Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September begins with an average high-temperature of a still moderately hot 74.1°F (23.4°C), reflecting close similarity to the preceding month. Pomeroy observes an average nighttime low-temperature of 54.9°F (12.7°C) during the month of September.Humidity
The average relative humidity in September in Pomeroy is 75%.Rainfall
In Pomeroy, during September, the rain falls for 8.8 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Pomeroy, during the entire year, the rain falls for 84.6 days and collects up to 7.91" (201mm) of precipitation.Snowfall
In Pomeroy, snow does not fall in May through September.Daylight
In Pomeroy, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:52 pm. On the last day of September, in Pomeroy, sunrise is at 7:15 am and sunset at 7:01 pm CDT.
Sunshine
In September, the average sunshine in Pomeroy is 9h.UV index
In Pomeroy, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Pomeroy?
What is the average humidity in September in Pomeroy?
How much does it rain in Pomeroy in September?
When it does not snow in Pomeroy?
Does it snow in Pomeroy in September?
How many hours of daylight does Pomeroy have in September?
When is the sunrise / sunset in September in Pomeroy?
How many hours of sunshine does Pomeroy have in September?
How high is the UV index in September in Pomeroy?
Average temperature in September
Pomeroy, IA
- Average high temperature in September: 74.1°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (25°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in September
Pomeroy, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Pomeroy, IA
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in September
Pomeroy, IA
- Average humidity in September: 75%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall in September
Pomeroy, IA
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in September
Pomeroy, IA
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is June (12 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in September
Pomeroy, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Pomeroy, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Pomeroy, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Pomeroy, IA
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is December (24.3 days).
The month with the least sunshine days is June (15.5 days).
Average UV index in September
Pomeroy, IA
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Pomeroy, IA
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in September
Pomeroy, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Pomeroy, Iowa, USA
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