May weather forecast
Mount Sterling, IA

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Weather in May

May, the last month of the spring in Mount Sterling, is an agreeable month, with temperature in the range of an average high of 70.9°F (21.6°C) and an average low of 54.1°F (12.3°C).

Temperature

Noticing a change, the average high-temperature during May moves from April's comfortable 61.3°F (16.3°C) to an agreeable 70.9°F (21.6°C). Throughout May, Mount Sterling witnesses a nighttime temperature average of 54.1°F (12.3°C).

Humidity

The average relative humidity in May in Mount Sterling is 81%.

Rainfall

In Mount Sterling, in May, during 17.8 rainfall days, 3.82" (97mm) of precipitation is typically accumulated. In Mount Sterling, Iowa, during the entire year, the rain falls for 136.6 days and collects up to 28.5" (724mm) of precipitation.

Snowfall

In Mount Sterling, snow does not fall in May through September.

Daylight

In Mount Sterling, the average length of the day in May is 14h and 28min.
On the first day of the month, sunrise is at 6:05 am and sunset at 8:04 pm. On the last day of May, sunrise is at 5:39 am and sunset at 8:32 pm CDT.

Sunshine

The average sunshine in May is 8.8h.

UV index

In May, the average daily maximum UV index in Mount Sterling is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum daily UV index of 5 during May morphs into the following directions:
Take necessary precautions - Suggestions to elude sunburn are provided. It's recommended to limit sun exposure when its radiation is at its peak during midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Mount Sterling in May?

May temperatures in Mount Sterling, Iowa, vary between a high-temperature of 70.9°F (21.6°C) and a low-temperature of 54.1°F (12.3°C).

What is the average humidity in May in Mount Sterling?

In Mount Sterling, Iowa, the average relative humidity in May is 81%.

How much does it rain in Mount Sterling in May?

In Mount Sterling, Iowa, in May, it is raining for 17.8 days, with typically 3.82" (97mm) of accumulated precipitation.

When it does not snow in Mount Sterling?

May through September are months without snowfall in Mount Sterling.

Does it snow in Mount Sterling in May?

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

What is the average length of the day in May in Mount Sterling?

In May, the average day length in Mount Sterling, Iowa, is 14h and 28min.

What time are sunrise and sunset in May in Mount Sterling?

In May, on the first day of the month, sunrise is at 6:05 am and sunset at 8:04 pm. On the last day of the month, in Mount Sterling, sunrise is at 5:39 am and sunset at 8:32 pm CDT.

How many hours of sunshine does Mount Sterling have in May?

In Mount Sterling, Iowa, the average sunshine duration in May is 8.8h.

How high is the UV index in May in Mount Sterling?

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

Average temperature in May
Mount Sterling, IA

Average temperature in May - Mount Sterling, IA
  • Average high temperature in May: 70.9°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in May: 54.1°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in May
Mount Sterling, IA

Average pressure in May - Mount Sterling, IA
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in May
Mount Sterling, IA

Average wind speed in May - Mount Sterling, IA
  • Average wind speed in May: 8.7mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

Average humidity in May
Mount Sterling, IA

Average humidity in May - Mount Sterling, IA
  • Average humidity in May: 81%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Mount Sterling, IA

Average rainfall in May - Mount Sterling, IA
  • Average rainfall in May: 3.82"

The wettest month (with the highest rainfall) is June (4.09").
The driest month (with the least rainfall) is January (1.14").

Average rainfall days in May
Mount Sterling, IA

Average rainfall days in May - Mount Sterling, IA
  • Average rainfall days in May: 17.8 days

The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in May
Mount Sterling, IA

Average snowfall in May - Mount Sterling, IA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Mount Sterling, IA

Average snowfall days in May - Mount Sterling, IA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Mount Sterling, IA

Average daylight in May / Average sunshine in May - Mount Sterling, IA
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in May
Mount Sterling, IA

Average sunshine days in May - Mount Sterling, IA
  • Average sunshine days in May: 10.3 days

The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (10.3 days).

Average UV index in May
Mount Sterling, IA

Average UV index in May - Mount Sterling, IA
  • Average UV index in May: 5

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

Average cloud cover in May
Mount Sterling, IA

Average cloud cover in May - Mount Sterling, IA
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).

Average visibility in May
Mount Sterling, IA

Average visibility in May - Mount Sterling, IA
  • 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).

Mount Sterling, Iowa, USA

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