April weather forecast
Ulm, MT

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Weather in April

April is a cool spring month in Ulm, Montana, with an average temperature fluctuating between 51.4°F (10.8°C) and 34.3°F (1.3°C).

Temperature

As April sets, the average high-temperature shows a slight increase, moving up from a wintry 42.6°F (5.9°C) in March to a cool 51.4°F (10.8°C). Ulm's temperature drops to an average low of 34.3°F (1.3°C) during the nights of April.

Humidity

In Ulm, Montana, the average relative humidity in April is 63%.

Rainfall

In Ulm, in April, it is raining for 14.1 days, with typically 1.61" (41mm) of accumulated precipitation. In Ulm, Montana, during the entire year, the rain falls for 112.8 days and collects up to 12.95" (329mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Ulm, Montana, in April, snow falls for 6 days, with typically accumulated 4.41" (112mm) of snow. Throughout the year, there are 69.4 snowfall days, and 35.35" (898mm) of snow is accumulated.

Daylight

In April, the average length of the day is 13h and 40min.
On the first day of the month, sunrise is at 7:02 am and sunset at 7:56 pm. On the last day of April, sunrise is at 6:09 am and sunset at 8:36 pm MDT.

Sunshine

The average sunshine in April in Ulm is 8.9h.

UV index

In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 3 in April leads to these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Ulm in April?

The average high-temperature, in April, in Ulm, is 51.4°F (10.8°C), while the average low-temperature is 34.3°F (1.3°C).

What is the average humidity in April in Ulm?

In April, the average relative humidity in Ulm is 63%.

How much does it rain in Ulm in April?

In Ulm, in April, during 14.1 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

How much does it snow in Ulm in April?

In Ulm, in April, snow falls for 6 days, with typically accumulated 4.41" (112mm) of snow.

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

The average day length in April in Ulm is 13h and 40min.

When is the sunrise / sunset in April in Ulm?

In April, on the first day of the month, sunrise is at 7:02 am and sunset at 7:56 pm. On the last day of the month, in Ulm, sunrise is at 6:09 am and sunset at 8:36 pm MDT.

How many hours of sunshine does Ulm have in April?

In April, the average sunshine duration is 8.9h.

How high is the UV index in April in Ulm?

The average daily maximum UV index in April in Ulm, Montana, is 3. A UV Index estimate of 3 to 5 represents a medium health risk from 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
Ulm, MT

Average temperature in April - Ulm, MT
  • Average high temperature in April: 51.4°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is December (29.5°F).

  • Average low temperature in April: 34.3°F

The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is December (17.4°F).

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Average pressure in April
Ulm, MT

Average pressure in April - Ulm, MT
  • Average pressure in April: 29.95"Hg

The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in April
Ulm, MT

Average wind speed in April - Ulm, MT
  • Average wind speed in April: 9.5mph

The windiest months (with the highest average wind speed) are January and November (10.7mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).

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Average humidity in April
Ulm, MT

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

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in April
Ulm, MT

Average rainfall in April - Ulm, MT
  • Average rainfall in April: 1.61"

The wettest month (with the highest rainfall) is June (2.05").
The driest months (with the least rainfall) are January and July (0.63").

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Average rainfall days in April
Ulm, MT

Average rainfall days in April - Ulm, MT
  • Average rainfall days in April: 14.1 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in April
Ulm, MT

Average snowfall in April - Ulm, MT
  • Average snowfall in April: 4.41"

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

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Average snowfall days in April
Ulm, MT

Average snowfall days in April - Ulm, MT
  • Average snowfall days in April: 6 days

The month with the highest number of snowfall days is February (14.4 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in April: 8h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).

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Average sunshine days in April
Ulm, MT

Average sunshine days in April - Ulm, MT
  • Average sunshine days in April: 10.3 days

The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is April (10.3 days).

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Average UV index in April
Ulm, MT

Average UV index in April - Ulm, MT
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in April
Ulm, MT

Average cloud cover in April - Ulm, MT
  • Average cloud cover in April: 41

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 14).

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Average visibility in April
Ulm, MT

Average visibility in April - Ulm, 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).

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Ulm, Montana, USA

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