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
The average high-temperature during September registers at a warm 84.4°F (29.1°C), maintaining a close resemblance to the previous month. Despite a stark disparity with daily highs, Middletown records an average nighttime temperature of 54.5°F (12.5°C) in September.Heat index
September's average heat index is estimated at a hot 86°F (30°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
September is the least humid month, with an average relative humidity of 53%.Rainfall
In Middletown, in September, it is raining for 2.1 days, with typically 0.08" (2mm) of accumulated precipitation. In Middletown, during the entire year, the rain falls for 77 days and collects up to 17.05" (433mm) of precipitation.Snowfall
January, March through December are months without snowfall in Middletown.Daylight
In Middletown, the average length of the day in September is 12h and 25min.On the first day of September in Middletown, sunrise is at 6:40 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:54 pm PDT.
Sunshine
In Middletown, the average sunshine in September is 11.1h.UV index
In Middletown, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
How hot does it get in Middletown in September?
What is the least humid month in Middletown?
What is the average humidity in September in Middletown?
How many days does it rain in September in Middletown?
When it does not snow in Middletown?
How many hours of daylight does Middletown have in September?
When is the sunrise / sunset in September in Middletown?
How many hours of sunshine does Middletown have in September?
How high is the UV index in September in Middletown?
Average temperature in September
Middletown, CA
- Average high temperature in September: 84.4°F
The warmest month (with the highest average high temperature) is August (87.8°F).
The month with the lowest average high temperature is December (54.7°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is December (39.4°F).
Average pressure in September
Middletown, CA
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in September
Middletown, CA
- Average wind speed in September: 4.4mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).
Average humidity in September
Middletown, CA
- Average humidity in September: 53%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (53%).
Average rainfall in September
Middletown, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is February (3.78").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Middletown, CA
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is August (0.8 days).
Average snowfall in September
Middletown, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Middletown, CA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and March (0.1 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Middletown, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Middletown, CA
- Average sunshine days in September: 27.4 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (15.8 days).
Average UV index in September
Middletown, CA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Middletown, CA
- Average cloud cover in September: 9
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in September
Middletown, CA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is March (5mi).
Middletown, California, USA
Weather forecast for your location
2. Allow the app to use your location
