Climate and monthly weather forecastSmithfield, RI
Climate and monthly weather forecast
The climate of Smithfield
Smithfield, nestled in Rhode Island, USA, basks in a Marine west coast, warm summer climate as assigned by the Köppen climate classification system. Falling under the Cfb indicator, this type of climatic condition drapes Smithfield with rather mild and moderate temperatures throughout the year in conjunction with substantial rainfall spread over every month.Sudden and extreme temperature shifts are not typical for this location. In Smithfield, the temperature varies from 21.7°F (-5.7°C) in the coldest month to 82°F (27.8°C) in the warmest month, ensuring that the weather remains relatively pleasant all year round. This annual temperature range is attributed to Smithfield's geographical position, far away from the equator yet not close enough to the poles to experience harsh winters.
Even rainfall distribution characterizes Smithfield's climate. The town receives an average rainfall between 1.06" (27mm) and 2.52" (64mm) per month. The highest rainfall numbers are seen during spring with minimal degradation throughout the summer, and early autumn. Contrastingly, the later autumn period shows a significant drop in rainfall measurements.
Among the unique weather patterns, the consistently high humidity levels that prevail in this area deserve mention. Relative humidity ranges from 71% to 78% each month, making the air moist year-round. Another unique aspect is the lack of snowfall from June to October.
The best time to visit Smithfield
The pleasant climate ensures any time of the year can be suitable for a visit. However, the best time to visit Smithfield would be between May and September. During these months, the average daily temperature ranges from 66.9°F (19.4°C) to 82°F (27.8°C), perfect for outdoor pursuits and exploring the scenic beauty of the town. Despite the presence of moderate rain, these months offer the longest daylight hours, ranging from 14.6 hours in May to 14.9 hours in July.The worst time to visit Smithfield
The months between December and February tend to be less favorable for tourists due to low temperatures and increased snowfall frequency. December records the snowfall high of 2.28" (58mm) with temperatures between 21.7°F (-5.7°C) and 39.7°F (4.3°C), potentially limiting outdoor activities.Spring weather in Smithfield
Spring unfolds in Smithfield with gradually increasing temperatures, starting from 44.1°F (6.7°C) in March and rampant advancement to 66.9°F (19.4°C) by May. Concurrently, the town gets the highest amount of rainfall, making the environment lush and vibrant. This variation also witnesses the instances of snowfall become less frequent, leading to the full bloom of spring, characterized by longer sunshine and daylight hours.Summer weather in Smithfield
Summer months are marked by plentiful sunshine and minimal rainfall. The temperature hovers between 74.1°F (23.4°C) in June and 82°F (27.8°C) in July, gradually falling to 80.4°F (26.9°C) in August. Relative humidity persists, but the climate remains comfortable with the sunlight illuminating Smithfield for 15.2 hours in June. This period registers low wind speeds, falling to 6.2mph (10km/h) in August.Autumn weather in Smithfield
Autumn in Smithfield signals the arrival of shorter days and a drop in temperature. From 72.9°F (22.7°C) in September, the temperature plummets to 49.5°F (9.7°C) by November. Although rainfall is present throughout the season, the month of September reports the lowest annual rainfalls, at 1.06" (27mm). Autumn brings in gustier conditions with wind speeds picking up to 8.4mph (13.5km/h) in November.Winter weather in Smithfield
In the winter, Smithfield gets colder with temperatures fluctuating between 21.7°F (-5.7°C) in December and 36.9°F (2.7°C) by the end of February. The town also experiences increased snowfall during this period, making the landscape frosty and picturesque. Despite the cold climate, the relative humidity remains high, creating a feel of a winter wonderland.Weather in January
Smithfield, Rhode Island experiences its coldest period in January, with snowfall recorded with a total of 2.17" (55mm) over 6.3 days. This month is a time of heavy winter clothing and snow shoveling. Violent winter storms can sometimes lash the city with intense winds and freezing temperatures. Weather in January »Weather in February
February weather sees an incremental increase in temperature and sunlight as compared to January. Snowfall decreases to 2.87" (73mm) across 6 days. The month remains cold, nevertheless, the increasing daylight hours herald the gradual arrival of spring. Weather in February »Weather in March
March ushers in spring in Smithfield with warming temperatures and rainfall replacing snowfall. This month, snowfall drops to 3.03" (77mm) over 6.5 days. As the temperature begins to rise, the last vestiges of winter melt away. The city slowly turns green, flowers begin to bloom, and residents eagerly anticipate the warmer weather that lies ahead. Weather in March »Weather in April
Dramatically warmer than previous months, April sees a significant rise in temperatures and blooming flora. The last remnants of snowfall appear, averaging 1.3" (33mm) over the course of 1.3 days. As the landscape explodes with colour and growth, April showers can often bring moments of surprise weather. Weather in April »Weather in May
May marks the transition into summer, with warmer weather and increased daylight signaling the time for outdoor activities. The month notes a dramatic dip in snowfall with only 0.24" (6mm) registered over 0.1 days. As temperatures climb, the greenery around Smithfield flourishes, making the city a vibrant, colourful place. Weather in May »Weather in June
June in Smithfield signifies the full onset of summer, offering the longest daylight and sunshine hours of the year. This month sees a complete cessation of snowfall. Residents are seen enjoying the beaches, barbecuing, and engaging in various other outdoor activities. Weather in June »Weather in July
July is Smithfield’s warmest month, with temperatures often reaching up to 82°F (27.8°C), and a peak UV index of 6. Despite the increased heat and humidity, July weather remains ideal for outdoor activities. Frequent afternoon thunderstorms are seen, but they usually pass quickly, leaving clear skies for the rest of the day. Weather in July »Weather in August
August sees a slight drop in temperatures compared to July, though it remains a warm and vibrant month. Temperatures often hover around 80.4°F (26.9°C) with the climate marked by consistent patterns of humidity and rain. The warm nights and hot days make August perfect for those who enjoy swimming, boating, and other water sports. Weather in August »Weather in September
Autumn makes its arrival in September, bringing a noticeable drop in temperatures, especially at night. Rainfall minimizes to just 1.06" (27mm), the least amount of precipitation in a month in the entire year. A spectrum of warm, rustic colours drenches the city, as leaves begin their annual change. Weather in September »Weather in October
October continues the trend of cooling temperatures in Smithfield. The weather remains unpredictable, with possible rain and wind events. However, these conditions often result in stunning fall foliage, attracting countless photographers and nature lovers. Weather in October »Weather in November
November is significantly colder than the previous months, with substantial cloud cover and decreasing daylight hours. Snowfall recommences from this month with 0.63" (16mm) recorded over 1.5 days. The city transitions from the vibrant colours of fall to the stark, bare trees characteristic of the approach of winter. Weather in November »Weather in December
Finally, December marks the beginning of winter in Smithfield, with snowfall reaching a notable 2.28" (58mm) over 4.5 days. This month often witnesses the first real snow of the season. Muffled under a blanket of snow, the city embraces the festive mood, adorned with holiday decorations and twinkling lights. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Smithfield, RI
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure
Smithfield, RI
- Average pressure in January:
30.01"Hg - Average pressure in February:
30"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Smithfield, RI
- Average wind speed in January:
9.3mph - Average wind speed in February:
9.4mph - Average wind speed in March:
9.4mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.6mph - Average wind speed in June:
6.9mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.2mph - Average wind speed in September:
6.7mph - Average wind speed in October:
8mph - Average wind speed in November:
8.4mph - Average wind speed in December:
8.8mph
The windiest months (with the highest average wind speed) are February and March (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Smithfield, RI
The months with the highest relative humidity are February, June, September and October (78%).
The month with the lowest relative humidity is April (71%).
Average rainfall
Smithfield, RI
- Average rainfall in January:
1.89" - Average rainfall in February:
1.73" - Average rainfall in March:
2.17" - Average rainfall in April:
2.52" - Average rainfall in May:
1.89" - Average rainfall in June:
2.28"
- Average rainfall in July:
2.13" - Average rainfall in August:
1.81" - Average rainfall in September:
1.06" - Average rainfall in October:
2.17" - Average rainfall in November:
2.09" - Average rainfall in December:
2.24"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days
Smithfield, RI
- Average rainfall days in January:
7.1 days - Average rainfall days in February:
7.2 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
14.1 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
14.5 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
10.3 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
10.1 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is January (7.1 days).
Average snowfall
Smithfield, RI
- Average snowfall in January:
2.17" - Average snowfall in February:
2.87" - Average snowfall in March:
3.03" - Average snowfall in April:
1.3" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Smithfield, RI
- Average snowfall days in January:
6.3 days - Average snowfall days in February:
6 days - Average snowfall days in March:
6.5 days - Average snowfall days in April:
1.3 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
4.5 days
The month with the highest number of snowfall days is March (6.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Smithfield, RI
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 42min - Average sunshine in March:
5h and 48min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 12min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 18min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Smithfield, RI
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
15.5 days - Average sunshine days in June:
14.1 days
- Average sunshine days in July:
14.8 days - Average sunshine days in August:
15.9 days - Average sunshine days in September:
17.8 days - Average sunshine days in October:
16.4 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
16.7 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is April (13.6 days).
Average UV index
Smithfield, RI
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Smithfield, RI
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility
Smithfield, RI
The months with the highest visibility are January, February, March, April, May, October, November and December (6mi).
The months with the lowest visibility are June, July, August and September (5mi).





