April weather forecast
Castlewood, CO

Share

Weather in April

April in Castlewood, Colorado, is a refreshing spring month, with an average temperature ranging between max 58.8°F (14.9°C) and min 34.9°F (1.6°C).

Temperature

April's arrival signals a subtle increase in average high-temperatures, moving from March's cool 52.3°F (11.3°C) to a mild 58.8°F (14.9°C). Despite the high peak temperatures, Castlewood witnesses an average nighttime cooling to an icy 34.9°F (1.6°C) in April.

Humidity

In April, the average relative humidity in Castlewood is 51%.

Rainfall

In Castlewood, in April, during 11.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Castlewood, during the entire year, the rain falls for 94.2 days and collects up to 11.97" (304mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall in Castlewood, Colorado, is April, when snow falls for 6.1 days and typically aggregates up to 6.34" (161mm) of snow.

Daylight

The average length of the day in April in Castlewood, Colorado, is 13h and 17min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:24 pm. On the last day of April, sunrise is at 6:00 am and sunset at 7:52 pm MDT.

Sunshine

In Castlewood, the average sunshine in April is 10.7h.

UV index

The average daily maximum UV index in April in Castlewood, Colorado, is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 3 in April translates into these instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
[Resources]

Frequently asked questions

What is the average April temperature in Castlewood?

In April, in Castlewood, the average high-temperature is 58.8°F (14.9°C), and the average low-temperature is 34.9°F (1.6°C).

What is the average humidity in April in Castlewood?

The average relative humidity in April in Castlewood is 51%.

How many days does it rain in April in Castlewood?

In April, in Castlewood, the rain falls for 11.3 days. Throughout April, 1.42" (36mm) of precipitation is accumulated.

When does it snow the most in Castlewood?

April is the month with the most snowfall in Castlewood. Snow falls for 6.1 days and accumulates 6.34" (161mm) of snow.

How many days does it snow in April in Castlewood?

In Castlewood, in April, snow falls for 6.1 days, with typically accumulated 6.34" (161mm) of snow.

What is the average length of the day in April in Castlewood?

In Castlewood, the average day length in April is 13h and 17min.

When is the sunrise / sunset in April in Castlewood?

On the first day of April in Castlewood, sunrise is at 6:42 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:52 pm MDT.

How long on average sun shines in April in Castlewood?

In Castlewood, the average sunshine duration in April is 10.7h.

What is the UV index reading in April in Castlewood?

The average daily maximum UV index in April in Castlewood, Colorado, is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Castlewood, CO

Average temperature in April - Castlewood, CO
  • Average high temperature in April: 58.8°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 April: 34.9°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).

[Resources]

Average pressure in April
Castlewood, CO

Average pressure in April - Castlewood, CO
  • Average pressure in April: 29.91"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).

[Resources]

Average wind speed in April
Castlewood, CO

Average wind speed in April - Castlewood, CO
  • Average wind speed in April: 7.8mph

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).

[Resources]

Average humidity in April
Castlewood, CO

Average humidity in April - Castlewood, CO
  • Average humidity in April: 51%

The month with the highest relative humidity is February (65%).
The months with the lowest relative humidity are June, August and September (43%).

[Resources]

Average rainfall in April
Castlewood, CO

Average rainfall in April - Castlewood, CO
  • Average rainfall in April: 1.42"

The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is September (0.47").

[Resources]

Average rainfall days in April
Castlewood, CO

Average rainfall days in April - Castlewood, CO
  • Average rainfall days in April: 11.3 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).

[Resources]

Average snowfall in April
Castlewood, CO

Average snowfall in April - Castlewood, CO
  • Average snowfall in April: 6.34"

The month with the highest snowfall is April (6.34").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in April
Castlewood, CO

Average snowfall days in April - Castlewood, CO
  • Average snowfall days in April: 6.1 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).

[Resources]

Average daylight in April /
Average sunshine in April
Castlewood, CO

Average daylight in April / Average sunshine in April - Castlewood, CO
  • Average daylight in April: 13h and 2min

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 April: 10h and 4min

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).

[Resources]

Average sunshine days in April
Castlewood, CO

Average sunshine days in April - Castlewood, CO
  • Average sunshine days in April: 12.7 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).

[Resources]

Average UV index in April
Castlewood, CO

Average UV index in April - Castlewood, CO
  • Average UV index in April: 3

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).

[Resources]

Average cloud cover in April
Castlewood, CO

Average cloud cover in April - Castlewood, CO
  • Average cloud cover in April: 26

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).

[Resources]

Average visibility in April
Castlewood, CO

Average visibility in April - Castlewood, CO
  • Average visibility in April: 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).

[Resources]

Castlewood, Colorado, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location