May weather forecast
Deep River, IA

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Weather in May

The last month of the spring, May, is a pleasant month in Deep River, Iowa, with temperature in the range of an average low of 52.3°F (11.3°C) and an average high of 69.3°F (20.7°C).

Temperature

May's onset is marked by a temperature increase, moving from a mild 58.6°F (14.8°C) in April to an agreeable 69.3°F (20.7°C). Deep River records an average low of 52.3°F (11.3°C) throughout the nights in May.

Humidity

The average relative humidity in May in Deep River is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 18.8 days and accumulates 4.57" (116mm) of precipitation.

Snowfall

Months with snowfall in Deep River are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Deep River aggregates 0.12" (3mm) of snow. In Deep River, during the entire year, snow falls for 39 days and aggregates up to 16.65" (423mm) of snow.

Daylight

The average length of the day in May in Deep River is 14h and 33min.
On the first day of May in Deep River, sunrise is at 6:05 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:36 pm CDT.

Sunshine

The average sunshine in May in Deep River is 8.6h.

UV index

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 5 in May leads to these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Boost your sun resistance with garments that are densely woven yet spacious. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Deep River?

The high-temperature in Deep River during May is 69.3°F (20.7°C) and the low-temperature is 52.3°F (11.3°C).

What is the average humidity in May in Deep River?

The average relative humidity in May in Deep River is 79%.

What is the rainiest month in Deep River?

The month with the most rainfall in Deep River is May, when the rain falls for 18.8 days and typically aggregates up to 4.57" (116mm) of precipitation.

How much does it rain in Deep River in May?

In Deep River, in May, it is raining for 18.8 days, with typically 4.57" (116mm) of accumulated precipitation.

What is the last month it snows in Deep River?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Deep River aggregates 0.12" (3mm) of snow.

How many hours of daylight does Deep River have in May?

In May, the average day length in Deep River, Iowa, is 14h and 33min.

When are sunrise and sunset in May in Deep River?

On the first day of May, sunrise is at 6:05 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:36 pm CDT.

How many hours of sunshine does Deep River have in May?

In Deep River, the average sunshine duration in May is 8.6h.

How high is the UV index in May in Deep River?

The average daily maximum UV index in May in Deep River, Iowa, is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Deep River, IA

Average temperature in May - Deep River, IA
  • Average high temperature in May: 69.3°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in May: 52.3°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).

Average pressure in May
Deep River, IA

Average pressure in May - Deep River, 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 (29.89"Hg).

Average wind speed in May
Deep River, IA

Average wind speed in May - Deep River, IA
  • Average wind speed in May: 9.1mph

The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in May
Deep River, IA

Average humidity in May - Deep River, IA
  • Average humidity in May: 79%

The months with the highest relative humidity are January and July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Deep River, IA

Average rainfall in May - Deep River, IA
  • Average rainfall in May: 4.57"

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in May
Deep River, IA

Average rainfall days in May - Deep River, IA
  • Average rainfall days in May: 18.8 days

The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (5 days).

Average snowfall in May
Deep River, IA

Average snowfall in May - Deep River, IA
  • Average snowfall in May: 0.12"

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

Average snowfall days in May
Deep River, IA

Average snowfall days in May - Deep River, IA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Deep River, IA

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in May
Deep River, IA

Average sunshine days in May - Deep River, IA
  • Average sunshine days in May: 9.6 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (8.3 days).

Average UV index in May
Deep River, IA

Average UV index in May - Deep River, IA
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in May
Deep River, IA

Average cloud cover in May - Deep River, IA
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in May
Deep River, IA

Average visibility in May - Deep River, IA
  • Average visibility in May: 6mi

The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).

Deep River, Iowa, USA

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