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's arrival aligns with a minor decrease in average high-temperatures, from August's moderately hot 81°F (27.2°C) to a still warm 75°F (23.9°C). In September, Nevinville reports a consistent average low-temperature of 56.1°F (13.4°C) during the nights.Humidity
In September, the average relative humidity in Nevinville is 77%.Rainfall
In September, the rain falls for 11.6 days. Throughout September, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 127.7 rainfall days, and 23.39" (594mm) of precipitation is accumulated.Snowfall
In Nevinville, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September in Nevinville, sunrise is at 6:45 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:01 pm CDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
In Nevinville, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Be vigilant - Preventing sunburn is recommended. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What is the temperature in September in Nevinville?
What is the average humidity in September in Nevinville?
How much does it rain in Nevinville in September?
When it does not snow in Nevinville?
Does it snow in Nevinville in September?
How many hours of daylight does Nevinville have in September?
What time are sunrise and sunset in September in Nevinville?
How many hours of sunshine does Nevinville have in September?
How high is the UV index in September in Nevinville?
Average temperature in September
Nevinville, IA
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in September
Nevinville, 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
Nevinville, IA
- Average wind speed in September: 8.2mph
The windiest months (with the highest average wind speed) are January and February (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Nevinville, IA
- Average humidity in September: 77%
The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Nevinville, IA
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in September
Nevinville, IA
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in September
Nevinville, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Nevinville, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Nevinville, 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 1min
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 24min).
Average sunshine days in September
Nevinville, IA
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in September
Nevinville, IA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Nevinville, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in September
Nevinville, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Nevinville, Iowa, USA
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