Narragansett climate — normals and trends
Narragansett (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.
Narragansett averages 73 frost days, 2 hot days (≥ 30 °C) and 118 rainy days per year.
Narragansett 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
NarragansettRhode Island
- coords
- 41.45°, -71.45°
- 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 Narragansett?
Narragansett 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 Narragansett?
The hottest day measured in Narragansett between 1940 and 2025 was 2 August 1975, reaching 34.4 °C.
What is the coldest day in Narragansett?
The coldest day measured in Narragansett between 1940 and 2025 was 13 February 1967, at -21.8 °C.
Does it snow in Narragansett?
Yes. Narragansett gets on average 71.7 cm of snow per year and has around 73 frost days.
Has the climate of Narragansett warmed?
Yes: Narragansett warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Narragansett?
The wettest day measured in Narragansett between 1940 and 2025 was 26 September 2008, with 117 mm of rain in 24 hours.
What was the windiest day in Narragansett?
The windiest day measured in Narragansett between 1940 and 2025 was 12 September 1960, with winds reaching 73.1 km/h.
What is the warmest month in Narragansett?
The warmest month in Narragansett is July (22.0 °C on average); the coldest is January (-0.5 °C).
How much does it rain in Narragansett?
Narragansett receives on average 1,152 mm of precipitation per year, spread over about 118 rainy days.
Is it sunny in Narragansett?
Narragansett 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 Narragansett?
The heaviest 24-hour snowfall measured in Narragansett between 1940 and 2025 was 4 February 1961, with 37.7 cm.
Are there tropical nights in Narragansett?
Yes: Narragansett has on average 28 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Narragansett?
In Narragansett, 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 Narragansett with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Narragansett