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
Richland observes a slight uplift in the average high-temperature with the onset of April, adjusting from March's fresh 54.7°F (12.6°C) to a refreshing 63.3°F (17.4°C). In the month of April, an average of 43.2°F (6.2°C) marks the low-temperature.Humidity
The average relative humidity in April is 53%.Rainfall
In April, in Richland, the rain falls for 9.9 days. Throughout April, 0.51" (13mm) of precipitation is accumulated. In Richland, during the entire year, the rain falls for 100.2 days and collects up to 7.05" (179mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in April is 13h and 36min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:26 pm. On the last day of April, in Richland, sunrise is at 5:43 am and sunset at 8:05 pm PDT.
Sunshine
In April, the average sunshine is 10.2h.UV index
In Richland, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 4 in April suggests the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What is the usual temperature for Richland in April?
What is the average humidity in April in Richland?
How many days does it rain in April in Richland?
When it does not snow in Richland?
Does it snow in Richland in April?
What is the average length of the day in April in Richland?
When are sunrise and sunset in April in Richland?
How long on average sun shines in April in Richland?
What is the UV index reading in April in Richland?
Average temperature in April
Richland, WA
- Average high temperature in April: 63.3°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (38.1°F).
- Average low temperature in April: 43.2°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (27.5°F).
Average pressure in April
Richland, WA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in April
Richland, WA
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).
Average humidity in April
Richland, WA
- Average humidity in April: 53%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is July (35%).
Average rainfall in April
Richland, WA
- Average rainfall in April: 0.51"
The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and September (0.2").
Average rainfall days in April
Richland, WA
- Average rainfall days in April: 9.9 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in April
Richland, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Richland, WA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is December (3.3 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
Richland, WA
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in April: 10h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in April
Richland, WA
- Average sunshine days in April: 17 days
The month with the most sunshine days is July (25.7 days).
The months with the least sunshine days are February and March (15.3 days).
Average UV index in April
Richland, WA
- Average UV index in April: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Richland, WA
- Average cloud cover in April: 32
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in April
Richland, WA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Richland, Washington, USA
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