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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 another subzero cold winter month in Bethlehem, New Hampshire, with temperature in the range of an average high of 22.5°F (-5.3°C) and an average low of 9.3°F (-12.6°C). The month of January, characterized by an average high of 22.5°F (-5.3°C) and a low of 9.3°F (-12.6°C), is recognized as the coldest. Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Bethlehem, New Hampshire, with an average temperature varying between 25.3°F (-3.7°C) and 11.1°F (-11.6°C). Bethlehem in February witnesses an average high-temperature of a still freezing cold 25.3°F (-3.7°C), indicating a slight variation from January's 22.5°F (-5.3°C). Weather in February »
Weather in March
March, the first month of the spring in Bethlehem, is an icy month, with an average temperature ranging between min 18.9°F (-7.3°C) and max 33.6°F (0.9°C). The shift from February to March is marked by a slight increase in the average high-temperature, moving from a subzero cold 25.3°F (-3.7°C) to a cold 33.6°F (0.9°C). Weather in March »
Weather in April
April in Bethlehem, New Hampshire, is a frosty spring month, with an average temperature varying between 30.6°F (-0.8°C) and 46.9°F (8.3°C). April brings a temperature change, with average high-temperatures moving from March's cold 33.6°F (0.9°C) to a frosty 46.9°F (8.3°C). Weather in April »
Weather in May
May, the last month of the spring in Bethlehem, is a refreshing month, with temperature in the range of an average high of 62.6°F (17°C) and an average low of 41.9°F (5.5°C). The shift from April to May is characterized by a clear increase in the average high-temperature, escalating from a frosty 46.9°F (8.3°C) to an enjoyable 62.6°F (17°C). Weather in May »
Weather in June
The first month of the summer, June, is a pleasant month in Bethlehem, New Hampshire, with an average temperature fluctuating between 69.4°F (20.8°C) and 48.4°F (9.1°C). The arrival of June witnesses a small shift in the average high-temperature, moving from an enjoyable 62.6°F (17°C) in May to an agreeable 69.4°F (20.8°C). Weather in June »
Weather in July
July is a warm summer month in Bethlehem, New Hampshire, with an average temperature fluctuating between 76.3°F (24.6°C) and 54.1°F (12.3°C). July is the month that records the highest temperatures, with averages ranging from a high of 76.3°F (24.6°C) to a low of 54.1°F (12.3°C). Weather in July »
Weather in August
August, the last month of the summer in Bethlehem, is another warm month, with an average temperature ranging between min 52.5°F (11.4°C) and max 74.1°F (23.4°C). Bethlehem sees the arrival of August with an average high-temperature of a still warm 74.1°F (23.4°C), indicating a subtle variation from July. Weather in August »
Weather in September
The first month of the autumn, September, is still a comfortable month in Bethlehem, New Hampshire, with temperature in the range of an average high of 66.9°F (19.4°C) and an average low of 46.8°F (8.2°C). September marks a gentle change in average high-temperature, declining from August's moderately hot 74.1°F (23.4°C) to a refreshing 66.9°F (19.4°C). Weather in September »
Weather in October
October, like September, in Bethlehem, New Hampshire, is a cool autumn month, with an average temperature varying between 52.9°F (11.6°C) and 38.5°F (3.6°C). The onset of October coincides with a reduction in the average high-temperature, falling from a comfortable 66.9°F (19.4°C) in September to a cool 52.9°F (11.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Bethlehem, is also a wintry month, with an average temperature varying between 27.5°F (-2.5°C) and 39.4°F (4.1°C). Bethlehem's progression into November involves a drop in the average high-temperature, receding from a fresh 52.9°F (11.6°C) in October to a cold 39.4°F (4.1°C). Weather in November »
Weather in December
December, the first month of the winter in Bethlehem, is still a freezing cold month, with an average temperature fluctuating between 28.2°F (-2.1°C) and 18.1°F (-7.7°C). The arrival of December corresponds with a shift in temperature, down from a wintry 39.4°F (4.1°C) in November to a subzero cold 28.2°F (-2.1°C). Weather in December »
Updated: Aug 7, 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 is the coldest month?
Bethlehem experiences its average lowest temperatures in January, reaching a peak of 22.5°F (-5.3°C) and a minimum of 9.3°F (-12.6°C).
What are the most humid months?
January and February, with an average relative humidity of 89%, are most humid months.
How many days does it rain?
In Bethlehem, during the entire year, the rain falls for 164.3 days and collects up to 29.45" (748mm) of precipitation.
