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 reveals a small adjustment in temperature, transitioning from an average high of 94.3°F (34.6°C) in August to a still hot 86°F (30°C). In September, Silo records an average nighttime temperature of 66.9°F (19.4°C).Heat index
The heat index for September is evaluated at a hot 93.2°F (34°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.Know that the heat index computations account for shaded terrains and slight winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
The average relative humidity in September in Silo is 67%.Rainfall
In September, the rain falls for 11.9 days. Throughout September, 2.24" (57mm) of precipitation is accumulated. In Silo, during the entire year, the rain falls for 125.8 days and collects up to 24.53" (623mm) of precipitation.Snowfall
In Silo, snow does not fall in April through October.Daylight
In Silo, the average length of the day in September is 12h and 22min.On the first day of September in Silo, sunrise is at 7:00 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:11 pm CDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In Silo, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
Is it hot in Silo during September?
What is the average humidity in September in Silo?
How many days does it rain in September in Silo?
When it does not snow in Silo?
How many hours of daylight does Silo have in September?
When is the sunrise / sunset in September in Silo?
How many hours of sunshine does Silo have in September?
How high is the UV index in September in Silo?
Average temperature in September
Silo, OK
- Average high temperature in September: 86°F
The warmest month (with the highest average high temperature) is August (94.3°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in September: 66.9°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).
Average pressure in September
Silo, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Silo, OK
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is March (10.2mph).
The calmest months (with the lowest average wind speed) are July, August and September (7mph).
Average humidity in September
Silo, OK
- Average humidity in September: 67%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Silo, OK
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days in September
Silo, OK
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Silo, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Silo, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Silo, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Silo, OK
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (15.3 days).
Average UV index in September
Silo, OK
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Silo, OK
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Silo, 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).
Silo, Oklahoma, USA
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