May weather forecastWest Branch, IA
May
Weather in May
May, the last month of the spring in West Branch, is a pleasant month, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 69.6°F (20.9°C).Temperature
May sees a rise in the average high-temperature, climbing from a refreshing 58.6°F (14.8°C) in April to a pleasant 69.6°F (20.9°C). West Branch observes an average nighttime low-temperature of 52.7°F (11.5°C) during the month of May.Humidity
The average relative humidity in May is 78%.Rainfall
The month with the most rainfall in West Branch is May, when the rain falls for 18.7 days and typically aggregates up to 4.61" (117mm) of precipitation.Snowfall
May through September are months without snowfall in West Branch, Iowa.Daylight
In May, the average length of the day is 14h and 33min.On the first day of May in West Branch, Iowa, sunrise is at 6:00 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:33 pm CDT.
Sunshine
In May, the average sunshine in West Branch is 8.8h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 5 in May translates into these instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
West Branch, IA
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in May: 52.7°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 (15.4°F).
Average pressure in May
West Branch, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
West Branch, IA
- Average wind speed in May: 9mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in May
West Branch, IA
- Average humidity in May: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
West Branch, 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 January (1.3").
Average rainfall days in May
West Branch, IA
- Average rainfall days in May: 18.7 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in May
West Branch, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
West Branch, IA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
West Branch, IA
- Average daylight in May: 14h and 36min
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 48min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
West Branch, IA
- Average sunshine days in May: 9.7 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in May
West Branch, 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 December (UV index 1).
Average cloud cover in May
West Branch, 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 August (Cloud cover 29).
Average visibility in May
West Branch, 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).
