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 advent of September brings a slight shift in average high-temperature, moving from a moderately hot 82.2°F (27.9°C) in August to a still warm 76.8°F (24.9°C). Throughout September, Essex's nights cool down to an average of 57.7°F (14.3°C).Humidity
In Essex, the average relative humidity in September is 73%.Rainfall
In Essex, Iowa, in September, it is raining for 12.3 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, there are 125.6 rainfall days, and 26.14" (664mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Essex, Iowa.Daylight
The average length of the day in September in Essex is 12h and 27min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:04 pm CDT.
Sunshine
The average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. To guard against the harmful effects of the Sun, minimize exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the average September temperature in Essex?
What is the average humidity in September in Essex?
How much does it rain in Essex in September?
When it does not snow in Essex?
Does it snow in Essex in September?
What is the average length of the day in September in Essex?
What time are sunrise and sunset in September in Essex?
How long on average sun shines in September in Essex?
How high is the UV index in September in Essex?
Average temperature in September
Essex, IA
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Essex, IA
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Essex, IA
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
Essex, IA
- Average humidity in September: 73%
The months with the highest relative humidity are January and July (79%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Essex, IA
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in September
Essex, IA
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in September
Essex, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Essex, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Essex, 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 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Essex, IA
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Essex, IA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Essex, IA
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Essex, 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).
Essex, Iowa, USA
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