May weather forecast
Spencer, IA

Share

Weather in May

The weather of May in Spencer delivers an intense version of spring. The city experiences the highest rainfall of the year with rainfall inches being 0.08" (2mm), adding to the freshness. Nature performs its best as blooming flowers spread their vibrancy around, and trees wear a thicker green coat. This period opens avenues for various activities such as digging into delicious barbeques and engaging in pleasant evening strolls. May is therefore a season of rejuvenation and an upbeat mood, as summer is predicted just around the corner.

Temperature

Spencer sees an increase in the average high-temperature with the arrival of May, moving from April's moderate 55.6°F (13.1°C) to an enjoyable 67.8°F (19.9°C). In the month of May, Spencer experiences an average low-temperature of 51.4°F (10.8°C).

Humidity

In May, the average relative humidity is 69%.

Rainfall

In Spencer, during May, the rain falls for 15.5 days and regularly aggregates up to 2.13" (54mm) of precipitation. In Spencer, during the entire year, the rain falls for 112.3 days and collects up to 15.31" (389mm) of precipitation.

Snowfall

Months with snowfall in Spencer, Iowa, are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Spencer aggregates 0.12" (3mm) of snow. Throughout the year, there are 45.5 snowfall days, and 11.14" (283mm) of snow is accumulated.

Daylight

In Spencer, the average length of the day in May is 14h and 41min.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:22 pm. On the last day of May, in Spencer, sunrise is at 5:43 am and sunset at 8:53 pm CDT.

Sunshine

In Spencer, the average sunshine in May is 8.7h.

UV index

In May, the average daily maximum UV index in Spencer is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. During bright days, sunglasses that offer UVA and UVB defense are recommended. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
[Resources]

Frequently asked questions

What are the temperatures in Spencer in May?

In May, the average high-temperature and low-temperature in Spencer, Iowa, are 67.8°F (19.9°C) and 51.4°F (10.8°C) respectively.

What is the average humidity in May in Spencer?

In Spencer, the average relative humidity in May is 69%.

How much does it rain in Spencer in May?

In May, in Spencer, the rain falls for 15.5 days. Throughout May, 2.13" (54mm) of precipitation is accumulated.

What is the last month it snows in Spencer?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Spencer aggregates 0.12" (3mm) of snow.

What is the average length of the day in May in Spencer?

In May, the average day length in Spencer, Iowa, is 14h and 41min.

When are sunrise and sunset in May in Spencer?

In May, on the first day of the month, sunrise is at 6:12 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:53 pm CDT.

How many hours of sunshine does Spencer have in May?

In Spencer, the average sunshine duration in May is 8.7h.

How high is the UV index in May in Spencer?

The average daily maximum UV index in May in Spencer, Iowa, is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Spencer, IA

Average temperature in May - Spencer, IA
  • Average high temperature in May: 67.8°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

[Resources]

Average pressure in May
Spencer, IA

Average pressure in May - Spencer, IA
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

[Resources]

Average wind speed in May
Spencer, IA

Average wind speed in May - Spencer, IA
  • Average wind speed in May: 9.7mph

The windiest months (with the highest average wind speed) are January and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

[Resources]

Average humidity in May
Spencer, IA

Average humidity in May - Spencer, IA
  • Average humidity in May: 69%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).

[Resources]

Average rainfall in May
Spencer, IA

Average rainfall in May - Spencer, IA
  • Average rainfall in May: 2.13"

The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (0.43").

[Resources]

Average rainfall days in May
Spencer, IA

Average rainfall days in May - Spencer, IA
  • Average rainfall days in May: 15.5 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.7 days).

[Resources]

Average snowfall in May
Spencer, IA

Average snowfall in May - Spencer, IA
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in May
Spencer, IA

Average snowfall days in May - Spencer, IA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 4min

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 0min).

[Resources]

Average sunshine days in May
Spencer, IA

Average sunshine days in May - Spencer, IA
  • Average sunshine days in May: 12.6 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.8 days).

[Resources]

Average UV index in May
Spencer, IA

Average UV index in May - Spencer, 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 and February (UV index 1).

[Resources]

Average cloud cover in May
Spencer, IA

Average cloud cover in May - Spencer, IA
  • Average cloud cover in May: 42

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

[Resources]

Average visibility in May
Spencer, IA

Average visibility in May - Spencer, 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).

[Resources]

Spencer, Iowa, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location