Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
As Heron enters April, the average high-temperature increases from the an icy 39.2°F (4°C) of March to a frosty 48.7°F (9.3°C). Heron, during the nights of April, experiences an average temperature drop to a freezing cold 30.6°F (-0.8°C).Humidity
In Heron, the average relative humidity in April is 78%.Rainfall
In Heron, in April, it is raining for 19.3 days, with typically 2.52" (64mm) of accumulated precipitation. In Heron, Montana, during the entire year, the rain falls for 161.9 days and collects up to 27.48" (698mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Heron, in April, snow falls for 5.2 days, with typically accumulated 1.97" (50mm) of snow. In Heron, during the entire year, snow falls for 80.8 days and aggregates up to 60" (1524mm) of snow.Daylight
In Heron, the average length of the day in April is 13h and 42min.On the first day of April in Heron, sunrise is at 7:20 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 8:56 pm MDT.
Sunshine
In April, the average sunshine is 8.1h.UV index
In April, the average daily maximum UV index in Heron, Montana, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: In April, the average maximum UV index of 2 translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the temperature in April in Heron?
What is the average humidity in April in Heron?
How much does it rain in Heron in April?
How much does it snow in Heron in April?
What is the average length of the day in April in Heron?
What time are sunrise and sunset in April in Heron?
How many hours of sunshine does Heron have in April?
What is the UV index intensity in April in Heron?
Average temperature in April
Heron, MT
- Average high temperature in April: 48.7°F
The warmest month (with the highest average high temperature) is August (78.3°F).
The month with the lowest average high temperature is December (29.3°F).
- Average low temperature in April: 30.6°F
The month with the highest average low temperature is August (49.1°F).
The coldest month (with the lowest average low temperature) is December (18.7°F).
Average pressure in April
Heron, MT
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in April
Heron, MT
- Average wind speed in April: 4.5mph
The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity in April
Heron, MT
- Average humidity in April: 78%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (52%).
Average rainfall in April
Heron, MT
- Average rainfall in April: 2.52"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is August (0.55").
Average rainfall days in April
Heron, MT
- Average rainfall days in April: 19.3 days
The month with the highest number of rainy days is April (19.3 days).
The month with the least rainy days is August (6.9 days).
Average snowfall in April
Heron, MT
- Average snowfall in April: 1.97"
The month with the highest snowfall is January (15.87").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Heron, MT
- Average snowfall days in April: 5.2 days
The month with the highest number of snowfall days is December (19.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Heron, MT
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in April
Heron, MT
- Average sunshine days in April: 7.6 days
The month with the most sunshine days is July (20.9 days).
The month with the least sunshine days is March (7.1 days).
Average UV index in April
Heron, MT
- Average UV index in April: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in April
Heron, MT
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in April
Heron, MT
- Average visibility in April: 5mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
Heron, Montana, USA
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