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
In September, the average high-temperature in Truckee marginally decreases from a moderately hot 78.3°F (25.7°C) in August to a pleasant 71.2°F (21.8°C). Truckee registers a prominent dip from daytime highs, with an average of 43.9°F (6.6°C) during the nights of September.Humidity
The average relative humidity in September in Truckee, California, is 44%.Rainfall
In Truckee, in September, it is raining for 2.5 days, with typically 0.2" (5mm) of accumulated precipitation. Throughout the year, in Truckee, there are 60 rainfall days, and 24.41" (620mm) of precipitation is accumulated.Snowfall
Months with snowfall in Truckee are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.6 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, in Truckee, there are 82.8 snowfall days, and 146.89" (3731mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:30 pm. On the last day of September, in Truckee, California, sunrise is at 6:56 am and sunset at 6:44 pm PDT.
Sunshine
In September, the average sunshine in Truckee is 11.2h.UV index
In Truckee, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 3 during September translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What are September temperatures in Truckee?
What is the average humidity in September in Truckee?
How much does it rain in Truckee in September?
When does it start snowing in Truckee?
How many hours of daylight does Truckee have in September?
What time are sunrise and sunset in September in Truckee?
How long on average sun shines in September in Truckee?
What is the UV index intensity in September in Truckee?
Average temperature in September
Truckee, CA
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (37°F).
- Average low temperature in September: 43.9°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).
Average pressure in September
Truckee, CA
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Truckee, CA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Truckee, CA
- Average humidity in September: 44%
The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in September
Truckee, CA
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is August (0.12").
Average rainfall days in September
Truckee, CA
- Average rainfall days in September: 2.5 days
The month with the highest number of rainy days is May (8.9 days).
The month with the least rainy days is July (2.4 days).
Average snowfall in September
Truckee, CA
- Average snowfall in September: 0.16"
The month with the highest snowfall is March (30.35").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Truckee, CA
- Average snowfall days in September: 0.6 days
The month with the highest number of snowfall days is March (16.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Truckee, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
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 12min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Truckee, CA
- Average sunshine days in September: 26.5 days
The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is March (12.8 days).
Average UV index in September
Truckee, CA
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Truckee, CA
- Average cloud cover in September: 9
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in September
Truckee, 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).
Truckee, California, USA
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