Climate and monthly weather forecastMount Vernon, NY
Climate and monthly weather forecast
The climate of Mount Vernon
Bordering the northeastern side of the Bronx, Mount Vernon, New York, USA, is identified with a Cfa Köppen climate classification, which is a reflection of this city's humid subtropical conditions with no dry season. The climate data reveals a variety of shifts in weather parameters throughout the year.Temperature highs vary widely from an average high of 36.1°F (2.3°C) during the initial months of the year to a peak of 83.5°F (28.6°C) in July. As the colder months approach, at the end of the year, these highs begin to reduce again, settling around 41.9°F (5.5°C) in December. Lows follow a similar trend, starting from 25.7°F (-3.5°C) in January, moving to a yearly high of 69.4°F (20.8°C) in July, and returning to 32.5°F (0.3°C) by December. Some degree of moisture in the air is a constant factor, with relative humidity ranging from a low of 69% to a high of 76%.
Mount Vernon experiences rainfall throughout the year, with monthly averages from 2.01" (51mm) to 3.74" (95mm). While slight variations occur, snowfall is notable in winter, January reporting 1.61" (41mm) further increasing to 2.6" (66mm) by March while December shows 1.65" (42mm). Sunshine hours see an increment with each month from the beginning of the year, peaking in July at 10.5 hours a day, decreasing towards the end of the year. The year observes the lowest visibility in Mount Vernon at 6 miles that is fairly consistent.
The best time to visit Mount Vernon
The period between May and September offers the most ideal conditions for visiting Mount Vernon. During this time, daylight hours range from 14.5 to 15.1 hours, while sunshine extends from 8.7 to 10.5 hours daily, providing plenty of daylight to explore the town. This also coincides with optimal temperatures ranging from 67.8°F (19.9°C) to 81.9°F (27.7°C), with lows not exceeding 53.4°F (11.9°C). Despite the higher rainfall days, adequate sunlight and warmer temperatures make this period appealing to visitors, offering comfortable weather to explore the city's offerings.The worst time to visit Mount Vernon
Winter months, especially from December to February, might not be an optimal time for visitors. During this period, the city faces its coldest temperatures, with highs ranging from 36.1°F (2.3°C) to 50.9°F (10.5°C) and lows plunging to 25.7°F (-3.5°C), in January. Despite lower rainfall averages, this season observes snowfall, reaching up to 2.28" (58mm) in February. Daylight hours are also at their minimum with sunshine recorded for merely 4.9 hours in December, providing limited time for outdoor activities.Spring weather in Mount Vernon
Mount Vernon welcomes Spring with an uptick in temperatures. The period from March to May sees an average high rising from 46°F (7.8°C) to 67.8°F (19.9°C) and average lows enhancing from 33.8°F (1°C) to 53.4°F (11.9°C). Rainfall averages vary from 2.52" (64mm) in March to 2.83" (72mm) in May, marking a slightly wet spring. Despite this, daylight hours extend significantly from 12 hours in March reaching 14.5 hours by the end of May.Summer weather in Mount Vernon
Summers in Mount Vernon, from June to August, witness the highest temperatures. With average highs ranging from 76.5°F (24.7°C) in June to 81.9°F (27.7°C) in August and average lows lingering around 62.2°F (16.8°C) to 68.9°F (20.5°C), the weather remains pleasantly warm. This season experiences the year's highest rainfall, peaking at 3.74" (95mm) in July. Daylight hours, abundant, stretch from 15.1 hours in June to 13.8 hours in August.Autumn weather in Mount Vernon
The transition from summer to winter during September to November brings some moderate weather conditions. Temperature highs fall from 74.7°F (23.7°C) in September to 50.9°F (10.5°C) in November while lows start declining from 61.5°F (16.4°C) to reach 40.1°F (4.5°C). Rainfall during this period ranges from 2.32" (59mm) to 2.4" (61mm), with September observing the least rainfall.Winter weather in Mount Vernon
Winter sets in with freezing temperatures, recording an average high ranging from 50.9°F (10.5°C) in December to 36.1°F (2.3°C) in January. Average lows also drop dramatically from 32.5°F (0.3°C) in December to 25.7°F (-3.5°C) in January, before slightly rising again in February. Despite snowfalls being observed, rainfall is high during these months, particularly in December, recording at 3.43" (87mm).Weather in January
January in Mount Vernon, New York, is characterized by cold, moist air, and cloudy skies. Thermometers often document minimum temperatures dropping to 25.7°F (-3.5°C). The terrain wakes up to a fresh layer of snow with around five days registering flurries. Weather in January »Weather in February
Shifting from January to February, a slight increase is noted in the average temperature readings even though the city remains in the grip of the cold weather. The outdoors become slippery with an average of 2.28" (58mm) of snow settling on the ground. Weather in February »Weather in March
Welcoming spring, March in Mount Vernon sees cold transforming into cool with a thaw setting in. As temperatures climb to an average high of 46°F (7.8°C), snowfall begins to subside. Longer daylight hours offer more time to soak in the sun's warmth despite the mostly overcast sky. Weather in March »Weather in April
April presents a distinctive spring season in Mount Vernon with temperatures climbing towards a more comfortable range. This month witnesses a surge in rain with 2.64" (67mm) on average across 14.7 rain-soaked days. Being the season of bloom, the mild warmth drives away the frost, coaxing the flora to flourish. Weather in April »Weather in May
Mount Vernon’s weather in May sees a significant transition with temperatures reaching as high as 67.8°F (19.9°C). Contrasting the increase in warmth, May also becomes a comparatively wet month as rain frequency increases. The longer sunshine hours coupled with mildly high humidity levels prompt the greenery to thrive. Weather in May »Weather in June
June brings the warmth of summer to Mount Vernon, mark by sunny days and minimal precipitation. Compared to May, the rainfall slacks off slightly, making ways for more clear and sunny days. The city experiences the longest hours of daylight, giving residents ample time to enjoy the summer days outdoors. Weather in June »Weather in July
