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
In Luther, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's warm 80.8°F (27.1°C) to a still moderately hot 75°F (23.9°C). In the month of September, the temperature generally rests at an average low of 55.9°F (13.3°C).Humidity
In Luther, the average relative humidity in September is 76%.Rainfall
In Luther, in September, it is raining for 11.9 days, with typically 3.03" (77mm) of accumulated precipitation. In Luther, during the entire year, the rain falls for 130.8 days and collects up to 26.57" (675mm) of precipitation.Snowfall
In Luther, Iowa, 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 the month, sunrise is at 6:41 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:58 pm CDT.
Sunshine
In September, the average sunshine in Luther is 9.2h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
What is the usual temperature for Luther in September?
What is the average humidity in September in Luther?
How much does it rain in Luther in September?
When it does not snow in Luther?
Does it snow in Luther in September?
How many hours of daylight does Luther have in September?
When are sunrise and sunset in September in Luther?
How long on average sun shines in September in Luther?
How high is the UV index in September in Luther?
Average temperature in September
Luther, IA
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (26.8°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 (13.8°F).
Average pressure in September
Luther, 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
Luther, IA
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in September
Luther, IA
- Average humidity in September: 76%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Luther, IA
- Average rainfall in September: 3.03"
The wettest month (with the highest rainfall) is May (4.13").
The driest months (with the least rainfall) are January and February (0.87").
Average rainfall days in September
Luther, IA
- Average rainfall days in September: 11.9 days
The months with the highest number of rainy days are May and June (17.5 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in September
Luther, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Luther, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Luther, 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 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Luther, IA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is December (19 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Luther, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (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
Luther, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in September
Luther, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Luther, Iowa, USA
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