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
April brings an increase in the average high-temperature, progressing from a wintry 37°F (2.8°C) in March to a chilly 46°F (7.8°C). Nightly temperatures drop to an average low of 29.1°F (-1.6°C) in April.Humidity
In Porthill, Idaho, the average relative humidity in April is 80%.Rainfall
In Porthill, during April, the rain falls for 19.7 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 157.1 rainfall days, and 21.61" (549mm) of precipitation is accumulated.Snowfall
January through April, September through December are months with snowfall in Porthill. April is the last month it regularly snows in Porthill. During 4.1 snowfall days, in April, Porthill aggregates 1.46" (37mm) of snow. In Porthill, during the entire year, snow falls for 70.6 days and aggregates up to 41.77" (1061mm) of snow.Daylight
The average length of the day in April in Porthill is 13h and 46min.On the first day of the month, sunrise is at 7:21 am and sunset at 8:17 pm. On the last day of April, sunrise is at 6:25 am and sunset at 9:01 pm MDT.
Sunshine
In Porthill, the average sunshine in April is 8.7h.UV index
In April, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 2 during April leads to these instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Porthill in April?
What is the average humidity in April in Porthill?
How much does it rain in Porthill in April?
What is the last month it snows in Porthill?
How many hours of daylight does Porthill have in April?
When are sunrise and sunset in April in Porthill?
How long on average sun shines in April in Porthill?
What is the UV index intensity in April in Porthill?
Average temperature in April
Porthill, ID
- Average high temperature in April: 46°F
The warmest month (with the highest average high temperature) is August (76.3°F).
The month with the lowest average high temperature is December (27.3°F).
- Average low temperature in April: 29.1°F
The month with the highest average low temperature is August (47.7°F).
The coldest months (with the lowest average low temperature) are January and December (16.3°F).
Average pressure in April
Porthill, ID
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Porthill, ID
- Average wind speed in April: 4.2mph
The windiest month (with the highest average wind speed) is June (4.3mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity in April
Porthill, ID
- Average humidity in April: 80%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (55%).
Average rainfall in April
Porthill, ID
- Average rainfall in April: 1.97"
The wettest month (with the highest rainfall) is December (2.76").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in April
Porthill, ID
- Average rainfall days in April: 19.7 days
The month with the highest number of rainy days is April (19.7 days).
The month with the least rainy days is August (6.5 days).
Average snowfall in April
Porthill, ID
- Average snowfall in April: 1.46"
The month with the highest snowfall is January (11.02").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in April
Porthill, ID
- Average snowfall days in April: 4.1 days
The month with the highest number of snowfall days is December (17.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Porthill, ID
- Average daylight in April: 13h and 5min
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: 8h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in April
Porthill, ID
- Average sunshine days in April: 8.1 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is March (7.7 days).
Average UV index in April
Porthill, ID
- Average UV index in April: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in April
Porthill, ID
- Average cloud cover in April: 47
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in April
Porthill, ID
- Average visibility in April: 5mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
Porthill, Idaho, USA
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