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 presents an average high-temperature of a still warm 75.4°F (24.1°C), maintaining a close correlation with the preceding month. In the month of September, the average low-temperature in Westfield usually rests at a mild 57.7°F (14.3°C).Humidity
The average relative humidity in September in Westfield is 77%.Rainfall
In Westfield, during September, the rain falls for 11 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Westfield, Indiana, during the entire year, the rain falls for 128.2 days and collects up to 14.61" (371mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September in Westfield is 12h and 26min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:15 pm. On the last day of September, sunrise is at 7:40 am and sunset at 7:27 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Westfield, Indiana, is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What is the temperature in September in Westfield?
What is the average humidity in September in Westfield?
How much does it rain in Westfield in September?
When it does not snow in Westfield?
Does it snow in Westfield in September?
What is the average length of the day in September in Westfield?
When are sunrise and sunset in September in Westfield?
How many hours of sunshine does Westfield have in September?
How high is the UV index in September in Westfield?
Average temperature in September
Westfield, IN
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in September
Westfield, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Westfield, IN
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
Westfield, IN
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Westfield, IN
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days in September
Westfield, IN
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in September
Westfield, IN
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Westfield, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Westfield, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Westfield, IN
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in September
Westfield, IN
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Westfield, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Westfield, IN
- 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).
Westfield, Indiana, USA
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