Average Weather in April in Saint Maries Idaho, United States
Daily high temperatures increase by 9°F, from 51°F to 60°F, rarely falling below 42°F or exceeding 74°F.
Daily low temperatures increase by 5°F, from 34°F to 40°F, rarely falling below 28°F or exceeding 48°F.
For reference, on August 3, the hottest day of the year, temperatures in Saint Maries typically range from 55°F to 84°F, while on December 30, the coldest day of the year, they range from 25°F to 33°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 Saint Maries experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 64% 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 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 75%, while on August 1, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 79%.
Cloud Cover Categories in April
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Saint Maries, the chance of a wet day over the course of April is very rapidly decreasing, starting the month at 33% and ending it at 24%.
For reference, the year's highest daily chance of a wet day is 44% on November 21, and its lowest chance is 9% on August 4.
Over the course of April in Saint Maries, the chance of a day with only rain decreases from 31% to 25%, 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 Saint Maries is gradually decreasing, starting the month at 2.1 inches, when it rarely exceeds 3.5 inches or falls below 1.0 inches, and ending the month at 1.8 inches, when it rarely exceeds 3.1 inches or falls below 0.7 inches.
The lowest average 31-day accumulation is 1.8 inches on April 27.
Average Monthly Rainfall in April
Over the course of April in Saint Maries, 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, 34 minutes, implying an average daily increase of 3 minutes, 14 seconds, and weekly increase of 22 minutes, 40 seconds.
The shortest day of the month is April 1, with 12 hours, 51 minutes of daylight and the longest day is April 30, with 14 hours, 25 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Saint Maries is 6:24 AM on April 1 and the earliest sunrise is 54 minutes earlier at 5:31 AM on April 30.
The earliest sunset is 7:16 PM on April 1 and the latest sunset is 40 minutes later at 7:56 PM on April 30.
Daylight saving time is observed in Saint Maries during 2018, but it neither starts nor ends during April, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 4:49 AM and sets 15 hours, 57 minutes later, at 8:46 PM, while on December 21, the shortest day of the year, it rises at 7:30 AM and sets 8 hours, 28 minutes later, at 3:58 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April
The chance that a given day will be muggy in Saint Maries is essentially constant during April, remaining around 0% throughout.
For reference, on July 27, 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
The average hourly wind speed in Saint Maries is essentially constant during April, remaining within 0.1 miles per hour of 5.1 miles per hour throughout.
For reference, on March 26, the windiest day of the year, the daily average wind speed is 5.2 miles per hour, while on July 30, the calmest day of the year, the daily average wind speed is 4.5 miles per hour.
Average Wind Speed in April
Wind Direction in April
The growing season in Saint Maries typically lasts for 5.4 months (166 days), from around May 1 to around October 13, rarely starting before April 9 or after May 19, and rarely ending before September 21 or after November 4.
The month of April in Saint Maries is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly increasing from 3% to 48% 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 Saint Maries are gradually increasing during April, increasing by 56°F, from 13°F to 69°F, over the course of the month.
Growing Degree Days in April
The average daily incident shortwave solar energy in Saint Maries is increasing during April, rising by 1.5 kWh, from 4.1 kWh to 5.6 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 Saint Maries are 47.314 deg latitude, -116.563 deg longitude, and 2,549 ft elevation.
The topography within 2 miles of Saint Maries contains very significant variations in elevation, with a maximum elevation change of 1,109 feet and an average elevation above sea level of 2,425 feet. Within 10 miles contains very significant variations in elevation (4,009 feet). Within 50 miles also contains extreme variations in elevation (5,784 feet).
The area within 2 miles of Saint Maries is covered by shrubs (43%), sparse vegetation (27%), and trees (22%), within 10 miles by trees (52%) and shrubs (35%), and within 50 miles by trees (47%) and shrubs (24%).
This report illustrates the typical weather in Saint Maries 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 Saint Maries.
For each station, the records are corrected for the elevation difference between that station and Saint Maries 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 Saint Maries is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Saint Maries and a given station.
The stations contributing to this reconstruction are: Coeur D'Alene Air Terminal (48%, 54 kilometers, north); Mullan Pass, Mullan Pass Vor (13%, 71 kilometers, east); Pullman–Moscow Regional Airport (29%, 76 kilometers, southwest); and Lowell (10%, 150 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .