Updated October 2026
Roger Williams National Memorial Weather by Month
Roger Williams National Memorial is warmest in July, when the nearest NOAA climate station averages a high of 84°F and a low of 65°F, and coldest in January, with an average high of 38°F and an average low of 22°F. March is the wettest month, with about 4.9 inches of precipitation. Snowfall is heaviest in February, at about 11 inches.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 7.5 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Roger Williams National Memorial can differ from these, particularly with elevation.
Warmest month
Jul
84°F avg high
Coldest month
Jan
22°F avg low
Wettest month
Mar
4.9 in avg
Snowiest month
Feb
10.5 in avg
Longest days
Jun
15.0 h of daylight
Average weather at Roger Williams by month
| Month | Avg high | Avg low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 38°F | 22°F | 4.0 in | 10.3 in | 9.3 h |
| February | 41°F | 24°F | 3.4 in | 10.5 in | 10.4 h |
| March | 48°F | 30°F | 4.9 in | 6.4 in | 11.7 h |
| April | 59°F | 40°F | 4.3 in | 0.6 in | 13.1 h |
| May | 69°F | 49°F | 3.4 in | 0.0 in | 14.4 h |
| June | 78°F | 59°F | 3.8 in | 0.0 in | 15.0 h |
| July | 84°F | 65°F | 2.9 in | 0.0 in | 14.8 h |
| August | 82°F | 64°F | 3.6 in | 0.0 in | 13.7 h |
| September | 75°F | 57°F | 4.2 in | 0.0 in | 12.3 h |
| October | 64°F | 45°F | 4.2 in | 0.2 in | 10.8 h |
| November | 53°F | 36°F | 4.3 in | 1.0 in | 9.6 h |
| December | 43°F | 28°F | 4.7 in | 7.6 in | 9.0 h |
| Year total | 47.7 in | 36.6 in |
NOAA 1991–2020 climate normals from station USW00014765, 7.5 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Roger Williams is at that time of year.
Roger Williams weather by season
Winter: December to February
Average highs bottom out at 38°F in January, between 43°F in December and 41°F in February, with average lows between 22°F and 28°F. The average low is at or below freezing in all three months. Together the three months average 12.1 inches of precipitation, about 25% of the yearly total. Snowfall averages about 28 inches for the season. Daylight is at its shortest, about 9.0 hours in December.
Spring: March to May
Average highs climb from 48°F in March to 69°F in May, with average lows between 30°F and 49°F. The average low is at or below freezing in March. Together the three months average 12.6 inches of precipitation, about 26% of the yearly total. Snowfall averages about 7 inches for the season, most of it in March. Daylight lengthens from about 11.7 hours in March to 14.4 in May.
Summer: June to August
Average highs peak at 84°F in July, between 78°F in June and 82°F in August, with average lows between 59°F and 65°F. Together the three months average 10.3 inches of precipitation, about 22% of the yearly total and less than in any other season. Daylight is at its longest, about 15.0 hours in June.
Fall: September to November
Average highs fall from 75°F in September to 53°F in November, with average lows between 36°F and 57°F. Together the three months average 12.7 inches of precipitation, about 27% of the yearly total and more than in any other season. Snowfall averages about 1.2 inches for the season, most of it in November. Daylight shortens from about 12.3 hours in September to 9.6 in November.
What the National Park Service says about the weather
At Roger Williams National Memorial in Providence, the weather varies with the seasons. Spring and fall are mild, with temperatures in the 50s to 60s Fahrenheit and occasional rain. Summers are warm and humid, reaching the 70s to 80s, while winters are cold, often in the 30s and 40s, with chances of snow. Check the forecast before visiting and dress in layers for comfort.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Roger Williams
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 41.83°N, 71.41°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for Roger Williams National Memorial →
Weather and crowds together
July is both the warmest month and the busiest, with about 1.8× the visitors of the park's average month. January is the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Roger Williams National Memorial. For hotels, cabins and rentals close to the park, see where to stay near Roger Williams.
Where to stay near Roger Williams
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Top-rated places to stay near Roger Williams
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Frequently Asked Questions
July is the warmest month at Roger Williams National Memorial, with an average high of 84°F and an average low of 65°F. That is the 1991–2020 average at the nearest long-record NOAA station, 7.5 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at Roger Williams National Memorial, with an average low of 22°F and an average high of 38°F, based on NOAA 1991–2020 climate normals.
March is the wettest month, with about 4.9 inches of precipitation. July is the driest, at about 2.9 inches. The station records about 47.7 inches of precipitation in an average year.
Yes. The nearest long-record NOAA station, 7.5 miles from the park's reference point, averages about 37 inches of snow a year. February is the snowiest month, at about 11 inches. The station averages at least a tenth of an inch of snow in 7 of the 12 months.
Weather at nearby parks
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41 mi away · warmest in July (82°F)
41 mi away · warmest in July (82°F)
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USW00014765), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1979–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.