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 commencement of September brings an average high-temperature of a still hot 86.4°F (30.2°C), marking an inconsequential divergence from August. Despite drastic daytime highs, Moreno Valley logs an average low-temperature reading of 62.6°F (17°C) throughout September.Heat index
September's heat index is appraised at a tropical 87.8°F (31°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.Consider that heat index readings are for situations in the shade and light wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In September, the average relative humidity is 45%.Rainfall
In Moreno Valley, California, during September, the rain falls for 2.6 days and regularly aggregates up to 0.12" (3mm) of precipitation. Throughout the year, in Moreno Valley, there are 52.6 rainfall days, and 7.52" (191mm) of precipitation is accumulated.Snowfall
In Moreno Valley, snow does not fall in January, March through December.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:14 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:34 pm PDT.
Sunshine
In September, the average sunshine is 10.6h.UV index
In Moreno Valley, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
How hot is it in Moreno Valley in September?
What is the average humidity in September in Moreno Valley?
How much does it rain in Moreno Valley in September?
When it does not snow in Moreno Valley?
How many hours of daylight does Moreno Valley have in September?
When are sunrise and sunset in September in Moreno Valley?
How long on average sun shines in September in Moreno Valley?
How high is the UV index in September in Moreno Valley?
Average temperature in September
Moreno Valley, CA
- Average high temperature in September: 86.4°F
The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is December (60.8°F).
- Average low temperature in September: 62.6°F
The month with the highest average low temperature is August (64.8°F).
The coldest months (with the lowest average low temperature) are February and December (43.5°F).
Average pressure in September
Moreno Valley, CA
- Average pressure in September: 29.87"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Moreno Valley, CA
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity in September
Moreno Valley, CA
- Average humidity in September: 45%
The months with the highest relative humidity are February and May (56%).
The month with the lowest relative humidity is August (42%).
Average rainfall in September
Moreno Valley, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is February (1.61").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Moreno Valley, CA
- Average rainfall days in September: 2.6 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in September
Moreno Valley, 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
Moreno Valley, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Moreno Valley, CA
- 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: 10h and 4min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Moreno Valley, CA
- Average sunshine days in September: 25.1 days
The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is February (20.3 days).
Average UV index in September
Moreno Valley, CA
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in September
Moreno Valley, CA
- Average cloud cover in September: 7
The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in September
Moreno Valley, CA
- 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).
Moreno Valley, California, USA
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