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
A subtle shift in Rosedale's weather is observed as August turns into September, with the average high temperature reducing from a sweltering 96.8°F (36°C) to a hot 90.5°F (32.5°C). Rosedale experiences a significant contrast between daily highs and an average nighttime temperature of 61.5°F (16.4°C) during September.Humidity
In Rosedale, the average relative humidity in September is 33%.Rainfall
The months with the least rainfall are June, August and September Rain falls for 1.7 days and accumulates 0.08" (2mm) of rain.Snowfall
January, March through December are months without snowfall.Daylight
The average length of the day in September in Rosedale is 12h and 23min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:23 pm. On the last day of September, in Rosedale, sunrise is at 6:51 am and sunset at 6:41 pm PDT.
Sunshine
In Rosedale, the average sunshine in September is 11.1h.UV index
The average daily maximum UV index in September in Rosedale is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
How hot is it in Rosedale in September?
What is the average humidity in September in Rosedale?
What is the driest month in Rosedale?
How many days does it rain in September in Rosedale?
When it does not snow in Rosedale?
What is the average length of the day in September in Rosedale?
When are sunrise and sunset in September in Rosedale?
How many hours of sunshine does Rosedale have in September?
How high is the UV index in September in Rosedale?
Average temperature in September
Rosedale, CA
- Average high temperature in September: 90.5°F
The warmest month (with the highest average high temperature) is July (97.5°F).
The month with the lowest average high temperature is December (58.5°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).
Average pressure in September
Rosedale, CA
- Average pressure in September: 29.9"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Rosedale, CA
- Average wind speed in September: 4.3mph
The windiest months (with the highest average wind speed) are June and July (5mph).
The calmest months (with the lowest average wind speed) are November and December (3.9mph).
Average humidity in September
Rosedale, CA
- Average humidity in September: 33%
The months with the highest relative humidity are January, February and December (59%).
The month with the lowest relative humidity is August (30%).
Average rainfall in September
Rosedale, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is December (1.02").
The driest months (with the least rainfall) are June, August and September (0.08").
Average rainfall days in September
Rosedale, CA
- Average rainfall days in September: 1.7 days
The month with the highest number of rainy days is March (8.5 days).
The month with the least rainy days is August (0.9 days).
Average snowfall in September
Rosedale, 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
Rosedale, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Rosedale, CA
- 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: 11h and 1min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Rosedale, CA
- Average sunshine days in September: 27.9 days
The month with the most sunshine days is August (28.7 days).
The month with the least sunshine days is February (21.2 days).
Average UV index in September
Rosedale, CA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Rosedale, CA
- Average cloud cover in September: 5
The month with the most cloud cover is March (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in September
Rosedale, 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).
Rosedale, California, USA
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