April weather forecast
Colstrip, MT

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Weather in April

April marks a more definitive shift toward spring in Colstrip. Although it may seem like it is time to shelve the jackets, April records the highest frequency of rainfall at 1.69" (43mm) making it the wettest month of the year. Simultaneously, the snowfall all but ceases demonstrating the real transition from winter to warmer times. This month's weather pattern rewards residents with an increased level of sun as daylight hours extend. Rising temperatures and humidity levels suggest the onset of a warmer period.

Temperature

The start of April is characterized by a subtle increase in the average high-temperature, transitioning from a chilly 45°F (7.2°C) in March to a fresh 53.8°F (12.1°C). Colstrip observes an average low-temperature of 35.4°F (1.9°C) during April nights.

Humidity

The average relative humidity in April is 63%.

Rainfall

In Colstrip, in April, it is raining for 13.1 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, there are 113.9 rainfall days, and 14.84" (377mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall. In Colstrip, in April, snow falls for 5.3 days, with typically accumulated 3.82" (97mm) of snow. In Colstrip, during the entire year, snow falls for 55.2 days and aggregates up to 23.5" (597mm) of snow.

Daylight

In April, the average length of the day is 13h and 35min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:35 pm. On the last day of April, in Colstrip, sunrise is at 5:53 am and sunset at 8:13 pm MDT.

Sunshine

In April, the average sunshine is 9h.

UV index

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In April, a daily UV index of 2 turns into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Frequently asked questions

What are April temperatures?

The high-temperature, in April, in Colstrip, records 53.8°F (12.1°C), while the low-temperature is 35.4°F (1.9°C).

What is the average humidity in April?

The average relative humidity in April is 63%.

How many days does it rain in April?

In Colstrip, in April, during 13.1 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

How many days does it snow in April?

In Colstrip, in April, snow falls for 5.3 days, with typically accumulated 3.82" (97mm) of snow.

What is the average length of the day in April?

The average day length in April is 13h and 35min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:44 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:13 pm MDT.

How long on average sun shines in April?

In April, the average sunshine duration is 9h.

When is the lowest UV index?

January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in April?

In April, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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
Colstrip, MT

Average temperature in April - Colstrip, MT
  • Average high temperature in April: 53.8°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 (30.4°F).

  • Average low temperature in April: 35.4°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in April
Colstrip, MT

Average pressure in April - Colstrip, MT
  • Average pressure in April: 29.92"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in April
Colstrip, MT

Average wind speed in April - Colstrip, MT
  • Average wind speed in April: 10mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

Average humidity in April
Colstrip, MT

Average humidity in April - Colstrip, MT
  • Average humidity in April: 63%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (42%).

Average rainfall in April
Colstrip, MT

Average rainfall in April - Colstrip, MT
  • Average rainfall in April: 1.69"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is December (0.47").

Average rainfall days in April
Colstrip, MT

Average rainfall days in April - Colstrip, MT
  • Average rainfall days in April: 13.1 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.8 days).

Average snowfall in April
Colstrip, MT

Average snowfall in April - Colstrip, MT
  • Average snowfall in April: 3.82"

The month with the highest snowfall is February (4.33").
The months with the least snowfall are July and August (0").

Average snowfall days in April
Colstrip, MT

Average snowfall days in April - Colstrip, MT
  • Average snowfall days in April: 5.3 days

The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in April /
Average sunshine in April
Colstrip, MT

Average daylight in April / Average sunshine in April - Colstrip, MT
  • Average daylight in April: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in April: 9h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in April
Colstrip, MT

Average sunshine days in April - Colstrip, MT
  • Average sunshine days in April: 13.1 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in April
Colstrip, MT

Average UV index in April - Colstrip, MT
  • Average UV index in April: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).

Average cloud cover in April
Colstrip, MT

Average cloud cover in April - Colstrip, MT
  • Average cloud cover in April: 42

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in April
Colstrip, MT

Average visibility in April - Colstrip, MT
  • 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).

Colstrip, Montana, USA

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