Average Weather in April in Lolo Montana, United States
Daily high temperatures increase by 9°F, from 53°F to 62°F, rarely falling below 42°F or exceeding 77°F.
Daily low temperatures increase by 6°F, from 31°F to 37°F, rarely falling below 23°F or exceeding 46°F.
For reference, on July 26, the hottest day of the year, temperatures in Lolo typically range from 53°F to 86°F, while on January 1, the coldest day of the year, they range from 18°F to 30°F.
Average High and Low Temperature in April
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in April
The month of April in Lolo experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 61% to 55%.
The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 45% of the time.
For reference, on January 10, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 66%, while on July 22, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 78%.
Cloud Cover Categories in April
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Lolo, the chance of a wet day over the course of April is essentially constant, remaining around 23% throughout.
For reference, the year's highest daily chance of a wet day is 36% on June 3, and its lowest chance is 14% on July 25.
Over the course of April in Lolo, the chance of a day with only rain increases from 20% to 23%, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.
Probability of Precipitation in April
The average sliding 31-day rainfall during April in Lolo is gradually increasing, starting the month at 1.1 inches, when it rarely exceeds 1.9 inches or falls below 0.3 inches, and ending the month at 1.4 inches, when it rarely exceeds 2.3 inches or falls below 0.5 inches.
Average Monthly Rainfall in April
Over the course of April in Lolo, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 32 minutes, implying an average daily increase of 3 minutes, 10 seconds, and weekly increase of 22 minutes, 10 seconds.
The shortest day of the month is April 1, with 12 hours, 52 minutes of daylight and the longest day is April 30, with 14 hours, 24 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Lolo is 7:14 AM on April 1 and the earliest sunrise is 52 minutes earlier at 6:21 AM on April 30.
The earliest sunset is 8:06 PM on April 1 and the latest sunset is 39 minutes later at 8:45 PM on April 30.
Daylight saving time is observed in Lolo during 2020, but it neither starts nor ends during April, so the entire month is in daylight saving time.
For reference, on June 20, the longest day of the year, the Sun rises at 5:42 AM and sets 15 hours, 52 minutes later, at 9:33 PM, while on December 21, the shortest day of the year, it rises at 8:18 AM and sets 8 hours, 32 minutes later, at 4:51 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April
The chance that a given day will be muggy in Lolo is essentially constant during April, remaining around 0% throughout.
For reference, on July 24, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in April
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Lolo is essentially constant during April, remaining within 0.1 miles per hour of 4.5 miles per hour throughout.
For reference, on January 17, the windiest day of the year, the daily average wind speed is 4.8 miles per hour, while on August 9, the calmest day of the year, the daily average wind speed is 3.9 miles per hour.
Average Wind Speed in April
The hourly average wind direction in Lolo throughout April is predominantly from the west, with a peak proportion of 55% on April 20.
Wind Direction in April
The growing season in Lolo typically lasts for 4.4 months (136 days), from around May 14 to around September 27, rarely starting before April 25 or after June 3, and rarely ending before September 7 or after October 15.
The month of April in Lolo is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season increasing from 0% to 18% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in April
The average accumulated growing degree days in Lolo are gradually increasing during April, increasing by 64°F, from 16°F to 80°F, over the course of the month.
Growing Degree Days in April
The average daily incident shortwave solar energy in Lolo is increasing during April, rising by 1.2 kWh, from 4.7 kWh to 6.0 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in April
For the purposes of this report, the geographical coordinates of Lolo are 46.759 deg latitude, -114.081 deg longitude, and 3,435 ft elevation.
The topography within 2 miles of Lolo contains very significant variations in elevation, with a maximum elevation change of 1,391 feet and an average elevation above sea level of 3,368 feet. Within 10 miles contains very significant variations in elevation (6,050 feet). Within 50 miles also contains extreme variations in elevation (7,244 feet).
The area within 2 miles of Lolo is covered by sparse vegetation (45%), grassland (24%), shrubs (13%), and cropland (12%), within 10 miles by shrubs (28%) and trees (26%), and within 50 miles by trees (46%) and shrubs (22%).
This report illustrates the typical weather in Lolo year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Lolo.
For each station, the records are corrected for the elevation difference between that station and Lolo according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Lolo is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Lolo and a given station.
The stations contributing to this reconstruction are: Missoula International Airport (89%, 18 kilometers, north); Lowell (4.3%, 135 kilometers, southwest); Bert Mooney Airport (3.7%, 150 kilometers, southeast); and Lemhi County Airport (3.1%, 183 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .