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
Granite, Wyoming, in September undergoes a slight reduction in the average high-temperature, shifting from August's 81.1°F (27.3°C) to a still warm 73.8°F (23.2°C). Granite experiences a consistent, yet significant, drop from daily highs to a low-temperature of 52.2°F (11.2°C) throughout September.Humidity
The months with the lowest humidity in Granite are August and September, with an average relative humidity of 43%.Rainfall
In Granite, during September, the rain falls for 8.2 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Granite, during the entire year, the rain falls for 115.8 days and collects up to 14.61" (371mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow. In Granite, during the entire year, snow falls for 62.3 days and aggregates up to 30.59" (777mm) of snow.Daylight
In Granite, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:32 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:43 pm MDT.
Sunshine
In Granite, the average sunshine in September is 10.6h.UV index
In September, the average daily maximum UV index in Granite is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Make use of precautions - It is urged to ward off sun damage. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
What is the temperature in September in Granite?
What are the least humid months in Granite?
What is the average humidity in September in Granite?
How many days does it rain in September in Granite?
When does it start to snow in Granite?
What is the average length of the day in September in Granite?
When is the sunrise / sunset in September in Granite?
How long on average sun shines in September in Granite?
How high is the UV index in September in Granite?
Average temperature in September
Granite, WY
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is December (34.7°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in September
Granite, WY
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Granite, WY
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is January (14.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in September
Granite, WY
- Average humidity in September: 43%
The month with the highest relative humidity is February (64%).
The months with the lowest relative humidity are August and September (43%).
Average rainfall in September
Granite, WY
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Granite, WY
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in September
Granite, WY
- Average snowfall in September: 0.08"
The month with the highest snowfall is March (6.06").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Granite, WY
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Granite, WY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in September
Granite, WY
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is April (9.3 days).
Average UV index in September
Granite, 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, November and December (UV index 2).
Average cloud cover in September
Granite, WY
- Average cloud cover in September: 18
The months with the most cloud cover are April and May (Cloud cover 32).
The month with the least cloud cover is September (Cloud cover 18).
Average visibility in September
Granite, 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).
Granite, Wyoming, USA
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