May weather forecastBroomfield, CO
May
Weather in May
May proffers sunnier times in Broomfield, complemented by a noticeable rise in temperature. A rise in maximum temperatures to an average of 66°F (18.9°C) signifies the arrival of spring in all its glory. Unpredictably, rainfall also increases during May, with a monthly average of 0.87" (22mm). Light breezes from the month’s average wind speed of 5.8mph (9.3km/h) bring forth mild and comfortable weather. As the days grow longer, the levels of sunshine reach a yearly peak.Temperature
Broomfield's weather in May shows a minor rise in the average high-temperature, moving slightly up from April's moderate 57.6°F (14.2°C) to a still refreshing 66°F (18.9°C). In May, Broomfield endures a notable temperature shift from day to night, with lows averaging at a cold 41.7°F (5.4°C).Humidity
The average relative humidity in May is 54%.Rainfall
The wettest months are May and July, with an average 0.87" (22mm) of rainfall.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 1.6 snowfall days, in May, Broomfield aggregates 0.79" (20mm) of snow. Throughout the year, there are 36.7 snowfall days, and 13.98" (355mm) of snow is accumulated.Daylight
In Broomfield, Colorado, the average length of the day in May is 14h and 24min.On the first day of the month, sunrise is at 5:59 am and sunset at 7:55 pm. On the last day of May, sunrise is at 5:33 am and sunset at 8:22 pm MDT.
Sunshine
In Broomfield, the average sunshine in May is 11.1h.UV index
The average daily maximum UV index in May in Broomfield is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 5 in May leads to these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Broomfield, CO
- Average high temperature in May: 66°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in May: 41.7°F
The month with the highest average low temperature is July (59°F).
The coldest months (with the lowest average low temperature) are February and December (20.7°F).
Average pressure in May
Broomfield, CO
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed in May
Broomfield, CO
- Average wind speed in May: 5.8mph
The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is September (5.6mph).
Average humidity in May
Broomfield, CO
- Average humidity in May: 54%
The month with the highest relative humidity is February (67%).
The month with the lowest relative humidity is August (41%).
Average rainfall in May
Broomfield, CO
- Average rainfall in May: 0.87"
The wettest months (with the highest rainfall) are May and July (0.87").
The driest month (with the least rainfall) is January (0.16").
Average rainfall days in May
Broomfield, CO
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in May
Broomfield, CO
- Average snowfall in May: 0.79"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Broomfield, CO
- Average snowfall days in May: 1.6 days
The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Broomfield, CO
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 11h and 6min
The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).
Average sunshine days in May
Broomfield, CO
- Average sunshine days in May: 12 days
The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is July (10 days).
Average UV index in May
Broomfield, CO
- Average UV index in May: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Broomfield, CO
- Average cloud cover in May: 26
The months with the most cloud cover are April and May (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in May
Broomfield, CO
- 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).
