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 meteorological conditions change slightly, with the average high-temperature moving from 82.2°F (27.9°C) in August to a still warm 73.6°F (23.1°C). September's average low-temperature reading settles at a cool 52.9°F (11.6°C).Humidity
The average relative humidity in September is 42%.Rainfall
The month with the least rainfall is September, when the rain falls for 6.8 days and typically collects 0.43" (11mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, there are 60.9 snowfall days, and 34.21" (869mm) of snow is accumulated.Daylight
In September, the average length of the day in Orin is 12h and 28min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:34 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:43 pm MDT.
Sunshine
The average sunshine in September is 11.1h.UV index
In Orin, Wyoming, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When does it start snowing in Orin?
How many hours of daylight does Orin have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Orin, WY
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average pressure in September
Orin, WY
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Orin, WY
- Average wind speed in September: 9.9mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in September
Orin, WY
- Average humidity in September: 42%
The month with the highest relative humidity is February (73%).
The month with the lowest relative humidity is August (40%).
Average rainfall in September
Orin, WY
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in September
Orin, WY
- Average rainfall days in September: 6.8 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in September
Orin, WY
- Average snowfall in September: 0.16"
The month with the highest snowfall is April (5.59").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Orin, WY
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is February (12.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Orin, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in September
Orin, WY
- Average sunshine days in September: 21.1 days
The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is April (11.3 days).
Average UV index in September
Orin, WY
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, April, November and December (UV index 2).
Average cloud cover in September
Orin, WY
- Average cloud cover in September: 14
The month with the most cloud cover is February (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Orin, 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).
Orin, Wyoming, USA
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