May weather forecastSillsville, CO
May
Weather in May
The last month of the spring, May, is a refreshing month in Sillsville, Colorado, with temperature in the range of an average high of 55.4°F (13°C) and an average low of 30°F (-1.1°C).Temperature
As April transitions into May, a change in temperatures is observed, with average highs moving from a frosty 43.3°F (6.3°C) to a moderate 55.4°F (13°C). A considerable shift from the daytime highs is observed during May nights, with an average low of 30°F (-1.1°C).Humidity
In Sillsville, the average relative humidity in May is 54%.Rainfall
In Sillsville, in May, it is raining for 8.6 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, there are 88.8 rainfall days, and 9.61" (244mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, October through December. In Sillsville, in May, during 5.3 snowfall days, 3.31" (84mm) of snow is typically accumulated. In Sillsville, during the entire year, snow falls for 91.9 days and aggregates up to 51.77" (1315mm) of snow.Daylight
The average length of the day in May is 14h and 17min.On the first day of May in Sillsville, sunrise is at 6:08 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:24 pm MDT.
Sunshine
In Sillsville, Colorado, the average sunshine in May is 11.5h.UV index
In Sillsville, Colorado, the average daily maximum UV index in May is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 during May translates into the following guidance:
Heed the precautions - Suggestions to avoid sunburn are made. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sillsville, CO
- Average high temperature in May: 55.4°F
The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in May: 30°F
The month with the highest average low temperature is July (44.6°F).
The coldest month (with the lowest average low temperature) is January (1.8°F).
Average pressure in May
Sillsville, CO
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is April (29.94"Hg).
Average wind speed in May
Sillsville, CO
- Average wind speed in May: 6.3mph
The windiest months (with the highest average wind speed) are May and June (6.3mph).
The calmest month (with the lowest average wind speed) is December (4.5mph).
Average humidity in May
Sillsville, CO
- Average humidity in May: 54%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (44%).
Average rainfall in May
Sillsville, CO
- Average rainfall in May: 0.91"
The wettest months (with the highest rainfall) are February and March (1.18").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in May
Sillsville, CO
- Average rainfall days in May: 8.6 days
The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is October (4.1 days).
Average snowfall in May
Sillsville, CO
- Average snowfall in May: 3.31"
The month with the highest snowfall is February (9.37").
The months with the least snowfall are July, August and September (0").
Average snowfall days in May
Sillsville, CO
- Average snowfall days in May: 5.3 days
The month with the highest number of snowfall days is February (16.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Sillsville, CO
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 11h and 30min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).
Average sunshine days in May
Sillsville, CO
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is June (23.1 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in May
Sillsville, CO
- Average UV index in May: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in May
Sillsville, CO
- Average cloud cover in May: 19
The month with the most cloud cover is February (Cloud cover 35).
The months with the least cloud cover are June and September (Cloud cover 12).
Average visibility in May
Sillsville, CO
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
