South Kingstown climate — normals and trends
South Kingstown (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 10.7 °C and it receives 1,152 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 (22.0 °C on average) and the coldest is January (-0.5 °C). Rainfall peaks in December.
South Kingstown averages 73 frost days, 2 hot days (≥ 30 °C) and 118 rainy days per year.
South Kingstown has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 82 to 64 per year over the period.
The hottest day of the period reached 34.4 °C (on 2 August 1975) and the coldest -21.8 °C (on 13 February 1967).
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
South KingstownRhode Island
- coords
- 41.45°, -71.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.7°C
Average daily high
13.7°C
Average daily low
7.8°C
Annual rainfall
1,152mm
Sunshine / day
8.9h
Mean relative humidity
74%
Average peak wind
21.4km/h
Seasonal range
22.5°C
Frost days (< 0 °C)
73 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
118 d/yr
Annual snowfall
71.7 cm
Average feels-like high
11.9 °C
Average feels-like low
4.8 °C
Average peak gust
41.9 km/h
Tropical nights (≥ 20 °C)
28 d/yr
Solar radiation
14.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.36 · 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
34.4 °C
2 August 1975
Coldest day
-21.8 °C
13 February 1967
Wettest day
117 mm
26 September 2008
Windiest day
73.1 km/h
12 September 1960
Strongest gust
140.0 km/h
12 September 1960
Hottest feels-like
40.5 °C
26 August 1948
Coldest feels-like
-29.4 °C
14 February 2016
Snowiest day
37.7 cm
4 February 1961
Sunniest day
14.7 h
12 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 | 1.8 °C | -0.9 °C | 51 mm | -51 mm |
| Feb | 3.3 °C | +0.1 °C | 86 mm | -6 mm |
| Mar | 8.7 °C | +2.3 °C | 113 mm | +5 mm |
| Apr | 13.0 °C | +1.7 °C | 104 mm | +3 mm |
| May | 17.0 °C | +0.6 °C | 149 mm | +55 mm |
| Jun | 22.9 °C | +1.5 °C | 42 mm | -40 mm |
| Jul | 26.3 °C | +1.4 °C | 74 mm | -4 mm |
| Aug | 24.1 °C | -0.4 °C | 60 mm | -33 mm |
| Sep | 22.0 °C | +0.8 °C | 55 mm | -36 mm |
| Oct | 16.6 °C | +0.5 °C | 116 mm | +20 mm |
| Nov | 10.6 °C | -0.2 °C | 62 mm | -44 mm |
| Dec | 4.1 °C | -1.4 °C | 87 mm | -24 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 South Kingstown?
South Kingstown has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.7 °C and it receives 1,152 mm of precipitation per year.
What is the hottest day ever recorded in South Kingstown?
The hottest day measured in South Kingstown between 1940 and 2025 was 2 August 1975, reaching 34.4 °C.
What is the coldest day in South Kingstown?
The coldest day measured in South Kingstown between 1940 and 2025 was 13 February 1967, at -21.8 °C.
Does it snow in South Kingstown?
Yes. South Kingstown gets on average 71.7 cm of snow per year and has around 73 frost days.
Has the climate of South Kingstown warmed?
Yes: South Kingstown warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in South Kingstown?
The wettest day measured in South Kingstown between 1940 and 2025 was 26 September 2008, with 117 mm of rain in 24 hours.
What was the windiest day in South Kingstown?
The windiest day measured in South Kingstown between 1940 and 2025 was 12 September 1960, with winds reaching 73.1 km/h.
What is the warmest month in South Kingstown?
The warmest month in South Kingstown is July (22.0 °C on average); the coldest is January (-0.5 °C).
How much does it rain in South Kingstown?
South Kingstown receives on average 1,152 mm of precipitation per year, spread over about 118 rainy days.
Is it sunny in South Kingstown?
South Kingstown 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 South Kingstown?
The heaviest 24-hour snowfall measured in South Kingstown between 1940 and 2025 was 4 February 1961, with 37.7 cm.
Are there tropical nights in South Kingstown?
Yes: South Kingstown has on average 28 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in South Kingstown?
In South Kingstown, between 1940 and 2025, the highest apparent temperature reached 40.5 °C on 26 August 1948, and the lowest was -29.4 °C on 14 February 2016.
Compare South Kingstown with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around South Kingstown