Rhode Island has an average annual temperature of
50.9°F
(across all 4 cities) with approximately
1189 mm of annual precipitation
and average humidity of 80%.
The warmest city is Cranston
with average July highs of 91.6°F,
while Cranston
is the coldest with average January lows of 1.6°F.
This page covers 45 years of NASA POWER climate data (1981–2025)
including temperature, rainfall, humidity, wind speed, and solar radiation.
Aug is typically the warmest month across Rhode Island with average highs around
90.1°F, while
Jan is the coldest with average lows near
3.4°F.
Mar is the wettest month with approximately
115 mm of rainfall on average.
Month
Max Temp
Min Temp
Avg Temp
Rain (mm)
Humidity
Wind (m/s)
Solar (kWh/m²)
Jan
52.9°F
3.4°F
28°F
96
86%
1.3
1.80
Feb
52.2°F
5.9°F
28.9°F
87
85%
1.3
2.70
Mar
60.6°F
13.6°F
37.2°F
115
83%
1.2
3.90
Apr
70.3°F
27°F
48.7°F
108
80%
0.9
4.90
May
79.3°F
37.2°F
58.3°F
93
79%
0.7
5.70
Jun
85.5°F
46.8°F
66.2°F
96
79%
0.6
6.10
Jul
90.1°F
55.8°F
73°F
93
76%
0.6
6.00
Aug
90.1°F
54°F
72.1°F
93
74%
0.6
5.40
Sep
86.2°F
44.6°F
65.5°F
99
75%
0.7
4.40
Oct
76.3°F
33.3°F
54.9°F
112
78%
0.9
3.10
Nov
66.2°F
23°F
44.6°F
105
81%
1.0
2.10
Dec
57.7°F
12.2°F
35.1°F
112
85%
1.1
1.50
📈 Rhode Island Yearly Climate Trends
🌡️ Annual Temperature Trend
State-wide avg annual high & low · Last 10 years
📈 Rhode Island Long-Term Climate Trends (1981–2025)
This chart shows how Rhode Island's average temperatures have shifted across 45 years.
Use the range buttons to focus on recent decades or view the full historical record.
Data is averaged across all 4 cities in the state.
🌧️ Annual Precipitation Trend
State-wide avg annual precipitation · Last 10 years · mm/year
🔗 Explore Cities in Rhode Island
Browse detailed weather history, monthly averages, and 45-year climate trends for every city in Rhode Island.
Cranston is the wettest city in Rhode Island with approximately 1199 mm of annual precipitation on average. View Cranston weather history →
What is the warmest month in Rhode Island?▼
Aug is the warmest month across Rhode Island, with state-wide average highs of 90.1°F and average lows of 54°F.
How many cities in Rhode Island have weather data?▼
TownPillar has historical weather data for 4 cities in Rhode Island, covering 45 years of NASA POWER climate records from 1981 to 2025.
Which month has the most sunshine in Rhode Island?▼
Jun is the sunniest month across Rhode Island with an average solar radiation of 6.10 kWh/m²/day state-wide. This solar radiation data from NASA POWER is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability.
Where does this climate data come from?▼
All data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis data. It includes monthly temperature, precipitation, humidity, wind speed, and solar radiation at 0.5° × 0.625° spatial resolution.
📚 Data Source
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources). Data covers 45 years (1981–2025) across 4 cities in Rhode Island at monthly temporal resolution.