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 comes with a subtle rise, with the average high-temperature adjusting from a chilly 49.1°F (9.5°C) in March to a moderate 57.4°F (14.1°C). An average nighttime temperature of 38.5°F (3.6°C) is witnessed in Grass Valley throughout April.Humidity
In Grass Valley, the average relative humidity in April is 66%.Rainfall
In Grass Valley, in April, it is raining for 11.4 days, with typically 0.75" (19mm) of accumulated precipitation. In Grass Valley, during the entire year, the rain falls for 112.2 days and collects up to 10.91" (277mm) of precipitation.Snowfall
In Grass Valley, snow does not fall in April through October.Daylight
In April, the average length of the day in Grass Valley is 13h and 33min.On the first day of April, sunrise is at 6:41 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:08 pm PDT.
Sunshine
The average sunshine in April is 10.1h.UV index
In April, the average daily maximum UV index in Grass Valley, Oregon, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 4 in April translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What is the usual temperature for Grass Valley in April?
What is the average humidity in April in Grass Valley?
How many days does it rain in April in Grass Valley?
When it does not snow in Grass Valley?
Does it snow in Grass Valley in April?
What is the average length of the day in April in Grass Valley?
When is the sunrise / sunset in April in Grass Valley?
How many hours of sunshine does Grass Valley have in April?
How high is the UV index in April in Grass Valley?
Average temperature in April
Grass Valley, OR
- Average high temperature in April: 57.4°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (37.4°F).
- Average low temperature in April: 38.5°F
The month with the highest average low temperature is August (57.9°F).
The coldest month (with the lowest average low temperature) is December (27°F).
Average pressure in April
Grass Valley, OR
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.95"Hg).
Average wind speed in April
Grass Valley, OR
- Average wind speed in April: 7.1mph
The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5mph).
Average humidity in April
Grass Valley, OR
- Average humidity in April: 66%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (46%).
Average rainfall in April
Grass Valley, OR
- Average rainfall in April: 0.75"
The wettest month (with the highest rainfall) is January (1.93").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in April
Grass Valley, OR
- Average rainfall days in April: 11.4 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (2.9 days).
Average snowfall in April
Grass Valley, OR
- Average snowfall in April: 0"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Grass Valley, OR
- Average snowfall days in April: 0 days
The months with the highest number of snowfall days are February and December (3.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Grass Valley, OR
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in April: 10h and 1min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in April
Grass Valley, OR
- Average sunshine days in April: 16.1 days
The month with the most sunshine days is July (27 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in April
Grass Valley, OR
- Average UV index in April: 4
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
Grass Valley, OR
- Average cloud cover in April: 34
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in April
Grass Valley, OR
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Grass Valley, Oregon, USA
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