April weather forecastGranby, CO
April
Weather in April
April identifies itself as one of the transforming periods of the year in Granby creating a noticeable distance from the preceding chilly months. The maximum average temperature further escalates to 40.1°F (4.5°C), signaling a departure from the winter chill. As the cloud cover retreats, sunshine paints more hours in the day, bathing the city in its warm glow. The spring showers account for an increased rainfall, mellowing down the winter chills and providing a refreshing break. In addition, the month endures a reduction in snowfall and wind speed setting the stage for the awaiting warmer months.Temperature
April comes with a subtle rise, with the average high-temperature adjusting from a wintry 33.6°F (0.9°C) in March to a still cold 40.1°F (4.5°C). Granby encounters a steady low-temperature average of 19.2°F (-7.1°C) throughout the month of April.Humidity
In Granby, the average relative humidity in April is 76%.Rainfall
In April, the rain falls for 8.7 days. Throughout April, 1.54" (39mm) of precipitation is accumulated. In Granby, during the entire year, the rain falls for 96.3 days and collects up to 11.54" (293mm) of precipitation.Snowfall
January through June, August through December are months with snowfall. April is the month with the most snowfall. Snow falls for 15.1 days and accumulates 10.94" (278mm) of snow.Daylight
The average length of the day in April is 13h and 18min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:28 pm. On the last day of April, sunrise is at 6:03 am and sunset at 7:58 pm MDT.
Sunshine
In Granby, Colorado, the average sunshine in April is 10h.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In April, the UV index of 2 transforms into the following advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Granby, CO
- Average high temperature in April: 40.1°F
The warmest month (with the highest average high temperature) is July (72.3°F).
The month with the lowest average high temperature is December (24.6°F).
- Average low temperature in April: 19.2°F
The month with the highest average low temperature is July (43.7°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).
Average pressure in April
Granby, CO
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are April, May and June (29.93"Hg).
Average wind speed in April
Granby, CO
- Average wind speed in April: 6.7mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in April
Granby, CO
- Average humidity in April: 76%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is June (49%).
Average rainfall in April
Granby, CO
- Average rainfall in April: 1.54"
The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is August (0.55").
Average rainfall days in April
Granby, CO
- Average rainfall days in April: 8.7 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is October (4.9 days).
Average snowfall in April
Granby, CO
- Average snowfall in April: 10.94"
The month with the highest snowfall is April (10.94").
The month with the least snowfall is July (0").
Average snowfall days in April
Granby, CO
- Average snowfall days in April: 15.1 days
The month with the highest number of snowfall days is February (16.1 days).
The month with the least snowfall days is July (0 days).
Average daylight in April /
Average sunshine in April
Granby, CO
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 10h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in April
Granby, CO
- Average sunshine days in April: 9.9 days
The months with the most sunshine days are September and November (19.5 days).
The month with the least sunshine days is May (9.5 days).
Average UV index in April
Granby, CO
- Average UV index in April: 2
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in April
Granby, CO
- Average cloud cover in April: 35
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in April
Granby, CO
- Average visibility in April: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).





