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
In September, the average high-temperature marginally drops from 81.5°F (27.5°C) in August to a still warm 76.1°F (24.5°C). September nights are marked by an average temperature drop to a moderate 58.1°F (14.5°C).Humidity
The average relative humidity in September is 77%.Rainfall
In Needham, in September, during 13.5 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Needham, during the entire year, the rain falls for 156.3 days and collects up to 30.16" (766mm) of precipitation.Snowfall
In Needham, snow does not fall in May through September.Daylight
The average length of the day in September in Needham is 12h and 26min.On the first day of September in Needham, sunrise is at 7:12 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 7:27 pm EDT.
Sunshine
In Needham, Indiana, the average sunshine in September is 8.2h.UV index
In Needham, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What is the average September temperature in Needham?
What is the average humidity in September in Needham?
How many days does it rain in September in Needham?
When it does not snow in Needham?
Does it snow in Needham in September?
How many hours of daylight does Needham have in September?
When are sunrise and sunset in September in Needham?
How long on average sun shines in September in Needham?
What is the UV index intensity in September in Needham?
Average temperature in September
Needham, IN
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in September
Needham, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Needham, IN
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Needham, IN
- Average humidity in September: 77%
The months with the highest relative humidity are July and December (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Needham, IN
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in September
Needham, IN
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Needham, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Needham, IN
- 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
Needham, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
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 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Needham, IN
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in September
Needham, IN
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Needham, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Needham, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Needham, Indiana, USA
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