May weather forecast
Moscow, ID

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Clean paths and scenic, neat lawns surrounding lone red barn in a field in Moscow, Idaho
Clean paths and scenic, neat lawns surrounding lone red barn in a field in Moscow, Idaho

Weather in May

May accentuates the spring weather in Moscow, with further elevation in temperatures. This month exhibits a beautiful blend of mild temperatures, frequent rainfall, and extended daylight hours, forming an enticing canvas for outdoor enthusiasts. The wind maintains a gentle rhythm and the humidity takes on a descending trend. May brings its unique charm with a welcoming ambiance and vibrant green landscapes. Showcasing its more accommodating avatar, May registers temperatures ranging from 41.5°F (5.3°C) to 63.9°F (17.7°C).

Temperature

As Moscow welcomes May, the average high-temperature sees a rise, transitioning from a fresh 54.5°F (12.5°C) in April to a refreshing 63.9°F (17.7°C). A marked difference from the daytime temperatures, Moscow's nighttime temperature falls to an average low of 41.5°F (5.3°C) in May.

Humidity

The average relative humidity in May is 70%.

Rainfall

In May, the rain falls for 16.2 days. Throughout May, 2.28" (58mm) of precipitation is accumulated. Throughout the year, there are 143.2 rainfall days, and 20.51" (521mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Moscow aggregates 0.08" (2mm) of snow. Throughout the year, there are 60.2 snowfall days, and 47.24" (1200mm) of snow is accumulated.

Daylight

The average length of the day in May is 15h and 4min.
On the first day of May, sunrise is at 5:31 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 4:57 am and sunset at 8:33 pm PDT.

Sunshine

The average sunshine in May is 10.1h.

UV index

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: The UV index of 4 in May translates into these instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.

Frequently asked questions

What are the temperatures in May?

In May, the average high-temperature and low-temperature are 63.9°F (17.7°C) and 41.5°F (5.3°C) respectively.

What is the average humidity in May?

The average relative humidity in May is 70%.

How many days does it rain in May?

In Moscow, in May, it is raining for 16.2 days, with typically 2.28" (58mm) 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, Moscow aggregates 0.08" (2mm) of snow.

What is the average length of the day in May?

The average day length in May is 15h and 4min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:31 am and sunset at 7:58 pm. On the last day of the month, in Moscow, sunrise is at 4:57 am and sunset at 8:33 pm PDT.

How many hours of sunshine does Moscow have in May?

The average sunshine duration in May is 10.1h.

What is the UV index reading in May?

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
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
Moscow, ID

Average temperature in May - Moscow, ID
  • Average high temperature in May: 63.9°F

The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (34°F).

  • Average low temperature in May: 41.5°F

The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).

Average pressure in May
Moscow, ID

Average pressure in May - Moscow, ID
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

Average wind speed in May
Moscow, ID

Average wind speed in May - Moscow, ID
  • Average wind speed in May: 5.1mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).

Average humidity in May
Moscow, ID

Average humidity in May - Moscow, ID
  • Average humidity in May: 70%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (40%).

Average rainfall in May
Moscow, ID

Average rainfall in May - Moscow, ID
  • Average rainfall in May: 2.28"

The wettest month (with the highest rainfall) is December (2.68").
The driest months (with the least rainfall) are July and August (0.47").

Average rainfall days in May
Moscow, ID

Average rainfall days in May - Moscow, ID
  • Average rainfall days in May: 16.2 days

The month with the highest number of rainy days is April (18.1 days).
The months with the least rainy days are July and August (5.9 days).

Average snowfall in May
Moscow, ID

Average snowfall in May - Moscow, ID
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (12.56").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
Moscow, ID

Average snowfall days in May - Moscow, ID
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is December (14.1 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in May /
Average sunshine in May
Moscow, ID

Average daylight in May / Average sunshine in May - Moscow, ID
  • Average daylight in May: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in May: 10h and 1min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 30min).

Average sunshine days in May
Moscow, ID

Average sunshine days in May - Moscow, ID
  • Average sunshine days in May: 12.4 days

The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (9.2 days).

Average UV index in May
Moscow, ID

Average UV index in May - Moscow, ID
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in May
Moscow, ID

Average cloud cover in May - Moscow, ID
  • Average cloud cover in May: 33

The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).

Average visibility in May
Moscow, ID

Average visibility in May - Moscow, ID
  • Average visibility in May: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).

Moscow, Idaho, USA

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