April weather forecast
Saint Johns, MT

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Weather in April

April is a fresh spring month in Saint Johns, Montana, with an average temperature varying between 53.2°F (11.8°C) and 36.3°F (2.4°C).

Temperature

April brings a temperature increase, with average high-temperatures moving from March's wintry 39.7°F (4.3°C) to a fresh 53.2°F (11.8°C). Saint Johns experiences an average low-temperature of 36.3°F (2.4°C) in the month of April.

Humidity

The average relative humidity in April is 59%.

Rainfall

In Saint Johns, in April, during 11.3 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Saint Johns, during the entire year, the rain falls for 98.7 days and collects up to 8.23" (209mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Saint Johns, in April, during 4.5 snowfall days, 1.46" (37mm) of snow is typically accumulated. In Saint Johns, during the entire year, snow falls for 53.5 days and aggregates up to 14.25" (362mm) of snow.

Daylight

In Saint Johns, the average length of the day in April is 13h and 44min.
On the first day of the month, sunrise is at 6:55 am and sunset at 7:51 pm. On the last day of April, sunrise is at 5:59 am and sunset at 8:34 pm MDT.

Sunshine

The average sunshine in April is 9.5h.

UV index

In Saint Johns, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: A daily maximum UV index of 3 in April translates into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Frequently asked questions

What is the average April temperature?

An average high-temperature, in April, in Saint Johns, is 53.2°F (11.8°C) and the average low-temperature is 36.3°F (2.4°C).

What is the average humidity in April?

In April, the average relative humidity is 59%.

How much does it rain in April?

In Saint Johns, during April, the rain falls for 11.3 days and regularly aggregates up to 0.71" (18mm) of precipitation.

How many days does it snow in April?

In April, in Saint Johns, it is snowing for 4.5 days. Throughout April, 1.46" (37mm) of snow is accumulated.

How many hours of daylight does Saint Johns have in April?

The average day length in April is 13h and 44min.

What time are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:55 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:34 pm MDT.

How many hours of sunshine does Saint Johns have in April?

In Saint Johns, the average sunshine duration in April is 9.5h.

What is the UV index intensity in April?

In Saint Johns, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
Saint Johns, MT

Average temperature in April - Saint Johns, MT
  • Average high temperature in April: 53.2°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The months with the lowest average high temperature are January and December (27.1°F).

  • Average low temperature in April: 36.3°F

The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).

Average pressure in April
Saint Johns, MT

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

The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in April
Saint Johns, MT

Average wind speed in April - Saint Johns, MT
  • Average wind speed in April: 10.6mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in April
Saint Johns, MT

Average humidity in April - Saint Johns, MT
  • Average humidity in April: 59%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (40%).

Average rainfall in April
Saint Johns, MT

Average rainfall in April - Saint Johns, MT
  • Average rainfall in April: 0.71"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is December (0.31").

Average rainfall days in April
Saint Johns, MT

Average rainfall days in April - Saint Johns, MT
  • Average rainfall days in April: 11.3 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (4 days).

Average snowfall in April
Saint Johns, MT

Average snowfall in April - Saint Johns, MT
  • Average snowfall in April: 1.46"

The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July and August (0").

Average snowfall days in April
Saint Johns, MT

Average snowfall days in April - Saint Johns, MT
  • Average snowfall days in April: 4.5 days

The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in April /
Average sunshine in April
Saint Johns, MT

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

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in April: 9h and 3min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

Average sunshine days in April
Saint Johns, MT

Average sunshine days in April - Saint Johns, MT
  • Average sunshine days in April: 12.8 days

The month with the most sunshine days is September (20.3 days).
The month with the least sunshine days is April (12.8 days).

Average UV index in April
Saint Johns, MT

Average UV index in April - Saint Johns, 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).

Average cloud cover in April
Saint Johns, MT

Average cloud cover in April - Saint Johns, MT
  • Average cloud cover in April: 39

The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 16).

Average visibility in April
Saint Johns, MT

Average visibility in April - Saint Johns, 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).

Saint Johns, Montana, USA

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