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
The average high-temperature for September is a still moderately hot 74.7°F (23.7°C), closely aligning with the temperature of the preceding month. Malcom records an average temperature drop to a refreshing 55.4°F (13°C) in September.Humidity
The average relative humidity in September is 77%.Rainfall
In Malcom, during September, the rain falls for 11.9 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Malcom, Iowa, during the entire year, the rain falls for 135.6 days and collects up to 27.48" (698mm) of precipitation.Snowfall
June through September are months without snowfall in Malcom.Daylight
In September, the average length of the day in Malcom, Iowa, is 12h and 28min.On the first day of September in Malcom, sunrise is at 6:36 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:53 pm CDT.
Sunshine
In September, the average sunshine in Malcom is 9.3h.UV index
In Malcom, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the UV index of 4 transforms into the following advice:
Act with care - The suggestion to avoid sunburn is emphasized. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What are the temperatures in Malcom in September?
What is the average humidity in September in Malcom?
How much does it rain in Malcom in September?
When it does not snow in Malcom?
Does it snow in Malcom in September?
How many hours of daylight does Malcom have in September?
When are sunrise and sunset in September in Malcom?
How many hours of sunshine does Malcom have in September?
How high is the UV index in September in Malcom?
Average temperature in September
Malcom, IA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in September
Malcom, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Malcom, IA
- Average wind speed in September: 8.1mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in September
Malcom, IA
- Average humidity in September: 77%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Malcom, IA
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Malcom, IA
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in September
Malcom, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Malcom, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Malcom, 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 2min
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 0min).
Average sunshine days in September
Malcom, IA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Malcom, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Malcom, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in September
Malcom, 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).
Malcom, Iowa, USA
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