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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from 80.8°F (27.1°C) to a still warm 74.8°F (23.8°C). Throughout the month of September, Valeria reports a steady low-temperature average of 55.9°F (13.3°C).Humidity
In Valeria, the average relative humidity in September is 77%.Rainfall
In September, the rain falls for 10.1 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 104.4 rainfall days, and 10.71" (272mm) of precipitation is accumulated.Snowfall
In Valeria, snow does not fall in June through September.Daylight
The average length of the day in September in Valeria, Iowa, is 12h and 28min.On the first day of September in Valeria, Iowa, sunrise is at 6:40 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:56 pm CDT.
Sunshine
In Valeria, the average sunshine in September is 9.5h.UV index
In Valeria, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. To guard against the harmful effects of the Sun, minimize exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Valeria in September?
What is the average humidity in September in Valeria?
How much does it rain in Valeria in September?
When it does not snow in Valeria?
Does it snow in Valeria in September?
What is the average length of the day in September in Valeria?
When is the sunrise / sunset in September in Valeria?
How many hours of sunshine does Valeria have in September?
What is the UV index reading in September in Valeria?
Average temperature in September
Valeria, IA
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Valeria, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Valeria, IA
- Average wind speed in September: 8mph
The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in September
Valeria, IA
- Average humidity in September: 77%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Valeria, IA
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is May (1.81").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Valeria, IA
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Valeria, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Valeria, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Valeria, 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 3min
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 12min).
Average sunshine days in September
Valeria, IA
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in September
Valeria, IA
- Average UV index in September: 4
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
Valeria, IA
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in September
Valeria, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Valeria, Iowa, USA
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