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 April arrives, a slight rise in the average high-temperature is observed, moving from a fresh 50°F (10°C) in March to a moderate 56.3°F (13.5°C). Nightly temperatures drop to an average low of 35.2°F (1.8°C) in April.Humidity
In April, the average relative humidity in Lewiston, California, is 76%.Rainfall
In Lewiston, California, during April, the rain falls for 14.5 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 119.2 rainfall days, and 33.35" (847mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Lewiston, California. April is the last month it regularly snows. During 1.8 snowfall days, in April, Lewiston aggregates 0.47" (12mm) of snow. Throughout the year, in Lewiston, there are 21.6 snowfall days, and 28.46" (723mm) of snow is accumulated.Daylight
In Lewiston, California, the average length of the day in April is 13h and 20min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:36 pm. On the last day of April, in Lewiston, sunrise is at 6:09 am and sunset at 8:06 pm PDT.
Sunshine
In April, the average sunshine is 8.9h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 3 in April translates into these instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What is the average April temperature in Lewiston?
What is the average humidity in April in Lewiston?
How many days does it rain in April in Lewiston?
What is the last month it snows in Lewiston?
How many hours of daylight does Lewiston have in April?
When are sunrise and sunset in April in Lewiston?
How many hours of sunshine does Lewiston have in April?
What is the UV index intensity in April in Lewiston?
Average temperature in April
Lewiston, CA
- Average high temperature in April: 56.3°F
The warmest months (with the highest average high temperature) are July and August (84.6°F).
The month with the lowest average high temperature is December (45°F).
- Average low temperature in April: 35.2°F
The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is December (30°F).
Average pressure in April
Lewiston, CA
- Average pressure in April: 30.05"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed in April
Lewiston, CA
- Average wind speed in April: 4.8mph
The windiest months (with the highest average wind speed) are March and April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in April
Lewiston, CA
- Average humidity in April: 76%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is August (54%).
Average rainfall in April
Lewiston, CA
- Average rainfall in April: 2.4"
The wettest month (with the highest rainfall) is December (6.14").
The driest months (with the least rainfall) are July and August (0.16").
Average rainfall days in April
Lewiston, CA
- Average rainfall days in April: 14.5 days
The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is August (2.5 days).
Average snowfall in April
Lewiston, CA
- Average snowfall in April: 0.47"
The month with the highest snowfall is February (8.35").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Lewiston, CA
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Lewiston, CA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 8h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in April
Lewiston, CA
- Average sunshine days in April: 13 days
The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is March (10.6 days).
Average UV index in April
Lewiston, CA
- 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, November and December (UV index 2).
Average cloud cover in April
Lewiston, CA
- Average cloud cover in April: 43
The month with the most cloud cover is March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in April
Lewiston, CA
- Average visibility in April: 5mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are March and December (4mi).
Lewiston, California, USA
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