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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
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Lebanon, Connecticut, with an average temperature ranging between min 21.6°F (-5.8°C) and max 33.4°F (0.8°C). Lebanon's coldest weather arrives in January, when temperatures average a high of 33.4°F (0.8°C) and a low of 21.6°F (-5.8°C). Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Lebanon, Connecticut, with an average temperature varying between 22.5°F (-5.3°C) and 36.7°F (2.6°C). The transition from January to February brings an average high-temperature of a still wintry 36.7°F (2.6°C), barely different from January's 33.4°F (0.8°C). Weather in February »
Weather in March
March, the first month of the spring in Lebanon, is a frosty month, with an average temperature ranging between max 43.7°F (6.5°C) and min 29.7°F (-1.3°C). March witnesses a subtle temperature ascent, adjusting from an icy 36.7°F (2.6°C) in February to a frosty 43.7°F (6.5°C). Weather in March »
Weather in April
April is a moderate spring month in Lebanon, Connecticut, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 39.6°F (4.2°C). Lebanon's transition into April brings a rise in the average high-temperature, moving from a chilly 43.7°F (6.5°C) in March to a moderate 55.9°F (13.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Lebanon, Connecticut, with an average temperature fluctuating between 67.1°F (19.5°C) and 48.9°F (9.4°C). May's arrival brings a temperature shift, moving from a refreshing 55.9°F (13.3°C) in April to a comfortable 67.1°F (19.5°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Lebanon, Connecticut, with temperature in the range of an average low of 56.3°F (13.5°C) and an average high of 74.8°F (23.8°C). Observing a slight rise in June, the average high-temperature shifts from May's comfortable 67.1°F (19.5°C) to a moderately hot 74.8°F (23.8°C). Weather in June »
Weather in July
July, like June, in Lebanon, Connecticut, is a moderately hot summer month, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 63°F (17.2°C). In Lebanon, the peak temperatures are generally noted in July, averaging a high of 81.9°F (27.7°C) and a low of 63°F (17.2°C). The heat index value during July is evaluated at a tropical 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Lebanon, Connecticut, with an average temperature fluctuating between 62.2°F (16.8°C) and 80.2°F (26.8°C). August's onset records a minor alteration in the average high-temperature to a still moderately hot 80.2°F (26.8°C) from July's 81.9°F (27.7°C). Weather in August »
Weather in September
September, the first month of the autumn in Lebanon, is still a pleasant month, with an average temperature fluctuating between 73.2°F (22.9°C) and 55.4°F (13°C). Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a moderately hot 80.2°F (26.8°C) to an agreeable 73.2°F (22.9°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Lebanon, Connecticut, with an average temperature ranging between max 61°F (16.1°C) and min 46.4°F (8°C). The start of October signals a decrease in the average high-temperature, transitioning from an agreeable 73.2°F (22.9°C) in September to a refreshing 61°F (16.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Lebanon, is another chilly month, with temperature in the range of an average low of 36.1°F (2.3°C) and an average high of 49.1°F (9.5°C). In November, the meteorological conditions alter, with the average high-temperature shifting from a refreshing 61°F (16.1°C) in October to a frosty 49.1°F (9.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Lebanon, Connecticut, with an average temperature fluctuating between 28.6°F (-1.9°C) and 39.4°F (4.1°C). With December's onset, the weather shows a temperature decrease, transitioning from a frosty 49.1°F (9.5°C) in November to a wintry 39.4°F (4.1°C). Weather in December »
Updated: Jun 18, 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 month is the coldest?
Lebanon witnesses the coldest weather in January, with temperatures averaging a high of 33.4°F (0.8°C) and a low of 21.6°F (-5.8°C).
How much does it rain?
Throughout the year, there are 164.2 rainfall days, and 33.74" (857mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, November and December.
How many days does it snow?
Throughout the year, there are 31.6 snowfall days, and 15.98" (406mm) of snow is accumulated.
What is the month with the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What are the most humid months?
February and October, with an average relative humidity of 79%, are most humid months.
When does it snow the most?
March is the month with the most snowfall. Snow falls for 7.3 days and accumulates 4.41" (112mm) of snow.
When is Daylight Saving Time (DST) in Lebanon?
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.
What is the least humid month?
April is the least humid month, with an average relative humidity of 72%.
When it does not snow?
In Lebanon, snow does not fall in June through October.
When are the longest days?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What is the month with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What time of the year is the hottest?
Lebanon's July weather, with an average high temperature of 81.9°F (27.7°C) and an average low temperature of 63°F (17.2°C), tends to be the warmest of the year.
What month has the most sunshine?
With an average of 10.3h of sunshine, August has the most sunshine of the year.
What is the driest month?
September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 1.73" (44mm) of precipitation.
What is the rainiest month?
The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.46" (88mm) of precipitation.
What is the month with the shortest days in Lebanon?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
What is the month with the least sunshine?
With an average of 4.7h of sunshine, December has the least sunshine of the year.
Average temperature
Lebanon, CT
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.4°F).
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Lebanon, CT
- Average pressure in January:
30.02"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.04"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:
30.08"Hg - Average pressure in December:
30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Lebanon, CT
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.4mph - Average wind speed in November:
7.8mph - Average wind speed in December:
8.4mph
The windiest months (with the highest average wind speed) are January and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity
Lebanon, CT
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Lebanon, CT
- Average rainfall in January:
2.52" - Average rainfall in February:
2.4" - Average rainfall in March:
2.8" - Average rainfall in April:
3.15" - Average rainfall in May:
2.76" - Average rainfall in June:
2.99"
- Average rainfall in July:
3.19" - Average rainfall in August:
2.76" - Average rainfall in September:
1.73" - Average rainfall in October:
3.07" - Average rainfall in November:
2.91" - Average rainfall in December:
3.46"
The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days
Lebanon, CT
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
9.7 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
16.6 days
- Average rainfall days in July:
17 days - Average rainfall days in August:
16.4 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
14.2 days - Average rainfall days in November:
10.8 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).
Average snowfall
Lebanon, CT
- Average snowfall in January:
2.91" - Average snowfall in February:
4.33" - Average snowfall in March:
4.41" - Average snowfall in April:
0.31" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is March (4.41").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Lebanon, CT
- Average snowfall days in January:
8.3 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
7.3 days - Average snowfall days in April:
0.9 days - Average snowfall days in May:
0.2 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:
1.5 days - Average snowfall days in December:
5.5 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Lebanon, CT
- Average daylight in January:
9h and 4min - 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 3min - 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 1min - 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 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days
Lebanon, CT
- Average sunshine days in January:
16.2 days - Average sunshine days in February:
13 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
11.5 days - Average sunshine days in August:
11.1 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
15.2 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.8 days).
Average UV index
Lebanon, CT
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
Lebanon, CT
The months with the most cloud cover are February, March, May and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Lebanon, CT
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).