Reaching the peak of summer, July ices the cake as the city’s warmest month with temperatures reaching 83.5°F (28.6°C). It records 3.74" (95mm) of rainfall, the highest for any month, spread across about 18.2 days. Extended exposure to sunlight reinforces vibrant outdoor activities. Weather in July »Weather in August
August continues July's summery tune in Mount Vernon, with temperatures marginally stepping down from the peak. This month marks a gentle decrease on the rainfall chart that had been steady until now. Longer sunshine hours persist, enhancing outdoor fun activities. Weather in August »Weather in September
September greets Mount Vernon with the mellow rhythms of fall, characterized by a comforting coolness. This month displays a significant drop in temperature, making the city substantially cooler than August. The rainy days turn down a notch, allowing more sunshine to paint the town's canvas. Weather in September »Weather in October
October completely immerses Mount Vernon in the autumnal fresco with temperatures steeply declining to 63.3°F (17.4°C). A reminiscent chill permeates the air, replacing the fallen warmth. The twirling leaves of this colorful season occasionally find themselves under showers. Weather in October »Weather in November
November in Mount Vernon introduces the onset of winter, with temperatures bobbing between cool and cold, thus signaling the goodbye to autumn. It is in this month that the town receives its first dusting of snow, amounting to 0.08" (2mm). Weather in November »Weather in December
December fully immerses Mount Vernon in winter, painting the cityscape white with 1.65" (42mm) of snow. The cold intensifies, keeping residents indoors, huddled around sources of warmth. The festive month sees the shortest daylight hours, owing to the sun's low trajectory. Weather in December »Updated: Jul 8, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the month when Mount Vernon experiences its coldest temperatures, averaging a high of 36.1°F (2.3°C) and a low of 25.7°F (-3.5°C).
In Mount Vernon, during the entire year, the rain falls for 156.5 days and collects up to 33.19" (843mm) of precipitation.
January through April, November and December are months with snowfall.
In Mount Vernon, during the entire year, snow falls for 18.1 days and aggregates up to 8.43" (214mm) of snow.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
The most humid month is February, with an average relative humidity of 76%.
February is the month with the least rainfall. Rain falls for 8.8 days and accumulates 2.01" (51mm) of precipitation.
February has the least sunshine of the year, with an average of 4.8h of sunshine.
March is the month with the most snowfall. Snow falls for 3.5 days and accumulates 2.6" (66mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
In Mount Vernon, snow does not fall in May through October.
With an average of 15h and 6min of daylight, June has the longest days of the year.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
July, with its high-temperature average of 83.5°F (28.6°C) and a low-temperature average of 69.4°F (20.8°C), is the warmest month.
The month with the most rainfall is July, when the rain falls for 18.2 days and typically aggregates up to 3.74" (95mm) of precipitation.
The month with the most sunshine is July, with an average of 10.5h of sunshine.
August is the least humid month, with an average relative humidity of 69%.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Mount Vernon, NY
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36.1°F).
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure
Mount Vernon, NY
- Average pressure in January:
30.06"Hg - Average pressure in February:
30.03"Hg - Average pressure in March:
30.05"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:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Mount Vernon, NY
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.4mph - Average wind speed in March:
9.3mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.4mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.5mph - Average wind speed in November:
8.8mph - Average wind speed in December:
9.1mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity
Mount Vernon, NY
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (69%).
Average rainfall
Mount Vernon, NY
- Average rainfall in January:
2.05" - Average rainfall in February:
2.01" - Average rainfall in March:
2.52" - Average rainfall in April:
2.64" - Average rainfall in May:
2.83" - Average rainfall in June:
2.99"
- Average rainfall in July:
3.74" - Average rainfall in August:
3.31" - Average rainfall in September:
2.32" - Average rainfall in October:
2.95" - Average rainfall in November:
2.4" - Average rainfall in December:
3.43"
The wettest month (with the highest rainfall) is July (3.74").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days
Mount Vernon, NY
- Average rainfall days in January:
8 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
16.6 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
18.2 days - Average rainfall days in August:
16.5 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
11.4 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (8 days).
Average snowfall
Mount Vernon, NY
The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Mount Vernon, NY
- Average snowfall days in January:
5 days - Average snowfall days in February:
5 days - Average snowfall days in March:
3.5 days - Average snowfall days in April:
0.5 days - Average snowfall days in May:
0 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 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
3.4 days
The months with the highest number of snowfall days are January and February (5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Mount Vernon, NY
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - 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 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Mount Vernon, NY
- Average sunshine days in January:
18.8 days - Average sunshine days in February:
15.9 days - Average sunshine days in March:
16.7 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
13 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
10.7 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
17 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
16.7 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (10.7 days).
Average UV index
Mount Vernon, NY
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
Mount Vernon, NY
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility
Mount Vernon, NY
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
