Dalton climate — normals and trends
Dalton (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.8 °C and it receives 1,252 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 (25.7 °C on average) and the coldest is January (4.9 °C). Rainfall peaks in March.
Dalton averages 48 frost days, 71 hot days (≥ 30 °C) and 124 rainy days per year.
Dalton has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The number of frost days there went from about 53 to 43 per year over the period.
The hottest day of the period reached 40.9 °C (on 30 June 2012) and the coldest -24.1 °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
DaltonGeorgia
- coords
- 34.77°, -84.97°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.8°C
Average daily high
21.4°C
Average daily low
10.9°C
Annual rainfall
1,252mm
Sunshine / day
8.9h
Mean relative humidity
71%
Average peak wind
13.9km/h
Seasonal range
20.8°C
Frost days (< 0 °C)
48 d/yr
Hot days (≥ 30 °C)
71 d/yr
Rainy days (≥ 1 mm)
124 d/yr
Annual snowfall
9.9 cm
Average feels-like high
21.3 °C
Average feels-like low
9.8 °C
Average peak gust
34.0 km/h
Tropical nights (≥ 20 °C)
73 d/yr
Solar radiation
15.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.29 · 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
40.9 °C
30 June 2012
Coldest day
-24.1 °C
21 January 1985
Wettest day
132 mm
5 September 2011
Windiest day
45.3 km/h
5 October 1995
Strongest gust
121.7 km/h
5 October 1995
Hottest feels-like
44.9 °C
30 June 2012
Coldest feels-like
-29.1 °C
21 January 1985
Snowiest day
36.5 cm
13 March 1993
Sunniest day
14.0 h
21 June 2003
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 | 8.1 °C | -1.7 °C | 64 mm | -61 mm |
| Feb | 15.0 °C | +2.6 °C | 117 mm | -6 mm |
| Mar | 20.7 °C | +3.8 °C | 88 mm | -50 mm |
| Apr | 24.2 °C | +2.3 °C | 156 mm | +41 mm |
| May | 24.8 °C | -1.2 °C | 241 mm | +139 mm |
| Jun | 30.5 °C | +0.6 °C | 117 mm | +32 mm |
| Jul | 33.1 °C | +2.0 °C | 75 mm | -27 mm |
| Aug | 29.9 °C | -0.8 °C | 80 mm | -2 mm |
| Sep | 29.4 °C | +1.6 °C | 49 mm | -41 mm |
| Oct | 23.0 °C | +0.6 °C | 95 mm | +20 mm |
| Nov | 18.1 °C | +2.0 °C | 67 mm | -34 mm |
| Dec | 13.2 °C | +1.9 °C | 47 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 Dalton?
Dalton has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.8 °C and it receives 1,252 mm of precipitation per year.
What is the hottest day ever recorded in Dalton?
The hottest day measured in Dalton between 1940 and 2025 was 30 June 2012, reaching 40.9 °C.
What is the coldest day in Dalton?
The coldest day measured in Dalton between 1940 and 2025 was 21 January 1985, at -24.1 °C.
Does it snow in Dalton?
Yes. Dalton gets on average 9.9 cm of snow per year and has around 48 frost days.
Has the climate of Dalton warmed?
Yes: Dalton warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dalton?
The wettest day measured in Dalton between 1940 and 2025 was 5 September 2011, with 132 mm of rain in 24 hours.
What was the windiest day in Dalton?
The windiest day measured in Dalton between 1940 and 2025 was 5 October 1995, with winds reaching 45.3 km/h.
What is the warmest month in Dalton?
The warmest month in Dalton is July (25.7 °C on average); the coldest is January (4.9 °C).
How much does it rain in Dalton?
Dalton receives on average 1,252 mm of precipitation per year, spread over about 124 rainy days.
Is it sunny in Dalton?
Dalton gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Dalton?
The heaviest 24-hour snowfall measured in Dalton between 1940 and 2025 was 13 March 1993, with 36.5 cm.
Are there tropical nights in Dalton?
Yes: Dalton has on average 73 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dalton?
In Dalton, between 1940 and 2025, the highest apparent temperature reached 44.9 °C on 30 June 2012, and the lowest was -29.1 °C on 21 January 1985.
Compare Dalton with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dalton