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
Kirkwood's September weather features a light decline in high-temperatures, reducing from an agreeable 73.2°F (22.9°C) in August to a comfortable 67.3°F (19.6°C). Kirkwood demonstrates a significant disparity from daytime highs throughout the month of September, with an average nighttime temperature of 42.3°F (5.7°C).Humidity
The average relative humidity in September in Kirkwood is 45%.Rainfall
In Kirkwood, California, in September, it is raining for 4.3 days, with typically 0.39" (10mm) of accumulated precipitation. In Kirkwood, California, during the entire year, the rain falls for 45.4 days and collects up to 26.06" (662mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Kirkwood. Throughout September, in the average 1 snowfall days, it receives 0.63" (16mm) of snow. Throughout the year, there are 83.9 snowfall days, and 153.46" (3898mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September in Kirkwood, sunrise is at 6:30 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:43 pm PDT.
Sunshine
The average sunshine in September in Kirkwood is 11.1h.UV index
The average daily maximum UV index in September in Kirkwood is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the usual temperature for Kirkwood in September?
What is the average humidity in September in Kirkwood?
How many days does it rain in September in Kirkwood?
When does it start to snow in Kirkwood?
What is the average length of the day in September in Kirkwood?
When is the sunrise / sunset in September in Kirkwood?
How many hours of sunshine does Kirkwood have in September?
What is the UV index intensity in September in Kirkwood?
Average temperature in September
Kirkwood, CA
- Average high temperature in September: 67.3°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is December (35.4°F).
- Average low temperature in September: 42.3°F
The month with the highest average low temperature is July (47.1°F).
The coldest month (with the lowest average low temperature) is December (20.1°F).
Average pressure in September
Kirkwood, CA
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Kirkwood, CA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Kirkwood, CA
- Average humidity in September: 45%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is August (41%).
Average rainfall in September
Kirkwood, CA
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is March (4.69").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in September
Kirkwood, CA
- Average rainfall days in September: 4.3 days
The month with the highest number of rainy days is May (6.9 days).
The month with the least rainy days is November (1.3 days).
Average snowfall in September
Kirkwood, CA
- Average snowfall in September: 0.63"
The month with the highest snowfall is March (33.46").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Kirkwood, CA
- Average snowfall days in September: 1 days
The month with the highest number of snowfall days is March (15.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Kirkwood, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Kirkwood, CA
- Average sunshine days in September: 25.2 days
The month with the most sunshine days is August (25.6 days).
The month with the least sunshine days is March (14.7 days).
Average UV index in September
Kirkwood, CA
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Kirkwood, CA
- Average cloud cover in September: 10
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in September
Kirkwood, CA
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).
Kirkwood, California, USA
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