April weather forecastTumwater, WA
April
Weather in April
April is a moderate spring month in Tumwater, Washington, with an average temperature varying between 37.9°F (3.3°C) and 57°F (13.9°C).Temperature
A gentle upsurge in temperatures occurs as March gives way to April, with average highs shifting from a fresh 51.1°F (10.6°C) to a mild 57°F (13.9°C). In April, Tumwater reports a consistent average low-temperature of 37.9°F (3.3°C) during the nights.Humidity
The average relative humidity in April in Tumwater is 82%.Rainfall
In Tumwater, in April, it is raining for 18.4 days, with typically 2.76" (70mm) of accumulated precipitation. In Tumwater, during the entire year, the rain falls for 177.4 days and collects up to 37.05" (941mm) of precipitation.Snowfall
In Tumwater, snow does not fall in April through October.Daylight
In April, the average length of the day is 13h and 38min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:41 pm. On the last day of April, in Tumwater, sunrise is at 5:55 am and sunset at 8:21 pm PDT.
Sunshine
In April, the average sunshine is 7h.UV index
In Tumwater, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 3 in April converts into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Stay sun-safe with clothing that is both closely woven and worn loosely. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Tumwater, WA
- Average high temperature in April: 57°F
The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in April: 37.9°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).
Average pressure in April
Tumwater, WA
- Average pressure in April: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in April
Tumwater, WA
- Average wind speed in April: 4.5mph
The windiest months (with the highest average wind speed) are March and November (4.6mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).
Average humidity in April
Tumwater, WA
- Average humidity in April: 82%
The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (71%).
Average rainfall in April
Tumwater, WA
- Average rainfall in April: 2.76"
The wettest month (with the highest rainfall) is December (5.79").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in April
Tumwater, WA
- Average rainfall days in April: 18.4 days
The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (5.5 days).
Average snowfall in April
Tumwater, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Tumwater, WA
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (3.3 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
Tumwater, WA
- Average daylight in April: 13h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in April: 7h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in April
Tumwater, WA
- Average sunshine days in April: 9.9 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in April
Tumwater, WA
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Tumwater, WA
- Average cloud cover in April: 58
The months with the most cloud cover are January and December (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in April
Tumwater, WA
- Average visibility in April: 4mi
The months with the highest visibility are June, July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (4mi).





