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 onset of September is marked by a decrease in temperature, transitioning from a moderately hot 82.8°F (28.2°C) in August to a still warm 73.8°F (23.2°C). Leiter witnesses an average low-temperature of 54.3°F (12.4°C) throughout the month of September.Humidity
In Leiter, Wyoming, the average relative humidity in September is 42%.Rainfall
In Leiter, in September, it is raining for 7.6 days, with typically 0.83" (21mm) of accumulated precipitation. In Leiter, during the entire year, the rain falls for 99.8 days and collects up to 11.61" (295mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Leiter. Throughout September, in the average 0.4 snowfall days, it receives 0.79" (20mm) of snow. Throughout the year, there are 44.9 snowfall days, and 18.23" (463mm) of snow is accumulated.Daylight
In Leiter, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:41 pm. On the last day of September, in Leiter, sunrise is at 7:02 am and sunset at 6:46 pm MDT.
Sunshine
In September, the average sunshine is 10.9h.UV index
In Leiter, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Around midday, solar radiation is most harmful; hence, exposure should be limited. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Leiter in September?
What is the average humidity in September in Leiter?
How many days does it rain in September in Leiter?
When does it start snowing in Leiter?
How many hours of daylight does Leiter have in September?
What time are sunrise and sunset in September in Leiter?
How many hours of sunshine does Leiter have in September?
How high is the UV index in September in Leiter?
Average temperature in September
Leiter, WY
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is February (31.5°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).
Average pressure in September
Leiter, WY
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Leiter, WY
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in September
Leiter, WY
- Average humidity in September: 42%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (38%).
Average rainfall in September
Leiter, WY
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in September
Leiter, WY
- Average rainfall days in September: 7.6 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is December (2.5 days).
Average snowfall in September
Leiter, WY
- Average snowfall in September: 0.79"
The month with the highest snowfall is April (3.46").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Leiter, WY
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is November (7.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Leiter, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in September
Leiter, WY
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is May (11 days).
Average UV index in September
Leiter, WY
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Leiter, WY
- Average cloud cover in September: 17
The month with the most cloud cover is February (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in September
Leiter, WY
- 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).
Leiter, Wyoming, USA
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