September weather forecast
Lattimer, PA

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Weather in September

The first month of the autumn, September, is also an agreeable month in Lattimer, Pennsylvania, with an average temperature fluctuating between 52°F (11.1°C) and 71.6°F (22°C).

Temperature

The advent of September brings a slight shift in average high-temperature, moving from a warm 78.3°F (25.7°C) in August to an agreeable 71.6°F (22°C). Throughout the month of September, Lattimer sees a steady low-temperature average of 52°F (11.1°C).

Humidity

In September, the average relative humidity is 81%.

Rainfall

September is the month with the least rainfall. Rain falls for 13 days and accumulates 2.01" (51mm) of precipitation.

Snowfall

In Lattimer, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:47 pm EDT.

Sunshine

In Lattimer, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, the UV index of 4 transforms into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In Lattimer, in September, the average high-temperature is 71.6°F (22°C), and the average low-temperature is 52°F (11.1°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in September?

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

What is the driest month?

September is the month with the least rainfall. Rain falls for 13 days and accumulates 2.01" (51mm) of precipitation.

How much does it rain in September?

In September, the rain falls for 13 days. Throughout September, 2.01" (51mm) of precipitation is accumulated.

When it does not snow?

In Lattimer, snow does not fall in June through September.

Does it snow in September?

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

How many hours of daylight does Lattimer have in September?

In Lattimer, the average day length in September is 12h and 28min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.3h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Lattimer, PA

Average temperature in September - Lattimer, PA
  • Average high temperature in September: 71.6°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in September: 52°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in September
Lattimer, PA

Average pressure in September - Lattimer, PA
  • Average pressure in September: 30.07"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Lattimer, PA

Average wind speed in September - Lattimer, PA
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September
Lattimer, PA

Average humidity in September - Lattimer, PA
  • Average humidity in September: 81%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (78%).

Average rainfall in September
Lattimer, PA

Average rainfall in September - Lattimer, PA
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in September
Lattimer, PA

Average rainfall days in September - Lattimer, PA
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (7.2 days).

Average snowfall in September
Lattimer, PA

Average snowfall in September - Lattimer, PA
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (7.64").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Lattimer, PA

Average snowfall days in September - Lattimer, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Lattimer, PA

Average daylight in September / Average sunshine in September - Lattimer, PA
  • Average daylight in September: 12h and 3min

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 18min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

Average sunshine days in September
Lattimer, PA

Average sunshine days in September - Lattimer, PA
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (8.7 days).

Average UV index in September
Lattimer, PA

Average UV index in September - Lattimer, PA
  • Average UV index in September: 4

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Lattimer, PA

Average cloud cover in September - Lattimer, PA
  • Average cloud cover in September: 43

The months with the most cloud cover are February and December (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 38).

Average visibility in September
Lattimer, PA

Average visibility in September - Lattimer, PA
  • Average visibility in September: 5mi

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

Lattimer, Pennsylvania, USA

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