Acworth climate — normals and trends
Acworth (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.0 °C and it receives 1,208 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (25.5 °C on average) and the coldest is January (5.5 °C). Rainfall peaks in March.
Acworth averages 43 frost days, 64 hot days (≥ 30 °C) and 127 rainy days per year.
Acworth has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.1 °C (on 30 June 2012) and the coldest -21.8 °C (on 21 January 1985).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
AcworthGeorgia
- coords
- 34.07°, -84.68°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.0°C
Average daily high
21.5°C
Average daily low
11.2°C
Annual rainfall
1,208mm
Sunshine / day
9.0h
Mean relative humidity
72%
Average peak wind
14.6km/h
Seasonal range
20.0°C
Frost days (< 0 °C)
43 d/yr
Hot days (≥ 30 °C)
64 d/yr
Rainy days (≥ 1 mm)
127 d/yr
Annual snowfall
6.2 cm
Average feels-like high
21.5 °C
Average feels-like low
10.0 °C
Average peak gust
34.9 km/h
Tropical nights (≥ 20 °C)
77 d/yr
Solar radiation
15.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.27 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
40.1 °C
30 June 2012
Coldest day
-21.8 °C
21 January 1985
Wettest day
123 mm
10 February 1981
Windiest day
55.3 km/h
5 October 1995
Strongest gust
140.4 km/h
5 October 1995
Hottest feels-like
44.3 °C
30 June 2012
Coldest feels-like
-28.5 °C
21 January 1985
Snowiest day
23.0 cm
13 March 1993
Sunniest day
13.9 h
17 June 2021
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 8.7 °C | -1.9 °C | 69 mm | -43 mm |
| Feb | 15.9 °C | +2.9 °C | 127 mm | +15 mm |
| Mar | 20.6 °C | +3.4 °C | 86 mm | -40 mm |
| Apr | 24.3 °C | +2.3 °C | 116 mm | +11 mm |
| May | 25.2 °C | -0.8 °C | 202 mm | +109 mm |
| Jun | 29.9 °C | +0.3 °C | 130 mm | +37 mm |
| Jul | 32.2 °C | +1.5 °C | 99 mm | -15 mm |
| Aug | 28.5 °C | -1.8 °C | 107 mm | +15 mm |
| Sep | 28.7 °C | +1.3 °C | 38 mm | -51 mm |
| Oct | 22.4 °C | +0.1 °C | 65 mm | -9 mm |
| Nov | 18.7 °C | +2.2 °C | 44 mm | -50 mm |
| Dec | 13.9 °C | +1.9 °C | 38 mm | -67 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Acworth?
Acworth has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.0 °C and it receives 1,208 mm of precipitation per year.
What is the hottest day ever recorded in Acworth?
The hottest day measured in Acworth between 1940 and 2025 was 30 June 2012, reaching 40.1 °C.
What is the coldest day in Acworth?
The coldest day measured in Acworth between 1940 and 2025 was 21 January 1985, at -21.8 °C.
Does it snow in Acworth?
Yes. Acworth gets on average 6.2 cm of snow per year and has around 43 frost days.
Has the climate of Acworth warmed?
Yes: Acworth warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Acworth?
The wettest day measured in Acworth between 1940 and 2025 was 10 February 1981, with 123 mm of rain in 24 hours.
What was the windiest day in Acworth?
The windiest day measured in Acworth between 1940 and 2025 was 5 October 1995, with winds reaching 55.3 km/h.
What is the warmest month in Acworth?
The warmest month in Acworth is July (25.5 °C on average); the coldest is January (5.5 °C).
How much does it rain in Acworth?
Acworth receives on average 1,208 mm of precipitation per year, spread over about 127 rainy days.
Is it sunny in Acworth?
Acworth gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Acworth?
The heaviest 24-hour snowfall measured in Acworth between 1940 and 2025 was 13 March 1993, with 23.0 cm.
Are there tropical nights in Acworth?
Yes: Acworth has on average 77 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Acworth?
In Acworth, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 30 June 2012, and the lowest was -28.5 °C on 21 January 1985.
Compare Acworth with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Acworth