Temperatures in April
It's cool in April in Rapid City with an average temperature of 13°C. Temperatures this month range from a low of 6°C to a high of 19°C. At night, you can expect temperatures between -5°C and 4°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Rapid City in April. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of April
The month of April starts in Rapid City with cool temperatures, averaging around 12°C during the day and nights close to -1°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Mid-April
By mid-April, the average daytime temperature stays the same at 12°C, with nights close to -1°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of April
By the end of April, the average daytime temperature in Rapid City will be around 16°C, with nights close to 3°C. A shower might show up, but overall the weather will be dry and sunny.
Discover cheap trips to Rapid City 
Precipitation in April
In April, there is an average of 55 mm of precipitation, spread over 7 days. Of the total precipitation, about 21 cm falls as snow in April. The wind speed is around 5 Bft, mostly coming from the Southwest.
The average precipitation chance is 23% per day this month. Though that seems low, there are also a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in April for Rapid City. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Rapid City in April |
London | ||
|---|---|---|---|
 Average Temperature |
13°C | 15°C | |
 High Temp |
19°C | 18°C | |
| Low Temp |
6°C | 12°C | |
 Total Precipitation |
55 mm | 29 mm | |
| Rainy Days |
7 days | 7 days | |
 Total Snowfall |
21 cm | 0 cm | |
| Snowy Days |
9 days | 0 days | |
March
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Temperature records for Rapid City in April
With 31°C, Rapid City hit the highest temperature in the last 10 years in April 2023. The lowest daytime temperature in this month was -9°C in 2020. The extreme night temperatures ranged from a low of -17°C to a high of 13°C.
Check out the climate of Rapid City for all months and discover the best travel time
Plan your next holiday
Don’t miss the best holiday deals for Rapid City and see what our partners have for you.
Daily Temperature in April in Rapid City
This chart shows the average daily temperatures, both day and night, for each day in April in Rapid City, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in April in Rapid City
The chart below shows the average daily precipitation in April for Rapid City, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for April, you can expect around 7 days of rain in Rapid City.
Daily Snowfall in April in Rapid City
This chart shows the average daily snowfall in April in Rapid City, measured in centimetres. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in April.
Daily UV Index in April in Rapid City
This chart shows the average daily UV index in April in Rapid City, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in April in Rapid City Over the Years
This chart shows the average temperature in April in Rapid City, measured in degrees Celsius, over the past years.
Total Precipitation in April in Rapid City Over the Years
This chart shows the average precipitation in April in Rapid City, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Snowfall in April in Rapid City per year
This chart shows the average snowfall in April in Rapid City, measured in centimetres, over the past years.
Daily climate in April for Rapid City
Click on a specific day in April for detailed info on the typical weather on that day in Rapid City. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in April in Rapid City
Have you been to Rapid City in April?
Share your weather experience in April in Rapid City.
Average Weather in Rapid City by Month
Click on a month below to see detailed weather info for Rapid City. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Rapid City for all months at once
