May weather forecast
Garwin, IA

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Weather in May

The last month of the spring, May, is a pleasant month in Garwin, Iowa, with an average temperature fluctuating between 52.2°F (11.2°C) and 68.9°F (20.5°C).

Temperature

An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a moderate 57.7°F (14.3°C) to an agreeable 68.9°F (20.5°C). In the month of May, Garwin experiences an average low-temperature of 52.2°F (11.2°C).

Humidity

In May, the average relative humidity is 78%.

Rainfall

The month with the most rainfall is May, when the rain falls for 17.2 days and typically aggregates up to 4.13" (105mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Garwin aggregates 0.28" (7mm) of snow. Throughout the year, in Garwin, there are 38.6 snowfall days, and 14.29" (363mm) of snow is accumulated.

Daylight

In Garwin, the average length of the day in May is 14h and 35min.
On the first day of the month, sunrise is at 6:05 am and sunset at 8:10 pm. On the last day of May, in Garwin, sunrise is at 5:37 am and sunset at 8:39 pm CDT.

Sunshine

In Garwin, the average sunshine in May is 8.3h.

UV index

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 5 in May translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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 Garwin in May?

In May, in Garwin, the average high-temperature is 68.9°F (20.5°C), and the average low-temperature is 52.2°F (11.2°C).

What is the average humidity in May in Garwin?

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

What is the rainiest month in Garwin?

May is the month with the most rainfall in Garwin, Iowa. Rain falls for 17.2 days and accumulates 4.13" (105mm) of precipitation.

How many days does it rain in May in Garwin?

In Garwin, during May, the rain falls for 17.2 days and regularly aggregates up to 4.13" (105mm) of precipitation.

What is the last month it snows in Garwin?

May is the last month it regularly snows in Garwin, Iowa. During 0.2 snowfall days, in May, Garwin aggregates 0.28" (7mm) of snow.

How many hours of daylight does Garwin have in May?

The average day length in May in Garwin, Iowa, is 14h and 35min.

When are sunrise and sunset in May in Garwin?

In May, on the first day of the month, sunrise is at 6:05 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:39 pm CDT.

How many hours of sunshine does Garwin have in May?

In Garwin, Iowa, the average sunshine duration in May is 8.3h.

What is the UV index reading in May in Garwin?

In May, the average daily maximum UV index in Garwin, Iowa, is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
Garwin, IA

Average temperature in May - Garwin, IA
  • Average high temperature in May: 68.9°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in May: 52.2°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in May
Garwin, IA

Average pressure in May - Garwin, IA
  • Average pressure in May: 29.93"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
Garwin, IA

Average wind speed in May - Garwin, IA
  • Average wind speed in May: 9.3mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in May
Garwin, IA

Average humidity in May - Garwin, 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 (72%).

Average rainfall in May
Garwin, IA

Average rainfall in May - Garwin, IA
  • Average rainfall in May: 4.13"

The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (0.98").

Average rainfall days in May
Garwin, IA

Average rainfall days in May - Garwin, IA
  • Average rainfall days in May: 17.2 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (4.1 days).

Average snowfall in May
Garwin, IA

Average snowfall in May - Garwin, IA
  • Average snowfall in May: 0.28"

The month with the highest snowfall is January (4.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Garwin, IA

Average snowfall days in May - Garwin, IA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Garwin, IA

Average daylight in May / Average sunshine in May - Garwin, 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 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in May
Garwin, IA

Average sunshine days in May - Garwin, IA
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in May
Garwin, IA

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

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

Average cloud cover in May
Garwin, IA

Average cloud cover in May - Garwin, IA
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 32).

Average visibility in May
Garwin, IA

Average visibility in May - Garwin, IA
  • Average visibility in May: 6mi

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

Garwin, Iowa, USA

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