April weather forecastKeizer, OR
April
Weather in April
April marks the departure from more frigid temperatures, and commences the arrival of the idyllic spring weather in Keizer, Oregon. Rainfall decreases to 2.32" (59mm), signalling a push towards drier conditions. The climate is typified by a blend of gentle breezes, balmy afternoons, and mild, calm nights. The appearance of colorful blossoms offers a pleasing visual cue for the commencement of spring. The warmth continues to escalate gradually, making room for more sunlight and clearer skies.Temperature
With the onset of April, Keizer's average high-temperature experiences a slight rise, moving from March's cool 52.9°F (11.6°C) to a moderate 58.8°F (14.9°C). The nighttime temperature dips to a wintry 38.8°F (3.8°C) on average during April.Humidity
The average relative humidity in April is 80%.Rainfall
In Keizer, in April, during 17.7 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 162.5 rainfall days, and 25.08" (637mm) of precipitation is accumulated.Snowfall
In Keizer, snow does not fall in April through October.Daylight
In Keizer, Oregon, the average length of the day in April is 13h and 32min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:40 pm. On the last day of April, sunrise is at 6:01 am and sunset at 8:17 pm PDT.
Sunshine
In Keizer, the average sunshine in April is 7.3h.UV index
In Keizer, Oregon, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 3 during April translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Keizer, OR
- Average high temperature in April: 58.8°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (45.5°F).
- Average low temperature in April: 38.8°F
The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (34.5°F).
Average pressure in April
Keizer, OR
- Average pressure in April: 30.07"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in April
Keizer, OR
- Average wind speed in April: 5.1mph
The windiest months (with the highest average wind speed) are January, March and November (5.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in April
Keizer, OR
- Average humidity in April: 80%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (65%).
Average rainfall in April
Keizer, OR
- Average rainfall in April: 2.32"
The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in April
Keizer, OR
- Average rainfall days in April: 17.7 days
The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is July (3.9 days).
Average snowfall in April
Keizer, OR
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Keizer, OR
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (1.8 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
Keizer, OR
- Average daylight in April: 13h and 30min
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: 7h and 18min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in April
Keizer, OR
- Average sunshine days in April: 10.3 days
The month with the most sunshine days is July (26.3 days).
The month with the least sunshine days is March (8.8 days).
Average UV index in April
Keizer, 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
Keizer, OR
- Average cloud cover in April: 54
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in April
Keizer, OR
- Average visibility in April: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
