May weather forecast
Los Alamos, NM

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Weather in May

May stands at the threshold between spring and summer in Los Alamos. The town basks in a pleasant climate, perfect for outdoor activities and exploring the outdoors. Witness the stunning sights of the valley dipped in the splendid light of longer days. The temperature high of 68.5°F (20.3°C) mirrors the warmth of May. The city flaunts a perfect harmony between the azure of the sky and the bustling life beneath it.

Temperature

May introduces a minor temperature shift, with average high-temperatures adjusting from April's mild 59.7°F (15.4°C) to a pleasant 68.5°F (20.3°C). Los Alamos registers a significant reduction from the day's heat, with an average temperature drop to a frosty 43.7°F (6.5°C) in May.

Humidity

In Los Alamos, New Mexico, the average relative humidity in May is 35%.

Rainfall

In May, the rain falls for 7.1 days. Throughout May, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 106.2 rainfall days, and 12.05" (306mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Los Alamos. During 0.3 snowfall days, in May, Los Alamos aggregates 0.16" (4mm) of snow. Throughout the year, there are 30.9 snowfall days, and 19.69" (500mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 5min.
On the first day of the month, sunrise is at 6:11 am and sunset at 7:52 pm. On the last day of May, sunrise is at 5:50 am and sunset at 8:15 pm MDT.

Sunshine

In May, the average sunshine is 11.8h.

UV index

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 5 in May translates into these instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Los Alamos in May?

The high-temperature in Los Alamos during May is 68.5°F (20.3°C) and the low-temperature is 43.7°F (6.5°C).

What is the average humidity in May?

In Los Alamos, the average relative humidity in May is 35%.

How much does it rain in May?

In Los Alamos, in May, it is raining for 7.1 days, with typically 0.67" (17mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Los Alamos aggregates 0.16" (4mm) of snow.

What is the average length of the day in May?

In May, the average day length is 14h and 5min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:11 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:15 pm MDT.

How many hours of sunshine does Los Alamos have in May?

In May, the average sunshine duration is 11.8h.

What is the UV index reading in May?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Los Alamos, NM

Average temperature in May - Los Alamos, NM
  • Average high temperature in May: 68.5°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in May: 43.7°F

The month with the highest average low temperature is July (59.2°F).
The coldest months (with the lowest average low temperature) are January and December (21.6°F).

Average pressure in May
Los Alamos, NM

Average pressure in May - Los Alamos, NM
  • Average pressure in May: 29.9"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is April (29.89"Hg).

Average wind speed in May
Los Alamos, NM

Average wind speed in May - Los Alamos, NM
  • Average wind speed in May: 8mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in May
Los Alamos, NM

Average humidity in May - Los Alamos, NM
  • Average humidity in May: 35%

The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is June (33%).

Average rainfall in May
Los Alamos, NM

Average rainfall in May - Los Alamos, NM
  • Average rainfall in May: 0.67"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is April (0.39").

Average rainfall days in May
Los Alamos, NM

Average rainfall days in May - Los Alamos, NM
  • Average rainfall days in May: 7.1 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is November (5.1 days).

Average snowfall in May
Los Alamos, NM

Average snowfall in May - Los Alamos, NM
  • Average snowfall in May: 0.16"

The month with the highest snowfall is January (5.24").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Los Alamos, NM

Average snowfall days in May - Los Alamos, NM
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is December (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Los Alamos, NM

Average daylight in May / Average sunshine in May - Los Alamos, NM
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in May: 11h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 6min).

Average sunshine days in May
Los Alamos, NM

Average sunshine days in May - Los Alamos, NM
  • Average sunshine days in May: 20.8 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is July (8.9 days).

Average UV index in May
Los Alamos, NM

Average UV index in May - Los Alamos, NM
  • Average UV index in May: 5

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Los Alamos, NM

Average cloud cover in May - Los Alamos, NM
  • Average cloud cover in May: 12

The month with the most cloud cover is January (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 10).

Average visibility in May
Los Alamos, NM

Average visibility in May - Los Alamos, NM
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Los Alamos, New Mexico, USA

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