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June Weather in Lewiston Idaho, United States

Daily high temperatures increase by 10°F, from 76°F to 86°F, rarely falling below 65°F or exceeding 98°F.

Daily low temperatures increase by 6°F, from 54°F to 60°F, rarely falling below 47°F or exceeding 68°F.

For reference, on August 1, the hottest day of the year, temperatures in Lewiston typically range from 64°F to 93°F, while on December 21, the coldest day of the year, they range from 31°F to 40°F.

Average High and Low Temperature in June in Lewiston

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 hourly average temperatures for the quarter of the year centered on June. 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 June in Lewiston

Average Hourly Temperature in June in LewistonJun11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMMayJulNowNowcoldcoolcoolcomfortablecomfortablewarmhot
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 average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

San Polo, Italy (5,345 miles away) and Kavadarci, Macedonia (5,872 miles) are the far-away foreign places with temperatures most similar to Lewiston (view comparison).

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The month of June in Lewiston experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 49% to 30%.

The clearest day of the month is June 30, with clear, mostly clear, or partly cloudy conditions 70% of the time.

For reference, on January 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 65%, while on July 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 81%.

Cloud Cover Categories in June in Lewiston

Cloud Cover Categories in June in LewistonJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MayJulJun 151%Jun 151%Jun 3070%Jun 3070%Jun 1156%Jun 1156%Jun 2163%Jun 2163%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Lewiston, the chance of a wet day over the course of June is very rapidly decreasing, starting the month at 28% and ending it at 18%.

For reference, the year's highest daily chance of a wet day is 37% on November 27, and its lowest chance is 8% on August 4.

Probability of Precipitation in June in Lewiston

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 month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during June in Lewiston is decreasing, starting the month at 1.8 inches, when it rarely exceeds 3.1 inches or falls below 0.7 inches, and ending the month at 1.0 inches, when it rarely exceeds 2.0 inches or falls below 0.3 inches.

Average Monthly Rainfall in June in Lewiston

Average Monthly Rainfall in June in LewistonJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 inMayJulJun 11.8 inJun 11.8 inJun 301.0 inJun 301.0 inJun 111.6 inJun 111.6 inJun 211.2 inJun 211.2 inNowNow
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 snowfall.

Over the course of June in Lewiston, the length of the day is essentially constant. The shortest day of the month is June 1, with 15 hours, 35 minutes of daylight and the longest day is June 20, with 15 hours, 49 minutes of daylight.

Hours of Daylight and Twilight in June in Lewiston

Hours of Daylight and Twilight in June in LewistonJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrMayJulJun 2015 hr, 49 minJun 2015 hr, 49 minnightnightdaydayJun 115 hr, 35 minJun 115 hr, 35 minNowNow
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 of the month in Lewiston is 4:54 AM on June 15 and the latest sunrise is 4 minutes later at 4:59 AM on June 30.

The earliest sunset is 8:33 PM on June 1 and the latest sunset is 11 minutes later at 8:44 PM on June 25.

Daylight saving time is observed in Lewiston during 2024, but it neither starts nor ends during June, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 4:55 AM and sets 15 hours, 49 minutes later, at 8:44 PM, while on December 21, the shortest day of the year, it rises at 7:28 AM and sets 8 hours, 35 minutes later, at 4:04 PM.

Sunrise & Sunset with Twilight in June in Lewiston

Sunrise & Sunset with Twilight in June in LewistonJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMMayJul4:54 AM4:54 AMJun 158:42 PMJun 158:42 PM4:56 AM4:56 AMJun 258:44 PMJun 258:44 PM4:58 AM4:58 AMJun 18:33 PMJun 18:33 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of June. 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 figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in June in Lewiston

Solar Elevation and Azimuth in June in LewistonJun11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMMayJul00101020202030304040505050606000010102020303030404050506060NowNow
northeastsouthwest
Solar elevation and azimuth over the course of June 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for June 2024. 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in June in Lewiston

