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 marks a minor ascent in the average high-temperature, adjusting from March's frosty 46.6°F (8.1°C) to a fresh 52°F (11.1°C). April brings Hamilton a consistent average low-temperature of 37.8°F (3.2°C).Humidity
In Hamilton, the average relative humidity in April is 83%.Rainfall
In Hamilton, Washington, during April, the rain falls for 20.8 days and regularly aggregates up to 4.17" (106mm) of precipitation. In Hamilton, during the entire year, the rain falls for 203.2 days and collects up to 49.72" (1263mm) of precipitation.Snowfall
Months with snowfall in Hamilton are January through April, November and December. April is the last month it regularly snows. During 0.2 snowfall days, in April, Hamilton aggregates 0.24" (6mm) of snow. In Hamilton, during the entire year, snow falls for 12 days and aggregates up to 12.32" (313mm) of snow.Daylight
In April, the average length of the day is 13h and 44min.On the first day of April, sunrise is at 6:43 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:21 pm PDT.
Sunshine
In Hamilton, Washington, the average sunshine in April is 7.2h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 3 during April leads to these advisories:
Exercise caution. Those with pale skin may experience burns in less than half an hour. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in Hamilton?
What is the average humidity in April in Hamilton?
How many days does it rain in April in Hamilton?
What is the last month it snows in Hamilton?
What is the average length of the day in April in Hamilton?
When are sunrise and sunset in April in Hamilton?
How long on average sun shines in April in Hamilton?
How high is the UV index in April in Hamilton?
Average temperature in April
Hamilton, WA
- Average high temperature in April: 52°F
The warmest month (with the highest average high temperature) is July (70.9°F).
The month with the lowest average high temperature is December (40.5°F).
- Average low temperature in April: 37.8°F
The month with the highest average low temperature is August (50.5°F).
The coldest months (with the lowest average low temperature) are February and December (32.5°F).
Average pressure in April
Hamilton, WA
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in April
Hamilton, WA
- Average wind speed in April: 4.7mph
The windiest month (with the highest average wind speed) is November (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in April
Hamilton, WA
- Average humidity in April: 83%
The months with the highest relative humidity are January, February and March (86%).
The month with the lowest relative humidity is July (75%).
Average rainfall in April
Hamilton, WA
- Average rainfall in April: 4.17"
The wettest month (with the highest rainfall) is November (7.09").
The driest month (with the least rainfall) is July (0.98").
Average rainfall days in April
Hamilton, WA
- Average rainfall days in April: 20.8 days
The month with the highest number of rainy days is March (22.1 days).
The month with the least rainy days is August (9.4 days).
Average snowfall in April
Hamilton, WA
- Average snowfall in April: 0.24"
The month with the highest snowfall is February (4.96").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Hamilton, WA
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Hamilton, WA
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in April: 7h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in April
Hamilton, WA
- Average sunshine days in April: 7.4 days
The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is March (7.3 days).
Average UV index in April
Hamilton, WA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in April
Hamilton, WA
- Average cloud cover in April: 56
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in April
Hamilton, WA
- Average visibility in April: 5mi
The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (5mi).
Hamilton, Washington, USA
Weather forecast for your location
2. Allow the app to use your location