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
During the shift to September, Palo records a mild decrease in average high-temperature, moving from a moderately hot 79.2°F (26.2°C) in August to a pleasant 73.2°F (22.9°C). The temperature lowers to an average of 54.7°F (12.6°C) during September nights.Humidity
In September, the average relative humidity is 78%.Rainfall
In Palo, in September, during 11.3 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Palo, during the entire year, the rain falls for 138.6 days and collects up to 27.8" (706mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Palo is 12h and 28min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:49 pm CDT.
Sunshine
The average sunshine in September is 9.1h.UV index
In Palo, 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 radiation for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Guard yourself - Avoiding sunburn is suggested. To guard against the harmful effects of the Sun, minimize exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Palo?
What is the average humidity in September in Palo?
How many days does it rain in September in Palo?
When it does not snow in Palo?
Does it snow in Palo in September?
What is the average length of the day in September in Palo?
What time are sunrise and sunset in September in Palo?
How long on average sun shines in September in Palo?
What is the UV index intensity in September in Palo?
Average temperature in September
Palo, IA
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in September
Palo, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Palo, IA
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in September
Palo, IA
- Average humidity in September: 78%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Palo, IA
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is May (4.37").
The driest months (with the least rainfall) are January and February (1.18").
Average rainfall days in September
Palo, IA
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Palo, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Palo, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Palo, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Palo, IA
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is June (9.9 days).
Average UV index in September
Palo, IA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Palo, IA
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Palo, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Palo, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location