April weather forecastGrass Valley, OR
April
Weather in April
April in Grass Valley, Oregon, is a mild spring month, with an average temperature fluctuating between 38.5°F (3.6°C) and 57.4°F (14.1°C).Temperature
A soft shift in the average high-temperature is noticeable in April, transitioning from a chilly 49.1°F (9.5°C) in March to a moderate 57.4°F (14.1°C). During the month of April, the temperature generally drops to a low average of 38.5°F (3.6°C).Humidity
In April, the average relative humidity 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, Oregon, snow does not fall in April through October.Daylight
In April, the average length of the day is 13h and 33min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:31 pm. On the last day of April, sunrise is at 5:51 am and sunset at 8:08 pm PDT.
Sunshine
The average sunshine in April is 10.1h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 4 in April interprets into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 36min
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 6min
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).
