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
A shift in the average high-temperature occurs in September, reducing from a moderately hot 81°F (27.2°C) in August to an agreeable 71.4°F (21.9°C). Frannie observes an average nighttime low-temperature of 51.3°F (10.7°C) during the month of September.Humidity
In Frannie, the average relative humidity in September is 42%.Rainfall
In Frannie, Wyoming, in September, it is raining for 9.5 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, in Frannie, there are 133.8 rainfall days, and 9.8" (249mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Frannie, during the entire year, snow falls for 64 days and aggregates up to 19.92" (506mm) of snow.Daylight
The average length of the day in September is 12h and 31min.On the first day of September in Frannie, Wyoming, sunrise is at 6:37 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:56 pm MDT.
Sunshine
In Frannie, the average sunshine in September is 10.8h.UV index
In Frannie, Wyoming, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
What is the average September temperature in Frannie?
What is the average humidity in September in Frannie?
How much does it rain in Frannie in September?
When does it start snowing in Frannie?
What is the average length of the day in September in Frannie?
What time are sunrise and sunset in September in Frannie?
How many hours of sunshine does Frannie have in September?
How high is the UV index in September in Frannie?
Average temperature in September
Frannie, WY
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (27.5°F).
- Average low temperature in September: 51.3°F
The month with the highest average low temperature is July (61°F).
The coldest months (with the lowest average low temperature) are January and February (14.4°F).
Average pressure in September
Frannie, WY
- Average pressure in September: 29.96"Hg
The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Frannie, WY
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in September
Frannie, WY
- Average humidity in September: 42%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (37%).
Average rainfall in September
Frannie, WY
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is December (0.51").
Average rainfall days in September
Frannie, WY
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in September
Frannie, WY
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Frannie, WY
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Frannie, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 24min).
Average sunshine days in September
Frannie, WY
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is December (17.2 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in September
Frannie, WY
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Frannie, WY
- Average cloud cover in September: 16
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in September
Frannie, 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).
Frannie, Wyoming, USA
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