April weather forecastRoundup, MT
April
Weather in April
Roundup, Montana, USA transitions into spring in April, with the weather conditions becoming considerably milder. Temperatures continue to rise, touching up to 53.8°F (12.1°C), signaling the retreat of the winter. Rainfall increases significantly, reaching up to 1.65" (42mm), the highest so far in the year, signaling the beginning of the rainy season. Furthermore, additional sunshine and less snowfall allow the city to embrace the warmth of spring fully.Temperature
Roundup's April weather indicates a minor increase in high-temperatures, edging from March's chilly 45°F (7.2°C) to a cool 53.8°F (12.1°C). An average nighttime temperature of 36.3°F (2.4°C) is recorded during April.Humidity
In April, the average relative humidity is 59%.Rainfall
In April, the rain falls for 13.9 days. Throughout April, 1.65" (42mm) of precipitation is accumulated. Throughout the year, there are 114.3 rainfall days, and 12.13" (308mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Roundup. In Roundup, in April, during 5 snowfall days, 3.31" (84mm) of snow is typically accumulated. In Roundup, during the entire year, snow falls for 53.5 days and aggregates up to 18.58" (472mm) of snow.Daylight
In April, the average length of the day in Roundup is 13h and 37min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:43 pm. On the last day of April, sunrise is at 5:59 am and sunset at 8:22 pm MDT.
Sunshine
In Roundup, the average sunshine in April is 8.9h.UV index
In Roundup, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In April, the maximum UV index of 3 translates into these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Roundup, MT
- Average high temperature in April: 53.8°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (31.1°F).
- Average low temperature in April: 36.3°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is February (18°F).
Average pressure in April
Roundup, MT
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in April
Roundup, MT
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in April
Roundup, MT
- Average humidity in April: 59%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (39%).
Average rainfall in April
Roundup, MT
- Average rainfall in April: 1.65"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in April
Roundup, MT
- Average rainfall days in April: 13.9 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in April
Roundup, MT
- Average snowfall in April: 3.31"
The month with the highest snowfall is February (3.78").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Roundup, MT
- Average snowfall days in April: 5 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Roundup, MT
- 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 42min).
- Average sunshine in April: 8h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).
Average sunshine days in April
Roundup, MT
- Average sunshine days in April: 12.8 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in April
Roundup, MT
- Average UV index in April: 3
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Roundup, MT
- Average cloud cover in April: 42
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in April
Roundup, MT
- 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).
