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Average Weather in Ponderay Idaho, United States

In Ponderay, the summers are short, warm, dry, and partly cloudy and the winters are freezing and overcast. Over the course of the year, the temperature typically varies from 23°F to 84°F and is rarely below 8°F or above 93°F.

Temperature

The warm season lasts for 2.7 months, from June 19 to September 10, with an average daily high temperature above 73°F. The hottest day of the year is August 2, with an average high of 84°F and low of 51°F.

The cold season lasts for 3.7 months, from November 12 to March 1, with an average daily high temperature below 43°F. The coldest day of the year is January 1, with an average low of 23°F and high of 33°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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

Average Hourly Temperature in PonderayJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMcoldcoolwarmfreezingvery coldcomfortable
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

In Ponderay, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year in Ponderay begins around June 8 and lasts for 4.1 months, ending around October 11. On August 2, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 77% of the time, and overcast or mostly cloudy 23% of the time.

The cloudier part of the year begins around October 11 and lasts for 7.9 months, ending around June 8. On January 10, the cloudiest day of the year, the sky is overcast or mostly cloudy 78% of the time, and clear, mostly clear, or partly cloudy 22% of the time.

Cloud Cover Categories

Cloud Cover Categories in PonderayclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 277%Aug 277%Jan 1022%Jan 1022%Jun 849%Jun 849%Oct 1150%Oct 1150%clearmostly cloudyovercastmostly clear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Ponderay varies significantly throughout the year.

The wetter season lasts 8.1 months, from October 18 to June 21, with a greater than 27% chance of a given day being a wet day. The chance of a wet day peaks at 43% on November 21.

The drier season lasts 3.9 months, from June 21 to October 18. The smallest chance of a wet day is 10% on August 4.

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 34% on November 10.

Daily Chance of Precipitation

Daily Chance of Precipitation in PonderaywetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Nov 2143%Nov 2143%Aug 410%Aug 410%Jan 136%Jan 136%Oct 1827%Oct 1827%Jun 2127%Jun 2127%rainsnowmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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. Ponderay experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Ponderay. The most rain falls during the 31 days centered around November 20, with an average total accumulation of 3.5 inches.

The least rain falls around August 5, with an average total accumulation of 0.7 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Ponderay experiences significant seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 5.1 months, from October 26 to March 31, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 30, with an average total liquid-equivalent accumulation of 1.1 inches.

The snowless period of the year lasts for 6.9 months, from March 31 to October 26. The least snow falls around July 24, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

Average Liquid-Equivalent Monthly Snowfall in PonderaysnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.5 in1.0 in1.5 in2.0 in2.5 in3.0 in3.5 inDec 301.1 inDec 301.1 inJul 240.0 inJul 240.0 inOct 260.1 inOct 260.1 inMar 310.1 inMar 310.1 in
The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day in Ponderay varies extremely over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 20 minutes of daylight; the longest day is June 20, with 16 hours, 6 minutes of daylight.

Hours of Daylight and Twilight

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 4:44 AM on June 16, and the latest sunrise is 2 hours, 53 minutes later at 7:37 AM on January 1. The earliest sunset is at 3:51 PM on December 10, and the latest sunset is 4 hours, 60 minutes later at 8:51 PM on June 25.

Daylight saving time (DST) is observed in Ponderay during 2017, starting in the spring on March 12, lasting 7.8 months, and ending in the fall on November 5.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in PonderayJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 164:44 AMJun 164:44 AM8:51 PMJun 258:51 PMJun 25Dec 103:51 PMDec 103:51 PM7:37 AMJan 17:37 AMJan 1Mar 12DSTMar 12DSTDSTNov 5DSTNov 5daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Ponderay, 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

Humidity Comfort Levels in PonderayJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Mar 230%Mar 230%Jul 280%Jul 280%drydry
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Ponderay does not vary significantly over the course of the year, remaining within 0.2 miles per hour of 4.0 miles per hour throughout.

Average Wind Speed

Average Wind Speed in PonderayJanFebMarAprMayJunJulAugSepOctNovDec0 mph1 mph2 mph3 mph4 mph5 mph6 mphApr 194.2 mphApr 194.2 mphJul 303.8 mphJul 303.8 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Ponderay varies throughout the year.

The wind is most often from the south for 1.2 months, from March 13 to April 20; for 1.8 months, from May 28 to July 22; and for 2.2 months, from October 11 to December 16, with a peak percentage of 44% on November 10. The wind is most often from the west for 1.3 months, from April 20 to May 28 and for 2.6 months, from July 22 to October 11, with a peak percentage of 40% on August 29. The wind is most often from the east for 2.9 months, from December 16 to March 13, with a peak percentage of 41% on January 1.

Wind Direction

Wind Direction in PonderayESWSWSEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%westeastsouthnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

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 16 to August 20, with an average daily incident shortwave energy per square meter above 6.1 kWh. The brightest day of the year is July 15, with an average of 7.4 kWh.

The darker period of the year lasts for 3.8 months, from October 24 to February 19, with an average daily incident shortwave energy per square meter below 2.2 kWh. The darkest day of the year is December 23, with an average of 0.9 kWh.

Average Daily Incident Shortwave Solar Energy

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Ponderay are 48.305 deg latitude, -116.534 deg longitude, and 2,123 ft elevation.

The topography within 2 miles of Ponderay contains only modest variations in elevation, with a maximum elevation change of 410 feet and an average elevation above sea level of 2,109 feet. Within 10 miles contains only modest variations in elevation (4,610 feet). Within 50 miles also contains extreme variations in elevation (6,916 feet).

The area within 2 miles of Ponderay is covered by sparse vegetation (40%), water (23%), artificial surfaces (14%), and shrubs (12%), within 10 miles by trees (44%) and shrubs (24%), and within 50 miles by trees (67%) and shrubs (20%).

Data Sources

This report illustrates the typical weather in Ponderay, 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 Ponderay.

For each station, the records are corrected for the elevation difference between that station and Ponderay 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 Ponderay is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Ponderay and a given station.

The stations contributing to this reconstruction are: Sandpoint Airport (99%, 2.1 kilometers, west); Creston Automatic Weather Reporting System (0.4%, 87 kilometers, north); and Glacier Park International Airport (0.1%, 168 kilometers, east).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.