When does it snow?
Months with snowfall are January through May, October through December.
How many days does it snow in Bethlehem?
In Bethlehem, New Hampshire, during the entire year, snow falls for 99.6 days and aggregates up to 57.68" (1465mm) of snow.
What are the months with the lowest UV index?
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 20.8 days and accumulates 13.58" (345mm) of snow.
What is the month with the least sunshine?
With an average of 3h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST)?
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?
The least humid month is May, with an average relative humidity of 76%.
When it does not snow?
In Bethlehem, New Hampshire, snow does not fall in June through September.
When are the longest days in Bethlehem?
The month with the longest days is June, with an average of 15h and 30min of daylight.
What is the month with the highest UV index?
June and July, with an average maximum UV index of 5, are months with the highest UV index.
What month is the hottest?
July, with an average high of 76.3°F (24.6°C) and a low of 54.1°F (12.3°C), signifies the warmest month of the year.
What month has the most sunshine?
The month with the most sunshine in Bethlehem is August, with an average of 9.9h of sunshine.
What is the driest month in Bethlehem?
September is the month with the least rainfall in Bethlehem. Rain falls for 12.5 days and accumulates 2.09" (53mm) of precipitation.
What is the wettest month?
October is the month with the most rainfall. Rain falls for 16.1 days and accumulates 2.91" (74mm) of precipitation.
What is the month with the shortest days?
With an average of 8h and 54min of daylight, December has the shortest days of the year.
Average temperature
Bethlehem, NH
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (22.5°F).
The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure
Bethlehem, NH
- Average pressure in January:
30.01"Hg - Average pressure in February:
29.99"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.04"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Bethlehem, NH
- Average wind speed in January:
6.1mph - Average wind speed in February:
6.1mph - Average wind speed in March:
6.2mph - Average wind speed in April:
6.5mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.5mph - Average wind speed in September:
4.8mph - Average wind speed in October:
5.3mph - Average wind speed in November:
5.7mph - Average wind speed in December:
5.8mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity
Bethlehem, NH
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).
Average rainfall
Bethlehem, NH
- Average rainfall in January:
2.36" - Average rainfall in February:
2.13" - Average rainfall in March:
2.17" - Average rainfall in April:
2.83" - Average rainfall in May:
2.68" - Average rainfall in June:
2.87"
- Average rainfall in July:
2.48" - Average rainfall in August:
2.2" - Average rainfall in September:
2.09" - Average rainfall in October:
2.91" - Average rainfall in November:
2.24" - Average rainfall in December:
2.48"
The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days
Bethlehem, NH
- Average rainfall days in January:
7.9 days - Average rainfall days in February:
6.7 days - Average rainfall days in March:
12.1 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
17.4 days - Average rainfall days in June:
18 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
16.9 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
16.1 days - Average rainfall days in November:
12.5 days - Average rainfall days in December:
10.6 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (6.7 days).
Average snowfall
Bethlehem, NH
- Average snowfall in January:
12.68" - Average snowfall in February:
13.58" - Average snowfall in March:
9.17" - Average snowfall in April:
5.75" - Average snowfall in May:
1.22" - Average snowfall in June:
0"
The month with the highest snowfall is February (13.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Bethlehem, NH
- Average snowfall days in January:
21.1 days - Average snowfall days in February:
20.8 days - Average snowfall days in March:
17.4 days - Average snowfall days in April:
8.2 days - Average snowfall days in May:
0.9 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:
2.7 days - Average snowfall days in November:
9.5 days - Average snowfall days in December:
19 days
The month with the highest number of snowfall days is January (21.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Bethlehem, NH
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 3min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
3h and 1min - Average sunshine in February:
3h and 0min - Average sunshine in March:
4h and 2min - Average sunshine in April:
6h and 4min - Average sunshine in May:
8h and 0min - Average sunshine in June:
8h and 3min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 1min - Average sunshine in November:
4h and 3min - Average sunshine in December:
3h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days
Bethlehem, NH
- Average sunshine days in January:
8.2 days - Average sunshine days in February:
5.9 days - Average sunshine days in March:
8 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
10.7 days - Average sunshine days in August:
11.2 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
10.9 days - Average sunshine days in November:
11.6 days - Average sunshine days in December:
8.7 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (5.9 days).
Average UV index
Bethlehem, NH
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover
Bethlehem, NH
The month with the most cloud cover is February (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility
Bethlehem, NH
The months with the highest visibility are April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, March, September and December (4mi).
Bethlehem, New Hampshire, USA
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