September weather forecastPoint of Rocks, WY
September
Weather in September
September, the first month of the autumn in Point of Rocks, is still a pleasant month, with temperature in the range of an average low of 51.3°F (10.7°C) and an average high of 70.3°F (21.3°C).Temperature
During Point of Rocks's transition into September, the average high-temperature lessens, moving from a moderately hot 79.3°F (26.3°C) in August to an agreeable 70.3°F (21.3°C). In September, Point of Rocks reports a consistent average low-temperature of 51.3°F (10.7°C) during the nights.Humidity
In September, the average relative humidity is 36%.Rainfall
In Point of Rocks, during September, the rain falls for 7.2 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, in Point of Rocks, there are 93.5 rainfall days, and 10.31" (262mm) of precipitation is accumulated.Snowfall
Months with snowfall in Point of Rocks are January through June, September through December. September is the first month it typically snows in Point of Rocks. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 75.5 snowfall days, and 30.16" (766mm) of snow is accumulated.Daylight
In Point of Rocks, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:57 pm MDT.
Sunshine
The average sunshine in September in Point of Rocks is 10.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Point of Rocks, WY
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in September: 51.3°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Point of Rocks, WY
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Point of Rocks, WY
- Average wind speed in September: 9.4mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in September
Point of Rocks, WY
- Average humidity in September: 36%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in September
Point of Rocks, WY
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in September
Point of Rocks, WY
- Average rainfall days in September: 7.2 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (4.7 days).
Average snowfall in September
Point of Rocks, WY
- Average snowfall in September: 0.04"
The month with the highest snowfall is March (6.14").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Point of Rocks, WY
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Point of Rocks, WY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 10h and 42min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in September
Point of Rocks, WY
- Average sunshine days in September: 19.8 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is April (11.5 days).
Average UV index in September
Point of Rocks, WY
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Point of Rocks, WY
- Average cloud cover in September: 14
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Point of Rocks, WY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
