May weather forecast
Calamus, IA

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Weather in May

May, the last month of the spring in Calamus, is a pleasant month, with an average temperature varying between 69.3°F (20.7°C) and 52.3°F (11.3°C).

Temperature

In Calamus, the average high-temperature in May increases from a moderate 57.9°F (14.4°C) in April to a pleasant 69.3°F (20.7°C). Nighttime temperature dips to a mean of 52.3°F (11.3°C) during May.

Humidity

In Calamus, the average relative humidity in May is 78%.

Rainfall

The month with the most rainfall is May, when the rain falls for 18.2 days and typically aggregates up to 4.61" (117mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Calamus, the average length of the day in May is 14h and 34min.
On the first day of May, sunrise is at 5:58 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:31 pm CDT.

Sunshine

In Calamus, the average sunshine in May is 8.6h.

UV index

In Calamus, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 5 during May translates into the following guidance:
Undertake precautions - Obligation exists to protect against skin and eye damage. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

The high-temperature 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 May, the average relative humidity is 78%.

What is the wettest month?

May is the month with the most rainfall in Calamus. Rain falls for 18.2 days and accumulates 4.61" (117mm) of precipitation.

How many days does it rain in May?

In Calamus, during May, the rain falls for 18.2 days and regularly aggregates up to 4.61" (117mm) of precipitation.

When it does not snow in Calamus?

In Calamus, Iowa, snow does not fall in May through September.

Does it snow in May?

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

How many hours of daylight does Calamus have in May?

In May, the average day length is 14h and 34min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:31 pm CDT.

How many hours of sunshine does Calamus have in May?

In May, the average sunshine duration is 8.6h.

How high is the UV index in May in Calamus?

In Calamus, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from 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
Calamus, IA

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

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in May: 52.3°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

Average pressure in May
Calamus, IA

Average pressure in May - Calamus, IA
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in May
Calamus, IA

Average wind speed in May - Calamus, IA
  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in May
Calamus, IA

Average humidity in May - Calamus, IA
  • Average humidity in May: 78%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).

Average rainfall in May
Calamus, IA

Average rainfall in May - Calamus, IA
  • Average rainfall in May: 4.61"

The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is February (1.26").

Average rainfall days in May
Calamus, IA

Average rainfall days in May - Calamus, IA
  • Average rainfall days in May: 18.2 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in May
Calamus, IA

Average snowfall in May - Calamus, IA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (5.2").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Calamus, IA

Average snowfall days in May - Calamus, IA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (11.5 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
Calamus, IA

Average daylight in May / Average sunshine in May - Calamus, IA
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
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 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in May
Calamus, IA

Average sunshine days in May - Calamus, IA
  • Average sunshine days in May: 10.7 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in May
Calamus, IA

Average UV index in May - Calamus, IA
  • Average UV index in May: 5

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

Average cloud cover in May
Calamus, IA

Average cloud cover in May - Calamus, IA
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in May
Calamus, IA

Average visibility in May - Calamus, 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).

Calamus, Iowa, USA

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