Florence climate — normals and trends
Florence (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 17.4 °C and it receives 1,150 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 (26.8 °C on average) and the coldest is January (7.3 °C). Rainfall peaks in July.
Florence averages 35 frost days, 88 hot days (≥ 30 °C) and 126 rainy days per year.
Florence has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.0 °C (on 10 August 2007) and the coldest -16.5 °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
FlorenceSouth Carolina
- coords
- 34.20°, -79.76°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.4°C
Average daily high
23.1°C
Average daily low
12.4°C
Annual rainfall
1,150mm
Sunshine / day
9.3h
Mean relative humidity
70%
Average peak wind
16.4km/h
Seasonal range
19.5°C
Frost days (< 0 °C)
35 d/yr
Hot days (≥ 30 °C)
88 d/yr
Rainy days (≥ 1 mm)
126 d/yr
Annual snowfall
4.7 cm
Average feels-like high
23.3 °C
Average feels-like low
11.5 °C
Average peak gust
34.9 km/h
Tropical nights (≥ 20 °C)
97 d/yr
Solar radiation
16.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.25 · 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
42.0 °C
10 August 2007
Coldest day
-16.5 °C
21 January 1985
Wettest day
174 mm
8 October 2016
Windiest day
75.3 km/h
22 September 1989
Strongest gust
169.9 km/h
22 September 1989
Hottest feels-like
46.5 °C
30 June 2012
Coldest feels-like
-23.0 °C
21 January 1985
Snowiest day
25.8 cm
10 February 1973
Sunniest day
13.9 h
20 June 2025
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 | 10.8 °C | -2.1 °C | 42 mm | -43 mm |
| Feb | 17.8 °C | +2.9 °C | 35 mm | -51 mm |
| Mar | 22.6 °C | +3.7 °C | 70 mm | -26 mm |
| Apr | 26.5 °C | +2.6 °C | 59 mm | -18 mm |
| May | 28.0 °C | +0.3 °C | 141 mm | +54 mm |
| Jun | 33.0 °C | +2.1 °C | 85 mm | -24 mm |
| Jul | 34.0 °C | +2.1 °C | 149 mm | +7 mm |
| Aug | 29.2 °C | -1.8 °C | 137 mm | +1 mm |
| Sep | 30.0 °C | +1.6 °C | 62 mm | -46 mm |
| Oct | 22.5 °C | -1.1 °C | 167 mm | +92 mm |
| Nov | 20.6 °C | +1.9 °C | 25 mm | -41 mm |
| Dec | 13.9 °C | -0.4 °C | 71 mm | -11 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 Florence?
Florence has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 17.4 °C and it receives 1,150 mm of precipitation per year.
What is the hottest day ever recorded in Florence?
The hottest day measured in Florence between 1940 and 2025 was 10 August 2007, reaching 42.0 °C.
What is the coldest day in Florence?
The coldest day measured in Florence between 1940 and 2025 was 21 January 1985, at -16.5 °C.
Does it snow in Florence?
Yes. Florence gets on average 4.7 cm of snow per year and has around 35 frost days.
Has the climate of Florence warmed?
Yes: Florence warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Florence?
The wettest day measured in Florence between 1940 and 2025 was 8 October 2016, with 174 mm of rain in 24 hours.
What was the windiest day in Florence?
The windiest day measured in Florence between 1940 and 2025 was 22 September 1989, with winds reaching 75.3 km/h.
What is the warmest month in Florence?
The warmest month in Florence is July (26.8 °C on average); the coldest is January (7.3 °C).
How much does it rain in Florence?
Florence receives on average 1,150 mm of precipitation per year, spread over about 126 rainy days.
Is it sunny in Florence?
Florence gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
What is the biggest single-day snowfall in Florence?
The heaviest 24-hour snowfall measured in Florence between 1940 and 2025 was 10 February 1973, with 25.8 cm.
Are there tropical nights in Florence?
Yes: Florence has on average 97 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Florence?
In Florence, between 1940 and 2025, the highest apparent temperature reached 46.5 °C on 30 June 2012, and the lowest was -23.0 °C on 21 January 1985.
Compare Florence with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Florence