May weather forecast
Portales, NM

Silhouette windmill images on a small hill in Portales in NM, below the colorful yellow, orange, and grey sunset sky
Silhouette windmill images on a small hill in Portales in NM, below the colorful yellow, orange, and grey sunset sky

Weather in May

May, the last month of the spring in Portales, is a warm month, with an average temperature varying between 80.1°F (26.7°C) and 55.4°F (13°C).

Temperature

In May, the average high-temperature marginally rises from an agreeable 72.3°F (22.4°C) in April to a warm 80.1°F (26.7°C). In Portales, in May, the average low-temperature is 55.4°F (13°C).

Humidity

In Portales, New Mexico, the average relative humidity in May is 36%.

Rainfall

In May, in Portales, the rain falls for 8 days. Throughout May, 1.02" (26mm) of precipitation is accumulated. Throughout the year, there are 86.6 rainfall days, and 11.77" (299mm) of precipitation is accumulated.

Snowfall

In Portales, snow does not fall in May through September.

Daylight

In May, the average length of the day in Portales is 13h and 58min.
On the first day of May, sunrise is at 6:03 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 7:59 pm MDT.

Sunshine

The average sunshine in May is 11.4h.

UV index

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
[Resources]

FAQ

What is the average humidity in May in Portales?

In Portales, New Mexico, the average relative humidity in May is 36%.

How much does it rain in Portales in May?

In Portales, New Mexico, in May, during 8 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

When it does not snow in Portales?

May through September are months without snowfall in Portales.

Does it snow in Portales in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Portales have in May?

In Portales, the average day length in May is 13h and 58min.

When is the sunrise / sunset in May in Portales?

On the first day of May in Portales, New Mexico, sunrise is at 6:03 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 7:59 pm MDT.

How long on average sun shines in May in Portales?

The average sunshine duration in May is 11.4h.

What is the UV index reading in May in Portales?

In Portales, New Mexico, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Portales, NM

Average temperature in May - Portales, NM
  • Average high temperature in May: 80.1°F

The warmest month (with the highest average high temperature) is June (90.7°F).
The month with the lowest average high temperature is December (50°F).

  • Average low temperature in May: 55.4°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is December (31.1°F).

[Resources]

Average pressure in May
Portales, NM

Average pressure in May - Portales, NM
  • Average pressure in May: 29.86"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

[Resources]

Average wind speed in May
Portales, NM

Average wind speed in May - Portales, NM
  • Average wind speed in May: 12.6mph

The windiest month (with the highest average wind speed) is April (13.3mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).

[Resources]

Average humidity in May
Portales, NM

Average humidity in May - Portales, NM
  • Average humidity in May: 36%

The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is April (34%).

[Resources]

Average rainfall in May
Portales, NM

Average rainfall in May - Portales, NM
  • Average rainfall in May: 1.02"

The wettest month (with the highest rainfall) is October (1.81").
The driest month (with the least rainfall) is November (0.28").

[Resources]

Average rainfall days in May
Portales, NM

Average rainfall days in May - Portales, NM
  • Average rainfall days in May: 8 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is November (2.6 days).

[Resources]

Average snowfall in May
Portales, NM

Average snowfall in May - Portales, NM
  • Average snowfall in May: 0"

The months with the highest snowfall are January and February (1.34").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in May
Portales, NM

Average snowfall days in May - Portales, NM
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is December (3.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in May /
Average sunshine in May
Portales, NM

Average daylight in May / Average sunshine in May - Portales, NM
  • Average daylight in May: 13h and 58min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 55min).

  • Average sunshine in May: 11h and 24min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 0min).

[Resources]

Average sunshine days in May
Portales, NM

Average sunshine days in May - Portales, NM
  • Average sunshine days in May: 21.4 days

The month with the most sunshine days is January (26.4 days).
The month with the least sunshine days is August (14 days).

[Resources]

Average UV index in May
Portales, NM

Average UV index in May - Portales, NM
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

[Resources]

Average cloud cover in May
Portales, NM

Average cloud cover in May - Portales, NM
  • Average cloud cover in May: 15

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 13).

[Resources]

Average visibility in May
Portales, NM

Average visibility in May - Portales, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location