Los Alamos
California, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Los Alamos, CA

The first month of the autumn, September, is also a moderately hot month in Los Alamos, California, with average temperature ranging between max 82.4°F (28°C) and min 51.8°F (11°C).

Temperature

August and September, with an average high-temperature of 82.4°F (28°C), are the warmest months.

Rainfall

Months with rainfall in Los Alamos are January through June, September through December. September is the first month it rains. Throughout September, Los Alamos receives 0.2" (5mm) of precipitation. Throughout the year, in Los Alamos, 15.5" (394mm) of rain is accumulated.

Daylight

In September, the average length of the day is 12.4h.

What is the warmest month in Los Alamos?

Warmest months in Los Alamos are August and September, with an average high-temperature of 82.4°F (28°C).

What is the temperature in September in Los Alamos?

In September, in Los Alamos, California, the average high-temperature is 82.4°F (28°C), and the average low-temperature is 51.8°F (11°C).

When does it start raining in Los Alamos?

September is the first month it rains. Throughout September, Los Alamos receives 0.2" (5mm) of precipitation.

How many hours of daylight does Los Alamos have in September?

The average length of the day in September is 12.4h.
Average temperature in September - Los Alamos, CA
  • Average high temperature in September: 82.4°F

Warmest months (with the highest average high temperature) are August and September (82.4°F).
Months with the lowest average high temperature are January, February and December (64.4°F).

  • Average low temperature in September: 51.8°F

The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (35.6°F).

Average rainfall in September - Los Alamos, CA
  • Average rainfall in September: 0.2"

Wettest months (with the highest rainfall) are January and February (3.2").
Driest months (with the lowest rainfall) are July and August (0").

Average daylight in September - Los Alamos, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.9h).