May weather forecastWashta, IA
May
Weather in May
The last month of the spring, May, is a pleasant month in Washta, Iowa, with an average temperature varying between 69.4°F (20.8°C) and 52.3°F (11.3°C).Temperature
As Washta welcomes May, the average high-temperature sees a rise, transitioning from a refreshing 57.7°F (14.3°C) in April to an agreeable 69.4°F (20.8°C). Throughout May, the nighttime temperature averages to a cool 52.3°F (11.3°C).Humidity
In May, the average relative humidity in Washta is 69%.Rainfall
In Washta, in May, it is raining for 16.3 days, with typically 3.31" (84mm) of accumulated precipitation. Throughout the year, there are 117.4 rainfall days, and 24.61" (625mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Washta aggregates 0.2" (5mm) of snow. In Washta, during the entire year, snow falls for 39.4 days and aggregates up to 16.57" (421mm) of snow.Daylight
The average length of the day in May is 14h and 38min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:23 pm. On the last day of May, sunrise is at 5:47 am and sunset at 8:53 pm CDT.
Sunshine
The average sunshine in May is 8.5h.UV index
In Washta, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In May, a regular UV index of 5 translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Washta, IA
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in May
Washta, 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).
Average wind speed in May
Washta, IA
- Average wind speed in May: 9.7mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in May
Washta, IA
- Average humidity in May: 69%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (67%).
Average rainfall in May
Washta, IA
- Average rainfall in May: 3.31"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in May
Washta, IA
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in May
Washta, IA
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Washta, IA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Washta, IA
- Average daylight in May: 14h and 36min
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 30min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Washta, IA
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in May
Washta, 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).
Average cloud cover in May
Washta, 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 July (Cloud cover 29).
Average visibility in May
Washta, 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).





