Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Ronkonkoma (NY) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Ronkonkoma.
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Climate overview of Ronkonkoma
The climate in Ronkonkoma, New York State, United States of America, is marked by large temperature swings across the seasons, ranging from 28°C (82°F) in July to 4°C (39°F) in January.
Rain/snowfall is high, totalling around 1180 mm (46 in) per year. December is the wettest month and November the driest. The city also experiences warm summers and cold winters. The most sunshine falls in July, with an average of 9.0 hours of daily sunshine.
Ronkonkoma Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ronkonkoma - and find the best time to visit.
Monthly Temperature in Ronkonkoma
In Ronkonkoma, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 28°C (82°F) in July, the warmest time of the year, to a chilly 4°C (39°F) during cooler months like January.
At night, you can expect temperatures ranging from 20°C (68°F) in July to around -5°C (23°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Ronkonkoma
Ronkonkoma experiences significant rain/snowfall throughout the year, averaging 1180 mm (46 in) of precipitation annually. While rainfall varies throughout the year, each season offers its own charm. December brings wetter days averaging 133 mm (5.2 in) of precipitation, spread over 12 rainy days.
In contrast, the driest month November experiences a drier climate, with about 79 mm (3.1 in) of rainfall spread across 10 rainy days. For more details, please visit our Ronkonkoma Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Ronkonkoma
Seasonal changes in sunshine hours are quite dramatic in Ronkonkoma. While July receives considerable daily sunshine with up to 9.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: New York City, the United States of America (65 KM, 40 Miles).
Daily hours of sunshine
Data from: New York City, the United States of America (65 KM, 40 Miles).
Daily percentage of sunshine
Data from: New York City, the United States of America (65 KM, 40 Miles).
Humidity in Ronkonkoma by Month
The relative humidity is high throughout the year in Ronkonkoma.
The city experiences its highest humidity in September, reaching 68%. In April, the humidity drops to its lowest level at 55%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: New York City, the United States of America (65 KM, 40 Miles).
Best Time to Visit Ronkonkoma
Conditions in Ronkonkoma are generally most comfortable in May, July and September. They are typically least comfortable in January, February, March and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
cold
Mar
wet
Apr
good
May
excellent
Jun
very good
Jul
excellent
Aug
very good
Sep
excellent
Oct
very good
Nov
mixed
Dec
wet
- Best overall: May, July and September
- Warmest weather: July and August
- Most sunshine: May, June, July and August
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -5°C (23°F).
Frequently asked questions about the climate in Ronkonkoma
What is the best time to visit Ronkonkoma?
May, July and September typically offer the most optimal weather in Ronkonkoma. In contrast, January, February, March and December tend to have less optimal conditions. Ronkonkoma has warm summers and cold winters.
What temperatures can I expect in Ronkonkoma?
Daytime highs range from 4°C (39°F) in January to 28°C (82°F) in July. Nighttime lows range from -5°C (23°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Ronkonkoma get?
Annual rainfall is around 1180 mm (46 in). December is the wettest month with 133 mm (5.2 in), while November is the driest with 79 mm (3.1 in).
How sunny is Ronkonkoma?
Ronkonkoma receives around 2,544 hours of sunshine per year. July is the sunniest month with 271 hours, while December is the cloudiest with just 141 hours. Overall, Ronkonkoma enjoys abundant sunshine.
Ronkonkoma 3-Day Forecast
Ronkonkoma on the map
Ronkonkoma is highlighted - select any city to see its climate.
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