May weather forecastWestwood, IA
May
Weather in May
The last month of the spring, May, is a pleasant month in Westwood, Iowa, with an average temperature ranging between min 53.8°F (12.1°C) and max 70.9°F (21.6°C).Temperature
Westwood's weather in May shows a rise in the average high-temperature, moving up from April's comfortable 60.8°F (16°C) to a pleasant 70.9°F (21.6°C). Throughout May, the temperature falls to an average low of 53.8°F (12.1°C).Humidity
In Westwood, the average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 4.29" (109mm) of precipitation.Snowfall
In Westwood, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 29min.On the first day of the month, sunrise is at 6:03 am and sunset at 8:03 pm. On the last day of May, in Westwood, sunrise is at 5:36 am and sunset at 8:31 pm CDT.
Sunshine
The average sunshine in May in Westwood is 8.6h.UV index
In May, the average daily maximum UV index in Westwood is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Westwood, IA
- Average high temperature in May: 70.9°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 53.8°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in May
Westwood, 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 (29.9"Hg).
Average wind speed in May
Westwood, IA
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in May
Westwood, IA
- Average humidity in May: 79%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Westwood, IA
- Average rainfall in May: 4.29"
The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.38").
Average rainfall days in May
Westwood, IA
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in May
Westwood, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Westwood, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.6 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
Westwood, IA
- Average daylight in May: 14h and 30min
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 18min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Westwood, IA
- Average sunshine days in May: 10.6 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in May
Westwood, IA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Westwood, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility in May
Westwood, IA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





