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Acworth, Georgia climate

Cfa Humid subtropical

Acworth has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 32°C, while the coldest is January averaging around −1°C at night. Precipitation is fairly even year-round, totalling about 1399 mm.

☀️ Summers

Hot

Highs near 32°C in July.

About 46 days a year above 32 °C

❄️ Winters

Cold

Lows near −1°C in January.

About 62 freezing nights a year

🌧️ Rain

Wet

About 1399 mm of rain a year.

Wettest in March

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+0.5 °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

Acworth climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	11	13	18	23	27	30	32	32	29	23	17	12
Avg temp (°C)	5	7	11	16	20	24	26	26	22	16	10	7
Avg low (°C)	−1	0	4	8	13	18	20	19	16	9	3	1
Precipitation (mm)	126	122	138	124	104	122	124	107	93	96	108	135
Snowfall (cm)	0	—	—	—	—	—	—	—	—	—	—	1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	11	13	18	23	27	30
Avg temp (°C)	5	7	11	16	20	24
Avg low (°C)	−1	0	4	8	13	18
Precipitation (mm)	126	122	138	124	104	122
Snowfall (cm)	0	—	—	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	32	32	29	23	17	12
Avg temp (°C)	26	26	22	16	10	7
Avg low (°C)	20	19	16	9	3	1
Precipitation (mm)	124	107	93	96	108	135
Snowfall (cm)	—	—	—	—	—	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	10	10	8	7	7	8	10
Days with high ≥ 32°C (days)	—	—	—	0.4	2	9	16	13	6	0.4	—	—
Days with low ≤ 0°C (days)	17	13	7	1	—	—	—	—	—	0.7	9	15
Days with snowfall ≥ 2.5 cm (days)	0.0	0.0	0.0	—	—	—	—	—	—	—	—	0.0

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	10	10	10	9	9	10
Days with high ≥ 32°C (days)	—	—	—	0.4	2	9
Days with low ≤ 0°C (days)	17	13	7	1	—	—
Days with snowfall ≥ 2.5 cm (days)	0.0	0.0	0.0	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	8	7	7	8	10
Days with high ≥ 32°C (days)	16	13	6	0.4	—	—
Days with low ≤ 0°C (days)	—	—	—	0.7	9	15
Days with snowfall ≥ 2.5 cm (days)	—	—	—	—	—	0.0

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	63	66	62	57	56	56	57	53	50	46	52	63
Clear days (≤ 30% cloud)	6	5	6	8	8	8	7	8	10	13	10	7
Partly cloudy days (30–70%)	9	8	10	9	10	11	13	12	9	8	9	8
Cloudy days (≥ 70%)	15	15	15	13	13	12	11	10	10	10	12	16
Relative humidity (%)	83	83	80	78	76	74	71	70	70	72	76	83
Wind speed (mph)	0.3	0.3	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.3	0.3	0.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	63	66	62	57	56	56
Clear days (≤ 30% cloud)	6	5	6	8	8	8
Partly cloudy days (30–70%)	9	8	10	9	10	11
Cloudy days (≥ 70%)	15	15	15	13	13	12
Relative humidity (%)	83	83	80	78	76	74
Wind speed (mph)	0.3	0.3	0.2	0.2	0.2	0.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	57	53	50	46	52	63
Clear days (≤ 30% cloud)	7	8	10	13	10	7
Partly cloudy days (30–70%)	13	12	9	8	9	8
Cloudy days (≥ 70%)	11	10	10	10	12	16
Relative humidity (%)	71	70	70	72	76	83
Wind speed (mph)	0.2	0.2	0.2	0.3	0.3	0.2

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Rome (NOAA GHCN station USC00097600), about 48 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 →