Box Elder, United States — Weather in May 2027

Climate Overview

Box Elder, United States in May has warm conditions, with highs averaging 20.2°C (68°F). Rain falls on about 12 days this month. Temperatures drop noticeably between day and night.

This month falls at the end of Spring.

Daily highs in May gradually rise from around 19°C (65°F) at the start to 23°C (73°F) by month's end.

Rainfall is heaviest during the last third of the month, while the first third tends to be drier.

Expect around 11.4h of sunshine at the start of May, increasing to 11.9h by the end.

The warmest days tend to fall around the 31th, averaging 23.4°C (74°F).

Compared to April, this month is about 6°C warmer with 4 more rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

20°C / 8°C

Feels Like

18°C / 5°C

Rain

12 days · 82 mm

Sunshine

11.1h / day

Humidity

61% — Moderate

Wind

24 km/h

Wind Direction

WNW (288°)

Gusts

44 km/h

Daylight

14.8 h

Cloud Cover

54%

Clear Sky Days

4.9

UV Index

6.6 — High

Dew Point

7°C — Dry

Moon Phase

Waxing Gibbous · 66%

Snow Days

1 days · 1.8 cm

Frost Days

1 days

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 05:27

Daylight 14.8h

Sunset 20:13

What to Expect

Daytime temperatures around 20°C (68°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain usually comes in shorter passing showers rather than all-day rain.

1 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

3days (10 mm) Excellent

3days (12 mm) Excellent

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	3°C / -7°C	-1°C / -12°C	3days (10 mm) Excellent	7.1h Good	63% Muggy	2.5 Moderate	Poor	View Details
February	4°C / -8°C	-1°C / -13°C	5days (18 mm) Good	8.2h Good	58% Moderate	3.5 Moderate	Poor	View Details
March	10°C / -3°C	6°C / -7°C	6days (29 mm) Good	9.4h Good	59% Moderate	4.9 Moderate	Poor	View Details
April	15°C / 1°C	11°C / -3°C	8days (59 mm) Wet	10.2h Excellent	58% Moderate	5.8 High	Poor	View Details
May	20°C / 8°C	18°C / 5°C	12days (82 mm) Wet	11.1h Excellent	61% Muggy	6.6 High	Good	View Details
June best	28°C / 15°C	27°C / 13°C	8days (52 mm) Wet	12.9h Excellent	55% Moderate	7.5 Very High	Excellent	View Details
July best	31°C / 18°C	31°C / 17°C	8days (52 mm) Wet	13.2h Excellent	54% Moderate	7.7 Very High	Excellent	View Details
August best	30°C / 17°C	29°C / 16°C	7days (33 mm) Good	12.1h Excellent	53% Moderate	6.8 High	Excellent	View Details
September best	26°C / 13°C	24°C / 11°C	5days (28 mm) Good	10.3h Excellent	52% Moderate	5.8 High	Excellent	View Details
October	17°C / 5°C	13°C / 1°C	5days (36 mm) Good	8.7h Good	55% Moderate	4.1 Moderate	Fair	View Details
November	10°C / 0°C	6°C / -5°C	3days (12 mm) Excellent	7.6h Good	56% Moderate	2.7 Moderate	Poor	View Details
December	4°C / -6°C	0°C / -11°C	4days (20 mm) Good	6.6h Fair	60% Moderate	2.1 Moderate	Poor	View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

Temperatures drop significantly at night, so pack layers you can add or remove throughout the day.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Warm evening layerUmbrellaWaterproof jacketSunscreen (SPF 30+)SunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is May a good time to visit Box Elder?

May is typically good for visiting Box Elder, with average highs of 20°C (68°F) and around 12 rainy days. Box Elder, United States in May has warm conditions, with highs averaging 20.2°C (68°F). Rain falls on about 12 days thi

Does it rain a lot in Box Elder in May?

Box Elder typically sees around 12 rainy days in May with 82 mm (3.2 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Box Elder in May?

Nights in Box Elder during May are cool at around 8°C (46°F). Bring a jacket or sweater for evenings.

What should I pack for Box Elder in May?

With highs of 20°C (68°F) and lows of 8°C (46°F) in May, we recommend: Warm evening layer, Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses. Comfortable walking shoes are essential.

Is May among the best months weather-wise in Box Elder?

May is not the most favourable month weather-wise in Box Elder. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Box Elder in May?

The average UV index in Box Elder during May is 7 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.

How many hours of daylight are there in Box Elder in May?

Box Elder gets approximately 15 hours of daylight per day in May, with around 11 hours of sunshine.

Does it snow in Box Elder in May?

Yes, Box Elder typically sees around 1 snow days in May with roughly 2 cm (1 in) of snowfall.

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