Average Weather in Burley Idaho, United States
In Burley, the summers are warm and mostly clear, the winters are freezing and partly cloudy, and it is dry year round. Over the course of the year, the temperature typically varies from 20°F to 88°F and is rarely below 6°F or above 96°F.
Based on the tourism score, the best time of year to visit Burley for warm-weather activities is from early July to late August.
The hot season lasts for 3.0 months, from June 13 to September 13, with an average daily high temperature above 78°F. The hottest day of the year is July 27, with an average high of 88°F and low of 57°F.
The cold season lasts for 3.1 months, from November 20 to February 24, with an average daily high temperature below 46°F. The coldest day of the year is December 30, with an average low of 20°F and high of 35°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, 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 Burley, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Burley begins around June 10 and lasts for 4.1 months, ending around October 14. On July 29, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 82% of the time, and overcast or mostly cloudy 18% of the time.
The cloudier part of the year begins around October 14 and lasts for 7.9 months, ending around June 10. On March 2, the cloudiest day of the year, the sky is overcast or mostly cloudy 55% of the time, and clear, mostly clear, or partly cloudy 45% of the time.
Cloud Cover Categories
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. The chance of wet days in Burley varies throughout the year.
The wetter season lasts 8.0 months, from October 15 to June 13, with a greater than 12% chance of a given day being a wet day. The chance of a wet day peaks at 19% on December 3.
The drier season lasts 4.0 months, from June 13 to October 15. The smallest chance of a wet day is 5% on July 5.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 19% on May 5.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Burley experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.4 months, from September 8 to June 21, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around May 16, with an average total accumulation of 1.2 inches.
The rainless period of the year lasts for 2.6 months, from June 21 to September 8. The least rain falls around July 9, with an average total accumulation of 0.3 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Burley does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Burley varies significantly over the course of the year. In 2021, the shortest day is December 21, with 9 hours, 3 minutes of daylight; the longest day is June 20, with 15 hours, 18 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:57 AM on June 14, and the latest sunrise is 2 hours, 18 minutes later at 8:15 AM on November 6. The earliest sunset is at 5:01 PM on December 8, and the latest sunset is 4 hours, 15 minutes later at 9:16 PM on June 26.
Daylight saving time (DST) is observed in Burley during 2021, starting in the spring on March 14, lasting 7.8 months, and ending in the fall on November 7.
Sunrise & Sunset with Twilight and Daylight Saving Time
The figure below presents a compact representation of key lunar data for 2021. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.
Moon Rise, Set & Phases
The perceived humidity level in Burley, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Burley experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 6.4 months, from November 5 to May 18, with average wind speeds of more than 8.6 miles per hour. The windiest day of the year is March 28, with an average hourly wind speed of 9.8 miles per hour.
The calmer time of year lasts for 5.6 months, from May 18 to November 5. The calmest day of the year is August 4, with an average hourly wind speed of 7.3 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Burley is from the west throughout the year.
Best Time of Year to Visit
To characterize how pleasant the weather is in Burley throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Burley for general outdoor tourist activities is from early July to late August, with a peak score in the last week of July.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Burley for hot-weather activities is from early July to mid August, with a peak score in the last week of July.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season in Burley typically lasts for 5.0 months (152 days), from around May 6 to around October 5, rarely starting before April 19 or after May 25, and rarely ending before September 16 or after October 26.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Burley should appear around April 17, only rarely appearing before April 2 or after May 6.
Growing Degree Days
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.1 months, from May 14 to August 19, with an average daily incident shortwave energy per square meter above 7.0 kWh. The brightest day of the year is June 30, with an average of 8.3 kWh.
The darker period of the year lasts for 3.5 months, from October 31 to February 14, with an average daily incident shortwave energy per square meter below 3.1 kWh. The darkest day of the year is December 21, with an average of 1.9 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Burley are 42.536 deg latitude, -113.793 deg longitude, and 4,160 ft elevation.
The topography within 2 miles of Burley is essentially flat, with a maximum elevation change of 79 feet and an average elevation above sea level of 4,160 feet. Within 10 miles is essentially flat (525 feet). Within 50 miles contains significant variations in elevation (7,388 feet).
The area within 2 miles of Burley is covered by cropland (46%), artificial surfaces (33%), and shrubs (14%), within 10 miles by cropland (90%), and within 50 miles by shrubs (54%) and cropland (27%).
This report illustrates the typical weather in Burley, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Burley.
For each station, the records are corrected for the elevation difference between that station and Burley 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 Burley is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Burley and a given station.
The stations contributing to this reconstruction are: Burley Municipal Airport (98%, 2.3 kilometers, east); Twin Falls Airport (0.8%, 57 kilometers, west); and Jerome County Airport (0.8%, 58 kilometers, west).
Time zones for airports and weather stations are provided by AskGeo.com .