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 Lamont, the average high-temperature in September decreases from a warm 79.5°F (26.4°C) in August to an agreeable 69.4°F (20.8°C). Lamont, after an intense day, registers a significant cooling to an average low-temperature of 44.1°F (6.7°C) throughout September.Humidity
In September, the average relative humidity is 48%.Rainfall
In Lamont, Idaho, in September, it is raining for 9.1 days, with typically 1.26" (32mm) of accumulated precipitation. In Lamont, during the entire year, the rain falls for 121 days and collects up to 20.12" (511mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.67" (17mm) of snow. Throughout the year, there are 119.7 snowfall days, and 88.23" (2241mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 6:49 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:06 pm MDT.
Sunshine
The average sunshine in September is 10h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Enhance your sun protection with tightly woven, yet airy clothing. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Lamont in September?
What is the average humidity in September?
How much does it rain in September?
When does it start snowing?
How many hours of daylight does Lamont have in September?
When is the sunrise / sunset in September in Lamont?
How many hours of sunshine does Lamont have in September?
What is the UV index reading in September?
Average temperature in September
Lamont, ID
- Average high temperature in September: 69.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (25°F).
- Average low temperature in September: 44.1°F
The month with the highest average low temperature is July (50°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Lamont, ID
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Lamont, ID
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is June (6.6mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).
Average humidity in September
Lamont, ID
- Average humidity in September: 48%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (42%).
Average rainfall in September
Lamont, ID
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is January (2.44").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days in September
Lamont, ID
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in September
Lamont, ID
- Average snowfall in September: 0.67"
The month with the highest snowfall is January (20").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Lamont, ID
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is December (21.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Lamont, ID
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Lamont, ID
- Average sunshine days in September: 18 days
The month with the most sunshine days is July (19.9 days).
The month with the least sunshine days is April (6.7 days).
Average UV index in September
Lamont, ID
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Lamont, ID
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in September
Lamont, ID
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
Lamont, Idaho, USA
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