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Average Weather in Jordan Montana, United States

In Jordan, the summers are warm and mostly clear and the winters are freezing, dry, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 8°F to 88°F and is rarely below -16°F or above 98°F.

The hot season lasts for 3.0 months, from June 12 to September 13, with an average daily high temperature above 76°F. The hottest day of the year is July 28, with an average high of 88°F and low of 58°F.

The cold season lasts for 3.4 months, from November 21 to March 2, with an average daily high temperature below 41°F. The coldest day of the year is January 1, with an average low of 8°F and high of 29°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 JordanJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMcoldcoolchillywarmfreezingcomfortablefrigid
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 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 Jordan, 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 Jordan begins around June 12 and lasts for 3.8 months, ending around October 6. On July 28, 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 6 and lasts for 8.2 months, ending around June 12. On March 19, the cloudiest day of the year, the sky is overcast or mostly cloudy 61% of the time, and clear, mostly clear, or partly cloudy 39% of the time.

Cloud Cover Categories

Cloud Cover Categories in JordanclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2877%Jul 2877%Mar 1939%Mar 1939%Jun 1258%Jun 1258%Oct 657%Oct 657%clearovercastpartly cloudymostly cloudymostly 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 Jordan varies throughout the year.

The wetter season lasts 3.7 months, from April 21 to August 11, with a greater than 16% chance of a given day being a wet day. The chance of a wet day peaks at 30% on June 7.

The drier season lasts 8.3 months, from August 11 to April 21. The smallest chance of a wet day is 2% on January 23.

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 in Jordan changes throughout the year.

Rain alone is the most common for 8.8 months, from February 24 to November 18. The highest chance of a day with rain alone is 30% on June 7.

Snow alone is the most common for 3.2 months, from November 18 to February 24. The highest chance of a day with snow alone is 4% on December 28.

Daily Chance of Precipitation

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. Jordan experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 6.7 months, from April 2 to October 24, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around May 31, with an average total accumulation of 2.3 inches.

The rainless period of the year lasts for 5.3 months, from October 24 to April 2. The least rain falls around January 15, with an average total accumulation of 0.0 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

The sliding 31-day liquid-equivalent quantity of snowfall in Jordan 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

Average Liquid-Equivalent Monthly Snowfall in JordansnowJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.5 in1.0 in1.5 in2.0 in2.5 inDec 300.2 inDec 300.2 inJul 220.0 inJul 220.0 inJan 180.1 inJan 180.1 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 Jordan varies significantly over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 28 minutes of daylight; the longest day is June 20, with 15 hours, 57 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 5:10 AM on June 15, and the latest sunrise is 2 hours, 46 minutes later at 7:56 AM on November 4. The earliest sunset is at 4:17 PM on December 11, and the latest sunset is 4 hours, 51 minutes later at 9:08 PM on June 25.

Daylight saving time (DST) is observed in Jordan 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 JordanJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 155:10 AMJun 155:10 AM9:08 PMJun 259:08 PMJun 25Dec 114:17 PMDec 114:17 PM7:56 AMNov 47:56 AMNov 4Mar 12DSTMar 12DSTDSTNov 5DSTNov 5daynightnightnightnight
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 Jordan, 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 JordanJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Mar 180%Mar 180%Jul 251%Jul 251%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 Jordan experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 8.7 months, from September 19 to June 10, with average wind speeds of more than 5.9 miles per hour. The windiest day of the year is January 18, with an average hourly wind speed of 6.6 miles per hour.

The calmer time of year lasts for 3.3 months, from June 10 to September 19. The calmest day of the year is July 30, with an average hourly wind speed of 5.2 miles per hour.

Average Wind Speed

Average Wind Speed in JordanwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph1 mph2 mph3 mph4 mph5 mph6 mph7 mph8 mph9 mph10 mphJan 186.6 mphJan 186.6 mphJul 305.2 mphJul 305.2 mphSep 195.9 mphSep 195.9 mphJun 105.9 mphJun 105.9 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 Jordan varies throughout the year.

The wind is most often from the east for 1.9 weeks, from July 25 to August 7, with a peak percentage of 28% on August 1. The wind is most often from the west for 12 months, from August 7 to July 25, with a peak percentage of 55% on January 1.

Wind Direction

Wind Direction in JordanWEWJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%northeastwestsouth
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 3.3 months, from May 10 to August 20, with an average daily incident shortwave energy per square meter above 6.3 kWh. The brightest day of the year is July 2, with an average of 7.5 kWh.

The darker period of the year lasts for 3.6 months, from October 27 to February 15, with an average daily incident shortwave energy per square meter below 2.6 kWh. The darkest day of the year is December 25, with an average of 1.3 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 Jordan are 47.321 deg latitude, -106.910 deg longitude, and 2,677 ft elevation.

The topography within 2 miles of Jordan contains only modest variations in elevation, with a maximum elevation change of 207 feet and an average elevation above sea level of 2,660 feet. Within 10 miles contains only modest variations in elevation (587 feet). Within 50 miles contains significant variations in elevation (2,641 feet).

The area within 2 miles of Jordan is covered by grassland (91%), within 10 miles by grassland (91%), and within 50 miles by grassland (83%).

Data Sources

This report illustrates the typical weather in Jordan, 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 Jordan.

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

The stations contributing to this reconstruction are: Jordan Airport (99%, 2.9 kilometers, west); Glasgow International Airport (0.5%, 102 kilometers, north); Frank Wiley Field (0.4%, 127 kilometers, southeast); and Dawson Community Airport (0.2%, 161 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.