Moon Rise, Set & Phases in June in LewistonJun11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMayJulMay 78:23 PMMay 78:23 PMMay 236:54 AMMay 236:54 AMJun 65:38 AMJun 65:38 AMJun 216:09 PMJun 216:09 PMJul 53:58 PMJul 53:58 PMJul 213:18 AMJul 213:18 AM4:55 AM4:55 AM8:09 PM8:09 PM8:04 PM8:04 PM4:44 AM4:44 AM4:31 AM4:31 AM9:40 PM9:40 PM9:15 PM9:15 PM4:59 AM4:59 AM4:11 AM4:11 AM9:18 PM9:18 PM8:45 PM8:45 PM5:07 AM5:07 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Jun 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
29%2:18 AME3:02 PMW-8:37 AMS228,833 mi
2
18%2:37 AME4:23 PMWNW-9:25 AMS228,765 mi
3
10%2:57 AMENE5:45 PMWNW-10:15 AMS229,274 mi
4
4%3:21 AMENE7:07 PMNW-11:08 AMS230,425 mi
5
1%3:52 AMNE8:28 PMNW-12:04 PMS232,231 mi
6
0%4:31 AMNE9:40 PMNW-1:03 PMS234,625 mi
7
2%5:23 AMNE10:39 PMNW-2:02 PMS237,457 mi
8
7%6:26 AMNE11:24 PMNW-2:59 PMS240,512 mi
9
13%7:36 AMNE11:57 PMNW-3:52 PMS243,542 mi
10
21%8:48 AMENE--4:41 PMS246,301 mi
11
30%-12:22 AMWNW9:58 AMENE5:25 PMS248,567 mi
12
39%-12:42 AMWNW11:06 AMENE6:07 PMS250,167 mi
13
50%-12:59 AMWNW12:12 PME6:46 PMS250,986 mi
14
58%-1:14 AMW1:16 PME7:24 PMS250,970 mi
15
68%-1:28 AMW2:21 PME8:03 PMS250,133 mi
16
77%-1:43 AMWSW3:27 PMESE8:44 PMS248,552 mi
17
85%-1:59 AMWSW4:35 PMESE9:27 PMS246,362 mi
18
91%-2:19 AMWSW5:46 PMESE10:15 PMS243,741 mi
19
96%-2:43 AMSW7:00 PMSE11:08 PMS240,901 mi
20
98%-3:16 AMSW8:11 PMSE--
21
100%-4:00 AMSW9:15 PMSE12:06 AMS238,066 mi
22
100%-4:59 AMSW10:09 PMSE1:07 AMS235,448 mi
23
98%-6:10 AMSW10:50 PMSE2:09 AMS233,221 mi
24
93%-7:29 AMSW11:21 PMESE3:09 AMS231,497 mi
25
86%-8:52 AMWSW11:45 PMESE4:06 AMS230,316 mi
26
77%-10:13 AMWSW-4:58 AMS229,657 mi
27
66%12:06 AMESE11:33 AMW-5:48 AMS229,466 mi
28
50%12:24 AME12:52 PMW-6:35 AMS229,677 mi
29
42%12:42 AME2:10 PMWNW-7:22 AMS230,238 mi
30
31%1:01 AMENE3:30 PMWNW-8:10 AMS231,118 mi

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 chance that a given day will be muggy in Lewiston is essentially constant during June, remaining around 0% throughout.

For reference, on July 15, 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 June in Lewiston

Humidity Comfort Levels in June in LewistonJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%MayJulJun 10%Jun 10%Jun 300%Jun 300%Jun 110%Jun 110%Jun 210%Jun 210%NowNowdrydryhumidhumid
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 Lewiston is essentially constant during June, remaining within 0.2 miles per hour of 6.4 miles per hour throughout.

For reference, on March 26, the windiest day of the year, the daily average wind speed is 7.3 miles per hour, while on August 11, the calmest day of the year, the daily average wind speed is 5.8 miles per hour.

Average Wind Speed in June in Lewiston

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Lewiston throughout June is predominantly from the west, with a peak proportion of 57% on June 20.

Wind Direction in June in Lewiston

Wind Direction in June in LewistonJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%MayJulNowNowwesteastnorthsouth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Lewiston typically lasts for 7.5 months (229 days), from around March 22 to around November 6, rarely starting before February 22 or after April 16, and rarely ending before October 14 or after December 1.

The month of June in Lewiston is reliably fully within the growing season.

Time Spent in Various Temperature Bands and the Growing Season in June in Lewiston

Time Spent in Various Temperature Bands and the Growing Season in June in Lewistongrowing seasongrowing seasongrowing seasonJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MayJul100%Jun 16100%Jun 16Jul 14100%Jul 14100%NowNowcoldcoolcomfortablewarmhotvery coldsweltering
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 percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Lewiston are rapidly increasing during June, increasing by 505°F, from 588°F to 1,093°F, over the course of the month.

Growing Degree Days in June in Lewiston

Growing Degree Days in June in LewistonJun112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030500°F500°F600°F600°F700°F700°F800°F800°F900°F900°F1,000°F1,000°F1,100°F1,100°F1,200°F1,200°F1,300°F1,300°FMayJulJun 1588°FJun 1588°FJun 301,093°FJun 301,093°FJun 11738°FJun 11738°FJun 21913°FJun 21913°FNowNow
The average growing degree days accumulated over the course of June, with 25th to 75th and 10th to 90th percentile bands.

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 in Lewiston is gradually increasing during June, rising by 0.9 kWh, from 6.7 kWh to 7.5 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in June in Lewiston

Average Daily Incident Shortwave Solar Energy in June in LewistonJun1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhMayJulJun 16.7 kWhJun 16.7 kWhJun 307.5 kWhJun 307.5 kWhJun 117.0 kWhJun 117.0 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Lewiston are 46.417 deg latitude, -117.018 deg longitude, and 741 ft elevation.

The topography within 2 miles of Lewiston contains very significant variations in elevation, with a maximum elevation change of 1,007 feet and an average elevation above sea level of 904 feet. Within 10 miles contains very significant variations in elevation (2,365 feet). Within 50 miles contains large variations in elevation (5,830 feet).

The area within 2 miles of Lewiston is covered by artificial surfaces (43%), shrubs (25%), water (19%), and grassland (13%), within 10 miles by cropland (45%) and grassland (30%), and within 50 miles by cropland (33%) and shrubs (32%).

This report illustrates the typical weather in Lewiston, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Lewiston.

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

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Lewiston and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

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.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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