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
Lamar in September experiences a gentle temperature dip, with average high-temperatures reducing from a moderately hot 85.6°F (29.8°C) in August to a still warm 79.7°F (26.5°C). Nighttime temperatures hover around an average low of 60.3°F (15.7°C) in September.Humidity
In September, the average relative humidity is 74%.Rainfall
September is the month with the least rainfall. Rain falls for 9.8 days and accumulates 0.51" (13mm) of precipitation.Snowfall
Months with snowfall are January through April, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 20.1 snowfall days, and 2.24" (57mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:16 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:31 pm CDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September in Lamar?
When does it start to snow?
What is the average length of the day in September?
When is the sunrise / sunset in September in Lamar?
How long on average sun shines in September in Lamar?
How high is the UV index in September?
Average temperature in September
Lamar, IN
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in September: 60.3°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in September
Lamar, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Lamar, IN
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in September
Lamar, IN
- Average humidity in September: 74%
The months with the highest relative humidity are February and May (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Lamar, IN
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is April (1.42").
The driest month (with the least rainfall) is September (0.51").
Average rainfall days in September
Lamar, IN
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (14 days).
The months with the least rainy days are January and November (7.7 days).
Average snowfall in September
Lamar, IN
- Average snowfall in September: 0.04"
The month with the highest snowfall is January (0.83").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in September
Lamar, IN
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Lamar, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Lamar, IN
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is May (13 days).
Average UV index in September
Lamar, IN
- Average UV index in September: 5
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 and December (UV index 2).
Average cloud cover in September
Lamar, IN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in September
Lamar, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
Lamar, Indiana, USA
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