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
Lewistown observes a slight uplift in the average high-temperature with the onset of April, adjusting from March's cold 40.6°F (4.8°C) to a chilly 47.8°F (8.8°C). Lewistown witnesses an average low-temperature of 31.8°F (-0.1°C) throughout the month of April.Humidity
The average relative humidity in April in Lewistown, Montana, is 68%.Rainfall
In Lewistown, in April, it is raining for 14.8 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, in Lewistown, Montana, there are 126.2 rainfall days, and 17.83" (453mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. April is the month with the most snowfall. Snow falls for 10 days and accumulates 9.13" (232mm) of snow.Daylight
In April, the average length of the day is 13h and 38min.On the first day of April, sunrise is at 6:54 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:27 pm MDT.
Sunshine
The average sunshine in April is 9h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Lewistown. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In April, the UV index of 2 transforms into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What are April temperatures in Lewistown?
What is the average humidity in April in Lewistown?
How many days does it rain in April in Lewistown?
When does it snow the most in Lewistown?
How many days does it snow in April in Lewistown?
What is the average length of the day in April in Lewistown?
When is the sunrise / sunset in April in Lewistown?
How long on average sun shines in April in Lewistown?
What are the months with the lowest UV index in Lewistown?
What is the UV index intensity in April in Lewistown?
Average temperature in April
Lewistown, MT
- Average high temperature in April: 47.8°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The months with the lowest average high temperature are February and December (29.1°F).
- Average low temperature in April: 31.8°F
The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).
Average pressure in April
Lewistown, MT
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in April
Lewistown, MT
- Average wind speed in April: 9.9mph
The windiest months (with the highest average wind speed) are January, April and October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).
Average humidity in April
Lewistown, MT
- Average humidity in April: 68%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (47%).
Average rainfall in April
Lewistown, MT
- Average rainfall in April: 2.36"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days in April
Lewistown, MT
- Average rainfall days in April: 14.8 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in April
Lewistown, MT
- Average snowfall in April: 9.13"
The month with the highest snowfall is April (9.13").
The months with the least snowfall are July and August (0").
Average snowfall days in April
Lewistown, MT
- Average snowfall days in April: 10 days
The month with the highest number of snowfall days is February (15.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in April /
Average sunshine in April
Lewistown, MT
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- 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 30min).
Average sunshine days in April
Lewistown, MT
- Average sunshine days in April: 8.3 days
The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (8.3 days).
Average UV index in April
Lewistown, 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, March, April, October, November and December (UV index 2).
Average cloud cover in April
Lewistown, MT
- Average cloud cover in April: 42
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in April
Lewistown, 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).
Lewistown, Montana, USA
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