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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a freezing cold winter month in Jefferson, New York, with an average temperature ranging between max 26.1°F (-3.3°C) and min 14.4°F (-9.8°C). The lowest temperatures are recorded in January, with averages reaching a high of 26.1°F (-3.3°C) and a low of 14.4°F (-9.8°C). Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Jefferson, New York, with an average temperature varying between 29.1°F (-1.6°C) and 16°F (-8.9°C). February's climate shows a minor adjustment in average high-temperatures to a still subzero cold 29.1°F (-1.6°C) from January's 26.1°F (-3.3°C). Weather in February »
Weather in March
March, the first month of the spring in Jefferson, is a cold month, with an average temperature varying between 22.6°F (-5.2°C) and 37.4°F (3°C). March signals a minor shift in the average high-temperature, moving from February's subzero cold 29.1°F (-1.6°C) to a wintry 37.4°F (3°C). Weather in March »
Weather in April
April is a cool spring month in Jefferson, New York, with an average temperature fluctuating between 50.5°F (10.3°C) and 33.6°F (0.9°C). As March transitions into April, a change in temperatures is observed, with average highs moving from a wintry 37.4°F (3°C) to a fresh 50.5°F (10.3°C). Weather in April »
Weather in May
May, the last month of the spring in Jefferson, is an enjoyable month, with temperature in the range of an average high of 63.9°F (17.7°C) and an average low of 44.6°F (7°C). With the onset of May, Jefferson's average high-temperature sees a rise, moving from April's cool 50.5°F (10.3°C) to a refreshing 63.9°F (17.7°C). Weather in May »
Weather in June
June, the first month of the summer in Jefferson, is a pleasant month, with an average temperature ranging between min 51.3°F (10.7°C) and max 70.9°F (21.6°C). June's arrival brings a modest temperature shift, moving from an enjoyable 63.9°F (17.7°C) in May to a pleasant 70.9°F (21.6°C). Weather in June »
Weather in July
July in Jefferson, New York, is a moderately hot summer month, with an average temperature fluctuating between 56.8°F (13.8°C) and 77°F (25°C). July, known for its average high temperature of 77°F (25°C) and an average low temperature of 56.8°F (13.8°C), is the warmest month. Weather in July »
Weather in August
August, the last month of the summer in Jefferson, is also a moderately hot month, with an average temperature fluctuating between 54.5°F (12.5°C) and 74.5°F (23.6°C). With the onset of August, Jefferson's average high-temperature clocks in at a still warm 74.5°F (23.6°C), showing a minor fluctuation from the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Jefferson, is still a pleasant month, with an average temperature ranging between max 68°F (20°C) and min 48°F (8.9°C). With the onset of September, Jefferson experiences a modest temperature adjustment, with the average high-temperature gently receding from a warm 74.5°F (23.6°C) in August to an agreeable 68°F (20°C). Weather in September »
Weather in October
October, like September, in Jefferson, New York, is a cool autumn month, with an average temperature fluctuating between 54.5°F (12.5°C) and 39.9°F (4.4°C). With October's onset, the weather shows a temperature decrease, transitioning from an agreeable 68°F (20°C) in September to a fresh 54.5°F (12.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Jefferson, is another cold month, with an average temperature fluctuating between 28.6°F (-1.9°C) and 41.9°F (5.5°C). Jefferson, New York, observes a minor decrease in the average high-temperature with the arrival of November, falling from October's cool 54.5°F (12.5°C) to a wintry 41.9°F (5.5°C). Weather in November »
Weather in December
December, the first month of the winter in Jefferson, is also a wintry month, with an average temperature fluctuating between 32°F (0°C) and 21.7°F (-5.7°C). The start of December signals a decrease in the average high-temperature, transitioning from an icy 41.9°F (5.5°C) in November to a still cold 32°F (0°C). Weather in December »
Updated: Feb 13, 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
What are the coldest months in Jefferson?
January, with average temperatures reaching a high of 26.1°F (-3.3°C) and a low of 14.4°F (-9.8°C), is the coldest month in Jefferson.
What is the driest month in Jefferson?
January is the month with the least rainfall in Jefferson. Rain falls for 4.6 days and accumulates 1.5" (38mm) of precipitation.
How much does it rain in Jefferson?
In Jefferson, during the entire year, the rain falls for 150.7 days and collects up to 27.83" (707mm) of precipitation.
When does it snow in Jefferson?
Months with snowfall in Jefferson, New York, are January through May, October through December.
How many days does it snow in Jefferson?
In Jefferson, New York, during the entire year, snow falls for 98 days and aggregates up to 50.39" (1280mm) of snow.
