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
An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a cool 55°F (12.8°C) to an enjoyable 66.4°F (19.1°C). Throughout the month of April, Herod observes an average nighttime temperature of 48.7°F (9.3°C).Humidity
In April, the average relative humidity in Herod, Illinois, is 77%.Rainfall
The month with the most rainfall is April, when the rain falls for 16.6 days and typically aggregates up to 4.8" (122mm) of precipitation.Snowfall
Months with snowfall in Herod are January through April, October through December. April is the last month it regularly snows. During 0.6 snowfall days, in April, Herod aggregates 0.16" (4mm) of snow. In Herod, during the entire year, snow falls for 17.7 days and aggregates up to 6.57" (167mm) of snow.Daylight
In Herod, the average length of the day in April is 13h and 11min.On the first day of April, sunrise is at 6:37 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 7:43 pm CDT.
Sunshine
The average sunshine in April is 8.6h.UV index
The average daily maximum UV index in April in Herod is 4. A UV Index estimate of 3 to 5 represents 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:
Guard yourself - Avoiding sunburn is suggested. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
What is the wettest month?
How much does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Herod have in April?
How high is the UV index in April in Herod?
Average temperature in April
Herod, IL
- Average high temperature in April: 66.4°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in April: 48.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in April
Herod, IL
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Herod, IL
- Average wind speed in April: 9.3mph
The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in April
Herod, IL
- Average humidity in April: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in April
Herod, IL
- Average rainfall in April: 4.8"
The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in April
Herod, IL
- Average rainfall days in April: 16.6 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in April
Herod, IL
- Average snowfall in April: 0.16"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Herod, IL
- Average snowfall days in April: 0.6 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Herod, IL
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in April
Herod, IL
- Average sunshine days in April: 11.5 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in April
Herod, IL
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in April
Herod, IL
- Average cloud cover in April: 41
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility in April
Herod, IL
- 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).
Herod, Illinois, USA
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