April weather forecastBlackburn, MO
April
Weather in April
April is an enjoyable spring month in Blackburn, Missouri, with an average temperature fluctuating between 64.6°F (18.1°C) and 46.8°F (8.2°C).Temperature
The commencement of April sees a shift in the average high-temperature, moving from a fresh 54.1°F (12.3°C) in March to an enjoyable 64.6°F (18.1°C). In April, Blackburn records an average nighttime temperature of 46.8°F (8.2°C).Humidity
In Blackburn, the average relative humidity in April is 74%.Rainfall
In Blackburn, in April, it is raining for 12.3 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, there are 108.2 rainfall days, and 12.17" (309mm) of precipitation is accumulated.Snowfall
April through September are months without snowfall.Daylight
The average length of the day in April is 13h and 16min.On the first day of the month, sunrise is at 6:57 am and sunset at 7:38 pm. On the last day of April, sunrise is at 6:15 am and sunset at 8:06 pm CDT.
Sunshine
The average sunshine in April is 8.3h.UV index
In Blackburn, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during April translates into these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. 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
Average temperature in April
Blackburn, MO
- Average high temperature in April: 64.6°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in April: 46.8°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in April
Blackburn, MO
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Blackburn, MO
- Average wind speed in April: 9.8mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in April
Blackburn, MO
- Average humidity in April: 74%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in April
Blackburn, MO
- Average rainfall in April: 1.3"
The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in April
Blackburn, MO
- Average rainfall days in April: 12.3 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in April
Blackburn, MO
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in April
Blackburn, MO
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Blackburn, MO
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 8h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in April
Blackburn, MO
- Average sunshine days in April: 16.1 days
The month with the most sunshine days is December (23.5 days).
The month with the least sunshine days is May (14.8 days).
Average UV index in April
Blackburn, MO
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Blackburn, MO
- Average cloud cover in April: 42
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in April
Blackburn, MO
- 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).