What are the months with the lowest UV index in Jefferson?
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index.
What are the most humid months in Jefferson?
The months with the highest humidity are February and December, with an average relative humidity of 87%.
What is the month with the least sunshine in Jefferson?
With an average of 2.8h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST) in Jefferson?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Jefferson, New York, 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.
What is the least humid month in Jefferson?
The months with the lowest humidity are April through July, with an average relative humidity of 80%.
When it does not snow in Jefferson?
June through September are months without snowfall.
When are the longest days in Jefferson?
The month with the longest days in Jefferson, New York, is June, with an average of 15h and 12min of daylight.
What is the month with the highest UV index in Jefferson?
The months with the highest UV index are June through August, with an average maximum UV index of 5.
What time of the year is the hottest in Jefferson?
Jefferson's temperature records reveal July as the warmest month, marked by average highs of 77°F (25°C) and lows of 56.8°F (13.8°C).
What month has the most sunshine in Jefferson?
The month with the most sunshine in Jefferson is July, with an average of 9.8h of sunshine.
What is the wettest month in Jefferson?
The month with the most rainfall is August, when the rain falls for 16.9 days and typically aggregates up to 3.27" (83mm) of precipitation.
What is the snowiest month in Jefferson?
December is the month with the most snowfall in Jefferson. Snow falls for 18 days and accumulates 9.84" (250mm) of snow.
What is the month with the shortest days in Jefferson?
With an average of 9h and 6min of daylight, December has the shortest days of the year in Jefferson.
Average temperature
Jefferson, NY
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (26.1°F).
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure
Jefferson, NY
- Average pressure in January:
30.05"Hg - Average pressure in February:
30.03"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30"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:
30.06"Hg - Average pressure in October:
30.01"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
Jefferson, NY
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.3mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8.5mph - Average wind speed in May:
7mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.7mph - Average wind speed in October:
7.2mph - Average wind speed in November:
7.9mph - Average wind speed in December:
8.7mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Jefferson, NY
The months with the highest relative humidity are February and December (87%).
The months with the lowest relative humidity are April, May, June and July (80%).
Average rainfall
Jefferson, NY
- Average rainfall in January:
1.5" - Average rainfall in February:
1.57" - Average rainfall in March:
1.89" - Average rainfall in April:
2.52" - Average rainfall in May:
2.83" - Average rainfall in June:
2.83"
- Average rainfall in July:
3.03" - Average rainfall in August:
3.27" - Average rainfall in September:
2.01" - Average rainfall in October:
2.48" - Average rainfall in November:
1.85" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days
Jefferson, NY
- Average rainfall days in January:
4.6 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
9.6 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
19.3 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
18.7 days - Average rainfall days in August:
16.9 days - Average rainfall days in September:
12.7 days - Average rainfall days in October:
13 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
8.4 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (4.6 days).
Average snowfall
Jefferson, NY
- Average snowfall in January:
7.48" - Average snowfall in February:
8.15" - Average snowfall in March:
7.91" - Average snowfall in April:
6.22" - Average snowfall in May:
1.85" - Average snowfall in June:
0"
The month with the highest snowfall is December (9.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Jefferson, NY
- Average snowfall days in January:
19 days - Average snowfall days in February:
18.3 days - Average snowfall days in March:
17.8 days - Average snowfall days in April:
8.5 days - Average snowfall days in May:
1.8 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:
3.7 days - Average snowfall days in November:
10.9 days - Average snowfall days in December:
18 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Jefferson, NY
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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 6min).
- Average sunshine in January:
3h and 0min - Average sunshine in February:
2h and 5min - Average sunshine in March:
4h and 4min - Average sunshine in April:
6h and 4min - Average sunshine in May:
7h and 5min - Average sunshine in June:
8h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 2min - Average sunshine in September:
8h and 1min - Average sunshine in October:
4h and 4min - Average sunshine in November:
4h and 2min - Average sunshine in December:
3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days
Jefferson, NY
- Average sunshine days in January:
9.5 days - Average sunshine days in February:
7.5 days - Average sunshine days in March:
8.6 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
9.1 days - Average sunshine days in June:
10.1 days
- Average sunshine days in July:
9.7 days - Average sunshine days in August:
10.8 days - Average sunshine days in September:
15 days - Average sunshine days in October:
12.3 days - Average sunshine days in November:
13.2 days - Average sunshine days in December:
9.3 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (7.5 days).
Average UV index
Jefferson, NY
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover
Jefferson, NY
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility
Jefferson, NY
The months with the highest visibility are January, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February, March and September (4mi).
Jefferson, New York, USA
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