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
September brings a decrease in the average high-temperature, shifting from a torrid 95°F (35°C) in August to a moderately hot 85.8°F (29.9°C). Roosevelt reports a consistent average low-temperature of 67.1°F (19.5°C) throughout September nights.Heat index
Throughout September, the heat index is evaluated at a hot 91.4°F (33°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
In September, the average relative humidity is 60%.Rainfall
In September, the rain falls for 11.3 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. Throughout the year, in Roosevelt, there are 98.2 rainfall days, and 19.29" (490mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September in Roosevelt is 12h and 23min.On the first day of the month, sunrise is at 7:09 am and sunset at 8:02 pm. On the last day of September, in Roosevelt, sunrise is at 7:30 am and sunset at 7:21 pm CDT.
Sunshine
The average sunshine in September in Roosevelt is 8.8h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
Is it hot in Roosevelt during September?
What is the average humidity in September in Roosevelt?
How many days does it rain in September in Roosevelt?
When it does not snow in Roosevelt?
What is the average length of the day in September in Roosevelt?
When are sunrise and sunset in September in Roosevelt?
How long on average sun shines in September in Roosevelt?
What is the UV index intensity in September in Roosevelt?
Average temperature in September
Roosevelt, OK
- Average high temperature in September: 85.8°F
The warmest month (with the highest average high temperature) is July (95.9°F).
The month with the lowest average high temperature is December (50.2°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (75°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in September
Roosevelt, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Roosevelt, OK
- Average wind speed in September: 9.4mph
The windiest month (with the highest average wind speed) is April (12.7mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).
Average humidity in September
Roosevelt, OK
- Average humidity in September: 60%
The month with the highest relative humidity is May (63%).
The month with the lowest relative humidity is August (51%).
Average rainfall in September
Roosevelt, OK
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in September
Roosevelt, OK
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in September
Roosevelt, OK
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Roosevelt, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Roosevelt, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Roosevelt, OK
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is May (16.6 days).
Average UV index in September
Roosevelt, OK
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Roosevelt, OK
- Average cloud cover in September: 26
The month with the most cloud cover is March (Cloud cover 32).
The months with the least cloud cover are June and August (Cloud cover 18).
Average visibility in September
Roosevelt, OK
- 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).
Roosevelt, Oklahoma, USA
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