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
Stockton experiences a minor change to a still warm 75.2°F (24°C) in average high-temperature during September, closely reflecting August. Stockton's nights in September cool down to an average low-temperature of 55.9°F (13.3°C).Humidity
In September, the average relative humidity in Stockton is 76%.Rainfall
In Stockton, in September, it is raining for 11 days, with typically 2.2" (56mm) of accumulated precipitation. In Stockton, during the entire year, the rain falls for 136.9 days and collects up to 27.95" (710mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Stockton, Iowa, the average length of the day in September is 12h and 28min.On the first day of September in Stockton, Iowa, sunrise is at 6:30 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:46 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, the UV index of 4 transforms into the following advice:
Prioritize safety - Recommendations to avert sunburn are shared. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Stockton in September?
What is the average humidity in September in Stockton?
How many days does it rain in September in Stockton?
When it does not snow in Stockton?
Does it snow in Stockton in September?
How many hours of daylight does Stockton have in September?
What time are sunrise and sunset in September in Stockton?
How many hours of sunshine does Stockton have in September?
What is the UV index intensity in September in Stockton?
Average temperature in September
Stockton, IA
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in September
Stockton, 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 (29.9"Hg).
Average wind speed in September
Stockton, IA
- Average wind speed in September: 7.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Stockton, IA
- Average humidity in September: 76%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Stockton, IA
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in September
Stockton, IA
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in September
Stockton, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Stockton, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stockton, 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 12min).
- Average sunshine in September: 9h and 2min
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
Stockton, IA
- Average sunshine days in September: 17 days
The month with the most sunshine days is December (18.4 days).
The months with the least sunshine days are May and June (11.4 days).
Average UV index in September
Stockton, IA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Stockton, IA
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Stockton, 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).
Stockton, Iowa, USA
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