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 signifies a gentle decline in Ironwood's average high-temperature, easing from a moderately hot 74.3°F (23.5°C) in August to an enjoyable 66.7°F (19.3°C). In Ironwood, the expected average low-temperature for September is a chilly 49.8°F (9.9°C).Humidity
In September, the average relative humidity in Ironwood is 79%.Rainfall
In Ironwood, in September, during 12.8 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 104.6 rainfall days, and 16.5" (419mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Ironwood.Daylight
In Ironwood, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:39 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:41 pm CDT.
Sunshine
In Ironwood, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Ironwood is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 4 in September transforms into this advice:
Prioritize safety - Recommendations to avert sunburn are shared. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What are September temperatures in Ironwood?
What is the average humidity in September in Ironwood?
How much does it rain in Ironwood in September?
When it does not snow in Ironwood?
Does it snow in Ironwood in September?
What is the average length of the day in September in Ironwood?
When are sunrise and sunset in September in Ironwood?
How long on average sun shines in September in Ironwood?
What is the UV index reading in September in Ironwood?
Average temperature in September
Ironwood, MI
- Average high temperature in September: 66.7°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in September: 49.8°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in September
Ironwood, MI
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Ironwood, MI
- Average wind speed in September: 8.1mph
The windiest months (with the highest average wind speed) are January and November (9.6mph).
The calmest months (with the lowest average wind speed) are June, July and August (7mph).
Average humidity in September
Ironwood, MI
- Average humidity in September: 79%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Ironwood, MI
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in September
Ironwood, MI
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is June (13.1 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in September
Ironwood, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (8.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Ironwood, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ironwood, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h 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: 1h and 54min).
Average sunshine days in September
Ironwood, MI
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is July (16.3 days).
The month with the least sunshine days is January (7.8 days).
Average UV index in September
Ironwood, MI
- 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, November and December (UV index 1).
Average cloud cover in September
Ironwood, MI
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Ironwood, MI
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
Ironwood, Michigan, USA
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