May weather forecastCastlewood, CO
May
Weather in May
The last month of the spring, May, is a refreshing month in Castlewood, Colorado, with an average temperature ranging between max 67.1°F (19.5°C) and min 43.2°F (6.2°C).Temperature
Castlewood observes a slight ascent in average high-temperatures during May, adjusting from a mild 58.8°F (14.9°C) in April to a still refreshing 67.1°F (19.5°C). Castlewood experiences a consistent, yet significant, drop from daily highs to a low-temperature of 43.2°F (6.2°C) throughout May.Humidity
In Castlewood, the average relative humidity in May is 53%.Rainfall
The month with the most rainfall is May, when the rain falls for 14.2 days and typically aggregates up to 2.2" (56mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 1.8 snowfall days, in May, Castlewood aggregates 3.7" (94mm) of snow. In Castlewood, Colorado, during the entire year, snow falls for 46.5 days and aggregates up to 37.2" (945mm) of snow.Daylight
In Castlewood, the average length of the day in May is 14h and 22min.On the first day of May, sunrise is at 5:59 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:20 pm MDT.
Sunshine
In May, the average sunshine is 11.2h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 5 during May translates into the following directions:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Castlewood, CO
- Average high temperature in May: 67.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (40.3°F).
- Average low temperature in May: 43.2°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).
Average pressure in May
Castlewood, CO
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are April and June (29.91"Hg).
Average wind speed in May
Castlewood, CO
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest months (with the lowest average wind speed) are August and December (6.5mph).
Average humidity in May
Castlewood, CO
- Average humidity in May: 53%
The month with the highest relative humidity is February (65%).
The months with the lowest relative humidity are June, August and September (43%).
Average rainfall in May
Castlewood, CO
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in May
Castlewood, CO
- Average rainfall days in May: 14.2 days
The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is November (3.4 days).
Average snowfall in May
Castlewood, CO
- Average snowfall in May: 3.7"
The month with the highest snowfall is April (6.34").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Castlewood, CO
- Average snowfall days in May: 1.8 days
The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Castlewood, CO
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 11h and 12min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 48min).
Average sunshine days in May
Castlewood, CO
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is April (12.7 days).
Average UV index in May
Castlewood, CO
- Average UV index in May: 5
The months with the highest UV index are June, 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
Castlewood, CO
- Average cloud cover in May: 25
The month with the most cloud cover is April (Cloud cover 26).
The months with the least cloud cover are June and September (Cloud cover 15).
Average visibility in May
Castlewood, 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).
