Los Alamos
New Mexico, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Los Alamos, NM

The first month of the autumn, September, is also an agreeable month in Los Alamos, New Mexico, with average temperature ranging between max 72.3°F (22.4°C) and min 47.3°F (8.5°C).

Temperature

In September, the average high-temperature slightly decreases, from a warm 78.1°F (25.6°C) in August, to a pleasant 72.3°F (22.4°C). In Los Alamos, the average low-temperature is 47.3°F (8.5°C).

Rainfall

In Los Alamos, during September, the rain falls for 9.4 days and regularly aggregates up to 2" (51.1mm) of precipitation. In Los Alamos, during the entire year, the rain falls for 97.2 days and collects up to 19" (481.9mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

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

What is the temperature in September in Los Alamos?

The average high-temperature, in September, in Los Alamos, is 72.3°F (22.4°C), while the average low-temperature is 47.3°F (8.5°C).

How much does it rain in Los Alamos in September?

In Los Alamos, New Mexico, during September, the rain falls for 9.4 days and regularly aggregates up to 2" (51.1mm) of precipitation.

Does it snow in Los Alamos in September?

In Los Alamos, New Mexico, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Los Alamos?

In Los Alamos, New Mexico, snow does not fall in June through September.

What is the average length of the day in September in Los Alamos?

The average length of the day in September in Los Alamos, New Mexico, is 12.4h.
Average temperature in September - Los Alamos, NM
  • Average high temperature in September: 72.3°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is December (39.7°F).

  • Average low temperature in September: 47.3°F

The month with the highest average low temperature is July (55.1°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average rainfall in September - Los Alamos, NM
  • Average rainfall in September: 2"

The wettest month (with the highest rainfall) is August (3.6").
The driest month (with the lowest rainfall) is February (0.9").

Average rainfall days in September - Los Alamos, NM
  • Average rainfall days in September: 9.4 days

The month with the highest number of rainy days is August (15.5 days).
The month with the lowest number of rainy days is January (5.4 days).

Average snowfall in September - Los Alamos, NM
  • Average snowfall in September: 0"

The month with the highest snowfall is January (13.7").
Months with the lowest snowfall are June, July, August and September (0").

Average snowfall days in September - Los Alamos, NM
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (4.9 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

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

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.8h).