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
In Mountain View, the average high-temperature in September drops from a hot 94.5°F (34.7°C) in August to a moderately hot 85.1°F (29.5°C). Mountain View reports an average low-temperature of 65.8°F (18.8°C) during the nights of September.Heat index
The heat index in September is evaluated at a hot 89.6°F (32°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
The average relative humidity in September in Mountain View is 62%.Rainfall
In September, the rain falls for 13.3 days. Throughout September, 2.44" (62mm) of precipitation is accumulated. In Mountain View, during the entire year, the rain falls for 112.6 days and collects up to 21.54" (547mm) of precipitation.Snowfall
May through October are months without snowfall in Mountain View.Daylight
The average length of the day in September in Mountain View is 12h and 23min.On the first day of September, sunrise is at 7:08 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:19 pm CDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In Mountain View, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
How hot does it get in Mountain View in September?
What is the average humidity in September in Mountain View?
How much does it rain in Mountain View in September?
When it does not snow in Mountain View?
What is the average length of the day in September in Mountain View?
When is the sunrise / sunset in September in Mountain View?
How many hours of sunshine does Mountain View have in September?
How high is the UV index in September in Mountain View?
Average temperature in September
Mountain View, OK
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (94.6°F).
The months with the lowest average high temperature are January and December (50°F).
- Average low temperature in September: 65.8°F
The month with the highest average low temperature is July (74.1°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in September
Mountain View, 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 (29.87"Hg).
Average wind speed in September
Mountain View, OK
- Average wind speed in September: 9.2mph
The windiest month (with the highest average wind speed) is April (12.6mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in September
Mountain View, OK
- Average humidity in September: 62%
The month with the highest relative humidity is May (67%).
The month with the lowest relative humidity is August (54%).
Average rainfall in September
Mountain View, OK
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days in September
Mountain View, OK
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (4 days).
Average snowfall in September
Mountain View, OK
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Mountain View, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Mountain View, 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 48min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Mountain View, OK
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is January (25.6 days).
The month with the least sunshine days is May (13.7 days).
Average UV index in September
Mountain View, 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
Mountain View, OK
- Average cloud cover in September: 26
The months with the most cloud cover are March and April (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Mountain View, 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).
Mountain View, Oklahoma, USA
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