September weather forecast
Pacific Junction, IA

Share

Weather in September

The first month of the autumn, September, is still a warm month in Pacific Junction, Iowa, with temperature in the range of an average high of 76.6°F (24.8°C) and an average low of 57.4°F (14.1°C).

Temperature

The onset of September entails a subtle temperature shift, as the average high-temperature eases from 82.4°F (28°C) in August to a still moderately hot 76.6°F (24.8°C). Throughout September, Pacific Junction records an average temperature of 57.4°F (14.1°C) at night.

Humidity

In Pacific Junction, the average relative humidity in September is 73%.

Rainfall

In Pacific Junction, in September, it is raining for 12.4 days, with typically 2.48" (63mm) of accumulated precipitation. In Pacific Junction, during the entire year, the rain falls for 129.5 days and collects up to 27.48" (698mm) of precipitation.

Snowfall

In Pacific Junction, snow does not fall in June through September.

Daylight

The average length of the day in September in Pacific Junction is 12h and 27min.
On the first day of the month, sunrise is at 6:50 am and sunset at 7:55 pm. On the last day of September, in Pacific Junction, sunrise is at 7:19 am and sunset at 7:06 pm CDT.

Sunshine

In Pacific Junction, the average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 in September translates into this advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Pacific Junction?

The high-temperature, in September, in Pacific Junction, records 76.6°F (24.8°C), while the low-temperature is 57.4°F (14.1°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 89.6°F (32°C).

What is the average humidity in September in Pacific Junction?

In Pacific Junction, the average relative humidity in September is 73%.

How much does it rain in Pacific Junction in September?

In September, in Pacific Junction, the rain falls for 12.4 days. Throughout September, 2.48" (63mm) of precipitation is accumulated.

When it does not snow in Pacific Junction?

June through September are months without snowfall in Pacific Junction, Iowa.

Does it snow in Pacific Junction in September?

In Pacific Junction, Iowa, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Pacific Junction have in September?

In September, the average day length is 12h and 27min.

When are sunrise and sunset in September in Pacific Junction?

On the first day of September in Pacific Junction, Iowa, sunrise is at 6:50 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:06 pm CDT.

How many hours of sunshine does Pacific Junction have in September?

In September, the average sunshine duration in Pacific Junction, Iowa, is 9h.

What is the UV index reading in September in Pacific Junction?

In September, the average daily maximum UV index in Pacific Junction, Iowa, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Pacific Junction, IA

Average temperature in September - Pacific Junction, IA
  • Average high temperature in September: 76.6°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in September: 57.4°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in September
Pacific Junction, IA

Average pressure in September - Pacific Junction, IA
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in September
Pacific Junction, IA

Average wind speed in September - Pacific Junction, IA
  • Average wind speed in September: 8.2mph

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

Average humidity in September
Pacific Junction, IA

Average humidity in September - Pacific Junction, IA
  • Average humidity in September: 73%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (67%).

Average rainfall in September
Pacific Junction, IA

Average rainfall in September - Pacific Junction, IA
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is June (4.57").
The driest months (with the least rainfall) are January and February (0.83").

Average rainfall days in September
Pacific Junction, IA

Average rainfall days in September - Pacific Junction, IA
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in September
Pacific Junction, IA

Average snowfall in September - Pacific Junction, IA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.9").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Pacific Junction, IA

Average snowfall days in September - Pacific Junction, IA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Pacific Junction, IA

Average daylight in September / Average sunshine in September - Pacific Junction, IA
  • 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: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in September
Pacific Junction, IA

Average sunshine days in September - Pacific Junction, IA
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is June (10.6 days).

Average UV index in September
Pacific Junction, IA

Average UV index in September - Pacific Junction, IA
  • Average UV index in September: 5

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

Average cloud cover in September
Pacific Junction, IA

Average cloud cover in September - Pacific Junction, IA
  • Average cloud cover in September: 28

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in September
Pacific Junction, IA

Average visibility in September - Pacific Junction, IA
  • Average visibility in September: 6mi

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

Pacific Junction, Iowa, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location