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 arrival of September denotes a barely perceptible change in the average high-temperatures to a moderately hot 85.1°F (29.5°C) from August's 90.1°F (32.3°C). Valyermo's average nighttime temperatures present a clear contrast to its daytime highs, measured at a refreshing 61.7°F (16.5°C) in September.Humidity
In Valyermo, the average relative humidity in September is 38%.Rainfall
In Valyermo, during September, the rain falls for 3.7 days and regularly aggregates up to 0.28" (7mm) of precipitation. In Valyermo, during the entire year, the rain falls for 42.7 days and collects up to 6.38" (162mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September in Valyermo is 12h and 22min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:17 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:36 pm PDT.
Sunshine
In Valyermo, the average sunshine in September is 10.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Valyermo, CA
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is December (54.1°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is December (38.7°F).
Average pressure in September
Valyermo, CA
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Valyermo, CA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is May (8mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
Average humidity in September
Valyermo, CA
- Average humidity in September: 38%
The months with the highest relative humidity are February and December (53%).
The month with the lowest relative humidity is August (34%).
Average rainfall in September
Valyermo, CA
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is December (1.38").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Valyermo, CA
- Average rainfall days in September: 3.7 days
The month with the highest number of rainy days is March (5.2 days).
The month with the least rainy days is June (0.9 days).
Average snowfall in September
Valyermo, CA
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Valyermo, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Valyermo, 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 5min
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
Valyermo, CA
- Average sunshine days in September: 25.5 days
The month with the most sunshine days is June (28.4 days).
The month with the least sunshine days is February (22.9 days).
Average UV index in September
Valyermo, CA
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Valyermo, CA
- Average cloud cover in September: 6
The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in September
Valyermo, 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).
Valyermo, California, USA
Weather forecast for your location
2. Allow the app to use your location