September weather forecast
Pittsburg, NH

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Weather in September

September heralds the arrival of fall, evident in the subtle changes of the city's foliage. The dip in high temperatures to 65.3°F (18.5°C) and shorter daylight hours mark the transition from summer to fall. Despite the drop, weather in September in Pittsburg remains significantly comfortable for outdoor activities. The changing colors of leaves from green to red, orange, and yellow provide a picturesque landscape. With fairly consistent rainfall, September transforms Pittsburg into a vibrant artist's canvas of fall colors.

Temperature

Pittsburg's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's pleasant 72.3°F (22.4°C) to a refreshing 65.3°F (18.5°C). September generally records an average low-temperature of 45.3°F (7.4°C).

Humidity

In September, the average relative humidity in Pittsburg is 81%.

Rainfall

In Pittsburg, New Hampshire, during September, the rain falls for 13.3 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, in Pittsburg, there are 154.3 rainfall days, and 30.87" (784mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Pittsburg, New Hampshire, is 12h and 31min.
On the first day of the month, sunrise is at 6:08 am and sunset at 7:22 pm. On the last day of September, in Pittsburg, sunrise is at 6:43 am and sunset at 6:27 pm EDT.

Sunshine

In September, the average sunshine is 7.7h.

UV index

In September, the average daily maximum UV index in Pittsburg, New Hampshire, is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 3 during September translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Pittsburg in September?

The high-temperature, in September, in Pittsburg, is 65.3°F (18.5°C), while the low-temperature averages to 45.3°F (7.4°C).

What is the average humidity in September in Pittsburg?

In Pittsburg, New Hampshire, the average relative humidity in September is 81%.

How much does it rain in Pittsburg in September?

In Pittsburg, New Hampshire, during September, the rain falls for 13.3 days and regularly aggregates up to 2.64" (67mm) of precipitation.

When it does not snow in Pittsburg?

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

Does it snow in Pittsburg in September?

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

How many hours of daylight does Pittsburg have in September?

In Pittsburg, New Hampshire, the average day length in September is 12h and 31min.

What time are sunrise and sunset in September in Pittsburg?

On the first day of September, sunrise is at 6:08 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:27 pm EDT.

How long on average sun shines in September in Pittsburg?

In Pittsburg, the average sunshine duration in September is 7.7h.

How high is the UV index in September in Pittsburg?

In September, the average daily maximum UV index in Pittsburg is 3. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Pittsburg, NH

Average temperature in September - Pittsburg, NH
  • Average high temperature in September: 65.3°F

The warmest month (with the highest average high temperature) is July (74.5°F).
The month with the lowest average high temperature is January (21°F).

  • Average low temperature in September: 45.3°F

The month with the highest average low temperature is July (53.4°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).

Average pressure in September
Pittsburg, NH

Average pressure in September - Pittsburg, NH
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in September
Pittsburg, NH

Average wind speed in September - Pittsburg, NH
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in September
Pittsburg, NH

Average humidity in September - Pittsburg, NH
  • Average humidity in September: 81%

The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).

Average rainfall in September
Pittsburg, NH

Average rainfall in September - Pittsburg, NH
  • Average rainfall in September: 2.64"

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is February (2.01").

Average rainfall days in September
Pittsburg, NH

Average rainfall days in September - Pittsburg, NH
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (4.1 days).

Average snowfall in September
Pittsburg, NH

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

The month with the highest snowfall is January (12.4").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Pittsburg, NH

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

The month with the highest number of snowfall days is February (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Pittsburg, NH

Average daylight in September / Average sunshine in September - Pittsburg, NH
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 7h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 24min).
The months with the least sunshine are January and February (Average sunshine: 2h and 6min).

Average sunshine days in September
Pittsburg, NH

Average sunshine days in September - Pittsburg, NH
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (6.2 days).

Average UV index in September
Pittsburg, NH

Average UV index in September - Pittsburg, NH
  • Average UV index in September: 3

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

Average cloud cover in September
Pittsburg, NH

Average cloud cover in September - Pittsburg, NH
  • Average cloud cover in September: 46

The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 43).

Average visibility in September
Pittsburg, NH

Average visibility in September - Pittsburg, NH
  • Average visibility in September: 4mi

The months with the highest visibility are May, June and July (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October, November and December (4mi).

Pittsburg, New Hampshire, USA

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