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 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 mild drop in Westmorland's average high-temperature is observed in September, transitioning from an extremely hot 107.2°F (41.8°C) in August to a torrid 100.2°F (37.9°C). Throughout the nights in September, Westmorland experiences an average low-temperature of 80.2°F (26.8°C).Humidity
In September, the average relative humidity in Westmorland is 26%.Rainfall
In September, the rain falls for 4 days. Throughout September, 0.43" (11mm) of precipitation is accumulated. In Westmorland, during the entire year, the rain falls for 31.2 days and collects up to 3.27" (83mm) of precipitation.Daylight
The average length of the day in September is 12h and 22min.On the first day of September in Westmorland, sunrise is at 6:17 am and sunset at 7:06 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:27 pm PDT.
Sunshine
The average sunshine in September in Westmorland is 10.2h.UV index
In Westmorland, California, the average daily maximum UV index in September is 8. A UV Index estimate of 8 to 10 represents a very high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 8 in September translates into the following instructions:
Immediate damage can occur to skin and eyes if left unprotected. Always take necessary precautions. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
How hot is it in Westmorland in September?
What is the average humidity in September in Westmorland?
How much does it rain in Westmorland in September?
How many hours of daylight does Westmorland have in September?
When is the sunrise / sunset in September in Westmorland?
How many hours of sunshine does Westmorland have in September?
How high is the UV index in September in Westmorland?
Average temperature in September
Westmorland, CA
- Average high temperature in September: 100.2°F
The warmest months (with the highest average high temperature) are July and August (107.2°F).
The month with the lowest average high temperature is December (67.3°F).
- Average low temperature in September: 80.2°F
The month with the highest average low temperature is August (85.6°F).
The coldest months (with the lowest average low temperature) are January and December (50.4°F).
Average pressure in September
Westmorland, CA
- Average pressure in September: 29.81"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.78"Hg).
Average wind speed in September
Westmorland, CA
- Average wind speed in September: 6.5mph
The windiest months (with the highest average wind speed) are April and May (8.1mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).
Average humidity in September
Westmorland, CA
- Average humidity in September: 26%
The month with the highest relative humidity is December (40%).
The month with the lowest relative humidity is June (22%).
Average rainfall in September
Westmorland, CA
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is July (0.67").
The driest month (with the least rainfall) is May (0.04").
Average rainfall days in September
Westmorland, CA
- Average rainfall days in September: 4 days
The month with the highest number of rainy days is July (6.4 days).
The month with the least rainy days is May (0.8 days).
Average daylight in September /
Average sunshine in September
Westmorland, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 1min
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: 7h and 0min).
Average sunshine days in September
Westmorland, CA
- Average sunshine days in September: 24.5 days
The month with the most sunshine days is May (30.1 days).
The month with the least sunshine days is August (21.6 days).
Average UV index in September
Westmorland, CA
- Average UV index in September: 8
The months with the highest UV index are July and August (UV index 9).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Westmorland, CA
- Average cloud cover in September: 7
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Westmorland, 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).
Westmorland, California, USA
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