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 start of September comes with a small reduction in the average high-temperature, subtly receding from a moderately hot 84.6°F (29.2°C) in August to a still warm 76.5°F (24.7°C). Hornbrook's temperature in September declines substantially from daytime highs, settling at a consistent average of 45.1°F (7.3°C) during the nights.Humidity
The average relative humidity in September is 54%.Rainfall
In Hornbrook, in September, it is raining for 4.3 days, with typically 0.39" (10mm) of accumulated precipitation. Throughout the year, in Hornbrook, there are 115.8 rainfall days, and 14.96" (380mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:36 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:52 pm PDT.
Sunshine
In Hornbrook, the average sunshine in September is 11h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Hornbrook, CA
- Average high temperature in September: 76.5°F
The warmest months (with the highest average high temperature) are July and August (84.6°F).
The month with the lowest average high temperature is December (41.5°F).
- Average low temperature in September: 45.1°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in September
Hornbrook, CA
- 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 August (29.96"Hg).
Average wind speed in September
Hornbrook, CA
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is March (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Hornbrook, CA
- Average humidity in September: 54%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (50%).
Average rainfall in September
Hornbrook, CA
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is December (2.56").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in September
Hornbrook, CA
- Average rainfall days in September: 4.3 days
The month with the highest number of rainy days is March (17.2 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in September
Hornbrook, CA
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hornbrook, CA
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (6.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Hornbrook, CA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Hornbrook, CA
- Average sunshine days in September: 24.5 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is March (11.5 days).
Average UV index in September
Hornbrook, CA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Hornbrook, CA
- Average cloud cover in September: 14
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in September
Hornbrook, CA
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Hornbrook, California, USA
Weather forecast for your location
2. Allow the app to use your location