September weather forecast and climate
Litchfield, NH

The first month of the autumn, September, is still a pleasant month in Litchfield, New Hampshire, with average temperature varying between 53.8°F (12.1°C) and 72.5°F (22.5°C).

Temperature

In Litchfield, New Hampshire, the average high-temperature marginally drops, from a moderately hot 80.2°F (26.8°C) in August, to an agreeable 72.5°F (22.5°C). In Litchfield, in September, the average low-temperature is 53.8°F (12.1°C).

Humidity

The average relative humidity in September is 77%.

Rainfall

September is the month with the least rainfall. Rain falls for 7 days and accumulates 0.28" (7mm) of precipitation.

Snowfall

In Litchfield snow does not fall in June through September.

Daylight

In Litchfield, the average length of the day in September is 12.5h.

Sunshine

The average sunshine in Litchfield is 8.4h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Litchfield?

In Litchfield, in September, the average high-temperature is 72.5°F (22.5°C), and the average low-temperature is 53.8°F (12.1°C).

What is the average humidity in September in Litchfield?

In September, the average relative humidity is 77%.

How much does it rain in Litchfield in September?

In Litchfield, New Hampshire, in September, during 7 rainfall days, 0.28" (7mm) of precipitation is typically accumulated.

What is the driest month in Litchfield?

September is the month with the least rainfall. Rain falls for 7 days and accumulates 0.28" (7mm) of precipitation.

Does it snow in Litchfield in September?

In Litchfield, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Litchfield?

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

What is the average length of the day in September in Litchfield?

In Litchfield, New Hampshire, the average length of the day in September is 12.5h.

How many hours of sunshine does Litchfield have in September?

In September, the average sunshine is 8.4h.

What is the UV index reading in September in Litchfield?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Litchfield, NH
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in September: 53.8°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in September - Litchfield, NH
  • Average pressure in September: 30.05"

The month with the highest atmospheric pressure is November (30.07").
The month with the lowest atmospheric pressure is June (29.92").

Average wind speed in September - Litchfield, NH
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September - Litchfield, NH
  • Average humidity in September: 77%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (71%).

Average rainfall in September - Litchfield, NH
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is November (0.79").
The driest month (with the least rainfall) is September (0.28").

Average rainfall days in September - Litchfield, NH
  • Average rainfall days in September: 7 days

The month with the highest number of rainy days is June (10.4 days).
The month with the least rainy days is January (3.5 days).

Average snowfall in September - Litchfield, NH
  • Average snowfall in September: 0"

Months with the highest snowfall are February and December (1.26").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in September - Litchfield, NH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (6.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Litchfield, NH
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in September: 8.4h

The month with the most sunshine is August (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days in September - Litchfield, NH
  • Average sunshine days in September: 21.6 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (17.3 days).

Average UV index in September - Litchfield, NH
  • Average UV index in September: 4

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September - Litchfield, NH
  • Average cloud cover in September: 37

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in September - Litchfield, NH
  • Average visibility in September: 5mi

Months with the highest visibility are January, March, April, November and December (6mi).
Months with the lowest visibility are February, May, June, July, August, September and October (5mi).