Los Alamos County, NM Climate

Los Alamos, NM County has a semi-arid climate with hot summers and cold winters. The average high temperatures in the summer range from 70 to 90 degrees Fahrenheit, while the average low temperatures in the winter range from 30 to 50 degrees Fahrenheit. Precipitation is generally light and infrequent, but snowstorms can occur during the winter months. Though it's not always sunny in Los Alamos, when the sun does come out, it brings a strong sense of warmth that brightens up even the gloomiest of days.

Los Alamos County, New Mexico gets 16 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Los Alamos County averages 39 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 278 sunny days per year in Los Alamos County. The US average is 205 sunny days.

Los Alamos County gets some kind of precipitation, on average, 80 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 84 degrees
Winter Low: the January low is 19
Rain: averages 16 inches of rain a year
Snow: averages 39 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Los Alamos County is 7.4 (10=best), which means it is less comfortable than most places in New Mexico.

9 Summer - 5.6 Winter

June, August and September are the most pleasant months in Los Alamos County, while December and January are the least comfortable months.

Climate	Los Alamos, New Mexico	United States
	16.4 in.	38.1 in.
	38.5 in.	27.8 in.
	80.0 days	106.2 days
	278 days	205 days
	83.8°	85.8°
	18.6°	21.7°
	7.4	7
	6.3	4.3
	7483 ft.	2443 ft.

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Los Alamos County with an average high temperature of 83.8°, which ranks it as cooler than most places in New Mexico. In Los Alamos County, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Los Alamos County are September, August and June.

In Los Alamos County, there are 9.5 days annually when the high temperature is over 90°, which is cooler than most places in New Mexico.

January has the coldest nighttime temperatures for Los Alamos County with an average of 18.6°. This is about average compared to other places in New Mexico.

In Los Alamos County, there are 155.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New Mexico.

In Los Alamos County, there are 0.9 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in New Mexico.

Humidity is low in Los Alamos County, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.

August is the wettest month in Los Alamos County with 2.8 inches of rain, and the driest month is February with 0.7 inches. The wettest season is Autumn with 41% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 16.4 inches in Los Alamos County means that it is wetter than most places in New Mexico.

August is the rainiest month in Los Alamos County with 12.4 days of rain, and January is the driest month with only 4.5 rainy days. There are 80.0 rainy days annually in Los Alamos County, which is one of the rainiest places in New Mexico. The rainiest season is Autumn when it rains 37% of the time and the driest is Spring with only a 18% chance of a rainy day.

An annual snowfall of 38.5 inches in Los Alamos County means that it is snowier than most places in New Mexico. December is the snowiest month in Los Alamos County with 8.9 inches of snow, and 7 months of the year have significant snowfall.

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