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
The start of April brings a subtle shift in the average high-temperature, edging up from March's cool 50.2°F (10.1°C) to a refreshing 56.1°F (13.4°C). Williams's average low-temperature of 34.5°F (1.4°C) in April reflects a considerable decline from the daytime peak.Humidity
The average relative humidity in April in Williams is 78%.Rainfall
In Williams, Oregon, in April, it is raining for 10.8 days, with typically 1.14" (29mm) of accumulated precipitation. In Williams, during the entire year, the rain falls for 92.5 days and collects up to 12.09" (307mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Williams. In Williams, in April, snow falls for 2.8 days, with typically accumulated 0.87" (22mm) of snow. In Williams, during the entire year, snow falls for 31 days and aggregates up to 23.39" (594mm) of snow.Daylight
In April, the average length of the day is 13h and 24min.On the first day of April in Williams, sunrise is at 6:53 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:11 pm PDT.
Sunshine
The average sunshine in April is 8.7h.UV index
In April, the average daily maximum UV index in Williams is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 3 in April translates into this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What is the usual temperature for Williams in April?
What is the average humidity in April in Williams?
How many days does it rain in April in Williams?
How many days does it snow in April in Williams?
How many hours of daylight does Williams have in April?
When is the sunrise / sunset in April in Williams?
How long on average sun shines in April in Williams?
What is the UV index intensity in April in Williams?
Average temperature in April
Williams, OR
- Average high temperature in April: 56.1°F
The warmest month (with the highest average high temperature) is August (84.4°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in April: 34.5°F
The months with the highest average low temperature are July and August (49.5°F).
The coldest month (with the lowest average low temperature) is December (28.9°F).
Average pressure in April
Williams, OR
- Average pressure in April: 30.06"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in April
Williams, OR
- Average wind speed in April: 4.1mph
The windiest month (with the highest average wind speed) is March (4.3mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in April
Williams, OR
- Average humidity in April: 78%
The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is August (60%).
Average rainfall in April
Williams, OR
- Average rainfall in April: 1.14"
The wettest month (with the highest rainfall) is January (2.01").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in April
Williams, OR
- Average rainfall days in April: 10.8 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in April
Williams, OR
- Average snowfall in April: 0.87"
The month with the highest snowfall is December (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Williams, OR
- Average snowfall days in April: 2.8 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Williams, OR
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 8h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 0min).
Average sunshine days in April
Williams, OR
- Average sunshine days in April: 16.8 days
The months with the most sunshine days are July and August (25.3 days).
The month with the least sunshine days is March (15 days).
Average UV index in April
Williams, OR
- 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
Williams, OR
- Average cloud cover in April: 48
The month with the most cloud cover is March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in April
Williams, OR
- Average visibility in April: 4mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Williams, Oregon, USA
Weather forecast for your location
2. Allow the app to use your location
