	0	—	—	—	—	—	—	—	—	2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	10	12	17	22	26	30
Avg temp (°C)	4	6	10	15	20	24
Avg low (°C)	−2	0	3	9	14	18
Precipitation (mm)	88	75	104	94	87	109
Snowfall (cm)	4	0	0	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	31	30	27	22	16	12
Avg temp (°C)	26	25	21	15	9	6
Avg low (°C)	20	20	16	9	3	0
Precipitation (mm)	117	95	97	75	80	89
Snowfall (cm)	—	—	—	—	—	2

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	8	8	9	7	8	8	8	8	7	6	6	7
Days with high ≥ 32°C (days)	—	—	—	0.1	1	8	14	9	3	0.2	—	—
Days with low ≤ 0°C (days)	18	15	8	1	0.1	—	—	—	—	1	9	17
Days with snowfall ≥ 2.5 cm (days)	0.4	0.2	—	—	—	—	—	—	—	—	—	0.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	8	8	9	7	8	8
Days with high ≥ 32°C (days)	—	—	—	0.1	1	8
Days with low ≤ 0°C (days)	18	15	8	1	0.1	—
Days with snowfall ≥ 2.5 cm (days)	0.4	0.2	—	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	8	8	7	6	6	7
Days with high ≥ 32°C (days)	14	9	3	0.2	—	—
Days with low ≤ 0°C (days)	—	—	—	1	9	17
Days with snowfall ≥ 2.5 cm (days)	—	—	—	—	—	0.2

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	57	59	59	56	57	56	58	56	51	46	50	58
Clear days (≤ 30% cloud)	9	6	7	8	8	6	6	7	10	12	11	8
Partly cloudy days (30–70%)	9	9	10	10	11	13	13	12	9	9	8	9
Cloudy days (≥ 70%)	13	13	13	12	12	11	12	12	11	10	11	14
Relative humidity (%)	81	80	79	77	75	72	69	70	71	73	75	80
Wind speed (km/h)	7.9	8.4	8.7	8.6	7.2	6.2	5.8	5.5	6.5	6.8	7.0	7.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	57	59	59	56	57	56
Clear days (≤ 30% cloud)	9	6	7	8	8	6
Partly cloudy days (30–70%)	9	9	10	10	11	13
Cloudy days (≥ 70%)	13	13	13	12	12	11
Relative humidity (%)	81	80	79	77	75	72
Wind speed (km/h)	7.9	8.4	8.7	8.6	7.2	6.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	58	56	51	46	50	58
Clear days (≤ 30% cloud)	6	7	10	12	11	8
Partly cloudy days (30–70%)	13	12	9	9	8	9
Cloudy days (≥ 70%)	12	12	11	10	11	14
Relative humidity (%)	69	70	71	73	75	80
Wind speed (km/h)	5.8	5.5	6.5	6.8	7.0	7.1

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Salisbury (NOAA GHCN station USC00317615), about 32 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 →