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 brings a slight decrease in the average high-temperature, shifting from a moderately hot 78.6°F (25.9°C) in August to a pleasant 71.8°F (22.1°C). Throughout September, Marquette records an average temperature of 52.2°F (11.2°C) at night.Humidity
In Marquette, the average relative humidity in September is 80%.Rainfall
In Marquette, during September, the rain falls for 10.8 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Marquette, Iowa, during the entire year, the rain falls for 124.7 days and collects up to 22.56" (573mm) of precipitation.Snowfall
In Marquette, snow does not fall in June through September.Daylight
The average length of the day in September in Marquette is 12h and 29min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:47 pm CDT.
Sunshine
In Marquette, Iowa, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September in Marquette is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Heed the precautions - Suggestions to avoid sunburn are made. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Marquette in September?
What is the average humidity in September in Marquette?
How much does it rain in Marquette in September?
When it does not snow in Marquette?
Does it snow in Marquette in September?
What is the average length of the day in September in Marquette?
When is the sunrise / sunset in September in Marquette?
How many hours of sunshine does Marquette have in September?
What is the UV index intensity in September in Marquette?
Average temperature in September
Marquette, IA
- Average high temperature in September: 71.8°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in September
Marquette, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Marquette, IA
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in September
Marquette, IA
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Marquette, IA
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is June (3.9").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in September
Marquette, IA
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in September
Marquette, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Marquette, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Marquette, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Marquette, IA
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in September
Marquette, 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, November and December (UV index 1).
Average cloud cover in September
Marquette, IA
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Marquette, IA
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Marquette, Iowa, USA
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