August weather forecast and climate
Bethlehem, NH

The last month of the summer, August, is another warm month in Bethlehem, New Hampshire, with average temperature varying between 52.5°F (11.4°C) and 74.1°F (23.4°C).

Temperature

In Bethlehem, New Hampshire, the average high-temperature in August is practically the same as in July - a still warm 74.1°F (23.4°C). In August, the average low-temperature is 52.5°F (11.4°C).

Humidity

In August, the average relative humidity in Bethlehem is 80%.

Rainfall

In Bethlehem, during 16.9 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 164.3 rainfall days, and 29.45" (748mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Bethlehem.

Daylight

In August, the average length of the day is 14h.

Sunshine

The month with the most sunshine is August, with an average of 9.9h of sunshine.

UV index

The average daily maximum UV index in Bethlehem, New Hampshire, is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: In August, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in August in Bethlehem?

The average high-temperature, in August, is 74.1°F (23.4°C), while the average low-temperature is 52.5°F (11.4°C).

What is the average humidity in August in Bethlehem?

The average relative humidity in August is 80%.

How many days does it rain in August in Bethlehem?

In Bethlehem, in August, it is raining for 16.9 days, with typically 2.2" (56mm) of accumulated precipitation.

When it does not snow in Bethlehem?

In Bethlehem, New Hampshire, snow does not fall in June through September.

How many hours of daylight does Bethlehem have in August?

In Bethlehem, New Hampshire, the average length of the day in August is 14h.

What month has the most sunshine in Bethlehem?

The month with the most sunshine is August, with an average of 9.9h of sunshine.

How long on average sun shines in August in Bethlehem?

In August, the average sunshine in Bethlehem, New Hampshire, is 9.9h.

What is the UV index reading in August in Bethlehem?

In August, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in August - Bethlehem, NH
  • Average high temperature in August: 23.4°C

The warmest month (with the highest average high temperature) is July (24.6°C).
The month with the lowest average high temperature is January (-5.3°C).

  • Average low temperature in August: 11.4°C

The month with the highest average low temperature is July (12.3°C).
The coldest month (with the lowest average low temperature) is January (-12.6°C).

Average pressure in August - Bethlehem, NH
  • Average pressure in August: 1014.6mbar

The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).

Average wind speed in August - Bethlehem, NH
  • Average wind speed in August: 7.3km/h

The windiest month (with the highest average wind speed) is April (10.5km/h).
The calmest month (with the lowest average wind speed) is August (7.3km/h).

Average humidity in August - Bethlehem, NH
  • Average humidity in August: 80%

Months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).

Average rainfall in August - Bethlehem, NH
  • Average rainfall in August: 56mm

The wettest month (with the highest rainfall) is October (74mm).
The driest month (with the least rainfall) is September (53mm).

Average rainfall days in August - Bethlehem, NH
  • Average rainfall days in August: 16.9 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 in August - Bethlehem, NH
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (345mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in August - Bethlehem, NH
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (21.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August / Average sunshine in August - Bethlehem, NH
  • Average daylight in August: 14h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in August: 9.9h

The month with the most sunshine is August (Average sunshine: 9.9h).
The month with the least sunshine is February (Average sunshine: 3h).

Average sunshine days in August - Bethlehem, NH
  • Average sunshine days in August: 11.2 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 in August - Bethlehem, NH
  • Average UV index in August: 4

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in August - Bethlehem, NH
  • Average cloud cover in August: 39

The month with the most cloud cover is February (Cloud cover 71).
Months with the least cloud cover are July and August (Cloud cover 39).

Average visibility in August - Bethlehem, NH
  • Average visibility in August: 8km

Months with the highest visibility are April, May, June, July, August, October and November (8km).
Months with the lowest visibility are January and February (6km).